/* ====================================================================
   SETTINGS MODAL — preferences sliders + font cards + view-mode cards
   ==================================================================== */

.set-backdrop {
  position: fixed; inset: 0;
  z-index: 230;   /* above paper(200) + contact(220), below search(240) */
  display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(0);
          backdrop-filter: blur(0);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, backdrop-filter 0.22s ease, -webkit-backdrop-filter 0.22s ease;
}
.set-backdrop.open {
  opacity: 1; pointer-events: auto;
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
}

.set-modal {
  position: relative;
  width: 560px; max-width: calc(100vw - 48px);
  max-height: calc(100vh - 64px);
  background: var(--io-surface-raised);
  border: 1px solid var(--io-accent-dim);
  border-radius: var(--io-radius-xs);
  box-shadow:
    0 24px 64px rgba(0,0,0,0.7),
    0 0 0 1px var(--io-accent-dim),
    0 0 48px var(--io-accent-glow);
  display: flex; flex-direction: column;
  overflow: hidden;
  transform: scale(0.96) translateY(8px);
  opacity: 0;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.set-backdrop.open .set-modal { transform: scale(1) translateY(0); opacity: 1; }
.set-modal::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--io-accent), transparent);
}

/* ─── head ─── */
.set-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--io-border);
}
.set-head .ic {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--io-accent-subtle);
  border: 1px solid var(--io-accent-dim);
  border-radius: var(--io-radius-xs);
  color: var(--io-accent);
  font-size: var(--io-fs-base);
}
.set-head .info { min-width: 0; }
.set-head .kicker {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-accent);
  text-transform: uppercase;
}
.set-head .ttl {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-lg);
  color: var(--io-text-primary);
  font-weight: 500;
  margin-top: 2px;
}
.set-head .close {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--io-text-tertiary);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
  background: transparent;
  cursor: pointer;
  transition: color 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}
.set-head .close:hover { color: var(--io-accent); border-color: var(--io-accent-dim); background: var(--io-accent-subtle); }

/* ─── tabs ─── */
.set-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 10px 22px;
  border-bottom: 1px solid var(--io-border);
  background: var(--io-surface-base);
}
.set-tab {
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
  background: var(--io-surface-sunken);
  color: var(--io-text-tertiary);
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease, box-shadow 0.12s ease;
}
.set-tab:hover { color: var(--io-text-primary); border-color: var(--io-text-tertiary); background: var(--io-surface-overlay); }
.set-tab.active {
  color: var(--io-accent);
  border-color: var(--io-accent);
  background: var(--io-accent-subtle);
  box-shadow: 0 0 16px var(--io-accent-glow);
}
.set-tab i { font-size: var(--io-fs-sm); }
.set-tab-pane[hidden] { display: none; }

/* ─── body ─── */
.set-body {
  overflow-y: auto;
  padding: 4px 22px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--io-border) transparent;
}
.set-body::-webkit-scrollbar { width: 6px; }
.set-body::-webkit-scrollbar-thumb { background: var(--io-border); }
.set-body::-webkit-scrollbar-track { background: transparent; }

.set-section {
  padding-top: 18px;
  border-top: 1px solid var(--io-border-subtle);
}
.set-section:first-of-type { border-top: none; padding-top: 16px; }
.set-section-label {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.set-section-label::before { content: "//"; color: var(--io-text-disabled); }

/* ─── profile row (no edit btn — IP-bound avatar) ─── */
.set-profile {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--io-surface-sunken);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
}
.set-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 1px solid var(--io-accent-dim);
  background: var(--io-surface-overlay);
  box-shadow: 0 0 16px var(--io-accent-glow);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-sm);
  letter-spacing: 1px;
  color: var(--io-text-primary);
  position: relative;
  overflow: hidden;
}
.set-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.set-avatar .dot {
  position: absolute;
  right: 0; bottom: 0;
  width: 14px; height: 14px;
  background: var(--io-success);
  border-radius: 50%;
  border: 2px solid var(--io-surface-sunken);
  z-index: 1;
}
.set-name {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-base);
  font-weight: 600;
  color: var(--io-text-primary);
}
.set-handle {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  margin-top: 3px;
}
.set-handle .acc { color: var(--io-accent); }

/* ─── sliders ─── */
.set-slider-row {
  display: grid;
  grid-template-columns: 120px 1fr 80px;
  align-items: center;
  gap: 14px;
  padding: 8px 0;
}
.set-slider-row + .set-slider-row { border-top: 1px solid var(--io-border-subtle); }
.set-slider-lbl {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-secondary);
  text-transform: uppercase;
}
.set-slider-val {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-sm);
  color: var(--io-accent);
  text-align: right;
}
.set-slider-val .unit {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  margin-left: 3px;
}

.set-slider {
  width: 100%;
  -webkit-appearance: none; appearance: none;
  height: 4px;
  background: var(--io-surface-overlay);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
  outline: none;
  cursor: pointer;
}
.set-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 18px;
  background: var(--io-accent);
  border: 1px solid var(--io-accent-bright);
  border-radius: var(--io-radius-xs);
  cursor: grab;
  box-shadow: 0 0 12px var(--io-accent-glow);
  transition: filter 0.12s ease;
}
.set-slider::-webkit-slider-thumb:hover { filter: brightness(1.15); }
.set-slider::-moz-range-thumb {
  width: 14px; height: 18px;
  background: var(--io-accent);
  border: 1px solid var(--io-accent-bright);
  border-radius: var(--io-radius-xs);
  cursor: grab;
  box-shadow: 0 0 12px var(--io-accent-glow);
}

/* ─── card row (fonts + view-modes) ─── */
.set-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.set-card {
  display: flex; flex-direction: column; align-items: stretch;
  background: var(--io-surface-sunken);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
  padding: 12px;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
  position: relative;
  text-align: left;
  min-height: 88px;
}
.set-card:hover { border-color: var(--io-text-tertiary); background: var(--io-surface-overlay); }
.set-card.active {
  background: var(--io-accent-subtle);
  border-color: var(--io-accent);
  box-shadow: 0 0 0 1px var(--io-accent), 0 0 16px var(--io-accent-glow);
}
.set-card .check {
  position: absolute;
  top: 8px; right: 8px;
  width: 16px; height: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--io-accent);
  border-radius: var(--io-radius-xs);
  color: var(--io-on-accent);
  font-size: 9px;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.12s ease, transform 0.12s ease;
}
.set-card.active .check { opacity: 1; transform: scale(1); }

/* font card preview — uses xl token; vt323's glyphs read smaller at 24px
   so we give it a touch more visual weight via em scaling on the preview
   line only. */
.set-card .preview {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  color: var(--io-text-primary);
  font-size: var(--io-fs-xl);
  letter-spacing: 0;
  padding: 6px 0 8px;
}
.set-card[data-font="vt323"] .preview { font-size: calc(var(--io-fs-xl) * 1.2); }
.set-card .name {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
}
.set-card.active .name { color: var(--io-accent); }

/* view-mode card */
.set-card .diagram {
  width: 100%;
  height: 44px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
}
.set-card .diagram svg { display: block; }
.set-card .mode-name {
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-sm);
  color: var(--io-text-primary);
  font-weight: 600;
}
.set-card.active .mode-name { color: var(--io-accent); }
.set-card .mode-sub {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ─── footer ─── */
.set-foot {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 22px;
  border-top: 1px solid var(--io-border);
  background: var(--io-surface-base);
}
.set-foot .reset {
  font-family: var(--io-font-pixel);
  font-size: var(--io-fs-micro);
  letter-spacing: 1.5px;
  color: var(--io-text-tertiary);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  transition: color 0.12s ease;
}
.set-foot .reset:hover { color: var(--io-accent); }
.set-foot .grow { flex: 1; }

.set-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 16px;
  background: var(--io-surface-raised);
  border: 1px solid var(--io-border);
  border-radius: var(--io-radius-xs);
  color: var(--io-text-secondary);
  font-family: var(--io-font-mono);
  font-size: var(--io-fs-sm);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease, filter 0.12s ease, box-shadow 0.12s ease;
}
.set-btn:hover { border-color: var(--io-text-tertiary); color: var(--io-text-primary); background: var(--io-surface-overlay); }
.set-btn.primary {
  background: linear-gradient(135deg, var(--io-accent) 0%, var(--io-accent-bright) 100%);
  border-color: transparent;
  color: var(--io-on-accent);
  box-shadow: 0 0 0 1px rgba(255,0,93,0.4), 0 0 24px var(--io-accent-glow);
}
.set-btn.primary:hover {
  color: var(--io-on-accent);
  background: linear-gradient(135deg, var(--io-accent) 0%, var(--io-accent-bright) 100%);
  filter: brightness(1.1);
  box-shadow: 0 0 0 1px rgba(255,0,93,0.6), 0 0 32px var(--io-accent-glow);
}
.set-btn.primary i { color: var(--io-on-accent); }