/* Simple HDR Filter - Apple Quality */
    html {
      filter: contrast(1.05) saturate(1.08) brightness(1.01);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

    body {
      background:
        linear-gradient(90deg, rgba(248, 250, 255, 0) 0%, rgba(210, 220, 255, 0.15) 60%, rgba(185, 205, 255, 0.22) 100%),
        linear-gradient(180deg, #f8faff 0%, #f4f7fc 50%, #eef2fa 100%);
      min-height: 100vh;
      font-family: 'Inter', sans-serif;
      color: #000;
      overflow-x: hidden;
    }

    /* === LOGO / BRAND === */
    .logo {
      position: fixed;
      top: 40px;
      left: 40px;
      display: flex;
      align-items: center;
      gap: 10px;
      z-index: 100;
      text-decoration: none;
      cursor: pointer;
      transition: opacity 0.2s ease;
    }

    .logo:hover {
      opacity: 0.7;
    }

    .d20-container {
      width: 32px;
      height: 32px;
      perspective: 120px;
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: #000;
      letter-spacing: -0.02em;
    }

    /* === HERO SECTION === */
    .hero {
      min-height: 100vh;
      display: grid;
      grid-template-columns: 1fr 1.2fr 1fr;
      align-items: center;
      padding: 120px 60px 80px;
      gap: 60px;
      max-width: 1600px;
      margin: 0 auto;
    }

    /* Left Column - Project Info */
    .hero-left {
      text-align: right;
    }

    .project-title {
      font-size: clamp(2.5rem, 4vw, 4rem);
      font-weight: 800;
      letter-spacing: -0.03em;
      line-height: 1;
      margin-bottom: 20px;
    }

    .project-subtitle {
      font-size: clamp(1.5rem, 2.5vw, 2.2rem);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.1;
      color: #444;
      margin-top: 8px;
    }

    .project-meta {
      display: flex;
      justify-content: flex-end;
      gap: 20px;
      font-size: 14px;
      color: #666;
      margin-bottom: 24px;
    }

    .project-meta span {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .project-meta span::before {
      content: '';
      width: 6px;
      height: 6px;
      background: #999;
      border-radius: 50%;
    }

    .project-tagline {
      font-size: 18px;
      font-weight: 500;
      line-height: 1.5;
      margin-bottom: 8px;
    }

    .project-company {
      font-size: 18px;
      color: #2f6bff;
      text-decoration: none;
      font-weight: 500;
      transition: opacity 0.2s;
    }

    .project-company:hover {
      opacity: 0.7;
    }

    .my-role {
      margin-top: 48px;
    }

    .my-role h3 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .my-role ul {
      list-style: none;
      font-size: 14px;
      color: #333;
      line-height: 1.8;
    }

    /* Center Column - Hero Image */
    .hero-center {
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .hero-image {
      width: 100%;
      max-width: 420px;
      aspect-ratio: 1;
      background: linear-gradient(135deg, #e8f0ff 0%, #f0e8ff 50%, #e8f0ff 100%);
      border-radius: 24px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

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

    .placeholder-icon {
      font-size: 80px;
      opacity: 0.3;
    }

    /* Right Column - About */
    .hero-right {
      max-width: 400px;
    }

    .about-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .about-text {
      font-size: 15px;
      line-height: 1.7;
      color: #333;
    }

    .about-text p {
      margin-bottom: 20px;
    }

    .about-text p::before {
      content: '';
      display: block;
      width: 24px;
      height: 2px;
      background: #2f6bff;
      margin-bottom: 16px;
    }

    .about-text p:first-child::before {
      display: none;
    }

    /* === EXPLORE MORE === */
    .explore-more {
      text-align: center;
      padding: 40px 0 80px;
    }

    .explore-more a {
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      color: #000;
      font-size: 14px;
      font-weight: 500;
      transition: opacity 0.2s;
    }

    .explore-more a:hover {
      opacity: 0.6;
    }

    .explore-more svg {
      width: 24px;
      height: 24px;
      animation: bounce 2s infinite;
    }

    @keyframes bounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(6px); }
    }

    /* === CONTENT SECTIONS === */
    .content-section {
      max-width: 1200px;
      margin: 0 auto;
      padding: 80px 60px;
    }

    .section-header {
      font-size: clamp(1.5rem, 3vw, 2.5rem);
      font-weight: 700;
      margin-bottom: 48px;
      letter-spacing: -0.02em;
    }

    .section-text {
      font-size: 16px;
      line-height: 1.8;
      color: #333;
      max-width: 800px;
    }

    .section-text p {
      margin-bottom: 24px;
    }

    /* Image showcase */
    .image-showcase {
      width: 100%;
      margin: 60px 0;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    }

    .image-showcase img,
    .image-showcase video {
      width: 100%;
      display: block;
    }

    /* Two-column image grid */
    .image-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin: 60px 0;
      align-items: stretch;
    }

    .image-grid .grid-item {
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
      background: #0a0a0a;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .image-grid .grid-item img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    .image-grid .grid-item.placeholder {
      background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #999;
      font-size: 14px;
      font-weight: 500;
      min-height: 200px;
    }

    /* Bullet list */
    .bullet-list {
      list-style: none;
      margin: 32px 0;
    }

    .bullet-list li {
      font-size: 16px;
      line-height: 1.8;
      color: #333;
      padding-left: 24px;
      position: relative;
      margin-bottom: 12px;
    }

    .bullet-list li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 10px;
      width: 8px;
      height: 8px;
      background: #2f6bff;
      border-radius: 50%;
    }

    /* Two column layout */
    .two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      margin: 60px 0;
    }

    .col h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: #666;
    }

    /* Highlight box */
    .highlight-box {
      background: linear-gradient(135deg, rgba(47, 107, 255, 0.08) 0%, rgba(47, 107, 255, 0.03) 100%);
      border-left: 3px solid #2f6bff;
      padding: 32px;
      margin: 40px 0;
      border-radius: 0 12px 12px 0;
    }

    .highlight-box p {
      font-size: 16px;
      line-height: 1.7;
      margin: 0;
    }

    /* === FOOTER NAV === */
    .footer-nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 60px;
      max-width: 1200px;
      margin: 0 auto;
      border-top: 1px solid rgba(0, 0, 0, 0.1);
    }

    .footer-nav a {
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
      color: #000;
      font-size: 16px;
      font-weight: 600;
      transition: opacity 0.2s;
    }

    .footer-nav a:hover {
      opacity: 0.6;
    }

    .footer-note {
      text-align: center;
      padding: 40px 60px 80px;
      font-size: 14px;
      color: #666;
      font-style: italic;
    }

    /* === RESPONSIVE === */
    @media (max-width: 1024px) {
      .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding: 140px 40px 60px;
      }

      .hero-left {
        text-align: center;
      }

      .project-meta {
        justify-content: center;
      }

      .my-role {
        text-align: center;
      }

      .hero-right {
        max-width: 600px;
        margin: 0 auto;
      }

      .two-col {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .content-section {
        padding: 60px 40px;
      }

      .footer-nav {
        padding: 40px;
      }
    }

/* Level uses the existing project presentation, with a generic approach illustration. */
a:focus-visible { outline: 3px solid #234fc5; outline-offset: 6px; border-radius: 3px; }
.skip-link { position: fixed; top: 12px; left: 12px; padding: 12px; background: #fff; color: #000; z-index: 200; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.logo { color: #000; }
.project-period { display: block; font-size: 14px; color: #444; margin-top: 12px; }
.hero-center { flex-direction: column; gap: 20px; min-width: 0; }
.approach-figure .hero-image { flex-direction: column; align-items: stretch; padding: 28px; }
.figure-label { color: #333; font-size: 13px; font-weight: 600; margin-bottom: 24px; }
.approach-step { display: flex; align-items: center; gap: 12px; }
.step-marker { flex: 0 0 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: #fff; color: #234fc5; font-size: 12px; font-weight: 600; }
.approach-step strong { display: block; font-size: 15px; line-height: 1.4; font-weight: 600; }
.approach-step div > span { display: block; color: #444; font-size: 12px; line-height: 1.5; margin-top: 3px; }
.step-connector { height: 24px; flex-shrink: 0; width: 1px; margin-left: 15px; background: #98ade4; }
.approach-figure figcaption { max-width: 420px; color: #444; font-size: 12px; line-height: 1.7; }
.contribution-title { font-size: 18px; line-height: 1.4; letter-spacing: -.02em; margin-bottom: 16px; }
.footer-note { max-width: 1080px; margin: auto; line-height: 1.8; color: #444; }
@media (max-width: 1200px) and (min-width: 1025px) {
  .hero { gap: 32px; padding-left: 40px; padding-right: 40px; }
  .approach-figure .hero-image { padding: 22px; }
}
@media (max-width: 600px) {
  .logo { top: 24px; left: 24px; }
  .hero { padding: 120px 24px 48px; }
  .content-section { padding: 48px 24px; }
  .section-header { margin-bottom: 32px; }
  .two-col { margin: 40px 0; }
  .footer-note { padding: 32px 24px 48px; }
  .footer-nav { padding: 32px 24px; gap: 24px; flex-wrap: wrap; }
  .footer-nav a { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) { .explore-more svg { animation: none; } }
.content-section { scroll-margin-top: 96px; }