.portal{--maroon:#7b1e2b;--maroon-deep:#3d0a10;--maroon-light:#9a3340;--maroon-tint:#e8c9cc;--gold:#c9a24b;--gold-light:#e5be7a;--star-gold:#f4c12a;--teal:#1e9e8c;--teal-dark:#0c2a2e;--teal-ink:#0d5248;--cream:#fdfbf7;--cream-surface:#fbf7ef;--cream-muted:#f2e9da;--ink:#2b1a1c;--ink-muted:#6b5b5d;--gradient-maroon:linear-gradient(160deg, var(--maroon) 0%, var(--maroon-deep) 100%);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-pill:999px;--shadow-sm:0 1px 2px #2b1a1c0f;--shadow-md:0 4px 12px #2b1a1c1a;--shadow-lg:0 12px 32px #2b1a1c24;--ok-bg:#d3ede8;--ok-line:#57b3a4;--ok-ink:#0b5f53;--no-bg:#f6e2e4;--no-line:#c98d95;--no-ink:#7b1e2b;--skip-bg:#f2e9da;--skip-line:#d0bc9e;--skip-ink:#5c4d4f;--font-display:var(--font-serif);--font-mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;background:var(--cream);color:var(--ink)}.portal h1,.portal h2,.portal h3{font-family:var(--font-display);line-height:1.2}.tnum{font-variant-numeric:tabular-nums lining-nums}.mono{font-family:var(--font-mono)}.sky{background:linear-gradient(178deg,#0c2a2e 0%,#123a3b 45%,#1e7e78 100%);position:relative;overflow:hidden}.sky-dawn{background:linear-gradient(178deg,#0c2a2e 0%,#243b34 60%,#5c6b34 100%)}.sky-urgent{background:linear-gradient(178deg,#3d0a10 0%,#7b1e2b 70%,#9a5a2a 100%)}.stars{opacity:.9;pointer-events:none;background-image:radial-gradient(1.4px 1.4px at 12% 22%,#f4c12a 40%,#0000),radial-gradient(1px 1px at 32% 12%,#e5be7a 40%,#0000),radial-gradient(1.6px 1.6px at 62% 28%,#f4c12a 40%,#0000),radial-gradient(1px 1px at 82% 14%,#fff8e6 40%,#0000),radial-gradient(1.2px 1.2px at 48% 40%,#e5be7a 40%,#0000),radial-gradient(1px 1px at 90% 34%,#f4c12a 40%,#0000),radial-gradient(1px 1px at 22% 44%,#fff 40%,#0000);position:absolute;inset:0}.portal-card{background:var(--cream-surface);border:1px solid var(--cream-muted);border-radius:16px;box-shadow:0 1px 2px #2b1a1c0f,0 4px 12px #2b1a1c0a}.lbl{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);font-size:.64rem;font-weight:600}@media (prefers-reduced-motion:reduce){.portal *,.portal :before,.portal :after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@keyframes kids-rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes kids-fade{0%{opacity:0}to{opacity:1}}@keyframes kids-sheet{0%{transform:translateY(24px)}to{transform:none}}.rise{animation:.55s both kids-rise}.fade{animation:.2s both kids-fade}.sheet-in{animation:.24s both kids-sheet}@media print{.no-print{display:none!important}.portal{background:#fff}.portal-card,.print-plain{break-inside:avoid;box-shadow:none!important}.print-open{display:block!important}*{-webkit-print-color-adjust:exact;print-color-adjust:exact}@page{margin:14mm}}.portal .lcard{border:1px solid var(--cream-muted);border-radius:var(--radius-sm);background:var(--cream);overflow:hidden}.portal .lvideo{padding:0}.portal .lvideo iframe{aspect-ratio:16/9;border-radius:var(--radius-sm);background:#000;border:0;width:100%}.portal .act{padding:0}.portal .aprompt{margin:0 0 .7rem;font-size:.85rem;font-weight:600;line-height:1.5}.portal .astate{color:var(--ink-muted);margin:.6rem 0 0;font-size:.78rem;line-height:1.55}.portal .astate.big{color:var(--ink);font-size:.95rem;font-weight:600}.portal .astate.no{color:#b22234}.portal .pill{border:1px solid var(--cream-muted);background:var(--cream-surface);border-radius:var(--radius-sm);font:inherit;cursor:pointer;text-align:left;width:100%;color:var(--ink);min-height:44px;padding:10px 12px;font-size:.82rem;line-height:1.4}.portal .pill:disabled{cursor:default}.portal .pill.sel{border-color:var(--maroon);background:var(--maroon-tint);font-weight:600}.portal .pill.got{border-color:var(--teal);color:var(--ink-muted);background:#1e9e8c1a}.portal .pill.no{background:#b222341a;border-color:#b22234}.portal .pill .ans{color:var(--teal-ink);font-weight:600}.portal .pairs{grid-template-columns:1fr 1fr;gap:7px;display:grid}.portal .pairs ul{align-content:start;gap:6px;margin:0;padding:0;list-style:none;display:grid}.portal .sortitem{border:1px solid var(--cream-muted);border-radius:var(--radius-sm);background:var(--cream-muted);padding:13px;font-size:.86rem;line-height:1.5}.portal .sortitem.ok{border-color:var(--teal);background:#1e9e8c1f}.portal .sortitem.no{background:#b222341a;border-color:#b22234}.portal .bins{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:7px;margin-top:9px;display:grid}.portal .tflist,.portal .oddlist{gap:7px;margin:0;padding:0;list-style:none;display:grid}.portal .studylist{gap:5px;padding-left:1.1rem;display:grid}.portal .studylist li{font-size:.84rem;line-height:1.5}.portal .tflist li{border:1px solid var(--cream-muted);border-radius:var(--radius-sm);padding:11px 12px}.portal .tflist li.ok{border-color:var(--teal);background:#1e9e8c12}.portal .tflist li.no{background:#b222340f;border-color:#b22234}.portal .tflist li p{margin:0;font-size:.84rem;line-height:1.5}.portal .tfbtns{gap:7px;margin-top:8px;display:flex}.portal .tfbtns .pill{text-align:center;width:auto;min-width:84px}.portal .again{border:1px solid var(--cream-muted);background:var(--cream-surface);border-radius:var(--radius-sm);font:inherit;cursor:pointer;color:var(--maroon);min-height:44px;margin-top:11px;padding:9px 15px;font-size:.8rem;font-weight:600}.portal .diagram svg{max-width:100%;height:auto}@media (max-width:640px){.portal .pairs{grid-template-columns:1fr}}