:root {
  color-scheme: light;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  --bg: #f4f1ea;
  --panel: #fffef9;
  --ink: #1d1d1b;
  --muted: #5f5b55;
  --brand: #275d4b;
  --brand-strong: #154236;
  --border: #d8d0c5;

  /* Spacing Scale (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;

  /* Breakpoints */
  --bp-sm: 480px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;

  /* Fluid Typography */
  --font-size-xs: clamp(0.625rem, 0.6rem + 0.125vw, 0.75rem);
  --font-size-sm: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-base: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --font-size-lg: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1a1a18;
  --panel: #252522;
  --ink: #e8e6e1;
  --muted: #a39e96;
  --brand: #4a9e7f;
  --brand-strong: #3d8a6e;
  --border: #3d3d38;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

[data-theme="dark"] body {
  background: radial-gradient(circle at top right, #2a2520, var(--bg));
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.shell-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(7px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.shell-body {
  display: grid;
  grid-template-columns: 230px 1fr;
  min-height: calc(100vh - 57px);
}

.shell-nav {
  border-right: 1px solid var(--border);
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.nav-item {
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  color: var(--muted);
}

.nav-item:hover {
  background: #ece7df;
  color: var(--ink);
}

.nav-item-active {
  background: var(--brand);
  color: #f7fff7;
}

.shell-content {
  padding: 1.25rem;
  overflow-x: hidden;
}

/* Responsive Shell */
@media (max-width: 767px) {
  .shell-body {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  .shell-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav-item {
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
    font-size: var(--font-size-sm);
  }

  .shell-content {
    padding: var(--space-4);
  }
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

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

.card-value {
  margin: 0.45rem 0 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.quick-actions {
  display: flex;
  gap: 0.6rem;
}

.primary-button,
.secondary-button,
.ghost-button {
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 0.58rem 0.85rem;
  cursor: pointer;
  font: inherit;
}

.primary-button {
  background: var(--brand);
  color: white;
}

.primary-button:hover {
  background: var(--brand-strong);
}

.secondary-button {
  border-color: var(--border);
  background: var(--panel);
}

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

.user-chip {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.9rem;
}

.center-screen {
  min-height: 55vh;
  display: grid;
  place-content: center;
  text-align: center;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@media (max-width: 767px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.project-card {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.project-info h3 {
  margin: 0 0 0.35rem;
}

.project-info p {
  margin: 0;
}

.project-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-shrink: 0;
}

.delete-confirm {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.danger-button {
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 0.58rem 0.85rem;
  cursor: pointer;
  font: inherit;
  background: #b91c1c;
  color: white;
}

.danger-text {
  color: #b91c1c;
}

.error-text {
  color: #b91c1c;
  margin: 0;
}

.dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: grid;
  place-content: center;
  z-index: 50;
}

.dialog {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: var(--space-5);
  width: min(560px, 100vw - 2rem);
  max-height: min(800px, 100vh - 2rem);
  overflow-y: auto;
}

.dialog-lg {
  width: min(800px, 100vw - 2rem);
}

@media (max-width: 767px) {
  .dialog {
    width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    padding: var(--space-4);
  }

  .dialog-overlay {
    padding: 0;
  }
}

.dialog h2 {
  margin: 0 0 1rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-field input,
.form-field textarea {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
}

.keys-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.key-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

.key-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.key-header h3 {
  margin: 0;
}

.key-meta {
  margin-bottom: 0.75rem;
}

.key-public {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  background: #f5f3ee;
  border-radius: 8px;
}

.key-public code {
  font-size: 0.85rem;
  word-break: break-all;
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group input {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
}

.error {
  color: #b91c1c;
  padding: 0.75rem;
  background: #fef2f2;
  border-radius: 10px;
}

@media (max-width: 860px) {
  .shell-body {
    grid-template-columns: 1fr;
  }

  .shell-nav {
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

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

  .quick-actions {
    flex-direction: column;
  }

  .project-card {
    flex-direction: column;
  }
}

/* URL Validation Styles */
.valid-url {
  border-color: #16a34a !important;
  background-color: #f0fdf4 !important;
}

.needs-parsing-url {
  border-color: #ca8a04 !important;
  background-color: #fefce8 !important;
}

.invalid-url {
  border-color: #dc2626 !important;
  background-color: #fef2f2 !important;
}

.validation-status {
  font-size: 0.85rem;
  margin-top: 0.25rem;
  display: block;
}

.validation-status.valid {
  color: #16a34a;
}

.validation-status.warning {
  color: #ca8a04;
}

.validation-status.invalid {
  color: #dc2626;
}

.validation-status.validating {
  color: var(--muted);
}

.url-suggestion {
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: #fefce8;
  border-radius: 8px;
  border: 1px solid #fde047;
}

.suggestion-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.suggested-url {
  font-size: 0.85rem;
  color: #854d0e;
  flex: 1;
  word-break: break-all;
}

.secondary-button.small {
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
}

/* Git History Page Styles */
.history-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.branch-selector {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  background: var(--panel);
  color: var(--ink);
}

.history-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  min-height: 60vh;
}

.commit-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  overflow-y: auto;
  max-height: 70vh;
}

.commit-list.with-detail {
  grid-column: 1;
}

.commit-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.commit-item:hover {
  background: #ece7df;
}

.commit-item.selected {
  border-color: var(--brand);
  background: #f0f7f4;
}

.commit-graph {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--brand);
  white-space: pre;
  flex-shrink: 0;
  min-width: 60px;
}

.graph-line {
  display: inline-block;
}

.commit-content {
  flex: 1;
  min-width: 0;
}

.commit-header {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.35rem;
}

.commit-hash {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--brand);
  background: #f0f7f4;
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
}

.commit-refs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.ref-tag {
  font-size: 0.75rem;
  padding: 0.15rem 0.4rem;
  background: var(--brand);
  color: white;
  border-radius: 999px;
}

.commit-message {
  margin: 0 0 0.35rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.commit-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.commit-detail-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  overflow-y: auto;
  max-height: 70vh;
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.detail-header h3 {
  margin: 0;
}

.detail-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.detail-section {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.detail-section h4 {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.commit-hash-full {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--brand);
  margin: 0;
}

.commit-message-full {
  margin: 0.5rem 0 0;
  line-height: 1.5;
  white-space: pre-wrap;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem;
  background: #f5f3ee;
  border-radius: 10px;
}

.stat.additions {
  background: #f0fdf4;
}

.stat.deletions {
  background: #fef2f2;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ink);
}

.stat.additions .stat-value {
  color: #16a34a;
}

.stat.deletions .stat-value {
  color: #dc2626;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
}

.parent-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.parent-hash {
  font-family: monospace;
  font-size: 0.85rem;
  padding: 0.2rem 0.5rem;
  background: #f5f3ee;
  border-radius: 6px;
}

.diff-content {
  font-family: monospace;
  font-size: 0.8rem;
  line-height: 1.5;
  background: #f5f3ee;
  padding: 0.75rem;
  border-radius: 10px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

@media (min-width: 1024px) {
  .history-container {
    grid-template-columns: 1fr 400px;
  }

  .commit-list.with-detail {
    grid-column: 1;
  }

  .commit-detail-panel {
    grid-column: 2;
    position: sticky;
    top: 1rem;
  }
}

/* Repository Workspace */
.repo-workspace {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 60px);
  overflow: hidden;
}

.workspace-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.workspace-header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.workspace-header-icon {
  font-size: 1.5rem;
}

.workspace-header-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.workspace-header-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.workspace-header-subtitle {
  color: var(--muted);
  font-size: 0.875rem;
}

.workspace-header-actions {
  display: flex;
  gap: 0.5rem;
}

.workspace-header-action-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.workspace-header-action-btn:hover {
  background: var(--bg);
  border-color: var(--brand);
}

.workspace-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.workspace-title h1 {
  margin: 0;
  font-size: 1.25rem;
}

.repo-name {
  color: var(--muted);
  font-size: 0.875rem;
}

.workspace-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.workspace-sidebar {
  width: 280px;
  min-width: 280px;
  border-right: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

@media (max-width: 767px) {
  .workspace-layout {
    flex-direction: column;
  }

  .workspace-sidebar {
    width: 100%;
    min-width: auto;
    max-height: 40vh;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .workspace-header {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
    padding: var(--space-4);
  }

  .workspace-header-actions {
    width: 100%;
    flex-wrap: wrap;
  }
}

.sidebar-section {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-section label {
  margin: 0;
}

.workspace-main {
  flex: 1;
  overflow: auto;
  padding: 1rem;
  background: var(--bg);
}

/* File Tree */
.file-tree {
  flex: 1;
  overflow: auto;
  padding: 0.5rem;
}

.tree-entry {
  display: block;
  width: 100%;
  padding: 0.375rem 0.5rem;
  border: none;
  background: none;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-entry:hover {
  background: var(--bg);
}

.tree-directory {
  font-weight: 500;
}

.tree-up {
  color: var(--muted);
  font-style: italic;
}

/* File Viewer */
.file-viewer {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.file-viewer-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.file-breadcrumbs {
  font-size: 0.875rem;
  font-family: monospace;
}

.breadcrumb-sep {
  color: var(--muted);
  margin: 0 0.25rem;
}

.file-content {
  padding: 1rem;
  overflow: auto;
  max-height: calc(100vh - 200px);
}

.file-content pre {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.file-viewer-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 300px;
}

/* File Status Indicators */
.file-status-indicator {
  float: right;
  font-size: 0.75rem;
  font-weight: bold;
  padding: 0 0.375rem;
  border-radius: 3px;
  margin-left: 0.5rem;
}

.file-status-indicator.modified {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
}

.file-status-indicator.added {
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}

.file-status-indicator.deleted {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.file-status-indicator.untracked {
  color: #6b7280;
  background: rgba(107, 114, 128, 0.1);
}

/* Commit Panel */
.commit-panel {
  padding: 1rem;
  border-top: 1px solid var(--border);
  background: var(--panel);
}

.commit-panel h4 {
  margin: 0 0 0.5rem 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.file-list {
  max-height: 150px;
  overflow: auto;
  margin-bottom: 0.75rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.8125rem;
}

.file-status {
  font-weight: bold;
  font-size: 0.75rem;
  width: 1rem;
  text-align: center;
}

.file-item.modified .file-status { color: #f59e0b; }
.file-item.added .file-status { color: #10b981; }
.file-item.deleted .file-status { color: #ef4444; }
.file-item.untracked .file-status { color: #6b7280; }

.commit-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.commit-message-input {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.875rem;
  resize: vertical;
}

.commit-button {
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
}

.commit-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.commit-error {
  color: #ef4444;
  font-size: 0.8125rem;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  min-width: 400px;
  max-width: 600px;
  max-height: 80vh;
  overflow: auto;
}

.modal-content h2 {
  margin: 0 0 1rem 0;
  font-size: 1.25rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Merge Dialog */
.merge-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.merge-form .form-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.merge-form label {
  font-size: 0.875rem;
  font-weight: 500;
}

.merge-form select,
.merge-form input,
.merge-form textarea {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.875rem;
}

.merge-form textarea {
  resize: vertical;
}

.input-disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.success-text {
  color: #10b981;
  font-size: 0.875rem;
  padding: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 4px;
}

/* Settings Layout */
.settings-layout {
  display: flex;
  gap: 2rem;
  padding: 1.5rem 0;
}

.settings-sidebar {
  width: 200px;
  flex-shrink: 0;
}

.settings-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.settings-nav-link {
  padding: 0.625rem 1rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.settings-nav-link:hover {
  background: var(--bg);
  color: var(--ink);
}

.settings-nav-link.active {
  background: var(--brand);
  color: white;
  font-weight: 500;
}

.settings-content {
  flex: 1;
  min-width: 0;
}

.settings-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .settings-layout {
    flex-direction: column;
    gap: 1rem;
  }

  .settings-sidebar {
    width: 100%;
  }

  .settings-nav {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .settings-nav-link {
    white-space: nowrap;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  .workspace-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .workspace-header-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

.settings-panel h2 {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
}

.settings-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.settings-breadcrumb a {
  color: var(--brand);
  text-decoration: none;
}

.settings-breadcrumb a:hover {
  text-decoration: underline;
}

.project-settings-page {
  padding: 1.5rem;
}

/* Repositories Settings Tab */
.repositories-settings-tab h2 {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
}

.repositories-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.repository-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.repository-info h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.repository-info p {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.repo-type {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--brand);
  color: white;
  border-radius: 999px;
}

/* Git Toolbar - Top Bar Styles */
.git-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  min-height: 48px;
}

.toolbar-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-button {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.toolbar-button:hover:not(:disabled) {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

.toolbar-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.toolbar-button.primary {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

.branch-select {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.85rem;
  cursor: pointer;
  min-width: 140px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  background: var(--brand);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 999px;
}

.toolbar-error {
  color: #ef4444;
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 4px;
}

.toolbar-input {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.85rem;
}

.new-branch-form {
  padding: 0.75rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 0.5rem;
}

.status-summary {
  gap: 0.75rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

.status-badge.modified {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

.status-badge.added {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
}

.status-badge.deleted {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.status-badge.untracked {
  background: rgba(107, 114, 128, 0.1);
  color: #4b5563;
}

/* File Editor */
.file-editor {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.file-editor-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.file-actions {
  display: flex;
  gap: 0.5rem;
}

.file-editor-content {
  flex: 1;
  overflow: auto;
  background: var(--bg);
}

/* Syntax Highlighter */
.syntax-highlighter {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.highlighter-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.language-badge {
  font-size: 0.8rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg);
  border-radius: 4px;
  color: var(--muted);
}

.copy-button {
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  color: var(--ink);
}

.copy-button:hover {
  background: var(--brand);
  color: white;
  border-color: var(--brand);
}

.code-container {
  display: flex;
  flex: 1;
  overflow: auto;
  font-family: 'Fira Code', 'Monaco', 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.5;
}

.line-numbers {
  display: flex;
  flex-direction: column;
  padding: 1rem 0.5rem;
  background: var(--panel);
  border-right: 1px solid var(--border);
  color: var(--muted);
  text-align: right;
  user-select: none;
  min-width: 3rem;
}

.line-number {
  padding: 0 0.5rem;
}

.code-block {
  flex: 1;
  margin: 0;
  padding: 1rem;
  overflow: auto;
  background: transparent;
}

.code-block code {
  display: block;
  background: transparent;
}

/* Code Editor */
.code-editor {
  height: 100%;
  overflow: auto;
}

.editor-textarea {
  font-family: 'Fira Code', 'Monaco', 'Courier New', monospace;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100%;
}

.editor-textarea-input {
  background: transparent;
  color: var(--ink);
  caret-color: var(--ink);
}

.editor-line {
  display: flex;
}

.editor-line-number {
  display: inline-block;
  width: 3rem;
  padding: 0 0.5rem;
  text-align: right;
  color: var(--muted);
  user-select: none;
  background: var(--panel);
  border-right: 1px solid var(--border);
}

.editor-line-content {
  flex: 1;
  padding: 0 0.5rem;
  white-space: pre;
}

/* Commit Dialog */
.dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.commit-dialog {
  background: var(--panel);
  border-radius: 14px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.dialog-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.dialog-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--muted);
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
}

.dialog-close:hover {
  background: var(--bg);
  color: var(--ink);
}

.dialog-body {
  padding: 1.5rem;
}

.file-info {
  margin: 0 0 1rem;
  color: var(--muted);
}

.diff-preview {
  margin-bottom: 1.5rem;
}

.diff-preview h4 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.diff-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: auto;
  max-height: 300px;
  font-family: 'Fira Code', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
}

.diff-line {
  display: flex;
  padding: 0.15rem 0.5rem;
  gap: 0.5rem;
}

.diff-line-number {
  color: var(--muted);
  min-width: 2rem;
  text-align: right;
  user-select: none;
}

.diff-marker {
  width: 1rem;
  text-align: center;
  font-weight: bold;
}

.diff-added {
  background: rgba(16, 185, 129, 0.1);
}

.diff-added .diff-marker {
  color: #059669;
}

.diff-removed {
  background: rgba(239, 68, 68, 0.1);
}

.diff-removed .diff-marker {
  color: #dc2626;
}

.diff-same {
  background: transparent;
}

.warning-message {
  padding: 0.75rem;
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}

/* Prism.js Theme Integration */
code[class*="language-"],
pre[class*="language-"] {
  color: var(--ink);
  text-shadow: none;
  font-family: 'Fira Code', 'Monaco', 'Courier New', monospace;
  font-size: 14px;
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
  line-height: 1.5;
  tab-size: 2;
  hyphens: none;
}

/* Syntax Highlighting Colors */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: var(--muted);
}

.token.punctuation {
  color: var(--ink);
}

.token.namespace {
  opacity: 0.7;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #f59e0b;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #10b981;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
  color: #f43f5e;
}

.token.atrule,
.token.attr-value,
.token.keyword {
  color: #3b82f6;
}

.token.function,
.token.class-name {
  color: #8b5cf6;
}

.token.regex,
.token.important,
.token.variable {
  color: #ec4899;
}

/* Icon System */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  vertical-align: middle;
}

.icon svg {
  display: block;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

.icon-md {
  width: 20px;
  height: 20px;
}

.icon-lg {
  width: 24px;
  height: 24px;
}

.icon-xl {
  width: 32px;
  height: 32px;
}

/* Button icons */
button .icon,
a .icon {
  margin-right: 0.35rem;
}

button .icon:last-child,
a .icon:last-child {
  margin-right: 0;
}

/* Navigation icons */
.nav-item .icon {
  margin-right: 0.5rem;
}

/* Status badge icons */
.status-badge .icon {
  margin-right: 0.25rem;
}

/* ============================================
   Responsive Design System
   ============================================ */

/* Layout Utilities */
.container {
  width: 100%;
  max-width: min(1200px, 100vw - 2rem);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack-sm {
  gap: var(--space-2);
}

.stack-md {
  gap: var(--space-4);
}

.stack-lg {
  gap: var(--space-6);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

/* Text Utilities */
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.truncate-multiline {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.break-word {
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

/* Touch Targets */
.button,
.nav-link,
.icon-button,
button,
[role="button"] {
  min-height: 44px;
  min-width: 44px;
}

/* Dialog Responsive */
.dialog {
  width: min(560px, 100vw - 2rem);
  max-height: min(800px, 100vh - 2rem);
  overflow-y: auto;
}

.dialog-lg {
  width: min(800px, 100vw - 2rem);
}

/* Table Responsive */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-responsive table {
  min-width: 100%;
}

/* Mobile-first Media Queries */
@media (max-width: 767px) {
  /* Card layout for tables on mobile */
  .table-responsive thead {
    display: none;
  }

  .table-responsive tbody tr {
    display: block;
    margin-bottom: var(--space-4);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: var(--space-4);
  }

  .table-responsive td {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--border);
  }

  .table-responsive td:last-child {
    border-bottom: none;
  }

  .table-responsive td::before {
    content: attr(data-label);
    font-weight: 600;
    margin-right: var(--space-2);
  }

  /* Larger touch targets on mobile */
  .button,
  button {
    padding: var(--space-3) var(--space-4);
  }

  /* Full-width inputs on mobile */
  input,
  select,
  textarea {
    width: 100%;
    min-height: 44px;
  }
}

/* Small devices */
@media (min-width: 480px) {
  .container {
    padding-inline: var(--space-5);
  }
}

/* Medium devices */
@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-6);
  }
}

/* Large devices */
@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-8);
  }
}

/* Extra large devices */
@media (min-width: 1280px) {
  .container {
    max-width: 1200px;
  }
}