/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* SISTEMA DE COLORES COHESIVO */
    /* Primarios - Azul médico profesional */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;   /* Color principal */
    --primary-600: #2563eb;   /* Hover states */
    --primary-700: #1d4ed8;   /* Active states */
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    
    /* Secundarios - Verde salud/éxito */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;
    
    /* Advertencia - Naranja cálido */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    
    /* Error - Rojo clínico */
    --error-50: #fef2f2;
    --error-100: #fee2e2;
    --error-500: #ef4444;
    --error-600: #dc2626;
    
    /* GRISES NEUTROS - Escala perfecta */
    --gray-25: #fcfcfd;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* ALIASES SEMÁNTICOS */
    --color-primary: var(--primary-500);
    --color-primary-hover: var(--primary-600);
    --color-primary-active: var(--primary-700);
    --color-success: var(--success-500);
    --color-warning: var(--warning-500);
    --color-error: var(--error-500);
    
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-700);
    --text-tertiary: var(--gray-500);
    --text-muted: var(--gray-400);
    
    --bg-primary: #ffffff;
    --bg-secondary: var(--gray-25);
    --bg-tertiary: var(--gray-50);
    --bg-muted: var(--gray-100);
    
    --border-primary: var(--gray-200);
    --border-secondary: var(--gray-100);
    
    /* SOMBRAS PROFESIONALES */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* BORDER RADIUS SISTEMÁTICO */
    --radius-none: 0;
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* ESPACIADO MODULAR - Sistema 4px */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */
    
    /* TIPOGRAFÍA RESPONSIVA OPTIMIZADA */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* TRANSICIONES SUAVES */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-INDEX SISTEMÁTICO */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    font-size: var(--text-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding-inline: var(--space-5);
}

@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-8);
    }
}

@media (min-width: 1200px) {
    .container {
        padding-inline: var(--space-10);
    }
}

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

section {
    padding-block: var(--space-12);
}

@media (min-width: 768px) {
    section {
        padding-block: var(--space-16);
    }
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--text-primary);
    position: relative;
    letter-spacing: -0.025em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: calc(-1 * var(--space-4));
    left: 50%;
    transform: translateX(-50%);
    width: 3rem;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-full);
}

/* Header & Navigation */
.header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    border-bottom: 1px solid var(--border-secondary);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-block: var(--space-5);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
}

.logo:hover {
    color: var(--primary-600);
    transform: translateY(-1px);
}

.logo-image {
    height: 60px;
    width: auto;
    object-fit: contain;
    transition: all var(--transition-fast);
}

.logo-text {
    font-size: var(--text-xl);
    font-weight: 700;
    color: inherit;
    letter-spacing: -0.025em;
}

.main-nav {
    transition: all var(--transition-normal);
}

.nav-list {
    display: flex;
    gap: var(--space-8);
    align-items: center;
}

.nav-list a {
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
}

.nav-list a:hover {
    color: var(--color-primary);
    background-color: var(--primary-50);
}

.nav-list a.active {
    color: var(--color-primary);
    background-color: var(--primary-100);
    font-weight: 600;
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: -var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-full);
}

.contact-button {
    background: linear-gradient(135deg, var(--color-primary), var(--primary-600));
    color: var(--bg-primary);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: var(--text-base);
    transition: all var(--transition-normal);
    position: relative;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    box-shadow: var(--shadow-md);
}

.contact-button:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: var(--bg-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.contact-button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background-color: var(--primary-50);
    color: var(--primary-600);
}

/* Responsive Navigation */
@media (max-width: 768px) {
    .header-container {
        padding-block: var(--space-3);
    }
    
    .logo-image {
        height: 45px;
    }
    
    .logo-text {
        font-size: var(--text-lg);
    }
    
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: all var(--transition-normal);
        border-top: 1px solid var(--border-secondary);
    }
    
    .main-nav.active {
        max-height: 300px;
        padding-block: var(--space-4);
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--space-1);
        padding-inline: var(--space-5);
    }
    
    .nav-list a {
        width: 100%;
        text-align: center;
        padding: var(--space-3);
        border-radius: var(--radius-md);
    }
    
    .nav-list a.active::after {
        display: none;
    }
    
    .contact-button {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }
}

/* Breadcrumb */
.breadcrumb {
    background-color: var(--bg-tertiary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-secondary);
}

.breadcrumb ul {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.breadcrumb li {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: var(--space-2);
    color: var(--text-muted);
}

.breadcrumb li:last-child {
    color: var(--color-primary);
    font-weight: 500;
}

/* Hero Section */
.hero {
    padding: var(--space-12) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-50) 100%);
    border-bottom: 1px solid var(--border-secondary);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-8);
    min-height: 70vh;
    margin-bottom: var(--space-12);
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    padding-right: var(--space-4);
}

.hero-title {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.hero-description {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 95%;
    font-weight: 500;
}

/* Servicios destacados en el hero */
.hero-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-3);
    margin: var(--space-4) 0;
}

.service-highlight {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--primary-200);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
}

.service-highlight:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-100) 0%, var(--primary-50) 100%);
}

.service-highlight i {
    font-size: var(--text-xl);
    color: var(--color-primary);
    background: var(--bg-primary);
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.service-highlight div {
    display: flex;
    flex-direction: column;
}

.service-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.service-desc {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: 500;
}

.service-info {
    display: grid;
    grid-template-columns: auto auto 1fr;
    grid-template-areas: 
        "price tests schedule";
    align-items: start;
    gap: var(--space-8);
    padding: var(--space-6);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-secondary);
    box-shadow: var(--shadow-sm);
}

.price {
    grid-area: price;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-200);
    min-width: 120px;
}

.tests-info {
    grid-area: tests;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-200);
    min-width: 140px;
}

.schedule-group {
    grid-area: schedule;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-2);
}

.schedule-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2);
    background: linear-gradient(135deg, var(--success-50) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--success-200);
}

.schedule-info i {
    font-size: var(--text-lg);
    color: var(--color-success);
}

.schedule-info div {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.schedule-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.schedule-desc {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Estilo específico para información de citas */
.appointment-info {
    background: linear-gradient(135deg, var(--warning-50) 0%, var(--bg-primary) 100%);
    border: 1px solid var(--warning-200);
    padding: var(--space-2);
}

.appointment-info i {
    color: var(--color-warning);
}

.appointment-info .schedule-desc {
    color: var(--warning-600);
    font-weight: 600;
}

/* Ventajas competitivas */
.hero-advantages {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin: var(--space-6) 0;
    padding: var(--space-5);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-25) 100%);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--color-primary);
}

.advantage-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-weight: 500;
    line-height: 1.4;
}

.advantage-item i {
    color: var(--color-success);
    font-size: var(--text-base);
    flex-shrink: 0;
}

/* Imagen del hero - Agrandada y optimizada */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.hero-image img {
    width: 100%;
    height: auto;
    min-height: 400px;
    max-height: 550px;
    border-radius: var(--radius-3xl);
    object-fit: cover;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--border-secondary);
    transition: transform var(--transition-slow);
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* Contenido integrado de "Quiénes Somos" dentro del Hero */
.about-content-integrated {
    padding-top: var(--space-10);
    border-top: 1px solid var(--border-secondary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-3xl);
    padding: var(--space-10);
    margin-top: var(--space-10);
    box-shadow: var(--shadow-xl);
    position: relative;
}

.about-content-integrated::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.about-content-integrated .about-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--space-16);
}

.about-content-integrated .about-content p {
    margin-bottom: var(--space-6);
    color: var(--text-secondary);
    font-size: var(--text-lg);
    line-height: 1.7;
}

.about-content-integrated .about-content p:last-child {
    margin-bottom: 0;
}

.about-content-integrated .about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
}

/* Responsive Hero Section */
@media (max-width: 1024px) {
    .hero-container {
        gap: var(--space-6);
        grid-template-columns: 1fr 1fr;
    }
    
    .service-info {
        gap: var(--space-6);
        padding: var(--space-4);
    }
    
    .hero-services {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        margin: var(--space-5) 0;
    }
    
    .service-highlight {
        padding: var(--space-3);
    }
    
    .hero-advantages {
        margin: var(--space-5) 0;
        padding: var(--space-4);
    }
    
    .hero-image img {
        min-height: 400px;
        max-height: 500px;
    }
    
    .about-content-integrated {
        padding: var(--space-10);
        margin-top: var(--space-10);
    }
    
    .about-content-integrated .about-content {
        margin-bottom: var(--space-12);
    }
    
    .about-content-integrated .about-stats {
        gap: var(--space-6);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--space-10) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        text-align: center;
        min-height: auto;
    }
    
    .hero-content {
        order: 2;
        gap: var(--space-4);
        padding-right: 0;
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-image img {
        min-height: 300px;
        max-height: 400px;
        width: 100%;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-description {
        font-size: var(--text-base);
        max-width: 100%;
    }
    
    .hero-services {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        margin: var(--space-4) 0;
    }
    
    .service-highlight {
        justify-content: center;
        text-align: center;
        flex-direction: column;
        gap: var(--space-2);
        padding: var(--space-3);
    }
    
    .service-highlight div {
        align-items: center;
    }
    
    .service-info {
        flex-direction: column;
        gap: var(--space-4);
        padding: var(--space-5);
    }
    
    .schedule-info {
        flex-direction: column;
        text-align: center;
        gap: var(--space-2);
    }
    
    .schedule-info div {
        align-items: center;
    }
    
    .hero-advantages {
        margin: var(--space-4) 0;
        padding: var(--space-4);
        text-align: left;
    }
    
    .advantage-item {
        justify-content: flex-start;
        text-align: left;
    }
    
    .price, .tests-info {
        width: 100%;
    }
    
    .cta-button {
        align-self: center;
        padding: var(--space-3) var(--space-6);
        font-size: var(--text-base);
    }
    
    .about-content-integrated {
        padding: var(--space-8);
        margin-top: var(--space-8);
    }
    
    .about-content-integrated .about-content {
        margin-bottom: var(--space-10);
    }
    
    .about-content-integrated .about-content p {
        font-size: var(--text-base);
        margin-bottom: var(--space-5);
    }
    
    .about-content-integrated .about-stats {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--space-8) 0;
    }
    
    .hero-container {
        gap: var(--space-5);
    }
    
    .hero-title {
        font-size: var(--text-2xl);
    }
    
    .hero-description {
        font-size: var(--text-sm);
    }
    
    .hero-image img {
        min-height: 250px;
        max-height: 320px;
        width: 100%;
    }
    
    .hero-services {
        margin: var(--space-3) 0;
        gap: var(--space-2);
    }
    
    .service-highlight {
        padding: var(--space-2);
        gap: var(--space-2);
    }
    
    .service-highlight i {
        width: 35px;
        height: 35px;
        font-size: var(--text-lg);
    }
    
    .service-title {
        font-size: var(--text-sm);
    }
    
    .service-desc {
        font-size: var(--text-xs);
    }
    
    .service-info {
        padding: var(--space-4);
        gap: var(--space-3);
    }
    
    .schedule-info {
        padding: var(--space-2);
    }
    
    .schedule-group {
        padding: var(--space-1);
        gap: var(--space-2);
    }
    
    .schedule-title {
        font-size: var(--text-xs);
    }
    
    .schedule-desc {
        font-size: 10px;
    }
    
    .hero-advantages {
        margin: var(--space-3) 0;
        padding: var(--space-3);
        gap: var(--space-2);
    }
    
    .advantage-item {
        font-size: var(--text-sm);
        gap: var(--space-2);
    }
    
    .advantage-item i {
        font-size: var(--text-sm);
    }
    
    .price-value,
    .tests-count {
        font-size: var(--text-2xl);
    }
    
    .about-content-integrated {
        padding: var(--space-6);
        margin-top: var(--space-6);
    }
    
    .about-content-integrated .about-content {
        margin-bottom: var(--space-8);
    }
    
    .about-content-integrated .about-content p {
        font-size: var(--text-sm);
        margin-bottom: var(--space-4);
    }
    
    .about-content-integrated .about-stats {
        gap: var(--space-4);
    }
}

/* Testimonial */
.testimonial {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--primary-700) 100%);
    color: var(--bg-primary);
    padding: var(--space-16) 0;
    position: relative;
    overflow: hidden;
}

.testimonial::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: rotate(45deg);
    pointer-events: none;
}

.testimonial-quote {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.testimonial-quote i {
    font-size: 3rem;
    margin-bottom: var(--space-6);
    color: var(--primary-200);
    opacity: 0.8;
}

.testimonial-quote blockquote {
    font-size: var(--text-xl);
    font-weight: 500;
    margin-bottom: var(--space-6);
    line-height: 1.7;
    font-style: italic;
    letter-spacing: -0.01em;
}

.testimonial-author {
    font-size: var(--text-base);
    color: var(--primary-100);
    font-weight: 600;
    position: relative;
}

.testimonial-author::before {
    content: '—';
    margin-right: var(--space-2);
    opacity: 0.7;
}

/* About Section */
.about {
    background-color: var(--bg-primary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-primary), transparent);
}

.about-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--space-16);
}

.about-content p {
    margin-bottom: var(--space-6);
    color: var(--text-secondary);
    font-size: var(--text-lg);
    line-height: 1.7;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    padding: var(--space-12) 0;
}

.stat-item {
    text-align: center;
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-50) 100%);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-secondary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
}

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
    line-height: 1;
    display: block;
}

.stat-label {
    font-size: var(--text-base);
    color: var(--text-secondary);
    font-weight: 500;
    line-height: 1.4;
}

/* Responsive About Section */
@media (max-width: 768px) {
    .about-content {
        margin-bottom: var(--space-12);
    }
    
    .about-content p {
        font-size: var(--text-base);
        margin-bottom: var(--space-5);
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        padding: var(--space-8) 0;
    }
    
    .stat-item {
        padding: var(--space-6);
    }
    
    .stat-number {
        font-size: var(--text-3xl);
    }
    
    .stat-label {
        font-size: var(--text-sm);
    }
}

@media (max-width: 480px) {
    .testimonial {
        padding: var(--space-12) 0;
    }
    
    .testimonial-quote i {
        font-size: 2rem;
        margin-bottom: var(--space-4);
    }
    
    .testimonial-quote blockquote {
        font-size: var(--text-lg);
        margin-bottom: var(--space-4);
    }
    
    .about-content p {
        font-size: var(--text-sm);
    }
    
    .stat-item {
        padding: var(--space-5);
    }
    
    .stat-number {
        font-size: var(--text-2xl);
    }
}

/* Services Section */
.services {
    background-color: var(--bg-tertiary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.service-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-var(--space-1));
    box-shadow: var(--shadow-md);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: var(--space-5);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-tertiary);
}

/* CTA Section */
.cta {
    background-color: var(--color-primary);
    color: var(--bg-primary);
    text-align: center;
    padding: var(--space-12) 0;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: var(--space-5);
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: var(--space-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta .cta-button {
    background-color: var(--bg-primary);
    color: var(--color-primary);
}

.cta .cta-button:hover {
    background-color: var(--color-primary);
    color: var(--bg-primary);
}

/* ESTUDIOS SECTION */
.studies {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-25) 100%);
    padding: var(--space-10) 0;
    position: relative;
}

/* ========================================
   CONTENEDOR PRINCIPAL DE ESTUDIOS
   ======================================== */

.studies-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
    max-width: 1400px;
    margin: 0 auto;
}

/* ========================================
   BUSCADOR PRINCIPAL UNIFICADO
   ======================================== */

.unified-search-section {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-bottom: var(--space-5);
}

.unified-search-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.search-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.search-header h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.search-header h3 i {
    color: var(--color-primary);
    font-size: var(--text-lg);
}

.search-subtitle {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.6;
}

.search-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.search-input-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: var(--text-lg);
    z-index: 2;
}

.search-input {
    width: 100%;
    padding: var(--space-4) var(--space-16) var(--space-4) var(--space-16);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-primary);
    background-color: var(--bg-primary);
    font-size: var(--text-base);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xs);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm), 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-var(--space-1));
}

.search-input::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.search-clear-btn {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: 50%;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-clear-btn:hover {
    background: var(--color-error);
    color: var(--bg-primary);
    transform: translateY(-50%) scale(1.1);
}

.search-clear-btn.visible {
    opacity: 1;
    visibility: visible;
}

.search-controls {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    justify-content: space-between;
    flex-wrap: wrap;
}

.category-filter {
    flex: 0 0 auto;
    min-width: 280px;
}

.filter-dropdown {
    position: relative;
    width: 100%;
}

.filter-dropdown-btn {
    background: var(--bg-primary);
    border: 2px solid var(--border-primary);
    color: var(--text-primary);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: var(--text-base);
    font-weight: 500;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-xs);
}

.filter-dropdown-btn i:first-child {
    color: var(--color-primary);
    font-size: var(--text-lg);
    min-width: 20px;
}

.filter-dropdown-btn:hover {
    border-color: var(--color-primary);
    background: var(--bg-tertiary);
    color: var(--color-primary);
    transform: translateY(-var(--space-1));
    box-shadow: var(--shadow-sm);
}

.filter-dropdown-btn.active {
    border-color: var(--color-primary);
    background: var(--bg-tertiary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.dropdown-arrow {
    margin-left: auto;
    transition: transform var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-tertiary);
}

.filter-dropdown-btn.active .dropdown-arrow {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.filter-dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(-var(--space-1));
}

.filter-dropdown-menu.active {
    max-height: 400px;
    overflow-y: auto;
    opacity: 1;
    transform: translateY(0);
}

.dropdown-item {
    width: 100%;
    background: none;
    border: none;
    padding: var(--space-4) var(--space-5);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-base);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-secondary);
    position: relative;
}

.dropdown-item:last-child {
    border-bottom: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.dropdown-item:first-child {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: transparent;
    transition: all var(--transition-normal);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--color-primary);
    padding-left: calc(var(--space-5) + var(--space-2));
}

.dropdown-item:hover::before {
    background: var(--color-primary);
}

.dropdown-item.active {
    background: var(--bg-tertiary);
    color: var(--color-primary);
    font-weight: 600;
    padding-left: calc(var(--space-5) + var(--space-2));
}

.dropdown-item.active::before {
    background: linear-gradient(180deg, var(--color-primary), var(--primary-400));
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    color: var(--text-tertiary);
    transition: all var(--transition-normal);
    min-width: 20px;
}

.dropdown-item:hover i,
.dropdown-item.active i {
    color: var(--color-primary);
    transform: scale(1.1);
}

.results-info {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--text-tertiary);
    font-weight: 500;
    text-align: center;
    border: 1px solid var(--border-secondary);
    box-shadow: var(--shadow-xs);
    flex: 1;
    min-width: 200px;
}

.results-info span {
    color: var(--color-primary);
    font-weight: 600;
}

.search-help {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--text-xs);
    font-style: italic;
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
}

.search-help i {
    color: var(--color-warning);
}

/* ========================================
   RESPONSIVE DESIGN PARA SECCIÓN UNIFICADA
   ======================================== */

@media (max-width: 768px) {
    .unified-search-section {
        padding: var(--space-5);
        margin-bottom: var(--space-5);
    }
    
    .search-header h3 {
        font-size: var(--text-lg);
        flex-direction: column;
        gap: var(--space-1);
    }
    
    .search-subtitle {
        font-size: var(--text-xs);
    }
    
    .search-controls {
        flex-direction: column;
        gap: var(--space-4);
        align-items: stretch;
    }
    
    .category-filter {
        min-width: auto;
        width: 100%;
    }
    
    .results-info {
        min-width: auto;
        width: 100%;
    }
    
    .search-input {
        padding: var(--space-4) var(--space-8) var(--space-4) var(--space-10);
        font-size: var(--text-xs);
    }
    
    .search-icon {
        left: var(--space-2);
        font-size: var(--text-base);
    }
    
    .search-clear-btn {
        right: var(--space-2);
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 576px) {
    .unified-search-section {
        padding: var(--space-4);
        margin-bottom: var(--space-4);
    }
    
    .search-header h3 {
        font-size: var(--text-base);
    }
    
    .search-subtitle {
        font-size: var(--text-xs);
    }
    
    .search-input {
        padding: var(--space-2) var(--space-5) var(--space-2) var(--space-8);
        font-size: var(--text-xs);
    }
    
    .search-icon {
        left: var(--space-1);
        font-size: var(--text-xs);
    }
    
    .search-clear-btn {
        right: var(--space-1);
        width: 24px;
        height: 24px;
    }
    
    .filter-dropdown-btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }
    
    .dropdown-item {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }
    
    .results-info {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }
    
    .search-help {
        font-size: var(--text-xs);
    }
}

.search-results-section .study-card.expanded .expand-study-btn i {
    transform: rotate(180deg);
}

.search-results-section .study-sample-info strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ========================================
   INSTRUCCIONES DE ENTREGA DE MUESTRAS - DISEÑO OPTIMIZADO
   ======================================== */

.sample-instructions {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-50) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-16);
    margin: var(--space-16) 0;
    border: 2px solid var(--border-secondary);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.sample-instructions h3 {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--space-12);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    letter-spacing: -0.025em;
}

.sample-instructions h3 i {
    color: var(--color-primary);
    font-size: var(--text-lg);
}

.instructions-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-16);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: var(--space-3);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-xl);
    cursor: pointer;
    font-size: var(--text-lg);
    font-weight: 600;
    transition: all var(--transition-normal);
    flex: 1;
    max-width: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    position: relative;
}

.tab-btn i {
    font-size: var(--text-lg);
    transition: all var(--transition-normal);
}

.tab-btn[data-tab="sangre"] i {
    color: #e74c3c;
}

.tab-btn[data-tab="orina"] i {
    color: #f39c12;
}

.tab-btn[data-tab="heces"] i {
    color: #8b4513;
}

.tab-btn:hover {
    color: var(--color-primary);
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--primary-600) 100%);
    color: var(--bg-primary);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.tab-btn.active i {
    color: var(--bg-primary);
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

.tab-content {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    border: 2px solid var(--border-secondary);
    box-shadow: var(--shadow-md);
    position: relative;
}

.tab-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane h4 {
    font-size: var(--text-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-8);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--border-secondary);
}

.tab-pane h4 i {
    font-size: var(--text-base);
}

#sangre-tab h4 i {
    color: #e74c3c;
}

#orina-tab h4 i {
    color: #f39c12;
}

#heces-tab h4 i {
    color: #8b4513;
}

.tab-pane p {
    color: var(--text-tertiary);
    font-size: var(--text-base);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    padding: var(--space-5);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
    font-weight: 500;
}

.tab-pane ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.tab-pane li {
    background: var(--bg-primary);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    border: 1px solid var(--border-secondary);
    color: var(--text-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    font-weight: 500;
    box-shadow: var(--shadow-xs);
}

.tab-pane li i {
    color: var(--color-success);
    font-size: var(--text-xs);
    margin-top: 3px;
    flex-shrink: 0;
    background: var(--bg-tertiary);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   RESPONSIVE DESIGN PARA INSTRUCCIONES
   ======================================== */

@media (max-width: 768px) {
    .sample-instructions {
        padding: var(--space-8);
        margin: var(--space-8) 0;
    }
    
    .instructions-tabs {
        flex-direction: column;
        gap: var(--space-1);
    }
    
    .tab-btn {
        width: 100%;
        max-width: none;
        padding: var(--space-2);
    }
    
    .tab-content {
        padding: var(--space-5);
    }
    
    .tab-pane p {
        padding: var(--space-4);
    font-size: var(--text-xs);
}

    .tab-pane ul {
        gap: var(--space-4);
    }
    
    .tab-pane li {
        padding: var(--space-4);
        font-size: var(--text-xs);
        gap: var(--space-2);
    }
    
    .tab-pane li i {
        width: 18px;
        height: 18px;
        font-size: 10px;
    }
}

@media (max-width: 576px) {
    .sample-instructions {
        padding: var(--space-8);
        margin: var(--space-8) 0;
    }
    
    .sample-instructions h3 {
        font-size: var(--text-base);
        flex-direction: column;
        gap: var(--space-1);
        margin-bottom: var(--space-8);
    }
    
    .tab-btn {
        font-size: var(--text-xs);
    }
    
    .tab-content {
        padding: var(--space-4);
    }
    
    .tab-pane h4 {
        font-size: var(--text-base);
        margin-bottom: var(--space-5);
}

    .tab-pane p {
        font-size: var(--text-xs);
        padding: var(--space-2);
    }
    
    .tab-pane ul {
        gap: var(--space-2);
    }
    
    .tab-pane li {
        padding: var(--space-2);
        font-size: var(--text-xs);
    }
    
    .tab-pane li i {
        width: 16px;
        height: 16px;
        font-size: 8px;
    }
}

/* ========================================
   BRANCHES SECTION - SUCURSALES
   ======================================== */

.branches {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-50) 100%);
    position: relative;
}

.branches::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-primary), transparent);
}

.branches-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
}

.branch-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-secondary);
    transition: all var(--transition-normal);
    position: relative;
}

.branch-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
}

.branch-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.branch-info {
    padding: var(--space-12);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.branch-name {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-6);
    color: var(--color-primary);
    font-weight: 700;
    position: relative;
}

.branch-name::after {
    content: '';
    position: absolute;
    bottom: -var(--space-3);
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-full);
}

.branch-address,
.branch-phone,
.branch-hours,
.branch-email {
    display: flex;
    align-items: flex-start;
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-fast);
}

.branch-address:hover,
.branch-phone:hover,
.branch-hours:hover,
.branch-email:hover {
    background: var(--primary-50);
    transform: translateX(4px);
}

.branch-address i,
.branch-phone i,
.branch-hours i,
.branch-email i {
    color: var(--color-primary);
    min-width: 20px;
    font-size: var(--text-lg);
    margin-top: 2px;
    flex-shrink: 0;
}

.branch-map-container {
    position: relative;
    min-height: 400px;
    border-radius: 0 var(--radius-2xl) var(--radius-2xl) 0;
    overflow: hidden;
}

.branch-map {
    width: 100%;
    height: 100%;
    min-height: 400px;
    z-index: 1;
}

/* ========================================
   CONTACT SECTION - CONTACTO
   ======================================== */

.contact {
    background-color: var(--bg-primary);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-primary), transparent);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto var(--space-12) auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-50) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-secondary);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--color-primary), var(--primary-400));
}

.contact-item:hover {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-item i {
    font-size: var(--text-2xl);
    color: var(--color-primary);
    margin-top: var(--space-1);
    min-width: 48px;
    text-align: center;
    background: var(--bg-primary);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.contact-item h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
    font-weight: 600;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    margin: 0;
}

.contact-item p + p {
    margin-top: var(--space-1);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.social-media-section {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-10);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--primary-600) 100%);
    border-radius: var(--radius-2xl);
    color: var(--bg-primary);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.social-media-section h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-8);
    font-weight: 700;
    letter-spacing: -0.025em;
}

.social-icons {
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    flex-wrap: wrap;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--bg-primary);
    border-radius: var(--radius-full);
    color: var(--color-primary);
    transition: all var(--transition-normal);
    text-decoration: none;
    font-size: var(--text-xl);
    box-shadow: var(--shadow-md);
}

.social-icons a:hover {
    background-color: var(--primary-100);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--bg-primary);
    padding: var(--space-12) 0 var(--space-6);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
}

.footer::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    transform: rotate(45deg);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-12);
    position: relative;
    z-index: 2;
}

.footer-logo {
    margin-bottom: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
}

.footer-logo-image {
    height: 65px;
    width: auto;
    object-fit: contain;
    filter: brightness(1.1);
    transition: all var(--transition-fast);
}

.footer-logo .logo-text {
    font-size: var(--text-3xl);
    color: var(--bg-primary);
    margin-bottom: 0;
    display: block;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.footer-logo p {
    color: var(--gray-300);
    font-size: var(--text-base);
    line-height: 1.6;
}

.footer h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-3);
    font-weight: 600;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-300));
    border-radius: var(--radius-full);
}

.footer-links ul,
.footer-services ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-links a {
    color: var(--gray-300);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    text-decoration: none;
    padding: var(--space-1) 0;
    display: inline-block;
}

.footer-services li {
    color: var(--gray-300);
    font-size: var(--text-base);
    padding: var(--space-1) 0;
}

.footer-links a:hover {
    color: var(--primary-300);
    transform: translateX(5px);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    color: var(--gray-300);
    font-size: var(--text-base);
    padding: var(--space-2) 0;
}

.footer-contact i {
    color: var(--primary-400);
    min-width: 20px;
    text-align: center;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-400);
    font-size: var(--text-sm);
    gap: var(--space-4);
    position: relative;
    z-index: 2;
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: var(--text-sm);
}

.footer-legal a:hover {
    color: var(--primary-300);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    .branch-card {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .branch-map-container {
        min-height: 300px;
        border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
    }
    
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}

@media (max-width: 768px) {
    .branches-container {
        gap: var(--space-8);
    }
    
    .branch-info {
        padding: var(--space-8);
        gap: var(--space-4);
    }
    
    .branch-name {
        font-size: var(--text-xl);
        margin-bottom: var(--space-4);
    }
    
    .contact-info {
        gap: var(--space-6);
    }
    
    .contact-item {
        padding: var(--space-6);
        gap: var(--space-4);
    }
    
    .contact-item i {
        font-size: var(--text-xl);
        width: 40px;
        height: 40px;
    }
    
    .social-media-section {
        padding: var(--space-8);
        margin: 0 var(--space-4);
    }
    
    .social-icons a {
        width: 45px;
        height: 45px;
        font-size: var(--text-base);
    }
    
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--space-8);
    }
    
    .footer-logo-image {
        height: 50px;
    }
    
    .footer-logo .logo-text {
        font-size: var(--text-2xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--space-3);
    }
}

@media (max-width: 480px) {
    .branch-info {
        padding: var(--space-6);
    }
    
    .branch-address,
    .branch-phone,
    .branch-hours,
    .branch-email {
        font-size: var(--text-sm);
        padding: var(--space-2);
    }
    
    .contact-item {
        padding: var(--space-4);
        flex-direction: column;
        text-align: center;
    }
    
    .contact-item i {
        align-self: center;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .social-icons {
        gap: var(--space-3);
    }
    
    .social-icons a {
        width: 50px;
        height: 50px;
        font-size: var(--text-base);
    }
    
    .social-media-section {
        padding: var(--space-6);
        margin: 0;
    }
    
    .social-media-section h3 {
        font-size: var(--text-lg);
        margin-bottom: var(--space-6);
    }
    
    .footer {
        padding: var(--space-10) 0 var(--space-4);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        text-align: center;
    }
    
    .footer-logo-image {
        height: 42px;
        align-self: center;
    }
    
    .footer-logo .logo-text {
        font-size: var(--text-xl);
    }
}

/* ========================================
   SISTEMA DE ESTUDIOS - LAYOUT DE DOS COLUMNAS
   ======================================== */

.studies-main-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-8);
    align-items: start;
    margin-bottom: var(--space-12);
}

.studies-left-column {
    min-height: 600px;
}

.studies-right-column {
    position: sticky;
    top: calc(var(--space-20) + 80px); /* Ajustar por header sticky */
    max-height: 80vh;
    overflow-y: auto;
}

/* ========================================
   CARRITO LATERAL MEJORADO
   ======================================== */

.study-cart-sidebar {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-2xl);
    border: 2px solid var(--border-primary);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
}

.study-cart-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
}

.cart-header-sidebar {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--primary-600) 100%);
    color: var(--bg-primary);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.cart-header-sidebar h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.cart-header-sidebar h3 i {
    font-size: var(--text-base);
    opacity: 0.9;
}

.cart-count-badge {
    background: var(--bg-primary);
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 700;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    min-width: 28px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.cart-content-sidebar {
    display: flex;
    flex-direction: column;
    height: auto; /* Cambiar de altura fija a auto */
    min-height: 400px; /* Altura mínima */
    max-height: 70vh; /* Altura máxima más generosa */
    padding: var(--space-6);
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    flex: 1;
    overflow-y: auto;
    height: auto; /* Cambiar de max-height fija a auto */
    max-height: calc(100% - 180px); /* Espacio más generoso para el resumen */
    margin-bottom: var(--space-6);
    padding-right: var(--space-2);
    
    /* Scrollbar personalizado para la lista de estudios */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) transparent;
    
    /* Prevenir que el scroll se escape a la página principal */
    overscroll-behavior: contain;
}

.cart-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-3);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    flex-shrink: 0; /* Prevenir compresión */
    min-height: 80px; /* Altura mínima para cada elemento */
}

.cart-items::-webkit-scrollbar {
    width: 6px;
}

.cart-items::-webkit-scrollbar-track {
    background: transparent;
}

.cart-items::-webkit-scrollbar-thumb {
    background: var(--primary-300);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.cart-items::-webkit-scrollbar-thumb:hover {
    background: var(--primary-400);
}

.cart-summary {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--primary-50) 100%);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
    flex-shrink: 0; /* Evitar que se comprima */
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
    font-size: var(--text-base);
    color: var(--text-secondary);
}

.summary-row:last-child {
    margin-bottom: 0;
}

.summary-row.total {
    border-top: 2px solid var(--color-primary);
    padding-top: var(--space-3);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-primary);
}

.cart-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    flex-shrink: 0; /* Evitar que se comprima */
}

.clear-cart-btn,
.print-list-btn {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    cursor: pointer;
    text-decoration: none;
    border: none;
}

.clear-cart-btn {
    background: var(--bg-muted);
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
}

.clear-cart-btn:hover {
    background: var(--color-error);
    color: var(--bg-primary);
    border-color: var(--color-error);
    transform: translateY(-1px);
}

.print-list-btn {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

.print-list-btn:hover {
    background: var(--primary-100);
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.contact-btn {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--success-600) 100%);
    color: var(--bg-primary);
    border: 1px solid var(--color-success);
}

.contact-btn:hover {
    background: linear-gradient(135deg, var(--success-600) 0%, var(--success-700) 100%);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   TARJETAS DE ESTUDIOS EN LA LISTA
   ======================================== */

.study-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    height: auto; /* Cambiar de max-height a height auto */
    max-height: 80vh; /* Altura máxima más conservadora */
    overflow-y: auto;
    overflow-x: hidden; /* Prevenir scroll horizontal */
    padding-right: var(--space-2); /* Espacio para el scrollbar */
    position: relative;
    width: 100%; /* Asegurar ancho completo */
    
    /* Scrollbar personalizado para Webkit browsers (Chrome, Safari, Edge) */
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) var(--bg-tertiary);
    
    /* Prevenir que el scroll se escape a la página principal */
    overscroll-behavior: contain;
}

/* Asegurar que las tarjetas mantengan su tamaño mínimo */
.study-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0; /* Prevenir que se compriman */
    min-height: 140px; /* Altura mínima más generosa */
    width: 100%; /* Asegurar ancho completo */
}

.study-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-200);
}

.study-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--primary-600) 100%);
    color: var(--bg-primary);
    padding: var(--space-5);
    position: relative;
    min-height: 140px; /* Altura mínima consistente para el header */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.study-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

/* Estilos del scrollbar personalizado */
.study-list::-webkit-scrollbar {
    width: 8px;
}

.study-list::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    margin: var(--space-2) 0;
}

.study-list::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-400), var(--primary-500));
    border-radius: var(--radius-full);
    border: 1px solid var(--primary-200);
    transition: all var(--transition-normal);
}

.study-list::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-500), var(--primary-600));
    transform: scaleX(1.2);
    box-shadow: var(--shadow-sm);
}

.study-list::-webkit-scrollbar-thumb:active {
    background: linear-gradient(180deg, var(--primary-600), var(--primary-700));
}

.study-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin: 0;
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.study-quick-info {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-4);
}

.study-price {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: var(--text-base);
    backdrop-filter: blur(10px);
}

.study-sample-type,
.study-time {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    backdrop-filter: blur(5px);
}

.study-actions {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

.add-to-cart-btn {
    background: rgba(255, 255, 255, 0.2);
    color: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    backdrop-filter: blur(10px);
}

.add-to-cart-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.add-to-cart-btn.added {
    background: var(--color-success);
    border-color: var(--color-success);
    cursor: not-allowed;
}

.expand-study-btn {
    background: none;
    border: none;
    color: var(--bg-primary);
    font-size: var(--text-lg);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.expand-study-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.study-details {
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-slow);
    background: var(--bg-tertiary);
}

.study-card.expanded .study-details {
    max-height: 600px;
    padding: var(--space-6);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) var(--bg-tertiary);
}

/* Scrollbar personalizado para tarjetas expandidas */
.study-card.expanded .study-details::-webkit-scrollbar {
    width: 6px;
}

.study-card.expanded .study-details::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    margin: var(--space-1) 0;
}

.study-card.expanded .study-details::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-300), var(--primary-400));
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.study-card.expanded .study-details::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-400), var(--primary-500));
}

.study-card.expanded .expand-study-btn i {
    transform: rotate(180deg);
}

.study-purpose,
.study-preparation,
.study-sample-info,
.included-studies {
    margin-bottom: var(--space-5);
}

.study-purpose h4,
.study-preparation h4,
.study-sample-info h4,
.included-studies h4 {
    color: var(--color-primary);
    margin-bottom: var(--space-3);
    font-size: var(--text-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.study-purpose h4 i,
.study-preparation h4 i,
.study-sample-info h4 i,
.included-studies h4 i {
    color: var(--primary-400);
}

.study-purpose p {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    background: var(--bg-primary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-primary);
}

.study-preparation ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.study-preparation li {
    background: var(--bg-primary);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border: 1px solid var(--border-secondary);
    transition: all var(--transition-fast);
}

.study-preparation li:hover {
    background: var(--primary-50);
    border-color: var(--primary-200);
    transform: translateX(4px);
}

.study-preparation li i {
    color: var(--color-success);
    font-size: var(--text-sm);
    background: var(--success-50);
    width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.study-sample-info p {
    background: var(--bg-primary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--primary-400);
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
}

/* ========================================
   ESTILOS PARA ESTUDIOS INCLUIDOS EN PAQUETES
   ======================================== */

.included-studies {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-200);
    position: relative;
}

.included-studies::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--primary-400));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-2);
    margin-top: var(--space-3);
    max-height: 300px;
    overflow-y: auto;
    padding-right: var(--space-1);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) var(--bg-tertiary);
}

/* Scrollbar para grid de estudios incluidos */
.studies-grid::-webkit-scrollbar {
    width: 4px;
}

.studies-grid::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

.studies-grid::-webkit-scrollbar-thumb {
    background: var(--primary-300);
    border-radius: var(--radius-full);
}

.studies-grid::-webkit-scrollbar-thumb:hover {
    background: var(--primary-400);
}

.included-study-item {
    background: var(--bg-primary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-300);
    color: var(--text-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.included-study-item:hover {
    background: var(--primary-50);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.included-study-item i {
    color: var(--color-success);
    font-size: var(--text-xs);
    width: 14px;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.study-sample-info strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Mensaje de no resultados */
.no-results-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-20) var(--space-6);
    text-align: center;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    border: 2px dashed var(--border-primary);
    margin-top: var(--space-6);
}

.no-results-message i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--space-6);
    opacity: 0.6;
}

.no-results-message h3 {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
    font-weight: 600;
}

.no-results-message p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    max-width: 400px;
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .study-list {
        max-height: 75vh;
        padding-right: var(--space-1);
    }
    
    .study-list::-webkit-scrollbar {
        width: 6px;
    }
}

@media (max-width: 768px) {
    .study-list {
        max-height: 70vh;
        padding-right: var(--space-1);
        gap: var(--space-3);
    }
    
    .study-list::-webkit-scrollbar {
        width: 5px;
    }
    
    .study-list::-webkit-scrollbar-thumb {
        background: var(--primary-400);
        border: none;
    }
    
    .study-list::-webkit-scrollbar-thumb:hover {
        transform: none; /* Desactivar escala en móviles */
        background: var(--primary-500);
    }
}

@media (max-width: 480px) {
    .study-list {
        max-height: 65vh;
        margin: 0 calc(-1 * var(--space-1));
        padding-right: var(--space-2);
        gap: var(--space-2);
    }
    
    .study-list::-webkit-scrollbar {
        width: 4px;
    }
    
    .study-list::-webkit-scrollbar-track {
        margin: var(--space-1) 0;
    }
    
    .study-card {
        min-height: 100px; /* Altura mínima menor en móviles */
    }
}

.search-results-section {
    margin-top: var(--space-6);
    /* Eliminar altura mínima que puede causar problemas */
}

.empty-cart {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    color: var(--text-tertiary);
}

.empty-cart i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    opacity: 0.6;
}

.empty-cart p {
    font-size: var(--text-base);
    font-weight: 500;
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

.empty-cart small {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-style: italic;
}

.cart-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-3);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    flex-shrink: 0; /* Prevenir compresión */
    min-height: 80px; /* Altura mínima para cada elemento */
}

.cart-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--color-primary), var(--primary-400));
}

.cart-item:hover {
    background: var(--primary-50);
    transform: translateX(2px);
    box-shadow: var(--shadow-sm);
}

.cart-item-info {
    flex: 1;
    min-width: 0;
}

.cart-item-info h4 {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    line-height: 1.4;
}

.cart-item-details {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.cart-item-price {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
    align-self: flex-start;
    background: var(--primary-50);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
}

.remove-item-btn {
    background: var(--color-error);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-full);
    width: 24px;
    height: 24px;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    margin-left: var(--space-2);
    align-self: flex-start;
}

.remove-item-btn:hover {
    background: var(--error-600);
    transform: scale(1.1);
    box-shadow: var(--shadow-sm);
}

/* ========================================
   RESPONSIVE DESIGN PARA CARRITO LATERAL
   ======================================== */

@media (max-width: 1024px) {
    .studies-main-layout {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .studies-right-column {
        position: static;
        max-height: none;
        order: 2;
    }
    
    .cart-content-sidebar {
        height: auto;
        max-height: 500px; /* Aumentar altura */
    }
    
    .cart-items {
        max-height: 250px; /* Aumentar altura para los items */
    }
}

@media (max-width: 768px) {
    .cart-content-sidebar {
        padding: var(--space-4);
        max-height: 450px; /* Aumentar altura */
    }
    
    .cart-items {
        max-height: 200px; /* Aumentar altura para los items */
        padding-right: var(--space-1);
    }
    
    .cart-items::-webkit-scrollbar {
        width: 4px;
    }
    
    .cart-item {
        padding: var(--space-3);
        min-height: 70px; /* Altura mínima menor en tablet */
    }
    
    .cart-summary {
        padding: var(--space-4);
    }
}

@media (max-width: 480px) {
    .cart-header-sidebar {
        padding: var(--space-4);
    }
    
    .cart-content-sidebar {
        padding: var(--space-3);
        max-height: 350px; /* Altura más generosa */
    }
    
    .cart-items {
        max-height: 150px; /* Altura más generosa */
    }
    
    .cart-item {
        padding: var(--space-2);
        gap: var(--space-2);
        min-height: 60px; /* Altura mínima para móvil */
    }
    
    .cart-item-info h4 {
        font-size: var(--text-sm);
    }
    
    .cart-item-price {
        font-size: var(--text-sm);
        padding: var(--space-1);
    }
    
    .remove-item-btn {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }
}

/* ========================================
   PREVENIR SCROLL ESCAPE EN TODAS LAS ÁREAS CON SCROLLBAR PERSONALIZADO
   ======================================== */

/* Aplicar a todos los elementos con scroll personalizado para evitar escape */
.study-list,
.cart-items,
.cart-content-sidebar {
    overscroll-behavior: contain;
}

/* ========================================
   RESPONSIVE DESIGN PARA DESCRIPCIONES DE ESTUDIOS
   ======================================== */

@media (max-width: 1024px) {
    .study-card.expanded .study-details {
        max-height: 700px; /* Aumentar altura en tablets */
        padding: var(--space-5);
        overflow-y: auto;
    }
    
    .study-purpose h4,
    .study-preparation h4,
    .study-sample-info h4 {
        font-size: var(--text-base);
    }
    
    .study-purpose p,
    .study-sample-info p {
        font-size: var(--text-sm);
        padding: var(--space-3);
    }
    
    .study-preparation li {
        padding: var(--space-2);
        font-size: var(--text-sm);
    }
}

@media (max-width: 768px) {
    .study-card.expanded .study-details {
        max-height: 800px; /* Aumentar altura en móviles */
        padding: var(--space-4);
        overflow-y: auto;
    }
    
    .study-purpose,
    .study-preparation,
    .study-sample-info,
    .included-studies {
        margin-bottom: var(--space-4);
    }
    
    .study-purpose h4,
    .study-preparation h4,
    .study-sample-info h4,
    .included-studies h4 {
        font-size: var(--text-base);
        margin-bottom: var(--space-2);
    }
    
    .study-purpose p,
    .study-sample-info p {
        font-size: var(--text-sm);
        line-height: 1.5;
        padding: var(--space-3);
    }
    
    .study-preparation li {
        padding: var(--space-2);
        font-size: var(--text-sm);
        gap: var(--space-2);
    }
    
    .study-preparation li i {
        width: 18px;
        height: 18px;
        font-size: var(--text-xs);
    }
    
    .studies-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: var(--space-2);
        max-height: 250px;
    }
    
    .included-study-item {
        padding: var(--space-2);
        font-size: var(--text-xs);
    }
}

@media (max-width: 480px) {
    .study-card.expanded .study-details {
        max-height: 900px; /* Altura máxima generosa para móviles pequeños */
        padding: var(--space-3);
        overflow-y: auto; /* Permitir scroll si es necesario */
        
        /* Scrollbar para la descripción en móviles */
        scrollbar-width: thin;
        scrollbar-color: var(--primary-300) transparent;
    }
    
    .study-card.expanded .study-details::-webkit-scrollbar {
        width: 4px;
    }
    
    .study-card.expanded .study-details::-webkit-scrollbar-track {
        background: transparent;
    }
    
    .study-card.expanded .study-details::-webkit-scrollbar-thumb {
        background: var(--primary-300);
        border-radius: var(--radius-full);
    }
    
    .study-purpose,
    .study-preparation,
    .study-sample-info {
        margin-bottom: var(--space-3);
    }
    
    .study-purpose h4,
    .study-preparation h4,
    .study-sample-info h4 {
        font-size: var(--text-sm);
        margin-bottom: var(--space-2);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
    }
    
    .study-purpose p,
    .study-sample-info p {
        font-size: var(--text-xs);
        line-height: 1.4;
        padding: var(--space-2);
    }
    
    .study-preparation ul {
        gap: var(--space-1);
    }
    
    .study-preparation li {
        padding: var(--space-2);
        font-size: var(--text-xs);
        gap: var(--space-2);
        line-height: 1.3;
    }
    
    .study-preparation li i {
        width: 16px;
        height: 16px;
        font-size: 8px;
    }
    
    .studies-grid {
        grid-template-columns: 1fr;
        gap: var(--space-1);
        max-height: 200px;
    }
    
    .included-study-item {
        padding: var(--space-1) var(--space-2);
        font-size: 10px;
    }
    
    .included-study-item i {
        width: 12px;
        height: 12px;
    }
}

.price {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.price-from {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-value {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.tests-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.tests-count {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.tests-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    font-weight: 500;
    max-width: 120px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--primary-600));
    color: var(--bg-primary);
    padding: var(--space-5) var(--space-10);
    border-radius: var(--radius-2xl);
    font-weight: 700;
    font-size: var(--text-xl);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary-400);
    gap: var(--space-3);
    width: fit-content;
    position: relative;
    overflow: hidden;
}

.cta-button:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: var(--bg-primary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.cta-button:active {
    transform: translateY(-1px) scale(1.01);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 480px) {
    .logo-image {
        height: 38px;
    }
    
    .logo-text {
        font-size: var(--text-base);
    }

    .branch-info {
        padding: var(--space-6);
    }
    
    .branch-address,
    .branch-phone,
    .branch-hours,
    .branch-email {
        font-size: var(--text-sm);
        padding: var(--space-2);
    }
}