:root {
  --color-background: #1e1e2e;
  --color-card: #313244;
  --color-view: #181825;
  --color-header: #252536;
  --color-border: #181825;
  --color-border-strong: #45475a;
  --color-text: #cdd6f4;
  --color-text-muted: #a6adc8;
  --color-text-dim: #6c7086;
  --color-accent: #89b4fa;
  --color-accent-hover: #b4befe;
  --color-accent-background: rgba(137, 180, 250, 0.2);
  --color-accent-background-hover: rgba(137, 180, 250, 0.3);
  --color-success: #a6e3a1;
  --color-success-background: rgba(166, 227, 161, 0.15);
  --color-error: #f38ba8;
  --color-error-background: rgba(243, 139, 168, 0.15);
  --radius-small: 6px;
  --radius-large: 12px;
}

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

body {
  font-family: Cantarell, -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
  padding: 24px 16px;
  line-height: 1.5;
}

.container {
  max-width: 550px;
  margin: 0 auto;
}

h1 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

h2 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.header-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.header-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: normal;
}

.header-actions {
  display: flex;
  gap: 8px;
  position: relative;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--color-card);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.icon-btn:hover {
  background: var(--color-header);
  color: var(--color-text);
}

.popover {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--color-card);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-large);
  padding: 14px 16px;
  max-width: 550px;
  min-width: 450px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-text-muted);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 100;
  display: none;
}

.popover.visible {
  display: block;
}

.popover-text {
  padding: 4px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

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

.popover-text small {
  opacity: 0.7;
  margin-left: 1em;
}

.popover-text kbd {
  display: inline-block;
  padding: 2px 6px;
  background: var(--color-view);
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  font-size: 11px;
  font-family: monospace;
  color: var(--color-text);
}

.popover-item {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
}

.popover-item:hover {
  background: var(--color-header);
}

.muted-emoji {
  filter: grayscale(1);
  opacity: 0.5;
}

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

.popover-item.danger:hover {
  background: var(--color-error-background);
}

.popover-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 6px 0;
}

.settings-popover {
  padding: 6px;
  min-width: 200px;
}

.help-popover {
  min-width: 500px;
  max-width: 600px;
  padding: 6px;
}

.popover-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 8px 6px;
}

.popover-note {
  font-size: 11px;
  color: var(--color-text-dim);
  padding: 6px 8px 2px;
  line-height: 1.4;
}

.popover-note a {
  color: var(--color-text-muted);
  text-decoration: underline;
}

.popover-note a:hover {
  color: var(--color-accent);
}

.theme-selector {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 8px;
  background: none;
  border: none;
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.theme-btn:hover {
  background: var(--color-header);
}

.theme-btn.selected {
  background: var(--color-accent-background);
}

.theme-preview {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 2px solid;
  flex-shrink: 0;
}

.theme-name {
  white-space: nowrap;
}

#helpPopover {
  right: 40px;
  min-width: 280px;
}

.section {
  margin-bottom: 20px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  padding: 0 4px;
}

.balance-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--color-success-background);
  color: var(--color-success);
}

.balance-badge.warning {
  background: var(--color-error-background);
  color: var(--color-error);
}

.balance-badge:empty {
  display: none;
}

.boxed-list {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  overflow: hidden;
}

.boxed-list:empty {
  display: none;
}

.boxed-list-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-large) var(--radius-large) 0 0;
}

.boxed-list-wrapper::after {
  content: '';
  position: absolute;
  bottom: 1px;
  left: 1px;
  right: 1px;
  height: 32px;
  background: linear-gradient(to bottom, transparent, var(--color-card));
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.2s;
}

.boxed-list-wrapper.expanded::after {
  opacity: 0;
}

.boxed-list.collapsible {
  max-height: 175px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-strong) transparent;
  padding-bottom: 28px;
}

.boxed-list.collapsible.expanded {
  padding-bottom: 0;
}

.boxed-list.collapsible::-webkit-scrollbar {
  width: 8px;
}

.boxed-list.collapsible::-webkit-scrollbar-track {
  background: transparent;
}

.boxed-list.collapsible::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: content-box;
}

.boxed-list.collapsible::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-dim);
  border: 2px solid transparent;
  background-clip: content-box;
}

.boxed-list.expanded {
  max-height: none;
}

.boxed-list.collapsible:not(:empty),
#presetsList:not(:empty) {
  border-radius: var(--radius-large) var(--radius-large) 0 0;
}

.boxed-list:empty + .expand-toggle + .add-row-container,
.boxed-list:empty + .add-row-container {
  border-radius: var(--radius-large);
  border-top: 1px solid var(--color-border);
  margin-top: 0;
}

.boxed-list-row {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.15s;
}

.boxed-list-row:last-child {
  border-bottom: none;
}

.boxed-list-row:hover {
  background: rgba(255, 255, 255, 0.02);
}

.boxed-list-row.recommended {
  background: var(--color-accent-background);
}

.boxed-list-row.recommended:hover {
  background: var(--color-accent-background-hover);
}

.expand-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  color: var(--color-text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  border-radius: 0;
  margin-top: -1px;
}

.expand-toggle:hover {
  color: var(--color-text-muted);
}

#historyExpandToggle {
  border-radius: 0 0 var(--radius-large) var(--radius-large);
}

.add-row-container {
  margin-top: -1px;
  border-radius: 0 0 var(--radius-large) var(--radius-large);
  border: 1px solid var(--color-border);
}

.kbd {
  display: inline-block;
  padding: 2px 6px;
  background: var(--color-view);
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  font-size: 11px;
  font-family: monospace;
  color: var(--color-text-muted);
  margin-left: 4px;
}

.recommendation-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  padding: 16px;
  margin-bottom: 20px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.recommendation-card.success {
  border-color: var(--color-success);
  box-shadow: 0 0 20px var(--color-success-background);
}

.recommendation-card.empty {
  text-align: center;
  padding: 40px 24px;
  color: var(--color-text-muted);
}

.recommendation-card.empty .empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.8;
}

.recommendation-card.empty .empty-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.recommendation-card.empty .empty-subtitle {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 280px;
  margin: 0 auto;
}

.recommendation-target {
  margin-bottom: 16px;
}

.recommendation-label {
  font-size: 11px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
  margin-bottom: 4px;
}

.recommendation-main {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 2px;
}

.recommendation-main .project-code {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.recommendation-name {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.recommendation-target .clickable {
  cursor: pointer;
}

.override-link {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-dim);
  cursor: pointer;
  transition: color 0.15s;
  margin-top: 10px;
}

.override-link:hover {
  color: var(--color-accent);
}

.time-selector {
  display: flex;
  width: 100%;
  margin-bottom: 12px;
  position: relative;
}

.time-selector > *:not(.custom-popover) {
  flex: 1 1 0%;
  min-width: 0;
  box-sizing: border-box;
}

.time-selector .custom-trigger {
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  border-left: none;
}

.custom-popover {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-header);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  padding: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 100;
}

.custom-popover.visible {
  display: block;
}

.custom-popover input {
  width: 160px;
  padding: 8px 10px;
  background: var(--color-view);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text);
  font-size: 14px;
  text-align: center;
}

.custom-popover input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.custom-popover input::placeholder {
  color: var(--color-text-dim);
  font-size: 12px;
}


.duration-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 10px;
  background: var(--color-view);
  border: 1px solid var(--color-border);
  border-radius: 0;
  color: var(--color-text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
  box-sizing: border-box;
}

.time-selector > .duration-btn:first-child {
  border-radius: var(--radius-small) 0 0 var(--radius-small);
}

.time-selector > .duration-btn:not(:first-child) {
  border-left: none;
}


.duration-btn .kbd {
  padding: 1px 4px;
  font-size: 10px;
}

.duration-btn:hover {
  background: var(--color-header);
}

.duration-btn.selected {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  position: relative;
  z-index: 1;
}


.confirm-btn {
  width: 100%;
  padding: 10px 16px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
}

.confirm-btn:hover {
  background: var(--color-accent-hover);
}

.confirm-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.override-section {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  display: none;
}

.override-section.visible {
  display: block;
}

.override-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.override-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--color-view);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  cursor: pointer;
  transition: all 0.15s;
}

.override-item:hover {
  background: var(--color-header);
  border-color: var(--color-border-strong);
}

.override-item.selected {
  background: var(--color-accent-background);
  border-color: var(--color-accent);
}

.override-item .info {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.override-item .name {
  font-size: 13px;
  font-weight: 500;
}

.override-item .code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 11px;
  color: var(--color-text-dim);
}

.override-item .time {
  font-size: 12px;
  color: var(--color-text-muted);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.project-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.project-row.just-booked {
  animation: flash-success 0.5s ease;
}

@keyframes flash-success {
  0% { background: transparent; }
  50% { background: var(--color-success-background); }
  100% { background: transparent; }
}

.project-row .recommended-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.project-row .recommended-dot.hidden {
  visibility: hidden;
}

.project-row .project-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.project-row .leadee-name,
.project-row .project-code {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-row .leadee-name {
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  padding: 1px 4px;
  margin: -1px -4px;
  border-radius: var(--radius-small);
  transition: background 0.15s;
}

.project-row .leadee-name:hover {
  background: var(--color-view);
}

.project-row .project-code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 11px;
  color: var(--color-accent);
  cursor: pointer;
  padding: 1px 4px;
  margin: -1px -4px;
  border-radius: var(--radius-small);
  transition: background 0.15s;
}

.project-row .project-code:hover {
  background: var(--color-view);
}

.project-row .edit-input {
  font-size: 13px;
  padding: 2px 6px;
  background: var(--color-view);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-small);
  color: var(--color-text);
  outline: none;
  width: 100px;
}

.project-row .edit-input.code-input {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 11px;
}

.project-row .project-time {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.project-row .last-booked {
  font-size: 11px;
  color: var(--color-text-dim);
  min-width: 45px;
  text-align: left;
}

.project-row .time-bar {
  width: 80px;
  height: 6px;
  background: var(--color-view);
  border-radius: 3px;
  overflow: hidden;
}

.project-row .time-bar-fill {
  height: 100%;
  background: var(--color-accent);
  border-radius: 3px;
  transition: width 0.3s;
}

.boxed-list-row.recommended .project-row .time-bar-fill {
  background: var(--color-accent-hover);
}

.project-row .time-text {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
  min-width: 40px;
  text-align: right;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.delete-btn {
  padding: 4px 8px;
  background: transparent;
  border: none;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-size: 12px;
  opacity: 0;
  color: var(--color-text-dim);
  transition: all 0.15s;
}

.boxed-list-row:hover .delete-btn {
  opacity: 1;
}

.delete-btn:hover {
  color: var(--color-error);
}

.add-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-dim);
  cursor: pointer;
  font-size: 13px;
  width: 100%;
}

.add-row:hover {
  color: var(--color-text-muted);
}

.add-row .add-icon {
  width: 6px;
  height: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--color-text-dim);
  margin-left: 0;
}

.add-row:hover .add-icon {
  color: var(--color-accent);
}

.add-row-expanded {
  display: flex;
  gap: 8px;
  flex: 1;
  align-items: center;
}

.add-row-expanded input {
  flex: 1;
  padding: 6px 10px;
  background: var(--color-view);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  font-size: 13px;
  color: var(--color-text);
}

.add-row-expanded input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.add-row-expanded input::placeholder {
  color: var(--color-text-dim);
}

.add-row-expanded input.code-input {
  max-width: 100px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.btn-secondary {
  padding: 6px 12px;
  background: var(--color-view);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: var(--color-header);
  color: var(--color-text);
}

.btn-secondary.btn-danger:hover {
  background: var(--color-error-background);
  border-color: var(--color-error);
  color: var(--color-error);
}

.btn-primary {
  padding: 6px 14px;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-small);
  color: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.history-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  width: 100%;
}

.history-row .history-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.history-row .history-duration {
  font-weight: 600;
  color: var(--color-text);
}

.history-row .history-separator {
  color: var(--color-text-dim);
  font-size: 11px;
}

.history-row .history-target {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.history-row .history-leadee {
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: 13px;
}

.history-row .history-project {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  color: var(--color-accent);
  font-size: 11px;
}

.history-row .history-time {
  color: var(--color-text-dim);
  font-size: 12px;
  flex: 1;
}

.history-row .btn-secondary {
  margin-left: auto;
}

.preset-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.preset-row .preset-template {
  flex: 1;
  font-size: 13px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preset-row .btn-secondary {
  margin-left: auto;
}

.preset-row .delete-btn {
  opacity: 0;
  margin-left: 0;
}

.boxed-list-row:hover .preset-row .delete-btn {
  opacity: 1;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-view);
  color: #fff;
  border: 1px solid var(--color-border-strong);
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.25s;
  pointer-events: none;
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: var(--color-success);
  background: var(--color-success);
}

.validation-error {
  color: var(--color-error);
  font-size: 13px;
  margin-top: -12px;
  margin-bottom: 14px;
  display: none;
}

.validation-error.visible {
  display: block;
}

@media (max-width: 480px) {
  body {
    padding: 16px 12px;
  }

  h1 {
    font-size: 1.1rem;
  }

  .recommendation-main .project-code {
    font-size: 1.2rem;
  }

  .time-selector {
    flex-wrap: wrap;
  }

  .duration-btn {
    padding: 6px 6px;
    font-size: 12px;
  }

  .delete-btn {
    opacity: 1;
  }

  .kbd {
    display: none;
  }
}