:root {
  --bg: #0a0b0f; --card: #16181f; --border: rgba(255,255,255,.09);
  --text: #f4f5f7; --muted: #9aa0ac; --accent: #3b82f6; --danger: #f87171; --ok: #34d399;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: grid; place-items: center;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(60% 60% at 30% 20%, rgba(59,130,246,.18), transparent 60%),
              radial-gradient(50% 50% at 80% 30%, rgba(99,102,241,.16), transparent 60%), var(--bg);
  color: var(--text); padding: 24px;
}
.card {
  width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border);
  border-radius: 18px; padding: 28px; box-shadow: 0 30px 80px -30px rgba(0,0,0,.8);
  display: flex; flex-direction: column; gap: 16px;
}
h1 { margin: 0; font-size: 1.25rem; }
p.sub { margin: -8px 0 0; color: var(--muted); font-size: .85rem; }
label { display: flex; flex-direction: column; gap: 6px; font-size: .8rem; color: var(--muted); }
input {
  padding: 12px 14px; border-radius: 11px; border: 1px solid var(--border);
  background: rgba(255,255,255,.04); color: var(--text); font-size: .95rem;
}
input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.2); }
button {
  padding: 12px; border: none; border-radius: 11px; cursor: pointer; font-weight: 600; font-size: .92rem;
  background: linear-gradient(135deg, #3b82f6, #6366f1); color: #fff;
}
button:disabled { opacity: .6; }
.error { color: var(--danger); font-size: .8rem; margin: 0; background: rgba(248,113,113,.1);
  border: 1px solid rgba(248,113,113,.25); padding: 10px; border-radius: 9px; }
.center { text-align: center; }
.muted { color: var(--muted); font-size: .85rem; }
.code { display: flex; gap: 8px; justify-content: center; }
.code input { width: 44px; height: 52px; text-align: center; font-size: 1.4rem; }
.phones { display: flex; flex-direction: column; gap: 8px; }
.phone { padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border);
  background: rgba(255,255,255,.04); color: var(--text); cursor: pointer; font-size: .85rem; text-align: left; }
.badge { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto;
  border-radius: 16px; background: rgba(52,211,153,.15); color: var(--ok); font-size: 1.8rem; }
a.link { color: var(--muted); font-size: .8rem; text-align: center; text-decoration: none; }