:root {
  --bg: #0f1419;
  --panel: #1a222c;
  --panel-2: #222c38;
  --border: #2e3a48;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3d9cf0;
  --accent-2: #2a7fd4;
  --danger: #e85d5d;
  --radius: 10px;
  --font: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1a3048 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #243018 0%, transparent 50%),
    var(--bg);
  color: var(--text);
}

.panel {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  backdrop-filter: blur(8px);
}

.login-panel {
  width: min(380px, calc(100% - 2rem));
  margin: 15vh auto 0;
}

.login-panel h1 { margin: 0 0 0.25rem; font-size: 1.75rem; }
.login-panel form { display: grid; gap: 0.85rem; margin-top: 1.25rem; }

.muted { color: var(--muted); font-size: 0.9rem; }

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
}

input[type="password"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
}

input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  border-color: var(--accent);
}

button {
  border: 1px solid var(--accent-2);
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

button:hover { filter: brightness(1.08); }

.error { color: var(--danger); margin: 0; }