/* ChmodCalc — warm "phosphor terminal" dark theme.
   Amber primary + cyan accent (from site.config.json), dim warm surfaces.
   Declared in both modes so the palette is identical regardless of
   prefers-color-scheme and load order. */

:root {
  --bg: #100e0a;
  --surface: #17140e;
  --surface-2: #211c12;
  --text: #f0e9d8;
  --text-dim: #a89c83;
  --border: #3b3322;
  --cx-ok: #9ccc65;
  --cx-bad: #ff8a65;
  --cx-dim: #7d7260;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #100e0a;
    --surface: #17140e;
    --surface-2: #211c12;
    --text: #f0e9d8;
    --text-dim: #a89c83;
    --border: #3b3322;
  }
}
html {
  color-scheme: dark; /* native controls (checkbox/scrollbars) go dark */
}

/* ---------- calculator shell ---------- */
.cx {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem 1.1rem 1rem;
  margin: 1.4rem 0 1.8rem;
  box-shadow: 0 10px 34px -20px rgba(0, 0, 0, 0.75);
}
@media (min-width: 54rem) {
  .prose .cx {
    width: min(64rem, calc(100vw - 2.5rem));
  }
}

.cx-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 1.1rem;
  align-items: start;
}
@media (max-width: 46rem) {
  .cx-grid { grid-template-columns: 1fr; }
}

/* ---------- checkbox matrix ---------- */
.cx-matrix {
  font-family: var(--mono);
  font-size: 0.9rem;
  user-select: none;
}
.cx-row {
  display: grid;
  grid-template-columns: 5.2rem repeat(3, 1fr);
  align-items: stretch;
  gap: 0.3rem;
  margin-bottom: 0.3rem;
}
.cx-head {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.cx-head span {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0;
}
.cx-head .cx-who { justify-content: flex-start; }
.cx-who {
  display: flex;
  align-items: center;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}
.cx-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.cx-cell:hover { border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); }
.cx-cell input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.cx-cell:has(input:checked) {
  background: color-mix(in srgb, var(--primary) 16%, var(--bg));
  border-color: color-mix(in srgb, var(--primary) 65%, var(--border));
}
.cx-row-sp { margin-top: 0.55rem; }
.cx-sp {
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.45rem 0 0.35rem;
}
.cx-sp i {
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.cx-sp:has(input:checked) i { color: var(--primary); }

/* ---------- input column ---------- */
.cx-io { display: flex; flex-direction: column; gap: 0.7rem; min-width: 0; }
.cx-field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.cx-field > span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.cx-field code { font-size: 0.85em; }
.cx input[type="text"], .cx input:not([type]) {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.cx input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}
.cx input.invalid {
  border-color: var(--cx-bad);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cx-bad) 18%, transparent);
}
#cx-oct { width: 7rem; letter-spacing: 0.15em; }
#cx-sym { width: 11.5rem; letter-spacing: 0.08em; }
.cx-clauserow { display: flex; gap: 0.45rem; }
.cx-clauserow input { flex: 1 1 auto; min-width: 0; }
.cx-dir {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  cursor: pointer;
}
.cx-dir input { accent-color: var(--accent); }

/* ---------- description + command ---------- */
.cx-desc {
  margin: 1rem 0 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-dim);
  min-height: 1.5em;
}
.cx-desc::before {
  content: '→ ';
  color: var(--accent);
}
.cx-cmd {
  margin-top: 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
}
.cx-cmdrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  padding: 0.15rem 0;
}
.cx-cmdrow code { background: none; padding: 0; font-size: inherit; }
.cx-cmdrow b { color: var(--primary); font-weight: 700; }
.cx-cmdrow.dim { color: var(--cx-dim); font-size: 0.84rem; }
.cx-ps { color: var(--accent); font-weight: 700; user-select: none; }
#cx-file {
  width: 8.5rem;
  font-size: 0.95rem !important;
  padding: 0.2rem 0.45rem !important;
}
.cx-rnote {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.cx-rnote code { font-size: 0.78rem; }

/* ---------- status ---------- */
.cx-status {
  margin: 0.75rem 0 0;
  font-family: var(--mono);
  font-size: 0.83rem;
  color: var(--text-dim);
  min-height: 1.5em;
}
.cx-status.ok { color: var(--cx-ok); }
.cx-status.bad { color: var(--cx-bad); }

/* ---------- buttons ---------- */
.cx-btn {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.42rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, filter 0.15s;
}
.cx-btn:hover { border-color: color-mix(in srgb, var(--primary) 60%, var(--border)); }
.cx-btn.sm { font-size: 0.75rem; padding: 0.3rem 0.7rem; }
.cx-btn.ghost { background: transparent; color: var(--text-dim); }
.cx-btn.ghost:hover { color: var(--text); }

/* ---------- presets table ---------- */
.cx-presets { margin-top: 1.2rem; }
.cx-presets h2 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 0.5rem;
}
.cx-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.cx-table th, .cx-table td {
  text-align: left;
  padding: 0.42rem 0.55rem;
  border-bottom: 1px solid var(--border);
}
.cx-table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  border-bottom-color: var(--border);
}
.cx-table td { color: var(--text); }
.cx-table td:nth-child(3) { color: var(--text-dim); }
.cx-table code { white-space: nowrap; }
.cx-table button {
  font: inherit;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.22rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--primary);
  cursor: pointer;
}
.cx-table button:hover { border-color: var(--primary); }
.cx-table tr:last-child td { border-bottom: none; }

/* ---------- article polish ---------- */
.prose pre { background: var(--bg); border: 1px solid var(--border); }
.prose code { background: var(--surface-2); }
.prose pre code { background: none; }
.prose table code { white-space: nowrap; }
.prose .formula {
  display: block;
  font-family: var(--mono);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  margin: 0.8rem 0;
}

@media (max-width: 480px) {
  .cx { padding: 0.8rem; }
  .cx-row { grid-template-columns: 4.2rem repeat(3, 1fr); gap: 0.22rem; }
  .cx-who { font-size: 0.7rem; }
  #cx-file { width: 6.5rem; }
  /* ≥40px touch targets on phones (desktop look unchanged) */
  .cx-cell { min-height: 2.5rem; padding: 0.55rem 0; }
  .cx input[type="text"], .cx input:not([type]) { min-height: 2.5rem; }
  .cx-btn, .cx-btn.sm { min-height: 2.5rem; }
  .cx-table button { min-height: 2.5rem; padding: 0.45rem 0.7rem; }
  .cx-dir { min-height: 2.5rem; }
}