:root {
  --bg: #050b1a;
  --panel: #0d1529;
  --panel-strong: #101b35;
  --border: #1b2741;
  --text: #e9ecf5;
  --muted: #9fb1cc;
  --accent: #f97316;
  --accent-2: #38bdf8;
  --radius: 16px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, 'Menlo', monospace;
}

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

.hidden { display: none !important; }

body {
  margin: 0;
  color: var(--text);
  font-family: 'Sora', 'Inter', system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(130% 120% at 20% 10%, rgba(56, 189, 248, 0.18), transparent),
    radial-gradient(120% 110% at 80% 0%, rgba(249, 115, 22, 0.16), transparent),
    var(--bg);
}

.btn {
  border: 1px solid transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0a0f1c;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 16px 40px rgba(249, 115, 22, 0.25);
}

.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn:active { transform: translateY(0); filter: brightness(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn.btn-clean {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--border);
  box-shadow: none;
  filter: none;
  transform: none;
}

.btn.btn-clean:hover {
  border-color: var(--accent-2);
  color: #dff4ff;
  transform: translateY(-1px);
}

.btn.btn-clean:active {
  transform: translateY(0);
}

.btn.btn-clean.primary {
  border-color: var(--accent);
  color: #ffe7d5;
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
  box-shadow: none;
}

.file-btn {
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(56, 189, 248, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-btn.btn-clean {
  box-shadow: none;
}

.file-btn input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.status {
  font-family: var(--mono);
  font-size: 13px;
  color: #9de2ff;
  opacity: 0.9;
}

.status[data-tone="warn"] { color: #fca5a5; }
.status[data-tone="success"] { color: #b3f2c9; }
.status.inline { margin-top: 6px; }

.shell {
  max-width: 1600px;
  margin: 12px auto 32px;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid.two { grid-template-columns: 1.2fr 1.2fr; }
.grid.three { grid-template-columns: 1.2fr 1.2fr 0.9fr; align-items: start; }
.grid.one { grid-template-columns: 1fr; }
.span-two { grid-column: 1 / span 2; }
.grid.tall > .panel:first-child { min-height: 380px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.panel__header h2 { margin: 4px 0 0; }
.panel__actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.panel__actions.actions-wide { gap: 10px; }
.sidebar .panel__header { margin-bottom: 6px; }
.sidebar-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  grid-column: 3;
  grid-row: 1 / span 2;
}
.sidebar__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sidebar__body .btn,
.sidebar__body .toggle { width: 100%; justify-content: center; }
.sidebar__body .toggle { justify-content: flex-start; }
.sidebar__body .status { margin-top: 4px; }
.sidebar__body .row.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.sidebar__section { margin-top: 6px; }
.sidebar__section-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.sidebar__section-header .panel__actions { gap: 6px; }
.field-actions { justify-content: flex-start; gap: 8px; padding: 6px 0; }
.settings-panel {
  display: flex;
  flex-direction: column;
}
.settings-panel .options-grid {
  flex: 1;
  min-height: 0;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 6px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  color: var(--muted);
  margin: 0;
}

textarea,
.log {
  width: 100%;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
}

textarea {
  padding: 12px;
  min-height: 520px;
  resize: none;
  white-space: pre;
  overflow: auto;
  word-break: normal;
  border: none;
  background: transparent;
  color: var(--text);
  caret-color: var(--text);
  position: relative;
  z-index: 3;
  width: 100%;
  height: 100%;
}

/* Use overlays for both input/output so we can color changed entries without text overlap */
#output,
#input {
  color: transparent;
  caret-color: var(--text);
}
#output-highlight,
#input-highlight {
  display: block;
}

.bar {
  margin-top: 8px;
  padding: 9px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 13px;
}

.log {
  min-height: 520px;
  max-height: 520px;
  padding: 12px;
  white-space: pre-wrap;
  overflow: auto;
}

.diff-panel { margin-top: 12px; }

.diff-view {
  width: 100%;
  min-height: 501px;
  max-height: 501px;
  padding: 12px;
  margin: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  overflow: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  white-space: pre;
}

.diff-line { white-space: pre; }
.diff-meta { color: var(--muted); }
.diff-hunk { color: var(--muted); }
.diff-add { color: #34d399; }
.diff-del { color: #f87171; }

.code-wrap {
  position: relative;
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-height: 520px;
  overflow: hidden;
}

.highlight-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: hidden;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
}

.highlight-layer pre {
  margin: 0;
  padding: 12px;
  white-space: pre;
  color: var(--text);
}

.highlight-layer .normal { color: var(--text); }
.highlight-layer .colon-warn { color: #f87171; }
.pre-guard { display: none; }
.highlight-layer .changed-text {
  color: var(--accent-2);
  background: transparent;
}
.highlight-layer .changed-text.input {
  color: #facc15;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text);
}

.toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.toggle.toggle-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
}

.toggle.toggle-note input {
  width: 16px;
  height: 16px;
}

.options-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.option {
  padding: 10px 0;
  border-top: 1px solid var(--border);
}
.option:first-of-type { border-top: none; }

.label { margin: 0 0 6px; color: var(--muted); font-size: 13px; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chips.compact label {
  padding: 6px 8px;
  font-size: 12px;
}

.chips label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  font-size: 13px;
}

.chips input { accent-color: var(--accent); }

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}

.field-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  font-size: 13px;
  cursor: pointer;
}

.field-grid input { accent-color: var(--accent); }

.note {
  margin: 8px 0 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 3.1;
}
.note .red { color: #f87171; }
.hint {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.icon-btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 22px;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
}
.modal.hidden { display: none; }
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 17, 0.72);
  backdrop-filter: blur(6px);
}
.modal__dialog {
  position: relative;
  width: min(760px, calc(100% - 32px));
  max-height: min(70vh, 680px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 1;
}
.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.modal__body {
  overflow: auto;
  padding-right: 4px;
}
.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Make merge modal buttons match global styles */
#merge-apply {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
  filter: none;
}
#merge-apply:hover { transform: translateY(-1px); border-color: var(--accent-2); }
#merge-apply:active { transform: translateY(0); }
#merge-apply:disabled { opacity: 0.6; cursor: not-allowed; }
#merge-cancel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.merge-groups {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.merge-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.merge-card.merge-disabled {
  opacity: 0.65;
}
.merge-card.merge-disabled .merge-option {
  pointer-events: none;
}
.merge-card__header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}
.merge-card__title {
  margin: 0;
  color: var(--text);
}
.merge-card__subtitle {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}
.merge-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.merge-option {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.02);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.merge-option label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  font-size: 13px;
}
.merge-option input[type="radio"] { accent-color: var(--accent); margin-top: 4px; }
.merge-option .entry-key {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 12px;
}
.merge-option .entry-title {
  font-size: 13px;
  color: var(--text);
}
.merge-option .entry-body {
  margin: 2px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  white-space: pre-wrap;
  word-break: break-word;
}

.footer {
  max-width: 1600px;
  margin: 0 auto 32px;
  padding: 0 16px;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
}


@media (max-width: 1080px) {
  /* stack panels on narrower screens */
  .grid.two,
  .grid.three { grid-template-columns: 1fr; }
  .code-wrap { min-height: 320px; }
  .span-two { grid-column: span 1; }
}

@media (max-width: 900px) {
  textarea,
  .log,
  .diff-view { min-height: 240px; }
}

@media (max-width: 640px) {
  .shell { padding: 0 14px; }
  .btn { width: 100%; justify-content: center; }
}