:root {
  --bg: #07111f;
  --card: rgba(255, 255, 255, 0.08);
  --text: #f8fafc;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.12);
  --accent: #38bdf8;
  --success: #22c55e;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.25), transparent 35%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.16), transparent 38%),
    var(--bg);
  min-height: 100vh;
}

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

.login-card {
  width: min(460px, 100%);
  border: 1px solid var(--border);
  background: var(--card);
  backdrop-filter: blur(18px);
  border-radius: 30px;
  box-shadow: var(--shadow);
  padding: 32px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: 2.3rem;
  line-height: 1;
}

.subtitle {
  margin: 0 0 26px;
  color: var(--muted);
  line-height: 1.6;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: #e2e8f0;
  font-weight: 700;
  margin-bottom: 16px;
}

input {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.84);
  color: var(--text);
  border-radius: 16px;
  padding: 14px 15px;
  font-size: 1rem;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

button {
  width: 100%;
  border: 0;
  border-radius: 16px;
  padding: 14px 18px;
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--success));
  font-size: 1rem;
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.message {
  margin-top: 16px;
  min-height: 22px;
  font-weight: 700;
}

.message.error {
  color: var(--danger);
}

.message.success {
  color: #86efac;
}

footer {
  margin-top: 24px;
  text-align: center;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

footer a:hover {
  text-decoration: underline;
}