:root {
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e8eef4;
  --muted: #93a1b1;
  --accent: #3d9cf0;
  --danger: #f07178;
  --ok: #7fd99a;
  --border: #2b3642;
  --input: #12181f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at top, #1b2838, var(--bg) 55%);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.card {
  width: 100%;
  max-width: 26rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

h1 {
  margin: 0 0 0.35rem;
  font-size: 1.45rem;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

label {
  display: block;
  margin: 0.85rem 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input[type="email"],
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input);
  color: var(--text);
}

button {
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.75rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #041018;
  font-weight: 600;
  cursor: pointer;
}

.flash {
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.flash.error { background: rgba(240, 113, 120, 0.15); color: var(--danger); }
.flash.info { background: rgba(127, 217, 154, 0.12); color: var(--ok); }

.links {
  margin-top: 1.25rem;
  font-size: 0.9rem;
}

.links a { color: var(--accent); text-decoration: none; }

.brand {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}