/* ═══════════════════════════════════════════════
   VYRDEN — THE AI ROOM — Landing Page
   ═══════════════════════════════════════════════ */

/* ═══ ATMOSPHERE: Noise grain overlay ═══ */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: 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='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px;
}

/* ═══ ATMOSPHERE: Horizontal scan line ═══ */
body::before {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  height: 1px;
  z-index: 9998;
  pointer-events: none;
  background: linear-gradient(90deg,
    transparent 0%,
    oklch(55% 0.2 280 / 0.15) 20%,
    oklch(55% 0.2 280 / 0.4) 50%,
    oklch(55% 0.2 280 / 0.15) 80%,
    transparent 100%
  );
  box-shadow: 0 0 20px oklch(55% 0.2 280 / 0.1);
  animation: scan 8s linear infinite;
}
@keyframes scan {
  0% { top: -2px; }
  100% { top: 100vh; }
}

/* ═══ NAV ═══ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--sp-md) 0;
  transition: background var(--dur-normal) var(--ease-out),
              backdrop-filter var(--dur-normal) var(--ease-out);
}
.nav--scrolled {
  background: oklch(6% 0.01 270 / 0.85);
  backdrop-filter: blur(12px) saturate(1.5);
  border-bottom: 1px solid oklch(100% 0 0 / 0.06);
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  color: var(--c-text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.nav__links {
  display: flex;
  gap: var(--sp-lg);
  margin-left: auto;
}
.nav__links a {
  color: var(--c-text-dim);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--dur-fast);
}
.nav__links a:hover { color: var(--c-text); }

/* Nav status ticker */
.nav__ticker {
  font-family: var(--ff-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
  transition: opacity 0.3s;
  white-space: nowrap;
}

/* ═══ HERO ═══ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-2xl) var(--sp-lg);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(oklch(100% 0 0 / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, oklch(100% 0 0 / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 100%);
}
.hero__glow {
  position: absolute;
  width: 800px;
  height: 600px;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, oklch(55% 0.2 280 / 0.12) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}
.hero__badge {
  display: inline-block;
  padding: var(--sp-xs) var(--sp-md);
  border: 1px solid oklch(55% 0.2 280 / 0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-lg);
  animation: badge-pulse 3s ease-in-out infinite;
}
.hero__title {
  font-size: clamp(2.8rem, 1rem + 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--c-text);
  margin-bottom: var(--sp-lg);
}
.hero__accent {
  background: linear-gradient(135deg, var(--c-accent), oklch(65% 0.22 310));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__sub {
  font-size: clamp(1rem, 0.85rem + 0.5vw, 1.25rem);
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--sp-xl);
}
.hero__actions {
  display: flex;
  gap: var(--sp-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-2xl);
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-lg);
  padding-top: var(--sp-xl);
  border-top: 1px solid oklch(100% 0 0 / 0.06);
}
.stat { text-align: center; }
.stat__num {
  display: block;
  font-size: clamp(1.8rem, 1.2rem + 2vw, 2.8rem);
  font-weight: 800;
  color: var(--c-text);
  font-family: var(--ff-mono);
  letter-spacing: -0.02em;
}
.stat__unit { font-size: 0.6em; opacity: 0.7; }
.stat__label {
  display: block;
  font-size: 0.75rem;
  color: var(--c-text-dim);
  margin-top: var(--sp-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ═══ SECTIONS ═══ */
.section {
  padding: var(--sp-section) 0;
}
.section--dark {
  background: oklch(5% 0.01 270);
}
.section--cta {
  padding: var(--sp-2xl) 0;
  text-align: center;
}
.section__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
}
.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--sp-2xl);
}
.section__tag {
  display: inline-block;
  padding: var(--sp-xs) var(--sp-md);
  border: 1px solid oklch(55% 0.2 280 / 0.25);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-md);
}
.section__title {
  font-size: clamp(1.8rem, 1.2rem + 2vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--c-text);
  margin-bottom: var(--sp-md);
}
.section__desc {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  line-height: 1.7;
}

/* ═══ FLOW GRID (Concept Section) ═══ */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-lg);
}
.flow-card {
  background: oklch(8% 0.01 270);
  border: 1px solid oklch(100% 0 0 / 0.06);
  border-radius: 16px;
  padding: var(--sp-xl);
  display: flex;
  gap: var(--sp-lg);
  align-items: flex-start;
  transition: border-color var(--dur-normal) var(--ease-out),
              transform var(--dur-normal) var(--ease-out);
}
.flow-card:hover {
  border-color: oklch(55% 0.2 280 / 0.3);
  transform: translateY(-2px);
}
.flow-card__num {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-accent);
  min-width: 2rem;
  padding-top: 2px;
}
.flow-card__content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: var(--sp-xs);
}
.flow-card__content p {
  font-size: 0.875rem;
  color: var(--c-text-dim);
  line-height: 1.6;
}

/* ═══ AGENT ROSTER (The Seven) ═══ */
.agent-roster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-lg);
}
.agent-card {
  position: relative;
  background: oklch(8% 0.015 270);
  border: 1px solid oklch(100% 0 0 / 0.06);
  border-radius: 16px;
  padding: var(--sp-xl);
  transition: border-color var(--dur-normal) var(--ease-out),
              transform var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
}
.agent-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px oklch(0% 0 0 / 0.3);
}
/* Color accents per agent type — with glow on hover */
.agent-card--sec { border-left: 3px solid oklch(60% 0.25 25); }
.agent-card--sec:hover { border-color: oklch(60% 0.25 25); box-shadow: 0 12px 40px oklch(60% 0.25 25 / 0.15), inset 0 0 30px oklch(60% 0.25 25 / 0.04); }
.agent-card--fin { border-left: 3px solid oklch(75% 0.15 85); }
.agent-card--fin:hover { border-color: oklch(75% 0.15 85); box-shadow: 0 12px 40px oklch(75% 0.15 85 / 0.15), inset 0 0 30px oklch(75% 0.15 85 / 0.04); }
.agent-card--ceo { border-left: 3px solid oklch(55% 0.2 280); }
.agent-card--ceo:hover { border-color: oklch(55% 0.2 280); box-shadow: 0 12px 40px oklch(55% 0.2 280 / 0.15), inset 0 0 30px oklch(55% 0.2 280 / 0.04); }
.agent-card--eng { border-left: 3px solid oklch(60% 0.2 240); }
.agent-card--eng:hover { border-color: oklch(60% 0.2 240); box-shadow: 0 12px 40px oklch(60% 0.2 240 / 0.15), inset 0 0 30px oklch(60% 0.2 240 / 0.04); }
.agent-card--ops { border-left: 3px solid oklch(70% 0.15 200); }
.agent-card--ops:hover { border-color: oklch(70% 0.15 200); box-shadow: 0 12px 40px oklch(70% 0.15 200 / 0.15), inset 0 0 30px oklch(70% 0.15 200 / 0.04); }
.agent-card--biz { border-left: 3px solid oklch(70% 0.2 55); }
.agent-card--biz:hover { border-color: oklch(70% 0.2 55); box-shadow: 0 12px 40px oklch(70% 0.2 55 / 0.15), inset 0 0 30px oklch(70% 0.2 55 / 0.04); }
.agent-card--dir { border-left: 3px solid oklch(90% 0 0); }
.agent-card--dir:hover { border-color: oklch(90% 0 0); box-shadow: 0 12px 40px oklch(90% 0 0 / 0.1), inset 0 0 30px oklch(90% 0 0 / 0.03); }

.agent-card__status {
  position: absolute;
  top: var(--sp-lg);
  right: var(--sp-lg);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: oklch(50% 0 0);
}
.agent-card__status--live {
  background: oklch(72% 0.22 145);
  box-shadow: 0 0 8px oklch(72% 0.22 145 / 0.5);
  animation: pulse-live 2.5s ease-in-out infinite;
}
@keyframes pulse-live {
  0%, 100% { box-shadow: 0 0 4px oklch(72% 0.22 145 / 0.3); }
  50% { box-shadow: 0 0 12px oklch(72% 0.22 145 / 0.6); }
}
.agent-card__id {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--sp-xs);
}
.agent-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: var(--sp-sm);
  letter-spacing: -0.01em;
}
.agent-card p {
  font-size: 0.875rem;
  color: var(--c-text-dim);
  line-height: 1.65;
  margin-bottom: var(--sp-md);
}
.agent-card__meta {
  display: flex;
  gap: var(--sp-xs);
  flex-wrap: wrap;
  margin-bottom: var(--sp-sm);
}
.agent-card__domain {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  color: oklch(60% 0 0);
  padding-top: var(--sp-sm);
  border-top: 1px solid oklch(100% 0 0 / 0.05);
}

/* ═══ TAGS ═══ */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid oklch(100% 0 0 / 0.1);
  color: var(--c-text-dim);
}
.tag--green { color: oklch(72% 0.22 145); border-color: oklch(72% 0.22 145 / 0.3); }
.tag--red { color: oklch(65% 0.25 25); border-color: oklch(65% 0.25 25 / 0.3); }
.tag--gold { color: oklch(78% 0.15 85); border-color: oklch(78% 0.15 85 / 0.3); }
.tag--purple { color: oklch(60% 0.2 280); border-color: oklch(60% 0.2 280 / 0.3); }
.tag--blue { color: oklch(65% 0.18 240); border-color: oklch(65% 0.18 240 / 0.3); }
.tag--cyan { color: oklch(72% 0.12 200); border-color: oklch(72% 0.12 200 / 0.3); }
.tag--orange { color: oklch(72% 0.18 55); border-color: oklch(72% 0.18 55 / 0.3); }
.tag--white { color: oklch(90% 0 0); border-color: oklch(90% 0 0 / 0.3); }

/* ═══ BOUNDARY VISUAL ═══ */
.boundary-visual {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--sp-xl);
  align-items: stretch;
}
.boundary-side {
  background: oklch(8% 0.01 270);
  border: 1px solid oklch(100% 0 0 / 0.06);
  border-radius: 16px;
  padding: var(--sp-xl);
}
.boundary-side--left { border-top: 3px solid oklch(55% 0.2 280); }
.boundary-side--right { border-top: 3px solid oklch(72% 0.22 145); }
.boundary-side__title {
  font-family: var(--ff-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 2px;
}
.boundary-side__sub {
  font-size: 0.75rem;
  color: var(--c-text-dim);
  display: block;
  margin-bottom: var(--sp-lg);
}
.boundary-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}
.boundary-list__item {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  padding-left: 1.6rem;
  position: relative;
}
.boundary-list__item::before {
  position: absolute;
  left: 0;
  font-weight: 700;
  font-size: 0.85rem;
}
.boundary-list__item--yes::before {
  content: "✓";
  color: oklch(72% 0.22 145);
}
.boundary-list__item--no::before {
  content: "✕";
  color: oklch(60% 0.25 25);
}
.boundary-list__item--no {
  opacity: 0.5;
  text-decoration: line-through;
}
.boundary-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-md);
  padding: var(--sp-lg) 0;
}
.boundary-divider__line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, oklch(55% 0.2 280 / 0.3), oklch(55% 0.2 280), oklch(55% 0.2 280 / 0.3));
}
.boundary-divider__label {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-accent);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--sp-sm) var(--sp-md);
  border: 1px solid oklch(55% 0.2 280 / 0.3);
  border-radius: 8px;
  background: oklch(8% 0.02 270);
}

/* ═══ PROTOCOL GRID ═══ */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-lg);
}
.protocol-card {
  background: oklch(8% 0.015 270);
  border: 1px solid oklch(100% 0 0 / 0.06);
  border-radius: 16px;
  padding: var(--sp-xl);
  transition: border-color var(--dur-normal) var(--ease-out),
              transform var(--dur-normal) var(--ease-out);
}
.protocol-card:hover {
  border-color: oklch(55% 0.2 280 / 0.3);
  transform: translateY(-2px);
}
.protocol-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: oklch(55% 0.2 280 / 0.1);
  color: var(--c-accent);
  margin-bottom: var(--sp-md);
}
.protocol-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: var(--sp-sm);
}
.protocol-card p {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  line-height: 1.65;
}

/* ═══ CTA ═══ */
.cta__title {
  font-size: clamp(1.8rem, 1rem + 3vw, 3rem);
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: var(--sp-md);
}
.cta__desc {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  margin-bottom: var(--sp-xl);
}
.cta__actions {
  margin-bottom: var(--sp-lg);
}
.cta__note {
  font-size: 0.75rem;
  font-family: var(--ff-mono);
  color: oklch(50% 0 0);
}

/* ═══ FOOTER ═══ */
.footer {
  border-top: 1px solid oklch(100% 0 0 / 0.06);
  padding: var(--sp-xl) 0;
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-md);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  color: var(--c-text);
  font-weight: 600;
  font-size: 0.9rem;
}
.footer__links {
  display: flex;
  gap: var(--sp-lg);
}
.footer__links a {
  color: var(--c-text-dim);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color var(--dur-fast);
}
.footer__links a:hover { color: var(--c-text); }
.footer__copy {
  font-size: 0.75rem;
  color: oklch(45% 0 0);
}

/* ═══ ANIMATION ═══ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Staggered cascade for cards in grids */
.flow-card:nth-child(2) { transition-delay: 80ms; }
.flow-card:nth-child(3) { transition-delay: 160ms; }
.flow-card:nth-child(4) { transition-delay: 240ms; }
.flow-card:nth-child(5) { transition-delay: 320ms; }
.agent-card:nth-child(2) { transition-delay: 70ms; }
.agent-card:nth-child(3) { transition-delay: 140ms; }
.agent-card:nth-child(4) { transition-delay: 210ms; }
.agent-card:nth-child(5) { transition-delay: 280ms; }
.agent-card:nth-child(6) { transition-delay: 350ms; }
.agent-card:nth-child(7) { transition-delay: 420ms; }
.protocol-card:nth-child(2) { transition-delay: 90ms; }
.protocol-card:nth-child(3) { transition-delay: 180ms; }
.protocol-card:nth-child(4) { transition-delay: 270ms; }

/* Stat counter glow when counted */
.stat__num--done {
  text-shadow: 0 0 20px oklch(55% 0.2 280 / 0.5), 0 0 40px oklch(55% 0.2 280 / 0.2);
  transition: text-shadow 0.6s var(--ease-out);
}

/* Hero badge pulse */
@keyframes badge-pulse {
  0%, 100% { border-color: oklch(55% 0.2 280 / 0.3); }
  50% { border-color: oklch(55% 0.2 280 / 0.6); box-shadow: 0 0 15px oklch(55% 0.2 280 / 0.1); }
}

/* CTA pulsing ring */
.section--cta .btn--accent {
  position: relative;
}
.section--cta .btn--accent::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: inherit;
  border: 1px solid oklch(55% 0.2 280 / 0.4);
  animation: cta-ring 2.5s ease-out infinite;
  pointer-events: none;
}
@keyframes cta-ring {
  0% { inset: -4px; opacity: 1; }
  100% { inset: -16px; opacity: 0; }
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__ticker { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: 1fr; }
  .agent-roster { grid-template-columns: 1fr; }
  .boundary-visual {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }
  .boundary-divider {
    flex-direction: row;
    padding: 0 var(--sp-lg);
  }
  .boundary-divider__line {
    width: auto;
    height: 2px;
  }
  .protocol-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero__stats { grid-template-columns: 1fr 1fr; gap: var(--sp-md); }
}

/* ═══ REDUCED MOTION ═══ */
@media (prefers-reduced-motion: reduce) {
  body::before { animation: none; display: none; }
  .hero__badge { animation: none; }
  .section--cta .btn--accent::after { animation: none; display: none; }
  .agent-card__status--live { animation: none; }
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}