/* ===== CUSTOM PROPERTIES ===== */
      :root {
        --bg-primary: #0a0a0f;
        --bg-secondary: #111118;
        --bg-card: #16161f;
        --bg-card-hover: #1c1c28;
        --bg-accent: #1a1a2e;
        --border: #252535;
        --border-light: #2a2a3d;
        --text-primary: #e8e8f0;
        --text-secondary: #9999aa;
        --text-muted: #666680;
        --accent: #7c6aef;
        --accent-light: #9d8fff;
        --accent-glow: rgba(124, 106, 239, 0.15);
        --accent-warm: #f0a060;
        --link: #8bb4d9;
        --link-hover: #aad0f0;
        --serif: "Instrument Serif", Georgia, serif;
        --sans: "DM Sans", -apple-system, sans-serif;
        --radius: 12px;
        --radius-sm: 8px;
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      }

      /* ===== RESET ===== */
      *,
      *::before,
      *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      html {
        scroll-behavior: smooth;
      }
      body {
        font-family: var(--sans);
        font-size: 15px;
        line-height: 1.7;
        color: var(--text-secondary);
        background: var(--bg-primary);
        -webkit-font-smoothing: antialiased;
      }
      a {
        color: var(--link);
        text-decoration: none;
        transition: color var(--transition);
      }
      a:hover {
        color: var(--link-hover);
      }
      img {
        max-width: 100%;
        height: auto;
        display: block;
      }
      em {
        font-style: italic;
      }
      strong {
        font-weight: 600;
        color: var(--text-primary);
      }

      /* ===== NOISE OVERLAY ===== */
      body::before {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
        pointer-events: none;
        z-index: 9999;
      }

      /* ===== HEADER ===== */
      #site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(10, 10, 15, 0.85);
        backdrop-filter: blur(20px) saturate(1.5);
        -webkit-backdrop-filter: blur(20px) saturate(1.5);
        border-bottom: 1px solid var(--border);
      }
      .header-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 32px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
      }
      .logo {
        display: flex;
        align-items: baseline;
        gap: 10px;
        cursor: pointer;
      }
      .logo-text {
        font-family: var(--serif);
        font-size: 24px;
        color: var(--text-primary);
        letter-spacing: -0.5px;
      }
      .logo-accent {
        display: inline-block;
        width: 8px;
        height: 8px;
        background: var(--accent);
        border-radius: 50%;
        position: relative;
        top: -1px;
        box-shadow: 0 0 12px var(--accent);
      }
      .logo-sub {
        font-size: 12px;
        color: var(--text-muted);
        letter-spacing: 0.5px;
        text-transform: uppercase;
        font-weight: 500;
        display: none;
      }
      @media (min-width: 768px) {
        .logo-sub {
          display: inline;
        }
      }

      /* ===== NAV ===== */
      #main-nav {
        display: flex;
        gap: 2px;
      }
      #main-nav a {
        padding: 8px 16px;
        font-size: 13px;
        font-weight: 500;
        color: var(--text-muted);
        border-radius: 8px;
        transition: all var(--transition);
        letter-spacing: 0.2px;
        position: relative;
        white-space: nowrap;
      }
      #main-nav a:hover {
        color: var(--text-primary);
        background: var(--bg-card);
      }
      #main-nav a.active {
        color: var(--text-primary);
        background: var(--accent-glow);
      }
      #main-nav a.active::after {
        content: "";
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 16px;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
      }

      /* Mobile nav toggle */
      .nav-toggle {
        display: none;
        background: none;
        border: 1px solid var(--border);
        color: var(--text-primary);
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        cursor: pointer;
        font-size: 18px;
      }
      @media (max-width: 900px) {
        .nav-toggle {
          display: block;
        }
        #main-nav {
          display: none;
          position: absolute;
          top: 72px;
          left: 0;
          right: 0;
          background: var(--bg-secondary);
          border-bottom: 1px solid var(--border);
          flex-direction: column;
          padding: 12px;
          gap: 4px;
        }
        #main-nav.open {
          display: flex;
        }
        #main-nav a {
          padding: 12px 16px;
          border-radius: var(--radius-sm);
        }
      }

      /* ===== HERO ===== */
      .hero {
        position: relative;
        padding: 80px 32px 60px;
        text-align: center;
        overflow: hidden;
      }
      .hero::before {
        content: "";
        position: absolute;
        top: -200px;
        left: 50%;
        transform: translateX(-50%);
        width: 800px;
        height: 800px;
        background: radial-gradient(
          circle,
          var(--accent-glow) 0%,
          transparent 70%
        );
        pointer-events: none;
      }
      .hero h1 {
        font-family: var(--serif);
        font-size: clamp(40px, 6vw, 72px);
        color: var(--text-primary);
        line-height: 1.1;
        margin-bottom: 16px;
        position: relative;
        letter-spacing: -1px;
      }
      .hero h1 span {
        color: #b0b0bc;
      }
      .hero p {
        font-size: 18px;
        color: var(--text-muted);
        max-width: 560px;
        margin: 0 auto;
        position: relative;
      }

      /* ===== LAYOUT ===== */
      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 32px;
      }
      .page-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 40px;
        padding-bottom: 80px;
      }
      @media (max-width: 1024px) {
        .page-layout {
          grid-template-columns: 1fr;
        }
      }

      /* ===== PAGE CONTENT ===== */
      .page {
        display: none;
      }
      .page.active {
        display: block;
      }

      .content-section {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 36px 40px;
        margin-bottom: 24px;
        transition: border-color var(--transition);
      }
      .content-section:hover {
        border-color: var(--border-light);
      }
      .content-section h2 {
        font-family: var(--serif);
        font-size: 28px;
        color: var(--text-primary);
        margin-bottom: 24px;
        letter-spacing: -0.5px;
      }
      .content-section h3 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary);
        margin: 24px 0 8px 0;
      }
      .content-section p {
        margin-bottom: 14px;
        color: var(--text-secondary);
        font-size: 14.5px;
        line-height: 1.75;
      }

      /* ===== BOOK CARDS ===== */
      .book-card {
        display: grid;
        grid-template-columns: 240px 1fr;
        gap: 32px;
        padding: 32px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-bottom: 24px;
        transition: all var(--transition);
        position: relative;
        overflow: hidden;
      }
      .book-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 3px;
        height: 100%;
        background: linear-gradient(180deg, var(--accent), transparent);
        opacity: 0;
        transition: opacity var(--transition);
      }
      .book-card:hover {
        border-color: var(--border-light);
        transform: translateY(-2px);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
      }
      .book-card:hover::before {
        opacity: 1;
      }
      .book-card.featured {
        border-color: var(--accent);
        border-width: 1px;
        background: linear-gradient(
          135deg,
          var(--bg-card) 0%,
          var(--bg-accent) 100%
        );
      }
      .book-card.featured::before {
        opacity: 1;
      }
      .book-card.featured .new-badge {
        display: inline-block;
      }
      .new-badge {
        display: none;
        background: linear-gradient(135deg, var(--accent), #5a4fd4);
        color: #fff;
        font-size: 10px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        padding: 4px 12px;
        border-radius: 20px;
        margin-bottom: 12px;
      }
      .book-cover-wrap {
        position: relative;
      }
      .book-cover-wrap img {
        width: 100%;
        border-radius: var(--radius-sm);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        transition: transform var(--transition);
      }
      .book-card:hover .book-cover-wrap img {
        transform: scale(1.02);
      }
      .book-info h3 {
        font-family: var(--serif);
        font-size: 22px;
        color: var(--text-primary);
        margin: 0 0 6px 0;
        line-height: 1.3;
        letter-spacing: -0.3px;
      }
      .book-info .editors {
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 14px;
        font-style: italic;
      }
      .book-info p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.75;
        margin-bottom: 12px;
      }
      .book-links {
        display: flex;
        gap: 12px;
        margin-top: 16px;
        flex-wrap: wrap;
      }
      .book-links a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 18px;
        font-size: 13px;
        font-weight: 500;
        border-radius: 8px;
        transition: all var(--transition);
      }
      .btn-primary {
        background: var(--accent);
        color: #fff !important;
      }
      .btn-primary:hover {
        background: var(--accent-light);
        transform: translateY(-1px);
        box-shadow: 0 4px 16px rgba(124, 106, 239, 0.3);
      }
      .btn-outline {
        border: 1px solid var(--border);
        color: var(--text-secondary) !important;
      }
      .btn-outline:hover {
        border-color: var(--accent);
        color: var(--text-primary) !important;
        background: var(--accent-glow);
      }
      .cover-credit {
        font-size: 12px;
        color: var(--text-muted);
        margin-top: 8px;
        line-height: 1.5;
      }
      @media (max-width: 700px) {
        .book-card {
          grid-template-columns: 1fr;
        }
        .book-cover-wrap img {
          max-width: 240px;
        }
      }

      /* ===== TABLE OF CONTENTS ===== */
      .toc {
        margin-top: 28px;
      }
      .toc-part {
        margin-bottom: 20px;
      }
      .toc-part-title {
        font-size: 12px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: var(--accent-light);
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 10px;
      }
      .toc-part-title::after {
        content: "";
        flex: 1;
        height: 1px;
        background: var(--border);
      }
      .toc-entry {
        padding: 6px 0;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.6;
      }
      .toc-entry .num {
        color: var(--text-muted);
        font-size: 12px;
        font-weight: 500;
        margin-right: 6px;
        min-width: 20px;
        display: inline-block;
      }
      .toc-entry .author {
        font-style: italic;
        color: var(--text-muted);
      }

      /* ===== ABSTRACTS ===== */
      .abstract-card {
        background: var(--bg-accent);
        border-left: 3px solid var(--accent);
        padding: 20px 24px;
        margin-bottom: 16px;
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        transition: all var(--transition);
      }
      .abstract-card:hover {
        background: var(--bg-card-hover);
      }
      .abstract-card h3 {
        font-size: 14px;
        font-weight: 600;
        color: var(--accent-light);
        margin-bottom: 8px;
        text-transform: uppercase;
        letter-spacing: 1px;
      }
      .abstract-card p {
        font-size: 14px;
        margin-bottom: 0;
      }

      /* ===== BIBLIOGRAPHY ===== */
      .bib-heading {
        font-family: var(--serif);
        font-size: 20px;
        color: var(--text-primary);
        margin: 32px 0 16px 0;
        padding-bottom: 8px;
        border-bottom: 1px solid var(--border);
      }
      .bib-heading:first-of-type {
        margin-top: 0;
      }
      .bib-entry {
        font-size: 13.5px;
        color: var(--text-secondary);
        margin-bottom: 10px;
        line-height: 1.65;
        padding-left: 24px;
        text-indent: -24px;
      }

      /* ===== SIDEBAR ===== */
      .sidebar-widget {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 20px;
        margin-bottom: 16px;
        transition: border-color var(--transition);
      }
      .sidebar-widget:hover {
        border-color: var(--border-light);
      }
      .sidebar-widget h3 {
        font-family: var(--serif);
        font-size: 16px;
        color: var(--text-primary);
        margin-bottom: 14px;
        letter-spacing: -0.2px;
      }
      .sidebar-widget img {
        width: 100%;
        border-radius: var(--radius-sm);
        margin-bottom: 10px;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        transition: transform var(--transition);
      }
      .sidebar-widget img:hover {
        transform: scale(1.02);
      }
      .sidebar-widget .caption {
        font-size: 11px;
        color: var(--text-muted);
        line-height: 1.5;
      }
      .contributor-list {
        list-style: none;
        max-height: 400px;
        overflow-y: auto;
        padding-right: 8px;
      }
      .contributor-list::-webkit-scrollbar {
        width: 4px;
      }
      .contributor-list::-webkit-scrollbar-track {
        background: var(--bg-secondary);
        border-radius: 4px;
      }
      .contributor-list::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: 4px;
      }
      .contributor-list li {
        padding: 4px 0;
        font-size: 12.5px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.03);
      }
      .contributor-list li:last-child {
        border-bottom: none;
      }
      .contributor-list li a {
        color: var(--link);
      }
      .contributor-list li::before {
        content: "·";
        color: var(--accent);
        margin-right: 8px;
        font-weight: bold;
      }

      /* ===== FOOTER ===== */
      #site-footer {
        border-top: 1px solid var(--border);
        padding: 40px 32px;
        text-align: center;
      }
      .footer-inner {
        max-width: 1200px;
        margin: 0 auto;
      }
      .footer-logo {
        font-family: var(--serif);
        font-size: 20px;
        color: var(--text-primary);
        margin-bottom: 8px;
      }
      .footer-desc {
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 20px;
      }
      .footer-links {
        display: flex;
        justify-content: center;
        gap: 24px;
        flex-wrap: wrap;
        margin-bottom: 24px;
      }
      .footer-links a {
        font-size: 13px;
        color: var(--text-muted);
        transition: color var(--transition);
      }
      .footer-links a:hover {
        color: var(--text-primary);
      }
      .footer-copy {
        font-size: 11px;
        color: var(--text-muted);
      }

      /* ===== EDITOR CARDS ===== */
      .editor-card {
        display: grid;
        grid-template-columns: 160px 1fr;
        gap: 28px;
        padding: 28px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-bottom: 20px;
        transition: all var(--transition);
      }
      .editor-card:hover {
        border-color: var(--border-light);
        transform: translateY(-2px);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
      }
      .editor-photo {
        width: 160px;
        height: 160px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        background: var(--bg-accent);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
      }
      .editor-photo img {
        width: 100%;
        height: 100%;
        object-fit: cover;
      }
      .editor-photo .initials {
        font-family: var(--serif);
        font-size: 48px;
        color: var(--text-muted);
        opacity: 0.5;
      }
      .editor-info h3 {
        font-family: var(--serif);
        font-size: 20px;
        color: var(--text-primary);
        margin: 0 0 4px 0;
        letter-spacing: -0.3px;
      }
      .editor-info .role {
        font-size: 13px;
        color: var(--accent-light);
        margin-bottom: 12px;
        font-weight: 500;
      }
      .editor-info p {
        font-size: 13.5px;
        color: var(--text-secondary);
        line-height: 1.75;
        margin-bottom: 10px;
      }
      .editor-info .editor-links a {
        font-size: 13px;
        margin-right: 16px;
        color: var(--link);
      }
      @media (max-width: 600px) {
        .editor-card {
          grid-template-columns: 1fr;
        }
        .editor-photo {
          width: 120px;
          height: 120px;
          margin: 0 auto;
        }
      }

      /* ===== ANIMATIONS ===== */
      @keyframes fadeInUp {
        from {
          opacity: 0;
          transform: translateY(20px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }
      .animate-in {
        animation: fadeInUp 0.6s ease-out forwards;
      }
      .animate-delay-1 {
        animation-delay: 0.1s;
        opacity: 0;
      }
      .animate-delay-2 {
        animation-delay: 0.2s;
        opacity: 0;
      }
      .animate-delay-3 {
        animation-delay: 0.3s;
        opacity: 0;
      }
      .animate-delay-4 {
        animation-delay: 0.4s;
        opacity: 0;
      }