:root {
  --bg: #f6f7f9; --card: #fff; --text: #1d2330; --sub: #6b7280; --line: #e3e6ea;
  --accent: #5b5bf0; --accent-d: #4646d8; --rec: #ef4444; --ok: #16a34a; --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; }
a { color: var(--accent); text-decoration: none; }
[hidden] { display: none !important; }

.bar { display: flex; align-items: center; gap: 16px; padding: 14px 20px; background: var(--card); border-bottom: 1px solid var(--line); }
.bar .logo { font-weight: 700; color: var(--text); font-size: 17px; }
.bar .logo::first-letter { color: var(--rec); }
.bar .sp { flex: 1; }
.bar a.link, .bar button.link { color: var(--sub); font-size: 14px; background: none; border: 0; cursor: pointer; padding: 0; font: inherit; }

main { max-width: 1080px; margin: 0 auto; padding: 24px 16px 60px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 12px; }
.sub { color: var(--sub); font-size: 13px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 10px; padding: 10px 18px;
  background: var(--accent); color: #fff; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--accent-d); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: #eef0ff; color: var(--accent); }
.btn.ghost:hover { background: #e2e5ff; }
.btn.danger { background: #fdecec; color: var(--rec); }
.btn.big { padding: 14px 28px; font-size: 17px; border-radius: 999px; }
.btn.rec { background: var(--rec); }
.btn.rec:hover { background: #dc2626; }
.btn.sm { padding: 6px 10px; font-size: 13px; border-radius: 8px; font-weight: 500; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.field { margin: 0 0 18px; }
.field > .label { font-weight: 600; font-size: 14px; margin-bottom: 8px; display: block; }
input[type=text], input[type=password], select { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font: inherit; background: #fff; color: var(--text); }
input:focus, select:focus { outline: 2px solid #c7c9ff; border-color: var(--accent); }

.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.seg label { border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 6px; text-align: center; cursor: pointer; font-size: 13px; }
.seg label .ico { display: block; font-size: 22px; line-height: 1.3; }
.seg input { display: none; }
.seg label:has(input:checked) { border-color: var(--accent); background: #f2f3ff; color: var(--accent); font-weight: 600; }
.opts { display: flex; flex-direction: column; gap: 8px; }
.opt { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.opt input { width: 18px; height: 18px; accent-color: var(--accent); }
.vis { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.vis label { border: 1.5px solid var(--line); border-radius: 12px; padding: 10px 12px; cursor: pointer; font-size: 14px; }
.vis label b { display: block; }
.vis label span { color: var(--sub); font-size: 12px; }
.vis input { display: none; }
.vis label:has(input:checked) { border-color: var(--accent); background: #f2f3ff; }

.studio { display: grid; grid-template-columns: 380px 1fr; gap: 20px; align-items: start; }
.stage { background: #111827; border-radius: var(--radius); aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; color: #9ca3af; position: relative; overflow: hidden; }
.stage video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.stage .hint { text-align: center; padding: 20px; font-size: 14px; }
.stage .hint .big { font-size: 40px; display: block; }
.recbar { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--rec); animation: blink 1.2s infinite; }
.paused .dot { animation: none; background: #f59e0b; }
@keyframes blink { 50% { opacity: .25; } }
.timer { font: 600 22px/1 ui-monospace, Menlo, monospace; }
.uplog { color: var(--sub); font-size: 13px; }
.countdown { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 96px; font-weight: 700; color: #fff; background: rgba(0,0,0,.55); }

.done { border: 1.5px solid #bbf7d0; background: #f0fdf4; border-radius: var(--radius); padding: 16px; margin-top: 14px; }
.done .row { display: flex; gap: 8px; margin-top: 8px; }
.done input { flex: 1; }
.warn { border: 1.5px solid #fecaca; background: #fef2f2; border-radius: var(--radius); padding: 12px 16px; margin-top: 14px; color: #991b1b; font-size: 14px; }

.libhead { display: flex; align-items: end; justify-content: space-between; gap: 12px; margin: 36px 0 14px; flex-wrap: wrap; }
.meter { min-width: 240px; font-size: 13px; color: var(--sub); }
.meter .track { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 4px; }
.meter .fill { height: 100%; background: var(--accent); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.vcard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.thumb { aspect-ratio: 16/9; background: #1f2937 center/cover no-repeat; position: relative; display: block; }
.thumb .dur { position: absolute; right: 8px; bottom: 8px; background: rgba(0,0,0,.75); color: #fff; font-size: 12px; padding: 1px 6px; border-radius: 6px; }
.thumb .badge { position: absolute; left: 8px; top: 8px; background: rgba(0,0,0,.65); color: #fff; font-size: 11px; padding: 2px 8px; border-radius: 999px; }
.vbody { padding: 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.vtitle { font-weight: 600; font-size: 15px; word-break: break-all; cursor: text; border-radius: 6px; padding: 2px 4px; margin: -2px -4px; }
.vtitle:hover { background: #f3f4f6; }
.vtitle[contenteditable=true] { outline: 2px solid #c7c9ff; background: #fff; }
.vbody select { padding: 6px 8px; font-size: 13px; }
.vact { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }
.empty { text-align: center; color: var(--sub); padding: 48px 16px; }

.gate { max-width: 400px; margin: 60px auto; }
.gate .btn { width: 100%; margin-top: 6px; }
.err { color: var(--rec); font-size: 14px; min-height: 1.4em; margin-top: 8px; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: #111827; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 14px; z-index: 9; }

/* 視聴ページ */
.watch-main { max-width: 1000px; }
.player { background: #000; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; }
.player video { width: 100%; height: 100%; display: block; }
.w-title { margin-top: 16px; word-break: break-all; }
.w-meta { color: var(--sub); font-size: 14px; }
.w-actions { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.center { display: flex; align-items: center; justify-content: center; min-height: 70vh; }

@media (max-width: 820px) {
  .studio { grid-template-columns: 1fr; }
  .bar { padding: 12px 16px; }
}