* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrapper {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: center;
}

.login-card {
    background: #ffffff;
    width: 100%;
    max-width: 380px;
    padding: 36px 32px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.login-title {
    margin: 0 0 4px;
    font-size: 24px;
    color: #1e3c72;
    text-align: center;
}

.login-subtitle {
    margin: 0 0 24px;
    font-size: 14px;
    color: #666;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
}

.form-group input:focus {
    outline: none;
    border-color: #2a5298;
    box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.15);
}

.btn-login {
    width: 100%;
    padding: 11px;
    border: none;
    border-radius: 6px;
    background: #2a5298;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.btn-login:hover {
    background: #1e3c72;
}

.btn-login:disabled {
    background: #7d93b8;
    cursor: not-allowed;
}

.form-alert {
    margin-bottom: 16px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
}

.form-alert.error {
    background: #fdecea;
    color: #b3261e;
    border: 1px solid #f5c2c0;
}

.form-alert.success {
    background: #e8f5e9;
    color: #1e7e34;
    border: 1px solid #c3e6cb;
}