/*
 * Shard web — global base + shared primitives for the STRIP TOWER world.
 * Component-specific layout lives in each component's scoped <style>.
 * Shared primitives here: the severity edge-dot (the strip's edge tab, in miniature),
 * the bay grammar, mono callsigns, annotated-source diff gutters, and real <button>s.
 * The strip world defines its own tokens (warm card / cool desk / edge colors / airspace
 * accent) in tokens.css; this file only composes them.
 */
@import "./web/lib/theme/tokens.css";

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

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.55;
  font-feature-settings: "cv05" 1, "cv08" 1, "ss01" 1; /* Inter: disambiguated 0Il1, flat 3 */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--r-xs); }

/* Hairline scrollbars — calm, structural */
* { scrollbar-width: thin; scrollbar-color: var(--hairline-strong) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--hairline-strong); border-radius: var(--r-pill); border: 2px solid var(--canvas); }
*::-webkit-scrollbar-track { background: transparent; }

/* ── Shared primitives ─────────────────────────────────── */

.mono { font-family: var(--font-mono); font-feature-settings: "calt" 0, "liga" 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.hairline { border: 0; border-top: 1px solid var(--hairline); margin: 0; }

/*
 * Severity dot — the strip's edge tab in miniature. Recognizable with all content removed.
 * Green = clear (idle/streaming); amber = hold (permission); red = urgent (error).
 * Streaming carries a calm concentric pulse — state, not decoration.
 */
.sev-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: var(--r-pill);
  background: var(--sev-success);
  flex: none;
  position: relative;
}
.sev-dot.is-streaming { background: var(--sev-info); }
.sev-dot.is-permission { background: var(--sev-warn); }
.sev-dot.is-error { background: var(--sev-error); }
.sev-dot.is-compact { background: var(--sev-info); opacity: 0.7; }
/* Live streaming: a calm concentric pulse — state, not decoration */
.sev-dot.is-streaming::after {
  content: "";
  position: absolute; inset: -3px;
  border-radius: var(--r-pill);
  border: 1px solid var(--live-pulse);
  animation: sev-pulse 1.8s var(--ease-soft) infinite;
}
@keyframes sev-pulse {
  0% { transform: scale(0.7); opacity: 0.7; }
  70% { transform: scale(1.5); opacity: 0; }
  100% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .sev-dot.is-streaming::after { animation: none; opacity: 0; }
}

/* Severity tag — inline status chip that inherits a severity */
.sev-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  padding: 2px 7px; border-radius: var(--r-xs);
  border: 1px solid var(--hairline); color: var(--ink-2);
  background: var(--surface);
}
.sev-tag .sev-dot { width: 7px; height: 7px; }
.sev-tag.is-permission { color: var(--sev-warn-ink); border-color: color-mix(in srgb, var(--sev-warn) 35%, transparent); background: var(--sev-warn-bg); }
.sev-tag.is-error { color: var(--sev-error-ink); border-color: color-mix(in srgb, var(--sev-error) 35%, transparent); background: var(--sev-error-bg); }
.sev-tag.is-streaming { color: var(--sev-info-ink); border-color: color-mix(in srgb, var(--sev-info) 32%, transparent); background: var(--sev-info-bg); }

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--hairline);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--r-sm);
  padding: 6px 12px;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
  display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.btn:hover { border-color: var(--hairline-strong); background: var(--surface-hover); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn--primary { background: var(--accent); color: var(--accent-on); border-color: var(--accent); }
.btn--primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
.btn--danger { color: var(--sev-error-ink); border-color: color-mix(in srgb, var(--sev-error) 35%, transparent); }
.btn--danger:hover { background: var(--sev-error-bg); border-color: color-mix(in srgb, var(--sev-error) 55%, transparent); }
.btn--ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn--ghost:hover { background: var(--surface-hover); border-color: var(--hairline); color: var(--ink); }

.kbd {
  font-family: var(--font-mono); font-size: 11px;
  padding: 1px 5px; border-radius: var(--r-xs);
  border: 1px solid var(--hairline); background: var(--surface-sunken);
  color: var(--ink-3);
}

/* Tracked uppercase bay/section labels — the rack's metal-stamped header voice. */
.tracked {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* The route spine — the vertical rule that connects waypoints in a flight plan. */
.spine { position: relative; }
.spine::before {
  content: ""; position: absolute;
  left: 11px; top: 0; bottom: 0;
  border-left: 1px solid var(--hairline);
}

/* Visually hidden but available to assistive tech. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* Annotated-source gutter markers (diff add/remove) reused by Descriptor + flight plan */
.gutter-add { color: var(--diff-add); width: 1.5ch; display: inline-block; text-align: center; user-select: none; }
.gutter-remove { color: var(--diff-remove); width: 1.5ch; display: inline-block; text-align: center; user-select: none; }