/* ==========================================================================
   AI BABA (aibaba.uk) - Modern Dynamic Stylesheet
   ========================================================================== */

/* Modern CSS Custom Property Registration (per Modern Web Guidance) */
@property --spotlight-size {
  syntax: "<length>";
  inherits: true;
  initial-value: 380px;
}

@property --spotlight-opacity {
  syntax: "<number>";
  inherits: true;
  initial-value: 0.15;
}

:root {
  /* Color Palette */
  --bg-darkest: #05070c;
  --bg-dark: #080c16;
  --bg-card: rgba(13, 19, 33, 0.72);
  --bg-card-hover: rgba(18, 26, 46, 0.82);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 240, 255, 0.28);

  --accent-cyan: #00f0ff;
  --accent-cyan-rgb: 0, 240, 255;
  --accent-purple: #8b5cf6;
  --accent-purple-rgb: 139, 92, 246;
  --accent-gold: #fbbf24;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-blue: #3b82f6;

  --text-main: #f3f4f8;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing & Spacing */
  --container-max: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Motion */
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-darkest);
  color: var(--text-main);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-darkest);
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 100% 50%, rgba(0, 240, 255, 0.05) 0%, transparent 40%);
}

/* Background Canvas (Hardware-accelerated) */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  display: block;
}

/* Pointer Spotlight Overlay */
.pointer-spotlight {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(
    var(--spotlight-size) circle at var(--mouse-x, 50vw) var(--mouse-y, 40vh),
    rgba(var(--accent-cyan-rgb), var(--spotlight-opacity)),
    rgba(var(--accent-purple-rgb), calc(var(--spotlight-opacity) * 0.4)) 40%,
    transparent 75%
  );
  transition: --spotlight-size var(--transition-normal), --spotlight-opacity var(--transition-normal);
}

/* Subtle Film Texture */
.cinematic-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Layout */
.app-layout {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Typography & Utility */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #00f0ff 40%, #a78bfa 80%, #fbbf24 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.sub-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-header {
  margin-bottom: 56px;
}

.text-center {
  text-align: center;
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--text-muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  color: #06080e;
  background: linear-gradient(135deg, #00f0ff 0%, #38bdf8 50%, #818cf8 100%);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

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

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  color: var(--accent-cyan);
  border-color: rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.08);
}

.hidden {
  display: none !important;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
  backdrop-filter: blur(16px);
  background: rgba(6, 8, 14, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: padding var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.logo-symbol {
  position: relative;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-symbol.small {
  width: 28px;
  height: 28px;
}

.symbol-core {
  width: 14px;
  height: 14px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 4px;
  transform: rotate(45deg);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.8);
  animation: pulse-core 3s infinite ease-in-out;
}

.symbol-ring {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(0, 240, 255, 0.4);
  border-radius: 8px;
  transform: rotate(15deg);
  animation: rotate-ring 8s infinite linear;
}

@keyframes pulse-core {
  0%, 100% { transform: rotate(45deg) scale(1); filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.6)); }
  50% { transform: rotate(45deg) scale(1.15); filter: drop-shadow(0 0 16px rgba(139, 92, 246, 0.9)); }
}

@keyframes rotate-ring {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #ffffff;
}

.domain-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  opacity: 0.9;
  letter-spacing: 0.05em;
}

.main-nav .nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

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

.nav-link:hover {
  color: #ffffff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.canvas-mode-picker {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn:hover {
  color: #fff;
}

.mode-btn.active {
  background: rgba(0, 240, 255, 0.16);
  color: var(--accent-cyan);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding-top: clamp(60px, 9vh, 120px);
  padding-bottom: 80px;
  text-align: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.domain-announcement {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(13, 20, 38, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  margin-bottom: 28px;
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-beacon 1.5s infinite;
}

@keyframes pulse-beacon {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.announcement-text {
  font-size: 0.88rem;
  color: var(--text-main);
}

.announcement-text strong {
  color: var(--accent-cyan);
}

.badge-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: rgba(139, 92, 246, 0.25);
  color: #c4b5fd;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.hero-title {
  font-size: clamp(2.5rem, 6.2vw, 5.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  max-width: 950px;
}

.hero-brand-glow {
  text-shadow: 0 0 40px rgba(0, 240, 255, 0.4);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.6;
  margin-bottom: 44px;
}

/* Interactive Prompt Box */
.hero-prompt-box {
  width: 100%;
  max-width: 780px;
  margin-bottom: 56px;
}

.prompt-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(11, 16, 28, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-radius: var(--radius-full);
  padding: 6px 8px 6px 20px;
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(0, 240, 255, 0.15);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.prompt-input-wrapper:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 45px rgba(0, 0, 0, 0.6), 0 0 35px rgba(0, 240, 255, 0.35);
}

.terminal-prefix {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 1.2rem;
  font-weight: 700;
  margin-right: 12px;
  user-select: none;
}

#hero-prompt-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 1rem;
  font-family: var(--font-sans);
}

#hero-prompt-input::placeholder {
  color: var(--text-dim);
}

.prompt-action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #00f0ff, #8b5cf6);
  border: none;
  color: #06080e;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.prompt-action-btn:hover {
  transform: scale(1.04);
  filter: brightness(1.15);
}

.prompt-suggestions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.suggestion-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 500;
}

.chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip:hover {
  background: rgba(0, 240, 255, 0.1);
  color: #ffffff;
  border-color: rgba(0, 240, 255, 0.4);
  transform: translateY(-1px);
}

/* Hero Stats Strip */
.hero-stats-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  padding: 16px 32px;
  background: rgba(13, 19, 33, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  backdrop-filter: blur(12px);
}

.stat-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-val {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  font-family: var(--font-mono);
}

.stat-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 28px;
  background: var(--border-subtle);
}

/* Scroll Hint */
.hero-scroll-hint {
  margin-top: 48px;
}

.hero-scroll-hint a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.hero-scroll-hint a:hover {
  color: var(--accent-cyan);
}

.scroll-mouse {
  width: 20px;
  height: 32px;
  border: 2px solid var(--text-dim);
  border-radius: 12px;
  position: relative;
}

.scroll-wheel {
  width: 3px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-bob 2s infinite ease-in-out;
}

@keyframes scroll-bob {
  0% { transform: translate(-50%, 0); opacity: 1; }
  80% { transform: translate(-50%, 10px); opacity: 0; }
  100% { transform: translate(-50%, 0); opacity: 0; }
}

/* 3D Tilt Cards */
.tilt-card {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.12s ease-out, border-color var(--transition-fast), box-shadow var(--transition-fast);
  will-change: transform;
}

/* Terminal Console (Playground) */
.playground-section {
  padding: 80px 0;
}

.terminal-card {
  max-width: 1020px;
  margin: 0 auto;
  background: rgba(10, 15, 26, 0.88);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(0, 240, 255, 0.1);
  backdrop-filter: blur(20px);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(6, 9, 16, 0.95);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

.ctrl-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.ctrl-dot.red { background: #ff5f56; }
.ctrl-dot.yellow { background: #ffbd2e; }
.ctrl-dot.green { background: #27c93f; }

.terminal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.terminal-model-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
  animation: pulse-beacon 1.2s infinite;
}

.terminal-body {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 480px;
}

.console-sidebar {
  padding: 20px;
  background: rgba(8, 12, 22, 0.6);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.model-select-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.model-btn {
  text-align: left;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.model-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
}

.model-btn.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
}

.model-btn .m-name {
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.model-btn .m-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.telemetry-box {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  background: rgba(5, 8, 15, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.telemetry-item {
  display: flex;
  justify-content: space-between;
}

.t-label {
  color: var(--text-dim);
}

.t-value {
  color: var(--accent-cyan);
  font-weight: 600;
}

.console-main {
  display: flex;
  flex-direction: column;
  height: 520px;
  position: relative;
}

.chat-viewport {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  scroll-behavior: smooth;
}

.chat-message {
  display: flex;
  gap: 16px;
  max-width: 90%;
  animation: fadeInMsg 0.3s ease-out;
}

@keyframes fadeInMsg {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.msg-avatar {
  position: relative;
  width: 38px;
  height: 38px;
  min-width: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.72rem;
  background: linear-gradient(135deg, #00f0ff, #8b5cf6);
  color: #06080e;
}

.chat-message.user .msg-avatar {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.msg-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.msg-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.msg-author {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.chat-message.user .msg-author {
  color: #ffffff;
}

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

.msg-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.chat-message.user .msg-text {
  background: rgba(0, 240, 255, 0.1);
  border-color: rgba(0, 240, 255, 0.25);
}

.msg-text pre {
  margin-top: 10px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #38bdf8;
  overflow-x: auto;
}

.terminal-input-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(8, 12, 20, 0.95);
  border-top: 1px solid var(--border-subtle);
}

#console-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 12px 20px;
  color: #ffffff;
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

#console-input:focus {
  border-color: var(--accent-cyan);
}

.console-send-button {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #06080e;
  font-weight: 700;
  font-size: 0.88rem;
  border: none;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.console-send-button:hover {
  transform: scale(1.03);
}

/* Features Grid */
.features-section {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  backdrop-filter: blur(16px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 240, 255, 0.15);
}

.card-glow {
  position: absolute;
  top: var(--mouse-y, 0);
  left: var(--mouse-x, 0);
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.feature-card:hover .card-glow {
  opacity: 1;
}

.card-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
}

.card-icon-wrapper.cyan { background: rgba(0, 240, 255, 0.12); color: var(--accent-cyan); }
.card-icon-wrapper.purple { background: rgba(139, 92, 246, 0.12); color: var(--accent-purple); }
.card-icon-wrapper.gold { background: rgba(251, 191, 36, 0.12); color: var(--accent-gold); }
.card-icon-wrapper.emerald { background: rgba(16, 185, 129, 0.12); color: var(--accent-emerald); }
.card-icon-wrapper.blue { background: rgba(59, 130, 246, 0.12); color: var(--accent-blue); }
.card-icon-wrapper.rose { background: rgba(244, 63, 94, 0.12); color: var(--accent-rose); }

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #ffffff;
}

.card-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex: 1;
}

.card-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 26px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 18px;
}

.card-specs li {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  display: flex;
  align-items: center;
}

.card-specs li::before {
  content: '▸';
  color: var(--accent-cyan);
  margin-right: 8px;
}

.card-footer-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  cursor: pointer;
  transition: gap var(--transition-fast);
}

.feature-card:hover .card-footer-link {
  gap: 12px;
}

/* Architecture Section */
.architecture-section {
  padding: 80px 0;
}

.glass-panel {
  background: rgba(11, 17, 30, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
}

.arch-box {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  padding: 60px;
  align-items: center;
}

.arch-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 28px;
}

.arch-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.arch-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.arch-feature-item strong {
  color: #fff;
}

.check-icon {
  width: 22px;
  height: 22px;
  min-width: 22px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}

.arch-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Architecture Visual Sphere */
.arch-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
}

.neural-sphere {
  position: relative;
  width: 260px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sphere-core {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-cyan) 0%, var(--accent-purple) 70%, transparent 100%);
  filter: drop-shadow(0 0 35px rgba(0, 240, 255, 0.8));
  animation: pulse-core-sphere 4s infinite ease-in-out;
}

@keyframes pulse-core-sphere {
  0%, 100% { transform: scale(0.95); opacity: 0.85; }
  50% { transform: scale(1.15); opacity: 1; }
}

.sphere-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed rgba(0, 240, 255, 0.35);
}

.ring-1 {
  width: 170px;
  height: 170px;
  animation: spin-ring-1 12s infinite linear;
}

.ring-2 {
  width: 230px;
  height: 230px;
  border-color: rgba(139, 92, 246, 0.35);
  animation: spin-ring-2 18s infinite linear reverse;
}

.ring-3 {
  width: 290px;
  height: 290px;
  border-color: rgba(251, 191, 36, 0.25);
  animation: spin-ring-1 25s infinite linear;
}

@keyframes spin-ring-1 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spin-ring-2 {
  from { transform: rotate(0deg) rotateX(45deg); }
  to { transform: rotate(360deg) rotateX(45deg); }
}

.floating-data-chip {
  position: absolute;
  background: rgba(9, 14, 25, 0.9);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

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

.chip-1 { top: 10%; right: -20px; animation: float-1 4s infinite ease-in-out; }
.chip-2 { bottom: 12%; left: -30px; animation: float-2 5s infinite ease-in-out; }
.chip-3 { bottom: -10px; right: 20px; animation: float-3 4.5s infinite ease-in-out; }

@keyframes float-1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes float-2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}
@keyframes float-3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Metrics Section */
.metrics-section {
  padding: 80px 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.metric-card {
  background: rgba(11, 16, 28, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.35);
}

.metric-number {
  font-size: clamp(2.4rem, 3.5vw, 3.2rem);
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 8px;
}

.metric-title {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.metric-detail {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* Access / Open Sesame Section */
.access-section {
  padding: 100px 0;
}

.access-card {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 70px 40px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
}

.access-glow-orb {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.18) 0%, rgba(139, 92, 246, 0.1) 40%, transparent 70%);
  pointer-events: none;
}

.access-title {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 800;
  margin-bottom: 18px;
}

.access-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 36px auto;
  line-height: 1.6;
}

.access-form {
  max-width: 540px;
  margin: 0 auto;
}

.form-input-group {
  display: flex;
  gap: 12px;
  background: rgba(6, 9, 16, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 6px 8px 6px 20px;
  border-radius: var(--radius-full);
}

.form-input-group input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.95rem;
}

.form-input-group input::placeholder {
  color: var(--text-dim);
}

.form-feedback {
  margin-top: 14px;
  font-size: 0.88rem;
  padding: 10px 18px;
  border-radius: var(--radius-full);
}

.form-feedback.success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.form-feedback.error {
  background: rgba(244, 63, 94, 0.15);
  border: 1px solid rgba(244, 63, 94, 0.4);
  color: #fb7185;
}

.access-trust-strip {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.trust-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.trust-pill {
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(4, 6, 10, 0.9);
  padding: 60px 0 30px 0;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 50px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 360px;
}

.domain-registered-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.ping-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  animation: pulse-beacon 1.5s infinite;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .terminal-body {
    grid-template-columns: 1fr;
  }
  .console-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }
  .arch-box {
    grid-template-columns: 1fr;
    padding: 36px 24px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .hero-stats-strip {
    flex-direction: column;
    gap: 16px;
  }
  .stat-divider {
    display: none;
  }
  .footer-links-grid {
    grid-template-columns: 1fr 1fr;
  }
  .form-input-group {
    flex-direction: column;
    border-radius: var(--radius-lg);
    padding: 12px;
  }
  .form-input-group input {
    padding: 8px 0;
  }
}

/* Typing Indicator & Dot Pulse */
.typing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.dot-pulse {
  display: inline-block;
  animation: blinkDots 1.4s infinite;
}

@keyframes blinkDots {
  0%, 20% { opacity: 0.2; }
  50% { opacity: 1; }
  100% { opacity: 0.2; }
}

/* Glow button shimmer effect */
.glow-button {
  position: relative;
  overflow: hidden;
}

.glow-button::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: rotate(25deg) translateY(-120%);
  transition: transform 0.65s ease;
}

.glow-button:hover::after {
  transform: rotate(25deg) translateY(120%);
}

/* Reduced Motion Override (Mandatory per Accessibility Guidelines) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .tilt-card {
    transform: none !important;
  }
  .symbol-core, .symbol-ring, .sphere-core, .ring-1, .ring-2, .ring-3 {
    animation: none !important;
  }
}