/* ═══════════════════════════════════════════════════════════════
   HandTrackLIS — style.css
   Theme: Anime Transit Blue — deep midnight navy, electric cyan,
   glass panels, layered depth. Inspired by the reference image:
   a student on a night train looking out at a city skyline.

   Palette extracted from image:
     bg-deep:   #050c18  (train interior shadow)
     bg-mid:    #0d1e35  (seat material)
     bg-panel:  #0f2340  (window frame)
     cyan:      #00c8ff  (window sky highlight)
     sky-blue:  #5ab4e0  (mid sky)
     city:      #0a1828  (city silhouette)
     white:     #e8f4ff  (light reflection)

   Fonts:
     Rajdhani    — angular, military-adjacent, feels like transit UI
     Share Tech Mono — technical mono for labels/status
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;500;600;700&family=Share+Tech+Mono&display=swap');

/* ── Design tokens ────────────────────────────────────────────── */
:root {
  --bg:          #050c18;
  --bg2:         #0b1929;
  --bg3:         #0f2340;
  --bg4:         #142a4a;
  --border:      #1a3a5c;
  --border-dim:  #0f2035;
  --cyan:        #00c8ff;
  --cyan-dim:    #0098cc;
  --cyan-glow:   rgba(0, 200, 255, 0.15);
  --cyan-glow2:  rgba(0, 200, 255, 0.06);
  --sky:         #5ab4e0;
  --red:         #ff4466;
  --red-dim:     #cc2244;
  --amber:       #ffaa00;
  --text:        #c0d8f0;
  --text-dim:    #4a7090;
  --text-bright: #e8f4ff;
  --font-display: 'Rajdhani', sans-serif;
  --font-mono:    'Share Tech Mono', monospace;
  --radius:       6px;
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --transition:   180ms var(--ease);
}

/* ── Reset ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow-x: hidden; }

/* ── Base ─────────────────────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
}

/* ── Layered backgrounds ──────────────────────────────────────── */

/* Fine grid — like tiled train window glass */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0, 200, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 200, 255, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

/* Deep blue radial glow at top — the "window light" */
body::after {
  content: '';
  position: fixed;
  top: -180px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 500px;
  background: radial-gradient(ellipse at center,
    rgba(0, 150, 255, 0.08) 0%,
    rgba(0, 80, 160, 0.04) 50%,
    transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Floating bird particles — SVG data URI dots drifting like the birds in the image */
#particles {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: rgba(0, 200, 255, 0.4);
  animation: drift linear infinite;
}
@keyframes drift {
  from { transform: translateY(100vh) translateX(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.6; }
  to   { transform: translateY(-60px) translateX(40px); opacity: 0; }
}

/* ── App layout ───────────────────────────────────────────────── */
#app {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
}

/* ── Screens ──────────────────────────────────────────────────── */
.screen {
  width: 100%; max-width: 580px;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.screen.active {
  display: flex;
  animation: screen-in 0.4s var(--ease);
}
@keyframes screen-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Logo ─────────────────────────────────────────────────────── */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 0 6px;
}
.logo-icon {
  width: 40px; height: 40px;
  border: 2px solid var(--cyan);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: 0 0 20px var(--cyan-glow), inset 0 0 12px var(--cyan-glow2);
  position: relative;
}
/* Corner tick marks on logo */
.logo-icon::before, .logo-icon::after {
  content: '';
  position: absolute;
  width: 6px; height: 6px;
}
.logo-icon::before { top: -4px; left: -4px; border-top: 1px solid var(--cyan); border-left: 1px solid var(--cyan); }
.logo-icon::after  { bottom: -4px; right: -4px; border-bottom: 1px solid var(--cyan); border-right: 1px solid var(--cyan); }

.logo-text {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-bright);
  text-transform: uppercase;
}
.logo-text .accent { color: var(--cyan); }
.logo-sub {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ── Cards / panels ───────────────────────────────────────────── */
.card {
  width: 100%;
  background: linear-gradient(145deg, rgba(15,35,64,0.9) 0%, rgba(10,25,48,0.95) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}
/* Top shimmer line */
.card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan-dim) 40%, var(--cyan) 60%, transparent 100%);
  opacity: 0.6;
}
/* Left accent bar */
.card::after {
  content: '';
  position: absolute; top: 0; left: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, transparent 100%);
  opacity: 0.4;
}

.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-bright);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.card-sub {
  color: var(--text-dim);
  font-size: 11px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

/* ── Home hero ────────────────────────────────────────────────── */
.home-hero { text-align: center; padding: 16px 0 4px; }
.home-tagline {
  font-family: var(--font-display);
  font-size: clamp(40px, 11vw, 62px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 4px;
  color: var(--text-bright);
  text-transform: uppercase;
}
.home-tagline em {
  font-style: normal;
  color: var(--cyan);
  display: block;
  /* Scanline shimmer effect */
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan), #80e8ff, var(--cyan));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}
@keyframes shimmer {
  from { background-position: 0% center; }
  to   { background-position: 200% center; }
}
.home-desc {
  color: var(--text-dim);
  font-size: 12px;
  max-width: 360px;
  margin: 10px auto 0;
  line-height: 1.7;
}

/* ── Mode selection grid ──────────────────────────────────────── */
.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
}
.mode-card {
  background: linear-gradient(145deg, rgba(12,30,56,0.95), rgba(8,20,40,0.98));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 16px;
  cursor: pointer;
  text-align: center;
  transition: all 250ms var(--ease);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.mode-card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(0,200,255,0.08), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}
.mode-card:hover::before { opacity: 1; }
.mode-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5), 0 0 20px rgba(0,200,255,0.1);
}
.mode-icon { font-size: 38px; line-height: 1; filter: drop-shadow(0 0 8px rgba(0,200,255,0.4)); }
.mode-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-bright);
}
.mode-desc { font-size: 11px; color: var(--text-dim); line-height: 1.6; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  width: 100%;
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, transparent 100%);
  pointer-events: none;
}
.btn:active  { transform: scale(0.97); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, #0088cc, var(--cyan));
  color: #000d1a;
  box-shadow: 0 0 24px rgba(0,200,255,0.35), inset 0 1px 0 rgba(255,255,255,0.15);
  font-weight: 700;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #00a0e0, #40d8ff);
  box-shadow: 0 0 36px rgba(0,200,255,0.55);
}
.btn-danger {
  background: linear-gradient(135deg, #cc1133, var(--red));
  color: #fff;
  box-shadow: 0 0 24px rgba(255,40,80,0.3);
}
.btn-danger:hover:not(:disabled) {
  box-shadow: 0 0 36px rgba(255,40,80,0.5);
  background: linear-gradient(135deg, #dd2244, #ff6688);
}
.btn-ghost {
  background: rgba(0,200,255,0.05);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,200,255,0.08);
}
.btn-sm { padding: 8px 16px; font-size: 12px; width: auto; }
.btn-row { display: flex; gap: 10px; width: 100%; }

/* ── Video elements ───────────────────────────────────────────── */
.video-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: 10px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
/* Animated scanning corner brackets */
.video-wrap::before,
.video-wrap::after {
  content: '';
  position: absolute;
  z-index: 10;
  width: 22px; height: 22px;
  pointer-events: none;
}
.video-wrap::before {
  top: 10px; left: 10px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  box-shadow: -2px -2px 8px rgba(0,200,255,0.3);
}
.video-wrap::after {
  bottom: 10px; right: 10px;
  border-bottom: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
  box-shadow: 2px 2px 8px rgba(0,200,255,0.3);
}
/* Extra two corners via wrapper pseudo */
.video-wrap .corner-tr, .video-wrap .corner-bl {
  position: absolute;
  z-index: 10;
  width: 22px; height: 22px;
  pointer-events: none;
}
.video-wrap .corner-tr { top: 10px; right: 10px; border-top: 2px solid var(--cyan-dim); border-right: 2px solid var(--cyan-dim); }
.video-wrap .corner-bl { bottom: 10px; left: 10px; border-bottom: 2px solid var(--cyan-dim); border-left: 2px solid var(--cyan-dim); }

video {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  background: #000;
}
#local-preview { transform: scaleX(-1); } /* mirror selfie view */

.video-overlay {
  position: absolute; inset: 0; z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  background: rgba(5, 12, 24, 0.75);
  color: var(--text-dim);
  font-size: 12px;
}
.video-overlay.hidden { display: none; }
.video-overlay-icon   { font-size: 42px; opacity: 0.4; }

/* ── Live badge ───────────────────────────────────────────────── */
.live-badge {
  position: absolute; top: 12px; left: 12px; z-index: 20;
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 10px;
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(255,40,80,0.5);
}
.live-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: blink 1s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.3; } }

/* ── Status bar ───────────────────────────────────────────────── */
.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: rgba(10,25,48,0.9);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  font-size: 12px;
  width: 100%;
  letter-spacing: 0.5px;
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--text-dim);
}
.status-dot.idle   { background: var(--text-dim); }
.status-dot.live   { background: var(--red);  animation: pulse-red  1.2s ease-in-out infinite; }
.status-dot.online { background: var(--cyan); animation: pulse-cyan 1.2s ease-in-out infinite; }
.status-dot.warn   { background: var(--amber); }
@keyframes pulse-red  { 0%,100% { box-shadow: 0 0 0 0 rgba(255,60,80,0.6); } 50% { box-shadow: 0 0 0 6px rgba(255,60,80,0); } }
@keyframes pulse-cyan { 0%,100% { box-shadow: 0 0 0 0 rgba(0,200,255,0.6); } 50% { box-shadow: 0 0 0 6px rgba(0,200,255,0); } }
.status-label  { flex: 1; color: var(--text); }
.status-detail { color: var(--text-dim); font-size: 10px; }

/* ── Viewer count chip ────────────────────────────────────────── */
.viewer-chip {
  display: inline-flex;
  align-items: center; gap: 5px;
  background: rgba(0,200,255,0.08);
  border: 1px solid rgba(0,200,255,0.2);
  border-radius: 100px;
  padding: 3px 10px;
  font-size: 11px;
  color: var(--cyan);
}
.viewer-chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }

/* ── TURN status badge ────────────────────────────────────────── */
#turn-status {
  display: none;
  align-items: center; gap: 6px;
  padding: 5px 12px;
  background: rgba(10,25,48,0.8);
  border: 1px solid var(--border-dim);
  border-radius: 100px;
  font-size: 11px;
  color: var(--text-dim);
  width: fit-content;
  align-self: center;
}
.turn-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.turn-dot.relay { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.turn-dot.stun  { background: var(--amber); }
.turn-dot.error { background: var(--red); }

/* ── Room ID display ──────────────────────────────────────────── */
.room-display {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  background: rgba(5,15,30,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
}
.room-id-value {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 10px;
  color: var(--cyan);
  flex: 1;
  text-shadow: 0 0 16px rgba(0,200,255,0.5);
}
.copy-btn {
  background: rgba(0,200,255,0.1);
  border: 1px solid rgba(0,200,255,0.2);
  border-radius: 4px;
  color: var(--text-dim);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition);
}
.copy-btn:hover { background: var(--cyan); color: #000; border-color: var(--cyan); }

/* ── QR code ──────────────────────────────────────────────────── */
.qr-section {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.qr-frame {
  padding: 10px;
  background: #fff;
  border-radius: 8px;
  display: inline-flex;
  box-shadow: 0 0 20px rgba(0,200,255,0.2);
}
.qr-label { font-size: 11px; color: var(--text-dim); letter-spacing: 2px; text-transform: uppercase; }

/* ── Join input ───────────────────────────────────────────────── */
.input-group { display: flex; gap: 8px; width: 100%; }
.input-field {
  flex: 1;
  background: rgba(5,15,30,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 8px;
  padding: 12px 16px;
  text-transform: uppercase;
  outline: none;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input-field:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(0,200,255,0.2);
}
.input-field::placeholder { color: var(--text-dim); letter-spacing: 4px; }

/* ── Camera toggle button (overlay) ──────────────────────────── */
.cam-toggle {
  position: absolute;
  bottom: 10px; right: 10px; z-index: 20;
  background: rgba(5,15,30,0.8);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 17px;
  color: var(--text-dim);
  transition: all var(--transition);
}
.cam-toggle:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 12px var(--cyan-glow); }

/* ── Divider ──────────────────────────────────────────────────── */
.divider {
  width: 100%; height: 1px;
  background: var(--border-dim);
  position: relative;
  margin: 4px 0;
}
.divider-text {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg2);
  padding: 0 12px;
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── Back link ────────────────────────────────────────────────── */
.back-link {
  color: var(--text-dim); font-size: 12px;
  cursor: pointer; display: flex; align-items: center; gap: 4px;
  transition: color var(--transition);
  background: none; border: none;
  font-family: var(--font-mono); padding: 0;
  align-self: flex-start;
  letter-spacing: 1px;
}
.back-link:hover { color: var(--cyan); }

/* ── Info label ───────────────────────────────────────────────── */
.info-label {
  font-size: 10px; color: var(--text-dim);
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 6px;
}

/* ── Spinner ──────────────────────────────────────────────────── */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(0,200,255,0.2);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg3);
  border: 1px solid var(--cyan);
  border-radius: 8px;
  padding: 11px 20px;
  font-size: 13px;
  color: var(--cyan);
  z-index: 9999;
  transition: transform 0.28s var(--ease);
  white-space: nowrap;
  box-shadow: 0 4px 24px rgba(0,200,255,0.2);
  pointer-events: none;
}
#toast.show { transform: translateX(-50%) translateY(0); }

/* ── Config warning ───────────────────────────────────────────── */
#config-warning {
  width: 100%; max-width: 580px;
  background: rgba(255,170,0,0.06);
  border: 1px solid var(--amber);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 12px;
  color: var(--amber);
  display: none;
  position: relative; z-index: 1;
  margin-top: 8px; line-height: 1.9;
}
#config-warning code {
  background: rgba(255,255,255,0.08);
  padding: 1px 5px; border-radius: 3px;
  font-family: var(--font-mono);
}
#config-warning a { color: var(--amber); }

/* ── How it works list ────────────────────────────────────────── */
.how-list {
  color: var(--text-dim);
  font-size: 12px;
  line-height: 2;
}
.how-list strong { color: var(--text); }
.how-list .step-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 18px; height: 18px;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 10px;
  color: var(--cyan);
  margin-right: 6px;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 420px) {
  .mode-grid { grid-template-columns: 1fr; }
  .qr-section { display: none; }
  #app { padding: 10px; }
  .home-tagline { letter-spacing: 2px; }
}

/* ═══════════════════════════════════════════════════════════════
   SHARING PANEL — streamer screen
   ═══════════════════════════════════════════════════════════════ */

/* ── Individual share method card ────────────────────────────── */
.share-card {
  width: 100%;
  background: linear-gradient(145deg, rgba(15,35,64,0.92), rgba(8,20,42,0.96));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  position: relative;
  overflow: hidden;
}
.share-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-dim), transparent);
  opacity: 0.5;
}

/* Method label row */
.share-method-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.share-method-icon { font-size: 12px; }

.share-card-body { display: flex; flex-direction: column; gap: 12px; }

/* QR card body — row layout on wider screens */
.qr-body {
  flex-direction: row;
  gap: 18px;
  align-items: flex-start;
}
.qr-body .qr-frame {
  flex-shrink: 0;
  padding: 10px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 24px rgba(0,200,255,0.2), 0 4px 16px rgba(0,0,0,0.4);
  transition: box-shadow var(--transition);
}
.qr-body .qr-frame:hover {
  box-shadow: 0 0 36px rgba(0,200,255,0.35), 0 8px 24px rgba(0,0,0,0.5);
}
.qr-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}
.qr-hint {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.7;
}
.qr-url-preview {
  font-size: 10px;
  color: var(--text-dim);
  word-break: break-all;
  background: rgba(0,0,0,0.3);
  padding: 6px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  letter-spacing: 0;
}

/* ── OR divider between QR and the two-col section ───────────── */
.share-or {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 2px 0;
}
.share-or span:first-child,
.share-or span:last-child {
  flex: 1;
  height: 1px;
  background: var(--border-dim);
}
.share-or-text {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ── Two-column layout for Link + Code cards ──────────────────── */
.share-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
}
.share-card-half { /* inherits .share-card */ }

/* Link display box */
.share-link-box {
  font-size: 11px;
  color: var(--cyan);
  word-break: break-all;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(0,200,255,0.15);
  border-radius: 5px;
  padding: 8px 10px;
  line-height: 1.6;
  font-family: var(--font-mono);
  min-height: 52px;
  display: flex;
  align-items: center;
}

/* Copy buttons inside share cards */
.share-copy-btn {
  font-size: 12px !important;
  padding: 8px 12px !important;
  width: 100% !important;
  letter-spacing: 1px;
}

/* ── Numeric code display on streamer side ────────────────────── */
.numeric-code-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 12px 8px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(0,200,255,0.2);
  border-radius: 8px;
}
.code-group {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 6px;
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0,200,255,0.6);
}
.code-dot {
  font-size: 24px;
  color: var(--text-dim);
  margin: 0 2px;
  line-height: 1;
}

/* Responsive: stack on narrow screens */
@media (max-width: 480px) {
  .qr-body { flex-direction: column; align-items: center; }
  .share-two-col { grid-template-columns: 1fr; }
  .code-group { font-size: 26px; letter-spacing: 4px; }
}

/* ═══════════════════════════════════════════════════════════════
   JOIN PANEL — viewer screen
   ═══════════════════════════════════════════════════════════════ */

/* ── Tab switcher ─────────────────────────────────────────────── */
.join-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
  margin-bottom: 18px;
}
.join-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 11px 12px;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  position: relative;
}
.join-tab + .join-tab {
  border-left: 1px solid var(--border);
}
.join-tab.active {
  background: rgba(0,200,255,0.1);
  color: var(--cyan);
}
.join-tab.active::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--cyan);
}
.join-tab:hover:not(.active) {
  background: rgba(0,200,255,0.05);
  color: var(--text);
}

/* ── Tab panels ───────────────────────────────────────────────── */
.join-panel { display: none; }
.join-panel.active { display: block; }

/* ── Six digit boxes for code entry ──────────────────────────── */
#code-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 0;
}
.code-box {
  width: 52px;
  height: 60px;
  background: rgba(5,15,35,0.9);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  caret-color: var(--cyan);
}
.code-box:focus {
  border-color: var(--cyan);
  background: rgba(0,200,255,0.06);
  box-shadow: 0 0 12px rgba(0,200,255,0.2);
}
.code-box:not(:placeholder-shown) {
  border-color: rgba(0,200,255,0.4);
}
.code-box-sep {
  font-size: 28px;
  color: var(--text-dim);
  font-weight: 300;
  margin: 0 2px;
  line-height: 1;
  user-select: none;
}

/* Link input — wider, URL-style */
.link-input-field {
  width: 100%;
  text-align: left !important;
  font-size: 13px !important;
  letter-spacing: 0 !important;
  color: var(--text) !important;
  padding: 12px 14px !important;
}
.link-input-field::placeholder { color: var(--text-dim) !important; }
.link-input-field:focus { color: var(--cyan) !important; }

/* Shake animation for invalid input */
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-5px); }
  80%      { transform: translateX(5px); }
}
.shake { animation: shake 0.45s var(--ease); }

/* ── Responsive mobile tweaks ─────────────────────────────────── */
@media (max-width: 400px) {
  .code-box { width: 40px; height: 52px; font-size: 22px; }
  #code-input-row { gap: 5px; }
  .code-box-sep { font-size: 22px; }
}

/* ═══════════════════════════════════════════════════════════════
   RESIZABLE VIDEO PLAYER
   ═══════════════════════════════════════════════════════════════ */

/* ── Player shell ─────────────────────────────────────────────── */
.player-shell {
  position: relative;
  width: 100%;
  height: auto;
  min-width: 320px;
  max-width: 1920px;       /* allow up to 1920×1080 */
  aspect-ratio: unset;
  background: #000;
  border-radius: 10px;
  border: 1px solid var(--border);
  overflow: visible !important;
  transition: width 300ms var(--ease), height 300ms var(--ease),
              box-shadow 200ms var(--ease);
  align-self: center;
  cursor: default;
}
.player-shell.player-resizing {
  transition: width 280ms var(--ease), height 280ms var(--ease);
}
.player-shell.player-dragging {
  transition: none;
  cursor: nwse-resize;
  user-select: none;
}
.player-shell > video {
  width: 100%; height: 100%;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  transition: object-fit 200ms;
}

/* ── Fit-width preset ─────────────────────────────────────────── */
.player-shell.player-fit-width {
  width: 100% !important;
  height: auto !important;
  aspect-ratio: 16 / 9;
}

/* ── Floating toolbar ─────────────────────────────────────────── */
.player-toolbar {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(5, 12, 28, 0.88);
  border: 1px solid rgba(0,200,255,0.25);
  border-radius: 40px;
  padding: 5px 10px;
  backdrop-filter: blur(12px);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
  white-space: nowrap;
  box-shadow: 0 4px 24px rgba(0,0,0,0.6), 0 0 0 1px rgba(0,200,255,0.08);
}
.player-toolbar.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Toolbar button group */
.ptb-group { display: flex; align-items: center; gap: 2px; }

/* Toolbar separator */
.ptb-sep {
  width: 1px; height: 18px;
  background: rgba(0,200,255,0.15);
  margin: 0 4px;
}

/* Toolbar buttons */
.ptb-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 20px;
  color: rgba(192,216,240,0.7);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 140ms var(--ease);
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
}
.ptb-btn:hover {
  background: rgba(0,200,255,0.12);
  border-color: rgba(0,200,255,0.3);
  color: var(--cyan);
}
.ptb-btn.active {
  background: rgba(0,200,255,0.18);
  border-color: rgba(0,200,255,0.5);
  color: var(--cyan);
  box-shadow: 0 0 8px rgba(0,200,255,0.2);
}
.ptb-btn svg { flex-shrink: 0; }
.ptb-fs { padding: 5px 8px; }

/* ── Drag resize handle (bottom-right corner) ─────────────────── */
.player-resize-handle {
  position: absolute;
  bottom: -8px; right: -8px;
  width: 28px; height: 28px;
  background: rgba(5,15,35,0.9);
  border: 1px solid rgba(0,200,255,0.35);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  cursor: nwse-resize;
  z-index: 110;
  color: var(--cyan-dim);
  opacity: 0;
  transition: opacity 220ms var(--ease), color 140ms var(--ease),
              border-color 140ms var(--ease), transform 140ms var(--ease);
}
.player-shell:hover .player-resize-handle,
.player-shell.player-dragging .player-resize-handle { opacity: 1; }
.player-resize-handle:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: scale(1.15);
  box-shadow: 0 0 10px rgba(0,200,255,0.3);
}
:fullscreen .player-resize-handle,
:-webkit-full-screen .player-resize-handle { display: none; }

/* ── Size badge (flashes during resize) ───────────────────────── */
.player-size-badge {
  position: absolute;
  top: 12px; right: 14px;
  background: rgba(5,12,28,0.82);
  border: 1px solid rgba(0,200,255,0.3);
  border-radius: 4px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 8px;
  z-index: 90;
  opacity: 0;
  transition: opacity 200ms var(--ease);
  pointer-events: none;
  backdrop-filter: blur(6px);
}
.player-size-badge.visible { opacity: 1; }

/* ── Keyboard hint strip ──────────────────────────────────────── */
.player-key-hint {
  width: 100%;
  text-align: center;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  padding: 2px 0 4px;
  animation: fadeUp 0.5s var(--ease);
}
.player-key-hint kbd {
  display: inline-block;
  background: rgba(0,200,255,0.08);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan-dim);
  line-height: 1.6;
}

/* ── Fullscreen ───────────────────────────────────────────────── */
:fullscreen .player-shell,
:-webkit-full-screen .player-shell {
  width: 100vw !important;
  height: 100vh !important;
  max-width: 100vw;
  border-radius: 0;
  border: none;
}
:fullscreen video,
:-webkit-full-screen video {
  border-radius: 0;
  object-fit: contain;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 480px) {
  .player-toolbar  { bottom: 10px; padding: 4px 8px; }
  .ptb-btn         { padding: 4px 8px; font-size: 10px; letter-spacing: 0.5px; }
  .player-resize-handle { width: 24px; height: 24px; bottom: -6px; right: -6px; }
  .player-key-hint { font-size: 10px; }
}