/* FORGE — design tokens */
:root {
  /* theme: dark (default) */
  --bg-0: oklch(0.16 0.008 250);
  --bg-1: oklch(0.19 0.008 250);
  --bg-2: oklch(0.22 0.009 250);
  --bg-3: oklch(0.26 0.010 250);
  --bg-inset: oklch(0.13 0.008 250);
  --line: oklch(0.30 0.009 250);
  --line-soft: oklch(0.24 0.008 250);
  --line-strong: oklch(0.38 0.011 250);

  --ink: oklch(0.96 0.004 250);
  --ink-2: oklch(0.82 0.006 250);
  --ink-3: oklch(0.62 0.008 250);
  --ink-4: oklch(0.58 0.008 250);

  --accent: oklch(0.74 0.17 55);       /* hazard orange */
  --accent-2: oklch(0.62 0.19 55);
  --accent-text: oklch(0.74 0.17 55);  /* accent as text/stroke; darkened on light */
  --accent-ink: oklch(0.14 0.02 55);

  --cool: oklch(0.76 0.11 220);        /* data/sim cool */
  --cool-2: oklch(0.58 0.14 220);

  --ok: oklch(0.76 0.14 155);
  --warn: oklch(0.80 0.14 85);
  --err: oklch(0.70 0.19 25);
  --info: oklch(0.75 0.12 250);

  --grid: rgba(255,255,255,0.03);

  --radius-1: 3px;
  --radius-2: 6px;
  --radius-3: 10px;

  --font-ui: "Inter Tight", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-serif: "Instrument Serif", ui-serif, Georgia, serif;

  --density-row: 28px;
  --density-pad: 10px;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg-0: oklch(0.985 0.004 85);
  --bg-1: oklch(0.965 0.005 85);
  --bg-2: oklch(0.945 0.006 85);
  --bg-3: oklch(0.92 0.007 85);
  --bg-inset: oklch(1 0 0);
  --line: oklch(0.84 0.006 85);
  --line-soft: oklch(0.90 0.005 85);
  --line-strong: oklch(0.72 0.008 85);

  --ink: oklch(0.16 0.01 85);
  --ink-2: oklch(0.30 0.01 85);
  --ink-3: oklch(0.46 0.01 85);
  --ink-4: oklch(0.50 0.01 85);

  --accent-text: oklch(0.55 0.17 55);
  --cool: oklch(0.56 0.11 220);
  --cool-2: oklch(0.48 0.14 220);

  --grid: rgba(0,0,0,0.04);

  color-scheme: light;
}

:root[data-density="dense"]  { --density-row: 24px; --density-pad: 6px; }
:root[data-density="medium"] { --density-row: 28px; --density-pad: 10px; }
:root[data-density="roomy"]  { --density-row: 36px; --density-pad: 14px; }

:root[data-accent="orange"] { --accent: oklch(0.74 0.17 55);  --accent-2: oklch(0.62 0.19 55); }
:root[data-accent="blue"]   { --accent: oklch(0.74 0.14 230); --accent-2: oklch(0.60 0.17 230); }
:root[data-accent="green"]  { --accent: oklch(0.76 0.14 150); --accent-2: oklch(0.60 0.16 150); }
:root[data-accent="violet"] { --accent: oklch(0.74 0.16 295); --accent-2: oklch(0.60 0.19 295); }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.4;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--accent-ink); }

/* scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 8px; border: 2px solid transparent; background-clip: padding-box; }
*::-webkit-scrollbar-track { background: transparent; }

/* ------- atoms ------- */
.mono { font-family: var(--font-mono); font-feature-settings: "ss01"; }
.serif { font-family: var(--font-serif); font-weight: 400; letter-spacing: -0.01em; }
.tnum { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-3); }
.dim { color: var(--ink-4); }
.kbd {
  font-family: var(--font-mono); font-size: 10px; padding: 1px 5px;
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 3px;
  color: var(--ink-2); background: var(--bg-2);
}

.hr { height: 1px; background: var(--line-soft); margin: 8px 0; }
.vr { width: 1px; background: var(--line-soft); align-self: stretch; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  height: 18px; padding: 0 7px; border-radius: 999px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.05em;
  border: 1px solid var(--line); color: var(--ink-2); background: var(--bg-2);
  text-transform: uppercase; white-space: nowrap;
}
.pill .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--ink-3); }
.pill.ok     { color: var(--ok);    border-color: color-mix(in oklch, var(--ok) 50%, var(--line)); }
.pill.ok .dot{ background: var(--ok); }
.pill.warn   { color: var(--warn);  border-color: color-mix(in oklch, var(--warn) 50%, var(--line)); }
.pill.warn .dot{ background: var(--warn); }
.pill.err    { color: var(--err);   border-color: color-mix(in oklch, var(--err) 50%, var(--line)); }
.pill.err .dot{ background: var(--err); }
.pill.info   { color: var(--info);  border-color: color-mix(in oklch, var(--info) 50%, var(--line)); }
.pill.info .dot{ background: var(--info); }
.pill.accent { color: var(--accent); border-color: color-mix(in oklch, var(--accent) 50%, var(--line)); }
.pill.accent .dot { background: var(--accent); }
:root[data-theme="light"] .pill.ok     { color: color-mix(in oklch, var(--ok)     50%, var(--ink)); }
:root[data-theme="light"] .pill.warn   { color: color-mix(in oklch, var(--warn)   47%, var(--ink)); }
:root[data-theme="light"] .pill.err    { color: color-mix(in oklch, var(--err)    58%, var(--ink)); }
:root[data-theme="light"] .pill.info   { color: color-mix(in oklch, var(--info)   51%, var(--ink)); }
:root[data-theme="light"] .pill.accent { color: color-mix(in oklch, var(--accent) 52%, var(--ink)); }

.btn {
  height: 26px; padding: 0 10px; border-radius: 5px;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--ink);
  font-family: var(--font-ui); font-size: 12px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: background .12s ease, border-color .12s ease;
}
.btn:hover { background: var(--bg-3); border-color: var(--line-strong); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent-2); font-weight: 600; }
.btn.primary:hover { background: var(--accent-2); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--bg-2); color: var(--ink); }
.btn.sm { height: 22px; padding: 0 8px; font-size: 11px; }
.btn:disabled, .btn.is-disabled {
  opacity: 0.55; cursor: not-allowed; pointer-events: auto;
  background: var(--bg-2); color: var(--ink-4); border-color: var(--line);
}
.btn.primary:disabled, .btn.primary.is-disabled {
  background: color-mix(in oklch, var(--accent) 35%, var(--bg-2)); color: var(--accent-ink);
}
.btn:disabled:hover, .btn.is-disabled:hover { background: var(--bg-2); border-color: var(--line); }

.tag {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 2px 6px; border: 1px solid var(--line); border-radius: 3px; color: var(--ink-3); background: var(--bg-1);
}

.label {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--ink-3); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}

/* shell */
.shell {
  display: grid;
  grid-template-columns: 252px 1fr 280px;
  grid-template-rows: 38px 1fr 24px;
  height: 100vh;
  width: 100vw;
  gap: 0;
}
.shell > .topbar { grid-column: 1 / -1; grid-row: 1; }
.shell > .rail   { display: none; }
.shell > .side   { grid-column: 1; grid-row: 2; }
.shell > .main   { grid-column: 2; grid-row: 2; min-width: 0; }
.shell > .insp   { grid-column: 3; grid-row: 2; }
.shell > .status { grid-column: 1 / -1; grid-row: 3; }

/* panels */
.panel { background: var(--bg-1); border: 1px solid var(--line-soft); border-radius: var(--radius-2); }

/* grid background */
.grid-bg {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* striped placeholder */
.stripe-placeholder {
  background-color: var(--bg-inset);
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0, transparent 10px,
    color-mix(in oklch, var(--line) 50%, transparent) 10px,
    color-mix(in oklch, var(--line) 50%, transparent) 11px
  );
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-2);
  position: relative;
}
.stripe-placeholder .lbl {
  position: absolute; top: 8px; left: 10px;
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.08em;
}

/* focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* tables */
.dtable { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 11px; }
.dtable th { text-align: left; font-weight: 500; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.06em; font-size: 10px; padding: 6px 10px; border-bottom: 1px solid var(--line-soft); position: sticky; top: 0; background: var(--bg-1); z-index: 1; }
.dtable td { padding: 0 10px; height: var(--density-row); border-bottom: 1px solid var(--line-soft); color: var(--ink-2); }
.dtable tr:hover td { background: var(--bg-2); color: var(--ink); }
.dtable tr.selected td { background: color-mix(in oklch, var(--accent) 14%, transparent); color: var(--ink); }

/* icon */
.ic { width: 14px; height: 14px; stroke-width: 1.25; stroke: currentColor; fill: none; }
.ic-lg { width: 18px; height: 18px; stroke-width: 1.25; stroke: currentColor; fill: none; }

/* animations */
@keyframes blink { 0%, 60% { opacity: 1 } 61%, 100% { opacity: 0.2 } }
@keyframes pulse { 0%, 100% { opacity: 0.6 } 50% { opacity: 1 } }
@keyframes sweep { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.blink { animation: blink 1.2s steps(2, end) infinite; }
.pulse { animation: pulse 1.4s ease-in-out infinite; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 1200px) {
  .shell {
    grid-template-columns: 252px 1fr;
  }

  .shell > .insp {
    display: none;
  }
}

@media (max-width: 960px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: 38px auto 1fr 24px;
  }

  .shell > .topbar {
    grid-column: 1;
    grid-row: 1;
    grid-template-columns: 48px 1fr auto !important;
  }

  .shell > .topbar > :nth-child(3) {
    display: none !important;
  }

  .shell > .side {
    grid-column: 1;
    grid-row: 2;
    max-height: 240px;
    border-right: 0 !important;
    border-bottom: 1px solid var(--line);
  }

  .shell > .main {
    grid-column: 1;
    grid-row: 3;
    overflow: auto !important;
  }

  .shell > .status {
    grid-column: 1;
    grid-row: 4;
    overflow-x: auto;
    white-space: nowrap;
  }
}