:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-hover: #f3f4f6;
  --border: #e2e4e8;
  --text: #1a1d22;
  --muted: #6b7280;
  --accent: #0078d4;
  --accent-hover: #006abc;
  --accent-soft: #e8f1fb;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --danger-border: #fda29b;
  --source-wrike-bg: #ecfdf5;
  --source-wrike-fg: #047857;
  --source-manual-bg: #eff6ff;
  --source-manual-fg: #1d4ed8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 0 0 1px rgba(15, 23, 42, 0.06);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171c;
    --surface: #1f2227;
    --surface-hover: #2a2d33;
    --border: #34373d;
    --text: #e6e8eb;
    --muted: #9ca3af;
    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --accent-soft: #1e3a5f;
    --danger: #fca5a5;
    --danger-bg: #2a1416;
    --danger-border: #7f1d1d;
    --source-wrike-bg: #053826;
    --source-wrike-fg: #6ee7b7;
    --source-manual-bg: #172a4a;
    --source-manual-fg: #93c5fd;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.05);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body {
  max-width: 720px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) 16px env(safe-area-inset-bottom);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 12px;
}

header h1 {
  font-size: 20px;
  margin: 0;
}

.account {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.account-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  border: none;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-transform: uppercase;
}

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

.account-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.14);
  padding: 12px;
  width: max-content;
  min-width: 200px;
  max-width: calc(100vw - 24px);
  z-index: 10;
}

.account-menu .account-email {
  font-size: 13px;
  color: var(--muted);
  overflow-wrap: anywhere;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.account-menu button {
  width: 100%;
}

button {
  font: inherit;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

button:hover {
  background: var(--surface-hover);
}

#composer {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

#composer textarea {
  width: 100%;
  border: none;
  resize: vertical;
  font: inherit;
  outline: none;
  padding: 4px 0;
  background: transparent;
  color: var(--text);
}

.composer-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.composer-actions input {
  flex: 1 1 140px;
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  outline: none;
  background: var(--bg);
  color: var(--text);
}

.composer-actions input::placeholder,
#composer textarea::placeholder {
  color: var(--muted);
}

.composer-actions input:focus {
  border-color: var(--accent);
}

#note-submit {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

#note-submit:hover {
  background: var(--accent-hover);
}

.tabs-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.tabs {
  display: flex;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.icon-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--muted);
}

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

.icon-btn.spinning svg {
  animation: icon-spin 0.6s linear;
}

@keyframes icon-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  flex-shrink: 0;
  font-size: 14px;
  padding: 6px 14px;
  border-radius: 999px;
}

.tab[aria-selected="true"] {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  color: var(--accent);
}

.followups {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.followup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow);
}

.followup.is-pinned {
  border-color: var(--accent);
}

.followup.is-ranked {
  border-left: 3px solid var(--accent);
  padding-left: 10px;
}

.followup-ghost {
  opacity: 0.4;
  background: var(--accent-soft);
}

.followup-chosen {
  cursor: grabbing;
}

.pin-glyph {
  display: inline-flex;
  align-items: center;
  color: var(--accent);
}

.rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 600;
}

.pin-btn[aria-pressed="true"],
.followup.is-pinned .pin-btn {
  color: var(--accent);
  border-color: var(--accent);
}

.followup .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.source {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface-hover);
}

.source.wrike  { background: var(--source-wrike-bg);  color: var(--source-wrike-fg); }
.source.manual { background: var(--source-manual-bg); color: var(--source-manual-fg); }

.kind {
  font-size: 11px;
  color: var(--muted);
}

.followup .body .parent {
  font-weight: 700;
  margin-bottom: 4px;
}

.followup .body .parent a {
  color: var(--accent);
  text-decoration: none;
}

.followup .body .parent a:hover {
  text-decoration: underline;
}

.followup .body .text {
  margin: 6px 0 0;
  white-space: pre-wrap;
}

.followup .body .text .author {
  font-weight: 700;
  color: var(--text);
}

.followup .actions {
  margin-top: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.followup .actions button {
  font-size: 13px;
  padding: 4px 10px;
}

#load-more:not([hidden]) {
  display: block;
  margin: 16px auto;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 32px 0;
}

.error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 12px;
  font-size: 14px;
}

.login-prompt {
  text-align: center;
  padding: 64px 16px;
}

.login-prompt h2 {
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
  margin: 0 0 16px;
}

.login-prompt button {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  padding: 10px 24px;
  font-size: 16px;
}