* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #000000;
}

.login-container {
    background: white;
    padding: 48px;
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 420px;
    border: 1px solid #e2e8f0;
}

.logo {
    text-align: center;
    margin-bottom: 40px;
}

.logo h1 {
    color: #000000;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #000000;
    font-weight: 600;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.2s ease;
    background: #ffffff;
}

.form-group input:focus {
    outline: none;
    border-color: #64748b;
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.1);
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: #4a90e2;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-login:hover {
    background: #357abd;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.btn-login:active {
    transform: translateY(0);
}

.message {
    margin-top: 24px;
    padding: 14px 16px;
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}

.message.success {
    background-color: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.message.error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}