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

/*
 * Base (dark) theme — deep aviation navy palette.
 * All CSS vars overridden at runtime by JS applyTheme(); these are the defaults.
 */
:root {
  --bg:       #0b1929;
  --surface:  #122240;
  --surface2: #193056;
  --border:   rgba(100,150,255,.1);
  --text:     #e8f0fe;
  --text-2:   rgba(180,210,255,.58);
  --text-3:   rgba(130,170,230,.32);
  --accent:   #4183f4;
  --green:    #00e676;
  --amber:    #ff9800;
  --red:      #ff5252;
  --font:     -apple-system,'SF Pro Display','Helvetica Neue',Arial,sans-serif;
  --mono:     'SF Mono','Fira Code','Courier New',monospace;
  --panel-w:  360px;
  --topbar-h: 64px;
}

/* Per-theme structural tweaks that CSS vars can't do alone */
html[data-theme="glass"] #topbar,
html[data-theme="glass"] #flights-panel {
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
}
html[data-theme="retro"] .leaflet-tile-pane {
  filter: sepia(1) hue-rotate(10deg) saturate(0.3) brightness(0.5);
}

/* Light theme overrides */
html[data-theme="light"] #topbar {
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(0,0,0,.1);
}
html[data-theme="light"] #flights-panel {
  background: #f4f6fb;
  border-left-color: rgba(0,0,0,.08);
}
html[data-theme="light"] .panel-head   { border-bottom-color: rgba(0,0,0,.07); }
html[data-theme="light"] .fr           { border-bottom-color: rgba(0,0,0,.06); }
html[data-theme="light"] .fr:hover,
html[data-theme="light"] .fr.active    { background: rgba(0,0,0,.04); }
html[data-theme="light"] .fr-callsign  { color: #1a2340; }
html[data-theme="light"] .leaflet-control-zoom a {
  background: rgba(255,255,255,.92) !important;
  color: #111 !important;
  border-bottom-color: rgba(0,0,0,.1) !important;
}
html[data-theme="light"] .leaflet-control-attribution {
  background: rgba(255,255,255,.8) !important;
  color: rgba(0,0,0,.55) !important;
}
html[data-theme="light"] .ac-tooltip {
  background: rgba(255,255,255,.95) !important;
  color: #111 !important;
  border-color: rgba(0,0,0,.12) !important;
}
html[data-theme="light"] #detail-bubble {
  background: rgba(255,255,255,.96);
  border-color: rgba(0,0,0,.12);
}
html[data-theme="light"] .fr-badge       { background: rgba(0,0,0,.07); color: #333; }

/* ── Layout classes (use data-layout attr set by JS) ─────────────────────── */
html[data-layout="radar"] #main,
html[data-layout="minimal"] #main { grid-template-columns: 1fr; }
html[data-layout="radar"] #flights-panel,
html[data-layout="minimal"] #flights-panel { display: none; }

html[data-layout="board"] #main          { grid-template-columns: 1fr; }
html[data-layout="board"] #map-panel     { display: none; }
html[data-layout="board"] #flights-panel { border-left: none; }
html[data-layout="board"] .fr            { min-height: 64px; padding: 12px 20px; }
html[data-layout="board"] .fr-callsign   { font-size: 16px; }
html[data-layout="board"] .fr-alt        { font-size: 15px; }

html[data-layout="minimal"] #airport-name  { display: none; }
html[data-layout="minimal"] #topbar-center { display: none; }

html, body {
  height: 100%; width: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Shell grid ─────────────────────────────────────────────────────────── */
#display {
  display: grid;
  grid-template-rows: var(--topbar-h) 1fr;
  height: 100vh;
  height: 100dvh;
}

/* ─── Top bar ────────────────────────────────────────────────────────────── */
#topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 22px 0 26px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to bottom, rgba(11,25,41,.98) 0%, rgba(11,25,41,.92) 100%);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  z-index: 200;
  box-shadow: 0 1px 0 var(--border);
}

#airport-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Pill-style airport code badge — Mappy inspired */
#airport-code {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .08em;
  line-height: 1;
  background: var(--accent);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
}

#airport-name {
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: .02em;
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

#topbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 auto;
}

/* Pill-style stat chip */
.stat-chip {
  display: flex;
  align-items: baseline;
  gap: 5px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
}

.chip-val {
  font-size: 17px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--text);
}

.chip-lbl {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-3);
  font-weight: 600;
}

.sep {
  width: 1px;
  height: 20px;
  background: var(--border);
}

#topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

#clock {
  font-size: 18px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
  color: var(--text-2);
}

/* Live dot */
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.connecting { background: var(--amber); animation: blink 1.4s ease-in-out infinite; }
.dot.live       { background: var(--green); box-shadow: 0 0 8px var(--green); animation: pulse-live 3s ease-in-out infinite; }
.dot.offline    { background: var(--red); }

@keyframes blink    { 0%,100%{opacity:1} 50%{opacity:.3} }
@keyframes pulse-live { 0%,100%{box-shadow:0 0 4px var(--green)} 50%{box-shadow:0 0 10px var(--green)} }

/* ─── Main layout ────────────────────────────────────────────────────────── */
#main {
  display: grid;
  grid-template-columns: 1fr var(--panel-w);
  overflow: hidden;
}

/* ─── Map panel ──────────────────────────────────────────────────────────── */
#map-panel { position: relative; }

#map { width: 100%; height: 100%; }

/* Leaflet overrides */
.leaflet-container          { background: #0b1929 !important; font-family: var(--font); }
.leaflet-div-icon           { background: none !important; border: none !important; box-shadow: none !important; }
.leaflet-control-zoom       { border: 1px solid rgba(65,131,244,.25) !important; border-radius: 12px !important; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,.4) !important; }
.leaflet-control-zoom a     { background: rgba(11,25,50,.92) !important; backdrop-filter: blur(10px); color: var(--text) !important; border-bottom: 1px solid rgba(65,131,244,.15) !important; width: 34px; height: 34px; line-height: 34px; font-size: 18px; font-weight: 700; }
.leaflet-control-zoom a:hover { background: rgba(65,131,244,.15) !important; }
.leaflet-control-attribution { background: rgba(11,25,50,.8) !important; color: var(--text-3) !important; font-size: 9px !important; }
.leaflet-control-attribution a { color: var(--text-2) !important; }

/* ─── Aircraft icon ──────────────────────────────────────────────────────── */
.ac-wrap {
  position: relative;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  transition: opacity .6s ease;
  cursor: pointer;
}
.ac-wrap.fading { opacity: 0; pointer-events: none; }
.ac-wrap svg    { overflow: visible; }
/* QR-scan viewer count badge on aircraft icon */
.ac-badge {
  position: absolute;
  top: -5px; right: -5px;
  min-width: 14px; height: 14px;
  background: #ff3b30;
  color: #fff;
  font-size: 8px; font-weight: 800;
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 3px;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0,0,0,.7), 0 0 8px rgba(255,59,48,.45);
  pointer-events: none;
  font-family: -apple-system, sans-serif;
  letter-spacing: 0; line-height: 1;
}

/* Custom Leaflet tooltip */
.ac-tooltip {
  background: rgba(10,25,50,.92) !important;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(65,131,244,.3) !important;
  border-radius: 8px !important;
  color: #e8f0fe !important;
  font-family: var(--mono) !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  letter-spacing: .06em;
  padding: 5px 10px !important;
  box-shadow: 0 2px 12px rgba(0,0,0,.4) !important;
  white-space: nowrap;
}
.ac-tooltip::before { display: none !important; }

/* ─── Aircraft detail bubble ─────────────────────────────────────────────── */
#detail-bubble {
  position: absolute;
  bottom: 20px; left: 20px;
  background: rgba(11,25,50,.92);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 14px;
  padding: 16px 18px 14px;
  z-index: 800;
  min-width: 220px;
  display: none;
  animation: slideUp .2s ease;
}
#detail-bubble.visible { display: block; }
@keyframes slideUp { from{transform:translateY(8px);opacity:0} to{transform:none;opacity:1} }

#detail-close {
  position: absolute;
  top: 10px; right: 12px;
  font-size: 11px;
  color: var(--text-3);
  cursor: pointer;
  padding: 2px 4px;
}
#detail-close:hover { color: var(--text); }

#detail-callsign {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .05em;
  margin-bottom: 14px;
  padding-right: 20px;
}

#detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px 16px;
}

.d-cell {}
.d-lbl {
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-3);
  margin-bottom: 2px;
}
.d-val {
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

/* ─── Flights panel ──────────────────────────────────────────────────────── */
#flights-panel {
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--surface2);
}

.panel-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.panel-count {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  background: rgba(65,131,244,.12);
  border: 1px solid rgba(65,131,244,.25);
  border-radius: 20px;
  padding: 2px 10px;
}

#flights-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
}
#flights-list::-webkit-scrollbar { display: none; }

/* ─── Flight row — Mappy-inspired card style ─────────────────────────────── */
.fr {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px 10px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .15s;
  min-height: 56px;
  position: relative;
}
.fr:hover, .fr.active {
  background: rgba(65,131,244,.06);
}

/* Colored left accent bar (airline brand color) */
.fr::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--fr-color, var(--accent));
  opacity: .7;
}
.fr.active::before { opacity: 1; }

/* Circular airline badge — "airplane circles" inspired */
.fr-badge {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 800;
  flex-shrink: 0;
  margin-left: 14px;
  letter-spacing: .03em;
  color: #fff;
  user-select: none;
  border: 1.5px solid rgba(255,255,255,.15);
}

.fr-body { flex: 1; min-width: 0; }

.fr-callsign {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--text);
  white-space: nowrap;
}

.fr-sub {
  font-size: 11px;
  color: var(--text-3);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

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

.fr-alt {
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.fr-alt.low     { color: var(--amber); }
.fr-alt.mid     { color: var(--green); }
.fr-alt.cruise  { color: var(--text); }

.fr-vr {
  font-size: 9px;
  margin-top: 2px;
  font-variant-numeric: tabular-nums;
}
.fr-vr.climb   { color: var(--green); }
.fr-vr.descend { color: var(--amber); }
.fr-vr.level   { color: var(--text-3); }

/* ─── Empty state ────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 10px;
  color: var(--text-3);
  font-size: 12px;
  padding: 40px 20px;
  text-align: center;
}
.empty-state svg { opacity: .25; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --panel-w: 280px; }
}

@media (max-width: 680px) {
  #main { grid-template-columns: 1fr; grid-template-rows: 1fr 240px; }
  #flights-panel { border-left: none; border-top: 1px solid var(--border); }
}

/* ─── Spotlight modal ────────────────────────────────────────────────────── */
#spotlight {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.75);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  animation: sl-in .3s cubic-bezier(.4,0,.2,1);
}
#spotlight.hidden { display: none; }

@keyframes sl-in {
  from { opacity:0; transform:scale(.96); }
  to   { opacity:1; transform:none; }
}

#spotlight-card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 24px;
  padding: 40px 44px 36px;
  max-width: 520px;
  width: calc(100% - 48px);
  text-align: center;
  position: relative;
  box-shadow: 0 32px 80px rgba(0,0,0,.6);
}

#spotlight-close {
  position: absolute;
  top: 16px; right: 18px;
  background: rgba(255,255,255,.08);
  border: none;
  border-radius: 50%;
  width: 32px; height: 32px;
  color: var(--text-2);
  font-size: 13px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
#spotlight-close:hover { background: rgba(255,255,255,.15); color: var(--text); }

#sl-icon-wrap {
  margin: 0 auto 20px;
  width: 80px; height: 80px;
  display: flex; align-items: center; justify-content: center;
}

#sl-callsign {
  font-family: var(--mono);
  font-size: 44px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1;
  margin-bottom: 8px;
}

#sl-airline {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 32px;
  min-height: 1.4em;
}

#sl-data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px 8px;
}

.sl-cell .sl-lbl {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-3);
  margin-bottom: 4px;
}

.sl-cell .sl-val {
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

#sl-progress {
  margin-top: 28px;
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  overflow: hidden;
}

#sl-progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 1px;
  transition: width .5s linear;
  width: 100%;
}

/* ─── Weather video overlay (bottom-right) ───────────────────────────────── */
#wx-overlay {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 300px;
  background: var(--surface, rgba(8,16,32,.96));
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid rgba(255,120,40,.35);
  border-radius: 16px;
  z-index: 1100;
  overflow: hidden;
  box-shadow: 0 4px 32px rgba(0,0,0,.6), 0 0 0 1px rgba(255,120,40,.1);
  animation: slideUp .3s ease;
}
#wx-overlay.hidden { display: none; }

#wx-overlay-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 12px 10px;
  border-bottom: 1px solid rgba(255,120,40,.2);
}
#wx-overlay-icon {
  font-size: 22px;
  flex-shrink: 0;
  line-height: 1.2;
}
#wx-overlay-text { flex: 1; min-width: 0; }
#wx-overlay-event {
  font-size: 12px;
  font-weight: 700;
  color: #ffa040;
  text-transform: uppercase;
  letter-spacing: .08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#wx-overlay-headline {
  font-size: 11px;
  color: var(--text-2, rgba(255,255,255,.65));
  margin-top: 3px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
#wx-overlay-dismiss {
  background: none;
  border: none;
  color: rgba(255,255,255,.4);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
  border-radius: 4px;
  flex-shrink: 0;
}
#wx-overlay-dismiss:hover { color: rgba(255,255,255,.9); background: rgba(255,255,255,.08); }

#wx-news-list {
  position: relative;
  height: 240px;
  overflow: hidden;
}
#wx-news-inner {
  position: absolute;
  top: 0; left: 0; right: 0;
  will-change: transform;
}
.wx-news-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.wx-news-wx {
  background: rgba(255,100,30,.08);
  border-bottom-color: rgba(255,100,30,.15);
}
.wx-news-qr {
  flex-shrink: 0;
  border-radius: 5px;
  background: #080f1e;
  display: block;
}
.wx-news-body { flex: 1; min-width: 0; }
.wx-news-cat {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: rgba(255,255,255,.38);
  margin-bottom: 4px;
}
.wx-news-wx .wx-news-cat { color: #ffa040; }
.wx-news-title {
  font-size: 11.5px;
  font-weight: 600;
  color: rgba(255,255,255,.86);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.wx-news-loading, .wx-news-empty {
  padding: 20px 12px;
  font-size: 12px;
  color: rgba(255,255,255,.3);
}

#wx-overlay-footer {
  padding: 7px 12px;
  background: rgba(0,0,0,.3);
  text-align: center;
}
#wx-scan-hint {
  font-size: 10px;
  color: rgba(255,255,255,.3);
  letter-spacing: .04em;
}

/* ─── Flight QR code modal ───────────────────────────────────────────────── */
#qr-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn .15s ease;
}
#qr-modal.hidden { display: none; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }

#qr-modal-card {
  background: #0f1e35;
  border: 1px solid rgba(100,150,255,.2);
  border-radius: 20px;
  padding: 28px 28px 24px;
  text-align: center;
  max-width: 320px;
  width: 90%;
  position: relative;
  box-shadow: 0 8px 48px rgba(0,0,0,.7);
  animation: slideUp .2s ease;
}

#qr-modal-close {
  position: absolute;
  top: 14px; right: 16px;
  background: none;
  border: none;
  color: rgba(255,255,255,.4);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}
#qr-modal-close:hover { color: rgba(255,255,255,.9); }

#qr-modal-callsign {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--text);
  margin-bottom: 4px;
}
#qr-modal-label {
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 20px;
}
#qr-modal-canvas {
  display: inline-block;
  padding: 12px;
  background: #fff;
  border-radius: 12px;
  margin-bottom: 14px;
}
#qr-modal-canvas img,
#qr-modal-canvas canvas { display: block; }

#qr-modal-url {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-3);
  word-break: break-all;
  margin-bottom: 16px;
  padding: 0 8px;
}
#qr-modal-link {
  display: inline-block;
  background: rgba(65,131,244,.15);
  border: 1px solid rgba(65,131,244,.35);
  color: var(--accent);
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background .15s;
}
#qr-modal-link:hover { background: rgba(65,131,244,.28); }

/* QR button inside flight row */
.fr-qr-btn {
  background: none;
  border: 1px solid rgba(65,131,244,.2);
  color: rgba(65,131,244,.6);
  border-radius: 6px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 13px;
  transition: border-color .15s, color .15s, background .15s;
  margin-left: auto;
  margin-right: 4px;
}
.fr-qr-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(65,131,244,.1);
}

/* ── Connect Controller QR button (bottom-right, always visible) ── */
#ctrl-qr-btn {
  position: fixed; bottom: 20px; right: 20px; z-index: 800;
  display: flex; align-items: center; gap: 8px;
  background: rgba(10,20,40,.85); backdrop-filter: blur(10px);
  border: 1px solid rgba(65,131,244,.3); border-radius: 14px;
  color: rgba(180,210,255,.7); font-size: 12px; font-weight: 700;
  letter-spacing: .05em; padding: 10px 16px; cursor: pointer;
  transition: border-color .2s, color .2s;
}
#ctrl-qr-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Controller QR modal ── */
#ctrl-qr-modal {
  position: fixed; inset: 0; z-index: 9100;
  background: rgba(0,0,0,.85); backdrop-filter: blur(16px);
  display: flex; align-items: center; justify-content: center;
}
#ctrl-qr-modal.hidden { display: none; }
#ctrl-qr-card {
  background: #fff; border-radius: 24px; padding: 32px 28px 24px;
  text-align: center; max-width: 300px; width: 90%; position: relative;
}
.ctrl-qr-close {
  position: absolute; top: 14px; right: 14px; background: none; border: none;
  font-size: 20px; cursor: pointer; color: rgba(0,0,0,.35); line-height: 1;
}
.ctrl-qr-icon  { font-size: 36px; margin-bottom: 10px; }
.ctrl-qr-title { font-size: 20px; font-weight: 800; color: #0a1428; margin-bottom: 6px; }
.ctrl-qr-sub   { font-size: 13px; color: rgba(0,0,0,.45); margin-bottom: 18px; line-height: 1.5; }
#ctrl-qr-canvas { margin: 0 auto 12px; }
.ctrl-qr-url   { font-size: 10px; color: rgba(0,0,0,.3); word-break: break-all; margin-bottom: 14px; }
.ctrl-qr-link  { display: inline-block; font-size: 14px; font-weight: 700; color: #006fd9; text-decoration: none; }