/* Mail Tracker dashboard — dark theme, intentionally distinct from InboxOS
 * so the standalone tracker reads as its own product. Indigo accent (vs
 * InboxOS's blue) is the easiest visual cue. */
:root {
  --bg:       #0a0e1a;
  --bg-2:     #131826;
  --bg-3:     #1a2030;
  --border:   #1f2937;
  --text:     #e5e7eb;
  --text-2:   #94a3b8;
  --text-3:   #64748b;
  --accent:   #6366f1;
  --accent-h: #818cf8;
  --ok:       #10b981;
  --err:      #ef4444;
  --warn:     #f59e0b;
  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 8px;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 13px;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.hidden { display: none !important; }

/* ── Loading splash (brief — auth probe redirects on 401) ─────────────── */
#loading-splash {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.splash-card {
  text-align: center;
  color: var(--text-2);
}
.splash-spinner {
  font-size: 40px;
  animation: splash-pulse 1.4s ease-in-out infinite;
}
@keyframes splash-pulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 1; }
}
.splash-card p { margin-top: 12px; font-size: 13px; }

/* ── "Signed in as" chip in header ─────────────────────────────────────── */
.who {
  font-size: 11px;
  color: var(--text-3);
  margin-right: 8px;
}

/* Legacy login card styling — kept so a stale cached index.html still
   renders gracefully during the rollout. */
.login-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.login-card h1 { margin-bottom: 6px; font-size: 22px; font-weight: 600; letter-spacing: -0.3px; }
.login-card p { color: var(--text-2); margin-bottom: 18px; line-height: 1.5; }
.login-card label { display: block; margin-bottom: 12px; }
.login-card label span {
  display: block;
  font-size: 11px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 5px;
}
.login-card input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 13px;
}
.login-card input[type="password"]:focus {
  outline: none;
  border-color: var(--accent);
}
.login-card button {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 13px;
  transition: background 120ms ease;
}
.login-card button:hover { background: var(--accent-h); }
.login-card .hint {
  margin-top: 16px;
  font-size: 11px;
  color: var(--text-3);
  text-align: center;
  line-height: 1.5;
}
.error { color: var(--err); margin-top: 8px; font-size: 12px; }

/* ── Main shell ────────────────────────────────────────────────────────── */
#main-view {
  display: grid;
  grid-template-rows: 50px 1fr;
  height: 100vh;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
header h1 { font-size: 15px; font-weight: 600; letter-spacing: -0.1px; }
.header-actions { display: flex; gap: 8px; }
.ghost {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-2);
  font-size: 12px;
}
.ghost:hover { background: var(--bg-3); color: var(--text); }

main {
  display: grid;
  grid-template-columns: 320px 1fr;
  overflow: hidden;
}

/* ── Send list (left rail) ─────────────────────────────────────────────── */
aside {
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}
.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-2);
  z-index: 1;
}
.list-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-2);
  font-weight: 600;
}
.list-count {
  font-size: 11px;
  color: var(--text-3);
  font-family: ui-monospace, "JetBrains Mono", monospace;
}

.send-row {
  padding: 12px 16px 12px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background 80ms ease;
}
.send-row:hover { background: var(--bg-3); }
.send-row.active {
  background: var(--bg-3);
  border-left-color: var(--accent);
}
.send-row-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.send-row-recipient {
  color: var(--text);
  font-weight: 500;
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.send-row-time {
  color: var(--text-3);
  font-size: 11px;
  flex-shrink: 0;
}
.send-row-subject {
  font-size: 12px;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 6px;
}
.send-row-stats {
  display: flex;
  gap: 10px;
  font-size: 11px;
  font-family: ui-monospace, "JetBrains Mono", monospace;
}
.send-row-stats .open { color: var(--ok); }
.send-row-stats .click { color: var(--accent); }
.send-row-stats .none { color: var(--text-3); }

/* ── Detail (right pane) ───────────────────────────────────────────────── */
section#detail-pane {
  overflow-y: auto;
  padding: 24px 28px 40px;
}
.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-3);
  font-style: italic;
  text-align: center;
}
.empty p { line-height: 1.6; }
.empty p.hint { font-size: 11.5px; color: var(--text-3); margin-top: 8px; }

.detail-header {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.detail-subject {
  font-size: 17px;
  margin-bottom: 6px;
  font-weight: 500;
  letter-spacing: -0.2px;
}
.detail-meta {
  font-size: 12px;
  color: var(--text-2);
}
.detail-meta strong { color: var(--text); font-weight: 500; }

.detail-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 12px 16px;
}
.stat-card-label {
  font-size: 10.5px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  font-weight: 600;
}
.stat-card-value {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.1;
}
.stat-card-value.open { color: var(--ok); }
.stat-card-value.click { color: var(--accent); }
.stat-card-value.muted { color: var(--text-3); }
.stat-card-sub {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 4px;
}

.cache-banner {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(99, 102, 241, 0.06);
  border-left: 2px solid rgba(99, 102, 241, 0.45);
  border-radius: var(--r-sm);
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.55;
  margin-bottom: 20px;
}
.cache-banner-icon {
  color: var(--accent);
  font-size: 13px;
  flex-shrink: 0;
}
.cache-banner strong { color: var(--text); font-weight: 600; }

.section-title {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-2);
  margin: 22px 0 10px;
  font-weight: 600;
}

.link-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dotted var(--border);
  font-size: 12px;
  gap: 12px;
  align-items: center;
}
.link-row:last-child { border-bottom: none; }
.link-url {
  font-family: ui-monospace, "JetBrains Mono", monospace;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  font-size: 11px;
}
.link-clicks {
  color: var(--text-3);
  flex-shrink: 0;
  font-size: 11px;
  font-family: ui-monospace, monospace;
}

.event-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  font-size: 12px;
}
.event-icon { font-size: 13px; flex-shrink: 0; }
.event-time {
  font-family: ui-monospace, "JetBrains Mono", monospace;
  color: var(--text-3);
  flex-shrink: 0;
  min-width: 72px;
  font-size: 11px;
}
.event-hint { color: var(--text-2); flex: 1; }
.event-badge {
  padding: 2px 7px;
  border-radius: 99px;
  font-size: 10px;
  font-family: ui-monospace, "JetBrains Mono", monospace;
  white-space: nowrap;
}
.event-badge.cls-confirmed    { background: rgba(16,185,129,0.15); color: var(--ok); }
.event-badge.cls-google_proxy { background: rgba(16,185,129,0.10); color: var(--ok); }
.event-badge.cls-prefetch     { background: rgba(245,158,11,0.15); color: var(--warn); }
.event-badge.cls-bot_scanner  { background: rgba(100,116,139,0.15); color: var(--text-3); }
.event-badge.cls-unknown      { background: rgba(100,116,139,0.10); color: var(--text-3); }

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 720px) {
  main { grid-template-columns: 1fr; }
  aside { display: none; }
  /* TODO: mobile-friendly back-button flow */
}