:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-muted: #f5f6f7;
  --border: #e1e4e8;
  --border-strong: #c6ccd2;
  --text: #20252b;
  --muted: #66717d;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --accent-soft: #d9f0ed;
  --warning: #b45309;
  --danger: #b42318;
  --mono: "Consolas", "SFMono-Regular", "Liberation Mono", monospace;
  --sans: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--border);
  background: #ffffff;
  padding: 18px;
}

.brand {
  margin-bottom: 18px;
}

.brand-name {
  font-size: 16px;
  font-weight: 650;
}

.module-nav,
.module-tabs {
  display: flex;
  gap: 8px;
}

.module-nav {
  flex-direction: column;
}

.module-tabs {
  overflow-x: auto;
  padding-bottom: 2px;
}

.nav-button {
  width: 100%;
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0 7px 10px;
  text-align: left;
}

.nav-button:hover {
  background: transparent;
  color: var(--text);
}

.nav-button.is-active {
  background: transparent;
  border-color: var(--accent);
  color: var(--text);
  font-weight: 650;
}

.main {
  min-width: 0;
}

.mobile-bar {
  display: none;
}

.module-root {
  width: min(1120px, calc(100vw - 220px));
  margin: 0 auto;
  padding: 28px 28px 44px;
}

.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  margin: 0 0 6px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 28px;
  line-height: 1.15;
}

h2 {
  font-size: 18px;
  margin-bottom: 14px;
}

h3 {
  font-size: 15px;
  margin-bottom: 10px;
}

.module-lead {
  color: var(--muted);
  max-width: 680px;
  line-height: 1.55;
  margin-bottom: 0;
}

.drop-zone {
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  padding: 24px;
  margin-bottom: 18px;
}

.drop-zone.is-dragging {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.compare-drop {
  margin-bottom: 14px;
}

.drop-zone-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.drop-title {
  margin: 0 0 4px;
  font-weight: 700;
}

.drop-meta {
  color: var(--muted);
  margin: 0;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  min-height: 38px;
  padding: 8px 12px;
}

.button:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.button.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #ffffff;
}

.button.compact {
  min-height: 34px;
  padding: 6px 10px;
}

.button.text-button {
  border-color: transparent;
  background: transparent;
  color: var(--accent-strong);
  padding-inline: 0;
}

.button.text-button:hover {
  border-color: transparent;
  background: transparent;
  color: var(--text);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.file-slot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.file-slot {
  min-height: 90px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  padding: 12px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.file-slot.is-dragging {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.file-slot.has-file {
  border-color: var(--border-strong);
}

.slot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.slot-label {
  font-weight: 650;
}

.slot-summary {
  color: var(--muted);
  line-height: 1.45;
}

.slot-file-name {
  color: var(--text);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.slot-file-meta {
  margin: 3px 0 7px;
  color: var(--muted);
  font-size: 13px;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
}

.analysis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.stack {
  display: grid;
  gap: 18px;
}

.tool-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
}

.stat-list {
  display: grid;
  gap: 10px;
}

.compact-list {
  margin-top: 14px;
}

.stat-row {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.stat-label {
  color: var(--muted);
}

.stat-value {
  min-width: 0;
  overflow-wrap: anywhere;
}

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

.hex-output {
  width: 100%;
  min-height: 306px;
  max-height: 460px;
  margin: 0;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #101418;
  color: #dce5ee;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  padding: 14px;
  white-space: pre;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-header h2 {
  margin-bottom: 0;
}

.panel-meta {
  color: var(--muted);
  font-size: 13px;
}

.comparison-panel {
  margin-bottom: 18px;
}

.gear-compare-card {
  display: grid;
  gap: 14px;
}

.gear-compare-head,
.gear-file-top,
.gear-chip-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.gear-compare-head {
  justify-content: space-between;
}

.gear-compare-head h3 {
  margin-bottom: 4px;
}

.gear-compare-head .message {
  margin-bottom: 0;
}

.gear-compare-files {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.gear-file-summary {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  padding: 12px;
}

.gear-file-summary.empty {
  background: #fbfcfd;
}

.gear-file-top {
  justify-content: space-between;
  margin-bottom: 10px;
}

.gear-sw-row {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin-bottom: 10px;
}

.gear-sw-row span {
  color: var(--muted);
}

.gear-sw-row strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 13px;
}

.gear-chip-row {
  flex-wrap: wrap;
}

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

.gear-badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 12px;
  font-weight: 650;
  padding: 2px 8px;
}

.comparison-table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.comparison-table th,
.comparison-table td {
  border-top: 1px solid var(--border);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

.comparison-table thead th {
  border-top: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.comparison-table tbody th {
  width: 160px;
  font-weight: 700;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 0;
  border-radius: 0;
  padding: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.status-chip.ok,
.status-banner.ok {
  color: var(--accent-strong);
}

.status-chip.warning {
  color: var(--warning);
}

.status-chip.danger,
.status-banner.danger {
  color: var(--danger);
}

.status-chip.neutral {
  color: var(--muted);
}

.comparison-state {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  padding: 3px 10px;
  white-space: nowrap;
}

.slot-state {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.comparison-state.ok {
  border-color: #93c9c2;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.slot-state.ok {
  color: var(--accent-strong);
}

.comparison-state.warning {
  border-color: #e7bf74;
  background: #fff4d6;
  color: var(--warning);
}

.slot-state.warning {
  color: var(--warning);
}

.comparison-state.danger {
  border-color: #efb4ad;
  background: #fff0ee;
  color: var(--danger);
}

.slot-state.danger {
  color: var(--danger);
}

.status-banner {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
}

.evidence-list {
  display: grid;
  gap: 4px;
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--text);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.match-block {
  min-width: 0;
}

.match-block h3 {
  margin-bottom: 8px;
}

.id-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.id-list li {
  display: grid;
  gap: 2px;
  min-width: 0;
  border-top: 1px solid var(--border);
  padding-top: 7px;
}

.id-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.id-list .mono {
  overflow-wrap: anywhere;
}

.offset {
  color: var(--muted);
  font-size: 12px;
}

.details-block {
  margin-top: 14px;
}

.details-block summary {
  color: var(--accent-strong);
  cursor: pointer;
  font-weight: 700;
}

.details-block[open] summary {
  margin-bottom: 10px;
}

.gear-tooth-block,
.tooth-compare-block {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.inline-panel-header {
  margin-bottom: 0;
}

.context-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.context-grid h4,
.partial-block h4 {
  margin-bottom: 6px;
  font-size: 13px;
}

.mini-hex {
  min-height: 42px;
  margin: 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-muted);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
  padding: 10px;
  white-space: pre-wrap;
}

.tooth-table-wrap {
  overflow-x: auto;
}

.tooth-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.tooth-table th,
.tooth-table td {
  border-top: 1px solid var(--border);
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

.tooth-table thead th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.partial-list {
  display: grid;
  gap: 6px;
}

.partial-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 60px minmax(0, 2fr);
  gap: 10px;
  border-top: 1px solid var(--border);
  padding-top: 6px;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

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

.input {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  padding: 8px 10px;
}

.input:focus,
.button:focus-visible,
.nav-button:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.24);
  outline-offset: 2px;
}

.message {
  color: var(--muted);
  line-height: 1.45;
  margin: 0;
}

.message.error {
  color: var(--danger);
}

.message.warning {
  color: var(--warning);
}

.hash-output {
  min-height: 42px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-muted);
  padding: 10px;
  overflow-wrap: anywhere;
}

.hidden {
  display: none !important;
}

@media (max-width: 940px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    display: none;
  }

  .mobile-bar {
    display: grid;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--border);
    background: rgba(251, 252, 253, 0.96);
    padding: 14px 18px;
  }

  .module-root {
    width: 100%;
    padding: 24px 18px 36px;
  }

  .module-header,
  .drop-zone-inner {
    display: grid;
  }

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

  .file-slot-grid,
  .analysis-grid,
  .gear-compare-files,
  .details-grid,
  .context-grid {
    grid-template-columns: 1fr;
  }

  .partial-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  h1 {
    font-size: 28px;
  }

  .tool-panel,
  .drop-zone {
    padding: 14px;
  }

  .stat-row {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .button {
    width: 100%;
  }
}