/* ── Variables ─────────────────────────────────────────────────────────────── */
:root {
  --bg:           #1a1a2a;
  --panel:        #242440;
  --panel2:       #2e2e4d;
  --border:       #40406a;
  --border-bright:#5a5a8a;
  --text:         #c0c8e0;
  --text-dim:     #7a80a0;
  --accent:       #0088ff;
  --green:        #00cc55;
  --amber:        #ffaa00;
  --red:          #ff3344;
  --ident-color:  #00ffee;
  --font-mono:    'Courier New', 'Lucida Console', monospace;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  overflow: hidden;
  height: 100vh;
}

/* ── Shared buttons ────────────────────────────────────────────────────────── */
.btn {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  cursor: pointer;
  border-radius: 3px;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover  { background: var(--border-bright); }
.btn-sm     { padding: 3px 8px; font-size: 10px; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: #0099ff; }
.btn-danger { background: transparent; border-color: var(--red); color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-full   { width: 100%; }
.btn-green  { background: transparent; border-color: var(--green); color: var(--green); }
.btn-green.active, .btn-green:hover { background: var(--green); color: #000; }
.btn-amber  { background: transparent; border-color: var(--amber); color: var(--amber); }
.btn-amber.active, .btn-amber:hover { background: var(--amber); color: #000; }

.select-input {
  width: 100%;
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  border-radius: 3px;
  cursor: pointer;
}

.hidden { display: none !important; }

/* ── INDEX PAGE ────────────────────────────────────────────────────────────── */
/* (styles are inline in index.html for the landing box) */

/* ── ADMIN LAYOUT ──────────────────────────────────────────────────────────── */
body.admin-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  grid-template-rows: 100vh;
  overflow: hidden;
  --admin-panel-bg: #282850;
  --admin-card-bg:  #323260;
  --admin-text:     #e0e6ff;
  --admin-text-dim: #a0a8d8;
}

body.admin-layout aside {
  background: var(--admin-panel-bg);
  border-color: var(--border-bright);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  height: 100vh;
  color: var(--admin-text);
}

body.admin-layout .user-card { background: var(--admin-card-bg); border-color: #3a3a60; }
body.admin-layout .ctrl-card { background: var(--admin-card-bg); border-color: #3a3a60; }
body.admin-layout .field-label { color: var(--admin-text-dim); }
body.admin-layout .panel-title { color: var(--admin-text-dim); font-weight: bold; }
body.admin-layout .ctrl-callsign { color: var(--accent); }
body.admin-layout .ctrl-item { color: var(--admin-text-dim); }
body.admin-layout .ctrl-item span { color: var(--admin-text); }
body.admin-layout .section-header .field-label { color: var(--admin-text); }
body.admin-layout .btn { color: var(--admin-text); }
body.admin-layout .session-key { font-size: 17px; }

#left-panel  { border-right: 1px solid var(--border-bright); }
#right-panel { border-left:  1px solid var(--border-bright); }

.panel-header {
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.panel-title {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--text-dim);
}
.session-key {
  font-size: 15px;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: bold;
}

.section { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.field-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-dim);
  display: block;
  margin-bottom: 6px;
}

/* User card in admin left panel */
.user-card {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
  margin-bottom: 8px;
}
.user-card.solo-active { border-color: var(--amber); }
.user-card.is-enabled  { border-color: var(--green); }

.user-card-top {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.callsign-input {
  background: transparent;
  color: var(--text);
  border: none;
  border-bottom: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  width: 0;
  flex: 1;
  outline: none;
  transition: border-color 0.15s;
}
.callsign-input:hover  { border-bottom-color: var(--border-bright); }
.callsign-input:focus  { border-bottom-color: var(--accent); color: var(--accent); }
.user-card-btns { display: flex; gap: 4px; flex-wrap: wrap; }

.user-link-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
}
.user-link-text {
  font-size: 10px;
  color: var(--text-dim);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--text-dim);
  padding: 2px 6px;
  font-size: 10px;
  cursor: pointer;
  border-radius: 2px;
  font-family: var(--font-mono);
  white-space: nowrap;
  transition: all 0.15s;
}
.copy-btn:hover { color: var(--text); border-color: var(--text); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }

/* Controls monitor (right panel) */
#controls-monitor { padding: 8px; overflow-y: auto; }

.ctrl-card {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
  margin-bottom: 8px;
  font-size: 11px;
}
.ctrl-card.solo-active { border-color: var(--amber); }
.ctrl-card.ident-flash { border-color: var(--ident-color); animation: ident-pulse 0.333s infinite; }

@keyframes ident-pulse {
  0%, 100% { border-color: var(--ident-color); box-shadow: 0 0 6px var(--ident-color); }
  50%       { border-color: var(--border); box-shadow: none; }
}

.ctrl-callsign {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 6px;
}
.ctrl-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 3px; }
.ctrl-item { color: var(--text-dim); }
.ctrl-item span { color: var(--text); }
.ctrl-freqs { font-size: 10px; color: var(--text-dim); margin-top: 4px; }
.ctrl-freqs span { color: var(--green); }

.ctrl-rpm-row {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.ctrl-rpm-label { font-size: 9px; color: var(--text-dim); margin-left: 4px; }
.ctrl-rpm-label:first-child { margin-left: 0; }
.ctrl-rpm-val { font-size: 10px; color: var(--text); min-width: 30px; text-align: center; }
.rpm-adj {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s;
}
.rpm-adj:hover { background: var(--border-bright); }

/* Admin map */
body.admin-layout #map { height: 100vh; }

/* ── FLY LAYOUT ────────────────────────────────────────────────────────────── */
body.fly-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Status bar */
#status-bar {
  height: 30px;
  background: var(--panel);
  border-bottom: 1px solid var(--border-bright);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 20px;
  flex-shrink: 0;
  font-size: 15px;
  letter-spacing: 1px;
}
.sb-item       { color: var(--text); }
.sb-item.dim   { color: var(--text-dim); }
.sb-item.accent{ color: var(--accent); font-weight: bold; font-size: 13px; letter-spacing: 3px; }

/* Map takes remaining space */
body.fly-layout #map { flex: 1; min-height: 0; }

/* Instrument panel */
#panel {
  background: var(--panel);
  border-top: 2px solid var(--border-bright);
  flex-shrink: 0;
  padding: 6px 8px 4px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: 50vh;
}

.panel-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-height: 0;
}

/* Gauge row — wrapping grid of instrument units */
.gauge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: flex-start;
  justify-content: center;
}

/* Each gauge + its controls as one self-contained unit */
.gauge-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 6px 5px;
  flex-shrink: 0;
}
.gauge-cell canvas { cursor: default; }
#hdg-canvas { cursor: crosshair; }

/* Gauge buttons — row below each dial */
.gauge-btns {
  display: flex;
  gap: 3px;
  align-items: center;
  justify-content: center;
}
.gBtn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 4px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  border-radius: 3px;
  transition: background 0.15s;
  white-space: nowrap;
}
.gBtn:hover { background: var(--border-bright); }
.gBtn:active { background: var(--accent); color: #000; }
.gnumber {
  background: var(--bg);
  color: var(--amber);
  border: 1px solid var(--border-bright);
  padding: 3px 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  width: 44px;
  text-align: center;
  border-radius: 3px;
}
.gnumber:focus { outline: none; border-color: var(--accent); }
.gnumber::-webkit-inner-spin-button,
.gnumber::-webkit-outer-spin-button { -webkit-appearance: none; }
.gnumber[type=number] { -moz-appearance: textfield; }

/* Keep old iBtn/ibtn/inumber for any remaining usage */
.iBtn, .ibtn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 3px 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s;
  white-space: nowrap;
  flex-shrink: 1;
  min-width: 0;
}
.iBtn:hover, .ibtn:hover { background: var(--border-bright); }
.inumber {
  background: var(--bg);
  color: var(--amber);
  border: 1px solid var(--border-bright);
  padding: 2px 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  width: 50px;
  text-align: center;
  border-radius: 2px;
  flex-shrink: 1;
  min-width: 30px;
}
.inumber:focus { outline: none; border-color: var(--accent); }
.inumber::-webkit-inner-spin-button,
.inumber::-webkit-outer-spin-button { -webkit-appearance: none; }
.inumber[type=number] { -moz-appearance: textfield; }

/* Radio row — compact horizontal bar */
.radio-row {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-shrink: 0;
  flex-wrap: wrap;
  overflow: hidden;
}

.radio-unit {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.radio-label { font-size: 9px; letter-spacing: 2px; color: var(--text-dim); }

.radio-freqs {
  display: flex;
  align-items: center;
  gap: 6px;
}
.freq-active  { font-size: 16px; color: var(--green); letter-spacing: 1px; font-weight: bold; }
.freq-standby { font-size: 12px; color: var(--text-dim); letter-spacing: 1px; }

.flip-btn {
  background: var(--panel);
  border: 1px solid var(--border-bright);
  color: var(--amber);
  padding: 2px 5px;
  font-size: 13px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s;
}
.flip-btn:hover { background: var(--amber); color: #000; }

.radio-tune {
  display: flex;
  align-items: center;
  gap: 4px;
}
.tune-label { font-size: 9px; color: var(--text-dim); }
.tBtn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  border-radius: 2px;
}
.tBtn:hover { background: var(--border-bright); }

/* Transponder */
.xpdr-unit {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.squawk-display {
  background: var(--bg);
  color: var(--green);
  border: 1px solid var(--border-bright);
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 17px;
  min-width: 54px;
  text-align: center;
  letter-spacing: 4px;
  border-radius: 2px;
  flex-shrink: 0;
  margin-right: 4px;
}
.squawk-display.pending { color: var(--amber); }

.xbtn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 5px 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s;
  text-align: center;
  min-width: 26px;
}
.xbtn:hover      { background: var(--border-bright); }
.xbtn-enter      { color: var(--green); border-color: var(--green); }
.xbtn-enter:hover{ background: var(--green); color: #000; }
#xpdr-clr        { color: var(--amber); }
#xpdr-clr:hover  { background: var(--amber); color: #000; }

.ident-btn {
  background: transparent;
  color: var(--ident-color);
  border: 1px solid var(--ident-color);
  padding: 5px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  cursor: pointer;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.15s;
  margin-left: 4px;
}
.ident-btn:hover  { background: var(--ident-color); color: #000; }
.ident-btn.active { background: var(--ident-color); color: #000; animation: ident-pulse 0.5s infinite; }

/* NAV radio unit */
.nav-unit {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}
/* VOR readouts & OBS */
.vor-readouts {
  display: flex;
  gap: 10px;
  align-items: center;
}
.vor-ident { color: var(--green); font-size: 13px; font-family: var(--font-mono); letter-spacing: 2px; }
.vor-dme   { color: var(--amber); font-size: 12px; font-family: var(--font-mono); }
.vor-obs-controls {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-top: 3px;
}
.vor-obs-label {
  color: var(--text-dim);
  font-size: 12px;
  font-family: var(--font-mono);
  min-width: 56px;
  text-align: center;
}
.vor-obs-label span { color: var(--amber); }

/* Action buttons */
.action-unit {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.action-btn {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  cursor: pointer;
  border-radius: 4px;
  border: 1px solid;
  transition: all 0.15s;
  background: transparent;
  white-space: nowrap;
}
.action-btn.green { color: var(--green); border-color: var(--green); }
.action-btn.green:hover { background: var(--green); color: #000; }
.action-btn.amber { color: var(--amber); border-color: var(--amber); }
.action-btn.amber:hover { background: var(--amber); color: #000; }
.action-btn.red   { color: var(--red); border-color: var(--red); }
.action-btn.red:hover   { background: var(--red); color: #fff; }
.action-btn.eng-on  { background: var(--green); color: #000; border-color: var(--green); }
.action-btn.eng-on:hover { background: #00dd66; }
.action-btn.eng-off { background: var(--red); color: #fff; border-color: var(--red); }
.action-btn.eng-off:hover { background: #ff4455; }

/* Observer / Disabled overlays */
#observer-overlay,
#disabled-overlay {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 155px; /* same as panel */
  background: rgba(9,9,15,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  border-top: 2px solid var(--amber);
  pointer-events: none;
}
#disabled-overlay { border-top-color: var(--text-dim); }

.observer-box { text-align: center; }
.obs-title {
  font-size: 18px;
  letter-spacing: 6px;
  color: var(--amber);
  margin-bottom: 8px;
}
.obs-sub { font-size: 12px; color: var(--text-dim); letter-spacing: 2px; }

/* ── Paused banner ──────────────────────────────────────────────────────────── */
#paused-banner {
  position: fixed;
  top: 30px; left: 50%; transform: translateX(-50%);
  background: rgba(255,170,0,0.15);
  border: 1px solid var(--amber);
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 4px;
  padding: 6px 20px;
  border-radius: 3px;
  z-index: 2000;
  pointer-events: none;
}

/* ── Map aircraft icons ─────────────────────────────────────────────────────── */
.aircraft-marker { cursor: pointer; }
.aircraft-label {
  background: rgba(9,9,15,0.8);
  border: 1px solid #333;
  color: #c0c8e0;
  font-family: 'Courier New', monospace;
  font-size: 10px;
  padding: 2px 5px;
  border-radius: 2px;
  white-space: nowrap;
  pointer-events: none;
}

@keyframes ident-flash {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}
/* IDENT flash only on admin page — 3Hz (333ms cycle) */
body.admin-layout .ident-flashing { animation: ident-flash 0.333s infinite; }
body.fly-layout .ident-flashing { animation: none; }

/* ── Airport GeoJSON layer styles (applied via Leaflet) ─────────────────────── */
/* Defined in JS */

/* ── Admin login overlay ────────────────────────────────────────────────────── */
#login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9,9,15,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.login-box {
  background: var(--panel);
  border: 1px solid var(--border-bright);
  border-radius: 6px;
  padding: 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 280px;
  text-align: center;
}
.login-title {
  font-size: 16px;
  letter-spacing: 6px;
  color: var(--accent);
}
.login-sub {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 2px;
}
.pin-input {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border-bright);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 4px;
  text-align: center;
  border-radius: 4px;
  outline: none;
  width: 100%;
}
.pin-input:focus { border-color: var(--accent); }
.pin-error {
  font-size: 11px;
  color: var(--red);
  letter-spacing: 1px;
}

/* Rename button in user card */
.rename-btn {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--text-dim);
  padding: 1px 5px;
  font-size: 11px;
  cursor: pointer;
  border-radius: 2px;
  font-family: var(--font-mono);
  transition: all 0.15s;
  flex-shrink: 0;
}
.rename-btn:hover { background: var(--green); color: #000; border-color: var(--green); }

/* ── Fire warning banner (inside instrument panel, own dedicated area) ────── */
#fire-overlay {
  background: rgba(255,0,0,0.15);
  border: 2px solid var(--red);
  border-radius: 4px;
  color: #ff2233;
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 8px;
  text-align: center;
  padding: 8px 0;
  pointer-events: none;
  text-shadow: 0 0 15px rgba(255,0,0,0.8);
  animation: fire-flash 0.5s infinite;
  flex-shrink: 0;
  margin: 0;
  /* Sits as its own row in the panel flex column — does NOT overlap anything */
}
@keyframes fire-flash {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ── Stall overlay ────────────────────────────────────────────────────────── */
#stall-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9,9,15,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4000;
  pointer-events: none;
}
.stall-warning {
  font-size: 36px;
  font-weight: bold;
  color: var(--red);
  letter-spacing: 6px;
  text-shadow: 0 0 15px rgba(255,0,0,0.6);
}

/* ── Fire button (admin user card) ────────────────────────────────────────── */
.fire-btn {
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  padding: 3px 8px;
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 1px;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.15s;
}
.fire-btn:hover, .fire-btn.active { background: var(--red); color: #fff; }

/* Engine button states in admin cards */
.eng-on-btn  { background: var(--green) !important; color: #000 !important; border-color: var(--green) !important; }
.eng-off-btn { background: var(--red) !important; color: #fff !important; border-color: var(--red) !important; }
.eng-lock-btn { padding: 2px 6px; font-size: 11px; border-color: var(--border-bright); opacity: 0.5; transition: all 0.15s; }
.eng-lock-btn:hover { opacity: 0.8; }
.eng-lock-btn.active { background: var(--red) !important; color: #fff !important; border-color: var(--red) !important; opacity: 1; }

/* ── Scrollbar styling ──────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 3px; }

/* ── Responsive — smaller screens ──────────────────────────────────────────── */
@media (max-width: 1200px) {
  body.admin-layout {
    grid-template-columns: 240px 1fr 260px;
  }
}

@media (max-width: 900px) {
  .instrument { min-width: 90px; padding: 4px 3px; }
  .inst-val   { font-size: 20px; min-width: 40px; }
  .iBtn, .ibtn { font-size: 10px; padding: 1px 2px; }
  .inumber    { width: 36px; min-width: 28px; font-size: 9px; }
  .radio-unit { padding: 3px 6px; gap: 4px; }
  .freq-active { font-size: 13px; }
  .xbtn { padding: 3px 3px; font-size: 11px; min-width: 22px; }
}