/* ==========================================================================
   ThreeUI Editorial Theme — Dark Poseidon Portfolio
   Warm Palette: Red, Pure White, Vibrant Orange, Radiant Yellow/Gold
   Design: Studio Project Explorer, Emberline 3D Vortex, Minimalist Frosted Glass
   ========================================================================== */

:root {
    --bg-main: #070607;
    --bg-glass: rgba(18, 14, 16, 0.72);
    --bg-glass-active: rgba(28, 20, 24, 0.88);
    --bg-card: rgba(20, 15, 17, 0.65);
    
    --border-dim: rgba(249, 115, 22, 0.12);
    --border-glow: rgba(249, 115, 22, 0.38);
    --border-gold: rgba(251, 191, 36, 0.45);
    --border-red: rgba(239, 68, 68, 0.45);

    --primary-orange: #f97316;
    --primary-red: #ef4444;
    --primary-gold: #fbbf24;
    --primary-yellow: #facc15;
    --pure-white: #ffffff;

    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --text-muted: #8e888a;
    --text-code: #fde68a;

    --font-sans: 'Plus Jakarta Sans', -apple-system, sans-serif;
    --font-serif: 'Newsreader', serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-pill: 9999px;

    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Custom Warm Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: #261b1e;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-orange);
}

/* Three.js 3D WebGL Canvas */
#three-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -3;
    pointer-events: none;
}

/* Ambient Vortex Spotlight */
.ambient-vortex-glow {
    position: fixed;
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.08) 0%, rgba(239, 68, 68, 0.04) 40%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: -2;
    transition: transform 0.08s ease-out;
}

.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: radial-gradient(rgba(251, 191, 36, 0.08) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.3) 70%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.3) 70%, transparent 100%);
    pointer-events: none;
    z-index: -1;
}

.section-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #fbbf24 30%, #f97316 70%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.editorial-italic {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--primary-gold);
}

.white-txt {
    color: var(--pure-white);
}

/* ==========================================================================
   Navigation Bar (ThreeUI Frosted Bar)
   ========================================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    background: rgba(7, 6, 7, 0.8);
    border-bottom: 1px solid var(--border-dim);
    padding: 16px 0;
}

.nav-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.brand-monogram {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: rgba(249, 115, 22, 0.12);
    border: 1px solid var(--border-glow);
    color: var(--primary-gold);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 12px rgba(249, 115, 22, 0.2);
}

.brand-meta {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 0.98rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.brand-subtitle {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--primary-orange);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

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

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

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

.nav-github-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(249, 115, 22, 0.08);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-pill);
    color: #fff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.nav-github-btn:hover {
    background: rgba(249, 115, 22, 0.2);
    border-color: var(--primary-orange);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
    transform: translateY(-1px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding: 100px 0 80px 0;
    text-align: center;
    position: relative;
}

.hero-wrapper {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: rgba(249, 115, 22, 0.08);
    border: 1px solid var(--border-dim);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary-gold);
    letter-spacing: 0.8px;
    margin-bottom: 24px;
}

.pill-beacon {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary-red);
    box-shadow: 0 0 8px var(--primary-red);
}

.hero-heading {
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 20px;
    color: #fff;
}

.hero-tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 680px;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 56px;
}

/* ThreeUI Ember Shader Buttons */
.btn-ember-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #fbbf24 0%, #f97316 50%, #ef4444 100%);
    color: #070607;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    box-shadow: 0 0 25px rgba(249, 115, 22, 0.35);
    transition: var(--transition);
    overflow: hidden;
}

.btn-ember-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(239, 68, 68, 0.55);
}

.btn-ember-glass {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    backdrop-filter: blur(12px);
    transition: var(--transition);
}

.btn-ember-glass:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: var(--border-glow);
    transform: translateY(-2px);
}

/* Metrics Strip */
.metrics-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 18px 32px;
    border-radius: var(--radius-lg);
    background: var(--bg-glass);
    border: 1px solid var(--border-dim);
    backdrop-filter: blur(16px);
    flex-wrap: wrap;
}

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

.metric-val {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    font-family: var(--font-mono);
}

.metric-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.metric-separator {
    width: 1px;
    height: 32px;
    background: var(--border-dim);
}

/* ==========================================================================
   Showcase Section (ThreeUI Studio Explorer)
   ========================================================================== */
.showcase-section, .arch-section, .telemetry-section {
    padding: 80px 0;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 44px;
}

.section-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--primary-gold);
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid var(--border-dim);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.section-h2 {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: #fff;
    margin-bottom: 10px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 580px;
    margin: 0 auto;
}

/* Interactive Tabs */
.project-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-dim);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover {
    background: rgba(249, 115, 22, 0.1);
    border-color: var(--primary-orange);
    color: #fff;
}

.tab-btn.active {
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.2) 0%, rgba(249, 115, 22, 0.2) 100%);
    border-color: var(--primary-gold);
    color: var(--primary-gold);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.25);
}

.tab-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

/* Spotlight Active Project Box */
.spotlight-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: 36px;
    backdrop-filter: blur(24px);
    margin-bottom: 48px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), inset 0 0 35px rgba(249, 115, 22, 0.06);
    transition: var(--transition);
}

.spotlight-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    align-items: center;
}

.spotlight-info-col {
    display: flex;
    flex-direction: column;
}

.spotlight-badge-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.spotlight-lang-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

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

.spotlight-title {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}

.spotlight-title a {
    color: #fff;
    text-decoration: none;
    transition: color 0.2s ease;
}

.spotlight-title a:hover {
    color: var(--primary-gold);
}

.spotlight-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.65;
    margin-bottom: 24px;
}

.spotlight-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 28px;
}

.spot-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-dim);
    color: var(--text-secondary);
}

.spotlight-btn-row {
    display: flex;
    gap: 12px;
}

.btn-spot-repo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
}

.btn-spot-repo:hover {
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.5);
    transform: translateY(-2px);
}

.btn-spot-clone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-dim);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-spot-clone:hover {
    border-color: var(--primary-gold);
    color: var(--primary-gold);
}

/* Spotlight Telemetry Code Box (Right Col) */
.spotlight-telemetry-col {
    background: #080608;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    padding: 24px;
    font-family: var(--font-mono);
}

.telemetry-meta-row {
    display: flex;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-dim);
    margin-bottom: 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.telemetry-stars {
    color: var(--primary-gold);
    font-weight: 700;
}

.telemetry-code-snippet {
    font-size: 0.82rem;
    line-height: 1.7;
    color: var(--text-code);
    overflow-x: auto;
}

.code-keyword { color: var(--primary-red); }
.code-fn { color: var(--primary-gold); }
.code-str { color: #fde68a; }

/* Grid view of 4 pinned cards */
.pinned-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.mini-pinned-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    padding: 22px;
    transition: var(--transition);
    cursor: pointer;
}

.mini-pinned-card:hover {
    border-color: var(--primary-gold);
    background: var(--bg-glass-active);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.mini-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.mini-lang {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
}

.mini-stars {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary-gold);
}

.mini-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.mini-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Loading State */
.spotlight-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px 0;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.ember-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(249, 115, 22, 0.2);
    border-top-color: var(--primary-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ==========================================================================
   Architecture Section
   ========================================================================== */
.arch-cards-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.arch-item {
    background: var(--bg-card);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(16px);
    transition: var(--transition);
}

.arch-item:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}

.arch-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.arch-num {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.15);
}

.arch-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-weight: 700;
}

.arch-badge.gold {
    background: rgba(251, 191, 36, 0.12);
    color: var(--primary-gold);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.arch-badge.red {
    background: rgba(239, 68, 68, 0.12);
    color: var(--primary-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.arch-badge.orange {
    background: rgba(249, 115, 22, 0.12);
    color: var(--primary-orange);
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.arch-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.arch-item p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.arch-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.arch-tags span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
}

/* ==========================================================================
   Telemetry Section
   ========================================================================== */
.terminal-panel {
    background: #080608;
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
    max-width: 900px;
    margin: 0 auto;
}

.terminal-bar {
    background: #120e10;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-dim);
}

.terminal-controls {
    display: flex;
    gap: 6px;
}

.btn-ctrl {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.btn-ctrl.close { background: #ef4444; }
.btn-ctrl.min { background: #f59e0b; }
.btn-ctrl.max { background: #10b981; }

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

.terminal-status-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--primary-gold);
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-gold {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary-gold);
    box-shadow: 0 0 6px var(--primary-gold);
}

.terminal-window {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.6;
    min-height: 220px;
}

.term-line {
    margin-bottom: 8px;
}

.t-prompt {
    color: var(--primary-gold);
    font-weight: 600;
}

.t-cmd {
    color: #fef08a;
}

.term-response {
    color: #fcd34d;
    margin-bottom: 16px;
    white-space: pre-wrap;
}

.term-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

#term-input-field {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    flex-grow: 1;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    border-top: 1px solid var(--border-dim);
    padding: 48px 0 28px 0;
    margin-top: 60px;
    background: rgba(7, 6, 7, 0.95);
}

.footer-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 24px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    display: block;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-right {
    display: flex;
    gap: 20px;
}

.footer-right a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.footer-sub-bar {
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 24px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 900px) {
    .hero-heading { font-size: 2.75rem; }
    .spotlight-layout { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .metrics-strip { gap: 16px; }
}