:root {
    --bg-primary: #0b0f17;
    --bg-secondary: #131b26;
    --bg-tertiary: #1a2434;
    --bg-card: rgba(19, 27, 38, 0.85);
    --border-color: #233044;
    --border-hover: #3b82f6;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    --accent-glow: rgba(56, 189, 248, 0.15);
    --badge-bg: rgba(56, 189, 248, 0.12);
    --badge-text: #38bdf8;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --max-w: 1140px;
    --header-h: 72px;
}

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

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Atmosphere */
.bg-glow {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 15% 70%, rgba(56, 189, 248, 0.04) 0%, transparent 50%);
}

/* Typography & General */
a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
    color: #7dd3fc;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

p {
    color: var(--text-secondary);
}

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* Header & Navigation */
header.site-header {
    height: var(--header-h);
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 15, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.35);
}

.brand-name {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

nav.main-nav a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 6px 0;
    position: relative;
}

nav.main-nav a:hover,
nav.main-nav a.active {
    color: var(--text-primary);
}

nav.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #0b0f17;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(56, 189, 248, 0.25);
}

.btn-primary:hover {
    color: #0b0f17;
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: rgba(35, 48, 68, 0.8);
    border-color: #3b82f6;
    color: #fff;
    transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
    padding: 90px 0 60px;
    text-align: center;
    position: relative;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--badge-bg);
    color: var(--badge-text);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.hero-title {
    font-size: clamp(2.4rem, 5vw, 4rem);
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.6;
}

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

/* Sections */
section {
    padding: 70px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.section-title {
    font-size: 2.1rem;
    margin-bottom: 12px;
}

.section-desc {
    font-size: 1.05rem;
}

/* Game & Project Cards */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    transition: all 0.25s ease;
    backdrop-filter: blur(8px);
    position: relative;
    overflow: hidden;
}

.card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.card-tag {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent-blue);
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.45rem;
    margin-bottom: 12px;
}

.card-desc {
    font-size: 0.96rem;
    line-height: 1.6;
    margin-bottom: 24px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.platform-pills {
    display: flex;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.platform-pill {
    background: var(--bg-tertiary);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Values / Philosophy Grid */
.grid-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--badge-bg);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.feature-title {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 0.92rem;
}

/* Privacy Spotlight Banner */
.privacy-banner {
    background: linear-gradient(135deg, rgba(19, 27, 38, 0.9) 0%, rgba(26, 36, 52, 0.8) 100%);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-xl);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin-top: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.privacy-banner-text h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.privacy-banner-text p {
    font-size: 0.98rem;
    max-width: 600px;
}

/* Legal Documents Layout (Privacy Policy & Terms) */
.legal-page {
    padding: 40px 0 80px;
}

.legal-header {
    padding: 40px 0 30px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.legal-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 12px;
}

.legal-meta {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.legal-meta span strong {
    color: var(--text-secondary);
}

.legal-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items: start;
}

.legal-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.sidebar-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-weight: 700;
}

.toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toc-list a {
    color: var(--text-secondary);
    font-size: 0.88rem;
    display: block;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.toc-list a:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.legal-content {
    color: #cbd5e1;
    font-size: 1rem;
    line-height: 1.75;
}

.legal-content section {
    padding: 0 0 40px;
    scroll-margin-top: calc(var(--header-h) + 24px);
    border-bottom: 1px solid rgba(35, 48, 68, 0.4);
    margin-bottom: 40px;
}

.legal-content section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.legal-content h2 {
    font-size: 1.55rem;
    margin-bottom: 16px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.legal-content h3 {
    font-size: 1.2rem;
    margin: 24px 0 12px;
    color: var(--text-primary);
}

.legal-content p {
    margin-bottom: 16px;
    color: #cbd5e1;
}

.legal-content ul, 
.legal-content ol {
    margin: 0 0 18px 24px;
    color: #cbd5e1;
}

.legal-content li {
    margin-bottom: 8px;
}

.callout {
    background: rgba(35, 48, 68, 0.5);
    border-left: 4px solid var(--accent-blue);
    padding: 16px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 20px 0;
}

.callout-success {
    background: rgba(16, 185, 129, 0.1);
    border-left-color: #10b981;
}

.callout p:last-child {
    margin-bottom: 0;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 20px 0;
}

.contact-card h4 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

/* Data Table */
.data-table-wrap {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
    text-align: left;
}

.data-table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 12px 16px;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

/* Footer */
footer.site-footer {
    margin-top: auto;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 48px 0 32px;
    font-size: 0.92rem;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

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

.footer-brand p {
    margin-top: 12px;
    font-size: 0.88rem;
}

.footer-nav {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.footer-col h5 {
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(35, 48, 68, 0.5);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 16px;
}

/* Responsive */
@media (max-width: 860px) {
    .legal-layout {
        grid-template-columns: 1fr;
    }
    .legal-sidebar {
        display: none;
    }
    .privacy-banner {
        flex-direction: column;
        text-align: center;
    }
    nav.main-nav {
        gap: 16px;
    }
}

@media (max-width: 600px) {
    header.site-header {
        height: auto;
        padding: 14px 0;
    }
    .nav-wrap {
        flex-direction: column;
        gap: 14px;
    }
    .hero-section {
        padding: 40px 0;
    }
}