:root {
  color-scheme: dark;
  --bg: #0b1020;
  --surface: #141b31;
  --surface-2: #1c2543;
  --border: #2a3558;
  --text: #eef2ff;
  --muted: #9aa6cc;
  --accent: #6ea8fe;
  --accent-strong: #4f8ef7;
  --success: #4ade80;
  --warning: #fbbf24;
  --danger: #f87171;
  --info: #38bdf8;
  --radius: 14px;
  --tap: 44px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  min-height: 100vh;
  padding-bottom: var(--safe-bottom);
}

.shell {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100vh;
  padding-top: var(--safe-top);
}

.app-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.app-title {
  font-size: 18px;
  font-weight: 650;
  margin: 0;
  flex: 1;
}

.app-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button,
.text-button {
  min-height: var(--tap);
  min-width: var(--tap);
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.text-button {
  min-width: auto;
  font-size: 14px;
}

.icon-button:focus-visible,
.text-button:focus-visible,
.primary-button:focus-visible,
.select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.connection-state {
  font-size: 12px;
  color: var(--muted);
  padding: 0 6px;
}

.connection-state.is-stale {
  color: var(--warning);
}

.connection-state.is-error {
  color: var(--danger);
}

.app-main {
  padding: 14px;
}

.view[hidden] {
  display: none;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
}

.card h2,
.card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.auto-refresh-label {
  font-size: 14px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  font-size: 14px;
}

.login-card {
  max-width: 400px;
  margin: 24px auto;
}

.login-card label {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin: 12px 0 4px;
}

.login-card input {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 12px;
  font-size: 16px;
}

.primary-button {
  width: 100%;
  min-height: var(--tap);
  margin-top: 18px;
  background: var(--accent-strong);
  color: #081026;
  font-weight: 650;
  font-size: 16px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}

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

.error-text {
  color: var(--danger);
  font-size: 14px;
  margin: 10px 0 0;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 32px 16px;
}

.phase-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.phase-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}

.phase-card:active {
  background: var(--surface-2);
}

.phase-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.phase-card-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}

.phase-card-title {
  font-size: 17px;
  font-weight: 650;
  margin: 0;
}

.phase-card-meta {
  margin-top: 8px;
  font-size: 14px;
  color: var(--muted);
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
}

.badge.active {
  color: #081026;
  background: var(--info);
  border-color: var(--info);
}

.badge.success {
  background: var(--success);
  color: #081026;
  border-color: var(--success);
}

.badge.warning {
  background: var(--warning);
  color: #081026;
  border-color: var(--warning);
}

.badge.danger {
  background: var(--danger);
  color: #081026;
  border-color: var(--danger);
}

.badge.pending {
  background: var(--accent-strong);
  color: #081026;
  border-color: var(--accent-strong);
}

.kv {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  font-size: 14px;
  margin-top: 10px;
}

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

.kv dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.timer {
  font-variant-numeric: tabular-nums;
}

.detail-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.detail-head h2 {
  font-size: 20px;
  margin: 0 0 4px;
}

.detail-head .repo {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 10px;
}

.section-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 2px 0 8px;
}

.heartbeat {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.heartbeat-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
}

.heartbeat-dot.fresh { background: var(--success); }
.heartbeat-dot.stale { background: var(--warning); }
.heartbeat-dot.unknown { background: var(--info); }
.heartbeat-dot.inactive { background: var(--muted); }

.task-card {
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 10px;
}

.task-card:first-of-type {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.task-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.task-summary {
  font-weight: 600;
  margin: 0;
}

.task-state {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.error-block {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.45);
  border-radius: 10px;
  padding: 10px;
  font-size: 14px;
  margin-top: 10px;
}

.error-block pre {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 6px 0 0;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
}

.event-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.event-item {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.event-item:last-child {
  border-bottom: none;
}

.event-kind {
  color: var(--muted);
  min-width: 96px;
  font-size: 12px;
  word-break: break-word;
}

.event-message {
  flex: 1;
  word-break: break-word;
}

.event-time {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.load-older {
  width: 100%;
  margin-top: 8px;
}

.new-phase-button {
  width: 100%;
  margin-bottom: 12px;
}

.plan-textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 12px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
  min-height: 160px;
}

.propose-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.secondary-button {
  flex: 1;
  min-height: var(--tap);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  padding: 0 14px;
}

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

.secondary-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.propose-actions .primary-button {
  flex: 1;
  margin-top: 0;
}

.action-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.action-button {
  flex: 1;
  min-width: 140px;
  margin-top: 0;
}

.copy-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.copy-bar .text-button {
  flex: 1;
  min-height: var(--tap);
  white-space: normal;
  text-align: center;
}

@media (min-width: 640px) {
  .app-main { padding: 20px; }
  .card { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}