:root {
  --bg: #1e1f22;
  --bg-alt: #25262a;
  --bg-alt2: #2d2f33;
  --border: #3a3c42;
  --text: #dcdfe4;
  --text-dim: #9da1a7;
  --accent: #d92632;
  --accent-alt: #c51724;
  --hover: #313337;
  --danger: #ff4d4d;
  --font-stack: "Segoe UI", "Ubuntu", "Helvetica Neue", Arial, sans-serif;
  --radius: 4px;
  --tab-height: 32px;
}

/* LIGHT THEME OVERRIDES */
:root[data-theme="light"] {
  --bg: #f5f6f8;
  --bg-alt: #ffffff;
  --bg-alt2: #f0f1f3;
  --border: #d0d4db;
  --text: #22252a;
  --text-dim: #5a5f66;
  --accent: #d92632;
  --accent-alt: #b9131e;
  --hover: #e4e7eb;
  --danger: #ff4d4d;
}

* {
  box-sizing: border-box;
  user-select: none;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-stack);
  font-size: 14px;
  transition: background .25s, color .25s;
}

#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Activity Bar */
#activity-bar {
  background: #18191b;
  width: 48px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  transition: background .25s, border-color .25s;
}
:root[data-theme="light"] #activity-bar {
  background: #eceef1;
}

.activity-item {
  text-align: center;
  padding: 10px 0;
  cursor: pointer;
  font-size: 18px;
  position: relative;
  filter: grayscale(40%);
  transition: background .15s, filter .2s;
}

.activity-item.active,
.activity-item:hover {
  background: var(--hover);
  filter: none;
}

.activity-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
}

#activity-bar .spacer {
  flex: 1;
}

/* Side Bar */
#side-bar {
  width: 280px;
  background: var(--bg-alt);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background .25s, border-color .25s;
}

.panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel.hidden {
  display: none;
}

.panel-header {
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .25s, border-color .25s;
}

.explorer-actions button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 10px;
  padding: 2px 6px;
  cursor: pointer;
  border-radius: var(--radius);
  margin-left: 4px;
  transition: background .2s, color .2s, border-color .2s;
}
.explorer-actions button:hover {
  border-color: var(--accent);
  color: var(--text);
}

#project-name-wrapper {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
#project-name {
  width: 100%;
  background: var(--bg-alt2);
  border: 1px solid var(--border);
  padding: 4px 6px;
  color: var(--text);
  border-radius: var(--radius);
  font-size: 13px;
  transition: background .25s, color .25s, border-color .25s;
}
#project-name:focus {
  outline: 1px solid var(--accent);
}

.tree-root {
  margin: 0;
  padding: 4px 0 40px;
  list-style: none;
  overflow-y: auto;
  flex: 1;
  font-family: monospace;
}

.tree-root li {
  line-height: 1.6;
  position: relative;
  padding-left: 8px;
}

.tree-item {
  display: flex;
  align-items: center;
  padding: 2px 4px 2px 6px;
  margin: 1px 4px;
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background .15s, color .15s;
}

.tree-item.folder > .twisty {
  width: 12px;
  display: inline-block;
  text-align: center;
  font-size: 11px;
  margin-right: 4px;
  color: var(--text-dim);
}

.tree-item.file > .twisty {
  width: 12px;
  margin-right: 4px;
}

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

.tree-item.active {
  background: #32353a;
  color: var(--text);
  border: 1px solid var(--accent-alt);
}
:root[data-theme="light"] .tree-item.active {
  background: #dfe2e7;
  border-color: var(--accent);
}

.tree-item .name.changed::after {
  content: "*";
  color: var(--accent);
  margin-left: 2px;
}

.children {
  margin-left: 14px;
  border-left: 1px dashed #3a3c42;
  padding-left: 4px;
  display: none;
}
:root[data-theme="light"] .children {
  border-left-color: #c4c9d1;
}

.folder.expanded > .children {
  display: block;
}

.icon {
  font-size: 12px;
  margin-right: 4px;
  color: var(--accent);
  opacity: .85;
}

#slots-list {
  padding: 8px;
  overflow-y: auto;
  flex: 1;
}

.slot {
  border: 1px solid var(--border);
  background: var(--bg-alt2);
  padding: 8px;
  border-radius: var(--radius);
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background .25s, border-color .25s;
}

.slot-header {
  font-weight: 600;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slot-buttons button {
  background: #2f3136;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 6px;
  border-radius: var(--radius);
  cursor: pointer;
  margin-left: 4px;
  transition: background .2s, color .2s, border-color .2s;
}
.slot-buttons button:hover {
  color: var(--text);
  border-color: var(--accent);
}
:root[data-theme="light"] .slot-buttons button {
  background: #e1e4e9;
}

.slot.empty {
  opacity: .7;
}

.slot-hint {
  font-size: 12px;
  padding: 4px 8px 10px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  transition: color .25s, border-color .25s;
}

.github-section {
  padding: 10px;
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.github-section input {
  width: 100%;
  background: var(--bg-alt2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px;
  border-radius: var(--radius);
}
.github-section input:focus {
  outline: 1px solid var(--accent);
}
.github-section button {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 6px 12px;
  font-size: 13px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .2s;
}
.github-section button:hover {
  background: var(--accent-alt);
}
.small-note {
  font-size: 11px;
  color: var(--text-dim);
}
#clone-progress {
  font-size: 12px;
  line-height: 1.4;
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border);
  background: var(--bg-alt2);
  padding: 6px;
  border-radius: var(--radius);
  transition: background .25s, border-color .25s;
}

/* Main */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-alt2);
  position: relative;
  transition: background .25s;
}

/* Tabs */
#tabs-bar {
  height: var(--tab-height);
  display: flex;
  align-items: flex-end;
  background: #1f2023;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  transition: background .25s, border-color .25s;
}
:root[data-theme="light"] #tabs-bar {
  background: #d8dbe0;
}
#tabs-bar::-webkit-scrollbar { display: none; }

.tab {
  background: #26282b;
  margin-right: 2px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  border: 1px solid transparent;
  border-bottom: none;
  max-width: 200px;
  transition: background .15s, color .15s, border-color .15s;
}
:root[data-theme="light"] .tab {
  background: #eceff3;
}
.tab:hover {
  background: #2d2f33;
}
:root[data-theme="light"] .tab:hover {
  background: #e2e5ea;
}
.tab.active {
  background: #32353a;
  border-color: var(--border);
  border-bottom: 1px solid #32353a;
}
:root[data-theme="light"] .tab.active {
  background: #dfe2e7;
  border-color: #c3c8cf;
  border-bottom: 1px solid #dfe2e7;
}
.tab .dirty {
  color: var(--accent);
  font-weight: bold;
}
.tab .close-btn {
  font-size: 12px;
  opacity: .6;
  cursor: pointer;
  padding: 2px;
}
.tab .close-btn:hover {
  opacity: 1;
  color: var(--accent);
}

/* Editor */
#editor-container {
  flex: 1;
  position: relative;
  display: flex;
}
#editor {
  flex: 1;
  width: 100%;
  height: 100%;
  background: #1e1f22;
  border: none;
  padding: 14px;
  font-family: "Fira Code", "Consolas", monospace;
  font-size: 14px;
  color: #e6e9ee;
  line-height: 1.4;
  resize: none;
  outline: none;
  caret-color: var(--accent);
  transition: background .25s, color .25s;
}
:root[data-theme="light"] #editor {
  background: #ffffff;
  color: #22252a;
}

#editor:focus {
  box-shadow: inset 0 0 0 1px #2c2d30;
}
:root[data-theme="light"] #editor:focus {
  box-shadow: inset 0 0 0 1px #c9ced5;
}

/* Context Menu */
.context-menu {
  position: fixed;
  background: #26282b;
  border: 1px solid var(--border);
  padding: 4px 0;
  list-style: none;
  margin: 0;
  min-width: 160px;
  z-index: 10000;
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,.4);
  transition: background .25s, border-color .25s;
}
:root[data-theme="light"] .context-menu {
  background: #ffffff;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
}

.context-menu li {
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
  transition: background .15s;
}

.context-menu li:hover {
  background: var(--hover);
  color: #fff;
}
:root[data-theme="light"] .context-menu li:hover {
  color: var(--text);
}

.context-menu li.danger:hover {
  background: var(--accent);
  color: #fff;
}

.hidden {
  display: none !important;
}

/* Status Bar */
#status-bar {
  height: 24px;
  background: #18191b;
  border-top: 1px solid var(--border);
  display: flex;
  font-size: 11px;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  color: var(--text-dim);
  transition: background .25s, border-color .25s, color .25s;
}
:root[data-theme="light"] #status-bar {
  background: #eceef1;
}

#status-left span,
#status-right span {
  margin-right: 14px;
}

#status-changed.saved {
  color: #5cb85c;
}
#status-changed.dirty {
  color: var(--accent);
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: #1c1d1f;
}
:root[data-theme="light"] ::-webkit-scrollbar-track {
  background: #e2e5e9;
}
::-webkit-scrollbar-thumb {
  background: #303236;
  border-radius: 5px;
}
:root[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: #b6bbc2;
}
::-webkit-scrollbar-thumb:hover {
  background: #3a3d42;
}
:root[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: #9fa5ad;
}

/* Inputs / dialogs */
input, button, textarea {
  font-family: var(--font-stack);
}

/* About */
.about {
  padding: 10px;
  font-size: 13px;
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 860px) {
  #side-bar {
    width: 220px;
  }
  .tree-item {
    max-width: 180px;
  }
  #project-name {
    font-size: 12px;
  }
}

.github-auth-box {
  border: 1px solid var(--border);
  background: var(--bg-alt2);
  padding: 8px 10px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  margin-bottom: 10px;
}

.github-auth-box.authenticated {
  border-color: var(--accent);
}

.github-auth-actions button,
.github-push-actions button {
  background: #2f3136;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  margin-right: 6px;
  margin-bottom: 4px;
  transition: background .2s, color .2s, border-color .2s;
}
.github-auth-actions button:hover,
.github-push-actions button:hover {
  color: var(--text);
  border-color: var(--accent);
}
:root[data-theme="light"] .github-auth-actions button,
:root[data-theme="light"] .github-push-actions button {
  background: #e1e4e9;
}

.github-user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}
.github-user img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.github-push-box {
  border: 1px solid var(--border);
  background: var(--bg-alt2);
  padding: 8px 10px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
}

.github-push-box select,
.github-push-box input,
.github-auth-box input {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px;
  border-radius: var(--radius);
  font-size: 12px;
  transition: background .25s, color .25s, border-color .25s;
}
.github-push-box input:focus,
.github-auth-box input:focus,
.github-push-box select:focus {
  outline: 1px solid var(--accent);
}

.github-inline {
  display: flex;
  gap: 8px;
}

.github-inline > * {
  flex: 1;
}

.github-warning {
  font-size: 11px;
  color: var(--accent);
  line-height: 1.4;
}

.github-small-note {
  font-size: 11px;
  color: var(--text-dim);
}

.github-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.github-badge {
  display: inline-block;
  background: var(--accent);
  padding: 2px 6px;
  border-radius: 12px;
  font-size: 10px;
  color: #fff;
  margin-left: 6px;
}

.github-log-section-title {
  font-weight: 600;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .5px;
}

.tree-item.folder + .children { display: none; }
.tree-item.folder.expanded + .children { display: block; }