:root {
  --bg: #0b0d12; --card: #151922; --card2: #1b212d;
  --fg: #eef2f8; --muted: #8b95a7; --accent: #38d39f; --accent2: #2bb589;
  --danger: #ff5d6c;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; background: var(--bg); color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body { min-height: 100svh; display: flex; justify-content: center; }
.wrap { width: 100%; max-width: 560px; padding: 28px 18px 40px; display: flex; flex-direction: column; gap: 18px; }
.hero { text-align: center; padding: 12px 4px 0; }
.brand { height: 34px; width: auto; display: block; margin: 0 auto 14px; }
.logo { font-weight: 700; letter-spacing: .3px; font-size: 14px; color: var(--accent); }
.bi { color: #eef2f8; font-weight: 800; }
.bh { color: #3b82f6; font-weight: 800; }
.hero h1 { font-size: 26px; line-height: 1.2; margin: 14px 0 8px; }
.sub { color: var(--muted); margin: 0 auto; max-width: 460px; font-size: 15px; }
.card { background: var(--card); border: 1px solid rgba(255,255,255,.05); border-radius: 18px; padding: 22px; }
.hidden { display: none !important; }
.steps { margin: 0 0 18px; padding-left: 20px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.steps b { color: var(--fg); }
.captcha { display: flex; justify-content: center; margin-bottom: 14px; min-height: 0; }
.big { width: 100%; border: 0; border-radius: 14px; padding: 18px; font-size: 18px; font-weight: 700;
  color: #04150f; background: linear-gradient(180deg, var(--accent), var(--accent2)); cursor: pointer; }
.big:disabled { opacity: .5; cursor: default; }
.big:active { transform: translateY(1px); }
.ghost { width: 100%; margin-top: 16px; border: 1px solid rgba(255,255,255,.12); background: transparent;
  color: var(--muted); border-radius: 12px; padding: 12px; font-size: 14px; cursor: pointer; }
.err { color: var(--danger); font-size: 13px; margin: 12px 0 0; text-align: center; }
h2 { margin: 0 0 4px; font-size: 19px; }
.muted { color: var(--muted); font-size: 13px; margin: 0 0 16px; }
.lbl { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
.copyrow { display: flex; gap: 8px; align-items: stretch; }
.code { flex: 1; min-width: 0; background: var(--card2); color: var(--fg);
  border: 1px solid rgba(255,255,255,.12); border-radius: 10px; padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; line-height: 1.5;
  resize: none; overflow: hidden; white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-all; }
.code:focus { outline: none; border-color: rgba(56,211,159,.45); }
.copy { border: 0; border-radius: 10px; padding: 0 16px; background: var(--card2); color: var(--accent);
  font-weight: 600; cursor: pointer; border: 1px solid rgba(56,211,159,.3); }
.copy.done { color: #04150f; background: var(--accent); }
.hint { color: var(--muted); font-size: 13px; margin-top: 18px; line-height: 1.6; }
.hint a { color: var(--accent); }
.moblin { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.08); text-align: center; }
.moblin .lbl { text-align: left; }
.qr { width: 200px; height: 200px; border-radius: 12px; background: #fff; padding: 10px; display: block; margin: 4px auto 12px; }
.onphone { display: inline-block; width: auto; padding: 10px 18px; text-decoration: none; }
.foot { text-align: center; color: var(--muted); font-size: 12px; }
.bl { text-decoration: none; }
.bl:hover { opacity: .85; }
.hero a:hover .brand { opacity: .85; }