/* transitions.css - Universal page transitions for Teacher Atik */

/* Page transition styles */
body {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
}

body.loaded {
    opacity: 1;
    transform: translateY(0);
}

body.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

/* Smooth transitions for interactive elements */
a, button {
    transition: all 0.2s ease;
}

a:hover, button:hover {
    transform: translateY(-1px);
}

/* Enhanced hover effects for buttons */
a.back-button:hover, .bookmark-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Loading spinner */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.page-loader.show {
    opacity: 1;
    pointer-events: all;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #4a90e2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    color: #666;
    font-family: Arial, sans-serif;
    font-size: 14px;
}

/* Prevent flash of unstyled content */
body:not(.loaded) {
    visibility: hidden;
}

body.loaded {
    visibility: visible;
}

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

/* Enhanced card transitions */
.card, .bookmark-card {
    transition: all 0.3s ease;
}

.card:hover, .bookmark-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

/* Table row transitions */
table tr {
    transition: background-color 0.2s ease;
}

table tr:hover {
    background-color: rgba(74, 144, 226, 0.05);
}