:root {
  --bg: #0b1020;
  --bg2: #111a30;
  --card: #151d31;
  --card2: #1b2540;
  --text: #e9eefb;
  --sub: #8b98b5;
  --line: #273450;
  --accent: #4cd964;
  --accent2: #38bdf8;
  --danger: #f43f5e;
  --ok: #38bdf8;
  --shadow: 0 18px 50px rgba(0, 0, 0, .45);
}

[data-theme="light"] {
  --bg: #eef2f8;
  --bg2: #e3e9f3;
  --card: #ffffff;
  --card2: #f3f6fb;
  --text: #1d2739;
  --sub: #6b7a99;
  --line: #dbe3ef;
  --accent: #18a558;
  --accent2: #0b84c7;
  --danger: #d9264a;
  --ok: #0b84c7;
  --shadow: 0 18px 50px rgba(29, 39, 57, .16);
}

* { box-sizing: border-box; }

html, body {
  min-height: 100%;
  margin: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 14px;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(76, 217, 100, .16), transparent 60%),
    radial-gradient(700px 500px at 100% 110%, rgba(56, 189, 248, .14), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--bg2));
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

.card {
  width: 100%;
  max-width: 360px;
  padding: 22px 20px 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #08111f;
  font-weight: 800;
  font-size: 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

.head-main { min-width: 0; }

h1 {
  margin: 0;
  font-size: 20px;
  letter-spacing: .5px;
}

.sub {
  margin: 3px 0 0;
  color: var(--sub);
  font-size: 11px;
}

.tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: var(--card2);
}

.tab {
  flex: 1;
  height: 32px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--sub);
  font-size: 13px;
  cursor: pointer;
}

.tab.on {
  background: var(--card);
  color: var(--text);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .12);
}

.view { display: block; }

label {
  display: block;
  margin: 10px 0 4px;
  color: var(--sub);
  font-size: 11px;
}

input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  background: var(--card2);
  color: var(--text);
  font-size: 14px;
}

input:focus {
  border-color: var(--accent2);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, .18);
}

input::placeholder { color: #64708b; }

.channel {
  display: flex;
  gap: 6px;
  margin-bottom: 2px;
}

.ch {
  flex: 1;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--sub);
  font-size: 12px;
  cursor: pointer;
}

.ch.on {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(76, 217, 100, .10);
  font-weight: 700;
}

.code-row {
  display: flex;
  gap: 8px;
}

.code-row input { flex: 1; }

.primary {
  width: 100%;
  height: 42px;
  margin-top: 16px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #08111f;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
}

.primary:disabled,
.ghost:disabled {
  opacity: .55;
  cursor: default;
}

.ghost {
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--accent2);
  font-size: 12px;
  white-space: nowrap;
  cursor: pointer;
}

.hint {
  margin: 12px 0 0;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.6;
  text-align: center;
}

.msg {
  margin-bottom: 8px;
  padding: 9px 11px;
  border-radius: 9px;
  background: rgba(244, 63, 94, .12);
  color: var(--danger);
  font-size: 12px;
  line-height: 1.5;
}

.msg.ok {
  background: rgba(56, 189, 248, .12);
  color: var(--ok);
}

.done-mark {
  width: 52px;
  height: 52px;
  margin: 8px auto 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #08111f;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

h2 {
  margin: 6px 0 4px;
  text-align: center;
  font-size: 18px;
}

.done-user {
  margin: 0;
  color: var(--sub);
  text-align: center;
  font-size: 12px;
}

.token-box {
  margin-top: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card2);
}

.token-box code {
  display: block;
  max-height: 72px;
  overflow: auto;
  word-break: break-all;
  color: var(--sub);
  font-size: 10px;
  line-height: 1.5;
}

.token-box .ghost {
  width: 100%;
  margin-top: 8px;
}

#done-close { margin-top: 12px; }

.foot {
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--sub);
  font-size: 9px;
  line-height: 1.7;
  text-align: center;
}

[hidden] { display: none !important; }

@media (max-width: 380px) {
  .card { padding: 18px 14px 14px; border-radius: 18px; }
  h1 { font-size: 18px; }
  input, .primary { height: 38px; }
  .ghost { height: 38px; padding: 0 8px; }
}

@media (max-width: 260px) {
  body { padding: 8px 6px; }
  .card { padding: 14px 10px 10px; }
  .logo { width: 36px; height: 36px; font-size: 18px; }
  .sub { font-size: 10px; }
  input { font-size: 13px; }
}