/* ClearanceAlert — Tracking Screen Styles */

/* ── TRACKING SCREEN ─────────────────────────────────── */
  #screen-tracking {
    background: var(--black);
    display: flex;
    flex-direction: column;
  }

  /* Top bar */
  .top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
  }

  .top-bar-left {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    animation: blink 1.5s ease-in-out infinite;
  }

  .status-dot.off { background: var(--muted); box-shadow: none; animation: none; }
  .status-dot.warn { background: var(--amber); box-shadow: 0 0 8px var(--amber); }

  @keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }

  .status-text {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--dim);
  }

  .vehicle-badge {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--amber);
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.25);
    padding: 4px 10px;
    border-radius: 2px;
  }

  .settings-btn {
    background: none;
    border: none;
    color: var(--dim);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    transition: color 0.15s;
  }
  .settings-btn:hover { color: var(--text); }

  /* Main display */
  .main-display {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 20px;
    position: relative;
    overflow: hidden;
  }

  /* Scanning rings animation */
  .scan-rings {
    position: absolute;
    width: 280px; height: 280px;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
  }

  .ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px solid rgba(245, 158, 11, 0.12);
    animation: scan-expand 3s ease-out infinite;
  }

  .ring:nth-child(2) { animation-delay: 1s; }
  .ring:nth-child(3) { animation-delay: 2s; }

  @keyframes scan-expand {
    0%   { transform: scale(0.3); opacity: 0.6; }
    100% { transform: scale(1.4); opacity: 0; }
  }

  .scan-rings.alert .ring {
    border-color: rgba(239, 68, 68, 0.4);
    animation-duration: 0.8s;
  }

  /* Status indicator center */
  .status-center {
    position: relative;
    z-index: 2;
    text-align: center;
    transition: all 0.4s ease;
  }

  .status-icon {
    font-size: 80px;
    line-height: 1;
    display: block;
    transition: all 0.3s;
  }

  .status-main-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 12px;
    color: var(--green);
    transition: color 0.3s;
  }

  .status-sub-text {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--dim);
    margin-top: 4px;
  }

  /* ── ALERT OVERLAY ──────────────────────────────────── */
  .alert-overlay {
    position: absolute;
    inset: 0;
    background: rgba(239, 68, 68, 0.06);
    border: 3px solid var(--red);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 10;
    border-radius: 0;
  }

  .alert-overlay.active { opacity: 1; }

  /* Alert banner */
  .alert-banner {
    position: absolute;
    top: 0; left: 0; right: 0;
    z-index: 20;
    background: var(--red-d);
    border-bottom: 2px solid var(--red);
    padding: 0;
    transform: translateY(-100%);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .alert-banner.active { transform: translateY(0); }

  .alert-banner-inner {
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .alert-icon-big { font-size: 36px; flex-shrink: 0; }

  .alert-details { flex: 1; }

  .alert-headline {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    line-height: 1;
  }

  .alert-sub {
    font-family: var(--font-mono);
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-top: 4px;
  }

  .alert-clearance {
    text-align: right;
    flex-shrink: 0;
  }

  .clearance-num {
    font-family: var(--font-mono);
    font-size: 32px;
    color: #fff;
    font-weight: 700;
    line-height: 1;
  }

  .clearance-label {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.5);
  }

  /* ── STATS ROW ─────────────────────────────────────── */
  .stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
  }

  .stat-cell {
    background: var(--panel);
    padding: 14px 12px;
    text-align: center;
  }

  .stat-value {
    font-family: var(--font-mono);
    font-size: 20px;
    color: var(--text);
    line-height: 1;
  }

  .stat-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--dim);
    margin-top: 3px;
  }

  /* ── BRIDGE LIST ────────────────────────────────────── */
  .bridge-list-section {
    flex-shrink: 0;
    border-top: 1px solid var(--border);
    max-height: 200px;
    overflow-y: auto;
  }

  .bridge-list-header {
    padding: 10px 20px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--dim);
    border-bottom: 1px solid var(--border);
    background: var(--dark);
    position: sticky; top: 0;
  }

  .bridge-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(42,42,42,0.5);
    gap: 14px;
  }

  .bridge-dist {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--dim);
    min-width: 60px;
  }

  .bridge-name {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .bridge-height {
    font-family: var(--font-mono);
    font-size: 15px;
    padding: 3px 8px;
    border-radius: 2px;
    font-weight: 700;
  }

  .bridge-height.safe { color: var(--green); background: rgba(34,197,94,0.1); }
  .bridge-height.warn { color: var(--amber); background: rgba(245,158,11,0.1); }
  .bridge-height.danger { color: var(--red); background: rgba(239,68,68,0.1); }
  .bridge-height.unknown { color: var(--muted); background: rgba(68,68,68,0.1); }

  /* ── BOTTOM CONTROLS ────────────────────────────────── */
  .bottom-controls {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    background: var(--dark);
  }

  .mute-btn {
    flex: 1;
    padding: 14px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.15s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }

  .mute-btn.muted {
    background: rgba(239, 68, 68, 0.12);
    border-color: var(--red-d);
    color: var(--red);
  }

  .stop-btn {
    flex: 1;
    padding: 14px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--dim);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.15s;
  }

  .stop-btn:active { border-color: var(--red); color: var(--red); }

  /* ── LOADING ────────────────────────────────────────── */
  .loading-bar {
    height: 2px;
    background: var(--border);
    overflow: hidden;
    flex-shrink: 0;
  }

  .loading-bar-fill {
    height: 100%;
    background: var(--amber);
    width: 0%;
    transition: width 0.3s ease;
    animation: none;
  }

  .loading-bar-fill.indeterminate {
    animation: loading-sweep 1.5s ease-in-out infinite;
    width: 30%;
  }

  @keyframes loading-sweep {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(400%); }
  }

  /* ── GPS ACQUIRING ──────────────────────────────────── */
  .gps-acquiring {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    position: relative;
    z-index: 2;
  }

  .spinner {
    width: 48px; height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--amber);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
  }

  @keyframes spin { to { transform: rotate(360deg); } }

  .acquiring-text {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--dim);
  }

  /* ── ERROR SCREEN ───────────────────────────────────── */
  #screen-error {
    justify-content: center;
    align-items: center;
    padding: 32px;
    gap: 20px;
    text-align: center;
  }

  .error-icon { font-size: 64px; }

  .error-title {
    font-size: 28px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--red);
  }

  .error-msg {
    font-size: 15px;
    color: var(--dim);
    line-height: 1.6;
    max-width: 320px;
  }

  .retry-btn {
    padding: 14px 32px;
    background: var(--amber);
    border: none;
    border-radius: 3px;
    color: var(--black);
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
  }

  /* ── SCREEN FLASH ───────────────────────────────────── */
  @keyframes screen-flash {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
  }

  .flash-overlay {
    position: fixed; inset: 0;
    background: rgba(239, 68, 68, 0.15);
    pointer-events: none;
    opacity: 0;
    z-index: 100;
  }

  .flash-overlay.flashing {
    animation: screen-flash 0.5s ease-in-out 3;
  }


  /* ── ACCESS GATE ─────────────────────────────────────── */
  #screen-lock {
    background: var(--black);
    justify-content: center;
    align-items: center;
    padding: 32px;
    gap: 0;
    z-index: 9999;
  }

  .lock-header {
    text-align: center;
    margin-bottom: 40px;
  }

  .lock-icon {
    font-size: 56px;
    display: block;
    margin-bottom: 12px;
    filter: drop-shadow(0 0 20px rgba(245,158,11,0.3));
  }

  .lock-title {
    font-size: 36px;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--amber);
    line-height: 1;
  }

  .lock-subtitle {
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--dim);
    margin-top: 6px;
  }

  .lock-card {
    width: 100%;
    max-width: 340px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 28px;
  }

  .lock-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 12px;
  }

  .pin-dots {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
    height: 16px;
    align-items: center;
  }

  .pin-dot {
    width: 12px; height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: transparent;
    transition: all 0.15s;
  }

  .pin-dot.filled {
    background: var(--amber);
    border-color: var(--amber);
    box-shadow: 0 0 8px rgba(245,158,11,0.5);
  }

  .pin-dot.error {
    background: var(--red);
    border-color: var(--red);
    animation: shake 0.3s ease;
  }

  @keyframes shake {
    0%, 100% { transform: translateX(0); }
    25%       { transform: translateX(-4px); }
    75%       { transform: translateX(4px); }
  }

  .keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .key {
    padding: 16px 8px;
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    transition: background 0.1s, transform 0.1s;
    line-height: 1;
  }

  .key:active { background: var(--border); transform: scale(0.95); }

  .key.del {
    font-size: 16px;
    color: var(--dim);
  }

  .key.empty { visibility: hidden; cursor: default; }

  .lock-error {
    margin-top: 16px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--red);
    text-align: center;
    height: 16px;
    transition: opacity 0.2s;
  }


  /* ── VOICE TOGGLE ───────────────────────────────────── */
  .voice-btn {
    flex: 1;
    padding: 14px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.15s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }
  .voice-btn.active {
    background: rgba(34,197,94,0.12);
    border-color: var(--green);
    color: var(--green);
  }