/* ─── BASE VARIABLES ─── */
:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --border: #e5e5e0;
  --border2: #d4d4cc;
  --text: #1a1a18;
  --muted: #6b6b65;
  --muted2: #9b9b93;
  --new-bg: #ecfdf5;
  --new-text: #059669;
  --new-border: #a7f3d0;
  --code-bg: #f4f4f0;
  --code-border: #deded8;
  --kbd-bg: #f0f0ea;
  --kbd-border: #c8c8c0;
  --kbd-shadow: #a8a8a0;
  --win-blue: #0078d4;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
}

/* ─── TOP BANNER ─── */
.top-banner {
  background: #1a1a18;
  color: #fafaf8;
  padding: 4px 16px;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.win-badge {
  background: var(--win-blue);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: 0.5px;
}

/* ─── TAB BAR ─── */
.tab-bar {
  display: flex;
  align-items: stretch;
  border-bottom: 2px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 0;
  padding: 0 8px;
}

.tab-btn {
  padding: 7px 22px;
  border: none;
  border-bottom: 3px solid transparent;
  background: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.tab-btn.claude-tab.active {
  color: #d4500a;
  border-bottom-color: #d4500a;
}

.tab-btn.codex-tab.active {
  color: #0f766e;
  border-bottom-color: #0f766e;
}

.tab-ver {
  font-size: 9px;
  font-weight: 400;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0 4px;
  color: var(--muted2);
  font-family: 'Cascadia Code', 'Consolas', monospace;
}

.tab-spacer {
  flex: 1;
}

.print-btn {
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  cursor: pointer;
  color: var(--muted);
  align-self: center;
  margin-left: 4px;
}

.print-btn:hover {
  background: var(--code-bg);
}

/* ─── TAB PANES ─── */
.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* ─── PER-PANE ACCENT COLORS ─── */
.claude-pane {
  --accent: #d4500a;
  --accent-bg: #fff4ef;
  --section-icon: #d4500a;
}

.codex-pane {
  --accent: #0f766e;
  --accent-bg: #ecfeff;
  --section-icon: #0f766e;
}

.claude-pane code {
  color: #c2410c;
}

.codex-pane code {
  color: #0f766e;
}

/* ─── PAGE HEADER ─── */
.page-header {
  padding: 6px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text);
}

.page-header h1 span {
  color: var(--accent);
}

.meta {
  font-size: 11px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-version {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 1px 6px;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 10px;
  color: var(--text);
}

/* ─── CHANGELOG TOGGLE ─── */
.changelog-wrap {
  border-bottom: 1px solid var(--border);
  background: var(--accent-bg);
}

.changelog-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  cursor: pointer;
  user-select: none;
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
}

.claude-pane .changelog-toggle:hover {
  background: rgba(212, 80, 10, 0.05);
}

.codex-pane .changelog-toggle:hover {
  background: rgba(15, 118, 110, 0.06);
}

.changelog-toggle .arrow {
  font-size: 9px;
  transition: transform 0.2s;
  display: inline-block;
}

.changelog-toggle.open .arrow {
  transform: rotate(90deg);
}

.changelog-body {
  display: none;
  padding: 0 16px 8px;
  font-size: 11px;
  color: var(--text);
}

.changelog-body.open {
  display: block;
}

.changelog-body ul {
  padding-left: 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--muted);
}

.claude-pane .changelog-body code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 10px;
  background: rgba(212, 80, 10, 0.08);
  padding: 0 3px;
  border-radius: 2px;
  color: var(--accent);
}

.codex-pane .changelog-body code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 10px;
  background: rgba(15, 118, 110, 0.08);
  padding: 0 3px;
  border-radius: 2px;
  color: var(--accent);
}

/* ─── MAIN LAYOUT ─── */
.main {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}

.section {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 10px 12px 12px;
}

.section:last-child {
  border-right: none;
}

.section.wide {
  grid-column: span 2;
}

.section.full {
  grid-column: span 3;
  border-right: none;
}

.section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--section-icon);
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--border);
}

.group {
  margin-bottom: 8px;
}

.group:last-child {
  margin-bottom: 0;
}

.group-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted2);
  margin-bottom: 3px;
}

.row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 1.5px 0;
  line-height: 1.35;
}

.row-key {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  min-width: 0;
}

.row-desc {
  font-size: 12px;
  color: var(--muted);
  flex: 1;
}

/* ─── CODE ─── */
code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 10px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 3px;
  padding: 0px 4px;
  white-space: nowrap;
}

/* ─── KBD ─── */
kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 9.5px;
  font-weight: 600;
  background: var(--kbd-bg);
  border: 1px solid var(--kbd-border);
  border-bottom: 2px solid var(--kbd-shadow);
  border-radius: 3px;
  padding: 0px 5px;
  min-width: 20px;
  color: var(--text);
  white-space: nowrap;
  line-height: 1.6;
}

.plus {
  font-size: 9px;
  color: var(--muted2);
  margin: 0 1px;
}

/* ─── BADGES ─── */
.badge-new {
  display: inline-flex;
  align-items: center;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: var(--new-bg);
  color: var(--new-text);
  border: 1px solid var(--new-border);
  border-radius: 3px;
  padding: 0px 4px;
  vertical-align: middle;
  margin-left: 2px;
}

.badge-warn {
  display: inline-flex;
  font-size: 8px;
  font-weight: 700;
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
  border-radius: 3px;
  padding: 0px 4px;
  vertical-align: middle;
  margin-left: 2px;
}

.os-note {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 9px;
  color: var(--win-blue);
  background: #e8f4fd;
  border: 1px solid #90caf9;
  border-radius: 3px;
  padding: 0px 5px;
  margin-left: 3px;
}

/* ─── MULTI-COL ─── */
.cols2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}

.cols3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0 14px;
}

/* ─── KBD ROWS (Claude keyboard section) ─── */
.krow {
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 1px 0;
  line-height: 1.3;
}

.kkey {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  min-width: 86px;
}

.kkey kbd {
  font-size: 9px;
  padding: 0px 3px;
  min-width: 16px;
  line-height: 1.55;
}

.kdesc {
  font-size: 10.5px;
  color: var(--muted);
  flex: 1;
}

/* ─── FOOTER ─── */
.footer-modes {
  border-top: 1px solid var(--border);
  padding: 6px 16px;
  font-size: 10.5px;
  color: var(--muted);
  line-height: 1.6;
}

.footer-modes strong {
  color: var(--text);
}

.footer-modes code {
  font-size: 9.5px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .main {
    grid-template-columns: repeat(2, 1fr);
  }

  .section.wide {
    grid-column: span 2;
  }

  .section.full {
    grid-column: span 2;
  }

  .cols3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .tab-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

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

  .section.wide,
  .section.full {
    grid-column: span 1;
  }

  .cols3,
  .cols2 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 10px 10px 12px;
  }
}

@media print {

  .top-banner,
  .tab-bar {
    display: none;
  }

  .tab-pane {
    display: block !important;
  }

  .tab-pane:not(.active) {
    display: none !important;
  }

  .main {
    break-inside: avoid;
  }

  .section {
    break-inside: avoid;
  }
}

/* ─── CUSTOM TOOLTIP ─── */
.cl-tip {
  position: relative;
  cursor: default;
}

.cl-tip::after {
  content: ' ℹ';
  font-size: 9px;
  color: var(--accent);
  opacity: 0.55;
}

#cl-tooltip {
  display: none;
  position: fixed;
  z-index: 9999;
  max-width: 340px;
  background: #1c1c1a;
  color: #e8e8e2;
  border: 1px solid #3a3a38;
  border-radius: 7px;
  padding: 10px 13px;
  font-size: 11px;
  line-height: 1.55;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

#cl-tooltip .tt-title {
  font-weight: 700;
  font-size: 12px;
  margin-bottom: 5px;
  color: #fcd34d;
}

#cl-tooltip .tt-example {
  margin-top: 6px;
  background: #2a2a28;
  border-radius: 4px;
  padding: 5px 8px;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 10px;
  color: #86efac;
  white-space: pre;
}

#cl-tooltip .tt-label {
  font-size: 9px;
  color: #9ca3af;
  margin-top: 5px;
}

/* ─── HISTORY STYLES ─── */
.hist-divider {
  margin: 10px 0 5px;
  padding: 4px 8px;
  background: var(--border);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hist-divider:hover {
  background: var(--border2);
  color: var(--text);
}

.history-container {
  display: none;
  border-left: 2px solid var(--border);
  margin-left: 8px !important;
  opacity: 0.9;
  flex-direction: column;
  max-height: 500px;
  overflow-y: auto;
  padding-right: 5px;
}

.history-container.open {
  display: flex;
}

.ver-group {
  margin: 5px 0;
  padding: 0 5px;
}

.ver-group summary {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  list-style: none;
  display: flex;
  align-items: center;
}

.ver-group summary::before {
  content: '▶';
  font-size: 8px;
  margin-right: 6px;
  transition: transform 0.2s;
}

.ver-group[open] summary::before {
  transform: rotate(90deg);
}

.ver-group summary:hover {
  background: var(--border);
  color: var(--text);
}

.ver-group ul {
  margin-top: 4px !important;
  padding-left: 15px !important;
}

.hist-arrow {
  transition: transform 0.2s;
}

.hist-divider.open .hist-arrow {
  transform: rotate(180deg);
}