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

:root {
    --primary: #2D9D8F;
    --primary-light: #E8F5F3;
    --primary-dark: #1E6B61;
    --bg-light: #F0F7F6;
    --text-dark: #1A1A1A;
    --text-gray: #666;
    --text-light: #999;
    --white: #fff;
    --border: #E5E5E5;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-light);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.italic { font-family: 'Playfair Display', Georgia, serif; font-style: italic; font-weight: 400; }

/* Header */
.header { padding: 20px 0; background: var(--bg-light); position: sticky; top: 0; z-index: 100; }
.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 24px; font-weight: 600; color: var(--primary); }
.nav { display: flex; gap: 32px; }
.nav-link { text-decoration: none; color: var(--text-gray); font-weight: 500; transition: color 0.2s; }
.nav-link:hover, .nav-link.active { color: var(--text-dark); }

/* Badge */
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: var(--white); border-radius: 50px; font-size: 14px; color: var(--text-dark); border: 1px solid var(--border); }
.badge-dot { width: 8px; height: 8px; background: var(--primary); border-radius: 50%; }
.badge-icon { font-size: 16px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.2s; border: none; text-decoration: none; }
.btn-primary { background: var(--text-dark); color: var(--white); }
.btn-primary:hover { background: #333; }
.btn-outline { background: var(--white); color: var(--text-dark); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-light); }
.btn-white { background: var(--white); color: var(--text-dark); }
.btn-white:hover { background: #f5f5f5; }

/* Hero Section */
.hero { padding: 60px 0 100px; text-align: center; position: relative; overflow: hidden; }
.floating-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape { position: absolute; background: rgba(45, 157, 143, 0.1); border-radius: 8px; }
.shape-1 { width: 60px; height: 80px; top: 15%; left: 5%; }
.shape-2 { width: 80px; height: 100px; top: 10%; left: 12%; }
.shape-3 { width: 50px; height: 120px; top: 25%; left: 20%; }
.shape-4 { width: 100px; height: 60px; top: 8%; right: 5%; }
.shape-5 { width: 70px; height: 90px; top: 20%; right: 15%; }
.shape-6 { width: 60px; height: 70px; top: 30%; right: 8%; }
.hero-content { position: relative; z-index: 1; }
.hero-title { font-size: 56px; font-weight: 700; line-height: 1.2; margin: 24px 0; }
.hero-subtitle { font-size: 18px; color: var(--text-gray); max-width: 600px; margin: 0 auto 32px; }
.signup-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.email-input { padding: 12px 20px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; width: 280px; background: var(--white); }
.email-input:focus { outline: none; border-color: var(--primary); }
.email-input.dark { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.2); color: var(--white); }
.email-input.dark::placeholder { color: rgba(255, 255, 255, 0.5); }

/* App Mockup */
.app-mockup { display: flex; justify-content: center; align-items: center; gap: 20px; margin-top: 60px; flex-wrap: wrap; position: relative; }
.mockup-card { background: var(--white); border-radius: 16px; padding: 20px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.score-trend { width: 220px; text-align: left; }
.score-trend h4 { font-size: 16px; font-weight: 600; }
.text-muted { font-size: 12px; color: var(--text-light); }
.trend-indicator { margin: 8px 0; }
.trend-up { color: #22C55E; font-size: 14px; font-weight: 500; }
.chart-placeholder { height: 80px; background: linear-gradient(135deg, var(--primary-light) 0%, transparent 100%); border-radius: 8px; margin-top: 12px; }
.mockup-phone { background: var(--primary); border-radius: 32px; padding: 12px; width: 260px; color: var(--white); }
.phone-header { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; font-size: 12px; }
.notch { width: 80px; height: 24px; background: #000; border-radius: 16px; }
.phone-content { background: var(--white); border-radius: 24px; padding: 20px; color: var(--text-dark); min-height: 200px; }
.phone-content h3 { font-size: 20px; margin-bottom: 12px; }
.recap-card { background: var(--primary-light); padding: 12px; border-radius: 12px; margin-bottom: 16px; }
.recap-label { font-size: 10px; color: var(--primary); font-weight: 600; }
.recap-card p { font-size: 14px; font-weight: 500; }
.vitals-circles { display: flex; gap: 12px; justify-content: center; }
.vital-circle { text-align: center; font-size: 18px; font-weight: 600; }
.vital-circle small { display: block; font-size: 10px; font-weight: 400; color: var(--text-gray); }
.hrv-card { width: 180px; text-align: left; }
.hrv-icon { font-size: 20px; }
.hrv-card h4 { font-size: 12px; color: #EF4444; margin: 8px 0; }
.hrv-value { font-size: 36px; font-weight: 700; }
.hrv-value .unit { font-size: 16px; font-weight: 400; color: var(--text-gray); }

/* Sections */
.section { padding: 100px 0; }
.section-title { font-size: 48px; font-weight: 700; line-height: 1.2; margin: 24px 0; text-align: center; }
.section-title-left { font-size: 42px; font-weight: 700; line-height: 1.2; margin: 24px 0 16px; }
.section-subtitle { font-size: 18px; color: var(--text-gray); max-width: 600px; margin: 0 auto; text-align: center; }
.section-subtitle-left { font-size: 16px; color: var(--text-gray); margin-bottom: 32px; }

/* Compatibility Section */
.compatibility { text-align: center; }
.integrations-grid { display: flex; justify-content: center; align-items: center; gap: 24px; margin-top: 48px; flex-wrap: wrap; }
.integration-icon { width: 60px; height: 60px; background: var(--white); border-radius: 16px; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08); font-size: 24px; }
.integration-icon.samsung { background: #FF6B2B; color: white; font-weight: 700; }
.integration-icon.eight { background: #000; color: white; font-weight: 700; }
.integration-center { background: var(--white); border-radius: 16px; padding: 32px; max-width: 280px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); }
.integration-center h4 { font-size: 18px; margin-bottom: 8px; }
.integration-center p { font-size: 14px; color: var(--text-gray); margin-bottom: 16px; }

/* Lab Reports Section */
.lab-reports-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.features-list { display: flex; flex-direction: column; gap: 24px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon { width: 40px; height: 40px; background: var(--primary-light); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--primary); }
.feature-item h4 { font-size: 16px; color: var(--primary); margin-bottom: 4px; }
.feature-item p { font-size: 14px; color: var(--text-gray); }
.lab-reports-mockup { display: flex; justify-content: center; }
.upload-card { background: var(--primary); border-radius: 24px; padding: 24px; color: var(--white); max-width: 360px; }
.upload-header { margin-bottom: 20px; }
.upload-header h4 { font-size: 24px; line-height: 1.3; }
.upload-header p { font-size: 14px; opacity: 0.8; margin-top: 8px; }
.security-badge { background: rgba(255, 255, 255, 0.1); border-radius: 12px; padding: 12px; margin-bottom: 16px; }
.security-badge span { font-size: 12px; font-weight: 600; color: var(--primary-light); }
.security-badge ul { font-size: 11px; margin-top: 8px; padding-left: 16px; opacity: 0.8; }
.upload-box { background: var(--white); border-radius: 16px; padding: 20px; color: var(--text-dark); }
.upload-box h5 { font-size: 16px; margin-bottom: 4px; }
.upload-box > p { font-size: 12px; color: var(--text-gray); margin-bottom: 16px; }
.upload-dropzone { border: 2px dashed var(--border); border-radius: 12px; padding: 24px; text-align: center; }
.upload-icon { font-size: 32px; display: block; margin-bottom: 8px; }
.upload-dropzone p { font-size: 12px; color: var(--text-gray); margin-bottom: 12px; }

/* Intelligence Section */
.intelligence-content-center { text-align: center; }
.features-grid-center { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.feature-card { background: var(--white); border-radius: 16px; padding: 24px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06); text-align: center; }
.feature-card-icon { font-size: 24px; margin-bottom: 12px; }
.feature-card h4 { font-size: 16px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-gray); }

/* Daily Digest Section */
.daily-digest-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.tasks-card { background: var(--white); border-radius: 16px; padding: 20px; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); margin-top: 24px; }
.tasks-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 14px; }
.tasks-count { color: var(--text-gray); font-size: 12px; }
.task-item { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 10px; margin-bottom: 8px; background: var(--bg-light); }
.task-item.completed { background: rgba(45, 157, 143, 0.1); }
.task-icon { font-size: 16px; }
.task-name { flex: 1; font-size: 14px; }
.task-time { font-size: 12px; color: var(--text-gray); }
.task-check { color: var(--primary); font-weight: 600; }
.task-check.empty { color: var(--text-light); }
.daily-digest-mockup { display: flex; justify-content: center; }
.phone-mockup { background: var(--primary); border-radius: 32px; padding: 12px; width: 280px; }
.phone-mockup .phone-content { background: var(--white); border-radius: 24px; padding: 20px; color: var(--text-dark); }
.progress-bar { background: var(--bg-light); height: 8px; border-radius: 4px; margin: 12px 0 8px; }
.progress { background: var(--primary); height: 100%; border-radius: 4px; }
.progress-text { font-size: 12px; color: var(--text-gray); }
.todo-item { margin-top: 16px; padding: 12px; border-radius: 12px; background: var(--bg-light); }
.todo-item.completed { background: rgba(45, 157, 143, 0.1); }
.todo-item.expanded { background: var(--white); border: 1px solid var(--border); }
.activity-badge, .supplement-badge { display: inline-block; padding: 4px 8px; border-radius: 4px; font-size: 10px; font-weight: 600; margin-bottom: 8px; }
.activity-badge { background: rgba(45, 157, 143, 0.1); color: var(--primary); }
.supplement-badge { background: rgba(239, 68, 68, 0.1); color: #EF4444; }
.todo-item h4 { font-size: 14px; margin-bottom: 8px; }
.todo-item ul { font-size: 11px; color: var(--text-gray); padding-left: 16px; }
.todo-item p { font-size: 14px; }

/* FAQ Section */
.faq { text-align: center; }
.faq-list { max-width: 800px; margin: 48px auto 0; text-align: left; }
.faq-item { background: var(--white); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; background: none; border: none; font-size: 16px; font-weight: 500; cursor: pointer; text-align: left; }
.faq-icon { color: var(--text-gray); font-size: 12px; }
.faq-answer { display: none; padding: 0 24px 20px; }
.faq-answer.show { display: block; }
.faq-answer p { font-size: 14px; color: var(--text-gray); line-height: 1.7; }

/* CTA Section */
.cta-section { background: linear-gradient(135deg, #2D9D8F 0%, #1E6B61 100%); padding: 80px 0; text-align: center; color: var(--white); border-radius: 24px; margin: 0 24px 60px; }
.cta-title { font-size: 42px; font-weight: 700; line-height: 1.2; margin-bottom: 16px; }
.cta-subtitle { font-size: 16px; opacity: 0.9; max-width: 600px; margin: 0 auto 32px; }
.cta-form { justify-content: center; }

/* Footer */
.footer { padding: 32px 0; border-top: 1px solid var(--border); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer-left .logo { margin-bottom: 8px; }
.copyright { font-size: 14px; color: var(--text-gray); }
.footer-right { display: flex; align-items: center; gap: 16px; }
.social-link { width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; color: var(--text-dark); font-size: 16px; }

/* Responsive */
@media (max-width: 968px) {
    .hero-title { font-size: 42px; }
    .section-title { font-size: 36px; }
    .section-title-left { font-size: 32px; }
    .lab-reports-grid, .daily-digest-grid { grid-template-columns: 1fr; gap: 40px; }
    .features-grid-center { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .header-content { flex-direction: column; gap: 16px; }
    .nav { gap: 16px; }
    .hero-title { font-size: 32px; }
    .signup-form { flex-direction: column; align-items: center; }
    .email-input { width: 100%; max-width: 300px; }
    .btn { width: 100%; max-width: 300px; justify-content: center; }
    .cta-section { margin: 0 16px 40px; padding: 60px 24px; }
    .cta-title { font-size: 32px; }
    .footer-content { flex-direction: column; gap: 24px; text-align: center; }
    .features-grid-center { grid-template-columns: 1fr; }
}