:root {
        color-scheme: dark light;
        --ink: #0a0c12;
        --ink-muted: #6b7385;
        --card-bg: rgba(12, 14, 20, 0.65);
        --card-border: rgba(255, 255, 255, 0.1);
        --glow1: #00ffd5;
        --glow2: #0095ff;
        --accent: #70f9a4;
        --cloud: rgba(255, 255, 255, 0.03);
        --bg: #04060d;
      }
      * {
        box-sizing: border-box;
      }
      body {
        font-family: "Space Grotesk", system-ui, -apple-system, Segoe UI, sans-serif;
        margin: 0;
        color: #f8fbff;
        background: radial-gradient(120% 120% at 50% 0%, #0b1324 0%, #05070f 55%, #020306 100%);
        min-height: 100vh;
        line-height: 1.6;
        letter-spacing: 0.01em;
      }
      body::before,
      body::after {
        content: "";
        position: fixed;
        inset: auto auto 10% 5%;
        width: 320px;
        height: 320px;
        background: radial-gradient(circle, rgba(0, 255, 213, 0.12), transparent 70%);
        filter: blur(30px);
        z-index: 0;
        pointer-events: none;
      }
      body::after {
        inset: auto 10% 5% auto;
        width: 420px;
        height: 420px;
        background: radial-gradient(circle, rgba(0, 149, 255, 0.16), transparent 75%);
      }
      main {
        position: relative;
        z-index: 1;
        max-width: 1100px;
        margin: 0 auto;
        padding: 80px 24px 120px;
        display: flex;
        flex-direction: column;
        gap: 64px;
      }
header {
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: left;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--glow1), var(--glow2));
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}
.brand-text {
  font-family: 'Rajdhani', 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #f8fbff;
}
header h1 {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  line-height: 1.1;
  margin: 0;
}
.section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  margin-right: 10px;
  background: rgba(112, 249, 164, 0.15);
  color: #bfe8ff;
  font-size: 0.95rem;
  border: 1px solid rgba(112, 249, 164, 0.35);
}
      header p.lead {
        font-size: 1.2rem;
        max-width: 960px;
        color: var(--ink-muted);
      }
      .chip-row {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
      }
      .chip {
        padding: 8px 16px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.08);
        font-size: 0.9rem;
        letter-spacing: 0.06em;
        text-transform: uppercase;
      }
      .cta-row {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        align-items: center;
        margin-top: 12px;
      }
      .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 14px 28px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        background: linear-gradient(120deg, rgba(0, 255, 213, 0.25), rgba(0, 149, 255, 0.25));
        color: #f0fff8;
        text-decoration: none;
        font-weight: 600;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
      }
      .btn.secondary {
        background: transparent;
        color: var(--ink-muted);
      }
      .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
      }
      .panel {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 28px;
        padding: 32px;
        backdrop-filter: blur(25px);
        box-shadow: 0 30px 80px rgba(2, 5, 14, 0.45);
      }
      h2 {
        margin: 0 0 20px;
        font-size: 1.8rem;
        display: flex;
        align-items: center;
        gap: 12px;
      }
      p {
        margin-top: 0;
        color: rgba(248, 248, 255, 0.85);
      }
      .muted {
        color: var(--ink-muted);
        font-size: 0.95rem;
      }
      .info-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 16px;
        margin-top: 12px;
      }
.stat-card {
  padding: 16px 18px;
  border-radius: 18px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.08);
      }
      .stat-card h3 {
        margin: 0 0 6px;
        font-size: 0.9rem;
        letter-spacing: 0.08em;
        color: var(--ink-muted);
        text-transform: uppercase;
      }
      .stat-card p {
        color: #f8fbff;
        margin: 0;
        font-size: 0.98rem;
      }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.card {
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(248, 248, 255, 0.9);
}
.card h3 {
  margin-top: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  color: var(--ink-muted);
}
.glossary-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 900px) {
  .glossary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 540px) {
  .glossary-grid {
    grid-template-columns: 1fr;
  }
}
      .grid.levels-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
      }
      .level-card {
        --tier-color: #4a5164;
        border-radius: 20px;
        padding: 56px 24px 24px;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.09));
        border: 1px solid rgba(255, 255, 255, 0.08);
        position: relative;
        overflow: hidden;
        border-left: 4px solid var(--tier-color);
        box-shadow: 0 20px 40px rgba(2, 5, 14, 0.35);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
      }
      .level-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
      }
      .level-card::after {
        content: "";
        position: absolute;
        inset: 0;
        border-radius: inherit;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
        pointer-events: none;
      }
      .tier-tag {
        position: absolute;
        top: 14px;
        right: 14px;
        display: inline-flex;
        align-items: center;
        padding: 0 9px;
        border-radius: 999px;
        background: linear-gradient(125deg, rgba(255, 255, 255, 0.1), var(--tier-color));
        border: 1px solid rgba(255, 255, 255, 0.25);
        font-size: 0.46rem;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: #f7fbff;
        font-weight: 600;
        gap: 4px;
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
      }
      .tier-tag strong {
        color: #f7fbff;
        letter-spacing: 0.1em;
      }
      .level-card strong {
        display: block;
        font-size: 1.1rem;
        margin: 16px 0 8px;
      }
      .attr-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 12px;
      }
      .attr-item {
        border-left: 3px solid rgba(255, 255, 255, 0.12);
        padding-left: 14px;
        color: rgba(248, 248, 255, 0.9);
      }
      .attr-label {
        font-size: 0.76rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--ink-muted);
        margin-bottom: 4px;
      }
      .rating-pill {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 2px 10px;
        border-radius: 999px;
        font-size: 0.68rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        border: 1px solid;
        margin-bottom: 4px;
      }
      .rating-value {
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: rgba(0, 0, 0, 0.25);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 0.62rem;
        font-weight: 700;
      }
      .rating-pill--scale {
        font-size: 1rem;
        padding: 5px 16px;
        letter-spacing: 0.12em;
        width: fit-content;
        white-space: nowrap;
      }
      .rating-pill--scale .rating-value {
        width: 22px;
        height: 22px;
        font-size: 0.8rem;
      }
      .rating-0 {
        background: rgba(255, 107, 107, 0.14);
        border-color: rgba(255, 107, 107, 0.4);
        color: #ffb1b1;
      }
      .rating-1 {
        background: rgba(255, 179, 71, 0.14);
        border-color: rgba(255, 179, 71, 0.4);
        color: #ffd49a;
      }
      .rating-2 {
        background: rgba(255, 214, 102, 0.14);
        border-color: rgba(255, 214, 102, 0.45);
        color: #ffe6a8;
      }
      .rating-3 {
        background: rgba(117, 247, 178, 0.14);
        border-color: rgba(117, 247, 178, 0.45);
        color: #a8ffd2;
      }
      .rating-4 {
        background: rgba(100, 210, 255, 0.16);
        border-color: rgba(100, 210, 255, 0.45);
        color: #c2f0ff;
      }
      .attr-copy {
        margin: 4px 0 0;
        color: rgba(248, 248, 255, 0.95);
        font-size: 1rem;
        line-height: 1.55;
      }
      .level-card:nth-child(1) { --tier-color: #4b5161; }
      .level-card:nth-child(2) { --tier-color: #2f7f92; }
      .level-card:nth-child(3) { --tier-color: #2f62c3; }
      .level-card:nth-child(4) { --tier-color: #5b5cf5; }
      .level-card:nth-child(5) { --tier-color: #8c5cf5; }
      .level-card:nth-child(6) { --tier-color: #f25ce0; }
      .divider {
        border: none;
        height: 1px;
        background: radial-gradient(
          circle,
          rgba(255, 255, 255, 0.32),
          rgba(255, 255, 255, 0.04) 65%,
          transparent
        );
        margin: 48px 0 24px;
      }
      .list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: grid;
        gap: 12px;
      }
      .list li {
        padding-left: 1.6rem;
        position: relative;
        color: rgba(248, 248, 255, 0.9);
      }
      .list li::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--accent);
        position: absolute;
        left: 0.4rem;
        top: 0.7em;
        box-shadow: 0 0 10px rgba(112, 249, 164, 0.6);
      }
      .badge-stack {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 12px 0 0;
      }
      .badge {
        padding: 10px 16px;
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.06);
        font-size: 0.9rem;
      }
      footer {
        text-align: center;
        color: var(--ink-muted);
        font-size: 0.9rem;
        padding-bottom: 40px;
      }
      @media (max-width: 720px) {
        .panel {
          padding: 24px;
          border-radius: 22px;
        }
        header {
          text-align: left;
        }
        .cta-row {
          flex-direction: column;
          align-items: flex-start;
        }
      }
      .scale-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 18px;
      }
      .scale-card {
        padding: 18px;
        border-radius: 18px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(255, 255, 255, 0.04);
      }
      .scale-list {
        margin: 0;
        padding: 0;
        list-style: none;
        display: grid;
        gap: 8px;
      }
      .scale-list li {
        display: flex;
        flex-direction: column;
        gap: 6px;
        margin-bottom: 8px;
      }
      .scale-list p {
        margin: 0;
        color: rgba(248, 248, 255, 0.9);
        font-size: 0.9rem;
      }
      .dimension-list {
        margin: 0;
        padding: 0;
        list-style: none;
        display: grid;
        gap: 10px;
      }
      .dimension-list li {
        border-left: 3px solid rgba(255, 255, 255, 0.12);
        padding-left: 12px;
        color: rgba(248, 248, 255, 0.9);
      }
      .dimension-list strong {
        display: block;
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: #6b7385;
      }
      .threat-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 14px;
        margin-top: 16px;
      }
      @media (max-width: 900px) {
        .threat-grid {
          grid-template-columns: repeat(2, minmax(0, 1fr));
        }
      }
      @media (max-width: 540px) {
        .threat-grid {
          grid-template-columns: 1fr;
        }
      }
      .threat-card {
        padding: 16px;
        border-radius: 16px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(255, 255, 255, 0.03);
      }
      .threat-card h3 {
        margin: 0 0 6px;
        font-size: 1rem;
      }
      .cybok-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: grid;
        gap: 12px;
      }
.cybok-list li {
  border-left: 3px solid rgba(255, 255, 255, 0.1);
  padding-left: 14px;
  color: rgba(248, 248, 255, 0.9);
}
.reference-list {
  margin: 0;
  padding-left: 1.25rem;
  color: rgba(248, 248, 255, 0.9);
  display: grid;
  gap: 8px;
}
.reference-list a {
  color: #bfe8ff;
  text-decoration: none;
}
.reference-list a:hover {
  text-decoration: underline;
}
.quick-list,
.guardrail-list,
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}
.contents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.contents-card {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
}
.contents-card h3 {
  margin: 0 0 6px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.contents-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
}
.contents-card a {
  color: #bfe8ff;
  text-decoration: none;
}
.contents-card a:hover {
  text-decoration: underline;
}
      .banner {
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 18px;
        padding: 16px 20px;
        margin-bottom: 18px;
        background: rgba(255, 255, 255, 0.05);
      }
      .quick-list li,
      .guardrail-list li {
        padding-left: 1.4rem;
        position: relative;
      }
      .quick-list li::before,
      .guardrail-list li::before {
        content: "➟";
        position: absolute;
        left: 0;
        color: var(--accent);
      }
      .guardrail-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
      }
      @media (max-width: 720px) {
        .guardrail-grid {
          grid-template-columns: 1fr;
        }
      }
      .guardrail-block {
        padding: 18px;
        border-radius: 18px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(255, 255, 255, 0.04);
      }
      .guardrail-block h3 {
        margin-top: 0;
        font-size: 1rem;
      }
      .faq-item {
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 18px;
        padding: 18px;
        background: rgba(255, 255, 255, 0.04);
      }
      .faq-item h3 {
        margin: 0 0 6px;
        font-size: 1rem;
      }
  .table-wrapper {
    overflow-x: auto;
  }
  table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
  }
  th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(248, 248, 255, 0.92);
  }
  th {
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink-muted);
    font-size: 0.9rem;
  }