/*
 * NeuroAttention Lab — Multi-page site styles
 * Design: Dark deep-tech premium aesthetic
 * Base: #05070A  Surface: #0D1117  Elevated: #151B24
 * Accent: Cyan #4ECDC4, Blue #3B82F6
 * Text: #E2E8F0 primary, #94A3B8 secondary, #64748B muted
 */

:root {
  --bg-base: #05070A;
  --bg-surface: #0D1117;
  --bg-elevated: #151B24;
  --accent-cyan: #4ECDC4;
  --accent-blue: #3B82F6;
  --accent-green: #22C55E;
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-dim: #475569;
  --text-faint: #334155;
  --border-faint: rgba(255, 255, 255, 0.04);
  --border-soft: rgba(255, 255, 255, 0.06);
  --glass-bg: rgba(13, 17, 23, 0.55);
  --glass-bg-bright: rgba(21, 27, 36, 0.72);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glow-cyan: rgba(78, 205, 196, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-base);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Atmosphere layers */
.deep-atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(59, 130, 246, 0.06), transparent 70%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(78, 205, 196, 0.05), transparent 70%),
    radial-gradient(ellipse 70% 50% at 80% 60%, rgba(78, 205, 196, 0.03), transparent 70%),
    linear-gradient(180deg, #05070A 0%, #070A10 50%, #05070A 100%);
  pointer-events: none;
}

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.12'/%3E%3C/svg%3E");
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* Typography */
.heading-space {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin: 0 0 1rem 0;
  display: block;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #4ECDC4 0%, #3B82F6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* Section spacing */
section {
  position: relative;
}

.section {
  padding: 5rem 0;
}

@media (min-width: 1024px) {
  .section {
    padding: 7rem 0;
  }
}

.section-divider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(78, 205, 196, 0.12) 50%, transparent 100%);
  pointer-events: none;
}

/* ═══════════════════════════════════════
   GLASS COMPONENTS
   ═══════════════════════════════════════ */

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: 0 0 0 0.5px rgba(255, 255, 255, 0.02) inset, 0 6px 24px rgba(0, 0, 0, 0.35);
}

.glass-card-elevated {
  background: var(--glass-bg-bright);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  box-shadow:
    0 0 0 0.5px rgba(255, 255, 255, 0.03) inset,
    0 10px 30px rgba(0, 0, 0, 0.4),
    0 0 50px rgba(78, 205, 196, 0.02);
}

.glass-card-bright {
  background: linear-gradient(135deg, rgba(78, 205, 196, 0.04) 0%, rgba(59, 130, 246, 0.02) 100%);
  backdrop-filter: blur(28px) saturate(1.6);
  -webkit-backdrop-filter: blur(28px) saturate(1.6);
  border: 1px solid rgba(78, 205, 196, 0.12);
  border-radius: 16px;
  box-shadow:
    0 0 0 0.5px rgba(255, 255, 255, 0.04) inset,
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 60px rgba(78, 205, 196, 0.04);
}

.glass-icon {
  background: linear-gradient(135deg, rgba(78, 205, 196, 0.12), rgba(59, 130, 246, 0.06));
  border: 1px solid rgba(78, 205, 196, 0.18);
  box-shadow: 0 0 0 0.5px rgba(78, 205, 196, 0.08) inset, 0 4px 12px rgba(0, 0, 0, 0.2);
}

.glass-image-frame {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 0 0 0.5px rgba(255, 255, 255, 0.03) inset,
    0 20px 50px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(78, 205, 196, 0.02);
}

.glow-cyan {
  box-shadow:
    0 0 0 0.5px rgba(78, 205, 196, 0.15) inset,
    0 10px 30px rgba(0, 0, 0, 0.4),
    0 0 60px rgba(78, 205, 196, 0.08);
}

.card-hover {
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.45s, border-color 0.45s;
}

.card-hover:hover {
  transform: translateY(-4px);
  border-color: rgba(78, 205, 196, 0.2);
  box-shadow:
    0 0 0 0.5px rgba(78, 205, 196, 0.1) inset,
    0 20px 45px rgba(0, 0, 0, 0.5),
    0 0 70px rgba(78, 205, 196, 0.06);
}

/* Chat bubbles (test page) */
.chat-bubble-bot {
  background: rgba(21, 27, 36, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px 16px 16px 4px;
  padding: 0.85rem 1.1rem;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
}

.chat-bubble-user {
  background: linear-gradient(135deg, rgba(78, 205, 196, 0.2), rgba(59, 130, 246, 0.14));
  border: 1px solid rgba(78, 205, 196, 0.25);
  border-radius: 16px 16px 4px 16px;
  padding: 0.85rem 1.1rem;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
}

.glass-badge {
  background: rgba(13, 17, 23, 0.7);
  border: 1px solid rgba(78, 205, 196, 0.2);
  color: var(--text-secondary);
  backdrop-filter: blur(16px);
}

.glass-input {
  background: rgba(13, 17, 23, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

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

.glass-input:focus {
  border-color: rgba(78, 205, 196, 0.4);
  box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  border: 1px solid transparent;
}

.btn-solid {
  background: linear-gradient(135deg, #4ECDC4 0%, #3B82F6 100%);
  color: #05070A;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(78, 205, 196, 0.18), 0 0 40px rgba(78, 205, 196, 0.1);
}

.btn-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(78, 205, 196, 0.28), 0 0 60px rgba(78, 205, 196, 0.16);
}

.btn-primary {
  background: rgba(13, 17, 23, 0.7);
  color: var(--text-primary);
  border: 1px solid rgba(78, 205, 196, 0.25);
  backdrop-filter: blur(16px);
}

.btn-primary:hover {
  border-color: rgba(78, 205, 196, 0.5);
  background: rgba(78, 205, 196, 0.06);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-ghost:hover {
  color: var(--accent-cyan);
  border-color: rgba(78, 205, 196, 0.3);
}

.btn .icon {
  transition: transform 0.3s;
}

.btn:hover .icon {
  transform: translateX(3px);
}

/* ═══════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.5s, backdrop-filter 0.5s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(5, 7, 10, 0.65);
  backdrop-filter: blur(32px) saturate(1.5);
  -webkit-backdrop-filter: blur(32px) saturate(1.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.nav-logo-icon {
  height: 1.4em;
  width: auto;
  display: block;
  transition: filter 0.4s ease, transform 0.4s ease;
}
.nav-logo:hover .nav-logo-icon {
  animation: logoPulse 1.2s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 6px rgba(0,224,255,0.35));
}
@keyframes logoPulse {
  0%   { transform: scale(1);    filter: drop-shadow(0 0 4px rgba(0,224,255,0.2)); }
  100% { transform: scale(1.08); filter: drop-shadow(0 0 10px rgba(0,224,255,0.45)); }
}

.nav-logo .lab {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-links {
  display: none;
  gap: 2px;
  align-items: center;
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.75rem;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  color: var(--text-muted);
  transition: color 0.3s, background-color 0.3s, border-color 0.3s;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--accent-cyan);
}

.nav-link.active {
  color: var(--text-primary);
  background: rgba(78, 205, 196, 0.08);
  border-color: rgba(78, 205, 196, 0.1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  padding: 3px;
  border-radius: 999px;
  background: rgba(13, 17, 23, 0.6);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
  font-weight: 600;
}

.lang-btn {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: var(--text-muted);
  transition: all 0.3s;
}

.lang-btn.active {
  background: rgba(78, 205, 196, 0.12);
  color: var(--accent-cyan);
}

.mobile-menu-btn {
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: 8px;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s;
  background: rgba(5, 7, 10, 0.8);
  backdrop-filter: blur(32px) saturate(1.5);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.mobile-menu.open {
  max-height: 500px;
  opacity: 1;
}

.mobile-menu-inner {
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-link {
  padding: 0.75rem 1rem;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  color: var(--text-muted);
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.mobile-link.active {
  color: var(--accent-cyan);
  background: rgba(78, 205, 196, 0.08);
  border-left-color: rgba(78, 205, 196, 0.4);
}

/* ═══════════════════════════════════════
   HERO & LAYOUT
   ═══════════════════════════════════════ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-max {
  max-width: 42rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw + 1rem, 4.25rem);
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.line-accent {
  width: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), transparent);
  margin-bottom: 1.5rem;
  border-radius: 2px;
}

.hero-sub {
  font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.65rem);
  line-height: 1.35;
  color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 400;
  margin: 0 0 1.5rem 0;
}

.hero-desc {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 32rem;
  margin: 0 0 2.5rem 0;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: pulse-soft 2.4s ease-in-out infinite;
}

.scroll-indicator .mouse {
  width: 20px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(78, 205, 196, 0.3);
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-indicator .dot {
  width: 3px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-cyan);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid {
    gap: 2rem;
  }
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.grid-7-5 {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  align-items: center;
}

@media (min-width: 1024px) {
  .grid-7-5 {
    grid-template-columns: 7fr 5fr;
    gap: 3.5rem;
  }
}

/* ═══════════════════════════════════════
   BLOCK ELEMENTS
   ═══════════════════════════════════════ */

.max-w-2xl {
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

.max-w-3xl {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.max-w-4xl {
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
}

.max-w-5xl {
  max-width: 64rem;
  margin-left: auto;
  margin-right: auto;
}

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

.h2-block {
  font-size: clamp(1.5rem, 2vw + 1rem, 2.25rem);
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0 0 1.25rem 0;
}

.h2-block.large {
  font-size: clamp(1.85rem, 3vw + 1rem, 2.75rem);
}

.sub-muted {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 1rem;
}

.card-base {
  padding: 1.75rem;
}

@media (min-width: 1024px) {
  .card-base {
    padding: 2rem;
  }
}

.card-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.icon-box {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon-box.lg {
  width: 3rem;
  height: 3rem;
}

.list-bullet {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.list-bullet li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 15px;
  color: var(--text-secondary);
}

.list-bullet .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent-cyan);
  flex-shrink: 0;
}

.list-bullet .dot.blue {
  background: var(--accent-blue);
}

.list-check {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.list-check li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 14px;
  color: var(--text-secondary);
}

.list-check .check {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Facts cards */
.fact-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .fact-card {
    flex-direction: row;
  }
  .fact-card.reverse {
    flex-direction: row-reverse;
  }
}

.fact-card .text {
  flex: 1;
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fact-card .num-badge {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
}

.fact-card .text p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

.fact-card .img-wrap {
  width: 100%;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .fact-card .img-wrap {
    width: 40%;
    min-height: 220px;
  }
}

.fact-card .img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7) contrast(1.1);
  transition: transform 0.7s;
}

.fact-card:hover .img-wrap img {
  transform: scale(1.05);
}

/* Stats block */
.stat-box {
  text-align: center;
  padding: 1.25rem;
  border-radius: 14px;
}

.stat-box .num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 2.2vw + 0.5rem, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #4ECDC4 0%, #3B82F6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
}

.stat-box .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Team photo */
.team-photo {
  width: 7rem;
  height: 7rem;
  border-radius: 999px;
  overflow: hidden;
  margin: 0 auto 1.25rem;
  border: 1px solid rgba(78, 205, 196, 0.2);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Quote block */
.quote {
  padding: 0 0 0 1.25rem;
  border-left: 2px solid rgba(78, 205, 196, 0.4);
  margin-bottom: 2rem;
  font-family: 'Space Grotesk', sans-serif;
  font-style: italic;
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */

.footer {
  position: relative;
  background: rgba(5, 7, 10, 0.8);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 3.5rem 0;
}

@media (min-width: 1024px) {
  .footer {
    padding: 4rem 0;
  }
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 4fr 3fr 3fr 2fr;
    gap: 3rem;
  }
}

.footer h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 1.25rem 0;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-dim);
  margin: 0;
}

.footer-bottom .tag {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}

/* ═══════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════ */

.fade-up,
.fade-left,
.fade-right,
.fade-scale {
  opacity: 0;
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up {
  transform: translateY(32px);
}

.fade-left {
  transform: translateX(-32px);
}

.fade-right {
  transform: translateX(32px);
}

.fade-scale {
  transform: scale(0.96);
}

.fade-up.visible,
.fade-left.visible,
.fade-right.visible,
.fade-scale.visible {
  opacity: 1;
  transform: none;
}

.delay-1 {
  transition-delay: 0.12s;
}

.delay-2 {
  transition-delay: 0.24s;
}

.delay-3 {
  transition-delay: 0.36s;
}

@keyframes pulse-soft {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

@keyframes glow-pulse {
  0%,
  100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

@keyframes shimmer-slide {
  0%,
  100% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(200%);
  }
}

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

@keyframes bounce-dot {
  0%,
  60%,
  100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-4px);
  }
}

.glow-orb {
  position: absolute;
  inset: -3rem;
  border-radius: 999px;
  filter: blur(48px);
  background: radial-gradient(circle, rgba(78, 205, 196, 0.08) 0%, transparent 70%);
  animation: glow-pulse 4.5s ease-in-out infinite;
  pointer-events: none;
}

/* Utility spacing */
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-14 { margin-bottom: 3.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }

/* SVG icon base */
.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke-width: 1.8;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon.sm {
  width: 14px;
  height: 14px;
}

.icon.md {
  width: 22px;
  height: 22px;
}

.icon.lg {
  width: 24px;
  height: 24px;
}

/* Chat specific */
.chat-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-top: 4.25rem;
}

.chat-header {
  background: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(78, 205, 196, 0.06);
}

.chat-header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 0;
}

.message {
  display: flex;
  margin-bottom: 1.25rem;
  animation: fadeSlideIn 0.3s ease-out;
}

.message.bot {
  justify-content: flex-start;
}

.message.user {
  justify-content: flex-end;
}

.message-inner {
  max-width: 85%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.message.bot .message-inner {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.75rem;
}

.message.user .message-inner {
  align-items: flex-end;
}

.bot-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.bot-content {
  flex: 1;
}

.option-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding-left: 2.75rem;
}

.option-btn {
  padding: 0.5rem 1rem;
  font-size: 13px;
  border-radius: 999px;
  transition: all 0.3s;
}

.option-btn:hover {
  border-color: rgba(78, 205, 196, 0.4);
  color: var(--accent-cyan);
  transform: scale(1.03);
}

.chat-input-wrap {
  border-top: 1px solid rgba(78, 205, 196, 0.06);
  background: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(20px);
  padding: 1rem 0;
}

.chat-input-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chat-input {
  flex: 1;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 14px;
}

.chat-send {
  padding: 0.85rem;
  border-radius: 12px;
}

.chat-send:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

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

.typing-dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-cyan);
  animation: bounce-dot 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(2) {
  animation-delay: 0.15s;
}

.typing-dots span:nth-child(3) {
  animation-delay: 0.3s;
}

/* Timeline steps */
.step-row {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  border-radius: 16px;
}

.step-num {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, #4ECDC4, #3B82F6);
  color: #05070A;
}

/* Program card */
.program-card {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  border-radius: 16px;
}

.program-card .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 0.5rem 0;
}

.program-card.accent .tag {
  color: var(--accent-cyan);
}

.program-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
}

.program-card p.desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 1.5rem 0;
}

.program-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
}

.program-card .list-check {
  margin-bottom: 2rem;
  flex: 1;
}

/* Publication card */
.pub-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: 12px;
  margin-bottom: 1rem;
}

.pub-card .title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
}

.pub-card .meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  margin: 0;
}

.pub-card .meta em {
  color: var(--text-muted);
}

/* Geography card */
.geo-card {
  padding: 1.5rem;
  border-radius: 16px;
}

.geo-card .region {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 0.5rem 0;
}

.geo-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
}

/* Skill row */
.skill-row {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  border-radius: 16px;
}

@media (min-width: 1024px) {
  .skill-row {
    padding: 2rem;
  }
}

.skill-row .num {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, #4ECDC4, #3B82F6);
  color: #05070A;
}

.skill-row h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.125rem;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
}

.skill-row .brain {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  font-style: italic;
  margin: 0.5rem 0 0 0;
}

.skill-row p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

.skill-row .header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

/* hide svg when screen small for the hero images? - no, keep */

/* Hero side image placeholder */
.hero-side-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
}

.hero-side-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
}

/* Ecosystem pillars */
.pillar {
  padding: 1.25rem;
  text-align: center;
  border-radius: 16px;
}

.pillar .icon-box {
  margin: 0 auto 0.75rem;
}

.pillar p {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

/* ═══════════════════════════════════════
   TEST PAGE LAYOUT
   ═══════════════════════════════════════ */

.test-body {
  min-height: 100vh;
}

.test-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 4.5rem;
  position: relative;
  z-index: 1;
}

.test-header {
  background-color: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(78, 205, 196, 0.06);
}

.test-header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.test-back {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text-muted);
  transition: color 0.25s, background 0.25s;
}

.test-back:hover {
  color: var(--accent-cyan);
  background: rgba(78, 205, 196, 0.06);
}

.mono-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.test-messages {
  flex: 1;
  overflow-y: auto;
  min-height: 55vh;
  max-height: calc(100vh - 14rem);
  padding: 1.5rem 0;
}

.test-messages > .container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.chat-row {
  display: flex;
  animation: fadeSlideIn 0.35s ease-out both;
}

.chat-row.user {
  justify-content: flex-end;
}

.chat-row.bot {
  justify-content: flex-start;
  gap: 0.75rem;
  align-items: flex-start;
}

.chat-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.15rem;
}

.chat-stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 85%;
}

.chat-row.bot .chat-bubble-bot {
  font-size: 14px;
  line-height: 1.65;
}

.chat-row.user .chat-bubble-user {
  font-size: 14px;
  line-height: 1.65;
  max-width: 80%;
}

.chat-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chat-options .option-btn {
  background: rgba(13, 17, 23, 0.7);
  border: 1px solid rgba(78, 205, 196, 0.2);
  color: var(--text-muted);
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  backdrop-filter: blur(16px);
}

.chat-options .option-btn.disabled,
.chat-options .option-btn:disabled {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
  transform: none;
}

.test-input-bar {
  border-top: 1px solid rgba(78, 205, 196, 0.06);
  background: rgba(13, 17, 23, 0.9);
  backdrop-filter: blur(20px);
  padding: 1rem 0;
  position: sticky;
  bottom: 0;
}

.test-input-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.test-input-row .glass-input {
  flex: 1;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-size: 14px;
}

.test-input-row .btn.btn-solid {
  padding: 0.85rem 1rem;
  border-radius: 12px;
}

@media (max-width: 640px) {
  .chat-stack { max-width: 92%; }
  .test-messages { padding: 1rem 0; }
}