:root {
  font-family: Arial, Helvetica, sans-serif;
  color-scheme: dark;
  --bg: #07111f;
  --card: #0f1d2d;
  --card-border: #26384d;
  --text: #f4f7fb;
  --muted: #9fb0c3;
  --primary: #f28c28;
  --primary-hover: #ff9f3f;
  --input: #0a1624;
  --danger-bg: #3b151a;
  --danger-border: #8e2d38;
  --danger-text: #ffd5d9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(242, 140, 40, 0.16), transparent 30%),
    linear-gradient(135deg, #050b13, var(--bg));
  color: var(--text);
}

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

.login-card {
  width: min(100%, 460px);
  padding: 32px;
  background: rgba(15, 29, 45, 0.96);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
}

.login-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.login-icon {
  display: grid;
  place-items: center;
  flex: 0 0 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary);
  color: #101820;
  font-size: 28px;
  font-weight: 700;
}

.login-label {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(1.55rem, 4vw, 2rem);
}

.login-header p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.alert-error {
  margin-bottom: 20px;
  padding: 13px 14px;
  border: 1px solid var(--danger-border);
  border-radius: 10px;
  background: var(--danger-bg);
  color: var(--danger-text);
}

.login-form {
  display: grid;
  gap: 18px;
}

.form-group {
  display: grid;
  gap: 8px;
}

label {
  font-size: 0.92rem;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  outline: none;
  background: var(--input);
  color: var(--text);
  font-size: 1rem;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(242, 140, 40, 0.16);
}

button {
  min-height: 48px;
  margin-top: 4px;
  border: 0;
  border-radius: 10px;
  background: var(--primary);
  color: #101820;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
}

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

footer {
  margin-top: 24px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 520px) {
  .login-card {
    padding: 24px 20px;
  }

  .login-header {
    flex-direction: column;
  }
}