* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    padding: 20px;
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 32px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-header h1 {
    color: #1e3c72;
    font-size: 28px;
    margin-bottom: 6px;
}

.login-header p {
    color: #6b7280;
    font-size: 14px;
}

.form-group {
    margin-bottom: 18px;
    flex: 1;
}

.form-row {
    display: flex;
    gap: 12px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
}

input[type="text"],
input[type="password"],
select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    color: #111827;
    background: #f9fafb;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: #2a5298;
    box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.15);
    background: #ffffff;
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: #1e3c72;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 6px;
    transition: background 0.2s;
}

.btn-login:hover {
    background: #2a5298;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 18px;
    text-align: center;
}

.alert-success {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 18px;
    text-align: center;
}

@media (max-width: 480px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    body {
        padding: 12px;
    }

    .login-card {
        padding: 28px 20px;
    }

    .login-header h1 {
        font-size: 24px;
    }
}