/* Loading Animations and Transitions */

/* Form loading overlay */
.form-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
}

.form-loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.form-loading-spinner {
    text-align: center;
    color: var(--primary-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

/* Button loading state */
.btn .spinner-border {
    vertical-align: -0.125em;
    margin-right: 0.5rem;
}

/* Fade in/out animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

.fade-out {
    animation: fadeOut 0.3s ease-in forwards;
}

/* Form validation states */
.was-validated .form-control:invalid,
.form-control.is-invalid {
    border-color: #dc3545;
    padding-right: calc(1.5em + 0.75rem);
    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 stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.was-validated .form-control:invalid:focus,
.form-control.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875em;
    margin-top: 0.25rem;
}

/* Loading skeleton for content */
.skeleton {
    background-color: #e9ecef;
    background-image: linear-gradient(90deg, #e9ecef 0px, #f8f9fa 50%, #e9ecef 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 0.25rem;
    display: inline-block;
    line-height: 1;
    width: 100%;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Smooth page transitions */
.page-transition-enter {
    opacity: 0;
    transform: translateY(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 300ms, transform 300ms;
}

.page-transition-exit {
    opacity: 1;
    transform: translateY(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 300ms, transform 300ms;
}

/* Toast notifications */
.toast {
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Progress bar animation */
@keyframes progress-bar-stripes {
    0% { background-position-x: 1rem; }
}

.progress-bar-animated {
    animation: progress-bar-stripes 1s linear infinite;
}

/* Button hover effects */
.btn-hover-scale {
    transition: transform 0.2s ease-in-out;
}

.btn-hover-scale:hover {
    transform: translateY(-2px);
}

/* Ripple effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple:after {
    content: '';
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.ripple:active:after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}