:root {
  --bg-0: #0a0d12;
  --bg-1: #0e1117;
  --bg-2: #161b22;
  --bg-3: #1c2129;
  --bg-4: #2d333b;
  --border: #2d333b;
  --text-0: #fff;
  --text-1: #e6e6e6;
  --text-2: #9aa0a6;
  --accent: #ffb84a;
  --blue: #4a90e2;
  --green: #36b475;
  --red: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-0);
  color: var(--text-1);
  font-family: -apple-system, system-ui, sans-serif;
}

.wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: 24px 18px 60px;
  min-height: 100vh;
}

.logo {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin: 12px 0 28px;
}

.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 16px;
}

h1 { font-size: 19px; color: var(--text-0); margin: 0 0 4px; }
h2 { font-size: 15px; color: var(--text-0); margin: 0 0 12px; }
.sub { color: var(--text-2); font-size: 13px; margin: 0 0 18px; }

label { display: block; font-size: 13px; color: var(--text-2); margin: 14px 0 6px; }
label:first-child { margin-top: 0; }

input, select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-0);
  font-size: 15px;
}
input:focus, select:focus { outline: none; border-color: var(--blue); }

button {
  width: 100%;
  padding: 13px;
  margin-top: 20px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #14100a;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
}
button:active { opacity: 0.85; }
button.secondary { background: var(--bg-4); color: var(--text-0); }
button.link {
  width: auto;
  background: none;
  color: var(--blue);
  font-weight: 500;
  padding: 4px 0;
  margin: 8px 0 0;
}

.row { display: flex; gap: 10px; }
.row button { margin-top: 10px; }

.msg { font-size: 13px; margin-top: 12px; padding: 10px 12px; border-radius: 8px; display: none; }
.msg.error { display: block; background: rgba(255,107,107,0.12); color: var(--red); }
.msg.ok { display: block; background: rgba(54,180,117,0.12); color: var(--green); }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 4px; }
.stat { background: var(--bg-3); border-radius: 10px; padding: 12px; }
.stat .v { font-size: 18px; font-weight: 700; color: var(--text-0); }
.stat .l { font-size: 11px; color: var(--text-2); margin-top: 2px; }

.ref-box {
  background: var(--bg-3);
  border-radius: 10px;
  padding: 12px;
  font-size: 12px;
  word-break: break-all;
  color: var(--blue);
}

.footer-link { text-align: center; margin-top: 8px; }
.footer-link a, .footer-link button.link { color: var(--text-2); font-size: 13px; }

.channel-btns { display: flex; gap: 10px; }
.channel-btns button { margin-top: 12px; }

.hidden { display: none !important; }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255,184,74,0.15);
  color: var(--accent);
}