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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242836;
  --border: #2e3345;
  --text: #e4e6ed;
  --text2: #9399ad;
  --accent: #5b8def;
  --accent-hover: #4a7de0;
  --danger: #e55c6c;
  --danger-hover: #d44a5a;
  --success: #4caf7d;
  --radius: 8px;
  --max-width: 600px;
}

html,
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px;
  min-height: 100vh;
}

button,
a.btn-primary,
a.btn-icon {
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
  border: none;
  border-radius: var(--radius);
  padding: 10px 18px;
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Buttons */
.btn-primary {
  background: var(--accent);
  color: white;
}

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

.btn-icon {
  background: var(--surface2);
  color: var(--text);
  width: 46px;
  height: 46px;
  padding: 0;
  font-size: 20px;
}

.btn-icon:hover {
  background: var(--border);
}

.num-stepper-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text2);
  border-radius: var(--radius);
  padding: 0;
}

.num-stepper-btn:hover {
  color: var(--text);
  background: var(--surface2);
}

input,
select {
  font-family: inherit;
  font-size: 15px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  width: 100%;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
}

/* Layout helpers */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 8px;
}

.header h1 {
  font-size: 20px;
  font-weight: 600;
  flex: 1;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

.card-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-title {
  font-size: 16px;
  font-weight: 500;
}

.card-sub {
  font-size: 13px;
  color: var(--text2);
}

.empty {
  text-align: center;
  color: var(--text2);
  padding: 48px 16px;
}

/* Settings sections */
.settings-section {
  margin-bottom: 24px;
}

.settings-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text2);
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

/* Form groups */
.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 4px;
}

.field-row {
  display: flex;
  gap: 8px;
}

/* Toggle switch */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.toggle {
  position: relative;
  width: 50px;
  height: 28px;
  cursor: pointer;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--surface2);
  border-radius: 12px;
  transition: background 0.2s;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  bottom: 3px;
  background: var(--text2);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.toggle input:checked+.toggle-slider {
  background: var(--accent);
}

.toggle input:checked+.toggle-slider::after {
  transform: translateX(22px);
  background: white;
}

/* Runner specific */
.runner-current {
  text-align: center;
  padding: 32px 16px;
}

.runner-timer {
  font-size: 72px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  margin: 16px 0;
}

.runner-label {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
}

.runner-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.runner-controls button {
  width: 64px;
  height: 64px;
  font-size: 26px;
  border-radius: 50%;
}

.runner-steps {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.runner-step {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text2);
}

.runner-step.active {
  background: var(--surface2);
  color: var(--text);
  font-weight: 500;
}

.runner-step.done {
  text-decoration: line-through;
  opacity: 0.4;
}

/* Editor */
.editor-node {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  background: var(--surface);
}

.editor-node-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  cursor: grab;
}

.editor-node-header:active {
  cursor: grabbing;
}

.editor-node-header>.btn-icon {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border);
  width: 34px;
  height: 34px;
  font-size: 16px;
}

.editor-node-header>.btn-icon:hover {
  color: var(--text);
  background: var(--surface2);
}

.editor-node-header>.btn-icon[aria-pressed] {
  opacity: 0.4;
}

.editor-node-header>.btn-icon[aria-pressed]:hover {
  opacity: 0.7;
  border-color: var(--text2);
}

.editor-node-header>.btn-icon[aria-pressed='true'] {
  opacity: 1;
  color: var(--accent);
  border-color: var(--accent);
}

.editor-node-header>.btn-icon[aria-pressed='true']:hover {
  opacity: 1;
}

.editor-node-body {
  padding: 4px 12px 12px 24px;
}

.editor-block-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--accent);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
}

.editor-step-tag {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--success);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
}

.editor-block-total {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
}

.editor-repeat-label {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.editor-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.drag-over {
  border-color: var(--accent);
  background: var(--surface2);
}

.inline-input {
  background: transparent;
  border: 1px solid transparent;
  padding: 2px 4px;
  font-size: inherit;
  color: inherit;
  width: auto;
}

.inline-input:hover {
  border-color: var(--border);
}

.inline-input:focus {
  border-color: var(--accent);
  background: var(--surface);
}

.duration-input {
  width: 3ch;
  min-width: 3ch;
  padding: 2px 4px;
  text-align: center;
}

.repeats-input {
  width: 3ch;
  min-width: 3ch;
  padding: 2px 4px;
  text-align: center;
}

/* Number stepper: -[value]+ */
.num-stepper {
  display: inline-flex;
  align-items: center;
  gap: 0;
  position: relative;
}

.num-stepper-suffix {
  position: absolute;
  right: 36px;
  font-size: 14px;
  color: var(--text2);
  pointer-events: none;
}

.num-stepper-unit {
  pointer-events: auto;
  position: static;
  font-weight: 600;
  color: var(--accent);
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  margin: 0 4px;
  border: 1px solid var(--border);
  background: var(--surface2);
  text-align: center;
  font-size: 14px;
}

.num-stepper-unit:hover {
  background: var(--border);
}

.num-stepper input {
  -moz-appearance: textfield;
  appearance: textfield;
}

.num-stepper input::-webkit-inner-spin-button,
.num-stepper input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Metadata */
.editor-meta {
  font-size: 12px;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.8;
}

.editor-meta-label {
  display: inline-block;
  width: 70px;
  color: var(--text);
  font-weight: 600;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--danger);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  opacity: 1;
  transition: opacity 0.3s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
}

.toast-close {
  background: none;
  border: none;
  color: white;
  font-size: 14px;
  cursor: pointer;
  padding: 0 2px;
  opacity: 0.7;
  line-height: 1;
}

.toast-close:hover {
  opacity: 1;
}

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

.toast-out {
  opacity: 0;
}

.u-icon {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-style: normal;
  line-height: 1;
  display: inline-block;
  vertical-align: middle;
}