frontend/src/app/globals.css

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Barlow:wght@300;400;500;600&display=swap');
@import url('https://db.onlinewebfonts.com/c/e55e9079ee863276569c8a68d776ef04?family=Futura+Md+BT+Medium');

@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  body, html {
    font-family: 'Futura Md BT Medium', system-ui, -apple-system, sans-serif !important;
  }
}

@layer base {
  :root {
    color-scheme: light;
    --background: #fafafc;
    --foreground: #0f172a;
    --panel: #f1f5f9;
    --card: #ffffff;
    --card-foreground: #0f172a;
    --popover: #ffffff;
    --popover-foreground: #0f172a;
    --primary: #2563eb;
    --primary-foreground: #ffffff;
    --secondary: #4f46e5;
    --secondary-foreground: #ffffff;
    --muted: #f8fafc;
    --muted-foreground: #64748b;
    --accent: #2563eb;
    --accent-foreground: #ffffff;
    --glow: #3b82f6;
    --destructive: #ef4444;
    --border: rgba(15, 23, 42, 0.08);
    --input: rgba(15, 23, 42, 0.06);
    --ring: #2563eb;
    --chart-1: #2563eb;
    --chart-2: #3b82f6;
    --chart-3: #60a5fa;
    --chart-4: #4f46e5;
    --chart-5: #6366f1;
    --radius: 0.875rem;

    /* Legacy nexus colors for compatibility */
    --nexus-bg: 250 250 252;
    --nexus-panel: 241 245 249;
    --nexus-card: 255 255 255;
    --nexus-card-opacity: 0.75;
    --nexus-fg: 15 23 42;
    --nexus-muted: 100 116 139;
    --nexus-accent: 37 99 235;
    --nexus-secondary: 79 70 229;
    --nexus-border: 226 232 240;
    --tilt-glow: rgba(37, 99, 235, 0.06);
    --tilt-shadow: rgba(37, 99, 235, 0.08);
    --cursor-glow: radial-gradient(circle, rgba(37,99,235,0.06), rgba(96,165,250,0.01) 45%, transparent 70%);
  }

  .dark {
    color-scheme: dark;
    --background: #000000;
    --foreground: #ffffff;
    --panel: #071326;
    --card: #071326;
    --card-foreground: #ffffff;
    --popover: #071326;
    --popover-foreground: #ffffff;
    --primary: #2563eb;
    --primary-foreground: #ffffff;
    --secondary: #8b5cf6;
    --secondary-foreground: #ffffff;
    --muted: #0b1a30;
    --muted-foreground: #94a3b8;
    --accent: #60a5fa;
    --accent-foreground: #030712;
    --glow: #22d3ee;
    --destructive: #f43f5e;
    --border: rgba(255, 255, 255, 0.08);
    --input: rgba(255, 255, 255, 0.12);
    --ring: #2563eb;
    --chart-1: #2563eb;
    --chart-2: #60a5fa;
    --chart-3: #22d3ee;
    --chart-4: #8b5cf6;
    --chart-5: #38bdf8;
    --radius: 0.875rem;

    /* Legacy nexus colors for compatibility */
    --nexus-bg: 3 7 18;
    --nexus-panel: 7 19 38;
    --nexus-card: 7 19 38;
    --nexus-card-opacity: 1;
    --nexus-fg: 255 255 255;
    --nexus-muted: 148 163 184;
    --nexus-accent: 96 165 250;
    --nexus-secondary: 139 92 246;
    --nexus-border: 30 41 59;
    --tilt-glow: rgba(34, 211, 238, 0.15);
    --tilt-shadow: rgba(34, 211, 238, 0.25);
    --cursor-glow: radial-gradient(circle, rgba(37,99,235,0.15), rgba(34,211,238,0.04) 45%, transparent 70%);
  }
}

@layer base {
  * {
    @apply border-border;
  }

  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: auto;
    /* TRANSPARENT — BackgroundVideo sits behind this at z-[-30] */
    background: transparent;
  }

  body {
    /* Fallback dark colour visible before video loads */
    background-color: #000000;
    background-image: none;
    color: white;
    font-feature-settings: 'ss01', 'cv11', 'kern';
  }

  html.theme-transition,
  html.theme-transition *,
  html.theme-transition *::before,
  html.theme-transition *::after {
    transition:
      background-color 0.35s ease,
      border-color 0.35s ease,
      color 0.25s ease,
      fill 0.25s ease,
      stroke 0.25s ease !important;
  }
}

@layer components {
  .glass {
    backdrop-filter: blur(28px);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.12);
  }

  .dark .glass {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  }

  .glass-panel {
    @apply rounded-2xl;
    backdrop-filter: blur(28px);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.12);
  }

  .dark .glass-panel {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  }

  .surface-elevated {
    @apply glass-panel rounded-3xl;
  }

  .liquid-glass-strong {
    background: rgba(255, 255, 255, 0.01);
    background-blend-mode: luminosity;
    backdrop-filter: blur(50px);
    -webkit-backdrop-filter: blur(50px);
    border: none;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.05),
      inset 0 1px 1px rgba(255, 255, 255, 0.15);
    position: relative;
    overflow: hidden;
  }

  .liquid-glass-strong::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.4px;
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.5) 0%,
      rgba(255, 255, 255, 0.2) 20%,
      rgba(255, 255, 255, 0) 40%,
      rgba(255, 255, 255, 0) 60%,
      rgba(255, 255, 255, 0.2) 80%,
      rgba(255, 255, 255, 0.5) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
  }

  .font-heading {
    font-family: 'Instrument Serif', serif;
  }

  .font-body {
    font-family: 'Barlow', sans-serif;
  }

  .gradient-text {
    @apply bg-gradient-to-r from-nexus-accent to-nexus-secondary bg-clip-text text-transparent;
  }

  .gradient-text-cool {
    @apply bg-gradient-to-r from-nexus-accent via-blue-500 to-nexus-secondary bg-clip-text text-transparent;
  }

  .grid-bg {
    background-image:
      linear-gradient(to right, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  }

  .noise-overlay {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
    mix-blend-mode: overlay;
  }

  .dark .noise-overlay {
    opacity: 0.05;
  }

  .text-balance {
    text-wrap: balance;
  }

  .text-pretty {
    text-wrap: pretty;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(37, 99, 235, 0.28);
  border-radius: 9999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.dark ::-webkit-scrollbar-thumb {
  background: rgba(96, 165, 250, 0.35);
  background-clip: padding-box;
}

::selection {
  background: rgba(37, 99, 235, 0.18);
  color: inherit;
}

.dark ::selection {
  background: rgba(96, 165, 250, 0.28);
}

:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.55);
  outline-offset: 2px;
  border-radius: 0.4rem;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}

.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

@keyframes dash-shift {
  to {
    background-position: 200% 0, -200% 0, 0 0, 0 0;
  }
}

.dash-animated {
  background-image:
    linear-gradient(90deg, rgba(37, 99, 235, 0.6) 50%, transparent 50%),
    linear-gradient(90deg, rgba(124, 58, 237, 0.6) 50%, transparent 50%),
    linear-gradient(0deg, rgba(37, 99, 235, 0.6) 50%, transparent 50%),
    linear-gradient(0deg, rgba(124, 58, 237, 0.6) 50%, transparent 50%);
  background-repeat: repeat-x, repeat-x, repeat-y, repeat-y;
  background-size: 12px 2px, 12px 2px, 2px 12px, 2px 12px;
  background-position: 0 0, 0 100%, 0 0, 100% 0;
  animation: dash-shift 6s linear infinite;
}

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

.count-anim {
  animation: count-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@layer utilities {
  .text-glow {
    text-shadow: 0 0 40px rgba(96, 165, 250, 0.45);
  }
  .glass {
    background: linear-gradient(
      160deg,
      rgba(255, 255, 255, 0.06),
      rgba(255, 255, 255, 0.015)
    );
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  .glass-strong {
    background: linear-gradient(
      160deg,
      rgba(13, 26, 48, 0.85),
      rgba(7, 19, 38, 0.6)
    );
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  .grain {
    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='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  .mask-fade-y {
    -webkit-mask-image: linear-gradient(
      to bottom,
      transparent,
      black 12%,
      black 88%,
      transparent
    );
    mask-image: linear-gradient(
      to bottom,
      transparent,
      black 12%,
      black 88%,
      transparent
    );
  }
  .mask-fade-x {
    -webkit-mask-image: linear-gradient(
      to right,
      transparent,
      black 8%,
      black 92%,
      transparent
    );
    mask-image: linear-gradient(
      to right,
      transparent,
      black 8%,
      black 92%,
      transparent
    );
  }
}

@keyframes aurora-drift {
  0%,
  100% {
    transform: translate3d(-8%, -4%, 0) scale(1.1);
    opacity: 0.55;
  }
  50% {
    transform: translate3d(8%, 6%, 0) scale(1.25);
    opacity: 0.8;
  }
}

@keyframes float-slow {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.85);
    opacity: 0.7;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}