:root {
  --bg: #0b1220;
  --card: #0f1a2e;
  --text: #e8eefc;
  --muted: #a8b3cf;
  --border: rgba(255,255,255,0.10);
  --focus: rgba(99, 179, 237, 0.35);
  --danger: rgba(239, 68, 68, 0.18);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 700px at 20% 10%, rgba(59,130,246,0.12), transparent 60%),
              radial-gradient(1000px 600px at 80% 30%, rgba(16,185,129,0.10), transparent 55%),
              var(--bg);
  color: var(--text);
}

.page {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px 14px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: rgba(15, 26, 46, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
}

.brand { margin-bottom: 18px; }
.brand-title { font-size: 20px; font-weight: 700; letter-spacing: 0.2px; }
.brand-subtitle { margin-top: 4px; font-size: 13px; color: var(--muted); }

.alert {
  background: var(--danger);
  border: 1px solid rgba(239,68,68,0.35);
  color: #ffd6d6;
  padding: 10px 12px;
  border-radius: 10px;
  margin: 10px 0 14px;
  font-size: 13px;
}

.form { display: grid; gap: 10px; }

.label { font-size: 12px; color: var(--muted); margin-top: 2px; }

.input {
  width: 100%;
  border-radius: 12px;
  padding: 12px 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
}

.input:focus {
  border-color: rgba(99,179,237,0.55);
  box-shadow: 0 0 0 4px var(--focus);
}

.button {
  margin-top: 6px;
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 12px 12px;
  font-weight: 700;
  color: #07101e;
  background: linear-gradient(90deg, rgba(99,179,237,1), rgba(16,185,129,1));
  cursor: pointer;
}

.button:active { transform: translateY(1px); }

.footer-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}