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@import "tailwindcss";

/* ─────────────────────────────────────────────────────────────────────────
   Design tokens. Tailwind v4 @theme registers the variables AND generates
   utilities like `bg-surface-0`, `text-fg-0`. Dark theme is the baseline;
   light theme overrides the same variable names below.
   ───────────────────────────────────────────────────────────────────────── */

@theme {
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --font-ui: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Surface (dark baseline) */
  --color-surface-0: #0b0d12;
  --color-surface-1: #12151c;
  --color-surface-2: #1a1e27;
  --color-surface-3: #242936;
  --color-border: #1f2430;
  --color-border-strong: #2d3342;

  /* Foreground (dark baseline) */
  --color-fg-0: #e4e7ef;
  --color-fg-1: #a8afc0;
  --color-fg-2: #6c7488;
  --color-fg-3: #454c5e;

  /* Text color used on top of a solid accent pill (so contrast stays
     legible regardless of which accent). Dark theme: near-black. */
  --color-on-accent: #0b0d12;

  /* Category accents (dark baseline) */
  --color-cat-conversation: #22d3ee;
  --color-cat-config: #a78bfa;
  --color-cat-lifecycle: #94a3b8;
  --color-cat-subagent: #8b5cf6;
  --color-cat-approval: #fb923c;
  --color-cat-ephemeral: #facc15;
  --color-cat-meta: #6366f1;
  --color-cat-tools: #f59e0b;

  /* Conversation subfamily */
  --color-user: #38bdf8;
  --color-assistant: #22d3ee;
  --color-tool: #f59e0b;
  --color-compaction: #f97316;
  --color-turn: #14b8a6;

  /* Severity */
  --color-sev-info: #60a5fa;
  --color-sev-success: #4ade80;
  --color-sev-warning: #fbbf24;
  --color-sev-error: #f87171;
}

/* ─────────────────────────────────────────────────────────────────────────
   Light-theme overrides. Applied when <html data-theme="light">.
   Accents get darker variants for AA contrast on light backgrounds.
   ───────────────────────────────────────────────────────────────────────── */

:root[data-theme="light"] {
  color-scheme: light;

  --color-surface-0: #fafbfc;
  --color-surface-1: #eef1f6;
  --color-surface-2: #e4e8f0;
  --color-surface-3: #d4d9e4;
  --color-border: #dde1ea;
  --color-border-strong: #bfc6d4;

  --color-fg-0: #0f1219;
  --color-fg-1: #3a4154;
  --color-fg-2: #616878;
  --color-fg-3: #9097a8;

  --color-on-accent: #fafbfc;

  --color-cat-conversation: #0891b2;
  --color-cat-config: #7c3aed;
  --color-cat-lifecycle: #475569;
  --color-cat-subagent: #6d28d9;
  --color-cat-approval: #c2410c;
  --color-cat-ephemeral: #a16207;
  --color-cat-meta: #4338ca;
  --color-cat-tools: #b45309;

  --color-user: #0369a1;
  --color-assistant: #0891b2;
  --color-tool: #b45309;
  --color-compaction: #c2410c;
  --color-turn: #0d9488;

  --color-sev-info: #2563eb;
  --color-sev-success: #15803d;
  --color-sev-warning: #b45309;
  --color-sev-error: #b91c1c;
}

:root[data-theme="dark"] {
  color-scheme: dark;
}

/* ─────────────────────────────────────────────────────────────────────────
   Base
   ───────────────────────────────────────────────────────────────────────── */

html,
body,
#root {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.45;
  background-color: var(--color-surface-0);
  color: var(--color-fg-0);
}

/* Subtle noise grain only on dark β€” adds industrial texture. On light it
   just looks dirty, so omit. */
:root:not([data-theme="light"]) body {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.9  0 0 0 0 0.92  0 0 0 0 0.98  0 0 0 0.035 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-repeat: repeat;
}

/* Force-disable ligatures and contextual alternates in monospace β€” debug
   tool must render characters verbatim. */
.font-mono {
  font-feature-settings: "liga" 0, "calt" 0, "ss01" 0;
  font-variant-ligatures: none;
  font-family: var(--font-mono);
}

.tabular {
  font-variant-numeric: tabular-nums;
}

/* Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-strong) transparent;
}

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

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

*::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 0;
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--color-fg-3);
  background-clip: padding-box;
  border: 2px solid transparent;
}

::selection {
  background-color: color-mix(in oklab, var(--color-cat-conversation) 30%, transparent);
  color: var(--color-fg-0);
}

*:focus-visible {
  outline: 1px solid var(--color-cat-conversation);
  outline-offset: 1px;
}

/* Button + anchor element resets β€” kept inside @layer base so Tailwind
   utilities (px-*, py-*, etc.) in the utilities layer win over them.
   Unlayered rules would otherwise beat layered utilities in the cascade. */
@layer base {
  button {
    font-family: inherit;
    font-size: inherit;
    background: none;
    border: none;
    padding: 0;
    color: inherit;
    cursor: pointer;
  }

  a {
    color: inherit;
    text-decoration: none;
  }
}

.rule {
  border-top: 1px solid var(--color-border);
}

.accent-bar {
  width: 3px;
  flex-shrink: 0;
  align-self: stretch;
}

.ephemeral-border {
  border: 1px dashed var(--color-cat-ephemeral);
  border-radius: 2px;
}

.ephemeral-border-info {
  border-color: var(--color-sev-info);
}
.ephemeral-border-success {
  border-color: var(--color-sev-success);
}
.ephemeral-border-warning {
  border-color: var(--color-sev-warning);
}
.ephemeral-border-error {
  border-color: var(--color-sev-error);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-radius: 2px;
  white-space: nowrap;
  line-height: 1.4;
}