:root {
  --bg: #0f0f14; --bg2: #181822; --fg: #f4f4f8; --muted: #9a9ab0; --accent: #ff4d8d; --accent2: #7c5cff;
  --ok: #3ddc97; --warn: #ffb020; --ng: #ff5c5c; --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; line-height: 1.6; }
a { color: var(--accent); text-decoration: none; }
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
header.site { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
header.site .logo { font-weight: 800; font-size: 22px; letter-spacing: .02em; color: var(--fg); }
header.site nav a { margin-left: 18px; color: var(--muted); font-size: 14px; }
.hero { padding: 60px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(28px, 6vw, 48px); margin: 0 0 12px; line-height: 1.25; }
.hero p { color: var(--muted); font-size: 17px; max-width: 640px; margin: 0 auto 28px; }
.btn { display: inline-block; padding: 12px 24px; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent2)); color: #fff; font-weight: 700; border: 0; cursor: pointer; font-size: 15px; }
.btn.secondary { background: var(--bg2); border: 1px solid #2c2c3a; color: var(--fg); }
.btn.danger { background: var(--ng); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--bg2); border: 1px solid #23232f; border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
section { padding: 32px 0; }
section h2 { font-size: 22px; margin: 0 0 16px; }
footer.site { padding: 40px 0; color: var(--muted); font-size: 13px; text-align: center; border-top: 1px solid #23232f; margin-top: 40px; }
.notice { background: #2a1b22; border: 1px solid var(--accent); border-radius: var(--radius); padding: 16px; margin: 16px 0; font-size: 14px; }
.notice.warn { background: #2a2416; border-color: var(--warn); }
.notice.ok { background: #16281f; border-color: var(--ok); }
.notice.ng { background: #2a1616; border-color: var(--ng); }
.status-pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; background: #2c2c3a; }
.status-pill.live { background: var(--ng); color: #fff; }
.status-pill.waiting { background: var(--warn); color: #000; }
.status-pill.ringing { background: var(--accent2); color: #fff; }
.status-pill.ended { background: #444; }
input, select, textarea { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid #2c2c3a; background: #101018; color: var(--fg); font-size: 15px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 4px; }
.form { max-width: 420px; margin: 0 auto; }
.small { font-size: 12px; color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid #23232f; vertical-align: top; }
.video-stage { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 720px) { .video-stage { grid-template-columns: 2fr 1fr; } }
video { width: 100%; background: #000; border-radius: var(--radius); aspect-ratio: 4 / 3; object-fit: cover; }
.chat { background: var(--bg2); border-radius: var(--radius); padding: 12px; height: 300px; overflow-y: auto; font-size: 14px; }
.chat .msg { margin-bottom: 6px; }
.chat .msg .who { color: var(--muted); font-size: 12px; margin-right: 6px; }
.chat .msg.staff .who { color: var(--warn); }
.countdown { font-variant-numeric: tabular-nums; font-size: 28px; font-weight: 800; }
.steps { counter-reset: s; }
.steps li { list-style: none; position: relative; padding-left: 40px; margin: 12px 0; }
.steps li::before { counter-increment: s; content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--accent2); color: #fff; text-align: center; font-weight: 700; line-height: 28px; font-size: 14px; }