/* ==========================================================================
   T-ZERO BENCHMARK LAB — PREMIUM CYBERPUNK DESIGN SYSTEM
   ========================================================================== */

:root {
  --bg-dark: #050810;
  --bg-card: rgba(12, 16, 28, 0.75);
  --bg-card-hover: rgba(18, 24, 42, 0.9);
  --bg-card-solid: #0c101c;
  --border-color: rgba(30, 40, 65, 0.7);
  --border-glow: rgba(0, 240, 255, 0.35);
  
  --accent-cyan: #00f0ff;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-coral: #f97316;
  --accent-rose: #fb7185;
  --accent-gold: #fbbf24;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Fira Code', Consolas, "Courier New", monospace;
  
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

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

/* ===== THREE.JS CANVAS ===== */
#hero-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ===== AMBIENT GLOWS ===== */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  animation: glowFloat 12s ease-in-out infinite alternate;
}
.glow-1 {
  width: 700px;
  height: 700px;
  top: -150px;
  left: 10%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, rgba(168, 85, 247, 0.06) 60%, transparent 80%);
}
.glow-2 {
  width: 600px;
  height: 600px;
  bottom: 5%;
  right: 5%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(0, 240, 255, 0.04) 60%, transparent 80%);
  animation-delay: -6s;
}
.glow-3 {
  width: 500px;
  height: 500px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(168, 85, 247, 0.06) 0%, transparent 70%);
  animation-delay: -3s;
}
@keyframes glowFloat {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(20px, -30px) scale(1.05); }
}

.cyber-grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(0, 240, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 240, 255, 0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
}

.scanline {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.4), transparent);
  z-index: 1;
  animation: scanlineMove 8s linear infinite;
  pointer-events: none;
}
@keyframes scanlineMove {
  0% { top: -3px; opacity: 0; }
  5% { opacity: 1; }
  95% { opacity: 1; }
  100% { top: 100vh; opacity: 0; }
}

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  background: rgba(5, 8, 16, 0.75);
  border-bottom: 1px solid var(--border-color);
  transition: background 0.3s, box-shadow 0.3s;
}
.navbar.scrolled {
  background: rgba(5, 8, 16, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(168, 85, 247, 0.15));
  border: 1px solid rgba(0, 240, 255, 0.4);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2), inset 0 0 20px rgba(0, 240, 255, 0.05);
  transition: box-shadow 0.3s;
}
.brand:hover .brand-icon {
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4), inset 0 0 30px rgba(0, 240, 255, 0.1);
}
.brand-text {
  display: flex;
  flex-direction: column;
}
.brand-title {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--text-main);
}
.brand-sub {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.15em;
  opacity: 0.8;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: color 0.3s;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  transition: width 0.3s;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}
.nav-link:hover {
  color: var(--accent-cyan);
}
.nav-link:hover::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  gap: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
}
.btn-outline-sm {
  padding: 8px 16px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}
.btn-outline-sm:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
}
.btn-primary-sm {
  padding: 8px 16px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(168, 85, 247, 0.15));
  color: var(--text-main);
  border: 1px solid rgba(0, 240, 255, 0.3);
}
.btn-primary-sm:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(168, 85, 247, 0.25));
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
  transform: translateY(-1px);
}
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== SECTIONS ===== */
.section, .hero-section {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  padding: 80px 32px;
}

/* ===== HERO ===== */
.hero-section {
  padding-top: 100px;
  padding-bottom: 60px;
  text-align: center;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-content {
  max-width: 900px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 22px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-emerald);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 12px var(--accent-emerald);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.4); }
}
.hero-title {
  font-size: 64px;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.04em;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #7c3aed 50%, var(--accent-purple) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}
.hero-desc {
  font-size: 19px;
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 40px auto;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}
.btn-hero-primary {
  padding: 14px 28px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(168, 85, 247, 0.2));
  color: var(--text-main);
  border: 1px solid rgba(0, 240, 255, 0.4);
  font-size: 15px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
}
.btn-hero-primary:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.3), rgba(168, 85, 247, 0.3));
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.25);
  transform: translateY(-2px);
}
.hero-install-cmd {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(5, 8, 16, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 20px;
  backdrop-filter: blur(10px);
}
.hero-install-cmd code {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--accent-cyan);
  font-weight: 600;
}
.hero-copy-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}
.hero-copy-btn:hover {
  color: var(--accent-cyan);
}

/* Floating Stats */
.hero-floating-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(10, 14, 25, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 40px;
  backdrop-filter: blur(20px);
  max-width: 700px;
  margin: 0 auto;
}
.floating-stat {
  flex: 1;
  text-align: center;
  padding: 0 20px;
}
.fs-number {
  font-size: 36px;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
  display: inline;
}
.fs-suffix {
  font-size: 24px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}
.fs-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}
.floating-stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-color);
  flex-shrink: 0;
}

/* ===== ANIMATIONS ===== */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeInUp 0.8s ease forwards;
}
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== SECTION HEADERS ===== */
.section-header {
  margin-bottom: 48px;
}
.section-label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.section-title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.2;
}
.section-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 700px;
  line-height: 1.6;
}

/* ===== METRIC CARDS ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: left;
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.08);
}
.metric-card:hover::before {
  opacity: 1;
}
.highlight-card {
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.08);
}
.metric-icon {
  margin-bottom: 16px;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
}
.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.metric-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.metric-val {
  font-size: 44px;
  font-weight: 800;
  font-family: var(--font-mono);
  line-height: 1.1;
  margin-bottom: 8px;
}
.cyan-glow {
  color: var(--accent-cyan);
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
}
.green-glow {
  color: var(--accent-emerald);
  text-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
}
.metric-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.metric-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
}
.metric-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1.5s ease;
}
.metric-bar-red { background: linear-gradient(90deg, var(--accent-rose), #ef4444); }
.metric-bar-cyan { background: linear-gradient(90deg, var(--accent-cyan), #06b6d4); }
.metric-bar-green { background: linear-gradient(90deg, var(--accent-emerald), #34d399); }
.metric-bar-purple { background: linear-gradient(90deg, var(--accent-purple), #7c3aed); }

/* ===== BADGES ===== */
.badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.badge-danger {
  background: rgba(251, 113, 133, 0.12);
  color: var(--accent-rose);
  border: 1px solid rgba(251, 113, 133, 0.25);
}
.badge-success {
  background: rgba(16, 185, 129, 0.12);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-accent {
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.25);
}
.badge-purple {
  background: rgba(168, 85, 247, 0.12);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.25);
}
.badge-cyan {
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.25);
}

/* ===== TABLE ===== */
.table-container {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  margin-bottom: 40px;
}
.benchmark-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}
.benchmark-table th {
  padding: 18px 22px;
  background: rgba(15, 20, 35, 0.9);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border-color);
}
.benchmark-table td {
  padding: 16px 22px;
  border-bottom: 1px solid rgba(30, 40, 65, 0.4);
  font-family: var(--font-mono);
  font-size: 13px;
}
.benchmark-table tr:last-child td { border-bottom: none; }
.benchmark-table tr {
  transition: background 0.2s;
}
.benchmark-table tr:hover td {
  background: rgba(0, 240, 255, 0.02);
}
.file-cell { font-weight: 600; color: var(--text-main); }
.reduction-cell { color: var(--accent-emerald); font-weight: 700; }

/* ===== CHART BARS ===== */
.chart-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(20px);
}
.chart-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.bar-row { margin-bottom: 24px; }
.bar-row:last-child { margin-bottom: 0; }
.bar-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
}
.bar-track {
  height: 32px;
  background: rgba(12, 16, 28, 0.8);
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
  display: flex;
  border: 1px solid rgba(30, 40, 65, 0.3);
}
.bar-fill-ultra {
  height: 100%;
  background: linear-gradient(90deg, #00f0ff, #10b981);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 12px;
  font-size: 11px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #05070b;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
  transition: width 1.5s ease;
}
.bar-fill-raw {
  height: 100%;
  background: rgba(251, 113, 133, 0.15);
  flex: 1;
  display: flex;
  align-items: center;
  padding-left: 12px;
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: #fb7185;
}

/* ===== INSPECTOR ===== */
.inspector-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(20px);
}
.inspector-controls {
  padding: 24px;
  background: rgba(8, 12, 22, 0.9);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
  justify-content: space-between;
}
.file-selector-group label, .mode-selector-group label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.tab-buttons, .mode-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tab-btn, .mode-btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  background: rgba(15, 20, 35, 0.8);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.25s;
}
.tab-btn:hover, .mode-btn:hover {
  border-color: rgba(0, 240, 255, 0.3);
  color: var(--text-main);
}
.tab-btn.active, .mode-btn.active {
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.4);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
}
.inspector-meta-bar {
  display: flex;
  gap: 32px;
  padding: 14px 24px;
  background: rgba(5, 8, 14, 0.9);
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
}
.cyan-text { color: var(--accent-cyan); }
.green-text { color: var(--accent-emerald); }
.red-text { color: var(--accent-rose); }

.code-editor-box {
  background: rgba(5, 7, 12, 0.95);
}
.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(10, 14, 24, 0.95);
  border-bottom: 1px solid rgba(30, 40, 65, 0.4);
}
.window-dots {
  display: flex;
  gap: 7px;
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }
.editor-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}
.copy-btn {
  padding: 5px 14px;
  background: rgba(20, 28, 48, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 6px;
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.copy-btn:hover {
  background: var(--accent-cyan);
  color: #05070b;
}
.code-content {
  display: block;
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  max-height: 520px;
  overflow-y: auto;
  white-space: pre;
  color: #c7d2dd;
}
.code-content::-webkit-scrollbar {
  width: 6px;
}
.code-content::-webkit-scrollbar-track {
  background: transparent;
}
.code-content::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.2);
  border-radius: 3px;
}

/* ===== CALCULATOR ===== */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 32px;
}
.calc-inputs-card, .calc-results-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(20px);
}
.calc-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.control-group {
  margin-bottom: 28px;
}
.control-group label {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}
.slider-val {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
}
input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 4px;
  background: rgba(20, 28, 48, 0.8);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.6);
  transition: box-shadow 0.2s;
}
input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
}
.model-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.model-chip {
  padding: 12px 18px;
  background: rgba(12, 16, 28, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all 0.25s;
}
.model-chip:hover {
  border-color: rgba(0, 240, 255, 0.3);
  background: rgba(0, 240, 255, 0.03);
}
.model-chip.active {
  background: rgba(0, 240, 255, 0.08);
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.1);
}
.model-name { font-weight: 600; font-size: 14px; }
.model-rate {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 14px;
}
.res-label { color: var(--text-muted); }
.res-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
}
.divider {
  height: 1px;
  background: var(--border-color);
  margin: 24px 0;
}
.savings-banner {
  margin-top: 32px;
  padding: 28px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(0, 240, 255, 0.1) 100%);
  border: 1px solid rgba(16, 185, 129, 0.3);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.savings-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.05), transparent);
  animation: shimmer 3s infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(50%); }
}
.savings-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--accent-emerald);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.savings-amount {
  font-size: 36px;
  font-weight: 900;
  font-family: var(--font-mono);
  color: #34d399;
  text-shadow: 0 0 30px rgba(16, 185, 129, 0.35);
  margin-bottom: 8px;
  position: relative;
}
.savings-note {
  font-size: 13px;
  color: var(--text-muted);
  position: relative;
}

/* ===== TOOLS GRID ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}
.tool-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.tool-box::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  opacity: 0;
  transition: opacity 0.3s;
}
.tool-box:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.tool-box:hover::after {
  opacity: 1;
}
.tool-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 8px;
}
.tool-fn {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--accent-cyan);
}
.tool-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ===== SECURITY ===== */
.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.security-col {
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(20px);
}
.security-bad {
  background: rgba(251, 113, 133, 0.04);
  border: 1px solid rgba(251, 113, 133, 0.2);
}
.security-good {
  background: rgba(16, 185, 129, 0.04);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.sec-col-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.sec-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  flex-shrink: 0;
}
.sec-icon-bad {
  background: rgba(251, 113, 133, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(251, 113, 133, 0.3);
}
.sec-icon-good {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.sec-col-header h3 {
  font-size: 18px;
  font-weight: 700;
}
.security-bad .sec-col-header h3 { color: var(--accent-rose); }
.security-good .sec-col-header h3 { color: var(--accent-emerald); }

.sec-list {
  list-style: none;
}
.sec-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.55;
}
.sec-list li::before {
  content: "›";
  position: absolute;
  left: 4px;
  font-weight: 700;
}
.security-bad .sec-list li::before { color: var(--accent-rose); }
.security-good .sec-list li::before { color: var(--accent-emerald); }

/* ===== CTA ===== */
.cta-box {
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 240, 255, 0.06) 0%, rgba(12, 16, 28, 0.8) 60%);
  border: 1px solid rgba(0, 240, 255, 0.25);
  box-shadow: 0 0 60px rgba(0, 240, 255, 0.08);
  border-radius: 28px;
  padding: 64px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}
.cta-title {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.cta-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 36px;
}
.cmd-box {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: rgba(5, 8, 16, 0.9);
  border: 2px solid rgba(0, 240, 255, 0.5);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
  margin-bottom: 36px;
}
.cmd-prompt {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
}
.cmd-text {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: #ffffff;
}
.cmd-copy {
  background: rgba(20, 28, 48, 0.8);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.cmd-copy:hover {
  background: var(--accent-cyan);
  color: #05070b;
}
.cta-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: var(--text-dim);
}
.env-pill {
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text-main);
  font-size: 13px;
  transition: border-color 0.2s;
}
.env-pill:hover {
  border-color: rgba(0, 240, 255, 0.3);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border-color);
  background: rgba(3, 5, 8, 0.9);
  padding: 40px 32px;
  position: relative;
  z-index: 2;
}
.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-left p {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}
.footer-right {
  display: flex;
  gap: 28px;
}
.footer-right a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.footer-right a:hover {
  color: var(--accent-cyan);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-title { font-size: 48px; }
  .section-title { font-size: 32px; }
  .tools-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}

@media (max-width: 900px) {
  .hero-title { font-size: 38px; }
  .hero-section { min-height: auto; padding-top: 60px; }
  .security-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .mobile-menu-btn { display: flex; }
  .cmd-text { font-size: 16px; }
  .cmd-prompt { font-size: 16px; }
  .hero-floating-stats { flex-wrap: wrap; gap: 16px; padding: 20px; }
  .floating-stat-divider { display: none; }
  .floating-stat { min-width: 120px; }
  .calc-grid { grid-template-columns: 1fr; }
  .section, .hero-section { padding: 48px 20px; }
}

@media (max-width: 600px) {
  .hero-title { font-size: 30px; }
  .hero-desc { font-size: 16px; }
  .metric-val { font-size: 34px; }
  .section-title { font-size: 26px; }
  .cta-title { font-size: 28px; }
  .savings-amount { font-size: 28px; }
  .fs-number { font-size: 28px; }
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 240, 255, 0.3);
}

/* Selection */
::selection {
  background: rgba(0, 240, 255, 0.2);
  color: var(--text-main);
}