/* ==========================================================================
   Authentication - Login Screen Styles
   ========================================================================== */

.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    animation: fadeIn 0.3s ease;
}

.login-container {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    text-align: center;
    animation: slideDown 0.4s ease;
}

.login-header {
    margin-bottom: 2rem;
}

.login-header h1 {
    color: #667eea;
    font-size: 2rem;
    margin: 0 0 0.5rem 0;
}

.login-header p {
    color: #666;
    font-size: 1rem;
    margin: 0;
}

.login-form {
    margin-bottom: 1.5rem;
}

.login-form .form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
}

.password-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.password-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.error-message {
    color: #ff4757;
    background: #ffebee;
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 600;
    animation: shake 0.3s ease;
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

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

.login-footer {
    margin-top: 2rem;
    color: #999;
    font-size: 0.85rem;
}

.shake {
    animation: shake 0.5s ease;
}