/* ForgeD VTT Website Master Stylesheet */
/* Matching VTT UI aesthetics: Dark Glassmorphism, Gold/Blue Accents, Tactical Grid */

:root {
    --font-primary: 'Inter', 'Open Sans', system-ui, -apple-system, sans-serif;
    --font-heading: 'Cinzel', serif;
    --font-code: 'Consolas', 'Courier New', monospace;

    /* Color Palette */
    --bg-dark: #090d16;
    --bg-card: rgba(16, 21, 33, 0.82);
    --bg-card-hover: rgba(24, 32, 50, 0.9);
    --bg-glass-input: rgba(8, 12, 20, 0.85);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-gold: rgba(223, 160, 30, 0.35);
    --border-gold-glow: rgba(223, 160, 30, 0.65);
    --border-blue: rgba(56, 189, 248, 0.35);
    --border-blue-glow: rgba(56, 189, 248, 0.65);
    
    --color-gold: #dfa01e;
    --color-gold-bright: #f5c453;
    --color-vtt-blue: #38bdf8;
    --color-vtt-blue-bright: #7dd3fc;
    --color-vtt-blue-glow: rgba(56, 189, 248, 0.3);
    --color-green-stone: #6fa247;
    --color-green-bright: #85c35b;
    --color-red-crimson: #dc2626;
    --color-steel: #94a3b8;
    --color-steel-light: #cbd5e1;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --shadow-glow: 0 10px 40px rgba(0, 0, 0, 0.7), 0 0 30px rgba(223, 160, 30, 0.15);
    --shadow-blue-glow: 0 10px 40px rgba(0, 0, 0, 0.7), 0 0 30px rgba(56, 189, 248, 0.2);
    --shadow-logo: 0 0 35px rgba(245, 196, 83, 0.25), 0 0 20px rgba(56, 189, 248, 0.2);
    --glass-blur: blur(16px);
    --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* Tactical Canvas Grid & Ambient Glow Background */
.bg-tactical-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridPulse 20s ease-in-out infinite alternate;
}

.bg-ambient-lights {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: 
        radial-gradient(circle at 50% 12%, rgba(223, 160, 30, 0.14) 0%, transparent 55%),
        radial-gradient(circle at 85% 65%, rgba(56, 189, 248, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 15% 75%, rgba(111, 162, 71, 0.1) 0%, transparent 50%);
}

@keyframes gridPulse {
    0% { background-position: 0 0; }
    100% { background-position: 20px 20px; }
}

/* Glassmorphism Container Utility */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-gold);
    border-radius: 16px;
    box-shadow: var(--shadow-glow);
}

/* Top Sticky Navigation Bar */
.navbar-vtt {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 5%;
    background: rgba(9, 13, 22, 0.92);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-gold);
    gap: 16px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-brand-logo {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px rgba(223, 160, 30, 0.45));
    transition: transform 0.3s ease;
}

.nav-brand:hover .nav-brand-logo {
    transform: scale(1.06);
}

.nav-brand-text-logo {
    height: 38px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.6));
    transition: transform 0.25s ease;
}

.nav-brand:hover .nav-brand-text-logo {
    transform: scale(1.04);
}

.nav-brand-text {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 900;
    letter-spacing: 1.2px;
    display: inline-flex;
    align-items: center;
}

/* Specific ForgeD VTT Branding Colors: Forge (Gold), D (White), VTT (Blue) */
.brand-forge {
    color: var(--color-gold-bright);
    text-shadow: 0 0 14px rgba(245, 196, 83, 0.45);
}

.brand-d {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    margin-right: 4px;
}

.brand-vtt {
    color: var(--color-vtt-blue);
    text-shadow: 0 0 14px rgba(56, 189, 248, 0.55);
}

.nav-tabs {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0, 0, 0, 0.45);
    padding: 4px 6px;
    border-radius: 30px;
    border: 1px solid var(--border-subtle);
}

.nav-tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
}

.nav-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.nav-tab-btn.active {
    color: #090d16;
    background: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 100%);
    font-weight: 800;
    box-shadow: 0 2px 10px rgba(223, 160, 30, 0.45);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn-vtt-gold {
    background: linear-gradient(135deg, var(--color-gold) 0%, #b87c12 100%);
    color: #090d16;
    font-family: var(--font-heading);
    font-weight: 800;
    border: none;
    padding: 9px 18px;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.88rem;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
    box-shadow: 0 4px 15px rgba(223, 160, 30, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-vtt-gold:hover {
    background: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(223, 160, 30, 0.5);
    color: #000;
}

.btn-vtt-blue {
    background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    border: 1px solid var(--color-vtt-blue);
    padding: 9px 18px;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.88rem;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-vtt-blue:hover {
    background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.45);
    color: #090d16;
}

.btn-vtt-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-gold);
    padding: 9px 16px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-vtt-outline:hover {
    border-color: var(--color-gold);
    background: rgba(223, 160, 30, 0.14);
    color: var(--color-gold-bright);
}

/* Mobile Hamburger Toggle Button */
.navbar-mobile-toggle {
    display: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-gold);
    color: var(--color-gold-bright);
    width: 44px;
    height: 44px;
    border-radius: 10px;
    font-size: 1.3rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.navbar-mobile-toggle:hover {
    background: rgba(223, 160, 30, 0.15);
    border-color: var(--color-gold-bright);
    color: #fff;
    transform: scale(1.04);
}

.navbar-mobile-toggle:active {
    transform: scale(0.96);
}

/* Slide-out Mobile Navigation Drawer & Overlay */
.mobile-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 13, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-drawer-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 86vw;
    height: 100vh;
    background: rgba(10, 14, 24, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-gold);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.85), 0 0 25px rgba(56, 189, 248, 0.15);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    padding: 24px 20px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
}

.mobile-drawer.active {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 20px;
}

.mobile-drawer-close {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    width: 38px;
    height: 38px;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.mobile-drawer-close:hover {
    color: #fff;
    background: rgba(220, 38, 38, 0.2);
    border-color: var(--color-red-crimson);
}

.mobile-drawer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.mobile-nav-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 12px 16px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    width: 100%;
}

.mobile-nav-btn i {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
    color: var(--color-gold);
}

.mobile-nav-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-gold);
}

.mobile-nav-btn.active {
    color: #090d16;
    background: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 100%);
    font-weight: 800;
    border-color: var(--color-gold);
    box-shadow: 0 4px 15px rgba(223, 160, 30, 0.35);
}

.mobile-nav-btn.active i {
    color: #090d16;
}

.mobile-drawer-actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 18px;
    border-top: 1px solid var(--border-subtle);
}

.mobile-drawer-actions .btn-vtt-gold,
.mobile-drawer-actions .btn-vtt-blue {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 0.95rem;
}

/* Main Content Area & Tab Views */
.main-wrapper {
    flex: 1;
    max-width: 1200px;
    width: 90%;
    margin: 40px auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease forwards;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero & Session Connection Portal */
.hero-card {
    text-align: center;
    padding: 50px 40px;
    margin-bottom: 35px;
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.hero-logo-wrapper {
    margin-bottom: 25px;
}

.hero-logo-img {
    max-width: 260px;
    max-height: 260px;
    width: 80%;
    height: auto;
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.8)) drop-shadow(0 0 25px rgba(223, 160, 30, 0.25));
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 35px;
}

.connect-box {
    max-width: 580px;
    margin: 0 auto;
    background: var(--bg-glass-input);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-gold);
}

.connect-label {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-gold-bright);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.subdomain-input-group {
    display: flex;
    border-radius: 8px;
    overflow: hidden;
    border: 1.5px solid var(--border-gold);
    background: rgba(5, 8, 14, 0.85);
    margin-bottom: 15px;
}

.subdomain-input-group input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    padding: 14px 18px;
    font-size: 1.1rem;
    outline: none;
    font-family: var(--font-primary);
}

.subdomain-input-group input::placeholder {
    color: var(--text-muted);
}

.subdomain-suffix {
    padding: 14px 18px;
    background: rgba(223, 160, 30, 0.15);
    color: var(--color-gold);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    border-left: 1px solid var(--border-gold);
}

.btn-connect {
    width: 100%;
    padding: 15px 24px;
    font-size: 1.1rem;
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: 0.8px;
    color: #090d16;
    background: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 100%);
    border: 1px solid var(--color-gold-bright);
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(223, 160, 30, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-fast);
}

.btn-connect:hover {
    background: linear-gradient(135deg, #ffe082 0%, var(--color-gold-bright) 100%);
    box-shadow: 0 6px 25px rgba(245, 196, 83, 0.6);
    transform: translateY(-2px);
    color: #000;
}

.active-sessions-section {
    margin-top: 35px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-gold-bright);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.session-card {
    background: rgba(12, 16, 26, 0.7);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 18px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.session-card:hover {
    border-color: var(--color-gold);
    background: rgba(223, 160, 30, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.session-name {
    font-weight: 700;
    font-size: 1.05rem;
}

.session-badge {
    font-size: 0.8rem;
    color: var(--color-gold);
    background: rgba(223, 160, 30, 0.15);
    padding: 4px 10px;
    border-radius: 15px;
    border: 1px solid rgba(223, 160, 30, 0.3);
}

/* Feature Showcase Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 25px;
}

.feature-card {
    padding: 30px;
    transition: var(--transition-fast);
}

.feature-card:hover {
    border-color: var(--color-gold);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.2rem;
    color: var(--color-gold);
    margin-bottom: 18px;
    text-shadow: 0 0 15px rgba(223, 160, 30, 0.4);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #fff;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 5e Compendium Quick Search Tab */
.compendium-search-box {
    margin-bottom: 25px;
}

.compendium-input {
    width: 100%;
    background: rgba(5, 8, 14, 0.85);
    border: 1.5px solid var(--border-gold);
    color: #fff;
    padding: 16px 22px;
    border-radius: 10px;
    font-size: 1.1rem;
    outline: none;
}

.compendium-input:focus {
    border-color: var(--color-gold-bright);
    box-shadow: 0 0 15px rgba(245, 196, 83, 0.3);
}

.compendium-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.comp-card {
    background: rgba(12, 16, 26, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.comp-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-vtt-blue);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.comp-card:hover {
    border-color: var(--color-vtt-blue);
    background: rgba(56, 189, 248, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.15);
}

.comp-card:hover::before {
    opacity: 1;
}

.comp-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-vtt-blue);
    font-weight: 700;
}

.comp-name {
    font-size: 1.15rem;
    font-weight: 700;
    margin-top: 6px;
    color: #ffffff;
}

/* User Guide Section Styles */
.guide-header-box {
    margin-bottom: 30px;
    text-align: center;
}

.guide-filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 25px 0 35px;
}

.guide-filter-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.guide-filter-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-gold);
}

.guide-filter-btn.active {
    color: #090d16;
    background: linear-gradient(135deg, var(--color-gold-bright) 0%, var(--color-gold) 100%);
    font-weight: 800;
    border-color: var(--color-gold);
    box-shadow: 0 2px 10px rgba(223, 160, 30, 0.35);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 22px;
    margin-bottom: 40px;
}

.guide-topic-card {
    background: rgba(14, 19, 30, 0.85);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 24px;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.guide-topic-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-vtt-blue));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.guide-topic-card:hover {
    border-color: var(--border-gold-glow);
    background: rgba(22, 30, 48, 0.9);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(223, 160, 30, 0.15);
}

.guide-topic-card:hover::after {
    opacity: 1;
}

.guide-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.guide-card-icon {
    font-size: 1.8rem;
    color: var(--color-gold-bright);
    width: 46px;
    height: 46px;
    background: rgba(223, 160, 30, 0.12);
    border: 1px solid rgba(223, 160, 30, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guide-badge {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 10px;
    border-radius: 12px;
    background: rgba(56, 189, 248, 0.12);
    color: var(--color-vtt-blue);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.guide-card-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 8px;
}

.guide-card-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.5;
    flex-grow: 1;
}

.guide-card-action {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-gold-bright);
    font-weight: 700;
    font-size: 0.88rem;
    margin-top: 16px;
}

/* Master Manual & Comprehensive User Guide Layout */
.manual-layout {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    position: relative;
}

.manual-sidebar {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 85px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background: rgba(12, 16, 26, 0.9);
    border: 1px solid var(--border-gold);
    border-radius: 14px;
    padding: 18px 14px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.manual-search-box {
    position: relative;
    margin-bottom: 16px;
}

.manual-search-box input {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 8px 12px 8px 34px;
    color: #fff;
    font-size: 0.85rem;
    font-family: var(--font-primary);
    outline: none;
    transition: var(--transition-fast);
}

.manual-search-box input:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 10px rgba(223, 160, 30, 0.3);
}

.manual-search-box i {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.manual-toc {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.manual-toc-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.manual-toc-title {
    font-family: var(--font-heading);
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gold-bright);
    padding: 4px 8px;
    margin-top: 4px;
}

.manual-toc-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 6px;
    color: var(--color-steel-light);
    font-size: 0.83rem;
    text-decoration: none;
    transition: var(--transition-fast);
    border-left: 2px solid transparent;
}

.manual-toc-link i {
    font-size: 0.8rem;
    width: 16px;
    text-align: center;
    color: var(--color-steel);
    transition: var(--transition-fast);
}

.manual-toc-link:hover {
    background: rgba(223, 160, 30, 0.12);
    color: #ffffff;
    border-left-color: var(--color-gold);
}

.manual-toc-link:hover i {
    color: var(--color-gold-bright);
}

.manual-toc-link.active {
    background: rgba(223, 160, 30, 0.2);
    color: #ffffff;
    font-weight: 600;
    border-left-color: var(--color-gold-bright);
}

.manual-toc-link.active i {
    color: var(--color-gold-bright);
}

.manual-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.manual-section {
    background: rgba(14, 19, 32, 0.85);
    border: 1px solid var(--border-gold);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    scroll-margin-top: 90px;
}

.manual-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-wrap: wrap;
    gap: 12px;
}

.manual-section-title-wrap {
    display: flex;
    align-items: center;
    gap: 14px;
}

.manual-section-icon {
    font-size: 1.8rem;
    color: var(--color-gold-bright);
    width: 44px;
    height: 44px;
    background: rgba(223, 160, 30, 0.12);
    border: 1px solid rgba(223, 160, 30, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.manual-section-title {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: #ffffff;
}

.manual-section-badge {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 4px 10px;
    border-radius: 12px;
    background: rgba(56, 189, 248, 0.12);
    color: var(--color-vtt-blue);
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.manual-section-badge.gm {
    background: rgba(223, 160, 30, 0.12);
    color: var(--color-gold-bright);
    border-color: rgba(223, 160, 30, 0.3);
}

/* Button Inspector Grid & Cards */
.btn-inspector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.btn-inspector-card {
    background: rgba(6, 9, 15, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 16px 18px;
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-inspector-card:hover {
    border-color: var(--border-gold-glow);
    background: rgba(18, 24, 38, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.btn-inspector-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.btn-inspector-title-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-inspector-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: rgba(223, 160, 30, 0.15);
    border: 1px solid rgba(223, 160, 30, 0.3);
    color: var(--color-gold-bright);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.btn-inspector-icon.blue {
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.3);
    color: var(--color-vtt-blue-bright);
}

.btn-inspector-icon.green {
    background: rgba(111, 162, 71, 0.15);
    border-color: rgba(111, 162, 71, 0.3);
    color: var(--color-green-bright);
}

.btn-inspector-icon.red {
    background: rgba(220, 38, 38, 0.15);
    border-color: rgba(220, 38, 38, 0.3);
    color: #f87171;
}

.btn-inspector-name {
    font-family: var(--font-heading);
    font-size: 0.98rem;
    color: #ffffff;
    font-weight: 700;
}

.kbd-badge {
    font-family: var(--font-code);
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 4px;
    padding: 2px 7px;
    font-size: 0.72rem;
    color: var(--color-gold-bright);
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.btn-inspector-desc {
    color: var(--text-secondary);
    font-size: 0.86rem;
    line-height: 1.5;
}

.btn-inspector-action {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--color-vtt-blue-bright);
    background: rgba(56, 189, 248, 0.08);
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.btn-inspector-action i {
    font-size: 0.75rem;
}

/* Master Manual Tables & Syntax Display */
.manual-table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    background: rgba(6, 9, 15, 0.7);
    margin-top: 14px;
}

.manual-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.88rem;
}

.manual-table th {
    background: rgba(223, 160, 30, 0.12);
    color: var(--color-gold-bright);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-gold);
    white-space: nowrap;
}

.manual-table td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-steel-light);
    vertical-align: middle;
}

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

.manual-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.syntax-badge {
    font-family: var(--font-code);
    color: var(--color-vtt-blue-bright);
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.25);
    padding: 2px 7px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.82rem;
    white-space: nowrap;
}

.syntax-example {
    font-family: var(--font-code);
    color: var(--color-green-bright);
    background: rgba(111, 162, 71, 0.12);
    border: 1px solid rgba(111, 162, 71, 0.25);
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.82rem;
    white-space: nowrap;
}

.syntax-math {
    font-family: var(--font-code);
    color: #f5c453;
    background: rgba(245, 196, 83, 0.12);
    border: 1px solid rgba(245, 196, 83, 0.25);
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 0.82rem;
    white-space: nowrap;
}

/* Feature deep dive sub-cards */
.manual-subgrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.manual-subcard {
    background: rgba(6, 9, 15, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 18px;
}

.manual-subcard h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--color-gold-bright);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.manual-subcard p {
    color: var(--text-secondary);
    font-size: 0.87rem;
    line-height: 1.55;
    margin-bottom: 8px;
}

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

.manual-subcard ul {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.manual-subcard ul li {
    color: var(--color-steel-light);
    font-size: 0.85rem;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.manual-subcard ul li i {
    color: var(--color-gold);
    font-size: 0.75rem;
    margin-top: 4px;
    flex-shrink: 0;
}

/* Host Setup Guide Tab */
.guide-step {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    background: rgba(12, 16, 26, 0.6);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
}

.step-number {
    background: linear-gradient(135deg, var(--color-gold) 0%, #b87c12 100%);
    color: #0c0e14;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 900;
    flex-shrink: 0;
}

.step-content h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-gold-bright);
    margin-bottom: 8px;
}

.code-block {
    background: #05070c;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 16px;
    border-radius: 6px;
    font-family: var(--font-code);
    color: var(--color-green-bright);
    margin-top: 10px;
    font-size: 0.9rem;
    overflow-x: auto;
}

/* Footer */
.footer-vtt {
    text-align: center;
    padding: 28px 5%;
    background: rgba(9, 13, 22, 0.96);
    border-top: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: auto;
}

.footer-vtt a {
    color: var(--color-gold-bright);
    text-decoration: none;
}

.footer-vtt a:hover {
    text-decoration: underline;
    color: #fff;
}

/* Responsive Breakpoints & Mobile Polish */
@media (max-width: 992px) {
    .navbar-vtt {
        padding: 12px 4%;
    }
    .nav-tabs {
        display: none;
    }
    .nav-actions {
        display: none;
    }
    .navbar-mobile-toggle {
        display: flex;
    }
    .manual-layout {
        flex-direction: column;
        gap: 20px;
    }
    .manual-sidebar {
        width: 100%;
        position: static;
        max-height: none;
    }
    .manual-toc {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 6px;
    }
}

@media (max-width: 768px) {
    .main-wrapper {
        width: 94%;
        margin: 25px auto;
    }
    .hero-card {
        padding: 35px 20px;
    }
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    .hero-logo-img {
        max-width: 200px;
        max-height: 200px;
    }
    .connect-box {
        padding: 18px;
    }
    .subdomain-input-group {
        flex-direction: column;
    }
    .subdomain-suffix {
        border-left: none;
        border-top: 1px solid var(--border-gold);
        justify-content: center;
        padding: 10px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .guide-grid {
        grid-template-columns: 1fr;
    }
    .guide-detail-card {
        padding: 22px 18px;
    }
    .guide-step-card {
        flex-direction: column;
        gap: 12px;
    }
    .guide-step-num {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-brand-logo {
        height: 36px;
    }
    .nav-brand-text {
        font-size: 1.15rem;
    }
    .hero-card {
        padding: 25px 14px;
        border-radius: 12px;
    }
    .btn-connect {
        font-size: 1rem;
        padding: 14px;
    }
    .section-title {
        font-size: 1.2rem;
    }
}