/* ============================================================
   Drafting Table — app layer, on top of Fathom Works (fathom.css)
   ------------------------------------------------------------
   fc-* = design system, never modified here.
   dt-* = this app, BEM-ish, matching the fc- convention.
   ============================================================ */

:root {
  /* --foam-500 (#6b7d8f) measures 4.39:1 on --depth-600 (panel) --
     FAILS AA as body text inside a panel, and only passes on
     --depth-800 by 0.04. A neutral step in the existing grey ramp,
     not a new hue, so the one-accent guardrail still holds. */
  --foam-400: #8899a8;

  --dt-col: 300px;
  --dt-gap: 12px;
  --dt-row: 4px;
  --dt-media-wide: 169px;
  --dt-media-square: 300px;
  --dt-media-portrait: 450px;
  --dt-media-tall: 660px;
  --dt-body-h: 152px;
  --dt-note-lines: 3;

  --dt-mat: var(--depth-900);
  --dt-mat-line-hover: var(--foam-500);
  --dt-chip-line: var(--line);

  --dt-working: var(--hold);
  --dt-failed: var(--sell);
  --dt-fresh: var(--sonar);
  --dt-stale: var(--foam-400);

  --dt-cover-ratio: 4 / 3;
  --dt-cover-gutter: 1px;

  --dt-rail: 400px;
  --dt-page-max: 1380px;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--surface-app); color: var(--text-body); font-family: var(--font-mono); }

/* ---- Topbar --------------------------------------------------- */
.dt-topbar {
  display: flex; align-items: center; justify-content: space-between;
  height: 41px; padding: 0 16px;
  background: var(--surface-app); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.dt-topbar__brand { display: flex; align-items: center; gap: 12px; }
.dt-topbar__wordmark { font-size: 14px; color: var(--foam-100); }
.dt-topbar__status { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--foam-400); }

/* ---- Page shell ------------------------------------------------ */
.dt-page { max-width: var(--dt-page-max); margin: 0 auto; padding: 24px 16px 64px; }

/* ---- Section rule: the panel title without the panel ----------- */
.dt-rule { display: flex; align-items: center; gap: var(--space-6, 12px); margin-bottom: var(--space-6, 12px); }
.dt-rule__label {
  color: var(--sonar); font-size: var(--text-sm); letter-spacing: var(--tracking-wide);
  text-transform: lowercase; white-space: nowrap;
}
.dt-rule__label::before { content: '[ '; }
.dt-rule__label::after { content: ' ]'; }
.dt-rule__line { flex: 1; height: 1px; background: var(--line); }
.dt-rule__meta {
  color: var(--foam-400); font-size: var(--text-2xs); text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ---- Board index: cover mosaic, a contact sheet not a collage -- */
.dt-boards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--dt-gap);
}
.dt-board {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--line); border-radius: var(--radius-md); overflow: hidden;
  background: var(--surface-card);
  transition: border-color var(--dur, 0.2s) var(--ease, ease);
}
.dt-board:hover { border-color: var(--dt-mat-line-hover); }
.dt-board__cover {
  aspect-ratio: var(--dt-cover-ratio); background: var(--dt-mat);
  display: grid; gap: var(--dt-cover-gutter); background-color: var(--surface-app);
  border-bottom: 1px solid var(--line);
}
.dt-board__cover--empty { display: flex; align-items: center; justify-content: center; color: var(--foam-500); font-size: 11px; }
.dt-board__cover img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.dt-board__name { padding: 10px 12px; font-size: var(--text-sm); color: var(--foam-100); }
.dt-board--new {
  border-style: dashed; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; aspect-ratio: var(--dt-cover-ratio); color: var(--foam-400); background: var(--depth-900);
  text-decoration: none;
}
.dt-board--new:hover { border-color: var(--sonar); color: var(--sonar); }
.dt-board--new__plus { font-size: 28px; line-height: 1; }
.dt-board--new__trigger { all: unset; display: contents; cursor: pointer; }
.dt-board--new__form { display: flex; flex-direction: column; gap: 8px; width: 100%; padding: 0 16px 16px; }

/* ---- Auth page (login) ------------------------------------------ */
.dt-auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--depth-1000); position: relative; overflow: hidden;
}
.dt-auth-rings { position: absolute; top: 50%; left: 50%; width: 2px; height: 2px; pointer-events: none; }
.dt-auth-ring {
  position: absolute; left: 50%; top: 50%;
  width: 760px; height: 760px; margin: -380px 0 0 -380px;
  border: 1px solid var(--sonar); border-radius: 50%;
  opacity: 0; animation: dtping 7s linear infinite;
}
.dt-auth-ring:nth-child(2) { animation-delay: 2.33s; }
.dt-auth-ring:nth-child(3) { animation-delay: 4.67s; }
.dt-auth-inner {
  position: relative; z-index: 1; width: 380px;
  display: flex; flex-direction: column; align-items: center; gap: 28px; padding: 40px 0;
}
.dt-auth-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.dt-auth-headline { font-size: 32px; font-weight: 800; line-height: 1; }
.dt-auth-sub { font-size: 10px; letter-spacing: 4px; color: var(--foam-500); }
@keyframes dtping {
  0% { transform: scale(0.2); opacity: 0; }
  8% { opacity: 0.45; }
  100% { transform: scale(1); opacity: 0; }
}

/* ---- Alerts ------------------------------------------------------ */
.dt-alert { padding: 8px 12px; border-radius: var(--radius-sm); font-size: var(--text-sm); margin-top: 12px; display: block; }
.dt-alert--danger { background: rgba(255,124,124,0.08); border: 1px solid rgba(255,124,124,0.3); color: var(--sell); }

/* ---- Project detail page ------------------------------------- */
.dt-project-layout {
  display: grid;
  grid-template-columns: var(--dt-rail) 1fr;
  gap: var(--dt-gap);
}
.dt-project-rail {
  display: flex;
  flex-direction: column;
  gap: var(--dt-gap);
  position: sticky;
  top: var(--space-6);
}
.dt-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--dt-gap);
}
.dt-item {
  border: 1px solid var(--line);
  background: var(--surface-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.dt-item:hover { border-color: var(--dt-mat-line-hover); }
.dt-item__media {
  aspect-ratio: 4/3;
  background: var(--dt-mat);
  overflow: hidden;
}
.dt-item__media img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.dt-item__body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dt-item__title { color: var(--foam-100); }
.dt-item__tag {
  text-transform: uppercase;
  color: var(--foam-400);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
}
.dt-item__note {
  color: var(--foam-200);
  -webkit-line-clamp: var(--dt-note-lines);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dt-swatches { display: flex; flex-wrap: wrap; gap: 4px; }
.dt-swatch {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.35);
}
.dt-item__actions { display: flex; gap: 6px; margin-top: 4px; flex-wrap: wrap; }
.dt-item__actions form { margin: 0; display: inline-flex; }
.dt-item__edit { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--line); display: flex; flex-direction: column; gap: 8px; }
.dt-swatch-row { display: flex; gap: 6px; }
.dt-bullet { color: var(--foam-200); font-size: var(--text-sm); margin: 0 0 8px; }
.dt-decisions,
.dt-questions {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--foam-200);
  font-size: var(--text-sm);
  padding: 0;
  margin: 0;
}
.dt-decisions__label { color: var(--foam-100); }
.dt-decisions__edit { margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.dt-decisions__new { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.dt-empty { color: var(--foam-500); font-style: italic; font-size: var(--text-sm); }

@media (max-width: 1024px) {
  .dt-project-layout { grid-template-columns: 1fr; }
  .dt-project-rail { position: static; }
}

/* ---- Utilities ----------------------------------------------- */
.w-100 { width: 100%; }
.d-none { display: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .dt-auth-ring { animation: none; opacity: 0.15; }
}