:root {
    --bg-color: #0d1117;
    --surface-color: rgba(22, 27, 34, 0.7);
    --primary-color: #58a6ff;
    --primary-hover: #79c0ff;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --border-color: rgba(240, 246, 252, 0.1);
    --glass-bg: rgba(13, 17, 23, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: radial-gradient(circle at 10% 20%, rgba(88, 166, 255, 0.05) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(238, 130, 238, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 2rem;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

h1 {
    font-weight: 800;
    font-size: 1.8rem;
    background: linear-gradient(135deg, #58a6ff, #d2a8ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 10px rgba(88, 166, 255, 0.2);
}

.controls {
    display: flex;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.4);
    padding: 0.25rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
}

.btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 0.6rem 1.2rem;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.btn.active {
    background: #58a6ff;
    color: #000;
    box-shadow: 0 4px 15px rgba(88, 166, 255, 0.3);
}

.main-content {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Loader */
.loader {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 50vh;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(88, 166, 255, 0.1);
    border-radius: 50%;
    border-top-color: #58a6ff;
    animation: spin 1s ease-in-out infinite;
}

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

.hidden {
    display: none !important;
}

/* Masonry Grid Layout */
.media-grid {
    columns: 1;
    column-gap: 1.5rem;
    animation: fadeIn 0.5s ease-out;
}

@media (min-width: 600px) {
    .media-grid { columns: 2; }
}
@media (min-width: 900px) {
    .media-grid { columns: 3; }
}
@media (min-width: 1200px) {
    .media-grid { columns: 4; }
}

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

.media-card {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: zoom-in;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.media-card img, .media-card video {
    width: 100%;
    height: auto; /* natural aspect ratio */
    display: block; /* removes bottom spacing gap */
    transition: transform 0.5s ease;
}

.media-card:hover img, .media-card:hover video {
    transform: scale(1.03);
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 1rem 1rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.badge {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dl-btn {
    background: rgba(255,255,255,0.9);
    color: #000;
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.dl-btn:hover {
    background: #fff;
    transform: scale(1.05);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.lightbox-content img, .lightbox-content video {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    transition: color 0.2s;
}

.lightbox-close:hover {
    color: var(--primary-color);
}

.download-btn {
    background: var(--primary-color);
    color: #000;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
}

@media (max-width: 600px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    .controls {
        width: 100%;
    }
    .btn {
        flex: 1;
        text-align: center;
    }
}