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

:root {
    --primary: #667eea;
    --secondary: #764ba2;
    --text-dark: #2c3e50;
    --text-muted: #6c757d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--white);
}

/* ─── Navigation ─── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(102, 126, 234, 0.15);
    z-index: 1000;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* ─── Hero ─── */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 140px 24px 100px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.92;
    max-width: 560px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-store {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    background: #000;
    color: #fff;
    padding: 12px 22px;
    border-radius: 12px;
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.15);
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    min-width: 180px;
}

.btn-store:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
    background: #1a1a1a;
}

.btn-store svg, .btn-store img {
    flex-shrink: 0;
}

.btn-store-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.btn-store-text small {
    font-size: 0.68rem;
    font-weight: 400;
    opacity: 0.85;
    letter-spacing: 0.02em;
}

.btn-store-text strong {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.18);
    border: 2px solid rgba(255,255,255,0.6);
    color: white;
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.28);
}

/* ─── Sections ─── */
section {
    padding: 80px 24px;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-label-light {
    color: rgba(255,255,255,0.7);
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
}

.text-center {
    text-align: center;
}

.text-center .section-subtitle {
    margin: 0 auto;
}

/* ─── Stats Bar ─── */
.stats-bar {
    background: var(--bg-light);
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
    padding: 40px 24px;
}

.stats-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 32px;
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}

.stat-item span {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ─── Screenshots ─── */
.screenshots-section {
    background: var(--bg-light);
}

.screenshots-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 56px;
    flex-wrap: wrap;
}

.screenshot-item {
    text-align: center;
    flex: 0 1 280px;
}

.screenshot-item img {
    width: 100%;
    max-width: 280px;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    border: 1px solid #e9ecef;
    display: block;
    margin: 0 auto;
}

.screenshot-item p {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ─── Features Intro ─── */
.features-intro {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.features-intro-text {
    flex: 1;
}

.features-intro-icon {
    flex-shrink: 0;
}

.features-intro-icon img {
    width: 160px;
    height: 160px;
    border-radius: 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

/* ─── Features Grid ─── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
    margin-top: 56px;
}

.feature-card {
    background: var(--white);
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 32px;
    transition: transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(102, 126, 234, 0.12);
}

.feature-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ─── Nutrients Section ─── */
.nutrients-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.nutrients-section .section-title {
    color: white;
}

.nutrients-section .section-subtitle {
    color: rgba(255,255,255,0.85);
}

.nutrients-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 16px;
    margin-top: 48px;
}

.nutrient-pill {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 14px;
    padding: 20px 16px;
    text-align: center;
    backdrop-filter: blur(6px);
}

.nutrient-pill .emoji {
    font-size: 1.6rem;
    display: block;
    margin-bottom: 10px;
}

.nutrient-pill strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.nutrient-pill span {
    font-size: 0.78rem;
    opacity: 0.8;
}

/* ─── How It Works ─── */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-top: 56px;
    text-align: center;
}

.step {
    position: relative;
}

.step-number {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1.2rem;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ─── Privacy Highlight ─── */
.privacy-highlight {
    background: var(--bg-light);
}

.privacy-card {
    background: white;
    border-radius: 20px;
    padding: 48px;
    border: 1px solid #e9ecef;
}

.privacy-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.privacy-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
}

.privacy-list li::before {
    content: "✓";
    color: #28a745;
    font-weight: 800;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.privacy-links {
    margin-top: 28px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.privacy-links a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
}

/* ─── CTA ─── */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.cta-section .section-title {
    color: white;
}

.cta-section p {
    color: rgba(255,255,255,0.88);
    font-size: 1.05rem;
    margin: 16px auto 36px;
    max-width: 480px;
}

/* ─── Disclaimer ─── */
.disclaimer {
    background: #fff3cd;
    border-top: 3px solid #ffc107;
    padding: 24px;
    text-align: center;
}

.disclaimer p {
    font-size: 0.85rem;
    color: #856404;
    max-width: 800px;
    margin: 0 auto;
}

/* ─── Footer ─── */
footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.75);
    padding: 48px 24px 32px;
}

.footer-inner {
    max-width: 1080px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.65;
}

.footer-contact {
    margin-top: 14px;
    font-size: 0.85rem;
}

.footer-contact a {
    color: var(--primary);
}

.footer-col h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 14px;
    font-size: 0.95rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
}

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .nutrients-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 120px 24px 80px;
    }

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

    .features-intro {
        flex-direction: column;
        align-items: flex-start;
    }

    .features-intro-icon {
        align-self: center;
    }

    .nav-links {
        display: none;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .privacy-card {
        padding: 28px 20px;
    }
}