:root {
    /* Brand Colors */
    --primary: #00897B; /* Teal 600 */
    --primary-dark: #004D40; /* Teal 900 */
    --accent: #1DE9B6; /* Teal A400 */
    --secondary: #26A69A; /* Teal 400 */
    --background: #0f172a; /* Slate 900 */
    --surface: #1e293b; /* Slate 800 */
    --text-primary: #f8fafc; /* Slate 50 */
    --text-secondary: #94a3b8; /* Slate 400 */
    --coral: #FF8A80;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #004D40 100%);
    --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.7) 100%);
    --gradient-text: linear-gradient(90deg, #1DE9B6 0%, #26A69A 100%);

    /* Spacing */
    --container-width: 1200px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --radius-pill: 50px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Section Header ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    position: relative;
    padding: 100px 0;
    padding-top: 72px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-visual {
    position: relative;
}

.trust-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(29, 233, 182, 0.1);
    border: 1px solid rgba(29, 233, 182, 0.25);
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 24px;
}

.cta-group {
    display: flex;
    gap: 16px;
    align-items: center;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-pill);
    font-weight: 600;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    cursor: pointer;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 137, 123, 0.3);
}

.cta-coming-soon {
    flex-direction: row;
    align-items: center;
    cursor: default;
    opacity: 0.85;
}

.cta-coming-soon span {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.cta-coming-soon .cta-store {
    font-size: 1rem;
    font-weight: 700;
}

.cta-coming-soon .cta-soon {
    font-size: 0.7rem;
    font-weight: 500;
    opacity: 0.75;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cta-apple {
    background: #ffffff;
    color: #1a1a1a;
    border-color: rgba(255, 255, 255, 0.2);
}

.cta-apple:hover {
    background: #f0f0f0;
    color: #1a1a1a;
}

.cta-google {
    background: rgba(52, 168, 83, 0.15);
    color: #ffffff;
    border-color: rgba(52, 168, 83, 0.3);
}

.cta-google:hover {
    background: rgba(52, 168, 83, 0.25);
}

/* ===== Phone Frame Component ===== */
.phone-frame {
    aspect-ratio: 9 / 19;
    max-width: 280px;
    margin: 0 auto;
    position: relative;
    box-shadow:
        0 2px 4px rgba(0, 0, 0, 0.12),
        0 8px 16px rgba(0, 0, 0, 0.2),
        0 24px 48px rgba(0, 0, 0, 0.3);
    border-radius: 28px;
}

.phone-frame::before {
    content: none;
}


.phone-screenshot {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center top;
    border-radius: 28px;
    display: block;
}

.phone-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Glassmorphism Card ===== */
.glass-card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

/* ===== Medications Section ===== */
.medications {
    padding: 80px 0;
    text-align: center;
}

.med-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.med-badge {
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(29, 233, 182, 0.3);
    background: rgba(29, 233, 182, 0.05);
    transition: all var(--transition-normal);
}

.med-badge:hover {
    background: rgba(29, 233, 182, 0.15);
    border-color: var(--accent);
}

.med-badge .med-name {
    font-weight: 600;
    color: var(--text-primary);
}

.med-badge .med-ingredient {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
}

/* ===== Features Section ===== */
.features {
    padding: 100px 0;
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.feature-block:nth-child(even) .feature-text {
    order: 2;
}

.feature-block:nth-child(even) .feature-visual {
    order: 1;
}

.feature-block--full {
    grid-template-columns: 1fr;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.dexa-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.dexa-metrics span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(171, 71, 188, 0.1);
    border: 1px solid rgba(171, 71, 188, 0.25);
    color: #ce93d8;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
}

.feature-text h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.feature-text p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(29, 233, 182, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    margin-bottom: 24px;
    font-size: 24px;
}

.feature-mini-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.feature-mini-card {
    padding: 32px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.feature-mini-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.feature-mini-card .feature-icon {
    margin-bottom: 16px;
}

.feature-mini-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.feature-mini-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.feature-mini-card--wide {
    grid-column: 1 / -1;
}

.feature-mini-card--wide .dexa-metrics {
    margin-top: 16px;
}

/* ===== Pricing Section ===== */
.pricing {
    padding: 100px 0;
}

.pricing-table {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-col {
    padding: 32px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.pricing-col--featured {
    border-color: var(--accent);
    position: relative;
    transform: scale(1.05);
}

.pricing-col--featured::before {
    content: "Best Value";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--background);
    padding: 4px 16px;
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 700;
}

.pricing-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 2rem;
    font-weight: 800;
    margin: 16px 0;
}

.pricing-row {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pricing-row:last-child {
    border-bottom: none;
}

.pricing-row .fa-check {
    color: #4caf50;
}

.pricing-row .fa-xmark {
    color: #ef5350;
}

/* ===== Privacy Section ===== */
.privacy {
    padding: 100px 0;
}

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

.privacy-card {
    text-align: center;
    padding: 32px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.privacy-card i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 16px;
    display: block;
}

.privacy-card h4 {
    margin-bottom: 8px;
}

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

.privacy-quote {
    text-align: center;
    font-style: italic;
    color: var(--text-secondary);
    margin-top: 48px;
    font-size: 1.1rem;
}

/* ===== FAQ Section ===== */
.faq {
    padding: 100px 0;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 12px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: var(--gradient-card);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    text-align: left;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--accent);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 24px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

/* ===== Final CTA Section ===== */
.final-cta {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 137, 123, 0.1), rgba(0, 77, 64, 0.2));
}

.final-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.final-cta p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.final-cta .cta-group {
    justify-content: center;
    margin-bottom: 24px;
}

.final-cta .trust-tag {
    margin-bottom: 0;
}

/* ===== Footer ===== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ===== Comparison Section (Legacy) ===== */
.comparison {
    padding: 100px 0;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

/* ===== Medical Disclaimer ===== */
.disclaimer-section {
    background: rgba(0, 0, 0, 0.3);
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.disclaimer-box {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-width: 800px;
    margin: 0 auto;
}

.citation {
    display: block;
    margin-top: 8px;
    font-family: monospace;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ===== Decorative Blobs ===== */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.4;
}

.blob-1 {
    top: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: var(--primary-dark);
}

.blob-2 {
    bottom: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: purple;
}

/* ===== Scroll Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Language Toggle ===== */
.lang-toggle {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 1000;
    display: flex;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
}
.lang-toggle button {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}
.lang-toggle button.active {
    background: var(--primary);
    color: white;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    padding: 16px 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--accent);
    text-decoration: none;
}
.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}
.nav-link:hover {
    color: var(--text-primary);
}

/* ===== Responsive: Tablet (768px) ===== */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-text p {
        margin: 0 auto 32px;
    }

    .cta-group {
        justify-content: center;
        flex-wrap: wrap;
    }

    .trust-tag {
        margin: 0 auto 24px;
    }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .feature-block:nth-child(even) .feature-text {
        order: 0;
    }

    .feature-block:nth-child(even) .feature-visual {
        order: 0;
    }

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

    .pricing-table {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-col--featured {
        transform: none;
    }

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

/* ===== Responsive: Mobile (480px) ===== */
@media (max-width: 480px) {
    h1 {
        font-size: 2rem !important;
    }

    h2 {
        font-size: 1.8rem !important;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
    }

    .cta-group {
        flex-direction: column;
    }

    .feature-mini-grid {
        grid-template-columns: 1fr;
    }

    .privacy-grid {
        grid-template-columns: 1fr;
    }

    .pricing-table {
        grid-template-columns: 1fr;
    }
}