/* ═══════════════════════════════════════════════════════════════
   CSV ↔ JSON — premium local converter
   ═══════════════════════════════════════════════════════════════ */

:root {
  --font-sans: "Outfit", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", monospace;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 180ms;

  color-scheme: dark;
  --bg-0: #06080f;
  --bg-1: #0e1420;
  --bg-2: #141b2a;
  --bg-3: #1a2438;
  --bg-elev: rgba(20, 28, 44, 0.82);
  --bg-glass: rgba(10, 16, 28, 0.72);
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.28);
  --text: #f1f5fb;
  --text-2: #a8b6cc;
  --text-3: #73839c;
  --accent: #5eead4;
  --accent-2: #38bdf8;
  --accent-soft: rgba(94, 234, 212, 0.14);
  --accent-soft-2: rgba(56, 189, 248, 0.14);
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.14);
  --ok: #4ade80;
  --ok-soft: rgba(74, 222, 128, 0.14);
  --warn: #fbbf24;
  --editor-bg: #090e18;
  --chip-bg: rgba(255, 255, 255, 0.05);
  --scrollbar: rgba(148, 163, 184, 0.28);
  --grid-line: rgba(148, 163, 184, 0.055);
  --shadow-sm:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 8px 28px rgba(0, 0, 0, 0.42),
    0 22px 48px rgba(0, 0, 0, 0.28);
  --shadow-glow:
    0 0 0 1px rgba(94, 234, 212, 0.14),
    0 12px 40px rgba(56, 189, 248, 0.1),
    0 0 64px rgba(94, 234, 212, 0.05);
  --topbar-h: 64px;
  --status-h: 36px;
  --options-w: 300px;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg-0: #eef3f9;
  --bg-1: #ffffff;
  --bg-2: #f1f5f9;
  --bg-3: #e2e8f0;
  --bg-elev: rgba(255, 255, 255, 0.92);
  --bg-glass: rgba(255, 255, 255, 0.78);
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: rgba(15, 23, 42, 0.16);
  --text: #0b1220;
  --text-2: #334155;
  --text-3: #64748b;
  --accent: #0f766e;
  --accent-2: #0369a1;
  --accent-soft: rgba(15, 118, 110, 0.1);
  --accent-soft-2: rgba(3, 105, 161, 0.1);
  --danger: #e11d48;
  --danger-soft: rgba(225, 29, 72, 0.1);
  --ok: #16a34a;
  --ok-soft: rgba(22, 163, 74, 0.1);
  --warn: #d97706;
  --editor-bg: #fbfcfe;
  --chip-bg: rgba(15, 23, 42, 0.04);
  --scrollbar: rgba(100, 116, 139, 0.35);
  --grid-line: rgba(15, 23, 42, 0.045);
  --shadow-sm:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 1px 2px rgba(15, 23, 42, 0.05),
    0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 1px 2px rgba(15, 23, 42, 0.04),
    0 8px 20px rgba(15, 23, 42, 0.06),
    0 20px 40px rgba(15, 23, 42, 0.05);
  --shadow-glow:
    0 0 0 1px rgba(15, 118, 110, 0.12),
    0 12px 36px rgba(2, 132, 199, 0.08),
    0 24px 48px rgba(15, 23, 42, 0.06);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-0);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── Layout ─── */

.app {
  position: relative;
  display: grid;
  grid-template-columns: var(--options-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr var(--status-h);
  grid-template-areas:
    "topbar topbar"
    "options workspace"
    "status status";
  height: 100vh;
  height: 100dvh;
  isolation: isolate;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background:
    radial-gradient(1000px 540px at 10% -8%, rgba(94, 234, 212, 0.16), transparent 55%),
    radial-gradient(900px 500px at 92% 0%, rgba(56, 189, 248, 0.14), transparent 52%),
    radial-gradient(700px 420px at 50% 110%, rgba(167, 139, 250, 0.1), transparent 50%),
    radial-gradient(600px 360px at 70% 40%, rgba(94, 234, 212, 0.04), transparent 45%),
    linear-gradient(180deg, #0a0e18 0%, #06080f 50%, #05070d 100%);
}

html[data-theme="light"] .bg-glow {
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(15, 118, 110, 0.12), transparent 55%),
    radial-gradient(900px 480px at 92% 0%, rgba(3, 105, 161, 0.08), transparent 52%),
    radial-gradient(700px 400px at 50% 110%, rgba(109, 40, 217, 0.05), transparent 50%),
    linear-gradient(180deg, #f7f9fc 0%, #eef3f9 45%, #e8eef6 100%);
}

html[data-theme="light"] .topbar {
  background: rgba(255, 255, 255, 0.78);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 8px 24px rgba(15, 23, 42, 0.045);
}

html[data-theme="dark"] .topbar {
  background: rgba(10, 16, 28, 0.78);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 8px 28px rgba(0, 0, 0, 0.35);
}

html[data-theme="light"] .options,
html[data-theme="light"] .workspace,
html[data-theme="light"] .status {
  box-shadow: var(--shadow-sm);
}

html[data-theme="dark"] .options,
html[data-theme="dark"] .workspace,
html[data-theme="dark"] .status {
  box-shadow: var(--shadow-sm);
}

html[data-theme="light"] .icon-btn,
html[data-theme="light"] .mode-btn {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 2px 8px rgba(15, 23, 42, 0.04);
}

html[data-theme="dark"] .icon-btn,
html[data-theme="dark"] .mode-btn {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 2px 10px rgba(0, 0, 0, 0.28);
}

html[data-theme="light"] .btn-primary:hover {
  background: var(--accent) !important;
  color: #ffffff !important;
  border-color: var(--accent) !important;
}

html[data-theme="dark"] .btn-primary:hover {
  background: var(--accent) !important;
  color: #0b0f19 !important;
  border-color: var(--accent) !important;
  box-shadow: 0 4px 18px rgba(94, 234, 212, 0.28) !important;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black, transparent);
}

/* ─── Topbar ─── */

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-glass);
  backdrop-filter: blur(16px) saturate(1.2);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 180px;
}

.brand-mark {
  display: grid;
  place-items: center;
  filter: drop-shadow(0 4px 12px rgba(94, 234, 212, 0.25));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-tag {
  font-size: 0.72rem;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.mode-switch {
  display: inline-flex;
  padding: 4px;
  gap: 4px;
  border-radius: 999px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  margin: 0 auto;
}

.mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 550;
  font-size: 0.9rem;
  color: var(--text-2);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.mode-btn:hover {
  color: var(--text);
}

.mode-btn.is-active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061018;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.25);
}

html[data-theme="light"] .mode-btn.is-active {
  color: #fff;
}

.mode-arrow {
  opacity: 0.7;
  font-weight: 400;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* ─── Language switcher (flags) ─── */

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid transparent;
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  transition: all var(--dur) var(--ease);
}

.lang-btn:hover {
  color: var(--text);
  background: var(--bg-3);
}

.lang-btn.is-active {
  color: var(--text);
  background: var(--bg-1);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.lang-code {
  font-family: var(--font-mono);
}

.flag-svg {
  flex-shrink: 0;
  width: 20px;
  height: 13px;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18);
  display: block;
  overflow: hidden;
}

.offline-pill {
  position: fixed;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--warn) 40%, var(--border));
  background: var(--bg-1);
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  text-align: center;
}

.offline-pill[hidden] {
  display: none !important;
}

.offline-pill strong {
  color: var(--warn);
}

/* ─── Buttons ─── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  font-weight: 550;
  font-size: 0.9rem;
  border: 1px solid transparent;
  transition: transform 120ms var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061018;
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.22);
}

html[data-theme="light"] .btn-primary {
  color: #fff;
}

.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(56, 189, 248, 0.32);
  filter: brightness(1.05);
}

.btn-ghost {
  background: var(--chip-bg);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  background: var(--bg-3);
}

.icon-btn {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
  transition: color var(--dur), border-color var(--dur), background var(--dur);
}

.icon-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

/* Default light: show sun (click → dark). Dark theme: show moon. */
html[data-theme="dark"] .icon-sun {
  display: none;
}
html[data-theme="light"] .icon-moon,
html:not([data-theme]) .icon-moon {
  display: none;
}
html[data-theme="light"] .icon-sun,
html:not([data-theme]) .icon-sun {
  display: block;
}

.kbd {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(0, 0, 0, 0.12);
  opacity: 0.85;
}

html[data-theme="light"] .kbd {
  background: rgba(255, 255, 255, 0.25);
}

/* ─── Options panel ─── */

.options-panel {
  grid-area: options;
  overflow: auto;
  padding: 16px 14px 20px;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-1) 88%, transparent);
  backdrop-filter: blur(10px);
}

.options-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding: 0 4px;
}

.options-head h2 {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  font-weight: 600;
}

.text-btn {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 550;
  padding: 4px 6px;
  border-radius: 6px;
}

.text-btn:hover {
  background: var(--accent-soft);
}

.opt-group {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
}

.opt-group[hidden] {
  display: none !important;
}

.opt-group h3 {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: 0.01em;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  min-width: 40px;
  height: 32px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--dur) var(--ease);
}

.chip:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.chip.is-active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent);
}

.field {
  width: 100%;
  margin-top: 8px;
  height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--editor-bg);
  outline: none;
  transition: border-color var(--dur);
}

.field:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.field-sm {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.toggle {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 4px;
  cursor: pointer;
  border-radius: 8px;
  transition: background var(--dur);
}

.toggle:hover {
  background: var(--chip-bg);
}

.toggle + .toggle {
  border-top: 1px solid var(--border);
}

.toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle-ui {
  flex-shrink: 0;
  width: 36px;
  height: 20px;
  margin-top: 2px;
  border-radius: 999px;
  background: var(--bg-3);
  border: 1px solid var(--border-strong);
  position: relative;
  transition: background var(--dur) var(--ease), border-color var(--dur);
}

.toggle-ui::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-2);
  transition: transform var(--dur) var(--ease), background var(--dur);
}

.toggle input:checked + .toggle-ui {
  background: color-mix(in srgb, var(--accent) 35%, var(--bg-3));
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
}

.toggle input:checked + .toggle-ui::after {
  transform: translateX(16px);
  background: var(--accent);
}

.toggle-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.toggle-label strong {
  font-size: 0.86rem;
  font-weight: 550;
  color: var(--text);
}

.toggle-label small {
  font-size: 0.74rem;
  color: var(--text-3);
  line-height: 1.35;
}

.seg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.seg-btn {
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
  font-size: 0.78rem;
  font-weight: 500;
  transition: all var(--dur) var(--ease);
}

.seg-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.seg-btn.is-active {
  background: var(--accent-soft-2);
  border-color: color-mix(in srgb, var(--accent-2) 45%, transparent);
  color: var(--accent-2);
}

.opt-hint {
  margin: 10px 2px 0;
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--text-3);
}

.opt-hint strong {
  color: var(--text-2);
  font-weight: 600;
}

.privacy-card {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--ok) 25%, var(--border));
  background: linear-gradient(145deg, var(--ok-soft), transparent 70%);
}

.privacy-icon {
  font-size: 1.1rem;
  line-height: 1;
}

.privacy-card strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.privacy-card p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-3);
  line-height: 1.4;
}

/* ─── Workspace ─── */

.workspace {
  grid-area: workspace;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 8px minmax(240px, 1fr);
  min-height: 0;
  min-width: 0;
  padding: 12px;
  gap: 0;
}

.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.pane-input {
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}

.pane-output {
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
}

.pane-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-2) 70%, transparent);
  flex-wrap: wrap;
}

.pane-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.pane-title h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.pane-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}

.pane-badge-out {
  background: var(--accent-soft-2);
  color: var(--accent-2);
  border-color: color-mix(in srgb, var(--accent-2) 30%, transparent);
}

.stat {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  white-space: nowrap;
}

.pane-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.tool-btn {
  height: 30px;
  padding: 0 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
  font-size: 0.78rem;
  font-weight: 500;
  transition: all var(--dur) var(--ease);
}

.tool-btn:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--bg-3);
}

.tool-primary {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--accent);
}

.tool-primary:hover {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  color: var(--accent);
}

.tool-danger:hover {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 40%, transparent);
  color: var(--danger);
}

.tool-file {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.view-toggle {
  display: inline-flex;
  padding: 2px;
  gap: 2px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-2);
}

.view-btn {
  height: 26px;
  padding: 0 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 550;
  color: var(--text-3);
  transition: all var(--dur) var(--ease);
}

.view-btn.is-active {
  background: var(--bg-1);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.editor-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.editor {
  flex: 1;
  width: 100%;
  height: 100%;
  resize: none;
  border: none;
  outline: none;
  padding: 14px 16px;
  background: var(--editor-bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.55;
  tab-size: 2;
}

.editor::placeholder {
  color: var(--text-3);
}

.editor-out {
  color: color-mix(in srgb, var(--text) 92%, var(--accent));
}

.drop-overlay {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  background: color-mix(in srgb, var(--bg-0) 55%, transparent);
  backdrop-filter: blur(4px);
  z-index: 5;
  border: 2px dashed color-mix(in srgb, var(--accent) 55%, transparent);
  border-radius: 0 0 0 0;
}

.editor-wrap.is-dragging .drop-overlay {
  display: grid;
}

.drop-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 28px 36px;
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  box-shadow: var(--shadow);
}

.drop-card strong {
  font-size: 1.05rem;
}

.drop-card span {
  font-size: 0.82rem;
  color: var(--text-3);
}

.pane-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-2) 60%, transparent);
  font-size: 0.75rem;
  color: var(--text-3);
  min-height: 34px;
}

.error-text {
  color: var(--danger);
  font-weight: 500;
}

.muted {
  color: var(--text-3);
}

/* ─── Table view ─── */

.table-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--editor-bg);
  position: relative;
}

.table-scroll {
  flex: 1;
  overflow: auto;
}

#result-table {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

#result-table th,
#result-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}

#result-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--bg-2);
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
}

#result-table tbody tr:hover td {
  background: var(--accent-soft);
}

#result-table td.nullish {
  color: var(--text-3);
  font-style: italic;
}

#result-table td.num {
  color: #a5b4fc;
}

#result-table td.bool {
  color: #fcd34d;
}

html[data-theme="light"] #result-table td.num {
  color: #4f46e5;
}

html[data-theme="light"] #result-table td.bool {
  color: #b45309;
}

.table-empty {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  color: var(--text-3);
  font-size: 0.9rem;
}

.table-view.is-empty .table-empty {
  display: grid;
}

.table-view.is-empty .table-scroll {
  display: none;
}

/* ─── Divider ─── */

.divider {
  width: 8px;
  margin: 0 -1px;
  cursor: col-resize;
  position: relative;
  z-index: 5;
  touch-action: none;
}

.divider::after {
  content: "";
  position: absolute;
  top: 20%;
  bottom: 20%;
  left: 50%;
  width: 3px;
  transform: translateX(-50%);
  border-radius: 99px;
  background: var(--border-strong);
  transition: background var(--dur), box-shadow var(--dur);
}

.divider:hover::after,
.divider:focus-visible::after,
body.is-resizing .divider::after {
  background: var(--accent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 50%, transparent);
}

body.is-resizing {
  cursor: col-resize;
  user-select: none;
}

body.is-resizing * {
  cursor: col-resize !important;
}

/* ─── Status bar ─── */

.status-bar {
  grid-area: status;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  font-size: 0.75rem;
  color: var(--text-3);
}

.status-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  justify-self: start;
}

.status-credit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--text-3);
  white-space: nowrap;
  max-width: 100%;
}

.credit-sep {
  opacity: 0.45;
  user-select: none;
}

.credit-year {
  color: inherit;
}

.credit-mail {
  font: inherit;
  font-size: inherit;
  font-weight: 650;
  color: var(--accent);
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur), filter var(--dur);
}

.credit-mail:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
  filter: brightness(1.08);
}
.credit-link:hover {
  color: var(--text-2);
  border-bottom-color: color-mix(in srgb, var(--text-3) 50%, transparent);
}

.credit-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur), border-color var(--dur);
}

.status-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  flex-shrink: 0;
  justify-self: end;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px color-mix(in srgb, var(--ok) 60%, transparent);
}

.status-dot.is-error {
  background: var(--danger);
  box-shadow: 0 0 8px color-mix(in srgb, var(--danger) 60%, transparent);
}

.status-dot.is-busy {
  background: var(--warn);
  box-shadow: 0 0 8px color-mix(in srgb, var(--warn) 60%, transparent);
  animation: pulse 1s ease infinite;
}

@keyframes pulse {
  50% { opacity: 0.45; }
}

.hint kbd {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 1px 5px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-2);
}

/* ─── Large file + progress ─── */

.large-file-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 12px 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--accent-2) 35%, var(--border));
  background: linear-gradient(135deg, var(--accent-soft-2), var(--accent-soft));
  flex-shrink: 0;
}

.large-file-banner[hidden] {
  display: none !important;
}

.lfb-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.lfb-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lfb-body strong {
  font-size: 0.88rem;
}

.lfb-body span {
  font-size: 0.75rem;
  color: var(--text-2);
  line-height: 1.35;
}

.progress-panel {
  flex-shrink: 0;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-2) 80%, var(--accent-soft));
}

.progress-panel[hidden] {
  display: none !important;
}

.progress-top,
.progress-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.progress-top {
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 600;
}

#progress-pct {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.8rem;
}

.progress-track {
  height: 6px;
  border-radius: 99px;
  background: var(--bg-3);
  overflow: hidden;
  border: 1px solid var(--border);
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 50%, transparent);
  transition: width 160ms var(--ease);
}

.progress-bottom {
  margin-top: 8px;
  font-size: 0.75rem;
  color: var(--text-3);
}

.output-truncated-banner {
  flex-shrink: 0;
  padding: 8px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 10%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--warn) 25%, var(--border));
}

.output-truncated-banner[hidden] {
  display: none !important;
}

/* ─── Health report ─── */

.health-panel {
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-2) 85%, transparent);
  max-height: 42%;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.health-panel[hidden] {
  display: none !important;
}

.health-panel.is-ok {
  border-bottom-color: color-mix(in srgb, var(--ok) 35%, var(--border));
}

.health-panel.is-warn {
  border-bottom-color: color-mix(in srgb, var(--warn) 40%, var(--border));
}

.health-panel.is-error {
  border-bottom-color: color-mix(in srgb, var(--danger) 45%, var(--border));
}

.health-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px 14px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: background var(--dur);
}

.health-summary:hover {
  background: var(--chip-bg);
}

.health-score-wrap {
  flex-shrink: 0;
}

.health-score {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  padding: 0 6px;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-weight: 650;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  background: var(--bg-1);
}

.health-panel.is-ok .health-score {
  color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 40%, transparent);
  background: var(--ok-soft);
}

.health-panel.is-warn .health-score {
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 45%, transparent);
  background: color-mix(in srgb, var(--warn) 12%, transparent);
}

.health-panel.is-error .health-score {
  color: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 45%, transparent);
  background: var(--danger-soft);
}

.health-summary-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.health-summary-text strong {
  font-size: 0.88rem;
  font-weight: 600;
}

.health-summary-text span {
  font-size: 0.78rem;
  color: var(--text-2);
  line-height: 1.35;
}

.health-chevron {
  color: var(--text-3);
  font-size: 0.85rem;
  transition: transform var(--dur) var(--ease);
}

.health-panel.is-collapsed .health-chevron {
  transform: rotate(-90deg);
}

.health-panel.is-collapsed .health-body {
  display: none;
}

.health-body {
  padding: 0 14px 12px;
  overflow: auto;
  min-height: 0;
}

.health-list {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.health-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 10px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-1);
  font-size: 0.8rem;
  line-height: 1.4;
}

.health-item .hi-badge {
  grid-row: 1 / span 2;
  align-self: start;
  margin-top: 2px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-3);
}

.health-item.level-ok .hi-badge {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: color-mix(in srgb, var(--ok) 30%, transparent);
}

.health-item.level-warn .hi-badge {
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 12%, transparent);
  border-color: color-mix(in srgb, var(--warn) 35%, transparent);
}

.health-item.level-error .hi-badge {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 35%, transparent);
}

.health-item.level-info .hi-badge {
  color: var(--accent-2);
  background: var(--accent-soft-2);
  border-color: color-mix(in srgb, var(--accent-2) 30%, transparent);
}

.health-item .hi-title {
  font-weight: 600;
  color: var(--text);
}

.health-item .hi-detail {
  grid-column: 2;
  color: var(--text-2);
  font-size: 0.76rem;
}

.health-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.health-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--text-3);
}

body.is-converting .btn-primary {
  opacity: 0.7;
  pointer-events: none;
}

/* ─── Toast ─── */

.toast-host {
  position: fixed;
  bottom: 52px;
  right: 18px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 220px;
  max-width: 360px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-1);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  font-weight: 500;
  animation: toast-in 280ms var(--ease);
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.is-out {
  animation: toast-out 220ms var(--ease) forwards;
}

.toast.ok {
  border-color: color-mix(in srgb, var(--ok) 40%, var(--border));
}

.toast.err {
  border-color: color-mix(in srgb, var(--danger) 40%, var(--border));
}

.toast-icon {
  flex-shrink: 0;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes toast-out {
  to {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
}

/* ─── Scrollbars ─── */

.editor::-webkit-scrollbar,
.table-scroll::-webkit-scrollbar,
.options-panel::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.editor::-webkit-scrollbar-thumb,
.table-scroll::-webkit-scrollbar-thumb,
.options-panel::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
  border-radius: 99px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* ─── Responsive ─── */

/* Mobile options gear — desktop hidden */
.options-mobile-toggle {
  display: none;
}

/* ═══════════════════════════════════════════════════════════════
   Tablet + mobile
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1100px) {
  body {
    overflow: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .app {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100vh;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    flex-wrap: wrap;
    height: auto;
    min-height: 0;
    gap: 8px 10px;
    padding: 10px 12px;
    padding-top: max(10px, env(safe-area-inset-top));
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
  }

  .brand {
    min-width: 0;
    flex: 1 1 auto;
  }

  .brand-tag {
    display: none;
  }

  .mode-switch {
    order: 3;
    flex: 1 1 100%;
    margin: 0;
    justify-content: stretch;
  }

  .mode-btn {
    flex: 1;
    justify-content: center;
    padding: 10px 12px;
    min-height: 44px;
  }

  .topbar-actions {
    margin-left: 0;
    flex: 0 1 auto;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 6px;
  }

  .options-mobile-toggle {
    display: grid;
  }

  .btn .kbd {
    display: none;
  }

  /* Settings drawer */
  .options-panel {
    display: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: min(52dvh, 420px);
    overflow: auto;
    padding: 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    -webkit-overflow-scrolling: touch;
    background: var(--bg-1);
  }

  body.options-open .options-panel {
    display: block;
  }

  body.options-open .options-mobile-toggle {
    border-color: color-mix(in srgb, var(--accent) 45%, transparent);
    background: var(--accent-soft);
    color: var(--accent);
  }

  .options-head {
    display: flex;
    position: sticky;
    top: 0;
    background: var(--bg-1);
    z-index: 1;
    padding-bottom: 8px;
  }

  .opt-group {
    min-width: 0;
    margin-bottom: 10px;
  }

  .privacy-card {
    display: flex;
  }

  .workspace {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    padding: 10px;
    padding-left: max(10px, env(safe-area-inset-left));
    padding-right: max(10px, env(safe-area-inset-right));
    gap: 10px;
  }

  .divider {
    display: none;
  }

  .pane {
    min-height: 280px;
    flex: 1 1 42vh;
    border-radius: var(--radius-lg) !important;
  }

  .pane-input {
    min-height: min(38vh, 360px);
  }

  .pane-output {
    min-height: min(48vh, 480px);
    flex: 1 1 50vh;
  }

  .pane-toolbar {
    gap: 8px;
    padding: 8px 10px;
  }

  .pane-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .tool-btn,
  .view-btn {
    min-height: 36px;
    padding: 0 12px;
  }

  .editor {
    font-size: 16px; /* prevents iOS zoom on focus */
    padding: 12px;
  }

  .status-bar {
    position: sticky;
    bottom: 0;
    z-index: 30;
    flex-shrink: 0;
    min-height: var(--status-h);
    padding: 8px 12px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
  }

  .status-credit {
    justify-self: end;
    gap: 6px;
    font-size: 0.7rem;
  }

  .status-left #status-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hint {
    display: none;
  }

  .toast-host {
    bottom: max(56px, calc(env(safe-area-inset-bottom) + 48px));
    right: 12px;
    left: 12px;
    align-items: stretch;
  }

  .toast {
    max-width: none;
    min-width: 0;
  }

  .large-file-banner {
    flex-wrap: wrap;
    margin: 8px;
    padding: 10px 12px;
  }

  .health-panel {
    max-height: 40%;
  }

  .offline-pill {
    top: max(72px, calc(env(safe-area-inset-top) + 56px));
    left: 12px;
    right: 12px;
    transform: none;
    width: auto;
  }
}

/* Phone */
@media (max-width: 640px) {
  .brand-name {
    font-size: 0.95rem;
  }

  .brand {
    gap: 8px;
  }

  .topbar-actions .btn-ghost {
    padding: 0 10px;
    height: 36px;
    font-size: 0.82rem;
  }

  .topbar-actions .btn-primary {
    padding: 0 12px;
    height: 36px;
    font-size: 0.85rem;
  }

  /* Sample: icon-only feel if very tight */
  .lang-btn .lang-code {
    display: none;
  }

  .lang-btn {
    padding: 0 8px;
    min-width: 40px;
    justify-content: center;
  }

  .mode-btn {
    font-size: 0.82rem;
    gap: 6px;
    padding: 8px 10px;
  }

  .pane {
    min-height: 240px;
  }

  .pane-input {
    min-height: 32vh;
  }

  .pane-output {
    min-height: 42vh;
  }

  .pane-title h2 {
    font-size: 0.88rem;
  }

  .stat {
    display: none;
  }

  .seg {
    grid-template-columns: 1fr 1fr;
  }

  .chip-row {
    gap: 8px;
  }

  .chip {
    min-height: 36px;
  }

  .toggle {
    padding: 10px 4px;
  }

  .status-bar {
    font-size: 0.7rem;
  }

  #status-text {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* Tablet landscape: keep side-by-side editors if wide enough */
@media (min-width: 768px) and (max-width: 1100px) and (orientation: landscape) {
  .workspace {
    display: grid;
    grid-template-columns: 1fr 8px 1fr;
    grid-template-rows: 1fr;
    min-height: 60vh;
  }

  .divider {
    display: block;
    width: 8px;
    height: auto;
    cursor: col-resize;
  }

  .divider::after {
    top: 20%;
    bottom: 20%;
    left: 50%;
    right: auto;
    width: 3px;
    height: auto;
    transform: translateX(-50%);
  }

  .pane {
    min-height: 0;
    height: 100%;
    flex: none;
  }

  .pane-input,
  .pane-output {
    min-height: 0;
  }
}

/* Focus visibility */
:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 2px;
}

.editor:focus-visible {
  outline: none;
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}