@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600&family=Source+Serif+4:opsz,wght@8..60,400;8..60,600&display=swap');

:root {
  --bg: #F5F6F3;
  --surface: #FFFFFF;
  --ink: #14171A;
  --ink-soft: #565B57;
  --border: #14171A;
  --border-soft: #D8DAD3;
  --accent: #2F5CFF;
  --accent-ink: #0E1E7A;
  --success: #1F8A57;
  --success-bg: #E7F5EC;
  --error: #D33A2C;
  --error-bg: #FBE9E7;
  --warn: #C77F00;
  --warn-bg: #FBF0DC;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 3px;
  --shadow: 0 2px 0 0 rgba(20,23,26,0.06);
}

* { box-sizing: border-box; }

html { -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button, input { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- HEADER ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.header-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 20px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.logo-block { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.logo-sub {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}
.privacy-note {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- MAIN ---------- */
.main {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

/* Rule strip — signature element */
.rule-strip {
  border: 1px solid var(--border);
  background: var(--ink);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}
.rule-strip-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  overflow-x: auto;
  white-space: nowrap;
}
.rule-before { color: #B7BCC4; }
.rule-arrow { color: var(--accent); font-weight: 700; flex-shrink: 0; }
.rule-after { color: #EAF0FF; }
.rule-break { color: var(--accent); margin-left: 4px; }

/* Dropzone */
.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 48px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
}
.dropzone:hover, .dropzone:focus-visible {
  border-color: var(--accent);
  background: #FAFBFF;
}
.dropzone.drag-over {
  border-color: var(--accent);
  border-style: solid;
  background: #F0F3FF;
}
.dropzone-content { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.dropzone-icon { color: var(--ink-soft); margin-bottom: 6px; }
.dropzone-title {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 16px;
  margin: 0;
}
.dropzone-or {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: 2px 0;
}
.dropzone-formats {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: 12px 0 0;
}

/* Buttons */
.btn {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: transform 80ms ease, background 100ms ease;
  min-height: 38px;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--ink);
  color: var(--surface);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-secondary {
  background: var(--surface);
  color: var(--ink);
}
.btn-secondary:hover { background: var(--bg); }
.btn-small {
  font-size: 11.5px;
  padding: 6px 10px;
  min-height: 30px;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

/* ---------- SECTIONS ---------- */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 32px 0 12px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin: 0;
}

.sort-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px solid var(--border-soft);
  padding: 3px 8px;
  border-radius: 2px;
}
.queue-head-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Queue */
.queue-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.queue-item {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.queue-item.is-success { border-color: var(--success); }
.queue-item.is-error { border-color: var(--error); }

.queue-row1 {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.queue-file-info { min-width: 0; }
.queue-filename {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 13.5px;
  word-break: break-all;
  display: block;
}
.queue-file-meta {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 2px;
}
.status-badge {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.status-waiting { background: var(--bg); color: var(--ink-soft); border: 1px solid var(--border-soft); }
.status-processing { background: var(--warn-bg); color: var(--warn); }
.status-success { background: var(--success-bg); color: var(--success); }
.status-error { background: var(--error-bg); color: var(--error); }

.progress-track {
  height: 6px;
  background: var(--bg);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 12px;
  border: 1px solid var(--border-soft);
}
.progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 200ms ease;
}
.queue-item.is-success .progress-fill { background: var(--success); }
.queue-item.is-error .progress-fill { background: var(--error); }

.queue-row2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  gap: 8px;
  flex-wrap: wrap;
}
.queue-progress-label {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
}
.queue-error-msg {
  font-size: 12px;
  color: var(--error);
}
.queue-actions { display: flex; gap: 8px; }

/* Translate settings panel */
.translate-panel {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--surface);
  margin-bottom: 20px;
}
.translate-panel summary {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
}
.translate-panel summary::-webkit-details-marker { display: none; }
.translate-panel summary::before {
  content: '▸ ';
  color: var(--accent);
}
.translate-panel[open] summary::before { content: '▾ '; }
.translate-body {
  padding: 4px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px solid var(--border-soft);
}
.translate-enable-row, .translate-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
}
.translate-enable-row input, .translate-radio input { accent-color: var(--accent); cursor: pointer; }
.translate-mode-row { display: flex; gap: 18px; flex-wrap: wrap; }
.translate-field { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 160px; }
.translate-field label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}
.translate-field input, .translate-field select {
  font-family: var(--sans);
  font-size: 13.5px;
  padding: 8px 10px;
  border: 1.5px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
}
.translate-field input:focus, .translate-field select:focus { border-color: var(--accent); }
.translate-field-row { display: flex; gap: 14px; flex-wrap: wrap; }
.translate-note {
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0;
}
.translate-badge {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 2px;
  background: var(--accent);
  color: #fff;
}

/* Preview */
.preview-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
}
.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.preview-filename {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
}
.preview-actions { display: flex; gap: 8px; }
.view-toggle {
  display: inline-flex;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.view-toggle-btn {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  padding: 7px 12px;
  border: none;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
}
.view-toggle-btn + .view-toggle-btn { border-left: 1.5px solid var(--border); }
.view-toggle-btn.is-active { background: var(--ink); color: var(--surface); }

/* Noise review panel */
.noise-panel {
  border: 1px solid var(--warn);
  background: var(--warn-bg);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 14px;
}
.noise-panel-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 8px;
}
.noise-panel-title {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12.5px;
  color: var(--warn);
}
.noise-panel-sub {
  font-size: 12px;
  color: var(--ink-soft);
}
.noise-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 260px;
  overflow-y: auto;
}
.noise-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 2px;
  padding: 8px 10px;
}
.noise-item input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--warn);
  cursor: pointer;
  flex-shrink: 0;
}
.noise-item-body { min-width: 0; }
.noise-type-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 2px;
  background: var(--bg);
  color: var(--ink-soft);
  border: 1px solid var(--border-soft);
  display: inline-block;
  margin-bottom: 4px;
}
.noise-item-text {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  word-break: break-word;
}

/* Diff panes */
.preview-panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.pane { min-width: 0; }
.pane-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.pane-box {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 14px;
  max-height: 420px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  margin: 0;
}
.pane-box.is-empty {
  color: var(--ink-soft);
  font-size: 12.5px;
}
del.noise-strike {
  color: var(--error);
  background: var(--error-bg);
  text-decoration: line-through;
  text-decoration-color: var(--error);
}
mark.noise-kept {
  background: #FFF3C4;
  color: var(--ink);
  padding: 0 2px;
}

/* Reading mode */
.reading-mode {
  background: #FBFAF6;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 8px;
}
.reading-page {
  max-width: 620px;
  margin: 0 auto;
  padding: 36px 28px;
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 17px;
  line-height: 1.85;
  color: #22231F;
  max-height: 560px;
  overflow-y: auto;
}
.reading-page p { margin: 0 0 1.4em; }
.reading-page p.is-heading {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 2.2em;
}
.preview-limit-note {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  margin-top: 10px;
}

@media (max-width: 700px) {
  .preview-panes { grid-template-columns: 1fr; }
}

/* Live process console */
.console-controls {
  display: flex;
  align-items: center;
  gap: 14px;
}
.console-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
}
.console-toggle input { accent-color: var(--accent); cursor: pointer; }
.console-log {
  background: var(--ink);
  color: #D7DCE2;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 0;
  max-height: 260px;
  overflow-y: auto;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}
.console-log:empty::before {
  content: 'Waiting for activity…';
  color: #6A7078;
}
.log-line { display: block; }
.log-time { color: #6A7078; }
.log-name { color: #8FB2FF; }
.log-msg { color: #D7DCE2; }
.log-line.is-success .log-msg { color: #6FD69A; }
.log-line.is-error .log-msg { color: #F0897E; }
.log-line.is-error .log-msg::before { content: '✕ '; }
.log-line.is-success .log-msg::before { content: '✓ '; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 20px;
  text-align: center;
}
.site-footer p {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  margin: 0;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--ink);
  color: var(--surface);
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 50;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 560px) {
  .dropzone { padding: 36px 14px; }
  .queue-row1 { flex-direction: column; }
  .status-badge { align-self: flex-start; }
  .btn { flex: 1; }
  .queue-actions { width: 100%; }
  .preview-actions .btn { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}