/* 図の読み書き。style.css と flow.css の上に重ねる */
.fhead p a, .srcl a, .dg-links a, .dg-src a, .dg-umlk a, .dg-c4 a { color: #1d4ed8; text-underline-offset: 2px; }
.hint { display: inline-block; vertical-align: middle; font-size: 10.5px; font-weight: 700; line-height: 1.5; color: #475569; background: #f8fafc; border: 1px dashed #94a3b8; border-radius: 999px; padding: 0 8px; margin-left: 6px; white-space: nowrap; }
.aitag { font-size: 12px; font-weight: 700; color: #6d28d9; background: #ede9fe; border-radius: 6px; padding: 2px 8px; margin-right: 8px; vertical-align: middle; }
.srcl { margin: 10px 0 0; font-size: 12px; color: var(--muted); }

/* 図の種類を選ぶ */
.dg-picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-bottom: 12px; }
.dg-pick { appearance: none; font: inherit; text-align: left; display: flex; flex-direction: column; gap: 2px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); color: var(--ink); cursor: pointer; transition: border-color .15s ease, background .15s ease; }
.dg-pick b { font-size: 14px; }
.dg-pick span { font-size: 11.5px; color: var(--muted); }
.dg-pick:hover { border-color: #94a3b8; }
.dg-pick[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.dg-pick[aria-pressed="true"] span { color: #cbd5e1; }
.dg-pick { scroll-margin-top: 12px; }

/* 選んだ図の説明 */
.dg-card { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.35fr); gap: 18px 24px; padding: 18px 20px; align-items: start; }
.dg-text h3 { margin: 0 0 6px; font-size: 19px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.dg-text h3 small { font-size: 12.5px; font-weight: 600; color: var(--muted); }
.dg-text h4 { margin: 14px 0 4px; font-size: 12.5px; color: var(--muted); }
.dg-text p { margin: 0; font-size: 13.5px; color: var(--ink2); }
.dg-what { font-size: 14px !important; color: var(--ink) !important; }
.dg-tips { margin: 0; padding-left: 1.3em; display: grid; gap: 4px; font-size: 13.5px; color: var(--ink2); }
.dg-links { display: flex; flex-direction: column; gap: 3px; font-weight: 700; }
.dg-links a { text-decoration: none; }
.dg-links a:hover { text-decoration: underline; }
.dg-src { margin-top: 12px !important; font-size: 12px !important; color: var(--muted) !important; }

.dg-fig { margin: 0; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.dg-view { align-self: flex-start; display: inline-flex; gap: 3px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--line2); }
.dg-view button { appearance: none; border: 0; background: transparent; font: inherit; font-size: 12.5px; font-weight: 700; color: var(--ink2); border-radius: 999px; padding: 5px 13px; cursor: pointer; }
.dg-view button[aria-pressed="true"] { background: var(--paper); color: var(--ink); box-shadow: 0 1px 2px rgba(15, 23, 42, .08); }
.dg-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 10px; -webkit-overflow-scrolling: touch; }
.dg-scroll[hidden], .dg-codewrap[hidden] { display: none; }
.dg-codewrap { position: relative; display: flex; flex-direction: column; gap: 6px; }
.dg-code { margin: 0; background: #0f172a; color: #e2e8f0; border-radius: 12px; padding: 14px 16px; overflow: auto; max-height: 440px; font-family: var(--latin); font-size: 12.5px; line-height: 1.6; tab-size: 2; }
.dg-copy { position: absolute; top: 8px; right: 8px; appearance: none; border: 1px solid #334155; background: #1e293b; color: #f8fafc; border-radius: 8px; padding: 4px 10px; font: inherit; font-size: 12px; font-weight: 700; cursor: pointer; }
.dg-copy:hover { border-color: #94a3b8; }
.dg-mnote { margin: 0; font-size: 12px; color: var(--muted); }
.dg-fig figcaption { font-size: 12.5px; color: var(--muted); }
.dg-swipe { display: none; }

/* 図の中身（SVG） */
.dg-svg { display: block; width: 100%; height: auto; margin: 0 auto; max-width: calc(var(--dg-w) * 1.2px); min-width: calc(var(--dg-w) * .85px); }
.dg-svg text { font-family: var(--sans); font-size: 13px; fill: var(--ink); }
.dg-svg .dg-t.s { font-size: 11px; fill: var(--muted); }
.dg-svg .dg-t.b { font-weight: 700; }
.dg-svg .dg-t.hd { font-size: 12px; font-weight: 700; fill: var(--muted); }
.dg-svg .dg-t.fl { font-size: 12px; font-weight: 700; fill: #475569; }
.dg-svg .dg-t.mono, .dg-svg .dg-el.mono { font-family: var(--latin); font-size: 11.5px; }
.dg-svg .dg-t.key { font-family: var(--latin); font-size: 9.5px; font-weight: 600; fill: #fff; }
.dg-svg .dg-el { font-size: 11.5px; fill: #334155; paint-order: stroke; stroke: #fff; stroke-width: 4px; stroke-linejoin: round; }
.dg-svg .dg-n { fill: #fff; stroke: #94a3b8; stroke-width: 1.5; }
.dg-svg .dg-n.k-emp { fill: #eff6ff; stroke: #93c5fd; }
.dg-svg .dg-n.k-boss { fill: #fffbeb; stroke: #f5c451; }
.dg-svg .dg-n.k-sys { fill: #ecfdf5; stroke: #6ee7b7; }
.dg-svg .dg-n.k-err { fill: #fef2f2; stroke: #fca5a5; }
.dg-svg .dg-n.k-ext { fill: #f5f3ff; stroke: #c4b5fd; }
.dg-svg .dg-n.k-app { fill: #eef2ff; stroke: #a5b4fc; }
.dg-svg .dg-n.k-db { fill: #f1f5f9; stroke: #94a3b8; }
.dg-svg .dg-n.k-uc { fill: #fff; stroke: #64748b; }
.dg-svg .dg-e { fill: none; stroke: #64748b; stroke-width: 1.6; stroke-linejoin: round; }
.dg-svg .dg-e.dash { stroke-dasharray: 5 4; }
.dg-svg .dg-actor { fill: #fff; stroke: #475569; stroke-width: 1.6; }
.dg-svg .dg-actor.k-emp { stroke: #2563eb; }
.dg-svg .dg-actor.k-boss { stroke: #b45309; }
.dg-svg .dg-dot { fill: #0f172a; }
.dg-svg .dg-ring2 { fill: #fff; stroke: #0f172a; stroke-width: 1.6; }
.dg-svg .dg-lane { stroke: #e2e8f0; stroke-width: 1; }
.dg-svg .dg-lane.k-emp { fill: #f7faff; }
.dg-svg .dg-lane.k-sys { fill: #f6fdf9; }
.dg-svg .dg-lane.k-boss { fill: #fffcf3; }
.dg-svg .dg-lanehd { stroke: #e2e8f0; stroke-width: 1; }
.dg-svg .dg-lanehd.k-emp { fill: #e0ecff; }
.dg-svg .dg-lanehd.k-sys { fill: #dcf7ea; }
.dg-svg .dg-lanehd.k-boss { fill: #fdf0cf; }
.dg-svg .dg-frame { fill: none; stroke: #94a3b8; stroke-width: 1.4; stroke-dasharray: 6 4; }
.dg-svg .dg-ll { stroke: #94a3b8; stroke-width: 1.2; stroke-dasharray: 4 4; }
.dg-svg .dg-frag { fill: none; stroke: #94a3b8; stroke-width: 1.2; }
.dg-svg .dg-tab { fill: #f1f5f9; stroke: #94a3b8; stroke-width: 1.2; }
.dg-svg .dg-head { fill: #eef2f7; stroke: #94a3b8; stroke-width: 1.5; }
.dg-svg .dg-sep { stroke: #e2e8f0; stroke-width: 1; }
.dg-svg .dg-key.k-PK { fill: #b45309; }
.dg-svg .dg-key.k-FK { fill: #2563eb; }
.dg-svg .dg-erm { fill: none; stroke: #64748b; stroke-width: 1.6; }
.dg-svg .dg-erc { fill: #fff; stroke: #64748b; stroke-width: 1.6; }
.dg-svg .dg-bar { stroke: currentColor; stroke-width: 1; opacity: .35; fill: none; }
.dg-svg .dg-pip { fill: #94a3b8; }

/* 図を文字で書く */
.dg-why { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.dg-whycard { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.dg-whycard b { font-size: 14.5px; }
.dg-whycard p { margin: 6px 0 0; font-size: 13px; color: var(--ink2); }
.dg-side { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 14px; align-items: start; }
.dg-sidecol { min-width: 0; }
.dg-sidehd { margin: 0 0 6px; font-size: 12.5px; font-weight: 700; color: var(--muted); }

/* UML と C4 */
.dg-uml { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.dg-ucard { padding: 14px 16px; }
.dg-ucard h3 { margin: 0 0 6px; font-size: 15px; }
.dg-ucard p { margin: 0; font-size: 13px; color: var(--ink2); }
.dg-umlk { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px !important; }
.dg-umlk a { font-size: 12.5px; font-weight: 700; text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; background: var(--paper); }
.dg-umlk a:hover { border-color: #93c5fd; }
.dg-sub { margin: 22px 0 4px; font-size: 16px; }
.dg-subp { margin: 0 0 10px; font-size: 13.5px; color: var(--ink2); }
.dg-c4 { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.dg-c4 li { display: flex; gap: 10px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.dg-c4n { flex: none; width: 26px; height: 26px; border-radius: 50%; background: #1d4ed8; color: #fff; font: 600 13px/26px var(--latin); text-align: center; }
.dg-c4 li:nth-child(2) .dg-c4n { background: #4338ca; }
.dg-c4 li:nth-child(3) .dg-c4n { background: #6d28d9; }
.dg-c4 li:nth-child(4) .dg-c4n { background: #a21caf; }
.dg-c4 b { display: block; font-size: 14px; }
.dg-c4 b small { display: block; font-family: var(--latin); font-size: 11px; font-weight: 600; color: var(--muted); }
.dg-c4 p { margin: 5px 0 0; font-size: 12.5px; color: var(--ink2); }

/* AI 時代 */
.dg-ai { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.dg-aicard { background: #faf8ff; border: 1px solid #dccdfb; border-radius: 14px; padding: 12px 14px; }
.dg-aicard b { font-size: 14px; }
.dg-aicard p { margin: 6px 0 0; font-size: 13px; color: var(--ink2); }

/* チェックリスト */
.cklist { padding: 10px 16px; }
.mlist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 2px 18px; }
.mlist label { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; cursor: pointer; padding: 5px 0; }
.mlist input { flex: none; width: 17px; height: 17px; margin: 2px 0 0; accent-color: #0d9488; cursor: pointer; }
.mlist input:checked + span { color: var(--muted); text-decoration: line-through; }
.ckfoot { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.ckcount { font-family: var(--latin); font-size: 13px; color: var(--muted); }
.ckreset { appearance: none; border: 1px solid var(--line); background: var(--paper); border-radius: 999px; padding: 5px 12px; font: inherit; font-size: 12.5px; font-weight: 700; color: var(--ink2); cursor: pointer; }

.dg-pick:focus-visible, .dg-view button:focus-visible, .dg-copy:focus-visible, .dg-links a:focus-visible, .dg-umlk a:focus-visible, .dg-c4 a:focus-visible, .mlist input:focus-visible, .ckreset:focus-visible, .dg-scroll:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; }

@media (max-width: 1100px) {
  .dg-card { grid-template-columns: minmax(0, 1fr); }
  .dg-fig { order: -1; }
  .dg-c4, .dg-ai { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dg-uml { grid-template-columns: minmax(0, 1fr); }
  .dg-side { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .dg-picks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dg-card { padding: 14px; }
  .dg-svg { min-width: calc(var(--dg-w) * 1px); }
  .dg-swipe { display: inline; margin-left: 4px; }
  .dg-why, .dg-c4, .dg-ai, .mlist { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .dg-pick { transition: none; }
}