web/src/styles/index.css

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

@layer base {
  :root {
    /* parchment / warm light (unused but kept for future toggle) */
    --background: 36 30% 96%;
    --foreground: 25 30% 12%;
    --muted: 36 22% 92%;
    --muted-foreground: 25 15% 35%;
    --border: 32 18% 82%;
    --ring: 28 78% 52%;
    --paper: 36 36% 98%;
    --ink: 25 32% 10%;
    --primary: 28 78% 52%;
    --primary-foreground: 36 36% 98%;
    --accent: 18 58% 38%;
    --accent-foreground: 36 36% 98%;
    --ember: 28 92% 60%;
    --radius: 0.4rem;
  }
  .dark {
    /* warm near-black, parchment text, single ember accent */
    --background: 28 14% 7%;
    --foreground: 38 28% 92%;
    --muted: 28 10% 12%;
    --muted-foreground: 35 14% 64%;
    --border: 28 10% 18%;
    --ring: 28 92% 60%;
    --paper: 28 16% 9%;
    --ink: 38 28% 92%;
    --primary: 28 92% 60%;
    --primary-foreground: 28 14% 7%;
    --accent: 18 58% 48%;
    --accent-foreground: 38 28% 92%;
    --ember: 28 92% 60%;
  }
  html, body {
    @apply bg-background text-foreground antialiased;
    font-family: theme("fontFamily.sans");
    font-feature-settings: "ss01", "cv11";
  }
  body {
    background-image:
      radial-gradient(ellipse 90% 60% at 100% 0%, hsl(28 70% 30% / 0.10), transparent 60%),
      radial-gradient(ellipse 80% 50% at 0% 100%, hsl(18 50% 24% / 0.10), transparent 60%);
    background-attachment: fixed;
  }
  /* subtle grain via CSS */
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.06;
    mix-blend-mode: overlay;
    background-image:
      url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/></svg>");
  }
  ::selection {
    background: hsl(var(--ember) / 0.35);
    color: hsl(var(--foreground));
  }
}

@layer components {
  .label-mono {
    @apply font-mono text-[10.5px] tracking-widest2 uppercase text-muted-foreground;
  }
  .display-serif {
    font-family: theme("fontFamily.display");
    font-optical-sizing: auto;
    font-variation-settings: "opsz" 144;
    letter-spacing: -0.015em;
  }
  .rule-dotted {
    background-image: radial-gradient(circle, hsl(var(--border)) 1px, transparent 1.4px);
    background-size: 6px 1px;
    background-repeat: repeat-x;
    height: 1px;
  }
  .ember-ring:focus-visible {
    outline: none;
    box-shadow: 0 0 0 1px hsl(var(--background)), 0 0 0 3px hsl(var(--ember) / 0.7);
  }
  .btn-primary {
    @apply font-mono uppercase tracking-widest2 text-[12px] py-3 px-4 rounded-sm
      bg-primary text-primary-foreground transition-colors duration-200
      hover:bg-[hsl(var(--ember))] disabled:opacity-40 disabled:cursor-not-allowed;
  }
  .btn-ghost {
    @apply font-mono uppercase tracking-widest2 text-[11px] py-2 px-3 rounded-sm
      border border-border text-muted-foreground transition-colors duration-200
      hover:text-foreground hover:border-foreground/40;
  }
  .field-input {
    @apply w-full rounded-sm border border-border bg-paper/60 px-3 py-2 text-sm
      placeholder:text-muted-foreground focus:border-[hsl(var(--ember))]/60
      focus:outline-none transition-colors;
  }
  .card-paper {
    @apply rounded-sm border border-border bg-paper/40 backdrop-blur-[1px];
  }
  .marker-num {
    @apply font-mono text-[11px] text-[hsl(var(--ember))] tracking-widest2;
  }
}

@layer utilities {
  .relative-z {
    position: relative;
    z-index: 1;
  }
}