:root {
    --accent: #E8632B;
    --bg: #1A1714;
    --surface: #252220;
    --surface-elevated: #332F2B;
    --border: #4A4540;
    --text-primary: #F5F0EB;
    --text-secondary: #B5AFA8;
    --text-muted: #7A746E;
    --radius: 14px;
    --radius-sm: 10px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(26, 23, 20, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 24px;
}

.logo-text {
    font-size: 28px; font-weight: 800;
    color: var(--text-primary);
}

.logo-text-sm { font-size: 22px; }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text-primary); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 600; text-decoration: none; border-radius: var(--radius-sm);
    transition: all 0.2s; cursor: pointer; border: none;
}

.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 15px; border-radius: var(--radius); }
.btn-block { width: 100%; padding: 14px; font-size: 15px; }

.btn-primary {
    background: var(--accent); color: #fff;
}
.btn-primary:hover { background: #D4551F; transform: translateY(-1px); }

.btn-outline {
    background: transparent; color: var(--text-primary);
    border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* Hero */
.hero {
    padding: 140px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(232, 99, 43, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner { max-width: 700px; margin: 0 auto; position: relative; }

.hero-badge {
    display: inline-block;
    padding: 6px 16px; border-radius: 20px;
    background: rgba(232, 99, 43, 0.1);
    border: 1px solid rgba(232, 99, 43, 0.2);
    color: var(--accent);
    font-size: 13px; font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 800; line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-size: 17px; color: var(--text-secondary);
    max-width: 520px; margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Phone mockup */
.hero-phones { margin-top: 60px; display: flex; justify-content: center; }

.phone {
    width: 280px;
    background: var(--surface);
    border-radius: 28px;
    border: 2px solid var(--border);
    padding: 20px 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.phone-header {
    font-size: 18px; font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.phone-card {
    background: var(--surface-elevated);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 12px;
    border: 1px solid var(--border);
}

.phone-exercise {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--text-primary);
    margin-bottom: 6px;
}

.phone-exercise .slot {
    font-size: 10px; font-weight: 700;
    color: var(--accent);
    background: rgba(232, 99, 43, 0.1);
    padding: 2px 7px;
    border-radius: 10px;
}

.phone-meta {
    font-size: 11px; color: var(--text-muted);
    margin-top: 4px;
}

/* Section headers */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800; margin-bottom: 12px;
    letter-spacing: -0.01em;
}
.section-header p { font-size: 16px; color: var(--text-secondary); max-width: 480px; margin: 0 auto; }

/* Features */
.features { padding: 100px 24px; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.feature-icon { font-size: 28px; margin-bottom: 14px; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* How it works */
.how-it-works { padding: 100px 24px; background: var(--surface); }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; }

.step { text-align: center; }

.step-num {
    width: 48px; height: 48px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--accent);
    color: #fff; font-size: 20px; font-weight: 800;
    border-radius: 50%;
    margin-bottom: 16px;
}

.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-secondary); max-width: 280px; margin: 0 auto; line-height: 1.6; }

/* Pricing */
.pricing { padding: 100px 24px; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    align-items: start;
}

.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    position: relative;
}

.pricing-card-featured {
    border-color: var(--accent);
    box-shadow: 0 0 40px rgba(232, 99, 43, 0.1);
}

.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--accent); color: #fff;
    font-size: 12px; font-weight: 700;
    padding: 4px 16px; border-radius: 20px;
}

.pricing-name { font-size: 14px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.pricing-price { font-size: 44px; font-weight: 800; letter-spacing: -0.02em; }
.pricing-period { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
    margin-right: 10px;
}

.pricing-note {
    font-size: 12px; color: var(--text-muted);
    text-align: center; margin-bottom: 16px;
}

/* Download */
.download {
    padding: 100px 24px;
    background: var(--surface);
}

.download-inner { text-align: center; max-width: 500px; margin: 0 auto; }
.download-inner h2 { font-size: 36px; font-weight: 800; margin-bottom: 12px; }
.download-inner > p { font-size: 16px; color: var(--text-secondary); margin-bottom: 32px; }

.download-badges { margin-bottom: 16px; }

.app-store-badge { display: inline-block; transition: transform 0.2s; }
.app-store-badge:hover { transform: scale(1.05); }

.download-note { font-size: 13px; color: var(--text-muted); }

/* Footer */
footer {
    padding: 60px 24px 24px;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; justify-content: space-between;
    flex-wrap: wrap; gap: 40px;
}

.footer-brand p { font-size: 14px; color: var(--text-muted); margin-top: 8px; }

.footer-links { display: flex; gap: 60px; }

.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.footer-col a { color: var(--text-secondary); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    max-width: 1100px; margin: 40px auto 0;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p { font-size: 13px; color: var(--text-muted); }

/* Responsive */
@media (max-width: 768px) {
    .nav-links a:not(.btn) { display: none; }
    .hero { padding: 120px 20px 60px; }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 15px; }
    .features, .how-it-works, .pricing, .download { padding: 60px 20px; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
    .footer-links { gap: 32px; }
    .footer-inner { flex-direction: column; }
    .phone { width: 240px; }
}