:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-sub: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-lg: 16px;
    --radius-md: 12px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 3rem;
    padding-top: 2rem;
}

.logo-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.badge {
    background: #e0e7ff;
    color: #4338ca;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.subtitle {
    color: var(--text-sub);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-box {
    position: relative;
    background: var(--card-bg);
    border-radius: 50px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    height: 60px;
}

.search-box:focus-within {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.search-icon {
    color: var(--text-sub);
    margin-right: 12px;
}

#searchInput {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.1rem;
    background: transparent;
    color: var(--text-main);
    width: 100%;
}

/* Loading Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid #e2e8f0;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Main Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.meme-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.meme-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.meme-card img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.meme-card .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    padding: 20px 10px 10px;
    opacity: 0;
    transition: opacity 0.3s;
    color: white;
    font-size: 0.875rem;
}

.meme-card:hover .overlay {
    opacity: 1;
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 0;
    color: var(--text-sub);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: wave 2.5s infinite;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0% { transform: rotate(0.0deg) }
    10% { transform: rotate(14.0deg) }
    20% { transform: rotate(-8.0deg) }
    30% { transform: rotate(14.0deg) }
    40% { transform: rotate(-4.0deg) }
    50% { transform: rotate(10.0deg) }
    60% { transform: rotate(0.0deg) }
    100% { transform: rotate(0.0deg) }
}

.tags-cloud {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag-chip {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tag-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #e0e7ff;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    position: relative;
    z-index: 1001;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s;
}

.modal.active .modal-content {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.8);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: background 0.2s;
}

.close-btn:hover {
    background: white;
}

.modal-body {
    display: flex;
    flex-direction: column;
    height: 100%;
}

@media (min-width: 768px) {
    .modal-body {
        flex-direction: row;
        height: 500px;
    }
}

.image-container {
    flex: 2;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow: hidden;
}

.image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: var(--shadow-md);
    border-radius: 8px;
}

.info-container {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border-color);
}

.modal-tags {
    margin: 1rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.stats {
    margin-top: auto;
    margin-bottom: 2rem;
    color: var(--text-sub);
    font-size: 0.9rem;
}

.stat-item {
    margin-right: 1rem;
}

.btn {
    border: none;
    padding: 0.875rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.btn.primary {
    background: var(--primary-color);
    color: white;
}

.btn.primary:hover {
    background: var(--primary-hover);
}

.btn:active {
    transform: translateY(1px);
}

.hidden {
    display: none !important;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    z-index: 2000;
    font-size: 0.9rem;
    animation: fadeUp 0.3s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translate(-50%, 20px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    .search-box { height: 50px; padding: 0 1rem; }
    .container { padding: 1rem; }
    .grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1rem 0;
}

.btn.secondary {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn.secondary:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #f8fafc;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f1f5f9;
}

#pageInfo {
    font-weight: 500;
    color: var(--text-sub);
}

.btn.full-width {
    width: 100%;
    margin-top: 10px;
}