/* === BASE STYLES === */:root {
      --c1: #1a0a2e;
      --c2: #2d0050;
      --c3: #6b0080;
      --acc: #d400ff;
      --acc2: #ff00cc;
      --acc3: #b44fff;
      --gold: #e8b4ff;
      --bg: #0d0618;
      --bg2: #150825;
      --bg3: #1e0a35;
      --fg: #f0e6ff;
      --fg2: #c9a8ff;
      --fg3: #9d6ec5;
      --sp1: 0.5rem;
      --sp2: 1rem;
      --sp3: 1.5rem;
      --sp4: 2rem;
      --sp5: 3rem;
      --sp6: 5rem;
      --rad: 12px;
      --rad2: 20px;
      --rad3: 50px;
      --shadow: 0 8px 32px rgba(212,0,255,0.2);
      --shadow2: 0 16px 48px rgba(212,0,255,0.35);
      --shadow3: 0 4px 16px rgba(0,0,0,0.5);
      --glow: 0 0 20px rgba(212,0,255,0.4), 0 0 60px rgba(212,0,255,0.15);
      --trans: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html, body {
      overflow-x: hidden;
      max-width: 100vw;
      background-color: var(--bg);
      color: var(--fg);
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
      font-size: 16px;
      line-height: 1.7;
      scroll-behavior: smooth;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 var(--sp2);
    }

    h1, h2, h3, h4 {
      font-weight: 800;
      line-height: 1.2;
      color: var(--fg);
    }

    h1 { font-size: clamp(2rem, 5vw, 4rem); }
    h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); margin-bottom: var(--sp3); }
    h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); margin-bottom: var(--sp2); }

    p { color: var(--fg2); line-height: 1.8; margin-bottom: var(--sp2); }
    p:last-child { margin-bottom: 0; }

    a { color: var(--acc); text-decoration: none; transition: var(--trans); }
    a:hover { color: var(--acc2); text-decoration: underline; }

    strong { color: var(--fg); font-weight: 700; }

    ul, ol { padding-left: 1.4rem; }
    li { color: var(--fg2); margin-bottom: var(--sp1); }

    section { padding: var(--sp6) 0; position: relative; overflow: hidden; }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.75rem 2rem;
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--rad3);
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: var(--trans);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--acc), var(--acc2));
      color: #fff;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }
    .btn-primary::before {
      content: '';
      position: absolute;
      top: 0; left: -100%;
      width: 100%; height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
      transition: left 0.5s ease;
    }
    .btn-primary:hover::before { left: 100%; }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow2);
      color: #fff;
      text-decoration: none;
    }

    .btn-outline {
      background: transparent;
      color: var(--acc);
      border: 2px solid var(--acc);
    }
    .btn-outline:hover {
      background: var(--acc);
      color: #fff;
      text-decoration: none;
    }

    /* Cards */
    .card {
      background: linear-gradient(145deg, var(--bg3), var(--bg2));
      border: 1px solid rgba(212,0,255,0.2);
      border-radius: var(--rad2);
      padding: var(--sp3);
      transition: var(--trans);
      position: relative;
      overflow: hidden;
    }
    .card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--acc), var(--acc2));
      opacity: 0;
      transition: var(--trans);
    }
    .card:hover {
      transform: translateY(-4px);
      border-color: rgba(212,0,255,0.5);
      box-shadow: var(--shadow2);
    }
    .card:hover::before { opacity: 1; }

    /* Highlight boxes */
    .highlight-box {
      background: linear-gradient(145deg, rgba(107,0,128,0.3), rgba(29,8,53,0.8));
      border: 1px solid rgba(212,0,255,0.25);
      border-radius: var(--rad2);
      padding: var(--sp3);
      transition: var(--trans);
    }
    .highlight-box:hover {
      border-color: rgba(212,0,255,0.5);
      box-shadow: var(--shadow);
      transform: translateY(-3px);
    }
    .highlight-box h3 {
      color: var(--acc);
      font-size: 1.05rem;
    }

    /* Info card */
    .info-card {
      background: linear-gradient(135deg, rgba(107,0,128,0.25), rgba(13,6,24,0.9));
      border: 1px solid rgba(212,0,255,0.3);
      border-radius: var(--rad2);
      padding: var(--sp4);
      margin-top: var(--sp3);
    }
    .info-card h3 { color: var(--acc); margin-bottom: var(--sp2); }

    /* Definition list */
    .definition-list { margin: var(--sp2) 0; }
    .definition-list dt {
      color: var(--acc2);
      font-weight: 700;
      margin-top: var(--sp2);
    }
    .definition-list dd {
      color: var(--fg2);
      margin-left: var(--sp3);
      margin-bottom: var(--sp1);
    }

    /* Feature list */
    .feature-list li {
      padding: 0.3rem 0;
      position: relative;
      list-style: none;
      padding-left: 1.5rem;
    }
    .feature-list li::before {
      content: '▸';
      position: absolute;
      left: 0;
      color: var(--acc);
    }

    /* Checklist */
    .checklist { list-style: none; padding-left: 0; }
    .checklist li {
      padding: 0.5rem 0 0.5rem 2rem;
      position: relative;
      border-bottom: 1px solid rgba(212,0,255,0.1);
    }
    .checklist li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--acc);
      font-weight: 900;
    }

    /* Cards grid */
    .cards-grid {
      display: grid;
      gap: var(--sp3);
      margin: var(--sp3) 0;
    }
    .cards-grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
    .cards-grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

    /* Tables */
    .table-responsive {
      border-radius: var(--rad);
      overflow-x: auto;
      border: 1px solid rgba(212,0,255,0.2);
    }
    .feature-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.95rem;
    }
    .feature-table thead {
      background: linear-gradient(135deg, var(--acc), var(--c3));
    }
    .feature-table thead th {
      color: #fff;
      padding: var(--sp2) var(--sp3);
      font-weight: 700;
      text-align: left;
      white-space: nowrap;
    }
    .feature-table tbody tr {
      border-bottom: 1px solid rgba(212,0,255,0.1);
      transition: var(--trans);
    }
    .feature-table tbody tr:hover { background: rgba(212,0,255,0.08); }
    .feature-table tbody td {
      padding: var(--sp2) var(--sp3);
      color: var(--fg2);
    }
    .feature-table tbody td:first-child { color: var(--fg); }

    /* Content images */
    .content-image {
      margin: var(--sp3) 0;
      border-radius: var(--rad);
      overflow: hidden;
      border: 1px solid rgba(212,0,255,0.2);
    }
    .content-image img {
      width: 100%;
      height: auto;
      display: block;
      max-width: 100%;
    }
    .content-image.wide img { width: 100%; }

    /* Promo block */
    .promo-block {
      background: linear-gradient(135deg, rgba(180,79,255,0.15), rgba(107,0,128,0.2));
      border-left: 4px solid var(--acc);
      border-radius: 0 var(--rad) var(--rad) 0;
      padding: var(--sp3) var(--sp4);
      margin-top: var(--sp3);
    }
    .promo-block p { color: var(--fg2); }

    /* Section headings accent */
    .section-heading-accent {
      display: inline-block;
      background: linear-gradient(135deg, var(--acc), var(--acc2));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    /* Divider */
    .section-divider {
      width: 60px;
      height: 4px;
      background: linear-gradient(90deg, var(--acc), var(--acc2));
      border-radius: 2px;
      margin-bottom: var(--sp3);
    }

    /* Accordion */
    .accordion-item {
      background: linear-gradient(145deg, var(--bg3), var(--bg2));
      border: 1px solid rgba(212,0,255,0.2);
      border-radius: var(--rad);
      margin-bottom: var(--sp2);
      overflow: hidden;
      transition: var(--trans);
    }
    .accordion-item:hover { border-color: rgba(212,0,255,0.45); }
    .accordion-header { margin: 0; }
    .accordion-header button {
      width: 100%;
      background: none;
      border: none;
      padding: var(--sp3) var(--sp4);
      text-align: left;
      color: var(--fg);
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: var(--sp2);
      transition: var(--trans);
    }
    .accordion-header button::after {
      content: '+';
      font-size: 1.5rem;
      color: var(--acc);
      font-weight: 300;
      flex-shrink: 0;
      transition: var(--trans);
    }
    .accordion-header button[aria-expanded="true"] { color: var(--acc); }
    .accordion-header button[aria-expanded="true"]::after { transform: rotate(45deg); }
    .accordion-body {
      display: none;
      padding: 0 var(--sp4) var(--sp3);
    }
    .accordion-body.open { display: block; }
    .accordion-body p { color: var(--fg2); }

    /* Badge */
    .badge-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(212,0,255,0.15);
      border: 1px solid rgba(212,0,255,0.3);
      border-radius: var(--rad3);
      padding: 0.3rem 0.8rem;
      font-size: 0.8rem;
      color: var(--acc2);
      font-weight: 600;
    }

    /* === LAYOUT STYLES === */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13,6,24,0.95);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(212,0,255,0.2);
      box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: var(--sp2);
      padding: var(--sp2) var(--sp2);
      flex-wrap: wrap;
    }

    .logo {
      flex-shrink: 0;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      background: rgba(212,0,255,0.1);
      border: 1px solid rgba(212,0,255,0.3);
      border-radius: var(--rad);
      cursor: pointer;
      padding: 0;
      margin-left: auto;
      flex-shrink: 0;
    }
    .hamburger span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--acc);
      border-radius: 2px;
      transition: var(--trans);
    }
    .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .main-nav { margin-left: auto; }
    .nav-list {
      display: flex;
      align-items: center;
      gap: var(--sp2);
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-list a {
      color: var(--fg2);
      font-weight: 600;
      padding: 0.4rem 0.8rem;
      border-radius: var(--rad);
      transition: var(--trans);
    }
    .nav-list a:hover {
      color: var(--acc);
      background: rgba(212,0,255,0.1);
      text-decoration: none;
    }

    .header-inner .btn-primary.cta-button {
      flex-shrink: 0;
      padding: 0.6rem 1.4rem;
      font-size: 0.9rem;
    }

    .site-footer {
      background: linear-gradient(180deg, var(--bg2), #080410);
      border-top: 1px solid rgba(212,0,255,0.2);
      padding: var(--sp5) 0 var(--sp4);
    }
    .footer-inner {
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: var(--sp2);
    }
    .footer-logo { font-size: 1.4rem; color: var(--acc); }
    .footer-copy { color: var(--fg3); font-size: 0.85rem; margin: 0; }
    .footer-disclaimer {
      color: var(--fg3);
      font-size: 0.8rem;
      max-width: 500px;
      opacity: 0.7;
      margin: 0;
    }

    @media (max-width: 767px) {
      .hamburger { display: flex; }

      .header-inner {
        flex-wrap: wrap;
        row-gap: 0;
      }

      .main-nav {
        order: 3;
        width: 100%;
        margin-left: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
      }
      .main-nav.open { max-height: 400px; }

      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--sp2) 0;
        gap: var(--sp1);
      }
      .nav-list a { display: block; width: 100%; }

      .header-inner .btn-primary.cta-button {
        order: 4;
        width: 100%;
        max-width: 100%;
        text-overflow: ellipsis;
        overflow: hidden;
        margin-bottom: var(--sp1);
      }
    }

    @media (min-width: 768px) {
      .hamburger { display: none; }
      .main-nav { display: block !important; max-height: none !important; overflow: visible; }
    }

@media (max-width: 767px) {
      .hamburger { display: flex; }

      .header-inner {
        flex-wrap: wrap;
        row-gap: 0;
      }

      .main-nav {
        order: 3;
        width: 100%;
        margin-left: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
      }
      .main-nav.open { max-height: 400px; }

      .nav-list {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--sp2) 0;
        gap: var(--sp1);
      }
      .nav-list a { display: block; width: 100%; }

      .header-inner .btn-primary.cta-button {
        order: 4;
        width: 100%;
        max-width: 100%;
        text-overflow: ellipsis;
        overflow: hidden;
        margin-bottom: var(--sp1);
      }
    }

@media (min-width: 768px) {
      .hamburger { display: none; }
      .main-nav { display: block !important; max-height: none !important; overflow: visible; }
    }