/* ===================================
   Signatera Landing Page - Styles
   REBRANDED VERSION - NATERA ALIGNED
   =================================== */

/* Animation Property for Donut Chart */
@property --accuracy-pct {
    syntax: '<percentage>';
    inherits: false;
    initial-value: 0%;
}

/* Import Google Fonts */
/* Import Google Fonts - Moved to HTML for performance */

:root {
    /* ===================================
       COLOR PALETTE
       =================================== */

    /* Primary Natera Palette */
    --color-natera-navy: #1D252D;
    --color-natera-blue: #004677;
    --color-natera-teal: #0082A1;
    --color-natera-green: #89C441;
    --color-natera-gold: #F8B133;

    /* Footer Specific */
    --color-footer-bg: #0B2138;
    --color-footer-text: rgba(255, 255, 255, 0.7);
    --color-footer-border: rgba(255, 255, 255, 0.1);

    /* Neutral / UI Colors */
    --color-bg-main: #FFFFFF;
    --color-bg-alt: #F8F9FA;
    --color-bg-blue: #EEF4FA;
    --color-bg-dark: #0B2138;

    --color-text-primary: #1D252D;
    --color-text-secondary: #4A5568;
    --color-text-muted: #718096;
    --color-text-light: rgba(255, 255, 255, 0.9);

    --color-white: #FFFFFF;
    --color-border: #E2E8F0;

    /* Semantic Colors */
    --color-success: #89C441;
    --color-warning: #F8B133;
    --color-error: #E53E3E;
    --color-info: #0082A1;

    /* Donut Chart Animation Variable */
    --accuracy-pct: 0%;

    /* ===================================
       TYPOGRAPHY
       =================================== */

    /* Font Families */
    --font-heading: 'Roboto Flex', sans-serif;
    --font-body: 'Roboto', sans-serif;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* ===================================
       SPACING
       =================================== */

    --spacing-xs: 0.5rem;
    /* 8px */
    --spacing-sm: 0.75rem;
    /* 12px */
    --spacing-md: 1rem;
    /* 16px */
    --spacing-lg: 1.5rem;
    /* 24px */
    --spacing-xl: 2rem;
    /* 32px */
    --spacing-2xl: 3rem;
    /* 48px */

    --section-padding: 80px 0;
    --container-max-width: 1200px;

    /* ===================================
       UI ELEMENTS
       =================================== */

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-full: 50%;

    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);

    /* ===================================
       TRANSITIONS
       =================================== */

    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* ===================================
       Z-INDEX LAYERS
       =================================== */

    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 500;
    --z-fab: 1000;
}

/* Global Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-main);
    overflow-x: hidden;
}

/* ===================================
   Accessibility - Skip Link
   =================================== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-natera-teal);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
sup {
    font-size: 0.6em;
    top: -0.7em;
    margin-left: 2px;
}

.tm-hero {
    font-size: 0.35em;
    /* Smaller size exclusively for the Hero title */
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    color: var(--color-natera-navy);
    line-height: 1.2;
    font-weight: 400;
    /* Cleaner look preferred by Natera */
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.75rem;
}

/* DNA Watermark Pattern Helper */
.bg-watermark {
    position: relative;
    overflow: hidden;
}

.bg-watermark::after {
    content: 'A T C G G C T A T C G';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-15deg);
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 20rem;
    color: rgba(0, 130, 161, 0.03);
    /* Extremely subtle teal */
    white-space: nowrap;
    pointer-events: none;
    z-index: -1;
}

/* ===================================
   Navigation
   =================================== */
.header {
    position: sticky;
    top: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: 10px 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.logo-genoma {
    height: 42px;
    width: auto;
    display: block;
}

.logo-natera {
    height: 34px;
    width: auto;
    display: block;
}

.logo-divider {
    width: 1px;
    height: 36px;
    background-color: var(--color-border);
    margin: 0 5px;
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-natera-teal);
    border-bottom-color: var(--color-natera-teal);
}

.nav-link--cta {
    background-color: var(--color-natera-teal);
    color: white !important;
    padding: 10px 24px !important;
    border-radius: 50px;
    border: none !important;
}

.nav-link--cta:hover {
    background-color: #00708a;
}

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-natera-navy);
    transition: all 0.3s ease;
}

/* ===================================
   Focus Styles for Accessibility
   =================================== */

/* Better focus outline for all interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--color-natera-teal);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Navigation links focus */
.nav-link:focus-visible {
    outline: 2px solid var(--color-natera-teal);
    outline-offset: 4px;
}

/* Float buttons focus */
.float-btn:focus-visible {
    outline: 3px solid var(--color-natera-gold);
    outline-offset: 3px;
}

/* Skip link focus - already styled */
.skip-link:focus-visible {
    outline: 3px solid white;
    outline-offset: -3px;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding: 60px 0 30px 0;
    /* Reduced bottom padding further */
    background: linear-gradient(135deg, #FFFFFF 0%, #F0F7FB 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-badge {
    color: var(--color-natera-teal);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    font-size: 0.85rem;
    margin-bottom: 16px;
    display: block;
}

.hero-title {
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.brand-highlight {
    color: var(--color-natera-teal);
    font-weight: 700;
    display: inline-block;
    position: relative;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 650px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat h3 {
    color: var(--color-natera-teal);
    font-size: 2.5rem;
    font-weight: 300;
}

.stat p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.hero-visual {
    position: relative;
}

.hero-visual img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.hero-rep-info {
    grid-column: 1 / -1;
    text-align: center;
    padding: 24px 30px;
    margin-top: 30px;
    border-top: 1px solid rgba(0, 130, 161, 0.15);
    background: linear-gradient(90deg, transparent, rgba(0, 130, 161, 0.03), transparent);
    border-radius: var(--radius-md);
}

.hero-rep-info p {
    font-size: 1.05rem;
    color: var(--color-natera-navy);
    font-weight: 500;
    letter-spacing: 0.3px;
    margin: 0;
}

.hero-rep-info .signatera-name {
    font-weight: 700;
    color: var(--color-natera-teal);
    text-transform: none;
}

/* ===================================
   Section Components
   =================================== */
.section {
    padding: var(--section-padding);
}

.section-what {
    padding-top: 40px;
    /* Reduced top padding to move it closer to hero */
}

.section-header {
    margin-bottom: 48px;
    max-width: 800px;
}

/* The Green Underline Accent */
.section-title {
    position: relative;
    padding-bottom: 20px;
    margin-bottom: 24px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-natera-green);
}

.section-badge {
    color: var(--color-natera-teal);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    margin-bottom: 12px;
    display: block;
}

/* ===================================
   What is Signatera Intro Section
   =================================== */
.section-intro {
    background-color: var(--color-bg-main);
    padding-top: 40px;
    padding-bottom: 50px;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    border-color: var(--color-natera-teal);
    box-shadow: var(--shadow-soft);
    transform: translateY(-3px);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
    background: linear-gradient(135deg, var(--color-natera-teal) 0%, var(--color-natera-blue) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.benefit-content h4 {
    color: var(--color-natera-navy);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.benefit-content p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Responsive for Benefit Grid */
@media (max-width: 768px) {
    .benefit-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   MRD Testing Section
   =================================== */
.section-mrd {
    background: linear-gradient(180deg, var(--color-bg-main) 0%, var(--color-bg-blue) 100%);
    padding-top: 40px;
}

.mrd-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.mrd-card {
    padding: 40px;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.mrd-card--primary {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.mrd-card--secondary {
    background: linear-gradient(135deg, var(--color-natera-navy) 0%, var(--color-natera-blue) 100%);
    color: white;
}

.mrd-card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.mrd-card--primary .mrd-card-icon {
    background: var(--color-bg-blue);
    color: var(--color-natera-teal);
}

.mrd-card--secondary .mrd-card-icon {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-natera-green);
}

.mrd-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.mrd-card--primary h3 {
    color: var(--color-natera-navy);
}

.mrd-card--secondary h3 {
    color: var(--color-white);
}

.mrd-card p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.mrd-card--primary p {
    color: var(--color-text-secondary);
}

.mrd-card--secondary p {
    color: rgba(255, 255, 255, 0.85);
}

.mrd-card p:last-child {
    margin-bottom: 0;
}

.mrd-card strong {
    font-weight: 600;
}

.mrd-card--primary strong {
    color: var(--color-natera-navy);
}

.mrd-card--secondary strong {
    color: var(--color-natera-green);
}

.mrd-highlight {
    padding: 16px 20px;
    background: var(--color-bg-blue);
    border-left: 4px solid var(--color-natera-teal);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: 500;
    color: var(--color-natera-navy) !important;
}

/* Responsive for MRD Section */
@media (max-width: 968px) {
    .mrd-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   What is ctDNA
   =================================== */
.section-what {
    background-color: var(--color-bg-alt);
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    will-change: transform;
    display: flex;
    flex-direction: column;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.info-card-image {
    width: 100%;
    margin-bottom: 24px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--color-bg-alt);
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.info-card:hover .info-card-image img {
    transform: scale(1.05);
}

.info-card h3 {
    margin-bottom: 16px;
    font-weight: 500;
    font-size: 1.5rem;
}

.info-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   Tabs Section
   =================================== */
.tabs-container {
    margin-top: 60px;
}

.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 40px;
}

.tab-btn {
    padding: 16px 32px;
    border: none;
    background: none;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--color-natera-teal);
    border-bottom-color: var(--color-natera-teal);
}

/* ===================================
   Cancer Types Grid
   =================================== */
.cancer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.cancer-card {
    padding: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.cancer-card:hover {
    border-color: var(--color-natera-teal);
    background-color: var(--color-bg-blue);
}

.cancer-card h4 {
    margin-bottom: 12px;
    color: var(--color-natera-blue);
}

/* ===================================
   Enhanced Indications Section
   =================================== */
.indicaciones-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
    padding: 30px;
    background: linear-gradient(135deg, var(--color-natera-teal) 0%, var(--color-natera-blue) 100%);
    border-radius: var(--radius-lg);
}

.indicaciones-stat-item {
    text-align: center;
    color: white;
}

.indicaciones-stat-item .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 8px;
}

.indicaciones-stat-item .stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.cancer-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.cancer-card-enhanced {
    background: white;
    padding: 28px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.cancer-card-enhanced:hover {
    border-color: var(--color-natera-teal);
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.cancer-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.cancer-card-enhanced .cancer-icon-box {
    width: 60px;
    height: 60px;
    background: var(--color-bg-blue);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.cancer-card-enhanced:hover .cancer-icon-box {
    background: white;
    box-shadow: var(--shadow-soft);
}

.cancer-icon-box .custom-icon {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.cancer-card-enhanced:hover .cancer-icon-box .custom-icon {
    transform: scale(1.1);
}

.cancer-badge {
    background: var(--color-natera-green);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cancer-card-enhanced h4 {
    color: var(--color-natera-navy);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.cancer-stages {
    color: var(--color-natera-teal);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px !important;
}

.cancer-card-enhanced p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.cancer-card-enhanced p strong {
    color: var(--color-natera-navy);
}

.indicaciones-note {
    margin-top: 40px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px 24px;
    background: var(--color-bg-blue);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-natera-teal);
}

.indicaciones-note i {
    color: var(--color-natera-teal);
    font-size: 1.2rem;
    margin-top: 2px;
}

.indicaciones-note p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* Responsive for Enhanced Indications */
@media (max-width: 1024px) {
    .indicaciones-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .cancer-grid-enhanced {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .indicaciones-stats {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        padding: 20px;
    }

    .indicaciones-stat-item .stat-number {
        font-size: 1.8rem;
    }

    .cancer-grid-enhanced {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   When to Use Signatera Section
   =================================== */
.section-cuando {
    background-color: var(--color-bg-dark);
    position: relative;
    overflow: hidden;
}

.section-cuando::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 130, 161, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(137, 196, 65, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

/* Light text variants for dark sections */
.section-header.light .section-badge {
    color: var(--color-natera-green);
}

.section-header.light .section-title {
    color: var(--color-white);
}

.section-header.light .section-title::after {
    background-color: var(--color-natera-green);
}

.section-header.light .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.cuando-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.cuando-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    transition: all var(--transition-base);
}

.cuando-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-natera-teal);
    transform: translateY(-5px);
}

.cuando-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-natera-teal) 0%, var(--color-natera-blue) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 1.5rem;
    color: white;
    transition: transform var(--transition-base);
}

.cuando-card:hover .cuando-icon {
    transform: scale(1.1);
}

.cuando-card h3 {
    color: var(--color-white);
    font-size: 1.3rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.cuando-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    line-height: 1.6;
}

.cuando-footer {
    margin-top: 50px;
    text-align: center;
    padding: 24px 30px;
    background: rgba(137, 196, 65, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(137, 196, 65, 0.2);
    position: relative;
    z-index: 1;
}

.cuando-footer p {
    color: var(--color-white);
    font-size: 1.1rem;
    margin: 0;
}

.cuando-footer i {
    color: var(--color-natera-green);
    margin-right: 10px;
}

.cuando-footer strong {
    color: var(--color-natera-green);
}

/* Responsive for Cuando Section */
@media (max-width: 968px) {
    .cuando-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ===================================
   Forms & Contact Rebranded
   =================================== */
.section-contact {
    background-color: var(--color-bg-alt);
    /* Light gray background */
    padding: var(--section-padding);
}

.center {
    text-align: center;
}

.center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Contact Methods Grid */
.contact-methods-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.contact-method-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 15px;
    padding: 40px 24px;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.contact-method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-natera-navy);
    transition: height 0.3s ease;
}

.contact-method-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.contact-method-card:hover::before {
    height: 6px;
}

/* Color Modifiers for Cards */
.contact-method-card.bg-green::before {
    background: var(--color-natera-green);
}

.contact-method-card.bg-navy::before {
    background: var(--color-natera-navy);
}

.contact-method-card.bg-teal::before {
    background: var(--color-natera-teal);
}

.method-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-bg-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    transition: background 0.3s ease;
}

.method-icon img {
    width: 30px;
    height: 30px;
    transition: filter 0.3s ease;
}

.contact-method-card.bg-green .method-icon img {
    filter: none;
    /* Original WhatsApp Colors */
}

.contact-method-card.bg-navy .method-icon img {
    filter: opacity(0.7);
    /* Generic envelope - subtle look */
}

.contact-method-card.bg-teal .method-icon img {
    filter: invert(36%) sepia(98%) saturate(1487%) hue-rotate(159deg) brightness(93%) contrast(101%);
    /* Natera Teal */
}

/* Icon Text Colors */
.contact-method-card:hover .method-icon {
    background: var(--color-bg-alt);
}

.method-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.method-value {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-natera-navy);
}

/* Branches Section */
.branches-container {
    background-color: white;
    /* Clean white container */
    padding: 60px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border-top: 4px solid var(--color-natera-blue);
}

.branches-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.location-icon {
    font-size: 2rem;
    color: var(--color-natera-teal);
}

.branches-title {
    color: var(--color-natera-navy);
    margin: 0;
    font-weight: 400;
    /* Natera Light Heading */
    font-size: 2rem;
}

.branches-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.branch-card {
    background-color: var(--color-bg-alt);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all 0.3s ease;
    text-align: left;
}

.branch-card:hover {
    background-color: white;
    border-color: var(--color-natera-teal);
    box-shadow: var(--shadow-soft);
}

.branch-name {
    color: var(--color-natera-blue);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.branch-phone {
    display: block;
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 1.1rem;
    transition: color 0.2s;
}

.branch-phone:hover {
    color: var(--color-natera-teal);
    text-decoration: underline;
}

.branch-address {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Responsive */
@media (max-width: 1024px) {
    .branches-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-methods-grid {
        grid-template-columns: 1fr;
    }

    .branches-container {
        padding: 30px;
    }
}

@media (max-width: 600px) {
    .branches-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: 80px 0 40px;
    background-color: var(--color-footer-bg);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 24px;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: white;
    text-decoration: none;
    transition: all var(--transition-base);
    text-align: center;
    line-height: 36px;
    will-change: transform, background;
}

.social-icon i {
    font-size: 14px;
    vertical-align: middle;
}

.social-icon:hover {
    background: var(--color-natera-teal);
    transform: translateY(-3px);
}

.footer-title {
    color: white;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 30px;
    font-weight: 700;
}

.footer-links-list {
    list-style: none;
}

.footer-links-list li {
    margin-bottom: 16px;
}

.footer-links-list a {
    color: var(--color-footer-text);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-base);
}

.footer-links-list a:hover {
    color: white;
}

.footer-col--tech {
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding-left: 60px;
}

.footer-natera-logo {
    height: 30px;
    width: auto;
    margin-bottom: 24px;
    filter: brightness(0) invert(1);
}

.footer-rep-text {
    color: var(--color-natera-gold);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.4;
    margin-bottom: 12px;
}

.footer-trademark {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    font-style: italic;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.medical-disclaimer {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Floating Action Buttons */
.float-btn-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.float-btn {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    color: white;
    text-decoration: none;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-align: center;
    line-height: 60px;
    will-change: transform;
}

.float-btn i {
    font-size: 24px;
    vertical-align: middle;
}

.float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.float-btn--whatsapp {
    background-color: #25D366;
}

.float-btn--phone {
    background-color: #1D2D44;
}

.float-btn--scroll-top {
    background-color: var(--color-natera-gold);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.float-btn--scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ===================================
   Responsive Design
   Breakpoints:
   - Large Desktop: > 968px (default)
   - Tablet: 768px - 968px
   - Mobile: < 600px
   =================================== */

/* Tablet and Small Desktop (768px - 968px) */
@media (max-width: 968px) {

    /* Typography */
    h1 {
        font-size: 2.5rem;
    }

    /* Hero Section */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    /* Contact Section */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .footer-col--tech {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--color-footer-border);
        padding-top: 40px;
        grid-column: span 2;
    }
}

/* Tablet Only (768px) */
@media (max-width: 768px) {

    /* Typography */
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 2rem;
    }

    /* Container */
    .container {
        padding: 0 20px;
    }

    /* Navigation */
    .nav-toggle {
        display: flex;
    }
}

/* Mobile (< 600px) */
@media (max-width: 600px) {

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-col--tech {
        grid-column: span 1;
    }

    /* Floating Action Buttons */
    .float-btn-container {
        bottom: 20px;
        right: 20px;
    }

    .float-btn {
        width: 50px;
        height: 50px;
        line-height: 50px;
    }

    /* Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: var(--transition-base);
        z-index: 1000;
        gap: 40px;
    }

    .nav-menu.active {
        right: 0;
    }

    /* Hero */
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
}

/* ===================================
   Visual Enhancements - New Styles 
   =================================== */

/* Hero Image Specifics */
.hero-img {
    width: 100%;
    max-height: 450px;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0, 130, 161, 0.15));
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Process Steps Infographic */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
    position: relative;
}

.process-step {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-natera-teal);
}

.process-image {
    width: 100%;
    height: 220px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.3s ease;
    overflow: hidden;
    padding: 20px;
}

.process-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.process-step:hover .process-image {
    background: var(--color-bg-blue);
}

.process-step:hover .process-image img {
    transform: scale(1.05);
}

.process-content h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--color-natera-navy);
}

/* Accuracy Highlight Component */
.accuracy-highlight {
    margin-top: 60px;
    background: linear-gradient(135deg, var(--color-natera-green) 0%, #76ad35 100%);
    border-radius: var(--radius-lg);
    padding: 3px;
    /* Border effect */
    box-shadow: 0 20px 40px rgba(137, 196, 65, 0.2);
}

.accuracy-content {
    background: white;
    border-radius: calc(var(--radius-lg) - 2px);
    padding: 50px;
    display: flex;
    align-items: center;
    gap: 50px;
}

.accuracy-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 150px;
    height: 150px;
    border-radius: 50%;
    position: relative;
    /* Donut chart: 98% green, 2% gray - starts from top (270deg offset) */
    background: conic-gradient(from 270deg,
            var(--color-natera-green) 0% var(--accuracy-pct),
            #E2E8F0 var(--accuracy-pct) 100%);
    transition: --accuracy-pct 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Inner white circle to create donut effect */
.accuracy-stat::after {
    content: '';
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    background: white;
}

.accuracy-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-natera-navy);
    line-height: 1;
    position: relative;
    z-index: 1;
}

.accuracy-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-natera-green);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.accuracy-text h3 {
    color: var(--color-natera-navy);
    font-size: 1.8rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.accuracy-text p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

/* Indications Icons */
.cancer-icon-box {
    width: 50px;
    height: 50px;
    background: var(--color-bg-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--color-natera-teal);
    font-size: 1.2rem;
    transition: all 0.2s ease;
}

.cancer-card:hover .cancer-icon-box {
    background: var(--color-natera-teal);
    color: white;
}

@media (max-width: 768px) {
    .accuracy-content {
        flex-direction: column;
        padding: 30px;
        text-align: center;
        gap: 30px;
    }
}