/* =====================================================================
   CSV ⇄ JSON Converter — app.css
   Extends the shared design system (base.css). Colors derive ONLY from
   base.css CSS variables so dark + light themes both work.
   ===================================================================== */

[data-theme="light"] .icon-sun { display: none; }
.icon-moon { display: none; }

/* ===================== Toolbar ===================== */
.toolbar-panel { padding: var(--space-4) var(--space-5); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-4);
}
.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}
.toolbar .spacer { flex: 1; }

/* ===================== Status badge ===================== */
#statusBadge .status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted); flex: none;
  transition: background var(--dur-2), box-shadow var(--dur-2);
}
#statusBadge.is-valid { background: var(--success-soft); color: var(--success); border-color: transparent; }
#statusBadge.is-valid .status-dot { background: var(--success); box-shadow: 0 0 10px var(--success); }
#statusBadge.is-error { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
#statusBadge.is-error .status-dot { background: var(--danger); box-shadow: 0 0 10px var(--danger); }

/* ===================== Two-pane editor ===================== */
.editor {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-top: var(--space-5);
}
.pane { display: flex; flex-direction: column; padding: 0; overflow: hidden; min-width: 0; }
.pane-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  padding: var(--space-4) var(--space-5); border-bottom: 1px solid var(--border);
}
.pane-title { margin: 0; font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--text-secondary); }
.pane-meta { font-size: 12px; }

.pane--input #input {
  flex: 1; width: 100%; min-height: 460px; border: none; border-radius: 0;
  background: transparent; padding: var(--space-5); font-size: 13.5px; line-height: 1.7;
  resize: none; tab-size: 2;
}
.pane--input #input:focus { box-shadow: none; background: transparent; }

.pane--output { position: relative; }
.output-scroll { position: relative; flex: 1; min-height: 460px; overflow: auto; }
.output-code { margin: 0; padding: var(--space-5); font-size: 13.5px; line-height: 1.7; white-space: pre; min-height: 100%; tab-size: 2; }
.output-code:empty { display: none; }

/* Simple JSON token colors reused for output highlighting */
.tok-key { color: var(--brand-400); font-weight: 600; }
.tok-string { color: var(--success); }
.tok-number { color: var(--accent-cyan); }
.tok-boolean { color: var(--accent-pink); font-weight: 600; }
.tok-null { color: var(--text-muted); font-style: italic; }
.tok-punct { color: var(--text-secondary); }
.tok-brace { color: var(--accent-500); font-weight: 600; }
[data-theme="light"] .tok-string { color: #15803d; }
[data-theme="light"] .tok-number { color: #0e7490; }
[data-theme="light"] .tok-key { color: var(--brand-600); }

.output-empty {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: var(--space-3); pointer-events: none;
}
.output-empty button { pointer-events: auto; margin-top: var(--space-2); }
.output-empty p { margin: 0; }
.output-empty.is-hidden { display: none; }

/* ===================== Error panel ===================== */
.error-panel {
  margin-top: var(--space-5); border-color: var(--danger);
  background: linear-gradient(var(--danger-soft), var(--danger-soft)), var(--glass);
}
.error-head { display: flex; align-items: center; gap: var(--space-3); color: var(--danger); margin-bottom: var(--space-3); }
.error-head svg { width: 20px; height: 20px; flex: none; }
.error-head strong { font-size: 15px; }
.error-msg { margin: 0; color: var(--text); font-size: 13.5px; word-break: break-word; }

/* ===================== Stats bar ===================== */
.stats-bar { margin-top: var(--space-5); display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); padding: var(--space-5) var(--space-6); }
.stat { display: flex; flex-direction: column; gap: 4px; text-align: center; }
.stat-label { font-size: 11px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--text-muted); }
.stat-value { font-family: var(--font-mono); font-size: clamp(1rem, .85rem + .8vw, 1.35rem); font-weight: 700; letter-spacing: -.01em; }

/* ===================== Shortcuts modal table ===================== */
.shortcut-table { width: 100%; border-collapse: collapse; }
.shortcut-table td { padding: 10px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.shortcut-table tr:last-child td { border-bottom: none; }
.shortcut-table td:last-child { text-align: right; white-space: nowrap; }
.shortcut-table kbd + kbd { margin-left: 4px; }

/* ===================== Responsive ===================== */
@media (max-width: 860px) {
  .editor { grid-template-columns: 1fr; }
  .pane--input #input, .output-scroll { min-height: 300px; }
}
@media (max-width: 720px) {
  #statusBadge { display: none; }
  .toolbar .spacer { display: none; }
  .toolbar-group { width: 100%; }
  .toolbar-group .btn { flex: 1; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 460px) {
  .stats-bar { grid-template-columns: 1fr; text-align: left; }
  .stat { text-align: left; }
}