:root {
  --bg: #0b1020;
  --bg-2: #111833;
  --card: rgba(255, 255, 255, 0.045);
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #eef2ff;
  --muted: #8b93b5;
  --faint: #5a6288;
  --accent: #6c8cff;
  --accent-2: #9b6cff;
  --radius: 22px;

  --c-scheduled: #6c8cff;
  --c-delayed: #ffb547;
  --c-departed: #38d6ff;
  --c-airborne: #a77bff;
  --c-taxiing: #2ec4b6;
  --c-landed: #35d39a;
  --c-completed: #8b93b5;
  --c-cancelled: #ff5c7a;
  --c-diverted: #ff8a47;
  --c-incident: #ff5c7a;
  --c-unknown: #8b93b5;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100dvh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(108, 140, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at -20% 10%, rgba(155, 108, 255, 0.14), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  padding-bottom: env(safe-area-inset-bottom);
}

a { color: var(--accent); }

svg.lucide { width: 18px; height: 18px; stroke-width: 2; flex-shrink: 0; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top)) 18px 14px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(11, 16, 32, 0.72);
  border-bottom: 1px solid var(--card-border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px rgba(108, 140, 255, 0.35);
}
.brand-icon svg.lucide { transform: rotate(-45deg); }
h1 { margin: 0; font-size: 1.1rem; letter-spacing: -0.01em; }
.subtitle { margin: 2px 0 0; color: var(--muted); font-size: 0.78rem; }

.icon-btn {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 12px;
  border: 1px solid var(--card-border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.09); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn.small { width: 34px; height: 34px; border-radius: 10px; }
.icon-btn.small svg.lucide { width: 16px; height: 16px; }
.spinning svg.lucide { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

main { padding: 16px; max-width: 1400px; margin: 0 auto; }

/* ---------- Add form ---------- */
.add-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-bottom: 18px;
}
.field {
  display: flex; align-items: center; gap: 10px;
  min-width: 0;
  padding: 0 14px;
  height: 50px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--muted);
  transition: border-color 0.2s;
}
.field:focus-within { border-color: var(--accent); }
.field-code { grid-column: 1 / -1; }
.field input {
  flex: 1; min-width: 0;
  background: none; border: 0; outline: 0;
  color: var(--text);
  font: inherit; font-size: 1rem;
  color-scheme: dark;
}
.field-code input { text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; }
.field-code input::placeholder { text-transform: none; letter-spacing: 0; font-weight: 400; }
.primary-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 50px; padding: 0 18px;
  border: 0; border-radius: 16px;
  font: inherit; font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px rgba(108, 140, 255, 0.3);
  cursor: pointer;
}
.primary-btn:active { transform: scale(0.97); }

/* The hidden attribute must win over display rules like "display: flex". */
[hidden] { display: none !important; }

.demo-banner {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 16px; padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.85rem;
  color: var(--c-delayed);
  background: rgba(255, 181, 71, 0.1);
  border: 1px solid rgba(255, 181, 71, 0.25);
}

/* ---------- Cards ---------- */
.cards { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }

.card {
  --status: var(--c-unknown);
  position: relative;
  overflow: hidden;
  padding: 18px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025));
  border: 1px solid var(--card-border);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  animation: rise 0.35s ease both;
}
.card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--status);
  opacity: 0.9;
}
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }

.card[data-phase="scheduled"] { --status: var(--c-scheduled); }
.card[data-phase="delayed"] { --status: var(--c-delayed); }
.card[data-phase="departed"] { --status: var(--c-departed); }
.card[data-phase="airborne"] { --status: var(--c-airborne); }
.card[data-phase="taxiing"] { --status: var(--c-taxiing); }
.card[data-phase="landed"] { --status: var(--c-landed); }
.card[data-phase="completed"] { --status: var(--c-completed); }
.card[data-phase="cancelled"] { --status: var(--c-cancelled); }
.card[data-phase="diverted"] { --status: var(--c-diverted); }
.card[data-phase="incident"] { --status: var(--c-incident); }

.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.flight-id { display: flex; align-items: center; gap: 12px; min-width: 0; }
.airline-badge {
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 14px;
  font-weight: 800; font-size: 0.9rem; letter-spacing: 0.02em;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--card-border);
}
.flight-no { margin: 0; font-size: 1.25rem; font-weight: 750; letter-spacing: -0.01em; }
.roster-badge { display: inline-flex; align-items: center; gap: 4px; margin-right: 8px; padding: 1px 7px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); vertical-align: 1px; }
.roster-badge svg.lucide { width: 12px; height: 12px; }
.card.roster-planned .track-line { opacity: 0.5; }
.airline-name { margin: 2px 0 0; color: var(--muted); font-size: 0.82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 0.78rem; font-weight: 650;
  white-space: nowrap;
  color: var(--status);
  background: color-mix(in srgb, var(--status) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--status) 35%, transparent);
}
.status-pill svg.lucide { width: 14px; height: 14px; }
.card[data-phase="airborne"] .status-pill .dot,
.card[data-phase="departed"] .status-pill .dot,
.card[data-phase="taxiing"] .status-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--status);
  box-shadow: 0 0 0 0 var(--status);
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--status) 60%, transparent); }
  100% { box-shadow: 0 0 0 8px transparent; }
}

/* Route + progress */
.route {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  margin: 22px 0 6px;
}
.airport-code { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.02em; line-height: 1; }
.route .arr { text-align: right; }
.track { position: relative; height: 28px; }
.track-line {
  position: absolute; left: 0; right: 0; top: 50%;
  height: 2px; transform: translateY(-50%);
  background-image: linear-gradient(90deg, var(--faint) 50%, transparent 50%);
  background-size: 8px 2px;
  border-radius: 2px;
}
.track-fill {
  position: absolute; left: 0; top: 50%;
  height: 3px; transform: translateY(-50%);
  border-radius: 3px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--status) 40%, transparent), var(--status));
  transition: width 0.8s ease;
}
.track-plane {
  position: absolute; top: 50%;
  display: grid; place-items: center;
  width: 28px; height: 28px; border-radius: 50%;
  transform: translate(-50%, -50%);
  color: white;
  background: var(--status);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--status) 22%, transparent), 0 6px 16px rgba(0, 0, 0, 0.35);
  transition: left 0.8s ease;
}
.track-plane svg.lucide { width: 15px; height: 15px; transform: rotate(45deg); }
.card[data-phase="cancelled"] .track-line { background-image: linear-gradient(90deg, var(--c-cancelled) 50%, transparent 50%); opacity: 0.5; }

.route-names {
  overflow-wrap: anywhere;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px;
  color: var(--muted); font-size: 0.78rem;
}
.route-names span:last-child { text-align: right; }
.progress-label {
  display: flex; justify-content: center; gap: 6px; align-items: center;
  margin-top: 10px;
  font-size: 0.82rem; font-weight: 600;
  color: var(--text);
}
.progress-label svg.lucide { width: 15px; height: 15px; color: var(--status); }
.eink-view {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  width: fit-content; margin: 8px auto 0; padding: 4px 12px;
  border: 1px solid var(--card-border); border-radius: 999px;
  color: var(--muted); font-size: 0.78rem;
}
.eink-view b { color: var(--text, #fff); font-weight: 700; }
.eink-view svg.lucide { width: 14px; height: 14px; }

/* Times */
.times {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px;
  margin-top: 18px;
}
.time-box {
  min-width: 0;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
}
.time-label {
  display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600;
}
.time-label svg.lucide { width: 14px; height: 14px; }
.time-main {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}
.time-value { font-size: 1.45rem; font-weight: 750; letter-spacing: -0.01em; }
.time-value.late { color: var(--c-delayed); }
.time-value.ok { color: var(--c-landed); }
.time-old { color: var(--faint); text-decoration: line-through; font-size: 0.9rem; }
.time-sub { overflow-wrap: anywhere; margin-top: 4px; color: var(--muted); font-size: 0.75rem; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.delay-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px; border-radius: 999px;
  font-size: 0.72rem; font-weight: 700;
  color: var(--c-delayed);
  background: rgba(255, 181, 71, 0.12);
}
.delay-chip.on-time { color: var(--c-landed); background: rgba(53, 211, 154, 0.12); }

/* Info chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 11px;
  border-radius: 12px;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
}
.chip svg.lucide { width: 15px; height: 15px; color: var(--muted); }
.chip b { font-weight: 700; }
.chip .k { color: var(--muted); }

/* Live */
.live {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  margin-top: 14px; padding: 12px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--c-airborne) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--c-airborne) 22%, transparent);
}
.live-item { text-align: center; }
.live-item svg.lucide { width: 16px; height: 16px; color: var(--c-airborne); }
.live-value { margin-top: 4px; font-weight: 700; font-variant-numeric: tabular-nums; }
.live-key { color: var(--muted); font-size: 0.7rem; }

/* Footer */
.card-foot {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 10px;
  margin-top: 16px; padding-top: 14px;
  border-top: 1px solid var(--card-border);
  color: var(--faint); font-size: 0.74rem;
}
.card-actions { display: flex; gap: 6px; }
/* Full width on its own row, the buttons go below it. */
.sources { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1 1 100%; }
.sources span { display: flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sources svg.lucide { width: 13px; height: 13px; flex-shrink: 0; }
.sources em { font-style: normal; font-variant-numeric: tabular-nums; overflow: hidden; text-overflow: ellipsis; }
.eink-info { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; padding-top: 8px; border-top: 1px dashed var(--card-border); }
.eink-info:empty { display: none; }
/* May wrap on narrow screens instead of being cut off. */
.eink-info span, .sources span.wrap { white-space: normal; align-items: flex-start; }
.eink-info svg.lucide { margin-top: 1px; }
.eink-info b { color: var(--muted); font-weight: 700; }
.eink-info .ok svg.lucide { color: #2ec4b6; }
.eink-info .pending, .eink-info .pending b { color: #ffb547; }
.eink-info .warn, .sources .warn { color: #ff5c7a; }

/* Display endpoint dropdown */
.endpoints { position: relative; }
.endpoints summary { list-style: none; }
.endpoints summary::-webkit-details-marker { display: none; }
.endpoints[open] summary { background: rgba(255, 255, 255, 0.12); }
.endpoints-menu {
  position: absolute; right: 0; bottom: calc(100% + 8px); z-index: 5;
  min-width: 230px; padding: 6px;
  border-radius: 14px;
  background: #161e3d;
  border: 1px solid var(--card-border);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}
.endpoints-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  color: var(--text); text-decoration: none; font-size: 0.85rem;
}
.endpoints-menu a:hover { background: rgba(255, 255, 255, 0.07); }
.pin-btn.active { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 50%, transparent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.endpoints-menu svg.lucide { width: 16px; height: 16px; color: var(--muted); }
.pin-menu .endpoints-menu { min-width: 250px; }
.endpoints-menu button {
  display: flex; align-items: flex-start; gap: 10px; width: 100%;
  padding: 10px 12px; border: 0; border-radius: 10px; background: none;
  color: var(--text); font: inherit; font-size: 0.85rem; text-align: left; cursor: pointer;
}
.endpoints-menu button:hover { background: rgba(255, 255, 255, 0.07); }
.endpoints-menu button small { display: block; color: var(--muted); font-size: 0.75rem; margin-top: 2px; }
.endpoints-menu button.active svg.lucide { color: var(--accent); }

/* States */
.card.error { --status: var(--c-cancelled); }
.error-msg { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; color: var(--muted); font-size: 0.88rem; line-height: 1.45; }
.error-msg svg.lucide { color: var(--c-cancelled); margin-top: 2px; }
.error-msg .hint { display: block; margin-top: 6px; color: var(--c-delayed); }

.skeleton { min-height: 280px; }
.skeleton .bar {
  height: 14px; border-radius: 8px; margin-bottom: 14px;
  background: linear-gradient(90deg, rgba(255,255,255,0.05), rgba(255,255,255,0.11), rgba(255,255,255,0.05));
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }

.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty h2 { color: var(--text); margin: 16px 0 6px; font-size: 1.15rem; }
.empty-icon {
  display: inline-grid; place-items: center;
  width: 72px; height: 72px; border-radius: 22px;
  background: var(--card); border: 1px solid var(--card-border);
}
.empty-icon svg.lucide { width: 32px; height: 32px; color: var(--accent); }

/* ---------- Larger screens ---------- */
@media (min-width: 640px) {
  main { padding: 24px; }
  .add-form { grid-template-columns: minmax(0, 1fr) 190px auto; }
  .field-code { grid-column: auto; }
}
@media (min-width: 900px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1300px) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

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

/* ---------- Simulator page ---------- */
.sim { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .sim { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); } }
.sim h2 { margin: 0 0 12px; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.sim-form h2:not(:first-child) { margin-top: 20px; }
.sim-grid { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.sim-grid > label { min-width: 0; }
.sim label { display: flex; flex-direction: column; gap: 6px; font-size: 0.78rem; color: var(--muted); }
.sim input:not([type="checkbox"]), .sim select {
  width: 100%; min-width: 0; box-sizing: border-box; padding: 10px 12px; border-radius: 12px;
  border: 1px solid var(--card-border); background: rgba(255, 255, 255, 0.05);
  color: var(--text); font: inherit; font-size: 0.95rem; color-scheme: dark;
}
.sim-wide { grid-column: 1 / -1; }
.sim-message { grid-column: 1 / -1; }
.sim-devices { grid-column: 1 / -1; }
.sim-table-wrap { overflow-x: auto; margin-top: 12px; }
.sim-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.sim-table th { text-align: left; font-weight: 600; color: var(--muted); font-size: 0.75rem; padding: 6px 10px; border-bottom: 1px solid var(--card-border); white-space: nowrap; }
.sim-table td { padding: 10px; border-bottom: 1px solid var(--card-border); vertical-align: top; line-height: 1.45; }
.sim-table small { color: var(--muted); }
.sim-table a { color: var(--accent); }
.link-btn { background: none; border: 0; padding: 0; color: var(--accent); font: inherit; font-size: 0.8rem; text-decoration: underline; cursor: pointer; }
.sim-message .sim-hint { margin-bottom: 12px; }
.sim-message-body { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .sim-message-body { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); } }
.sim-message input[type="file"] { padding: 7px 8px; min-width: 0; }
.sim-hint { color: var(--faint); font-size: 0.75rem; line-height: 1.4; margin: 0; }
.sim-toggle { flex-direction: row !important; align-items: center; gap: 10px !important; margin-top: 16px; color: var(--text) !important; font-size: 0.9rem !important; }
.sim-toggle input { width: 18px; height: 18px; accent-color: var(--accent); }
.sim-toggle small { color: var(--faint); }
.sim-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.ghost-btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 16px; border-radius: 14px;
  border: 1px solid var(--card-border); background: rgba(255, 255, 255, 0.05); color: var(--text);
  font: inherit; font-weight: 600; cursor: pointer;
}
.sim-error { color: var(--c-cancelled); font-size: 0.85rem; margin: 12px 0 0; }
.sim-panel { background: #fff; border-radius: 10px; padding: 10px; display: flex; justify-content: center; }
.sim-panel img { width: 100%; max-width: 750px; height: auto; aspect-ratio: 250 / 122; image-rendering: pixelated; }
.sim-facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 16px 0 10px; font-size: 0.85rem; }
.sim-facts dt { color: var(--muted); }
.sim-facts dd { margin: 0; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.topbar-actions { display: flex; gap: 8px; }