/* ==========================================================================
   FDE.AIHOT.VN — ARCHITECTURAL BESPOKE DESIGN SYSTEM
   High-Impact Technical Luxury (Palantir Foundry × Linear × Savile Row Bespoke)
   ========================================================================== */

:root {
  --bg-deep: #03060e;
  --bg-surface: #080e1e;
  --bg-elevated: rgba(12, 20, 40, 0.76);
  --bg-elevated-hover: rgba(17, 28, 56, 0.92);
  --bg-glass: rgba(6, 10, 22, 0.82);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-accent: rgba(56, 189, 248, 0.42);
  --border-gold: rgba(245, 158, 11, 0.42);
  --accent-cyan: #00f0ff;
  --accent-blue: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-violet: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --shadow-xl: 0 24px 60px -15px rgba(0, 0, 0, 0.75);
  --glow-cyan: 0 0 40px rgba(0, 240, 255, 0.18);
  --glow-indigo: 0 0 45px rgba(99, 102, 241, 0.22);
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 12px;
}

html[data-theme="light"] {
  --bg-deep: #f4f7fb;
  --bg-surface: #ffffff;
  --bg-elevated: rgba(255, 255, 255, 0.9);
  --bg-elevated-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --border-subtle: rgba(15, 23, 42, 0.1);
  --border-accent: rgba(2, 132, 199, 0.38);
  --border-gold: rgba(217, 119, 6, 0.38);
  --accent-cyan: #0284c7;
  --accent-blue: #2563eb;
  --accent-indigo: #4f46e5;
  --accent-violet: #7c3aed;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --shadow-xl: 0 20px 45px -15px rgba(15, 23, 42, 0.1);
  --glow-cyan: 0 10px 30px rgba(2, 132, 199, 0.14);
  --glow-indigo: 0 10px 30px rgba(79, 70, 229, 0.14);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-deep);
  color: var(--text-primary);
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.62;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Subtle Architectural Grid Overlay + Canvas */
.arch-grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 25%, #000 35%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 25%, #000 35%, transparent 100%);
}

#hero-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.68;
}

html[data-theme="light"] #hero-canvas {
  opacity: 0.22;
}

.aurora-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.aurora-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: driftOrb 20s ease-in-out infinite alternate;
}

html[data-theme="light"] .aurora-orb {
  opacity: 0.14;
}

.aurora-orb.orb-1 {
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, #00f0ff 0%, transparent 70%);
  top: -200px;
  left: -140px;
}

.aurora-orb.orb-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
  top: 15%;
  right: -220px;
  animation-delay: -7s;
}

.aurora-orb.orb-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #f59e0b 0%, transparent 70%);
  bottom: 4%;
  left: 22%;
  opacity: 0.16;
  animation-delay: -13s;
}

@keyframes driftOrb {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(40px, -25px, 0) scale(1.06); }
  100% { transform: translate3d(-25px, 30px, 0) scale(0.95); }
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.88); }
}

@keyframes dashFlow {
  to { stroke-dashoffset: -48; }
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.16), rgba(99, 102, 241, 0.24));
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-cyan);
  color: var(--accent-cyan);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-text-group {
  display: flex;
  flex-direction: column;
}

.brand-domain {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid var(--border-accent);
  color: var(--accent-cyan);
  letter-spacing: 0.03em;
}

.brand-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(148, 163, 184, 0.1);
}

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

.btn-theme {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-theme svg {
  width: 15px;
  height: 15px;
  color: var(--accent-cyan);
}

.btn-theme:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1px solid rgba(0, 240, 255, 0.45);
  background: linear-gradient(135deg, #0284c7 0%, #4f46e5 55%, #7c3aed 100%);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 10px 28px -6px rgba(79, 70, 229, 0.6);
  transition: all 0.25s ease;
}

.btn-primary svg {
  width: 17px;
  height: 17px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -6px rgba(0, 240, 255, 0.45);
  filter: brightness(1.08);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.22s ease;
}

.btn-secondary svg {
  width: 17px;
  height: 17px;
  color: var(--accent-cyan);
}

.btn-secondary:hover {
  border-color: var(--border-accent);
  background: var(--bg-elevated-hover);
  transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
  padding: 68px 0 56px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 44px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 15px;
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.3);
  margin-bottom: 22px;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulseDot 2s infinite;
}

.status-pill-text {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.hero-title {
  font-size: clamp(2.2rem, 4.3vw, 3.7rem);
  font-weight: 700;
  line-height: 1.13;
  letter-spacing: -0.028em;
  margin-bottom: 20px;
}

.gradient-text-cyan {
  background: linear-gradient(95deg, #00f0ff 0%, #38bdf8 38%, #818cf8 78%, #c084fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

html[data-theme="light"] .gradient-text-cyan {
  background: linear-gradient(95deg, #0284c7 0%, #2563eb 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gradient-text-gold {
  background: linear-gradient(95deg, #fbbf24 0%, #f59e0b 55%, #fb7185 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 630px;
}

.hero-lead strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.btn-lg {
  padding: 14px 26px;
  font-size: 0.9375rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.hero-stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  backdrop-filter: blur(12px);
  transition: all 0.25s ease;
}

.hero-stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.stat-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.stat-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 2px;
}

.stat-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Right Hero: Architectural Blueprint Cockpit */
.cockpit-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-xl), var(--glow-indigo);
  backdrop-filter: blur(22px);
  overflow: hidden;
}

.cockpit-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-indigo), var(--accent-amber));
}

.cockpit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

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

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.35);
}

.window-dots span:nth-child(1) { background: #f43f5e; }
.window-dots span:nth-child(2) { background: #f59e0b; }
.window-dots span:nth-child(3) { background: #10b981; }

.cockpit-title {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.user-seat-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: var(--accent-emerald);
}

/* Animated SVG Architecture Diagram inside Cockpit */
.schematic-box {
  background: rgba(4, 8, 18, 0.68);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 14px;
}

html[data-theme="light"] .schematic-box {
  background: #0f172a;
  color: #f8fafc;
}

.schematic-svg {
  width: 100%;
  height: auto;
  display: block;
}

.flow-path {
  fill: none;
  stroke: rgba(56, 189, 248, 0.25);
  stroke-width: 1.5;
}

.flow-pulse {
  fill: none;
  stroke: #00f0ff;
  stroke-width: 2;
  stroke-dasharray: 8 16;
  animation: dashFlow 1.8s linear infinite;
}

.flow-pulse.gold {
  stroke: #fbbf24;
  animation-duration: 2.2s;
}

.cockpit-kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.cockpit-kpi {
  padding: 12px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-subtle);
}

html[data-theme="light"] .cockpit-kpi {
  background: rgba(241, 245, 249, 0.9);
}

.cockpit-kpi-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.cockpit-kpi-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.cockpit-kpi-delta {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
}

.cockpit-terminal {
  background: #050812;
  color: #e2e8f0;
  border: 1px solid rgba(56, 189, 248, 0.24);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-size: 0.75rem;
  line-height: 1.55;
}

.term-line {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.t-cyan { color: #38bdf8; }
.t-green { color: #34d399; }
.t-gold { color: #fbbf24; }

/* Spotlight Hover Card Physics */
.spotlight-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(16px);
  transition: transform 0.25s ease, border-color 0.25s ease;
  overflow: hidden;
}

.spotlight-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    520px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 240, 255, 0.09),
    transparent 45%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.spotlight-card:hover::after {
  opacity: 1;
}

/* Section Generic Styling */
.section-block {
  padding: 76px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 48px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.34);
  color: var(--accent-blue);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.section-eyebrow svg {
  width: 15px;
  height: 15px;
}

.section-title {
  font-size: clamp(1.8rem, 3.3vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.18;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Section 1: Dual Core Pillars */
.dual-concepts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 36px;
}

.pillar-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.pillar-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.14), rgba(99, 102, 241, 0.2));
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.pillar-icon-box.gold {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.16), rgba(244, 63, 94, 0.18));
  border-color: var(--border-gold);
  color: var(--accent-amber);
}

.pillar-icon-box svg {
  width: 28px;
  height: 28px;
}

.pillar-code {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.concept-title {
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 14px;
}

.concept-quote-box {
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  background: rgba(0, 240, 255, 0.06);
  border-left: 3px solid var(--accent-cyan);
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.gold-card .concept-quote-box {
  background: rgba(245, 158, 11, 0.07);
  border-left-color: var(--accent-amber);
}

.concept-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.concept-points li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.check-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.45);
  color: var(--accent-emerald);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
}

.check-dot svg {
  width: 12px;
  height: 12px;
}

/* Comparison Table */
.comparison-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 28px;
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.875rem;
}

.comparison-table th {
  font-weight: 700;
  color: var(--text-primary);
}

.comparison-table th.highlight-col,
.comparison-table td.highlight-col {
  background: rgba(0, 240, 255, 0.07);
  border-left: 1px solid var(--border-accent);
  border-right: 1px solid var(--border-accent);
  color: var(--text-primary);
  font-weight: 600;
}

/* Section 2: Interactive Live Simulator */
.simulator-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.sim-tab-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 15px 18px;
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all 0.22s ease;
}

.sim-tab-code {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.sim-tab-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sim-tab-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.sim-tab-btn:hover {
  border-color: var(--border-accent);
}

.sim-tab-btn.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.14), rgba(99, 102, 241, 0.22));
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.simulator-stage {
  background: var(--bg-elevated);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-xl);
}

.sim-top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border-subtle);
}

.sim-persona-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 4px 0;
}

.sim-persona-sub {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.sim-pain-solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 22px;
}

.pain-box, .solution-box {
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
}

.pain-box {
  background: rgba(244, 63, 94, 0.07);
  border: 1px solid rgba(244, 63, 94, 0.26);
}

.solution-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.box-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  display: block;
}

.pain-box .box-label { color: var(--accent-rose); }
.solution-box .box-label { color: var(--accent-emerald); }

.sim-pipeline-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.25fr 1fr;
  gap: 18px;
  align-items: stretch;
}

.pipeline-col {
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

html[data-theme="light"] .pipeline-col {
  background: rgba(241, 245, 249, 0.85);
}

.pipeline-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-chip-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-chip {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 9px;
}

.chip-bullet {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  flex-shrink: 0;
}

.terminal-window {
  background: #050811;
  color: #e2e8f0;
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 0.75rem;
  line-height: 1.65;
  flex: 1;
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.terminal-step {
  padding: 6px 9px;
  border-radius: 6px;
  background: rgba(30, 41, 59, 0.45);
  border-left: 3px solid var(--accent-cyan);
  transition: all 0.25s ease;
}

.terminal-step.running {
  background: rgba(0, 240, 255, 0.16);
  border-left-color: var(--accent-amber);
}

.output-card-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.output-item {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}

.output-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.output-item-label {
  font-size: 0.8125rem;
  font-weight: 700;
}

.output-item-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
}

.output-item-val {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.sim-metrics-bar {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.sim-metric-box {
  padding: 12px 15px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid var(--border-subtle);
}

/* Section 3: 6 Capabilities Bento Grid */
.bento-grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

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

.bento-svg-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.bento-svg-box svg {
  width: 24px;
  height: 24px;
}

.bento-num {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
}

.bento-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.bento-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.bento-foot {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.02em;
}

/* Section 4: 5-Step Workflow */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.step-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  transition: all 0.25s ease;
}

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

.step-index {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.12);
  margin-bottom: 12px;
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Section 5: Interactive ROI Calculator */
.roi-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: stretch;
}

.slider-group {
  margin-bottom: 22px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.875rem;
  font-weight: 600;
}

.slider-val-badge {
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.14);
  border: 1px solid rgba(0, 240, 255, 0.35);
  color: var(--accent-cyan);
  font-size: 0.8125rem;
  font-weight: 700;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-cyan);
  height: 8px;
  border-radius: 999px;
  cursor: pointer;
}

.channel-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.channel-tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.45);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

html[data-theme="light"] .channel-tag-btn {
  background: rgba(241, 245, 249, 0.9);
}

.channel-tag-btn.selected {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
}

.roi-result-panel {
  background: linear-gradient(145deg, rgba(12, 20, 42, 0.95), rgba(28, 25, 70, 0.88));
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #f8fafc;
  box-shadow: var(--glow-indigo);
}

.roi-big-number {
  font-size: clamp(2rem, 3.5vw, 2.85rem);
  font-weight: 700;
  color: #00f0ff;
  line-height: 1.15;
  margin: 8px 0 4px;
}

.roi-kpi-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 20px 0;
}

.roi-kpi-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.roi-kpi-val {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fbbf24;
}

.roi-kpi-lbl {
  font-size: 0.75rem;
  color: #cbd5e1;
}

/* Section 6: Booking & Live Feed */
.booking-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 28px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.55);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

html[data-theme="light"] .form-control {
  background: #ffffff;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
}

textarea.form-control {
  min-height: 110px;
  resize: vertical;
}

.receipt-banner {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.45);
  display: none;
}

.receipt-banner.visible {
  display: block;
}

.live-feed-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 520px;
  overflow-y: auto;
}

.feed-card {
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  background: rgba(15, 23, 42, 0.48);
  border: 1px solid var(--border-subtle);
}

html[data-theme="light"] .feed-card {
  background: rgba(241, 245, 249, 0.9);
}

.feed-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.feed-receipt {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 240, 255, 0.14);
  color: var(--accent-cyan);
}

.feed-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.feed-client {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.feed-summary {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.feed-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.site-footer {
  padding: 44px 0;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  margin-top: 40px;
}

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

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

@media (max-width: 1080px) {
  .hero-grid,
  .dual-concepts-grid,
  .sim-pipeline-grid,
  .roi-grid,
  .booking-grid {
    grid-template-columns: 1fr;
  }
  .bento-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .simulator-tabs {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-links {
    display: none;
  }
  .hero-stats-grid,
  .bento-grid-6,
  .workflow-grid,
  .simulator-tabs,
  .sim-pain-solution-grid,
  .sim-metrics-bar,
  .form-row-2 {
    grid-template-columns: 1fr;
  }
  .section-block {
    padding: 48px 0;
  }
  .spotlight-card {
    padding: 20px;
  }
}