/* See it made, course records and how Tavira AI works. Uses the shared Tavira tokens. */
.proof-section .section-heading p{max-width:640px;color:var(--muted);font-size:15px;line-height:1.75}
.proof-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:38px}
.proof-pane{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:12px;min-width:0}
.proof-pane>.mono{font:11px var(--mono);letter-spacing:.08em;color:var(--orange)}
.proof-film{margin:0;display:flex;flex-direction:column;gap:10px;min-width:0}
.proof-film video{width:100%;aspect-ratio:16/9;background:#000;border-radius:12px;border:1px solid var(--line);display:block}
.proof-chapters{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:6px}
.proof-chapters button{width:100%;display:flex;gap:10px;align-items:baseline;text-align:left;background:transparent;border:1px solid var(--line);border-radius:9px;padding:8px 10px;color:var(--ink);font:13px/1.35 var(--sans);cursor:pointer}
.proof-chapters button:hover,.proof-chapters button.active{border-color:var(--orange);background:var(--tint)}
.proof-chapters small{font:11px var(--mono);color:var(--orange);flex:none}
.proof-owners{margin-top:46px;border-top:1px solid var(--line);padding-top:30px}
.proof-owners h3{font:500 26px/1.2 var(--sans);letter-spacing:-.02em;margin:0 0 18px}
.proof-owners ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.proof-owners li{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;gap:8px;align-content:start}
.proof-owners li>.mono{font:11px var(--mono);color:var(--quiet)}
.proof-owners li strong{font-weight:550;font-size:15px}
.proof-owners li p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
.proof-owner{display:inline-flex;width:max-content;font:10px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:var(--ink)}
.proof-owner-customer{border-color:#e8613f80;color:#f59a7f}
.proof-owner-ai{border-color:#c6a26a80;color:#e6c48c}
.proof-owner-check{border-color:#8fb3a080;color:#a8d1bb}
.proof-owner-worker{border-color:#7f97c580;color:#a9bde6}
.proof-owner-learner{border-color:#b9a3d180;color:#d3c2e8}
.proof-owner-staff{border-color:#ffffff40;color:#d8d8d8}
.proof-staff{margin:18px 0 0;padding:14px 16px;border:1px dashed var(--line);border-radius:12px;color:var(--ink);font-size:14px;line-height:1.6}
.proof-links{display:flex;flex-wrap:wrap;gap:22px;align-items:center;margin-top:28px}
.proof-page{max-width:1160px}
.proof-case{border-top:1px solid var(--line);padding:46px 0 10px}
.proof-case>h2{font:400 clamp(30px,3.2vw,44px)/1.1 var(--sans);letter-spacing:-.04em;margin:14px 0 26px}
.proof-case-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:26px;align-items:start}
.proof-props{margin:0}
.proof-props dd small{color:var(--muted)}
.proof-block{margin-top:34px}
.proof-block h3{font:500 22px/1.25 var(--sans);letter-spacing:-.02em;margin:0 0 12px}
.proof-block>p{color:var(--muted);font-size:15px;line-height:1.75;max-width:760px}
.proof-objectives{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.proof-objectives li{display:grid;gap:4px;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.proof-objectives span{color:var(--muted);font-size:13px;line-height:1.55}
.proof-timeline{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.proof-timeline li{position:relative;padding:4px 0 18px 22px}
.proof-timeline li::before{content:'';position:absolute;left:-5px;top:9px;width:9px;height:9px;border-radius:50%;background:var(--orange)}
.proof-timeline li.stopped::before{background:#0a0a0a;border:2px solid #f0a35c}
.proof-timeline li>div{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.proof-timeline li>div .mono{font:11px var(--mono);color:var(--quiet)}
.proof-timeline p{margin:8px 0 0;color:var(--ink);font-size:14px;line-height:1.65;max-width:820px}
.proof-outside{margin:0;padding-left:18px;color:var(--muted);font-size:14px;line-height:1.7}
.proof-outside li{margin-bottom:6px}
.proof-roles{width:100%;border-collapse:collapse;font-size:14px}
.proof-roles th{text-align:left;font:11px var(--mono);letter-spacing:.06em;color:var(--quiet);padding:10px;border-bottom:1px solid var(--line)}
.proof-roles td{padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--muted);line-height:1.6}
.proof-json{background:#0b0b0b;border:1px solid var(--line);border-radius:14px;padding:18px;overflow:auto;max-height:560px;font:12.5px/1.6 var(--mono);color:#e6e6e6;white-space:pre-wrap;overflow-wrap:anywhere}
.proof-chain{list-style:none;margin:0;padding:0;display:grid;gap:12px;counter-reset:chain}
.proof-chain li{display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;border:1px solid var(--line);border-radius:14px;padding:16px}
.proof-chain li>.proof-owner,.proof-roles .proof-owner{align-self:start}
.proof-chain li p{margin:6px 0 0;color:var(--muted);font-size:14px;line-height:1.6}
.proof-chain blockquote{margin:10px 0 0;padding:8px 12px;border-left:2px solid var(--orange);color:var(--ink);font-size:14px}
.proof-frame{margin:18px 0 0}
.proof-frame img{width:100%;border-radius:14px;border:1px solid var(--line)}
.proof-frame figcaption{color:var(--muted);font-size:13px;margin-top:8px}
.proof-kinds{display:grid;grid-template-columns:150px minmax(0,1fr);gap:10px 18px;margin:12px 0 0}
.proof-kinds dt{font:12px var(--mono);color:var(--orange);padding-top:2px}
.proof-kinds dd{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.proof-earlier{border-top:1px solid var(--line);padding-top:30px;margin-bottom:40px}
@media (max-width:1100px){.proof-owners ol{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:900px){.proof-pair,.proof-case-grid{grid-template-columns:1fr}.proof-objectives{grid-template-columns:1fr}}
@media (max-width:620px){.proof-owners ol{grid-template-columns:1fr}.proof-chain li,.proof-kinds{grid-template-columns:1fr}.proof-roles th:nth-child(3),.proof-roles td:nth-child(3){display:none}}
.proof-props{display:grid;grid-template-columns:130px minmax(0,1fr);gap:12px 18px;align-content:start;border:1px solid var(--line);border-radius:14px;padding:18px}
.proof-props dt{font:11px var(--mono);letter-spacing:.06em;color:var(--quiet);text-transform:uppercase;padding-top:3px}
.proof-props dd{margin:0;color:var(--ink);font-size:14px;line-height:1.55}
.proof-props a{color:#f59a7f}
@media (max-width:620px){.proof-props{grid-template-columns:1fr;gap:4px}.proof-props dd{margin-bottom:10px}}
/* Course records: summary row, expandable technical record, clean-run slot. Layout only; colours come from the shared tokens. */
.proof-summary{list-style:none;margin:0 0 26px;padding:0;display:grid;grid-template-columns:minmax(0,1fr);gap:22px}
.proof-summary li{position:relative;display:grid;gap:6px;align-content:start;min-width:0;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:12px 14px}
.proof-summary li>.mono{font:10.5px/1.35 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--orange)}
.proof-summary p{margin:0;color:var(--ink);font-size:13px;line-height:1.55;overflow-wrap:anywhere}
.proof-summary li:not(:last-child)::after{content:'↓';position:absolute;left:50%;bottom:-18px;transform:translateX(-50%);color:var(--quiet);font:12px/1 var(--mono)}
@media (min-width:621px){.proof-summary{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 24px}.proof-summary li:not(:last-child)::after{content:'→';left:auto;right:-19px;bottom:auto;top:50%;transform:translateY(-50%)}.proof-summary li:nth-child(3n)::after{display:none}}
@media (min-width:1200px){.proof-summary{grid-template-columns:repeat(6,minmax(0,1fr))}.proof-summary li:nth-child(3n):not(:last-child)::after{display:block}}
.proof-technical{margin-top:30px;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.proof-technical>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:16px 18px;font:500 18px/1.3 var(--sans);letter-spacing:-.01em;color:var(--ink)}
.proof-technical>summary::-webkit-details-marker{display:none}
.proof-technical>summary small{font:11px/1.4 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.proof-technical>summary i{margin-left:auto;flex:none;width:9px;height:9px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);transition:transform .2s}
.proof-technical[open]>summary i{transform:rotate(-135deg)}
.proof-technical>summary:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:14px}
.proof-technical>.proof-block{padding:0 18px 6px;margin-top:6px}
.proof-technical>.proof-block:last-child{padding-bottom:18px}
.proof-fixed,.proof-stop{display:inline-flex;align-items:center;width:max-content;font:10px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--line);border-radius:999px;padding:5px 9px;color:var(--muted)}
.proof-fixed{border-color:var(--orange);color:var(--orange)}
.proof-wait{margin:18px 0 0;padding:14px 16px;border:1px solid var(--line);border-radius:12px;color:var(--ink);font-size:14px;line-height:1.6;max-width:820px}
.proof-clean{display:grid;gap:12px;margin:0 0 20px}
.proof-clean-badge{display:inline-flex;width:max-content;max-width:100%;font:11px/1.4 var(--mono);letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--orange);background:var(--tint);color:var(--orange);border-radius:999px;padding:7px 12px}
.proof-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:0}
.proof-metrics div{border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.proof-metrics dt{font:10.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--quiet)}
.proof-metrics dd{margin:4px 0 0;color:var(--ink);font-size:14px;line-height:1.5}
.proof-metrics .proof-metric-wide{grid-column:1/-1}
.proof-chain blockquote cite{display:block;margin-top:6px;font:11px/1.5 var(--mono);font-style:normal;color:var(--muted)}
.proof-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px;margin:12px 0 0}
.proof-facts div{border:1px solid var(--line);border-radius:10px;padding:9px 11px}
.proof-facts dt{font:10.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--quiet)}
.proof-facts dd{margin:3px 0 0;color:var(--ink);font-size:14px}
.proof-rejects-intro{margin:14px 0 0}
.proof-rejects{margin:6px 0 0;padding-left:18px;color:var(--muted);font-size:14px;line-height:1.65}
.proof-chain .proof-limit{color:var(--ink)}
.proof-chain .proof-rejects li{display:list-item;grid-template-columns:none;gap:0;border:0;border-radius:0;padding:0;margin-bottom:4px}
.proof-chain .proof-facts div{display:block;grid-template-columns:none}
.proof-outside-badge{display:inline-flex;width:max-content;max-width:100%;font:11px/1.4 var(--mono);letter-spacing:.05em;text-transform:uppercase;border:1px solid var(--ink);background:var(--surface);color:var(--ink);border-radius:999px;padding:7px 12px;margin:0 0 4px}
.detail-page.proof-page .lead.proof-who{margin:18px 0 0;max-width:820px;color:var(--ink)}
.detail-page.proof-page .lead.proof-team-intro{margin:12px 0 0;max-width:820px}