/* CRITICAL CSS - Above-the-fold styles loaded inline */

/* Global Improvements */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

/* Core Body & Kaleidoscope Canvas */
body {
    padding-bottom: 150px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: transparent;
    margin: 0;
}

body.modal-open {
    overflow: hidden;
}

#kaleidoscope-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    display: block;
}

/* Frosted Glass: Header */
#main-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    gap: 20px;
}

#header-left {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
}

.header-icon-btn {
    background-color: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    font-size: 1.2em;
    width: 36px;
    height: 36px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-icon-btn:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
    transform: scale(1.05);
}

.header-icon-btn:active {
    transform: scale(0.95);
}

#parent-collective-trigger {
    background-color: #343a40;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.1em;
    width: 44px;
    height: 44px;
    cursor: pointer;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

#parent-collective-trigger:hover {
    background-color: #007bff;
}

#shop-logo-container {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    height: 44px;
}

#shop-logo-container img {
    height: 100%;
    width: auto;
    display: block;
    object-fit: contain;
}

#header-center {
    flex-grow: 1;
    min-width: 200px;
    overflow: hidden;
}

#header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
}

#main-shop-title {
    margin: 0;
    line-height: 1.2;
    color: #2c3e50;
    cursor: pointer;
}

/* Core Layout */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px;
}

@media (min-width: 1000px) {
    .main-content {
        display: grid;
        grid-template-columns: 300px 1fr 380px;
        gap: 25px;
    }
    #left-sidebar { order: 1; }
    #catalog-area { order: 2; }
    #right-sidebar { order: 3; }
}

#right-sidebar, #left-sidebar {
    position: relative;
}

#right-sidebar h3, #left-sidebar h3 {
    margin-top: 0;
    border-bottom: 1px solid #dee2e6;
    padding-bottom: 10px;
    color: #333;
}

/* Frosted Glass: Sidebar Panels */
#filter-controls {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    gap: 15px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

#event-plan-panel {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 85px;
    min-height: 200px; /* Reserve space to prevent layout shift when items are added */
}

/* Filter Controls */
#filter-controls::after {
    content: attr(data-active-filters);
    display: inline-block;
    background: #007bff;
    color: #fff;
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 0.8em;
    margin-left: 10px;
    position: absolute;
    top: 15px;
    right: 15px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-group label {
    font-size: 0.9em;
    font-weight: 500;
    color: #333;
}

.filter-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #f8f8f8;
    cursor: pointer;
    text-align: center;
    font-size: 0.85em;
}

.filter-btn.active {
    background-color: #e7f3ff;
    border-color: #007bff;
    font-weight: bold;
}

#name-filter:not(:placeholder-shown) {
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0,123,255,0.3);
}

/* Catalog Grid */
#catalog-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
    min-height: 420px; /* Reserve space for at least one row of cards - prevents layout shift */
}

/* Skeleton Loading - Critical for perceived performance */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
}

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

.skeleton-card {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    overflow: hidden;
    height: 420px; /* Explicit height matching actual card height - prevents layout shift */
    min-height: 420px; /* Fallback for flex layouts */
}

.skeleton-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(90deg, #e0e0e0 25%, #f0f0f0 50%, #e0e0e0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

.skeleton-content {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.skeleton-title {
    height: 24px;
    width: 70%;
    border-radius: 4px;
}

.skeleton-text {
    height: 16px;
    width: 100%;
    border-radius: 4px;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-footer {
    padding: 15px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skeleton-price {
    height: 20px;
    width: 80px;
    border-radius: 4px;
}

.skeleton-button {
    height: 36px;
    width: 120px;
    border-radius: 5px;
}

/* Loading Message */
#loading-message {
    text-align: center;
    padding: 40px;
    color: #333;
}

/* Toast Notification - visible immediately */
#toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 350px;
    background-color: rgba(34, 139, 34, 0.95);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 0.9em;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

#toast-notification.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Mobile: Move toast below header to prevent overlap */
@media (max-width: 999px) {
    #toast-notification {
        top: 90px;
        right: 15px;
        left: 15px;
        max-width: none;
        font-size: 0.85em;
        padding: 10px 15px;
    }
}