/* Enhanced UI and Best Practices CSS */

/* Navbar scroll effect */
.navbar-scrolled {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
}

/* Button hover effects */
.btn {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Form improvements */
.form-control:focus {
    border-color: #0066cc;
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.form-control.is-valid {
    border-color: #00a86b;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2300a86b' d='m2.3 6.73.94-.94 1.44 1.44L7.42 4.5 8 5.07l-3.46 3.46-2.7-2.7z'/%3e%3c/svg%3e");
}

.form-control.is-invalid {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.5 5.5 1 1m0-1-1 1'/%3e%3c/svg%3e");
}

.field-error {
    font-size: 0.875em;
    margin-top: 0.25rem;
}

/* Loading state */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Modal improvements */
.modal {
    backdrop-filter: blur(5px);
}

.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 12px 12px 0 0;
}

/* Alert notifications */
.alert {
    border-radius: 8px;
    border: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.alert-success {
    background-color: #d1f2eb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-info {
    background-color: #bee5eb;
    color: #0c5460;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Logo hover effect */
.navbar-brand img {
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

/* Card hover effects */
.card {
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Accessibility improvements */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

/* Loading animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .hero .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .modal-dialog {
        margin: 1rem;
    }
}

/* Success animation */
@keyframes slideInFromTop {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.alert {
    animation: slideInFromTop 0.5s ease-out;
}

/* Modern gradients */
.gradient-text {
    background: linear-gradient(135deg, #0066cc, #00a86b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Professional spacing */
.section-padding {
    padding: 5rem 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 3rem 0;
    }
}