:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #5c636b;
  --line: #dfe1e4;
  --accent: #1f5fae;
  --notice-bg: #fff6e0;
  --notice-line: #e6b54a;
  --crit: #b3261e;
  --high: #c2410c;
  --med: #a16207;
  --low: #4d7c0f;
  --unk: #6b7280;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181b;
    --surface: #1e2125;
    --text: #e6e7e9;
    --muted: #a1a7ae;
    --line: #33373d;
    --accent: #7fb0f0;
    --notice-bg: #3a2f14;
    --notice-line: #a8822f;
    --crit: #f2867f;
    --high: #f4a261;
    --med: #e3c46a;
    --low: #a3d36b;
    --unk: #9aa1a9;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  line-height: 1.8;
  font-size: 16px;
}
a { color: var(--accent); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }

.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; padding-top: 18px; padding-bottom: 18px; }
.brand { font-weight: 700; font-size: 1.5rem; color: var(--text); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 8px 28px; font-size: 1.15rem; }
nav a { text-decoration: none; padding: 4px 0; }
nav a[aria-current="page"] { font-weight: 700; text-decoration: underline; }

main { padding-top: 24px; padding-bottom: 48px; }
h1 { font-size: 1.6rem; line-height: 1.4; margin: 8px 0 12px; }
h2 { font-size: 1.2rem; margin: 0 0 8px; }
h3 { font-size: 1rem; margin: 16px 0 4px; }
.lead { color: var(--muted); }
.note, small { color: var(--muted); font-size: 0.9rem; }
.crumb { font-size: 0.9rem; color: var(--muted); margin: 0; }

.ai-notice {
  background: var(--notice-bg);
  border-left: 4px solid var(--notice-line);
  padding: 10px 14px;
  margin: 0 0 24px;
  font-size: 0.95rem;
}
.dates { color: var(--muted); font-size: 0.9rem; margin: -12px 0 20px; }

.warn-box {
  background: var(--notice-bg);
  border: 1px solid var(--notice-line);
  padding: 10px 14px;
  margin: 16px 0;
  border-radius: 6px;
}

section.ex, section.facts, section.source, main > section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 0 0 16px;
}
section.source p[lang="en"] { font-size: 0.95rem; overflow-wrap: anywhere; }
.source-title { font-weight: 700; }
section.source li { overflow-wrap: anywhere; }

.facts table { border-collapse: collapse; width: 100%; }
.facts th, .facts td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
.facts th { width: 12em; color: var(--muted); font-weight: 600; }

.terms dt, .glossary dt { font-weight: 700; }
.terms dd, .glossary dd { margin: 0 0 12px; }
.g-item { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; margin-bottom: 12px; }
.g-read { font-weight: 400; color: var(--muted); font-size: 0.9rem; margin-left: 8px; }

.table-wrap { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
table.list { border-collapse: collapse; width: 100%; }
table.list th, table.list td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
table.list th { font-size: 0.9rem; color: var(--muted); white-space: nowrap; }
table.list td.nowrap { white-space: nowrap; }
details.vector summary { cursor: pointer; color: var(--muted); font-size: 0.85rem; }
details.vector code { font-size: 0.8rem; overflow-wrap: anywhere; color: var(--muted); }
table.list tr:last-child td { border-bottom: none; }

.sev { font-weight: 700; white-space: nowrap; }
.sev-critical { color: var(--crit); }
.sev-high { color: var(--high); }
.sev-medium { color: var(--med); }
.sev-low { color: var(--low); }
.sev-unknown, .sev-none { color: var(--unk); }
.sev-ver { color: var(--muted); font-size: 0.8rem; margin-left: 6px; white-space: nowrap; }

.badge { font-size: 0.8rem; padding: 2px 8px; border-radius: 999px; border: 1px solid; white-space: nowrap; }
.badge-ok { color: var(--low); }
.badge-warn { color: var(--high); }
.badge-none { color: var(--unk); }

/* 意見箱 */
.feedback {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 0 0 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.feedback p { margin: 0; color: var(--text); font-size: 0.95rem; flex: 1 1 320px; }
.feedback-button {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 6px;
  background: var(--accent);
  color: var(--surface);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.feedback-button:hover, .feedback-button:focus { opacity: 0.85; }

.site-footer {border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; padding: 16px 0 32px; }

[hidden] { display: none !important; }

/* 攻撃の流れ（SVG） */
.flow-figure { margin: 8px 0 0; }
svg.flow { display: block; width: 100%; max-width: 640px; height: auto; margin: 0 auto; }
svg.flow-narrow { display: none; max-width: 420px; }
@media (max-width: 560px) {
  svg.flow-wide { display: none; }
  svg.flow-narrow { display: block; }
}
.flow-box { fill: var(--bg); stroke: var(--line); stroke-width: 1.5; }
.flow-num { fill: var(--accent); }
.flow-num-text { fill: var(--surface); font-size: 16px; font-weight: 700; }
.flow-text { fill: var(--text); font-size: 17px; }
.flow-arrow { stroke: var(--muted); stroke-width: 2; }
.flow-arrow-head { fill: var(--muted); }

/* 特集「定番の脆弱性」 */
.past-notice { margin: 0 0 24px; font-size: 0.95rem; color: var(--muted); }
.badge-past { color: var(--accent); font-weight: 600; }

/* 検索欄 */
.search { margin: 0 0 16px; }
.search label { display: block; font-size: 0.9rem; color: var(--muted); margin-bottom: 4px; }
.search input {
  width: 100%;
  padding: 8px 12px;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* トップ: 左に CVE 番号の一覧 */
/* 広いページ: 画面の端から少し（約90px）あけて、左右が同じ余白になるようにする */
/* 画面の幅に合わせて左右の余白を変える（狭い画面でも少しあけ、広い画面でも空きすぎないようにする） */
.wrap.wide { max-width: 1460px; padding-left: clamp(16px, 5vw, 72px); padding-right: clamp(16px, 5vw, 72px); }
.home { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 28px; align-items: start; }
.side {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}
.side h2 { font-size: 1.05rem; margin: 0 0 8px; }
.side .note { margin: 0 0 12px; }
.side-h3 { font-size: 0.95rem; margin: 16px 0 4px; }
.side-h3 .note { font-weight: 400; margin: 0 0 0 4px; font-size: 0.8rem; }
.home-h2 { font-size: 1.4rem; margin: 40px 0 8px; }
.cve-list { list-style: none; margin: 0; padding: 0; }
.cve-list li { padding: 8px 0; border-top: 1px solid var(--line); }
.cve-list a { font-weight: 600; }
.cve-meta { display: block; font-size: 0.8rem; color: var(--muted); line-height: 1.5; }
.home-main h1 { margin-top: 0; }

@media (max-width: 860px) {
  .home { grid-template-columns: minmax(0, 1fr); }
  .side { position: static; max-height: 50vh; }
  .wrap.wide { padding-left: 16px; padding-right: 16px; }
}

/* 解説の中の、用語集へのリンク */
a.gl-link { color: inherit; text-decoration: underline dotted var(--accent); text-underline-offset: 3px; }
a.gl-link:hover, a.gl-link:focus { color: var(--accent); }
.g-item:target { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }

@media (max-width: 640px) {
  h1 { font-size: 1.35rem; }
  .brand { font-size: 1.25rem; }
  nav { font-size: 1.05rem; gap: 4px 18px; }
  table.list thead { display: none; }
  table.list tr { display: block; border-bottom: 1px solid var(--line); padding: 8px 0; }
  table.list td { display: flex; gap: 12px; border: none; padding: 4px 12px; }
  table.list td::before { content: attr(data-label); color: var(--muted); font-size: 0.85rem; min-width: 5em; }
  .facts th { width: 8em; }
}