/* ── Reset & base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #f4fbff;
  --surface:    #ffffff;
  --surface-alt:#e9f6ff;
  --table-head: #e4f1f8;
  --table-row:  #f2f8fb;
  --table-empty:#eaf2f6;
  --border:     #7ea9c4;
  --text:       #16364e;
  --text-muted: #5c7b93;
  --accent:     #005ea8;
  --accent-soft:#27a7e8;
  --green:      #a6ce39;
  --green-deep: #7fa62a;

  --pass:       #1f7a36;
  --pass-bg:    #2f9e44;
  --warn:       #27a7e8;
  --warn-bg:    #e4f5ff;
  --fail:       #b42318;
  --fail-bg:    #d92d20;
  --proposed:   #1b84c6;
  --proposed-bg:#e8f6ff;
  --na:         #4b5563;
  --na-bg:      #9ca3af;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

html { font-size: 14px; }
body {
  background:
    radial-gradient(circle at top right, rgba(39, 167, 232, 0.14), transparent 28%),
    radial-gradient(circle at top left, rgba(166, 206, 57, 0.14), transparent 24%),
    linear-gradient(180deg, #fbfeff 0%, var(--bg) 100%);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header ────────────────────────────────────────────────────────────── */
header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem 2rem;
  flex-wrap: wrap;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: inherit;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-logo {
  height: 52px;
  width: auto;
  display: block;
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}
.brand-kicker {
  color: var(--accent-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
header h1 {
  font-size: 1.05rem;
  font-weight: 700;
  white-space: nowrap;
}
nav { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.nav-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  font-size: 0.85rem;
  transition: border-color 0.15s, color 0.15s, background 0.15s, transform 0.15s;
}
.nav-btn:hover {
  border-color: var(--accent-soft);
  color: var(--text);
  background: var(--surface-alt);
  transform: translateY(-1px);
}
.nav-btn.active {
  border-color: var(--accent);
  color: var(--text);
  background: linear-gradient(135deg, rgba(39, 167, 232, 0.12), rgba(166, 206, 57, 0.14));
}

/* ── Main ──────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
}
#loading { color: var(--text-muted); padding: 2rem 0; }

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Controls bar ───────────────────────────────────────────────────────── */
.controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.controls label { font-size: 0.85rem; color: var(--text-muted); }
.controls select, .controls input {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
}
.controls select:focus, .controls input:focus {
  outline: 2px solid var(--accent-soft);
}

/* ── Status badge ───────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  border-radius: 4px;
  padding: 0.1rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-required  { background: var(--pass-bg);     color: var(--green-deep); border: 1px solid var(--pass); }
.badge-optional  { background: var(--warn-bg);     color: var(--accent); border: 1px solid var(--warn); }
.badge-proposed  { background: var(--proposed-bg); color: var(--accent); border: 1px solid var(--proposed); }
.badge-wont-fix  { background: var(--fail-bg);     color: var(--fail); border: 1px solid var(--fail); }
.badge-na        { background: #ffffff;            color: var(--na); border: 1px solid var(--na); }
.badge-global    { background: #edf7d1; color: var(--green-deep); border: 1px solid var(--green); }
.badge-accepted  { background: var(--pass-bg);     color: var(--green-deep); border: 1px solid var(--pass); }
.badge-deprecated{ background: var(--na-bg);       color: var(--text-muted); border: 1px solid var(--na); }
.badge-pass      { background: var(--pass-bg);     color: #ffffff; border: 1px solid var(--pass); }
.badge-fail      { background: var(--fail-bg);     color: #ffffff; border: 1px solid var(--fail); }
.badge-not_done  { background: var(--na-bg);       color: #111827; border: 1px solid var(--na); }
.badge-category  { background: var(--surface-alt); color: var(--text); border: 1px solid var(--border); text-transform: none; }

/* ── Section heading ────────────────────────────────────────────────────── */
.view-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.view-subtitle { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1.25rem; }

/* ── Matrix view ────────────────────────────────────────────────────────── */
.matrix-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}
.legend-item { display: flex; align-items: center; gap: 0.4rem; }
.legend-swatch {
  width: 14px; height: 14px; border-radius: 3px; flex-shrink: 0;
}

.matrix-scroll { overflow-x: auto; }
table.matrix {
  border-collapse: collapse;
  min-width: 100%;
  font-size: 0.82rem;
}
table.matrix th, table.matrix td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.6rem;
  white-space: nowrap;
}
table.matrix thead th {
  background: var(--table-head);
  position: sticky;
  top: 0;
  font-weight: 600;
}
table.matrix tbody th {
  background: var(--table-head);
  position: sticky;
  left: 0;
  z-index: 1;
  text-align: left;
  font-family: var(--mono);
  font-weight: 500;
}
.cell-subtext {
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.72rem;
  line-height: 1.35;
  margin-top: 0.2rem;
  white-space: normal;
}
table.matrix td { text-align: center; }

/* Matrix cell colours */
.cell-required  { background: var(--pass-bg);     color: var(--green-deep); }
.cell-optional  { background: var(--warn-bg);     color: var(--accent); }
.cell-proposed  { background: var(--proposed-bg); color: var(--accent); }
.cell-wont-fix  { background: var(--fail-bg);     color: var(--fail); }
.cell-pass      { background: var(--pass-bg);     color: #ffffff; font-weight: 700; }
.cell-fail      { background: var(--fail-bg);     color: #ffffff; font-weight: 700; }
.cell-not_done  { background: var(--na-bg);       color: #111827; font-weight: 700; }
.cell-na,
.cell-missing   { background: #ffffff;            color: #475569; }
.cell-global    { background: #edf7d1;            color: var(--green-deep); }
.cell-link { cursor: pointer; }
.cell-link:hover { outline: 2px solid var(--fail); outline-offset: -2px; }

/* ── Cards / lists ──────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(0, 94, 168, 0.06);
  padding: 1rem;
}
.card h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.4rem; }
.card .card-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.6rem; }
.card p  { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ── Detail tables ──────────────────────────────────────────────────────── */
table.detail {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
table.detail th, table.detail td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
}
table.detail thead th { background: var(--surface); font-weight: 600; }
table.detail tbody tr:nth-child(even) { background: var(--table-row); }
table.detail code {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: #edf6fb;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.detail-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: linear-gradient(135deg, rgba(0, 94, 168, 0.08), rgba(166, 206, 57, 0.18));
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.action-btn:hover {
  text-decoration: none;
  border-color: var(--green);
  background: linear-gradient(135deg, rgba(0, 94, 168, 0.12), rgba(166, 206, 57, 0.26));
}

.layer-section { margin-bottom: 1.5rem; }
.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* ── Proposals feed ─────────────────────────────────────────────────────── */
.proposal-list { display: flex; flex-direction: column; gap: 0.75rem; }
.proposal-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.proposal-item .issue-num {
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 0.8rem;
  white-space: nowrap;
  padding-top: 0.1rem;
}
.proposal-item h4 { font-size: 0.9rem; font-weight: 600; }
.proposal-item .proposal-labels { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.4rem; }
.gh-label {
  display: inline-block;
  border-radius: 12px;
  padding: 0.1rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
}
.proposal-note { color: var(--text-muted); font-size: 0.82rem; margin-top: 0.4rem; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .header-inner { gap: 0.75rem; }
  .brand { align-items: flex-start; }
  .brand-logo { height: 42px; }
  header h1 { font-size: 0.9rem; white-space: normal; }
  .nav-btn { padding: 0.3rem 0.6rem; font-size: 0.78rem; }
  main { padding: 1rem; }
}