:root {
  --ink-strong: #111f33;
  --ink: #22324b;
  --ink-soft: #516177;
  --accent: #2058a8;
  --accent-soft: #dbe9fb;
  --line: rgba(17, 31, 51, 0.14);
  --paper: #f6f8fc;
  --card: #ffffff;
  --ok: #0f7b48;
  --risk: #be3131;
}

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

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #fcfdff 0%, #f4f7fc 56%, #fcfdff 100%);
}

.demo-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3.2rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
}

.top-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
}

.top-link:hover {
  color: var(--accent);
}

.hero {
  padding: 1.4rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(145deg, #ffffff, #f5f8ff);
}

.hero-tag {
  margin: 0;
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-weight: 700;
}

.hero h1 {
  margin: 0.45rem 0 0.5rem;
  color: var(--ink-strong);
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(2rem, 5.2vw, 3.1rem);
  line-height: 0.98;
}

.hero p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.panel {
  margin-top: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
}

.panel h2 {
  margin: 0 0 0.75rem;
  color: var(--ink-strong);
  font-size: 1.35rem;
}

.panel p {
  margin: 0;
  line-height: 1.65;
}

.task-box {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 0.85rem;
}

.task-item {
  padding: 0.85rem 0.9rem;
  border-radius: 14px;
  background: var(--paper);
  border: 1px solid rgba(17, 31, 51, 0.08);
}

.task-item strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink-strong);
}

figure {
  margin: 0;
}

.attack-image {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
}

figcaption {
  margin-top: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.5;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.model-card {
  padding: 0.95rem 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #ffffff;
}

.model-card h3 {
  margin: 0 0 0.35rem;
  color: var(--ink-strong);
  font-size: 1.13rem;
}

.model-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.55rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

.model-badge.safe {
  color: var(--ok);
  background: #e8f7ef;
}

.model-badge.risk {
  color: var(--risk);
  background: #fceaea;
}

.model-card ul {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.55;
}

.takeaway {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 16px;
  border: 1px solid rgba(32, 88, 168, 0.25);
  background: var(--accent-soft);
}

.takeaway p {
  margin: 0;
  color: #1f3760;
}

@media (max-width: 860px) {
  .task-box,
  .model-grid {
    grid-template-columns: 1fr;
  }
}