:root {
    --bg-dark: #0a0f1a;
    --bg-card: rgba(255,255,255,0.03);
    --border-subtle: rgba(255,255,255,0.08);
    --text-main: #e0e4ec;
    --text-muted: rgba(255,255,255,0.65);
    --text-faint: rgba(255,255,255,0.25);
    --accent-teal: #5dc9a5;
    --accent-blue: #378add;
    --accent-purple: #7f77dd;
    --teal-bg: rgba(93,201,165,0.12);
    --blue-bg: rgba(55,138,221,0.12);
    --purple-bg: rgba(127,119,221,0.12);
    --accent-coral: #d85a30;
    --coral-bg: rgba(216,90,48,0.12);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* NAV */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10,15,26,0.9);
    backdrop-filter: blur(12px);
    border-bottom: 0.5px solid var(--border-subtle);
}
.site-nav .container {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.nav-logo {
    font-size: 22px; font-weight: 600; color: #fff; letter-spacing: 2px;
}
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a {
    font-size: 13px; color: rgba(255,255,255,0.6);
    transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent-teal); }

.nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; }

/* HERO */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0f1a2e 100%);
}
.hero-label {
    font-size: 11px; text-transform: uppercase; letter-spacing: 3px;
    color: var(--accent-teal); margin-bottom: 16px;
}
.hero h1 {
    font-size: 48px; font-weight: 600; color: #fff; line-height: 1.15;
    margin-bottom: 20px;
}
.hero p {
    font-size: 17px; color: rgba(255,255,255,0.7);
    max-width: 520px; margin: 0 auto 36px;
}
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn-primary {
    background: var(--accent-teal); color: var(--bg-dark);
    padding: 12px 28px; border-radius: 6px; font-size: 14px; font-weight: 500;
    display: inline-block; transition: opacity 0.2s; border: none; cursor: pointer;
}
.btn-primary:hover { opacity: 0.85; color: var(--bg-dark); }

.btn-outline {
    border: 0.5px solid rgba(255,255,255,0.25); color: #fff;
    padding: 12px 28px; border-radius: 6px; font-size: 14px;
    display: inline-block; transition: all 0.2s; background: transparent; cursor: pointer;
}
.btn-outline:hover { border-color: rgba(255,255,255,0.5); color: #fff; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-border { border-top: 0.5px solid var(--border-subtle); }
.section-label {
    font-size: 11px; text-transform: uppercase; letter-spacing: 3px;
    margin-bottom: 8px;
}
.section-label--teal { color: var(--accent-teal); }
.section-label--blue { color: var(--accent-blue); }
.section-label--purple { color: var(--accent-purple); }

.section-title {
    font-size: 32px; font-weight: 600; color: #fff; margin-bottom: 16px;
}
.section-subtitle {
    font-size: 15px; color: var(--text-muted); max-width: 640px; line-height: 1.7;
}
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .section-subtitle { margin: 0 auto; }

/* SERVICE CARDS */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
    background: var(--bg-card);
    border: 0.5px solid var(--border-subtle);
    border-radius: 12px; padding: 28px;
    transition: border-color 0.3s;
}
.service-card:hover { border-color: rgba(255,255,255,0.15); }
.service-icon {
    width: 44px; height: 44px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px; font-size: 22px;
}
.service-icon--teal { background: var(--teal-bg); color: var(--accent-teal); }
.service-icon--blue { background: var(--blue-bg); color: var(--accent-blue); }
.service-icon--purple { background: var(--purple-bg); color: var(--accent-purple); }
.service-icon--coral { background: var(--coral-bg); color: var(--accent-coral); }

.service-card h3 { font-size: 17px; font-weight: 500; color: #fff; margin-bottom: 10px; }
.service-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.service-tags {
    margin-top: 16px; font-size: 12px; display: flex; flex-wrap: wrap; gap: 4px;
}
.service-tags span { opacity: 0.3; margin: 0 4px; }

/* DETAIL SECTIONS */
.detail-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.detail-grid--reverse { direction: rtl; }
.detail-grid--reverse > * { direction: ltr; }

.checklist { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.checklist li {
    display: flex; align-items: center; gap: 10px; font-size: 14px;
}
.checklist li::before {
    content: '\2713'; font-weight: 600; font-size: 14px;
    width: 20px; text-align: center; flex-shrink: 0;
}
.checklist--teal li::before { color: var(--accent-teal); }
.checklist--blue li::before { color: var(--accent-blue); }
.checklist--purple li::before { color: var(--accent-purple); }
.checklist--coral li::before { color: var(--accent-coral); }

.section-label--coral { color: var(--accent-coral); }

/* STATS */
.stats-panel {
    border-radius: 12px; padding: 28px;
}
.stats-panel--teal {
    background: rgba(93,201,165,0.04);
    border: 0.5px solid rgba(93,201,165,0.15);
}
.stats-panel--blue {
    background: rgba(55,138,221,0.04);
    border: 0.5px solid rgba(55,138,221,0.15);
}
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-box {
    background: var(--bg-card); border-radius: 8px; padding: 18px; text-align: center;
}
.stat-number { font-size: 30px; font-weight: 600; }
.stat-number--teal { color: var(--accent-teal); }
.stat-number--blue { color: var(--accent-blue); }
.stat-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* TRAINING TRACKS */
.tracks-panel {
    background: rgba(127,119,221,0.04);
    border: 0.5px solid rgba(127,119,221,0.15);
    border-radius: 12px; padding: 24px;
}
.tracks-title {
    font-size: 13px; font-weight: 500; color: var(--accent-purple); margin-bottom: 16px;
}
.track-item {
    background: var(--bg-card); border-radius: 8px;
    padding: 14px 18px; margin-bottom: 10px;
    display: flex; justify-content: space-between; align-items: center;
}
.track-item:last-child { margin-bottom: 0; }
.track-item span { font-size: 13px; }
.track-badge {
    font-size: 11px; color: var(--accent-purple);
    background: var(--purple-bg);
    padding: 3px 10px; border-radius: 4px; white-space: nowrap;
}

/* ABOUT SECTION */
.about-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.about-feature {
    background: var(--bg-card); border: 0.5px solid var(--border-subtle);
    border-radius: 12px; padding: 24px; text-align: center;
}
.about-feature-icon {
    font-size: 28px; margin-bottom: 12px;
}
.about-feature h4 { font-size: 15px; font-weight: 500; color: #fff; margin-bottom: 8px; }
.about-feature p { font-size: 13px; color: var(--text-muted); }

/* CONTACT / FOOTER */
.footer-contact {
    padding: 60px 0 20px; border-top: 0.5px solid var(--border-subtle);
}
.footer-grid {
    display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 32px;
    margin-bottom: 40px;
}
.footer-section h3 { font-size: 16px; font-weight: 500; color: #fff; margin-bottom: 14px; }
.footer-section p, .footer-section a {
    font-size: 13px; color: var(--text-muted); line-height: 1.8;
}
.footer-section a:hover { color: var(--accent-teal); }

.footer-bottom {
    border-top: 0.5px solid var(--border-subtle);
    padding: 16px 0; text-align: center;
    font-size: 11px; color: var(--text-faint);
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px;
}
.footer-bottom a { color: var(--text-faint); transition: color 0.2s; }
.footer-bottom a:hover { color: var(--accent-teal); }

/* BOOKING SECTION */
.booking-section {
    background: linear-gradient(135deg, rgba(93,201,165,0.06), rgba(55,138,221,0.06));
    border: 0.5px solid var(--border-subtle);
    border-radius: 16px; padding: 48px; text-align: center;
    margin: 0 auto; max-width: 720px;
}
.booking-section h2 {
    font-size: 28px; font-weight: 600; color: #fff; margin-bottom: 12px;
}
.booking-section p {
    font-size: 15px; color: var(--text-muted); margin-bottom: 28px;
}

/* CONTACT FORM */
.contact-form { max-width: 600px; margin: 0 auto; }
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block; font-size: 12px; color: var(--text-muted);
    margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 12px 16px; border-radius: 8px;
    border: 0.5px solid var(--border-subtle);
    background: var(--bg-card); color: #fff;
    font-family: var(--font-main); font-size: 14px;
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--accent-teal);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* MOBILE */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: 64px; left: 0; right: 0;
        background: rgba(10,15,26,0.98); padding: 20px 24px; gap: 16px;
        border-bottom: 0.5px solid var(--border-subtle);
    }
    .nav-toggle { display: block; }
    .hero h1 { font-size: 32px; }
    .hero { padding: 120px 0 60px; }
    .service-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; gap: 32px; }
    .detail-grid--reverse { direction: ltr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .booking-section { padding: 32px 20px; }
    .footer-bottom { flex-direction: column; gap: 8px; }
    .section-title { font-size: 26px; }
}