:root {
  --white: #ffffff;
  --accent: #c4511c;
  --accent-dark: #a34317;
  --deep: #08252b;
  --soft: #f9ede8;
  --deep-alt: #0f333a;
  --muted: #4f6468;
  --border: rgba(8, 37, 43, 0.12);
  --shadow: 0 18px 42px rgba(8, 37, 43, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--deep);
  background: linear-gradient(145deg, #fff6f2 0%, #fceee7 45%, #f9ede8 100%);
  min-height: 100vh;
}

.page-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 8% 18%, rgba(196, 81, 28, 0.22), transparent 32%),
    radial-gradient(circle at 88% 88%, rgba(15, 51, 58, 0.2), transparent 36%);
  z-index: -1;
}

.app {
  width: min(1240px, 94vw);
  margin: 24px auto;
}

.view {
  display: none;
  animation: rise 320ms ease;
}

.view.active {
  display: block;
}

.login-card {
  max-width: 760px;
  margin: 48px auto;
  padding: 34px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.98), rgba(249, 237, 232, 0.9));
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--accent-dark);
  font-weight: 700;
}

h1 {
  margin: 8px 0 10px;
  font-size: clamp(2rem, 4.8vw, 3rem);
}

.subtitle {
  margin: 0 0 24px;
  font-size: 1rem;
  color: var(--deep-alt);
  max-width: 56ch;
}

.flow-preview {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border);
}

.flow-step .material-icons {
  color: var(--accent);
}

.flow-step h3 {
  margin: 0;
  font-size: 0.95rem;
}

.flow-step p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  border-radius: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

h2 {
  margin: 6px 0;
}

.status-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.dot {
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--accent);
}

.pill {
  background: rgba(196, 81, 28, 0.12);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 4px 10px;
  font-weight: 700;
  font-size: 0.8rem;
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

.layout {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
}

.sidebar,
.content {
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
}

.sidebar {
  padding: 16px;
}

.sidebar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sidebar-head h3 {
  margin: 0;
}

.counter {
  color: var(--muted);
  font-size: 0.85rem;
}

.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.92);
}

.sidebar-search .material-icons {
  font-size: 18px;
  color: var(--muted);
}

.sidebar-search input {
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  font: inherit;
  color: var(--deep-alt);
}

.doc-list {
  display: grid;
  gap: 8px;
  max-height: 68vh;
  overflow: auto;
  padding-right: 2px;
}

.doc-group {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.75);
}

.doc-group-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 9px;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--deep-alt);
  background: rgba(15, 51, 58, 0.05);
  border-bottom: 1px solid var(--border);
}

.group-main {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.group-main .material-icons {
  font-size: 18px;
}

.group-count {
  color: var(--muted);
  font-size: 0.7rem;
}

.doc-children {
  display: grid;
  gap: 4px;
  padding: 6px;
}

.doc-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 8px;
  display: grid;
  gap: 2px;
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease;
}

.doc-item:hover,
.doc-item.active {
  transform: translateY(-1px);
  border-color: rgba(196, 81, 28, 0.46);
}

.doc-path {
  font-size: 0.78rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.doc-subpath {
  color: var(--muted);
  font-size: 0.68rem;
}

.badge {
  white-space: nowrap;
  height: fit-content;
  font-size: 0.64rem;
  border-radius: 999px;
  padding: 2px 7px;
  background: rgba(15, 51, 58, 0.12);
  color: var(--deep-alt);
  font-weight: 600;
}

.badge.updated {
  background: rgba(196, 81, 28, 0.14);
  color: var(--accent-dark);
}

.badge.added {
  background: rgba(48, 141, 87, 0.14);
  color: #236941;
}

.badge.deleted {
  background: rgba(194, 59, 34, 0.12);
  color: #a2311a;
}

.content {
  padding: 14px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--deep-alt);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  border-color: rgba(196, 81, 28, 0.42);
  background: rgba(196, 81, 28, 0.1);
  color: var(--accent-dark);
}

.tab-panel {
  display: none;
}

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

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

.panel-head h3 {
  margin: 0;
}

.filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

select,
textarea,
input[type="checkbox"] {
  accent-color: var(--accent);
}

select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--deep-alt);
  background: var(--white);
}

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

.compare-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: var(--white);
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
}

.compare-card:hover {
  transform: translateY(-1px);
  border-color: rgba(196, 81, 28, 0.4);
  box-shadow: 0 10px 24px rgba(8, 37, 43, 0.08);
}

.compare-card h4 {
  margin: 0 0 4px;
}

.compare-meta {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.85rem;
}

.compare-snippet {
  margin: 0;
  font-size: 0.88rem;
  color: var(--deep-alt);
  background: rgba(249, 237, 232, 0.65);
  border-left: 4px solid var(--accent);
  padding: 8px 10px;
  border-radius: 6px;
}

.compare-card[data-change-type="added"] .compare-snippet {
  background: rgba(48, 141, 87, 0.1);
  border-left-color: #2f8d57;
}

.compare-card[data-change-type="deleted"] .compare-snippet {
  background: rgba(194, 59, 34, 0.08);
  border-left-color: #a2311a;
}

.editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.editor-pane {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  overflow: hidden;
  min-height: 480px;
}

.pane-title {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--deep-alt);
}

.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.pane-tag {
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--deep-alt);
  background: rgba(15, 51, 58, 0.08);
}

.pane-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pane-btn {
  padding: 6px 10px;
  font-size: 0.8rem;
}

.diff-legend {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.legend-chip {
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.72rem;
  font-weight: 700;
}

.legend-chip.removed {
  background: rgba(194, 59, 34, 0.12);
  color: #a2311a;
}

.legend-chip.added {
  background: rgba(48, 141, 87, 0.14);
  color: #236941;
}

.legend-chip.changed {
  background: rgba(196, 81, 28, 0.14);
  color: var(--accent-dark);
}

.diff-viewer {
  min-height: 420px;
  max-height: 420px;
  overflow: auto;
  background: #fffcfb;
}

.editor-input {
  width: 100%;
  min-height: 420px;
  max-height: 420px;
  border: none;
  outline: none;
  resize: none;
  padding: 12px;
  background: #fffcfb;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--deep);
}

.hidden {
  display: none !important;
}

.diff-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: start;
  min-height: 28px;
  border-bottom: 1px solid rgba(8, 37, 43, 0.05);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.83rem;
}

.diff-row.empty {
  color: rgba(79, 100, 104, 0.45);
}

.diff-row.context {
  background: rgba(255, 255, 255, 0.9);
}

.diff-row.removed,
.diff-row.removed-pair {
  background: rgba(194, 59, 34, 0.08);
}

.diff-row.added,
.diff-row.added-pair {
  background: rgba(48, 141, 87, 0.09);
}

.diff-row.changed {
  background: rgba(196, 81, 28, 0.09);
}

.diff-number {
  padding: 6px 8px;
  color: var(--muted);
  text-align: right;
  border-right: 1px solid rgba(8, 37, 43, 0.06);
  user-select: none;
}

.diff-content {
  margin: 0;
  padding: 6px 10px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.editor-compose {
  display: grid;
  gap: 8px;
}

.compose-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.compose-head h4 {
  margin: 0;
}

.editor-compose-pane {
  min-height: 220px;
}

.preview-pane {
  background: #fffdfc;
}

.preview-output {
  min-height: 220px;
  padding: 14px;
  line-height: 1.7;
  color: var(--deep);
}

.preview-output h1,
.preview-output h2,
.preview-output h3 {
  margin: 0.6em 0 0.4em;
}

.preview-output p,
.preview-output ul,
.preview-output ol {
  margin: 0.5em 0;
}

.preview-output code {
  background: rgba(15, 51, 58, 0.09);
  border-radius: 6px;
  padding: 1px 5px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 10px;
}

.settings-card {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 12px;
  padding: 12px;
}

.settings-title {
  margin: 0 0 12px;
  font-weight: 800;
  color: var(--accent-dark);
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--deep-alt);
}

.setting-field {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.setting-field input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
  color: var(--deep-alt);
}

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 10px;
}

.pipeline-card {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: 12px;
  padding: 12px;
}

.pipeline-title {
  margin: 0 0 6px;
  font-weight: 800;
  color: var(--accent-dark);
}

.pipeline-card p {
  margin: 0 0 8px;
  color: var(--deep-alt);
}

.pipeline-card code {
  font-size: 0.82rem;
  color: var(--muted);
}

.result-banner {
  margin-top: 12px;
  border-radius: 12px;
  border: 1px solid rgba(196, 81, 28, 0.32);
  background: rgba(196, 81, 28, 0.1);
  padding: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.result-banner .material-icons {
  color: var(--accent-dark);
}

.result-banner p {
  margin: 0;
}

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

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 11px;
  padding: 10px 14px;
  font-weight: 700;
  transition: transform 130ms ease, filter 130ms ease;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--white);
}

.secondary-btn {
  background: rgba(15, 51, 58, 0.09);
  color: var(--deep-alt);
  border: 1px solid rgba(15, 51, 58, 0.2);
}

.primary-btn:hover,
.secondary-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
}

.wide {
  width: 100%;
  justify-content: center;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--deep-alt);
  color: var(--white);
  border-radius: 10px;
  padding: 10px 14px;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1020px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .doc-list {
    max-height: 260px;
  }

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

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

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar-actions {
    justify-content: flex-end;
  }

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