/* Shared styles for the aircraft collection pages (/aircraft, /blackbird, /concorde, /cherokee/detective,
   /baron/captains-call). Built on the homepage tokens from /style.css: --ink, --navy, --paper, --muted, --line, --red,
   --copper, --copper-accent, --green, --serif (Newsreader), --sans (Manrope). Light readable surfaces for text;
   each page adds its own dark panel where an experiment needs one. No em dashes in copy; no neon; 44 px targets. */
.dossier-page{background:var(--paper);color:var(--ink)}
.dossier-page h1{font-family:var(--serif);font-weight:400;font-size:clamp(44px,5.8vw,86px);line-height:.98;letter-spacing:-.035em;text-wrap:balance}
.dossier-page h2{font-family:var(--serif);font-weight:400;font-size:clamp(32px,3.8vw,54px);line-height:1.05;letter-spacing:-.02em;text-wrap:balance}
.dossier-page h1 em,.dossier-page h2 em{color:#657a8b;font-style:italic}
.dossier-page h3{font-family:var(--serif);font-weight:400;line-height:1.15;letter-spacing:-.01em}
.dossier-page p{overflow-wrap:break-word}
.dossier-page a.text-link{color:var(--ink)}
.dossier-page .button{gap:26px}
.dossier-page .button span{font-size:21px}
.dossier-page .section{padding:70px 7%}
.dossier-page .section-top{margin-bottom:34px}
.dossier-page .educational{font-size:10.5px;letter-spacing:.14em;font-weight:700;color:var(--copper);text-transform:uppercase}
.dossier-page .lede{font-size:18px;line-height:1.65;color:#3a4a56;margin-top:22px;max-width:620px}
.dossier-page .sources{font-size:12.5px;line-height:1.8;color:#4f5e68;max-width:760px}
.dossier-page .sources a{text-decoration:underline;text-underline-offset:3px}
.dossier-page .sources a:hover{color:var(--red)}

/* ---------- hero (light) ---------- */
.dossier-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:56px 7% 60px;background:#fff;border-bottom:1px solid var(--line)}
.dossier-hero .eyebrow{margin-bottom:22px}
.dossier-hero .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 30px;margin-top:30px}
.dossier-hero figure{margin:0;border:1px solid var(--line);background:linear-gradient(180deg,#fbfbfb,#f0f2f3);padding:14px}
.dossier-hero figure img,.dossier-hero figure svg{display:block;width:100%;height:auto}
.dossier-hero figcaption{font-size:11.5px;line-height:1.7;color:#4f5e68;margin-top:10px}

/* ---------- prose columns ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px 56px;align-items:start}
.two-col p{font-size:16px;line-height:1.75;color:#2f3e4a}
.two-col p+p{margin-top:14px}
.dossier-prose h3{font-size:clamp(22px,2vw,26px);margin:26px 0 8px}
.dossier-prose h3:first-child{margin-top:0}
.dossier-prose blockquote{margin:14px 0;padding:14px 18px;border-left:3px solid var(--copper-accent);background:#fff;font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--ink)}
.dossier-prose blockquote cite{display:block;font-family:var(--sans);font-style:normal;font-size:12px;color:#4f5e68;margin-top:8px}
.plain,.plain-note{padding:18px 22px;background:#eef2f5;border-left:3px solid var(--navy);font-size:14.5px;line-height:1.7;color:var(--ink);max-width:820px;margin-top:18px}
.plain strong,.plain-note strong{font-weight:700}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;max-width:100%}
.table-scroll:focus-visible{outline:3px solid #529dd4;outline-offset:4px}
table.numbers{border-collapse:collapse;width:100%;font-size:14px;background:#fff;border:1px solid var(--line)}
table.numbers th,table.numbers td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.5}
table.numbers th{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:#566875;background:#eef2f5}

/* ---------- chips and the provenance drawer ---------- */
.chip{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:4px 8px;line-height:1.3;white-space:nowrap;vertical-align:middle}
.chip.verified{color:#1f5a47;background:#e4f1ea}
.chip.reported{color:#7a3d12;background:#f7e8dc}
.chip.unverified{color:#3a4a56;background:#e6ebee}
.chip.illustrative{color:#7a3d12;background:#f7e8dc}
.chip.synthetic{color:#3a4a56;background:#e6ebee;border:1px solid #b9c4cc}
.drawer{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;max-width:1100px}
.drawer summary{cursor:pointer;padding:18px 0;font-size:15px;font-weight:650;display:flex;justify-content:space-between;gap:20px;align-items:center;list-style:none;min-height:54px}
.drawer summary::-webkit-details-marker{display:none}
.drawer summary::after{content:'+';font-size:26px;font-weight:300;line-height:1;color:var(--red)}
.drawer[open] summary::after{content:'−'}
.drawer summary .count{font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.04em}
.drawer .drawer-body{padding:4px 0 30px;display:grid;gap:22px}
.drawer .legend{font-size:13px;line-height:1.8;color:#3a4a56;max-width:820px}
.drawer .legend strong{font-weight:700;color:var(--ink)}
.drawer .correction{font-size:13px;color:#3a4a56}
.drawer .correction a{text-decoration:underline;text-underline-offset:3px;font-weight:600;color:var(--ink)}
.drawer .correction a:hover{color:var(--red)}
.drawer h3{font-size:22px;margin-top:6px}
.claims{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.claims li{display:grid;grid-template-columns:110px 1fr;gap:8px 20px;padding:14px 0;border-bottom:1px solid var(--line);font-size:13.5px;line-height:1.7}
.claims li>.chip{align-self:start;justify-self:start}
.claims .claim{font-weight:650;color:var(--ink)}
.claims .about{color:#2f3e4a;margin-top:2px}
.claims .refs{color:#4f5e68;font-size:12.5px;margin-top:4px}
.claims .refs a{text-decoration:underline;text-underline-offset:3px}
.source-index{list-style:none;margin:0;padding:0;columns:2;column-gap:40px;font-size:12.5px;line-height:1.7;color:#2f3e4a}
.source-index li{break-inside:avoid;padding:6px 0;border-bottom:1px solid #eef1f3}
.source-index a{text-decoration:underline;text-underline-offset:3px;font-weight:600;color:var(--ink)}
.source-index a:hover{color:var(--red)}
.source-index .loc{display:block;color:#4f5e68}

/* ---------- knowledge check (same markup as the observatory chapter) ---------- */
.challenge{max-width:860px}
.challenge .question{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.challenge .question-num{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--copper);margin-bottom:8px}
.challenge .question-prompt{font-size:clamp(22px,2.1vw,27px);margin-bottom:16px}
.challenge .lesson-options{margin-top:0}
.challenge .lesson-option{min-height:54px}
.challenge .lesson-option[aria-pressed=true]:not(.correct):not(.incorrect){border-color:var(--navy)}
.challenge .evidence p{font-size:15px;line-height:1.8;margin-top:12px}
.challenge .evidence .lesson-source{margin-top:12px!important;font-size:13px!important;color:#3a4a56}
.challenge .evidence .lesson-source a{text-decoration:underline;text-underline-offset:3px;color:#3c617a}
.challenge .evidence blockquote{margin:12px 0 0;padding-left:16px;border-left:2px solid var(--copper-accent);font-family:var(--serif);font-size:18px;line-height:1.5;color:var(--ink)}
.challenge .evidence .verdict{font-family:var(--serif);font-size:26px;line-height:1.15;color:var(--ink);margin-top:0}
.challenge-status{font-size:13px;color:var(--muted);margin-top:10px}
.challenge-done{margin-top:22px;padding:18px 22px;background:#e4f1ea;border-left:3px solid var(--green);font-size:14.5px;line-height:1.7;color:var(--ink);display:grid;gap:8px;justify-items:start}
.challenge-done .text-link{font-size:13px}
.challenge-complete{margin-top:34px;padding:30px 30px 26px;background:#fff;border:1px solid var(--line)}
.challenge-complete h3{font-size:clamp(28px,3vw,40px)}
.challenge-complete .completion-stats{margin:22px 0 18px}
.challenge-complete .completion-stats strong{font-size:54px}
.challenge-complete p{font-size:15px;line-height:1.75;color:#2f3e4a}
.share-line{display:block;width:100%;padding:12px 14px;border:1px solid #9dadb8;background:#f6f7f7;font:inherit;font-size:14px;color:var(--ink);margin-top:14px}
.challenge-complete .lesson-actions{margin-top:20px;justify-content:flex-start;gap:24px;flex-wrap:wrap}

/* ---------- generic interactive bits on light surfaces ---------- */
.dossier-page .light-button,.dossier-page .dossier-button{min-height:44px;padding:10px 16px;border:1px solid #9dadb8;background:#fff;color:var(--ink);font-size:14px;font-weight:650;line-height:1.4;text-align:left}
.dossier-page .light-button:hover,.dossier-page .dossier-button:hover{border-color:var(--navy)}
.dossier-page .light-button[aria-pressed=true],.dossier-page .dossier-button[aria-pressed=true],.dossier-page .dossier-button.is-selected{background:var(--navy);color:#fff;border-color:var(--navy)}
.dossier-page .light-button:disabled,.dossier-page .dossier-button:disabled{opacity:.55}
.dossier-page textarea{width:100%;min-height:96px;padding:12px 14px;border:1px solid #9dadb8;background:#fff;font:inherit;font-size:15px;line-height:1.55;color:var(--ink);resize:vertical}
.dossier-page input[type=range]{width:100%;height:44px;margin:0;background:transparent;accent-color:var(--copper-accent);cursor:pointer}
.status-line{font-size:13px;line-height:1.7;color:#3a4a56}
.small-note.warn{color:#7a3d12}

/* ---------- collection cards (/aircraft) ---------- */
.collection{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.aircraft-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);color:var(--ink)}
.aircraft-card .card-media{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(180deg,#fbfbfb,#e9edf0);border-bottom:1px solid var(--line)}
.aircraft-card .card-media img,.aircraft-card .card-media svg{display:block;width:100%;height:100%;object-fit:cover}
.aircraft-card .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.aircraft-card .kicker{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--copper);text-transform:uppercase}
.aircraft-card h2{font-size:clamp(26px,2.4vw,32px)}
.aircraft-card p{font-size:14.5px;line-height:1.6;color:#3a4a56}
.aircraft-card .card-links{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:6px}
.aircraft-card .card-links a{display:grid;grid-template-columns:1fr auto;align-items:center;gap:2px 12px;min-height:44px;padding:8px 12px;border:1px solid var(--line);font-size:14px;font-weight:650;color:var(--ink);transition:border-color .15s,color .15s}
.aircraft-card .card-links a>span{grid-column:2;grid-row:1/3}
.aircraft-card .card-links small{grid-column:1}
.aircraft-card .card-links a:hover{border-color:var(--red);color:var(--red)}
.aircraft-card .card-links a span{color:var(--red)}
.aircraft-card .card-links small{display:block;font-weight:500;color:var(--muted);font-size:12px}
.aircraft-card .credit{font-size:11px;line-height:1.6;color:#4f5e68;margin-top:auto;padding-top:8px}
.aircraft-card.backlog{background:#eef2f5;border-style:dashed}
.aircraft-card.backlog .card-media{background:#e3e9ee}

/* ---------- responsive ---------- */
@media(max-width:1100px){.dossier-hero{gap:36px;padding:44px 5% 48px}.dossier-page .section{padding:60px 5%}.collection{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.dossier-hero{grid-template-columns:1fr;padding:36px 6% 40px;gap:28px}.dossier-page h1{font-size:clamp(42px,11vw,60px)}.dossier-page .lede{font-size:16px}.dossier-page .section{padding:48px 6%}.two-col{grid-template-columns:1fr;gap:26px}.claims li{grid-template-columns:1fr;gap:4px}.source-index{columns:1}.challenge-complete{padding:24px 20px}.drawer summary{font-size:14px}.collection{grid-template-columns:1fr}}
@media(max-width:480px){.dossier-page h2{font-size:clamp(30px,9vw,38px)}.dossier-hero .hero-actions{flex-direction:column;align-items:stretch}.dossier-hero .hero-actions .button{justify-content:space-between}}
@media(prefers-reduced-motion:reduce){.aircraft-card .card-links a{transition:none}}

/* ---------- collection page extras ---------- */
.collection-page .done-chip{display:inline-block;font-style:normal;font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:2px 6px;background:#e4f1ea;color:#1f5a47;margin-left:4px;vertical-align:middle}
.progress-list{list-style:none;margin:0;padding:0;font-size:15px;line-height:1.7;color:#2f3e4a}
.progress-list li{padding:10px 0;border-top:1px solid var(--line)}
.progress-list a{font-weight:650;text-decoration:underline;text-underline-offset:3px}
.progress-list .progress-empty{color:var(--muted)}
.rules{margin:0;padding-left:18px;font-size:15.5px;line-height:1.7;color:#2f3e4a}
.rules li+li{margin-top:10px}
.aircraft-card .card-links a[data-completed=true]{border-color:#a9cdbb}