/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --orange: #FF6B35;
    --orange-light: #FF8B5E;
    --orange-dark: #E5552A;
    --bg: #0D0D0D;
    --bg-alt: #141414;
    --bg-card: #1A1A1A;
    --text: #E8E8E8;
    --text-muted: #888;
    --text-dim: #666;
    --border: #2A2A2A;
    --radius: 12px;
    --radius-sm: 8px;
}

html {
    scroll-behavior: smooth;
}

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

a {
    color: var(--orange);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--orange-light);
}

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

/* ===== Nav ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text) !important;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--orange);
    color: #fff;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--text-muted);
    color: var(--text);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* ===== Hero ===== */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.accent {
    color: var(--orange);
}

.hero-sub {
    font-size: 1.4rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-dim);
    max-width: 640px;
    margin: 0 auto 40px;
}

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

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section h2 {
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.section-sub {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 48px;
}

/* ===== Module Grid ===== */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

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

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

.module-num {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--orange);
    background: rgba(255, 107, 53, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.module-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.module-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.5;
}

.tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
}

.tag-beginner {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
}

.tag-intermediate {
    background: rgba(234, 179, 8, 0.1);
    color: #eab308;
}

.tag-advanced {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

/* ===== Audience ===== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.audience-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    text-align: center;
}

.audience-emoji {
    font-size: 3rem;
    margin-bottom: 16px;
}

.audience-card h3 {
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.audience-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== Templates ===== */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.template-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: border-color 0.2s, transform 0.2s;
}

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

.template-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.template-card h3 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.template-card p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ===== CTA Section ===== */
.cta-section {
    text-align: center;
    padding: 80px 0;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-left p {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 4px;
}

.footer-right {
    display: flex;
    gap: 24px;
}

.footer-right a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-right a:hover {
    color: var(--text);
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-sub {
        font-size: 1.1rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .section {
        padding: 60px 0;
    }

    .section h2 {
        font-size: 1.6rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(13, 13, 13, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-toggle {
        display: block;
    }

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

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

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

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

    .footer-right {
        justify-content: center;
    }
}

@media (max-width: 400px) {
    .template-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
}