:root {
  color-scheme: dark;
  --bg: #0f1220;
  --card: #171b2e;
  --card2: #1d2238;
  --text: #f6f3ea;
  --muted: #aeb4c5;
  --accent: #d7b56d;
  --danger: #ff7b7b;
  --ok: #83e6a1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(215,181,109,.18), transparent 32rem),
    radial-gradient(circle at bottom right, rgba(94,110,170,.25), transparent 34rem),
    var(--bg);
  color: var(--text);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}

.login-card {
  width: min(440px, 100%);
  padding: 34px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.025)), var(--card);
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
}

.brand {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(215,181,109,.12);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: .12em;
  font-size: 12px;
  margin-bottom: 18px;
}

h1 {
  margin: 0;
  font-size: 38px;
  line-height: 1;
}

.subtitle {
  color: var(--muted);
  margin: 12px 0 28px;
  line-height: 1.5;
}

.form {
  display: none;
  gap: 16px;
}

.form.active {
  display: grid;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

input {
  width: 100%;
  border: 1px solid rgba(255,255,255,.12);
  background: var(--card2);
  color: var(--text);
  border-radius: 12px;
  padding: 13px 14px;
  font-size: 16px;
  outline: none;
}

input:focus {
  border-color: rgba(215,181,109,.75);
  box-shadow: 0 0 0 4px rgba(215,181,109,.12);
}

button {
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  padding: 14px 16px;
  background: var(--accent);
  color: #17120a;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

button.secondary {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(255,255,255,.12);
}

.otp-text {
  margin: 0 0 4px;
  color: var(--muted);
  line-height: 1.5;
}

.message {
  min-height: 20px;
  margin: 18px 0 0;
  color: var(--danger);
  font-size: 14px;
}

.message.ok {
  color: var(--ok);
}