:root {
    --bg-main: #000000;
    --bg-card: #0A0A0A;
    --bg-hover: #141414;
    --border-color: #222222;
    --text-main: #FFFFFF;
    --text-muted: #999999;
    --accent: #1189ad;
    --accent-hover: #0d6d8a;
    --accent-glow: rgba(17, 137, 173, 0.4);
    --glass-bg: rgba(10, 10, 10, 0.8);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-glow: 0 0 20px var(--accent-glow);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .font-display {
    font-family: 'Space Grotesk', sans-serif;
}

/* Header */
.marketplace-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    white-space: nowrap;
}

.logo span {
    color: var(--accent);
}

.search-bar {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.search-bar svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-bar input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(17, 137, 173, 0.2);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
}

.nav-tabs {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav-tabs::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 1rem 0;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Layout */
.marketplace-layout {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
    width: min(1400px, 100%);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Product Card */
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(to bottom right, rgba(255,255,255,0.1), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(17, 137, 173, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(17, 137, 173, 0.1);
}

.product-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
}

.card-title-area h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.card-creator {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(17, 137, 173, 0.15);
    color: var(--accent);
    font-weight: 500;
}

.rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: #ffd700;
}

.btn-download {
    background: #1189ad;
    color: #fff;
    border: 1px solid rgba(17, 137, 173, 0.6);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.product-card:hover .btn-download {
    background: #0d6d8a;
    color: #fff;
    border-color: rgba(17, 137, 173, 0.9);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.modal-content {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(17, 137, 173, 0.1);
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text-main);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.modal-icon-large {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.modal-title-area h2 {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.modal-creator {
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.modal-creator span {
    color: var(--accent);
}

.modal-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-version {
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--bg-hover);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.modal-body h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.modal-body p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-box {
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-glow);
}

.w-full { width: 100%; }

/* Responsive */
@media (max-width: 900px) {
    .marketplace-layout {
        padding: 0 1.25rem;
    }
}

@media (max-width: 640px) {
    .header-container {
        flex-wrap: wrap;
    }
    .search-bar {
        order: 3;
        max-width: 100%;
        margin-top: 1rem;
    }
    .modal-header {
        flex-direction: column;
        align-items: flex-start;
    }
}