:root {
  --bg: #0a0e16;
  --bg-elev: #121826;
  --bg-elev-2: #1a2235;
  --border: #232c40;
  --text: #e8edf7;
  --text-dim: #8c98b3;
  --accent: #3aa8ff;
  --green: #2ecf71;
  --amber: #f5b942;
  --orange: #ff9142;
  --gray: #6b7488;
  --blue: #3aa8ff;
  --red: #ff5c5c;
  --radius: 14px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 20% -10%, #122036 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---------- login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  max-width: 360px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.login-logo { font-size: 40px; margin-bottom: 8px; }
.login-card h1 { font-size: 22px; margin: 0 0 6px; }
.login-sub { color: var(--text-dim); font-size: 14px; margin: 0 0 24px; }
#login-form { display: flex; flex-direction: column; gap: 12px; }
.login-card input {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 15px;
  text-align: center;
}
.login-card button {
  background: var(--accent);
  border: none;
  color: #00121f;
  font-weight: 700;
  padding: 12px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
}
.login-error { color: var(--red); font-size: 13px; margin-top: 14px; }

/* ---------- layout ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10,14,22,0.85);
  backdrop-filter: blur(10px);
  z-index: 50;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 16px; }
.brand-icon { font-size: 20px; }
.brand-title strong { color: var(--accent); }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.whoami { color: var(--text-dim); font-size: 13px; }
.ghost-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.ghost-btn:hover { color: var(--text); border-color: var(--accent); }

.main {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 16px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ---------- hero ---------- */
.hero {
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--bg-elev) 0%, var(--bg-elev-2) 100%);
  transition: box-shadow 0.4s ease;
}
.hero-status-row { display: flex; align-items: center; gap: 12px; }
.status-dot {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--gray);
  box-shadow: 0 0 0 0 rgba(0,0,0,0);
}
.hero h2 { margin: 0; font-size: 26px; }
.hero-sub { color: var(--text-dim); margin-top: 8px; font-size: 14px; }

.hero-idle .status-dot { background: var(--gray); }
.hero-upcoming .status-dot { background: var(--blue); }
.hero-scheduled_awaiting .status-dot { background: var(--amber); animation: pulse 1.4s infinite; }
.hero-preflight .status-dot { background: var(--amber); }
.hero-taxiing .status-dot { background: var(--orange); }
.hero-airborne .status-dot { background: var(--green); box-shadow: 0 0 24px 4px rgba(46,207,113,0.45); }
.hero-landed .status-dot { background: var(--gray); }

.hero-airborne { border-color: rgba(46,207,113,0.4); box-shadow: 0 0 50px -10px rgba(46,207,113,0.25); }
.hero-taxiing { border-color: rgba(255,145,66,0.35); }
.hero-scheduled_awaiting { border-color: rgba(245,185,66,0.35); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.readouts {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.readout {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.rlabel { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.rvalue { font-size: 17px; font-weight: 600; font-variant-numeric: tabular-nums; }

.badge-unverified {
  display: inline-block;
  margin-top: 14px;
  margin-right: 8px;
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(245,185,66,0.12);
  color: var(--amber);
  border: 1px solid rgba(245,185,66,0.3);
}

/* ---------- persistent simulated banner ---------- */
.sim-banner {
  background: repeating-linear-gradient(45deg, rgba(58,168,255,0.18), rgba(58,168,255,0.18) 14px, rgba(58,168,255,0.28) 14px, rgba(58,168,255,0.28) 28px);
  border-bottom: 1px solid rgba(58,168,255,0.5);
  color: var(--accent);
  text-align: center;
  padding: 10px 16px;
  font-size: 13.5px;
}
.sim-banner strong { color: #cfe9ff; }

/* ---------- cards ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3 { margin: 0 0 14px; font-size: 15px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }

.upcoming-card .upcoming-countdown {
  font-size: 38px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.upcoming-card .upcoming-time {
  font-size: 24px;
  font-weight: 700;
  margin-top: 6px;
}
.upcoming-card .upcoming-secondary {
  display: flex;
  gap: 16px;
  margin-top: 10px;
  color: var(--text-dim);
  font-size: 14px;
}
.upcoming-card .upcoming-time-trio { color: var(--text-dim); font-size: 13px; margin-top: 12px; }

.upcoming-queue {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.up-queue-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  color: var(--text-dim);
}
.up-q-tail { font-weight: 600; color: var(--text); min-width: 58px; }
.up-q-time { flex: 1; }
.up-q-dur { color: var(--gray); font-size: 12px; }

.upcoming-after {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

.map-card { isolation: isolate; }
.map-live-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
  text-transform: none;
  letter-spacing: 0.04em;
  margin-left: 8px;
  animation: pulse 1.4s infinite;
}
.map-header { display: flex; flex-direction: column; gap: 2px; margin-bottom: 14px; }
.map-header h3 { margin: 0; }
.map-idle-hint { font-size: 12px; color: var(--text-dim); text-transform: none; letter-spacing: 0; font-weight: 400; }
.map-flight-label { color: var(--text-dim); }
#map { height: 360px; border-radius: 10px; overflow: hidden; background: #0d1320; }
.map-empty { color: var(--text-dim); text-align: center; padding: 40px 0; font-size: 14px; }

/* ---------- history table ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: rgba(58,168,255,0.06); }
.row-canceled { opacity: 0.45; text-decoration: line-through; }
.row-simulated { opacity: 0.7; }
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px;
  background: rgba(255,255,255,0.06); color: var(--text-dim);
}
.tag-sim { background: rgba(58,168,255,0.12); color: var(--accent); border: 1px solid rgba(58,168,255,0.25); }

/* ---------- self panel ---------- */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tab-btn {
  background: transparent; border: 1px solid var(--border); color: var(--text-dim);
  padding: 7px 12px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.tab-btn.active { background: var(--accent); color: #00121f; border-color: var(--accent); font-weight: 600; }
.tab-panel { display: flex; flex-direction: column; gap: 12px; }
.hint { color: var(--text-dim); font-size: 12.5px; line-height: 1.5; }

.form-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.form-row input, .form-row select {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 8px; font-size: 13px; flex: 1; min-width: 120px;
}
.form-row label { font-size: 13px; color: var(--text-dim); margin-right: 4px; }
.form-row button, #manual-submit-btn {
  background: var(--accent); border: none; color: #00121f; font-weight: 600;
  padding: 9px 16px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.form-row button.secondary, button.secondary {
  background: transparent; border: 1px solid var(--border); color: var(--text-dim);
}

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-dim); }
.form-grid .full { grid-column: 1 / -1; }
.form-grid input {
  background: var(--bg-elev-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 8px; font-size: 13px;
}

/* ---------- friends table / activity timeline ---------- */
.friend-url { color: var(--accent); font-size: 12px; word-break: break-all; white-space: normal; }
.friend-stats { font-size: 12px; color: var(--text-dim); }
.friend-summary-row td { padding-top: 12px; padding-bottom: 12px; white-space: normal; }
.friend-timeline-row td { background: rgba(0,0,0,0.15); }

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: 320px;
  overflow-y: auto;
  padding: 8px 0;
}
.tl-event {
  display: grid;
  grid-template-columns: 10px 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 5px 4px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 12px;
}
.tl-event:last-child { border-bottom: none; }
.tl-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gray);
  flex-shrink: 0;
}
.tl-load .tl-dot { background: var(--text-dim); }
.tl-auth .tl-dot { background: var(--accent); }
.tl-time { color: var(--text-dim); white-space: nowrap; }
.tl-label { color: var(--text); white-space: nowrap; }
.tl-detail { color: var(--gray); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 180px; }

.sim-progress { margin-top: 6px; }
.sim-progress-row {
  display: flex; justify-content: space-between; font-size: 13px;
  color: var(--text-dim); margin-bottom: 6px;
}
.sim-progress-phase { color: var(--accent); font-weight: 600; }
.sim-progress-bar {
  height: 8px; border-radius: 999px; background: rgba(255,255,255,0.06);
  overflow: hidden; border: 1px solid var(--border);
}
.sim-progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--accent), var(--green));
  width: 0%; transition: width 0.6s linear;
}

.sys-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sys-card {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px;
}
.sys-card h4 { margin: 0 0 10px; font-size: 13px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.03em; }
.sys-row { display: flex; justify-content: space-between; font-size: 13px; padding: 5px 0; border-bottom: 1px solid var(--border); }
.sys-row:last-child { border-bottom: none; }
.sys-row span:first-child { color: var(--text-dim); }

/* ---------- how it works ---------- */
.how-it-works { margin-top: 4px; }
.hiw-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.hiw-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.hiw-icon {
  font-size: 22px;
  flex-shrink: 0;
  margin-top: 1px;
}
.hiw-item strong {
  display: block;
  font-size: 13.5px;
  margin-bottom: 4px;
  color: var(--text);
}
.hiw-item p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.55;
}

.footer { text-align: center; color: var(--text-dim); font-size: 12px; padding: 24px 0; }

@media (max-width: 600px) {
  .hiw-grid { grid-template-columns: 1fr; }
  .readouts { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .hero { padding: 20px; }
  .hero h2 { font-size: 21px; }
  #map { height: 280px; }
  .upcoming-card .upcoming-countdown { font-size: 28px; }
  .upcoming-card .upcoming-time { font-size: 19px; }
  .sys-grid { grid-template-columns: 1fr; }
  .topbar { padding: 12px 14px; }
  .brand-title { font-size: 14px; }
  .brand-icon { display: none; }
}