:root {
  --bg: #0f1117;
  --panel: #1a1d27;
  --panel-2: #22263a;
  --text: #e8eaf0;
  --muted: #9aa0b0;
  --accent: #4f8cff;
  --danger: #ff5c5c;
  --ok: #3ddc84;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}

.screen { display: none; flex-direction: column; gap: 16px; width: 100%; }
.screen.active { display: flex; }

/* ---- hero / home ---- */
.hero { text-align: center; margin-top: 12vh; }
.hero .logo {
  font-size: 44px;
  width: 88px; height: 88px;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), #7a4fff);
  border-radius: 24px;
  box-shadow: 0 8px 30px rgba(79, 140, 255, .35);
}
.hero h1 { font-size: 24px; margin-bottom: 6px; }
.hero p { color: var(--muted); }

.btn-list { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

/* ---- bar ---- */
.bar { display: flex; align-items: center; gap: 10px; }
.bar h2 { font-size: 18px; }
.btn-icon { font-size: 22px; line-height: 1; padding: 6px 14px; }

/* ---- buttons ---- */
.btn {
  appearance: none;
  border: none;
  border-radius: var(--radius);
  background: var(--panel-2);
  color: var(--text);
  font-size: 17px;
  font-weight: 600;
  padding: 15px 18px;
  cursor: pointer;
  transition: transform .05s ease, background .15s ease;
  touch-action: manipulation;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #7a4fff); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; border: 1px solid var(--panel-2); color: var(--muted); }
.btn-sm { font-size: 14px; padding: 9px 14px; border-radius: 10px; }
.btn-lg { font-size: 18px; padding: 18px; }

.btn[hidden] { display: none; }
[hidden] { display: none !important; }

/* ---- status ---- */
.status {
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  text-align: center;
}
.status-idle { background: var(--panel); color: var(--muted); }
.status-live { background: rgba(61, 220, 132, .12); color: var(--ok); }
.status-live.warn { background: rgba(255, 92, 92, .12); color: var(--danger); }

.code-box {
  background: var(--panel);
  border: 1px dashed #3a4058;
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.code-box .label { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.code {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: .35em;
  color: var(--accent);
  margin-bottom: 10px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
}

video {
  width: 100%;
  background: #000;
  border-radius: var(--radius);
  aspect-ratio: 16/9;
  object-fit: contain;
}
#bc-preview { transform: scaleX(-1); }

.controls { display: flex; flex-direction: column; gap: 10px; align-items: center; }
.controls .btn { width: 100%; }
.hint { color: var(--muted); font-size: 13px; text-align: center; line-height: 1.5; }

/* ---- panels / lists / inputs ---- */
.panel { background: var(--panel); border-radius: var(--radius); padding: 16px; }
.label { color: var(--muted); font-size: 13px; margin-bottom: 10px; }

.session-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.session-item {
  background: var(--panel-2);
  border-radius: 12px;
  padding: 13px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  border: none;
  color: var(--text);
  font-size: 15px;
  text-align: left;
}
.session-item .code2 { font-weight: 700; color: var(--accent); letter-spacing: .12em; }
.session-item .meta { color: var(--muted); font-size: 13px; }

.row { display: flex; gap: 10px; }
input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid #2c3046;
  border-radius: var(--radius);
  color: var(--text);
  font-size: 16px;
  padding: 13px 16px;
  text-transform: uppercase;
  letter-spacing: .1em;
}
input:focus { outline: none; border-color: var(--accent); }

/* ---- mark menu ---- */
.mark-menu {
  display: flex;
  gap: 10px;
  width: 100%;
  background: var(--panel);
  border-radius: var(--radius);
  padding: 12px;
}
.mark-menu .btn { flex: 1; }

/* ---- log ---- */
.log-box { background: var(--panel); border-radius: var(--radius); padding: 14px; }
.log-box ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.log-box li {
  background: var(--panel-2);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--text);
}
.log-box li b { color: var(--ok); }

/* ---- recordings ---- */
.rec-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--panel-2);
  border-radius: 12px;
  padding: 12px 14px;
}
.rec-item .name { font-size: 14px; word-break: break-all; }
.rec-item .meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.rec-item a { color: var(--accent); text-decoration: none; font-size: 14px; font-weight: 600; white-space: nowrap; }

/* ---- update banner ---- */
#update-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  max-width: 608px;
  margin: 0 auto;
  background: #1d2333;
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .45);
  z-index: 100;
  animation: slideUp .25s ease;
}
#update-banner span { font-size: 14px; }
#update-banner button {
  appearance: none;
  border: none;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 9px 16px;
  cursor: pointer;
  white-space: nowrap;
}
@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}