/* Design System Tokens */
:root {
    --bg-body: #1e1e1e;
    --bg-card: #2c2c2c;
    --bg-element-dark: #1e1e1e;
    --color-red-primary: #ff0000;
    --color-red-hover: #ff0000A0;
    --text-main: #cccccc;
    --text-light: #ffffff;
    --text-muted: #a3a3a3;
    --border-color: #cccccc40;
    --radius-xl: 16px;
    --radius-lg: 12px;
    --transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset & Custom Scrollbar */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
section {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: "Roboto", Arial, sans-serif;
    overflow-x: hidden;
    overflow-y: auto;
    height: 100vh;
    top: 0;
}

/* Ambient Glow Background System */
.glow-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}
.glow-1 {
    position: absolute;
    top: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: rgba(239, 68, 68, 0.08);
    border-radius: 50%;
    filter: blur(100px);
}
.glow-2 {
    position: absolute;
    top: 35%;
    right: -200px;
    width: 500px;
    height: 500px;
    background: rgba(153, 27, 27, 0.04);
    border-radius: 50%;
    filter: blur(130px);
}

/* Layout Structure */
.page-wrapper {
    position: relative;
    z-index: 10;
    padding-top: 50px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    padding-bottom: 80px;
}

header {
    margin-top: 48px;
    margin-bottom: 48px;
}
header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-light);
    letter-spacing: -0.025em;
}
header h1 span {
    background: linear-gradient(to right, #ef4444, #f43f5e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
header p {
    margin-top: 12px;
    color: var(--text-muted);
    font-size: 1rem;
}

/* Control Dashboard Panel */
.control-dashboard {
    background-color: rgba(44, 44, 44, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 16px;
    margin-bottom: 48px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}
@media (min-width: 904px) {
    .control-dashboard {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.interactive-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.filter-group {
    display: flex;
    gap: 8px;
}

.btn-filter {
    background-color: #242424;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
}
.btn-filter:hover {
    color: var(--text-light);
    /* background-color: #333333; */
    border-color: #ff000060;
}
.btn-filter.active {
    background-color: var(--color-red-primary);
    color: var(--text-light);
    box-shadow: 0 10px 15px -3px var(--color-red-glow);
}

.select-sort {
    background-color: #242424;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    outline: none;
    transition: var(--transition);

    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;

    padding: 8px 36px 8px 12px;

    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a3a3a3' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
    background-repeat: no-repeat;
    
    background-position: right 14px center;
}
.select-sort:focus {
    border-color: var(--color-red-primary);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
}

.search-wrapper {
    position: relative;
    width: 100%;
}
@media (min-width: 904px) {
    .search-wrapper {
        max-width: 320px;
    }
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    transition: var(--transition);
}

.search-input {
    width: 100%;
    background-color: #1a1a1a;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 10px 40px 10px 42px;
    font-size: 0.85rem;
    color: var(--text-light);
    outline: none;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--color-red-primary);
    background-color: #222222;
}

.search-wrapper:focus-within .search-icon {
    stroke: var(--color-red-primary);
}

.search-input::placeholder {
    color: #555;
}

.search-clear {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    display: none;
    transition: var(--transition);
    line-height: 1;
    user-select: none;
}
.search-clear:hover {
    color: var(--text-light);
    transform: translateY(-50%) scale(1.1);
}

.assets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
    width: 100%;
}

.asset-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 25px -5px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: var(--transition);
}
.asset-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 30px -5px rgba(0, 0, 0, 0.3);
}

.thumb-container {
    width: 100%;
    aspect-ratio: 16/10;
    background-color: var(--bg-element-dark);
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}
.asset-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}
.asset-card:hover img {
    transform: scale(1.04);
}

.card-details {
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}
.card-details .type-badge {
    align-self: flex-start;
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: #f87171;
    background: #ff00001a;
    border: 1px solid #ff000033;
    padding: 2px 8px;
    border-radius: 6px;
}
.card-details h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-light);
    line-height: 1.3;
}

/* Split-Screen Lightbox Architecture */
.modal-overlay {
    position: fixed;
    z-index: 9999;
    top: 50px;
    left: 0;
    width: 100vw;
    height: calc(100vh - 50px);
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease-in-out;
    padding: 20px;
}
.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 960px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    transform: scale(0.95);
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: grid;
    grid-template-columns: 1fr;
}
@media (min-width: 768px) {
    .modal-box {
        grid-template-columns: 1.2fr 0.8fr;
    }
}
.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-visual-pane {
    background-color: var(--bg-element-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 260px;
}
@media (min-width: 768px) {
    .modal-visual-pane {
        min-height: 480px;
    }
}
.modal-visual-pane img {
    width: 100%;
    height: 100%;
    max-height: 540px;
    object-fit: contain;
}

.modal-meta-pane {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-top: 1px solid var(--border-color);
}
@media (min-width: 768px) {
    .modal-meta-pane {
        border-top: none;
        border-left: 1px solid var(--border-color);
    }
}

.modal-header-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.modal-meta-pane .modal-badge {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #f87171;
    border: 1px solid #ff000033;
    background-color: #ff00001a;
    padding: 3px 8px;
    border-radius: 6px;
}

/* Share Copier Link Element inside Modal */
.btn-modal-share {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 6px;
    transition: var(--transition);
}
.btn-modal-share:hover {
    color: var(--text-light);
    background: #242424;
}

.modal-meta-pane h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-light);
    line-height: 1.2;
    margin-bottom: 24px;
}

.download-action-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Quality Download Buttons Setup */
.btn-download-link {
    width: 100%;
    background-color: #242424;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: var(--transition);
}
.btn-download-link:hover {
    background-color: #333;
    color: var(--text-light);
    border-color: rgba(255, 255, 255, 0.2);
    cursor: pointer;
}
.btn-download-link.hq-premium {
    background-color: var(--color-red-primary);
    color: var(--text-light);
    border-color: transparent;
    box-shadow: 0 10px 20px -5px var(--color-red-glow);
}
.btn-download-link.hq-premium:hover {
    background-color: var(--color-red-hover);
}

/* Stacked Tech Metadata Specs Alignment Layout Block */
.download-meta-specs {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    font-size: 0.75rem;
    line-height: 1.3;
    min-width: 75px;
}
.download-res {
    font-weight: 700;
    color: var(--text-light);
}
.download-size {
    font-weight: 500;
    color: var(--text-muted);
}
/* Color handling adjustments for premium contrast rules */
.btn-download-link.hq-premium .download-res {
    color: #ffffff;
}
.btn-download-link.hq-premium .download-size {
    color: rgba(255, 255, 255, 0.75);
}

.modal-close-trigger {
    position: absolute;
    top: 16px;
    right: 20px;
    color: var(--text-muted);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}
.modal-close-trigger:hover {
    color: var(--text-light);
    transform: scale(1.1);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    font-style: italic;
    color: var(--text-muted);
}