/* =============================================
   WIREGUARD TUTOR — MAIN STYLESHEET
   ============================================= */

:root {
    --bg: #0d1117;
    --bg2: #161b22;
    --bg3: #21262d;
    --bg4: rgba(255,255,255,0.04);
    --border: #30363d;
    --text: #e6edf3;
    --text2: #8b949e;
    --text3: #6e7681;
    --accent: #88B04B;
    --accent2: #4ecdc4;
    --accent-glow: rgba(136, 176, 75, 0.15);
    --red: #ff6b6b;
    --yellow: #ffd93d;
    --purple: #a78bfa;
    --blue: #58a6ff;
    --nav-h: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --glass-bg: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
    --glass-border: rgba(255,255,255,0.12);
    --glass-highlight: rgba(255,255,255,0.18);
    --glass-shadow: 0 20px 60px rgba(0,0,0,0.22);
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg: #f8f9fa;
    --bg2: #ffffff;
    --bg3: #f1f3f5;
    --bg4: rgba(255,255,255,0.7);
    --border: #dee2e6;
    --text: #1a1a2e;
    --text2: #495057;
    --text3: #868e96;
    --accent-glow: rgba(136, 176, 75, 0.1);
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --glass-bg: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(255,255,255,0.68));
    --glass-border: rgba(255,255,255,0.72);
    --glass-highlight: rgba(255,255,255,0.95);
    --glass-shadow: 0 20px 40px rgba(61, 76, 104, 0.10);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background:
        radial-gradient(circle at top right, rgba(78,205,196,0.12), transparent 28%),
        radial-gradient(circle at bottom left, rgba(136,176,75,0.10), transparent 26%),
        linear-gradient(180deg, var(--bg) 0%, #0a0f14 100%);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
    position: relative;
}

[data-theme="light"] body {
    background:
        radial-gradient(circle at top right, rgba(78,205,196,0.14), transparent 30%),
        radial-gradient(circle at bottom left, rgba(136,176,75,0.12), transparent 26%),
        linear-gradient(180deg, #f8f9fa 0%, #edf2f7 100%);
}

body::before,
body::after {
    content: '';
    position: fixed;
    width: 34rem;
    height: 34rem;
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    filter: blur(90px);
    opacity: 0.18;
    animation: ambient-drift 18s ease-in-out infinite;
}

body::before {
    top: -10rem;
    right: -8rem;
    background: radial-gradient(circle, rgba(78,205,196,0.45), transparent 70%);
}

body::after {
    left: -10rem;
    bottom: -12rem;
    background: radial-gradient(circle, rgba(136,176,75,0.4), transparent 70%);
    animation-direction: reverse;
    animation-duration: 22s;
}

main {
    position: relative;
    isolation: isolate;
}

@keyframes ambient-drift {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(0, 24px, 0) scale(1.08); }
}

@keyframes glass-sheen {
    0% { transform: translateX(-120%) skewX(-18deg); opacity: 0; }
    15% { opacity: 0.45; }
    40%, 100% { transform: translateX(180%) skewX(-18deg); opacity: 0; }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes grid-drift {
    0% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(-12px, 10px, 0); }
    100% { transform: translate3d(0, 0, 0); }
}

/* =============================================
   SCROLLBAR
   ============================================= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* =============================================
   NAVBAR
   ============================================= */
.navbar {
    position: sticky; top: 0; z-index: 100;
    background: linear-gradient(180deg, rgba(13, 17, 23, 0.78), rgba(13, 17, 23, 0.55));
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    height: var(--nav-h);
    transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
    box-shadow: 0 8px 30px rgba(0,0,0,0.18);
}
[data-theme="light"] .navbar {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.68));
}
.navbar.scrolled {
    box-shadow: 0 14px 40px rgba(0,0,0,0.18);
    border-bottom-color: rgba(255,255,255,0.14);
}
.nav-container {
    max-width: 1200px; margin: 0 auto;
    height: 100%; padding: 0 24px;
    display: flex; align-items: center; gap: 8px;
}
.nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.1rem; font-weight: 700;
    color: var(--text); text-decoration: none;
    margin-right: auto; white-space: nowrap;
}
.nav-logo svg { flex-shrink: 0; }
.logo-accent { color: var(--accent); }
.nav-links {
    display: flex; align-items: center; gap: 4px;
}
.nav-link {
    display: flex; align-items: center; gap: 6px;
    padding: 6px 12px; border-radius: var(--radius-sm);
    font-size: 0.875rem; font-weight: 500;
    color: var(--text2); text-decoration: none;
    transition: all var(--transition); white-space: nowrap;
    position: relative;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.08); }
.nav-link.active { color: var(--accent); background: rgba(136,176,75,0.14); box-shadow: inset 0 1px 0 rgba(255,255,255,0.08); }
.nav-link svg {
    opacity: 0.7;
    flex-shrink: 0;
    display: block;
    width: 16px;
    height: 16px;
}
.nav-link:hover svg, .nav-link.active svg { opacity: 1; }

.theme-toggle {
    width: 36px; height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.04);
    color: var(--text2);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition); flex-shrink: 0;
}
.theme-toggle:hover { color: var(--text); background: rgba(255,255,255,0.10); transform: translateY(-1px); }
[data-theme="dark"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: none; }

.nav-burger {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-burger span {
    width: 22px; height: 2px;
    background: var(--text2); border-radius: 2px;
    transition: var(--transition);
}

.nav-mobile {
    display: none;
    padding: 16px 24px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 4px;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link { justify-content: flex-start; }

/* =============================================
   CONTAINER
   ============================================= */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* =============================================
   HERO
   ============================================= */
.hero {
    position: relative; overflow: hidden;
    min-height: calc(100vh - var(--nav-h));
    display: flex; align-items: center;
}
.hero-bg {
    position: absolute; inset: 0; pointer-events: none;
    overflow: hidden;
}
.hero-orb {
    position: absolute; border-radius: 50%;
    filter: blur(80px); opacity: 0.15;
}
.hero-orb-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    top: -200px; right: -100px;
    animation: float 8s ease-in-out infinite;
}
.hero-orb-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, var(--accent2), transparent 70%);
    bottom: -100px; left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}
.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(136,176,75,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(136,176,75,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-drift 18s linear infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-container {
    position: relative; z-index: 2;
    max-width: 1200px; margin: 0 auto; padding: 80px 24px;
    flex: 1;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: 100px;
    border: 1px solid rgba(136,176,75,0.3);
    background: linear-gradient(180deg, rgba(136,176,75,0.12), rgba(255,255,255,0.04));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
    font-size: 0.8rem; font-weight: 500;
    color: var(--accent); margin-bottom: 24px;
    animation: fade-up 0.8s both;
}
.badge-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900; line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    animation: fade-up 0.8s 0.08s both;
}
.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.1rem; color: var(--text2);
    max-width: 560px; margin-bottom: 40px; line-height: 1.7;
    animation: fade-up 0.8s 0.16s both;
}
.hero-actions {
    display: flex; align-items: center; gap: 16px;
    flex-wrap: wrap; margin-bottom: 56px;
    animation: fade-up 0.8s 0.24s both;
}
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius);
    font-size: 0.95rem; font-weight: 600;
    text-decoration: none; transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #6fa136);
    color: white;
    box-shadow: 0 4px 20px rgba(136,176,75,0.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(136,176,75,0.45);
}
.btn-ghost {
    color: var(--text2); border: 1px solid var(--border);
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.btn-ghost:hover { color: var(--text); background: rgba(255,255,255,0.10); border-color: var(--glass-border); transform: translateY(-2px); }

.hero-stats {
    display: flex; align-items: center; gap: 32px;
    flex-wrap: wrap;
    animation: fade-up 0.8s 0.32s both;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-num { font-size: 1.75rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 0.8rem; color: var(--text3); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

.hero-visual {
    position: absolute; right: 60px; top: 50%;
    transform: translateY(-50%);
    display: flex; align-items: center; justify-content: center;
    z-index: 1; pointer-events: none;
}
.shield-wrap { position: relative; width: 260px; height: 300px; animation: float 7s ease-in-out infinite; }
.shield-svg { width: 200px; height: 230px; }
.shield-ring {
    position: absolute; border-radius: 50%;
    border: 1px solid var(--accent);
    opacity: 0.08;
    animation: ring-pulse 3s ease-in-out infinite;
}
.shield-ring-1 {
    width: 280px; height: 280px;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.shield-ring-2 {
    width: 340px; height: 340px;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    animation-delay: 1.5s;
}
@keyframes ring-pulse {
    0%, 100% { opacity: 0.05; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.12; transform: translate(-50%, -50%) scale(1.04); }
}

/* =============================================
   SECTIONS
   ============================================= */
.section { padding: 96px 0; }
.section-alt { background: var(--bg2); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--accent-glow);
    border: 1px solid rgba(136,176,75,0.2);
    color: var(--accent); border-radius: 100px;
    font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
    text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800; letter-spacing: -0.02em; line-height: 1.2;
    margin-bottom: 12px;
}
.section-subtitle { color: var(--text2); font-size: 1.05rem; }

/* =============================================
   INFO GRID
   ============================================= */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.info-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}
.section-alt .info-card { background: var(--glass-bg); }
.info-card:hover {
    border-color: rgba(136,176,75,0.32);
    transform: translateY(-6px);
    box-shadow: 0 22px 60px rgba(136,176,75,0.12);
}
.info-icon {
    width: 52px; height: 52px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
}
.info-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.info-card p { color: var(--text2); font-size: 0.9rem; line-height: 1.7; }

/* =============================================
   PLATFORMS GRID
   ============================================= */
.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}
.platform-card {
    display: flex; align-items: center; gap: 16px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 20px 24px;
    text-decoration: none; color: var(--text);
    transition: all var(--transition);
    position: relative; overflow: hidden;
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    box-shadow: var(--glass-shadow);
}
.platform-card::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
    opacity: 0; transition: opacity var(--transition);
}
.platform-card:hover { border-color: rgba(136,176,75,0.34); transform: translateY(-6px); box-shadow: 0 24px 60px rgba(0,0,0,0.18); }
.platform-card:hover::before { opacity: 0.04; }
.platform-card:hover .platform-arrow { transform: translateX(6px); }

.info-card::after,
.platform-card::after,
.sidebar-card::after,
.step-card::after,
.troubleshoot-card::after,
.trouble-item::after,
.cta-card::after {
    content: '';
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.16), transparent 26%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.info-card:hover::after,
.platform-card:hover::after,
.sidebar-card:hover::after,
.step-card:hover::after,
.troubleshoot-card:hover::after,
.trouble-item:hover::after,
.cta-card:hover::after {
    opacity: 1;
}

.platform-icon {
    width: 48px; height: 48px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; position: relative; z-index: 1;
}
.platform-icon svg {
    width: 26px; height: 26px;
    display: block; flex-shrink: 0;
}
.platform-icon.android { background: rgba(61,220,132,0.12); color: #3ddc84; }
.platform-icon.ios { background: rgba(0,122,255,0.12); color: #007aff; }
.platform-icon.windows { background: rgba(0,120,212,0.12); color: #0078d4; }
.platform-icon.macos { background: rgba(150,150,150,0.12); color: #adb5bd; }
.platform-icon.linux { background: rgba(255,204,77,0.12); color: #ffcc4d; }

.platform-info { flex: 1; position: relative; z-index: 1; }
.platform-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 2px; }
.platform-info p { font-size: 0.82rem; color: var(--text3); }
.platform-badge {
    padding: 3px 10px; border-radius: 100px;
    font-size: 0.75rem; font-weight: 600;
    position: relative; z-index: 1;
}
.platform-badge.easy { background: rgba(136,176,75,0.15); color: var(--accent); }
.platform-badge.medium { background: rgba(78,205,196,0.15); color: var(--accent2); }
.platform-badge.advanced { background: rgba(255,204,77,0.15); color: #ffcc4d; }
.platform-arrow { color: var(--text3); transition: transform var(--transition); position: relative; z-index: 1; }

/* =============================================
   HOW IT WORKS
   ============================================= */
.how-flow {
    display: flex; align-items: flex-start; gap: 16px;
    margin-bottom: 56px; flex-wrap: wrap;
}
.how-step {
    flex: 1; min-width: 200px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--glass-shadow);
}
.how-num {
    width: 40px; height: 40px;
    background: var(--accent-glow); border: 1px solid rgba(136,176,75,0.3);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; font-weight: 800; color: var(--accent);
    margin-bottom: 12px;
}
.how-content h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.how-content p { color: var(--text2); font-size: 0.875rem; line-height: 1.7; }
.how-arrow {
    font-size: 1.5rem; color: var(--text3);
    align-self: center; flex-shrink: 0;
    padding-top: 12px;
}

/* Config Preview */
.config-preview {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.config-header {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 20px;
    background: var(--bg3); border-bottom: 1px solid var(--border);
}
.config-dots { display: flex; gap: 6px; }
.config-dots span { width: 12px; height: 12px; border-radius: 50%; }
.config-dots span:nth-child(1) { background: #ff5f57; }
.config-dots span:nth-child(2) { background: #fecb2e; }
.config-dots span:nth-child(3) { background: #29c941; }
.config-title { font-size: 0.85rem; color: var(--text3); font-family: 'JetBrains Mono', monospace; }
.config-code {
    padding: 24px 28px; margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem; line-height: 1.7;
    overflow-x: auto; color: var(--text);
}
.cfg-comment { color: var(--text3); font-style: italic; }
.cfg-section { color: var(--accent); font-weight: 700; }
.cfg-key { color: var(--blue); }
.cfg-value { color: #f9c74f; }

/* =============================================
   CTA SECTION
   ============================================= */
.cta-section { padding: 80px 0; }
.cta-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.03) 100%);
    border: 1px solid var(--glass-border);
    border-radius: 20px; padding: 60px;
    text-align: center;
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}
.cta-card:hover { transform: translateY(-4px); }
.cta-card h2 { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.cta-card p { color: var(--text2); margin-bottom: 36px; font-size: 1rem; }
.cta-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-btn {
    padding: 10px 22px; border-radius: var(--radius);
    font-size: 0.9rem; font-weight: 600;
    text-decoration: none; transition: all var(--transition);
}
.android-btn { background: rgba(61,220,132,0.15); color: #3ddc84; border: 1px solid rgba(61,220,132,0.3); }
.android-btn:hover { background: rgba(61,220,132,0.25); transform: translateY(-2px); }
.ios-btn { background: rgba(0,122,255,0.15); color: #007aff; border: 1px solid rgba(0,122,255,0.3); }
.ios-btn:hover { background: rgba(0,122,255,0.25); transform: translateY(-2px); }
.win-btn { background: rgba(0,120,212,0.15); color: #58a6ff; border: 1px solid rgba(0,120,212,0.3); }
.win-btn:hover { background: rgba(0,120,212,0.25); transform: translateY(-2px); }
.mac-btn { background: rgba(150,150,150,0.15); color: #adb5bd; border: 1px solid rgba(150,150,150,0.3); }
.mac-btn:hover { background: rgba(150,150,150,0.25); transform: translateY(-2px); }
.linux-btn { background: rgba(255,204,77,0.15); color: #ffcc4d; border: 1px solid rgba(255,204,77,0.3); }
.linux-btn:hover { background: rgba(255,204,77,0.25); transform: translateY(-2px); }

/* =============================================
   PAGE HERO (Sub-pages)
   ============================================= */
.page-hero {
    position: relative; overflow: hidden;
    padding: 56px 0 48px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}
.page-hero-bg {
    position: absolute; inset: 0;
    opacity: 0.04;
    animation: float 10s ease-in-out infinite;
}
.android-hero .page-hero-bg { background: radial-gradient(ellipse at right, #3ddc84, transparent 70%); }
.ios-hero .page-hero-bg { background: radial-gradient(ellipse at right, #007aff, transparent 70%); }
.windows-hero .page-hero-bg { background: radial-gradient(ellipse at right, #0078d4, transparent 70%); }
.macos-hero .page-hero-bg { background: radial-gradient(ellipse at right, #adb5bd, transparent 70%); }
.linux-hero .page-hero-bg { background: radial-gradient(ellipse at right, #ffcc4d, transparent 70%); }

.page-hero-content {
    display: flex; align-items: center; gap: 24px;
    position: relative; z-index: 1;
    animation: fade-up 0.7s both;
}
.platform-icon-large {
    width: 72px; height: 72px; border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.14), 0 20px 30px rgba(0,0,0,0.12);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.platform-icon-large svg {
    width: 38px !important; height: 38px !important;
    display: block; flex-shrink: 0;
    max-width: 38px; max-height: 38px;
}
.platform-icon-large.android { background: rgba(61,220,132,0.12); color: #3ddc84; }
.platform-icon-large.ios { background: rgba(0,122,255,0.12); color: #007aff; }
.platform-icon-large.windows { background: rgba(0,120,212,0.12); color: #0078d4; }
.platform-icon-large.macos { background: rgba(150,150,150,0.15); color: #adb5bd; }
.platform-icon-large.linux { background: rgba(255,204,77,0.12); color: #ffcc4d; }
.platform-icon-large svg { width: 38px; height: 38px; }
.page-tag {
    font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em;
    text-transform: uppercase; color: var(--text3);
    margin-bottom: 8px;
}
.page-hero h1 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px;
}
.page-hero p { color: var(--text2); font-size: 1rem; }

/* =============================================
   TUTORIAL LAYOUT
   ============================================= */
.tutorial-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 80px;
    align-items: start;
}
.tutorial-sidebar { position: sticky; top: 88px; }
.sidebar-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 20px;
    margin-bottom: 16px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}
.sidebar-card:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.18); }
.sidebar-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 14px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.05em; }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-link {
    display: block; padding: 8px 12px;
    color: var(--text2); text-decoration: none;
    border-radius: var(--radius-sm); font-size: 0.875rem;
    transition: all var(--transition); border-left: 2px solid transparent;
}
.sidebar-link:hover { color: var(--text); background: var(--bg3); }
.sidebar-link.active { color: var(--accent); border-left-color: var(--accent); background: var(--accent-glow); }
.info-box h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 12px; }
.info-box ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.info-box ul li { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text2); }
.info-box svg { color: var(--accent); flex-shrink: 0; }

/* =============================================
   STEP CARDS
   ============================================= */
.tutorial-content { display: flex; flex-direction: column; gap: 24px; }
.step-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); overflow: hidden;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: var(--glass-shadow);
    position: relative;
}
.step-card:hover { border-color: rgba(136,176,75,0.3); transform: translateY(-3px); box-shadow: 0 24px 50px rgba(0,0,0,0.18); }
.step-header {
    display: flex; align-items: center; gap: 20px;
    padding: 24px 28px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
}
.step-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.4rem; font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; line-height: 1;
}
.step-header h2 { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.step-time {
    font-size: 0.78rem; color: var(--text3);
    padding: 2px 10px; border-radius: 100px;
    background: var(--bg); border: 1px solid var(--border);
    font-weight: 500;
}
.step-time.badge-easy { background: rgba(136,176,75,0.1); color: var(--accent); border-color: rgba(136,176,75,0.2); }

.step-body {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 32px; padding: 28px;
    align-items: center;
}
.step-body.reverse .step-visual { order: 2; }
.step-body.reverse .step-instructions { order: 1; }
.step-body.column { display: block; }
.full-width { width: 100%; }

/* =============================================
   STEP INSTRUCTIONS
   ============================================= */
.step-instructions p {
    color: var(--text2); font-size: 0.95rem;
    line-height: 1.7; margin-bottom: 20px;
}
.instruction-steps { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.inst-step {
    display: flex; align-items: flex-start; gap: 12px;
    padding: 10px 14px;
    background: rgba(255,255,255,0.04); border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.08);
    font-size: 0.875rem; line-height: 1.5;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.inst-num {
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--accent-glow); border: 1px solid rgba(136,176,75,0.3);
    color: var(--accent); font-size: 0.75rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.inst-step code {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 4px; padding: 1px 6px;
    font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
    color: var(--accent2);
}

/* =============================================
   NOTES & ALERTS
   ============================================= */
.tip-box, .warning-box, .success-box, .info-banner {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 14px 16px; border-radius: var(--radius-sm);
    font-size: 0.875rem; line-height: 1.6;
    margin-top: 16px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}
.tip-box { background: rgba(88,166,255,0.08); border: 1px solid rgba(88,166,255,0.2); color: var(--blue); }
.warning-box { background: rgba(255,204,77,0.08); border: 1px solid rgba(255,204,77,0.25); color: #e8ab00; }
.success-box { background: rgba(136,176,75,0.1); border: 1px solid rgba(136,176,75,0.25); color: var(--accent); }
.info-banner { background: rgba(78,205,196,0.08); border: 1px solid rgba(78,205,196,0.2); color: var(--accent2); margin-bottom: 20px; margin-top: 0; }
.tip-box svg, .warning-box svg, .success-box svg, .info-banner svg { flex-shrink: 0; margin-top: 2px; }

/* =============================================
   STORE LINKS
   ============================================= */
.store-link {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--radius);
    font-size: 0.875rem; font-weight: 600;
    text-decoration: none; margin-top: 4px;
    transition: all var(--transition);
    background: rgba(61,220,132,0.1); color: #3ddc84;
    border: 1px solid rgba(61,220,132,0.25);
}
.store-link:hover { background: rgba(61,220,132,0.18); transform: translateY(-1px); }
.ios-store-link { background: rgba(0,122,255,0.1); color: #007aff; border-color: rgba(0,122,255,0.25); }
.ios-store-link:hover { background: rgba(0,122,255,0.18); }
.windows-link { background: rgba(88,166,255,0.1); color: var(--blue); border-color: rgba(88,166,255,0.25); }
.windows-link:hover { background: rgba(88,166,255,0.18); }
.macos-link { background: rgba(150,150,150,0.1); color: #adb5bd; border-color: rgba(150,150,150,0.25); }
.macos-link:hover { background: rgba(150,150,150,0.18); }

/* =============================================
   CODE BLOCKS
   ============================================= */
.code-block {
    background: linear-gradient(180deg, rgba(7,10,14,0.84), rgba(7,10,14,0.68)); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius); overflow: hidden;
    margin-bottom: 16px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--glass-shadow);
}

[data-theme="light"] .code-block {
    background: linear-gradient(180deg, rgba(255,255,255,0.88), rgba(248,249,250,0.72));
}
.code-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 16px;
    background: var(--bg3); border-bottom: 1px solid var(--border);
    font-size: 0.8rem; color: var(--text3); font-family: 'JetBrains Mono', monospace;
}
.copy-btn {
    background: var(--bg2); border: 1px solid var(--border);
    color: var(--text2); padding: 3px 10px;
    border-radius: 4px; font-size: 0.75rem;
    cursor: pointer; transition: all var(--transition);
    font-family: 'Inter', sans-serif; font-weight: 500;
}
.copy-btn:hover { color: var(--text); background: var(--bg3); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); }
.code-block pre {
    padding: 20px 20px; margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem; line-height: 1.7;
    overflow-x: auto; color: var(--text);
    white-space: pre;
}
.cmd-comment { color: var(--text3); font-style: italic; }
.green-text { color: var(--accent); }

/* Terminal Output */
.terminal-output {
    background: #0d1117; border: 1px solid #30363d;
    border-radius: var(--radius); overflow: hidden; margin-top: 16px;
}
.term-header {
    padding: 10px 16px; background: #161b22;
    border-bottom: 1px solid #30363d;
    font-size: 0.8rem; color: #6e7681;
    font-family: 'JetBrains Mono', monospace;
}
.term-body {
    padding: 16px 20px; margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem; line-height: 1.7;
    color: #c9d1d9; overflow-x: auto;
}

/* Terminal mockup (Linux page) */
.terminal-small {
    background: linear-gradient(180deg, rgba(7,10,14,0.88), rgba(7,10,14,0.72)); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--glass-shadow);
}
.terminal-header {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 16px; background: #161b22;
    border-bottom: 1px solid #30363d;
    font-size: 0.8rem; color: #6e7681;
}
.terminal-body {
    padding: 16px 20px;
    font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.9;
}
.t-line { display: flex; gap: 8px; }
.t-prompt { color: var(--accent); font-weight: 700; }
.t-line.muted { color: var(--text3); }
.t-line.green-text { color: var(--accent); }

/* Distro tabs */
.distro-tabs {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin-bottom: 16px;
}
.dtab {
    padding: 7px 16px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: transparent;
    color: var(--text2); font-size: 0.85rem; font-weight: 500;
    cursor: pointer; transition: all var(--transition);
    font-family: 'Inter', sans-serif;
}
.dtab:hover { color: var(--text); border-color: var(--text3); }
.dtab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-glow); }
.dtab-content { display: none; }
.dtab-content.active { display: block; }

/* =============================================
   VISUAL MOCKUPS
   ============================================= */
.step-visual {
    display: flex; align-items: center; justify-content: center;
}

/* Phone Frame */
.phone-frame {
    width: 200px; border-radius: 30px;
    border: 2px solid var(--border);
    background: var(--bg3); padding: 20px 12px;
    box-shadow: var(--shadow);
}
.phone-screen { border-radius: 16px; overflow: hidden; background: var(--bg); min-height: 120px; }
.ios-frame { border-radius: 38px; border-color: #444; }

/* App store card */
.app-store-card {
    display: flex; align-items: center; gap: 10px;
    padding: 12px; background: var(--bg2);
}
.ios-style .app-store-card { flex-wrap: wrap; }
.app-icon.wg-icon {
    width: 44px; height: 44px; border-radius: 10px;
    background: var(--bg3);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.app-info { flex: 1; min-width: 0; }
.app-name {
    font-size: 0.78rem;
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.app-dev { font-size: 0.68rem; color: var(--text3); }
.app-rating { font-size: 0.68rem; color: #ffd93d; }
.install-btn {
    padding: 4px 10px; border-radius: 100px;
    background: rgba(136,176,75,0.15); color: var(--accent);
    font-size: 0.7rem; font-weight: 700; white-space: nowrap;
}
.ios-btn-style { background: rgba(0,122,255,0.15); color: #007aff; }

/* Screen mockup */
.screen-mockup {
    width: 220px; border-radius: var(--radius);
    border: 1px solid var(--border); overflow: hidden;
    box-shadow: var(--shadow);
}
.mockup-header {
    padding: 10px 14px; background: var(--bg3);
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem; font-weight: 600;
}
.ios-header { display: flex; flex-direction: column; gap: 4px; }
.ios-dots { width: 30px; height: 6px; background: var(--border); border-radius: 3px; margin-bottom: 2px; }
.mockup-body.empty-state {
    padding: 30px 16px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.mockup-body.empty-state p { font-size: 0.78rem; color: var(--text3); }
.add-fab {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--accent); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; font-weight: 300;
}
.ios-add-btn {
    padding: 8px 16px; border-radius: var(--radius-sm);
    background: rgba(0,122,255,0.15); color: #007aff;
    font-size: 0.75rem; font-weight: 600; margin-top: 4px;
}
.ios-screen .mockup-header { background: var(--bg2); }

/* QR Demo */
.qr-demo { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.qr-frame {
    padding: 12px; background: white;
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.qr-frame.small { padding: 8px; }
.scan-animation {
    width: 144px; height: 2px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    animation: scan 2s ease-in-out infinite;
}
@keyframes scan { 0%, 100% { opacity: 0; transform: translateY(-60px); } 50% { opacity: 1; } }
.qr-label { font-size: 0.75rem; color: var(--text3); text-align: center; }

/* Camera frame (iOS) */
.camera-frame {
    width: 200px; height: 180px;
    background: var(--bg); border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
    border: 2px solid var(--bg3);
}
.camera-corners {
    position: absolute; inset: 12px;
    border: 2px solid transparent;
    border-image: none;
    background: linear-gradient(var(--bg), var(--bg)) padding-box,
                linear-gradient(to bottom right, var(--accent), transparent, var(--accent2)) border-box;
    border-radius: 8px;
}
.scan-line {
    position: absolute; left: 20px; right: 20px; height: 2px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
    animation: scanline 2s ease-in-out infinite;
}
@keyframes scanline { 0%, 100% { top: 20px; opacity: 0.8; } 50% { top: 80%; opacity: 1; } }

/* File mockup */
.file-mockup {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 28px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius);
}
.file-name { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; font-weight: 600; }
.file-size { font-size: 0.8rem; color: var(--text3); }

/* Toggle demo */
.toggle-demo {
    display: flex; flex-direction: column; gap: 12px;
    width: 220px;
}
.toggle-card {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 16px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius);
    transition: all var(--transition);
}
.toggle-card.active { border-color: var(--accent); background: var(--accent-glow); }
.tunnel-name { font-size: 0.85rem; font-weight: 600; }
.tunnel-addr { font-size: 0.72rem; color: var(--text3); font-family: 'JetBrains Mono', monospace; }
.toggle-switch {
    width: 44px; height: 24px; border-radius: 12px;
    background: var(--border); position: relative; cursor: pointer;
    transition: background var(--transition);
    user-select: none; -webkit-user-select: none;
}
.toggle-switch:hover { opacity: 0.85; }
.toggle-switch.active { background: var(--accent); }
.toggle-thumb {
    position: absolute; width: 20px; height: 20px;
    border-radius: 50%; background: white; top: 2px; left: 2px;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 6px rgba(0,0,0,0.35);
    pointer-events: none;
}
.toggle-switch.active .toggle-thumb { transform: translateX(20px); }

.vpn-status {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.82rem; color: var(--text3); padding: 0 4px;
}
.vpn-status.active { color: var(--accent); }
.vpn-status .status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--border);
}
.vpn-status.active .status-dot {
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent);
    animation: pulse 2s ease-in-out infinite;
}

/* iOS settings mock */
.ios-settings-mock {
    width: 220px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden;
}
.settings-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 16px; border-bottom: 1px solid var(--border);
    font-size: 0.9rem; font-weight: 500;
}
.settings-status { padding: 10px 16px; font-size: 0.78rem; color: var(--accent); transition: color var(--transition); }
.ios-toggle {
    width: 44px; height: 26px; border-radius: 13px;
    background: var(--border); position: relative;
    cursor: pointer; transition: background var(--transition);
    user-select: none; -webkit-user-select: none;
}
.ios-toggle:hover { opacity: 0.85; }
.ios-toggle.active { background: #007aff; }
.ios-toggle-thumb {
    position: absolute; width: 22px; height: 22px;
    border-radius: 50%; background: white; top: 2px; left: 2px;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 6px rgba(0,0,0,0.35);
    pointer-events: none;
}
.ios-toggle.active .ios-toggle-thumb { transform: translateX(18px); }

/* AirDrop visual */
.airdrop-visual {
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    padding: 24px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius);
}
.airdrop-icon { animation: float 4s ease-in-out infinite; }
.airdrop-label { font-size: 0.82rem; color: var(--text3); }
.file-chip {
    padding: 6px 16px; border-radius: 100px;
    background: var(--bg2); border: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace; font-size: 0.8rem;
    color: var(--accent2);
}

/* Browser mockup */
.browser-mockup {
    width: 280px; border-radius: var(--radius);
    border: 1px solid var(--border); overflow: hidden;
    box-shadow: var(--shadow);
}
.browser-bar {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; background: var(--bg3);
    border-bottom: 1px solid var(--border);
}
.browser-dots { display: flex; gap: 4px; }
.browser-dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.browser-url {
    flex: 1; padding: 4px 10px;
    background: var(--bg2); border: 1px solid var(--border);
    border-radius: 100px; font-size: 0.72rem;
    color: var(--text3); font-family: 'JetBrains Mono', monospace;
}
.browser-content { padding: 16px; }
.download-card {
    display: flex; align-items: center; gap: 12px;
    padding: 12px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.dl-name { font-size: 0.8rem; font-weight: 600; }
.dl-size { font-size: 0.7rem; color: var(--text3); }
.dl-btn {
    padding: 5px 14px; border-radius: 100px;
    background: rgba(0,120,212,0.15); color: #0078d4;
    font-size: 0.75rem; font-weight: 600; white-space: nowrap;
}

/* Installer mockup */
.installer-mockup {
    width: 260px; border-radius: var(--radius);
    border: 1px solid var(--border); overflow: hidden;
    box-shadow: var(--shadow);
}
.installer-header {
    padding: 10px 14px; background: var(--bg3);
    border-bottom: 1px solid var(--border);
    font-size: 0.8rem; color: var(--text3);
}
.installer-body {
    padding: 24px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.wg-logo-install { animation: float 4s ease-in-out infinite; }
.installer-text { font-size: 0.85rem; color: var(--text2); }
.progress-bar {
    width: 100%; height: 4px;
    background: var(--border); border-radius: 2px; overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(to right, var(--accent), var(--accent2));
    border-radius: 2px; animation: progress 3s ease-in-out infinite alternate;
}
@keyframes progress { 0% { width: 30%; } 100% { width: 90%; } }
.installer-btns { display: flex; gap: 8px; }
.win-btn {
    padding: 6px 20px; border-radius: 4px;
    background: #0078d4; color: white;
    font-size: 0.82rem; font-weight: 600;
}

/* WireGuard App mockup */
.wg-app-mockup {
    width: 280px; height: 160px;
    border-radius: var(--radius); border: 1px solid var(--border);
    overflow: hidden; box-shadow: var(--shadow);
}
.wg-app-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 14px; background: var(--bg3);
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem; font-weight: 600;
}
.win-controls { display: flex; gap: 4px; }
.win-controls span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.wg-app-body { display: flex; height: calc(100% - 40px); }
.wg-sidebar {
    width: 120px; padding: 10px;
    border-right: 1px solid var(--border);
    background: var(--bg2);
}
.wg-add-btn {
    font-size: 0.7rem; padding: 6px 8px;
    background: var(--accent-glow); color: var(--accent);
    border-radius: 4px; font-weight: 600; text-align: center;
}
.wg-main { flex: 1; padding: 12px; display: flex; align-items: center; justify-content: center; }
.wg-placeholder { font-size: 0.72rem; color: var(--text3); text-align: center; }

/* Connected mockup */
.wg-connected-mock {
    width: 260px; background: var(--bg3);
    border: 1px solid var(--accent); border-radius: var(--radius);
    overflow: hidden; box-shadow: 0 0 20px rgba(136,176,75,0.1);
}
.conn-header { padding: 12px 16px; background: var(--accent-glow); border-bottom: 1px solid rgba(136,176,75,0.2); }
.tunnel-row { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; }
.tunnel-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.tunnel-dot.active { background: var(--accent); box-shadow: 0 0 6px var(--accent); animation: pulse 2s infinite; }
.conn-stats { padding: 14px 16px; display: flex; flex-direction: column; gap: 6px; }
.stat-row { display: flex; justify-content: space-between; font-size: 0.75rem; }
.stat-row span:first-child { color: var(--text3); }
.green { color: var(--accent); font-family: 'JetBrains Mono', monospace; }
.deactivate-btn {
    margin: 0 16px 14px; padding: 7px;
    text-align: center; border-radius: var(--radius-sm);
    background: rgba(255,107,107,0.1); color: var(--red);
    font-size: 0.78rem; font-weight: 600;
}

/* Autostart visual */
.autostart-visual {
    padding: 24px; background: var(--bg3);
    border: 1px solid var(--border); border-radius: var(--radius);
    display: flex; flex-direction: column; gap: 14px;
    width: 240px;
}
.checkbox-row { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; }
.checkbox {
    width: 20px; height: 20px; border-radius: 4px;
    border: 2px solid var(--border); background: var(--bg2);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; color: white;
}
.checkbox.active { background: var(--accent); border-color: var(--accent); }
.service-info { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--accent); }

/* Mac window */
.mac-window {
    border-radius: 12px; overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    width: 280px;
}
.mac-window.small { width: 240px; }
.mac-titlebar {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    background: rgba(60,60,60,0.9);
}
[data-theme="light"] .mac-titlebar { background: #e8e8e8; }
.mac-dots { display: flex; gap: 6px; }
.mac-dots span { width: 12px; height: 12px; border-radius: 50%; }
.mac-dots .red { background: #ff5f57; }
.mac-dots .yellow { background: #fecb2e; }
.mac-dots .green { background: #29c941; }
.mac-title { font-size: 0.82rem; color: rgba(255,255,255,0.6); flex: 1; text-align: center; font-weight: 500; }
[data-theme="light"] .mac-title { color: rgba(0,0,0,0.5); }
.mac-content { padding: 12px; background: var(--bg); }
.mac-app-row { display: flex; align-items: center; gap: 10px; }
.mac-app-icon {
    width: 50px; height: 50px; border-radius: 12px;
    background: var(--bg3); display: flex; align-items: center; justify-content: center;
}
.mac-app-text { flex: 1; }
.mac-app-name { font-size: 0.85rem; font-weight: 600; }
.mac-app-cat { font-size: 0.72rem; color: var(--text3); }
.mac-get-btn {
    padding: 5px 14px; border-radius: 100px;
    background: rgba(0,122,255,0.15); color: #007aff;
    font-size: 0.75rem; font-weight: 600;
}
.mac-wg-empty {
    padding: 24px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.mac-wg-empty p { font-size: 0.8rem; color: var(--text3); }
.mac-add-tunnel {
    padding: 8px 16px; border-radius: 6px;
    background: rgba(0,122,255,0.12); color: #007aff;
    font-size: 0.75rem; font-weight: 600;
}
.mac-tunnel-list { display: flex; flex-direction: column; gap: 4px; }
.mac-tunnel-item {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 10px; border-radius: 6px;
    font-size: 0.82rem; font-weight: 500;
}
.mac-tunnel-item.active { background: rgba(136,176,75,0.1); }
.tunnel-indicator { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.mac-badge {
    margin-left: auto; font-size: 0.68rem; padding: 2px 8px;
    border-radius: 100px; background: var(--accent-glow); color: var(--accent);
}

/* Menubar mockup */
.menubar-mockup { width: 280px; }
.menubar-icons {
    display: flex; justify-content: flex-end; align-items: center; gap: 12px;
    padding: 6px 12px; background: rgba(0,0,0,0.8);
    border-radius: 8px 8px 0 0; font-size: 0.9rem;
}
[data-theme="light"] .menubar-icons { background: rgba(220,220,220,0.95); }
.wg-menubar-icon { cursor: pointer; filter: grayscale(0.5); }
.wg-menubar-icon.active { filter: none; }
.menubar-dropdown {
    background: rgba(30,30,30,0.95); backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 0 0 8px 8px; padding: 6px;
}
[data-theme="light"] .menubar-dropdown { background: rgba(255,255,255,0.97); border-color: rgba(0,0,0,0.12); }
.mb-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 7px 10px; border-radius: 5px;
    font-size: 0.82rem; color: rgba(255,255,255,0.85);
}
[data-theme="light"] .mb-item { color: rgba(0,0,0,0.8); }
.mb-item.small { font-size: 0.75rem; color: rgba(255,255,255,0.5); }
[data-theme="light"] .mb-item.small { color: rgba(0,0,0,0.4); }
.mb-separator { height: 1px; background: rgba(255,255,255,0.1); margin: 4px 10px; }
[data-theme="light"] .mb-separator { background: rgba(0,0,0,0.1); }
.mb-toggle {
    width: 36px; height: 20px; border-radius: 10px;
    background: rgba(255,255,255,0.2); position: relative;
    cursor: pointer; transition: background var(--transition);
    user-select: none; -webkit-user-select: none;
}
.mb-toggle:hover { opacity: 0.8; }
.mb-toggle.active { background: var(--accent); }
.mb-toggle::after {
    content: ''; position: absolute;
    width: 16px; height: 16px; border-radius: 50%;
    background: white; top: 2px; left: 2px;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.mb-toggle.active::after { transform: translateX(16px); }

/* =============================================
   TROUBLESHOOT
   ============================================= */
.troubleshoot-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 28px;
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}
.troubleshoot-card h2 {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.15rem; margin-bottom: 24px;
    color: var(--text);
}
.trouble-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.trouble-item {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.10);
    border-radius: var(--radius-sm); padding: 16px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.trouble-item:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.18);
    box-shadow: 0 18px 36px rgba(0,0,0,0.12);
}
.trouble-item h4 { font-size: 0.875rem; font-weight: 700; margin-bottom: 8px; color: var(--yellow); }
.trouble-item p { font-size: 0.825rem; color: var(--text2); line-height: 1.6; }
.trouble-item code {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: 3px; padding: 1px 5px;
    font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
    color: var(--accent2);
}

/* =============================================
   NAV BUTTONS (bottom of page)
   ============================================= */
.nav-buttons { display: flex; justify-content: space-between; padding-top: 8px; }
.nav-btn {
    padding: 10px 22px; border-radius: var(--radius);
    border: 1px solid var(--glass-border);
    color: var(--text2); text-decoration: none; font-size: 0.875rem;
    font-weight: 600; transition: all var(--transition);
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.nav-btn:hover { color: var(--text); border-color: var(--accent); background: var(--accent-glow); transform: translateY(-2px); }

/* =============================================
   TEXT HELPERS
   ============================================= */
.text-green { color: var(--accent); }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    border-top: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
    padding: 40px 0;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}
.footer-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.footer-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.95rem; color: var(--text2);
}
.footer-logo strong { color: var(--text); }
.footer-text { font-size: 0.85rem; color: var(--text3); }
.footer-copy { font-size: 0.8rem; color: var(--text3); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .tutorial-layout { grid-template-columns: 220px 1fr; }
    .hero-visual { display: none; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-burger { display: flex; }
    .tutorial-layout { grid-template-columns: 1fr; }
    .tutorial-sidebar { position: static; }
    .step-body { grid-template-columns: 1fr; }
    .step-body.reverse .step-visual { order: unset; }
    .step-body.reverse .step-instructions { order: unset; }
    .step-visual { display: flex; justify-content: center; }
    .how-flow { flex-direction: column; }
    .how-arrow { transform: rotate(90deg); align-self: center; }
    .hero-stats { gap: 20px; }
    .cta-card { padding: 36px 24px; }
    .platforms-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr 1fr; }
    .page-hero-content { flex-direction: column; align-items: flex-start; }
    .nav-buttons { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
    .section { padding: 60px 0; }
    .hero-container { padding: 60px 24px; }
    .info-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 2.2rem; }
    .section-title { font-size: 1.8rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}