:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-glow: rgba(79, 70, 229, 0.2);

    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --bg-page: #fafafa;
    --bg-surface: #ffffff;
    --bg-subtle: #f8fafc;
    --border: #e2e8f0;

    --blue-bg: #eff6ff;
    --blue-text: #2563eb;
    --emerald-bg: #ecfdf5;
    --emerald-text: #059669;
    --purple-bg: #faf5ff;
    --purple-text: #7c3aed;
    --amber-bg: #fffbeb;
    --amber-text: #d97706;
    --rose-bg: #fff1f2;
    --rose-text: #e11d48;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 30px -10px rgba(0, 0, 0, 0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-outline {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--bg-subtle);
    border-color: #cbd5e1;
    color: var(--primary);
}

.btn-ghost {
    color: var(--text-muted);
}

.btn-ghost:hover {
    color: var(--text-main);
}

.btn-outline-white {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #ffffff;
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.full-width {
    width: 100%;
}

/* Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow 0.25s ease;
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    box-shadow: 0 4px 10px var(--primary-glow);
}

.brand-text {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-main);
}

.brand-text span {
    color: var(--primary);
}

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

.nav-link {
    font-size: 0.925rem;
    font-weight: 600;
    color: var(--text-muted);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
    display: none;
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.mobile-drawer.open {
    display: flex;
}

.mobile-nav-link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    padding: 6px 0;
}

.mobile-drawer-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Hero */
.hero-section {
    padding: 90px 0 70px;
    background: radial-gradient(circle at 50% 10%, rgba(79, 70, 229, 0.06) 0%, transparent 60%);
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--primary-light);
    border: 1px solid rgba(79, 70, 229, 0.15);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    max-width: 860px;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 640px;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
    justify-content: center;
}

.metric-ribbon {
    display: inline-flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 36px;
    box-shadow: var(--shadow-sm);
    gap: 32px;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.metric-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.metric-divider {
    width: 1px;
    height: 36px;
    background: var(--border);
}

/* Modules Grid */
.modules-section {
    padding: 90px 0;
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.8px;
    line-height: 1.25;
    margin-bottom: 14px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.module-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.module-card:hover {
    transform: translateY(-4px);
    border-color: #cbd5e1;
    box-shadow: var(--shadow-lg);
}

.module-icon-box {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.icon-blue {
    background: var(--blue-bg);
    color: var(--blue-text);
}

.icon-emerald {
    background: var(--emerald-bg);
    color: var(--emerald-text);
}

.icon-purple {
    background: var(--purple-bg);
    color: var(--purple-text);
}

.icon-amber {
    background: var(--amber-bg);
    color: var(--amber-text);
}

.icon-rose {
    background: var(--rose-bg);
    color: var(--rose-text);
}

.module-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.module-card-desc {
    font-size: 0.925rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 22px;
}

.module-highlights {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
    flex-grow: 1;
}

.module-highlights li {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

.module-highlights li::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
}

.module-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: auto;
}

.module-link:hover {
    color: var(--primary-hover);
    gap: 12px;
}

/* Steps */
.steps-section {
    padding: 80px 0;
    background: var(--bg-subtle);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.step-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: var(--transition);
}

.step-card:hover {
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.step-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
    line-height: 1;
}

.step-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.55;
}

/* CTA */
.cta-section {
    padding: 90px 0;
}

.cta-box {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #4338ca 100%);
    border-radius: var(--radius-xl);
    padding: 64px 40px;
    text-align: center;
    color: #ffffff;
    box-shadow: var(--shadow-xl);
}

.cta-title {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.8px;
    max-width: 680px;
    margin: 0 auto 16px;
    line-height: 1.25;
}

.cta-subtitle {
    font-size: 1.05rem;
    color: #c7d2fe;
    max-width: 540px;
    margin: 0 auto 36px;
}

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

/* Footer */
.site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: 70px 0 30px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 320px;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 14px;
}

.footer-links-grid {
    display: flex;
    gap: 64px;
    flex-wrap: wrap;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-heading {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-main);
    margin-bottom: 4px;
}

.footer-col a {
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.825rem;
    color: var(--text-light);
    flex-wrap: wrap;
    gap: 12px;
}

/* Breakpoints */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }

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

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

    .footer-links-grid {
        gap: 40px;
    }
}

@media (max-width: 768px) {

    .desktop-links,
    .nav-actions .btn-ghost {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-section {
        padding: 60px 0 50px;
    }

    .hero-title {
        font-size: 2.2rem;
        letter-spacing: -1px;
    }

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

    .hidden-mobile {
        display: none;
    }

    .metric-ribbon {
        flex-direction: column;
        width: 100%;
        padding: 24px;
        gap: 18px;
    }

    .metric-divider {
        width: 60px;
        height: 1px;
    }

    .cta-box {
        padding: 44px 20px;
    }

    .cta-title {
        font-size: 1.85rem;
    }

    .footer-container {
        flex-direction: column;
        gap: 36px;
    }
}