:root {
  color-scheme: dark;
  --bg-a: #0a1b2a;
  --bg-b: #0f2740;
  --card: #0f1722;
  --card-border: #28415d;
  --text: #e8f0fb;
  --muted: #9cb6d1;
  --accent: #2f84da;
  --accent-hover: #3f93e7;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px circle at 20% 0%, #1c3e61 0%, transparent 55%),
    linear-gradient(160deg, var(--bg-a), var(--bg-b));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.card {
  width: min(420px, 96vw);
  background: linear-gradient(180deg, #122133, var(--card));
  border: 1px solid var(--card-border);
  border-radius: 14px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  padding: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, #5db6ff, #2f84da);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

h1 {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: 0.2px;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.login {
  display: grid;
  gap: 8px;
}

label {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.85rem;
}

input {
  height: 42px;
  border-radius: 10px;
  border: 1px solid #36506a;
  background: #0d1826;
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(47, 132, 218, 0.25);
}

button {
  margin-top: 14px;
  height: 42px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

button:hover {
  background: var(--accent-hover);
}

.note {
  margin: 16px 0 0;
  color: #ffcc80;
  font-size: 0.85rem;
}