/**
 * ExcelWare - Login Page Styles
 */

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
    margin: 20px;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
}

.login-header p {
    margin: 0.5rem 0 0;
    opacity: 0.9;
}

.login-body {
    padding: 2rem;
}

.form-floating {
    margin-bottom: 1rem;
}

.form-floating input {
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-floating input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    padding: 0.75rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    transition: all 0.3s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

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

.alert {
    border: none;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.2);
}

.form-check {
    margin: 1rem 0;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.form-check-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.app-version {
    text-align: center;
    margin-top: 1.5rem;
    color: #6c757d;
    font-size: 0.875rem;
}

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    backdrop-filter: blur(3px);
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 2rem;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .login-card {
        margin: 10px;
        border-radius: 15px;
    }
    
    .login-header {
        padding: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-body {
        padding: 1.5rem;
    }
}

/* Animation for smooth transitions */
.form-floating input,
.btn-login,
.alert {
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Focus styles for accessibility */
.form-floating input:focus,
.form-check-input:focus,
.btn-login:focus {
    outline: none;
}

/* Loading animation */
@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}