:root {
  --bg: #0a0c10;
  --panel: #12151c;
  --border: #232837;
  --text: #e8eaed;
  --muted: #8b93a7;
  --accent: #f5a623;
  --danger: #f0506e;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background: radial-gradient(circle at 20% 20%, #151a24 0%, var(--bg) 60%);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 36px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  flex: none;
}

.brand h1 {
  font-size: 20px;
  margin: 0;
  letter-spacing: 0.02em;
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
  margin: 6px 0 28px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

input[type="password"] {
  background: #0c0f15;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
}

input[type="password"]:focus {
  border-color: var(--accent);
}

button {
  margin-top: 16px;
  background: var(--accent);
  color: #14100a;
  border: none;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { filter: brightness(1.05); }
button:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }

.error {
  color: var(--danger);
  font-size: 13px;
  margin: 10px 0 0;
}