/* ==============================================================================
   FERRIS.UZ - CYBER-RUST OLED DESIGN SYSTEM
   Inspired by: Linear, Tauri, Raycast & Geek Aesthetics
   ============================================================================== */

:root {
    --bg-base: #07080c;
    --bg-surface: #0d0f17;
    --bg-card: rgba(18, 22, 34, 0.7);
    --bg-card-hover: rgba(26, 32, 50, 0.85);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(247, 76, 0, 0.35);
    --border-active: rgba(247, 76, 0, 0.6);
    
    --accent-rust: #f74c00;
    --accent-rust-light: #ff6a2b;
    --accent-rust-glow: rgba(247, 76, 0, 0.4);
    
    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.3);
    
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-dim: #475569;
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* Background Ambient Glow & Cyber Grid */
.ambient-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.18;
}

.orb-1 {
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-rust) 0%, transparent 70%);
}

.orb-2 {
    bottom: 10%;
    right: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #3b82f6 0%, transparent 70%);
    opacity: 0.12;
}

.cyber-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at 50% 30%, black 40%, transparent 80%);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(7, 8, 12, 0.82);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.crab-icon {
    font-size: 1.6rem;
    filter: drop-shadow(0 0 10px var(--accent-rust-glow));
    transition: var(--transition);
}

.brand-logo:hover .crab-icon {
    transform: rotate(15deg) scale(1.1);
}

.brand-dot {
    color: var(--accent-rust);
}

.version-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-sm);
    background: rgba(247, 76, 0, 0.12);
    border: 1px solid rgba(247, 76, 0, 0.3);
    color: var(--accent-rust-light);
    margin-left: 0.25rem;
}

.nav-links {
    display: flex;
    gap: 1.75rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: var(--accent-green);
}

.pulse-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-rust) 0%, #d83d00 100%);
    color: #ffffff;
    box-shadow: 0 4px 20px var(--accent-rust-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(247, 76, 0, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border-color: var(--border-subtle);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-subtle);
}

.btn-outline:hover {
    border-color: var(--accent-rust);
    color: var(--accent-rust);
}

.btn-sm {
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

/* Main Container */
.main-content {
    position: relative;
    z-index: 1;
    max-width: 1240px;
    margin: 0 auto;
    padding: 7rem 1.5rem 4rem 1.5rem;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 3.5rem 0 4.5rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 0.4rem 1.1rem;
    border-radius: var(--radius-full);
    background: rgba(247, 76, 0, 0.1);
    border: 1px solid rgba(247, 76, 0, 0.25);
    color: var(--accent-rust-light);
    margin-bottom: 1.75rem;
    box-shadow: 0 0 24px rgba(247, 76, 0, 0.15);
}

.hero-title {
    font-size: clamp(2.75rem, 6.5vw, 4.75rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.035em;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 10%, #f74c00 60%, #ff8533 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    max-width: 720px;
    margin: 0 auto 2.5rem auto;
    font-size: clamp(1.1rem, 2.2vw, 1.35rem);
    color: var(--text-secondary);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.25rem;
}

/* Install Bar */
.install-bar {
    max-width: 580px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    background: rgba(13, 15, 23, 0.9);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.prompt-sym {
    color: var(--accent-rust);
    font-weight: 700;
}

.install-bar code {
    color: #e2e8f0;
    overflow-x: auto;
    white-space: nowrap;
}

.copy-btn {
    position: relative;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.25rem;
}

.copy-btn:hover {
    color: var(--text-primary);
}

.copied-tooltip {
    position: absolute;
    top: -2rem;
    right: 50%;
    transform: translateX(50%);
    background: var(--accent-green);
    color: #000;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    pointer-events: none;
    opacity: 0;
    transition: var(--transition);
}

.copy-btn.copied .copied-tooltip {
    opacity: 1;
    transform: translateX(50%) translateY(-4px);
}

/* Sections Global */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.section-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent-rust);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.75rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Telemetry Grid (HUD) */
.telemetry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.hud-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    backdrop-filter: blur(16px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.hud-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
    opacity: 0;
    transition: var(--transition);
}

.hud-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(247, 76, 0, 0.1);
}

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

.hud-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.hud-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.hud-chip {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    background: rgba(247, 76, 0, 0.12);
    color: var(--accent-rust-light);
}

.chip-green {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-green);
}

.chip-cyan {
    background: rgba(6, 182, 212, 0.12);
    color: var(--accent-cyan);
}

.chip-orange {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
}

.hud-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.hud-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.hud-meter {
    height: 6px;
    width: 100%;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 1rem;
}

.meter-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.cpu-bar { background: linear-gradient(90deg, var(--accent-rust), #f97316); }
.mem-bar { background: linear-gradient(90deg, var(--accent-green), #34d399); }
.lat-bar { background: linear-gradient(90deg, var(--accent-cyan), #38bdf8); }
.sound-bar { background: linear-gradient(90deg, #8b5cf6, #a855f7); }

.hud-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-ok {
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-weight: 600;
}

/* Interactive Terminal */
.terminal-container {
    max-width: 960px;
    margin: 0 auto;
}

.terminal-window {
    background: #090b10;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(247, 76, 0, 0.08);
    overflow: hidden;
}

.terminal-titlebar {
    background: #11141d;
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-controls {
    display: flex;
    gap: 0.45rem;
}

.btn-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.term-action-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.term-action-btn:hover {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.25);
}

.terminal-presets {
    padding: 0.75rem 1.25rem;
    background: #0c0e15;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.preset-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
}

.chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.chip:hover {
    background: rgba(247, 76, 0, 0.15);
    border-color: var(--accent-rust);
    color: #ffffff;
}

.terminal-body {
    padding: 1.25rem;
    min-height: 280px;
    max-height: 420px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    color: #e2e8f0;
}

.term-line {
    margin-bottom: 0.75rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.term-dim { color: var(--text-muted); }
.term-highlight { color: var(--accent-rust-light); font-weight: 600; }
.term-cmd { color: #38bdf8; font-weight: 600; }
.term-success { color: var(--accent-green); }
.term-error { color: #f87171; }

.terminal-input-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    background: #0d1017;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-family: var(--font-mono);
}

.term-prompt {
    color: var(--accent-rust);
    font-weight: 700;
}

.term-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    outline: none;
}

.term-run-btn {
    background: rgba(247, 76, 0, 0.2);
    border: 1px solid var(--accent-rust);
    color: var(--accent-rust-light);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.term-run-btn:hover {
    background: var(--accent-rust);
    color: #ffffff;
}

/* Benchmark Arena */
.benchmark-box {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(16px);
}

.slider-control {
    margin-bottom: 2.5rem;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.slider-value {
    color: var(--accent-rust);
    font-family: var(--font-mono);
    font-size: 1.1rem;
}

.custom-slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    cursor: pointer;
    accent-color: var(--accent-rust);
}

.battle-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.chart-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
}

.bar-group {
    margin-bottom: 1.25rem;
}

.bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.bar-track {
    height: 12px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fill-rust { background: linear-gradient(90deg, #f74c00, #ff7b39); box-shadow: 0 0 12px var(--accent-rust-glow); }
.fill-go { background: linear-gradient(90deg, #00add8, #4dd2f0); }
.fill-node { background: linear-gradient(90deg, #22c55e, #4ade80); }
.fill-py { background: linear-gradient(90deg, #eab308, #facc15); }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.75rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(16px);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(247, 76, 0, 0.1);
}

.service-icon {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.service-chip {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    background: rgba(247, 76, 0, 0.12);
    color: var(--accent-rust-light);
    margin-bottom: 0.75rem;
}

.service-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: #ffffff;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Manifesto Section */
.manifesto-card {
    background: radial-gradient(circle at 50% 0%, rgba(247, 76, 0, 0.15) 0%, rgba(13, 15, 23, 0.95) 70%);
    border: 1px solid rgba(247, 76, 0, 0.3);
    border-radius: var(--radius-lg);
    padding: 3.5rem 2.5rem;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
}

.manifesto-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-rust-light);
    margin-bottom: 1rem;
    letter-spacing: 0.08em;
}

.manifesto-title {
    font-size: clamp(2.25rem, 4.5vw, 3.25rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.manifesto-text {
    max-width: 760px;
    margin: 0 auto 2rem auto;
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.manifesto-quote {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: #e2e8f0;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    border-radius: var(--radius-md);
    display: inline-block;
    border-left: 3px solid var(--accent-rust);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-subtle);
    background: #06070a;
    padding: 4rem 1.5rem 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

.footer-container {
    max-width: 1240px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.footer-desc {
    max-width: 320px;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-right {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ffffff;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    margin-bottom: 0.6rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent-rust-light);
}

.footer-bottom {
    max-width: 1240px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.footer-status {
    font-family: var(--font-mono);
    color: var(--accent-rust);
}

/* WebSocket Community Chat */
.chat-container {
    max-width: 900px;
    margin: 0 auto;
}

.chat-box {
    background: #090b10;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(16, 185, 129, 0.08);
    overflow: hidden;
}

.chat-header {
    background: #11141d;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.chat-online-badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-primary);
}

.chat-online-badge strong {
    color: var(--accent-green);
}

.chat-socket-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
}

.chat-messages {
    padding: 1.25rem;
    min-height: 280px;
    max-height: 380px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.chat-bubble {
    padding: 0.65rem 1rem;
    border-radius: 12px;
    max-width: 80%;
    font-size: 0.9rem;
    line-height: 1.5;
    word-break: break-word;
}

.bubble-system {
    align-self: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px dashed rgba(255, 255, 255, 0.12);
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    text-align: center;
}

.bubble-user {
    align-self: flex-start;
    background: rgba(18, 22, 34, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #e2e8f0;
}

.bubble-me {
    align-self: flex-end;
    background: rgba(247, 76, 0, 0.15);
    border: 1px solid rgba(247, 76, 0, 0.4);
    color: #ffffff;
}

.chat-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.chat-author {
    font-weight: 700;
    color: var(--accent-rust-light);
    font-family: var(--font-mono);
}

.bubble-me .chat-author {
    color: #38bdf8;
}

.chat-time {
    color: var(--text-dim);
    font-size: 0.7rem;
    font-family: var(--font-mono);
}

.chat-composer {
    background: #0d1017;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.85rem 1.25rem;
}

.composer-user-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.6rem;
}

.composer-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.chat-nick-input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.25rem 0.6rem;
    outline: none;
    width: 140px;
}

.chat-nick-input:focus {
    border-color: var(--accent-rust);
}

.quick-reactions {
    display: flex;
    gap: 0.35rem;
}

.reaction-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 0.2rem 0.45rem;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.reaction-btn:hover {
    background: rgba(247, 76, 0, 0.2);
    border-color: var(--accent-rust);
    transform: scale(1.15);
}

.composer-input-row {
    display: flex;
    gap: 0.75rem;
}

.chat-msg-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.6rem 1rem;
    color: #ffffff;
    font-size: 0.9rem;
    outline: none;
    font-family: var(--font-sans);
}

.chat-msg-input:focus {
    border-color: var(--accent-rust);
    box-shadow: 0 0 15px rgba(247, 76, 0, 0.2);
}

/* Responsive */
@media (max-width: 860px) {
    .nav-links { display: none; }
    .footer-right { gap: 2rem; }
}

@media (max-width: 600px) {
    .hero-title { font-size: 2.25rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .install-bar { width: 100%; }
}

/* ==============================================================================
   MULTI-ROOM CHANNELS & 2FA AUTH MODAL STYLES
   ============================================================================== */

/* Room Selector Bar */
.room-selector-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--border-subtle);
}

.room-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: var(--transition);
}

.room-tab:hover {
    background: rgba(247, 76, 0, 0.1);
    color: var(--text-primary);
    border-color: rgba(247, 76, 0, 0.4);
}

.room-tab.active {
    background: rgba(247, 76, 0, 0.2);
    border-color: var(--accent-rust);
    color: #ffffff;
    box-shadow: 0 0 12px rgba(247, 76, 0, 0.25);
}

.room-pill {
    font-size: 0.68rem;
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
}

.room-tab.active .room-pill {
    background: rgba(247, 76, 0, 0.4);
    color: #fff;
}

/* Auth Modal Overlay */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(4, 5, 8, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.auth-modal-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.auth-modal-card {
    width: 100%;
    max-width: 440px;
    background: #0d1017;
    border: 1px solid rgba(247, 76, 0, 0.35);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(247, 76, 0, 0.15);
    padding: 2rem;
    position: relative;
    animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
    from {
        transform: scale(0.93) translateY(10px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.auth-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.auth-crab {
    font-size: 2.2rem;
    filter: drop-shadow(0 0 10px rgba(247, 76, 0, 0.5));
}

.auth-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.auth-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.auth-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.auth-close-btn:hover {
    color: #ef4444;
    transform: scale(1.15);
}

/* Tabs */
.auth-tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-md);
    padding: 0.3rem;
    margin-bottom: 1.5rem;
    gap: 0.3rem;
}

.auth-tab-btn {
    flex: 1;
    padding: 0.6rem 0.85rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.auth-tab-btn:hover {
    color: var(--text-primary);
}

.auth-tab-btn.active {
    background: rgba(247, 76, 0, 0.25);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Alerts */
.auth-alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
    line-height: 1.4;
}

.auth-alert.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: #10b981;
}

.auth-alert.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #ef4444;
}

.auth-alert.hidden {
    display: none;
}

/* Form */
.form-group {
    margin-bottom: 1.15rem;
}

.form-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.7rem 1rem;
    color: #ffffff;
    font-size: 0.92rem;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--accent-rust);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 15px rgba(247, 76, 0, 0.25);
}

.input-hint {
    display: block;
    font-size: 0.74rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
    font-family: var(--font-mono);
}

.btn-block {
    width: 100%;
    padding: 0.85rem;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.auth-footer-note {
    text-align: center;
    margin-top: 1.25rem;
    font-size: 0.72rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
}