/* ===== Variables & reset ===== */
:root {
  --bg: #0a0b0f;
  --bg-card: rgba(15, 17, 26, 0.85);
  --border: rgba(54, 104, 207, 0.35);
  --accent: #3668cf;
  --accent-bright: #4d7ee8;
  --accent-glow: rgba(54, 104, 207, 0.4);
  --text: #e8eaef;
  --text-muted: #8b92a8;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
}
@media (hover: hover) and (pointer: fine) {
  body.custom-cursor-active { cursor: none; }
  body.custom-cursor-active a, body.custom-cursor-active button { cursor: none; }
}

/* ===== Noise overlay ===== */
.noise {
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 100;
}

/* ===== Grid background ===== */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ===== Custom cursor ===== */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent-bright);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.08s ease-out, width 0.2s, height 0.2s, background 0.2s;
  box-shadow: 0 0 20px var(--accent-glow);
}
.cursor-dot.hover {
  width: 48px;
  height: 48px;
  background: transparent;
  border: 2px solid var(--accent-bright);
  box-shadow: 0 0 30px var(--accent-glow);
}
.cursor-ring {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 2px solid rgba(54, 104, 207, 0.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease-out, width 0.25s, height 0.25s, border-color 0.2s, opacity 0.2s;
}
.cursor-ring.hover {
  width: 64px;
  height: 64px;
  border-color: var(--accent-bright);
  opacity: 0.6;
}
@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none !important; }
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(54, 104, 207, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(54, 104, 207, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 1rem 2rem;
  transition: background var(--transition), backdrop-filter var(--transition);
}
.header.scrolled {
  background: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color var(--transition), text-shadow var(--transition);
}
.logo:hover {
  color: var(--accent-bright);
  text-shadow: 0 0 24px var(--accent-glow);
}
.logo-bracket { color: var(--accent); opacity: 0.9; }
.logo-text { margin: 0 2px; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  -webkit-appearance: none;
  appearance: none;
}
button.btn {
  color: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #284a9e);
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
}
.btn-ghost {
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: transparent;
}
.btn-ghost:hover {
  color: var(--accent-bright);
  border-color: var(--accent);
  background: rgba(54, 104, 207, 0.08);
}
.btn-large { padding: 18px 36px; font-size: 1.1rem; }

/* ===== Bouton Inviter : wrapper + ronds animés + hover + clic ===== */
.invite-btn-wrap {
  position: relative;
  display: inline-block;
  margin: 1rem 0;
}

@keyframes inviteRingPulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(0.9) rotate(0deg);
    opacity: 0.7;
    border-color: rgba(54, 104, 207, 0.5);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2) rotate(180deg);
    opacity: 0.2;
    border-color: rgba(54, 104, 207, 0.2);
  }
}

.invite-btn-wrap:hover .invite-ring {
  animation-duration: 2s;
  border-color: rgba(77, 126, 232, 0.5);
}

#invite-btn {
  position: relative;
  z-index: 1;
  animation: inviteBtnPulse 2.5s ease-in-out infinite;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease,
              background 0.3s ease,
              filter 0.3s ease;
}

@keyframes inviteBtnPulse {
  0%, 100% {
    box-shadow: 0 4px 24px rgba(54, 104, 207, 0.4), 0 0 0 0 rgba(54, 104, 207, 0.3);
  }
  50% {
    box-shadow: 0 6px 32px rgba(54, 104, 207, 0.6), 0 0 0 12px rgba(54, 104, 207, 0);
  }
}

#invite-btn:hover {
  animation: none;
  transform: translateY(-8px) scale(1.08);
  box-shadow: 0 16px 48px rgba(54, 104, 207, 0.6), 0 0 80px rgba(54, 104, 207, 0.35);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  filter: brightness(1.15);
}

#invite-btn:active,
#invite-btn.invite-btn-clicked {
  animation: none;
  transform: translateY(-2px) scale(0.92);
  box-shadow: 0 2px 12px rgba(54, 104, 207, 0.5);
  transition-duration: 0.08s;
}

/* ===== Logo (dans le hero) ===== */
.logo-section {
  position: relative;
  text-align: center;
  z-index: 1;
  margin-bottom: 1.25rem;
}
.logo-container {
  position: relative;
  display: inline-block;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(54, 104, 207, 0.4);
  box-shadow: 0 0 24px var(--accent-glow);
}
.logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: drop-shadow(0 0 20px var(--accent-glow));
  transition: transform var(--transition);
  animation: logoFloat 4s ease-in-out infinite;
}
.logo-container:hover .logo-img {
  animation: none;
  transform: scale(1.08);
}
@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.logo-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(30px);
  opacity: 0.5;
  pointer-events: none;
  border-radius: 50%;
}
.logo-fallback {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.8;
  margin-top: 0.5rem;
}
.logo-section.loaded .logo-fallback { display: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 8rem 2rem 4rem;
  z-index: 1;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.6;
  pointer-events: none;
}

.hero-content {
  flex: 1;
  min-width: 320px;
  max-width: 560px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  animation: fadeInUp 0.8s ease-out;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}
.hero-title .accent {
  color: var(--accent-bright);
  text-shadow: 0 0 60px var(--accent-glow);
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.15rem;
  margin-bottom: 2rem;
  max-width: 480px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}
.hero-desc strong { color: var(--text); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: fadeIn 1s ease-out 1s both;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Terminal visual ===== */
.hero-visual {
  flex: 1;
  min-width: 320px;
  max-width: 480px;
  animation: fadeInUp 0.8s ease-out 0.25s both;
}

.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
}

.terminal-bar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}
.terminal-bar span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}
.terminal-bar span:first-child { background: #ff5f57; }
.terminal-bar span:nth-child(2) { background: #febc2e; }
.terminal-bar span:nth-child(3) { background: #28c840; }

.terminal-body {
  padding: 1.5rem;
  font-family: 'Monaco', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
}
.terminal-body code {
  display: block;
  color: var(--text-muted);
}
.terminal-body .prompt { color: var(--accent-bright); }
.terminal-body .out { color: var(--text); opacity: 0.9; margin-bottom: 0.5rem; }
.terminal-body .cursor {
  color: var(--accent-bright);
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

/* ===== Sections ===== */
.section {
  position: relative;
  padding: 6rem 2rem;
  z-index: 1;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.section-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}
.section-intro {
  text-align: center;
  color: var(--text-muted);
  max-width: 640px;
  margin: -1.5rem auto 2.5rem;
  line-height: 1.6;
}

/* ===== Feature cards ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 220px;
  display: flex;
  flex-direction: column;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover {
  border-color: rgba(54, 104, 207, 0.5);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.feature-card:not(.magnetic-card):hover {
  transform: translateY(-6px);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  filter: grayscale(0.2);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}

/* Animation d'entrée au scroll */
.feature-card {
  opacity: 0;
  transform: translateY(56px) scale(0.94);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.feature-card.reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.feature-card.reveal-done {
  transform: none;
}
.feature-card:nth-child(1) { transition-delay: 0.02s; }
.feature-card:nth-child(2) { transition-delay: 0.08s; }
.feature-card:nth-child(3) { transition-delay: 0.14s; }
.feature-card:nth-child(4) { transition-delay: 0.2s; }
.feature-card:nth-child(5) { transition-delay: 0.26s; }
.feature-card:nth-child(6) { transition-delay: 0.32s; }
.feature-card:nth-child(7) { transition-delay: 0.38s; }
.feature-card:nth-child(8) { transition-delay: 0.44s; }
.feature-card:nth-child(9) { transition-delay: 0.5s; }

/* Magnetic / tilt cards: JS sets transform */
.magnetic-card {
  will-change: transform;
  transform-style: preserve-3d;
}
.magnetic-card .feature-icon,
.magnetic-card h3,
.magnetic-card p,
.roleplay-card-inner,
.ia-icon,
.ia-card h3,
.ia-card p {
  transform: translateZ(20px);
}

/* ===== RolePlay section ===== */
.roleplay {
  position: relative;
  overflow: hidden;
  background-color: #0a0b0f;
}

/* Image de fond : placez roleplay-bg.jpg (ou gta5.jpg) dans website/ puis changez l'URL si besoin */
.roleplay-bg {
  position: absolute;
  inset: 0;
  background-image: url('gta5.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.roleplay-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 11, 15, 0.88) 0%, rgba(10, 11, 15, 0.92) 50%, rgba(10, 11, 15, 0.88) 100%);
  pointer-events: none;
}
.roleplay-inner {
  position: relative;
  z-index: 1;
}
.roleplay .section-title,
.roleplay .section-intro,
.roleplay .roleplay-cta {
  position: relative;
}
.roleplay-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: stretch;
}
@media (max-width: 900px) {
  .roleplay-grid { grid-template-columns: 1fr; }
}
.roleplay-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
  min-height: 260px;
  display: flex;
}
.roleplay-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #5a8ae8);
  opacity: 0.8;
}
.roleplay-card:hover {
  border-color: rgba(54, 104, 207, 0.6);
  box-shadow: 0 20px 50px rgba(54, 104, 207, 0.15);
}
.roleplay-card-inner {
  padding: 2rem;
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.roleplay-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 1rem;
}
.roleplay-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text);
}
.roleplay-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}
.roleplay-card {
  opacity: 0;
  transform: translateY(48px) scale(0.96);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              border-color var(--transition),
              box-shadow var(--transition);
}
.roleplay-card.reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.roleplay-card.reveal-done {
  transform: none;
}
.roleplay-card:nth-child(1) { transition-delay: 0.05s; }
.roleplay-card:nth-child(2) { transition-delay: 0.2s; }
.roleplay-card:nth-child(3) { transition-delay: 0.35s; }
.roleplay-cta {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.roleplay-cta code {
  background: rgba(54, 104, 207, 0.2);
  color: var(--accent-bright);
  padding: 2px 8px;
  border-radius: 6px;
}

/* ===== Moderation section ===== */
.moderation { background: rgba(54, 104, 207, 0.03); }

.mod-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  align-items: stretch;
}
@media (max-width: 1000px) {
  .mod-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .mod-grid { grid-template-columns: 1fr; }
}

.mod-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), background var(--transition);
  min-height: 100px;
}
.mod-item:hover {
  border-color: var(--accent);
  background: rgba(54, 104, 207, 0.06);
}
.mod-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent-bright);
}
.mod-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.mod-item {
  opacity: 0;
  transform: translateY(36px) scale(0.97);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              border-color var(--transition),
              background var(--transition);
}
.mod-item.reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.mod-item.reveal-done {
  transform: none;
}
.mod-item:nth-child(1) { transition-delay: 0.02s; }
.mod-item:nth-child(2) { transition-delay: 0.1s; }
.mod-item:nth-child(3) { transition-delay: 0.18s; }
.mod-item:nth-child(4) { transition-delay: 0.26s; }
.mod-item:nth-child(5) { transition-delay: 0.34s; }

/* ===== IA section ===== */
.ia-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.ia-card {
  background: linear-gradient(145deg, var(--bg-card), rgba(54, 104, 207, 0.06));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
  min-height: 200px;
  display: flex;
  flex-direction: column;
}
.ia-card:not(.magnetic-card):hover {
  transform: translateY(-4px) scale(1.02);
}
.ia-card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 48px rgba(54, 104, 207, 0.15);
}

.ia-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.ia-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text);
}
.ia-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.ia-card {
  opacity: 0;
  transform: translateY(44px) scale(0.95);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              border-color var(--transition),
              box-shadow var(--transition);
}
.ia-card.reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.ia-card.reveal-done {
  transform: none;
}
.ia-card:nth-child(1) { transition-delay: 0.03s; }
.ia-card:nth-child(2) { transition-delay: 0.1s; }
.ia-card:nth-child(3) { transition-delay: 0.17s; }
.ia-card:nth-child(4) { transition-delay: 0.24s; }
.ia-card:nth-child(5) { transition-delay: 0.31s; }
.ia-card:nth-child(6) { transition-delay: 0.38s; }

/* ===== CTA ===== */
.cta-box {
  position: relative;
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(60px);
  opacity: 0.5;
}

.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 1rem;
  position: relative;
}
.cta-box p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  position: relative;
}
.cta-box code {
  background: rgba(54, 104, 207, 0.2);
  color: var(--accent-bright);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
}
.cta-note {
  margin-top: 1.5rem !important;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== Footer ===== */
.footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
  z-index: 1;
  position: relative;
}
.footer code {
  color: var(--accent-bright);
  background: rgba(54, 104, 207, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10, 11, 15, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-toggle { display: flex; }
  .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  .nav-toggle span { transition: transform var(--transition), opacity var(--transition); }
  .hero { flex-direction: column; padding-top: 6rem; }
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
  .section { padding: 4rem 1rem; }
  .features-grid { grid-template-columns: 1fr; }
  .ia-grid { grid-template-columns: 1fr; }
}