:root {
  --color-abyss: #050507;
  --color-surface: rgba(14, 14, 19, 0.75);
  --color-surface-hover: rgba(22, 22, 30, 0.9);
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-hover: rgba(255, 255, 255, 0.18);
  --color-text: #f4f4f6;
  --color-text-muted: #858598;
  --color-text-dim: #545464;
  --color-accent: #8b5cf6;
  --color-accent-hover: #7c3aed;
  --color-accent-glow: rgba(139, 92, 246, 0.22);
  --color-cyan: #06b6d4;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-full: 9999px;

  --ease-cinematic: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--color-abyss);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.viewport-stage {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  position: relative;
  background-color: var(--color-abyss);
}

.grain-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 2;
  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='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");
}

#ambient-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}

.torch-spotlight {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(
    640px circle at var(--mouse-x, 50%) var(--mouse-y, 45%),
    rgba(139, 92, 246, 0.08),
    rgba(6, 182, 212, 0.025) 35%,
    transparent 70%
  );
  transition: opacity 300ms ease;
}

.canvas-container {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: clamp(20px, 3.5vh, 40px) clamp(24px, 4vw, 56px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* Header */
.hud-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
}

.hud-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-photo {
  width: 40px;
  height: 40px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  object-fit: cover;
  display: block;
  background: rgba(14, 14, 19, 0.8);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  transition: border-color 200ms ease, transform 200ms ease;
}

.brand-photo:hover {
  border-color: var(--color-border-hover);
  transform: scale(1.04);
}

.brand-meta {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-text);
}

/* Monolith Centerpiece */
.monolith-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  gap: clamp(14px, 2.4vh, 28px);
  min-height: 0;
}

.monolith-headline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.22em;
  font-size: clamp(2.8rem, min(8vw, 11vh), 6.2rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.04em;
  color: var(--color-text);
  text-align: center;
}

.headline-lead {
  display: inline-block;
}

.slot-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  vertical-align: baseline;
  overflow: hidden;
  height: 1.2em;
  line-height: 1.2em;
  cursor: pointer;
  border-radius: 4px;
  text-align: left;
  user-select: none;
}

.slot-sizer {
  visibility: hidden;
  pointer-events: none;
  user-select: none;
  height: 1.2em;
  line-height: 1.2em;
  display: inline-block;
  white-space: nowrap;
  padding: 0 4px;
}

.slot-reel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 300%;
  display: flex;
  flex-direction: column;
  will-change: transform;
  transform: translate3d(0, -66.666%, 0);
  text-align: left;
}

.slot-reel.spinning {
  animation: slotMachineSpin 1.55s cubic-bezier(0.16, 0.85, 0.25, 1) forwards;
}

.slot-item {
  width: 100%;
  height: 33.333%;
  flex: 0 0 33.333%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  line-height: 1.2em;
  white-space: nowrap;
  padding: 0 4px;
}

@keyframes slotMachineSpin {
  0% {
    transform: translate3d(0, 0%, 0);
    filter: blur(0px);
  }
  22% {
    transform: translate3d(0, 0%, 0);
    filter: blur(0px);
  }
  45% {
    transform: translate3d(0, -33.333%, 0);
    filter: blur(1.5px);
  }
  65% {
    transform: translate3d(0, -33.333%, 0);
    filter: blur(0px);
  }
  88% {
    transform: translate3d(0, -68%, 0);
    filter: blur(1px);
  }
  94% {
    transform: translate3d(0, -66%, 0);
    filter: blur(0px);
  }
  100% {
    transform: translate3d(0, -66.666%, 0);
    filter: blur(0px);
  }
}

.serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  padding: 0 4px;
  background: linear-gradient(135deg, #ffffff 0%, #ddd6fe 50%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Triad Bar */
.triad-bar {
  display: inline-flex;
  align-items: center;
  gap: clamp(8px, 1.4vw, 16px);
  padding: 8px clamp(16px, 2.2vw, 26px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  backdrop-filter: blur(16px);
}

.triad-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.triad-index {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
}

.triad-name {
  font-size: clamp(0.78rem, 0.95vw, 0.88rem);
  font-weight: 500;
  color: var(--color-text);
}

.triad-sep {
  color: var(--color-text-dim);
  font-size: 0.65rem;
}

/* Dialogue Portals */
.dialogue-portals {
  display: flex;
  align-items: center;
  gap: 12px;
}

.portal-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-full);
  font-size: clamp(0.84rem, 0.95vw, 0.92rem);
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: all 200ms var(--ease-cinematic);
}

.portal-primary {
  background: rgba(139, 92, 246, 0.16);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #ede9fe;
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.15);
}

.portal-primary:hover {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
  box-shadow: 0 0 32px var(--color-accent-glow);
  transform: translateY(-1px);
}

.portal-secondary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.portal-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.portal-icon {
  width: 15px;
  height: 15px;
  stroke: currentColor;
}

.whatsapp-icon {
  stroke: var(--color-cyan);
}

.dispatch-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 0.8vw, 0.74rem);
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
}

.dispatch-pulse {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.7;
}

/* Footer */
.hud-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding-top: 12px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.social-link:hover {
  color: var(--color-text);
}

.social-sep {
  color: var(--color-text-dim);
  font-size: 0.6rem;
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-dim);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  background: rgba(18, 18, 24, 0.95);
  border: 1px solid var(--color-border-hover);
  color: var(--color-text);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  animation: toastFade 200ms var(--ease-cinematic);
}

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

/* Viewport Adaptations */

/* Height-Constrained Laptops & Desktops */
@media (min-width: 601px) and (max-height: 720px) {
  .canvas-container {
    padding: 16px 32px;
  }
  .monolith-center {
    gap: 16px;
  }
  .monolith-headline {
    font-size: clamp(2.4rem, 6.5vh, 4.2rem);
  }
  .triad-bar {
    padding: 6px 18px;
  }
  .portal-btn {
    padding: 9px 20px;
  }
  .dispatch-note {
    font-size: 0.68rem;
  }
}

@media (max-height: 560px) {
  .dispatch-note {
    display: none;
  }
}

/* Tablet Screens */
@media (max-width: 820px) {
  .canvas-container {
    padding: clamp(20px, 3vh, 32px) clamp(20px, 3vw, 36px);
  }
  .triad-bar {
    flex-wrap: wrap;
    justify-content: center;
    border-radius: var(--radius-md);
  }
}

/* Mobile Screens */
@media (max-width: 600px) {
  body.viewport-stage {
    overflow-y: auto;
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
  }

  .canvas-container {
    min-height: 100vh;
    min-height: 100dvh;
    padding: max(20px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
    gap: 32px;
  }

  .monolith-headline {
    font-size: clamp(2.2rem, 11vw, 3.4rem);
    gap: 0.16em;
  }

  .slot-wrapper {
    line-height: 1.15;
  }

  .triad-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
  }

  .triad-sep {
    display: none;
  }

  .dialogue-portals {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }

  .portal-btn {
    width: 100%;
    min-height: 48px;
  }

  .hud-footer {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  #ambient-canvas, .grain-overlay, .torch-spotlight {
    display: none !important;
  }
  .slot-reel {
    transform: translate3d(0, -66.666%, 0) !important;
    animation: none !important;
  }
}