:root {
    --bg: #0a0a0b;
    --bg-elev: #131316;
    --bg-card: #1a1a1f;
    --line: #26262c;
    --text: #f4f4f5;
    --text-dim: #8a8a93;
    --text-mute: #5a5a63;
    --accent: #ff5722;
    --accent-glow: rgba(255, 87, 34, 0.15);
    --display: 'Fraunces', serif;
    --mono: 'JetBrains Mono', monospace;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
  }

  body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' /%3E%3C/svg%3E");
  }

  .grid-bg {
    position: fixed;
    inset: 0;
    background-image: 
      linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
  }

  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 24px 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(10, 10, 11, 0.7);
    border-bottom: 1px solid var(--line);
  }

  .nav-inner {
    width: 100%;
    max-width: 1600px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    font-family: var(--display);
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
  }

  .logo-dot {
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
    animation: pulse 2s ease-in-out infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
  }

  .back-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-dim);
    text-decoration: none;
    padding: 10px 18px;
    border: 1px solid var(--line);
    background: var(--bg-elev);
    transition: all 0.25s;
  }

  .back-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(-3px);
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  /* Project nav (prev/next) — positioned inside gallery, above main image */
  .gallery-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 12px;
  }

  .project-nav-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text);
    text-decoration: none;
    border: 1px solid var(--line);
    background-color: var(--bg-elev);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: all 0.25s;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-width: 140px;
    z-index: 1;
  }

  .project-nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--bg-elev);
    opacity: 0.7;
    z-index: -1;
    transition: opacity 0.25s;
  }

  .project-nav-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .project-nav-btn:hover::before {
    opacity: 0.4;
  }

  .project-nav-prev:hover {
    transform: translateX(-4px);
  }

  .project-nav-next:hover {
    transform: translateX(4px);
  }

  .project-nav-next {
    margin-left: auto;
  }

  @media (max-width: 700px) {
    .project-nav-label { display: none; }
    .project-nav-btn { padding: 12px; min-width: auto; }
  }

  main {
    padding: 120px 32px 80px;
    position: relative;
    z-index: 2;
    max-width: 1920px;
    margin: 0 auto;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 32px;
  }

  .breadcrumb a {
    color: var(--text-dim);
    text-decoration: none;
    transition: color 0.2s;
  }

  .breadcrumb a:hover { color: var(--accent); }
  .breadcrumb-current { color: var(--text); }

  .project {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 56px;
    margin-bottom: 120px;
  }

  .gallery {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .main-image {
    width: 100%;
    aspect-ratio: 16 / 11;
    max-height: 85vh;
    min-height: 480px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg);
    transition: opacity 0.4s;
  }

  .main-image .placeholder {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--text-mute);
  }

  .main-image .placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.4;
    stroke: var(--accent);
  }

  .main-image .placeholder .label {
    font-family: var(--mono);
    font-size: 11px;
    text-transform: lowercase;
    letter-spacing: 0.1em;
    padding: 6px 14px;
    background: var(--bg);
    border: 1px solid var(--line);
  }

  .img-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
    z-index: 3;
  }

  .img-control-btn {
    width: 40px;
    height: 40px;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--line);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
  }

  .img-control-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .img-counter {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 12px;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(8px);
    border: 1px solid var(--line);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    z-index: 3;
  }

  .video-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 12px;
    background: var(--accent);
    color: #0a0a0b;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    z-index: 3;
  }

  /* Thumbnail video play icon */
  .thumb-video-icon {
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    background: rgba(255, 87, 34, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0a0b;
    z-index: 2;
    pointer-events: none;
  }

  .thumb-video-icon svg {
    width: 10px;
    height: 10px;
  }

  .thumbs {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 12px;
    max-width: 900px;
  }

  .thumb {
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--line);
    cursor: pointer;
    transition: all 0.25s;
    overflow: hidden;
    position: relative;
  }

  .thumb:hover {
    border-color: var(--text-dim);
    transform: translateY(-2px);
  }

  .thumb.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
  }

  .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .thumb-placeholder {
    display: none;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    color: var(--text-mute);
  }

  .thumb-placeholder svg {
    width: 40%;
    height: 40%;
    opacity: 0.5;
    stroke: var(--text-mute);
  }

  .info-panel {
    position: sticky;
    top: 120px;
    align-self: start;
  }

  .project-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 24px;
  }

  .project-title {
    font-family: var(--display);
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 32px;
  }

  .project-title .italic {
    font-style: italic;
    color: var(--accent);
  }

  .project-desc {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
  }

  .specs {
    margin-bottom: 40px;
  }

  .specs-title {
    font-size: 11px;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
  }

  .spec-row {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: 13px;
  }

  .spec-label {
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11px;
  }

  .spec-value {
    color: var(--text);
    font-family: var(--display);
    font-size: 15px;
  }

  .tools-used {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
  }

  .tool-chip {
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
  }

  /* For Sale banner */
  .sale-banner {
    margin-bottom: 32px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.15) 0%, rgba(34, 197, 94, 0.08) 100%);
    border: 1px solid #4ade80;
    position: relative;
    overflow: hidden;
  }

  .sale-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #4ade80, transparent);
    animation: salebar 2.5s ease-in-out infinite;
  }

  @keyframes salebar {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
  }

  .sale-banner-glow {
    position: absolute;
    top: -50%;
    right: -30%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.4) 0%, transparent 60%);
    pointer-events: none;
    animation: salepulse 3s ease-in-out infinite;
  }

  @keyframes salepulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.9; transform: scale(1.15); }
  }

  .sale-banner-content {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    z-index: 2;
  }

  .sale-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: #4ade80;
    color: #0a0a0b;
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    font-weight: 700;
  }

  .sale-tag-dot {
    width: 7px;
    height: 7px;
    background: #0a0a0b;
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
  }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(0.7); }
  }

  .sale-price {
    font-family: var(--display);
    font-size: 22px;
    font-weight: 400;
    color: #4ade80;
    letter-spacing: -0.01em;
  }

  .buy-now-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    background: #4ade80;
    border: 1px solid #4ade80;
    color: #0a0a0b;
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s;
    position: relative;
    z-index: 2;
  }

  .buy-now-btn:hover {
    background: #22c55e;
    border-color: #22c55e;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(74, 222, 128, 0.4);
  }

  /* Roblox available button (detail page) */
  .roblox-available-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: linear-gradient(135deg, #e2231a 0%, #c1180f 100%);
    border: 1px solid #e2231a;
    color: white;
    text-decoration: none;
    margin-bottom: 32px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
  }

  .roblox-available-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s;
  }

  .roblox-available-btn:hover::before {
    left: 100%;
  }

  .roblox-available-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(226, 35, 26, 0.4);
    background: linear-gradient(135deg, #ed3329 0%, #d11d13 100%);
  }

  .roblox-btn-icon {
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .roblox-btn-text {
    flex: 1;
  }

  .roblox-btn-label {
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 4px;
  }

  .roblox-btn-action {
    font-family: var(--display);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: -0.01em;
  }

  .cta-block {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
  }

  .cta-block::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
  }

  .cta-label {
    font-size: 10px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.25em;
    margin-bottom: 12px;
  }

  .cta-title {
    font-family: var(--display);
    font-size: 22px;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: 8px;
  }

  .cta-desc {
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 20px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    text-decoration: none;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #0a0a0b;
    transition: all 0.25s;
    cursor: pointer;
    font-weight: 500;
    width: 100%;
    justify-content: center;
  }

  .btn:hover {
    background: #ff7043;
    border-color: #ff7043;
    transform: translateY(-2px);
  }

  .related {
    padding-top: 80px;
    border-top: 1px solid var(--line);
  }

  .related-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
  }

  .related-title {
    font-family: var(--display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 300;
    letter-spacing: -0.03em;
    line-height: 1;
  }

  .related-title .italic { font-style: italic; color: var(--accent); }

  .related-num {
    font-size: 11px;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
  }

  .view-all {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    color: var(--text-dim);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all 0.2s;
  }

  .view-all:hover { color: var(--accent); }
  .view-all:hover svg { transform: translateX(4px); }
  .view-all svg { transition: transform 0.2s; }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .related-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    text-decoration: none;
    color: var(--text);
    display: block;
  }

  .related-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
  }

  .related-thumb {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-elev);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .related-thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
  }

  .related-card:hover .related-thumb img { transform: scale(1.05); }

  .related-thumb .placeholder-svg {
    display: none;
    width: 50%;
    height: 50%;
    opacity: 0.4;
  }

  .related-info {
    padding: 16px 20px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .related-name {
    font-family: var(--display);
    font-size: 16px;
  }

  .related-type {
    font-size: 10px;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.15em;
  }

  footer {
    padding: 24px 48px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-mute);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    position: relative;
    z-index: 2;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
  }

  @media (max-width: 1000px) {
    nav { padding: 16px 20px; }
    main { padding: 100px 20px 60px; }
    .project { grid-template-columns: 1fr; gap: 32px; }
    .info-panel { position: static; }
    .related-grid { grid-template-columns: 1fr; }
    .thumbs { grid-template-columns: repeat(4, 1fr); max-width: 100%; }
    .main-image { aspect-ratio: 4 / 3; min-height: 280px; }
    footer { padding: 20px; flex-direction: column; gap: 8px; }
    .related-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  }

  @media (min-width: 1001px) and (max-width: 1400px) {
    .thumbs { grid-template-columns: repeat(5, 1fr); }
  }