/* Student entry, topic lessons and shared classroom links. */
.student-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:58px;align-items:center;padding-block:64px;border-bottom:1px solid var(--line,#d9ded4)}
.student-hero h1{font-size:clamp(40px,4.8vw,65px);margin:0 0 24px;line-height:1.13}
.student-hero .hero-description{max-width:540px;font-size:16px}
.student-hero .hero-description strong{color:var(--ink)}
.student-hero .eyebrow{margin-bottom:18px}
.student-hero .student-proof{margin:22px 0 0;font-size:12px}
.student-card{background:#e8edde;border:1px solid #cdd9c4;border-radius:22px;padding:32px;min-width:0}
.student-card h2{font-size:31px;margin-bottom:16px}
.student-card .student-fact{font-size:21px;line-height:1.5;color:var(--ink);margin:20px 0}
.student-grade-links,.student-actions{display:flex;gap:10px;flex-wrap:wrap}
.student-grade-links a{background:var(--white,#fffefa);border:1px solid #bac9b6;border-radius:8px;padding:11px 15px;font-weight:700;font-size:13px;min-height:44px}
.student-grade-links a:hover{background:#d9edaf}
.student-layout{padding-block:48px}.student-layout h1{font-size:clamp(35px,4.8vw,60px);max-width:900px;margin:16px 0 22px}
.student-layout .lead{font-size:18px;max-width:780px;margin-bottom:28px}.student-crumbs{font-size:12px;color:var(--muted,#65716a)}
.student-section{margin-block:46px}.student-section h2{font-size:30px;margin-bottom:16px}.student-section h3{font-size:22px;margin:0 0 12px}
.student-section p{max-width:820px}.student-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.student-topic-card{border:1px solid #d9ded4;background:#fffefa;padding:28px;border-radius:18px;display:flex;flex-direction:column;align-items:flex-start}
.student-topic-card .button{margin-top:auto}.student-topic-card .eyebrow{margin-bottom:12px}
.student-formula{display:block;padding:18px 24px;border-left:4px solid #c16b4b;background:#edeedf;border-radius:6px;font-size:22px;font-weight:700;overflow-wrap:anywhere}
.student-tip{padding:20px 24px;background:#f5ead9;border-radius:14px;margin-top:20px}.student-tip p{margin:5px 0 0}
.student-examples{display:grid;gap:14px}.student-example{padding:24px;border:1px solid #d9ded4;border-radius:16px;background:#fffefa}
.student-example p:last-child{margin:0}.student-example details summary{min-height:44px;cursor:pointer;font-weight:700;color:#214e41}.student-example details p{padding-top:14px}
.student-mini{background:#fffefa;padding:28px;border:1px solid #d9ded4;border-radius:20px}
.student-mini fieldset{border:0;padding:0;margin:0 0 24px;min-width:0}.student-mini legend{font-weight:700;margin-bottom:12px;line-height:1.6;font-size:16px}
.student-mini label{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;margin-bottom:7px;border:1px solid #d9ded4;border-radius:8px;cursor:pointer;color:#203d35;line-height:1.5}
.student-mini input{accent-color:#214e41;width:18px;height:18px;flex:none;margin:3px 0 0}.student-mini label:has(input:checked){border-color:#214e41;background:#e8edde}
.student-feedback{margin-top:18px;padding:14px 18px;border-left:4px solid #214e41;background:#edf3e5;color:#203d35}
.student-feedback p{color:#203d35;margin:0}.student-feedback h3{font-size:19px;line-height:1.4;margin:0 0 8px}
.student-result{margin-top:24px;border-top:1px solid #d9ded4;padding-top:24px}.student-result h3{margin-bottom:12px}.student-result a{text-decoration:underline}
.student-continue{background:#203d35;padding:28px;color:#fffefa;border-radius:18px;margin-block:28px}.student-continue p{color:#e0e8d7}.student-continue h2{font-size:28px;margin-bottom:14px}
.student-continue a{color:#d9edaf;text-decoration:underline}.student-continue .button{color:#203d35;background:#d9edaf;text-decoration:none;margin:10px 0}
.student-quick-resources{display:flex;gap:14px;flex-wrap:wrap}.student-quick-resources a{text-decoration:underline;min-height:44px;padding-block:9px}
.student-review-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.student-review-actions a,.student-review-actions button{border:1px solid #b7c9b2;padding:10px 14px;border-radius:8px;background:#eef3e6;color:#203d35;font:inherit;font-size:13px;font-weight:700;min-height:44px;text-decoration:none;cursor:pointer}
.bfy-share{font-family:system-ui,sans-serif;max-width:1160px;width:calc(100% - 40px);margin:28px auto;padding:20px 24px;border:1px solid #cbd7c3;border-radius:14px;background:#eef3e6;color:#203d35;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.bfy-share p{color:#52634e;margin:3px 0 0;font-size:13px;line-height:1.6}.bfy-share button{border:1px solid #214e41;background:#214e41;color:white;border-radius:7px;padding:11px 16px;font:inherit;font-size:13px;min-height:44px;cursor:pointer}
.bfy-share-dialog{width:min(520px,calc(100% - 28px));max-height:90dvh;overflow:auto;border:1px solid #cbd7c3;border-radius:18px;padding:24px;background:#fffefa;color:#203d35;font:15px/1.7 system-ui,sans-serif}
.bfy-share-dialog::backdrop{background:#102820aa}.bfy-share-dialog h2{font-size:24px;margin:16px 0}.bfy-share-dialog p{color:#52634e}.bfy-share-close{float:right;background:transparent;border:1px solid #cbd7c3;border-radius:6px;padding:8px 12px;cursor:pointer;font:inherit;min-height:44px}
.bfy-share-qr{width:220px;height:220px;display:block;margin:16px auto;background:white;border:12px solid white}.bfy-share-dialog input{display:block;width:100%;padding:12px;border:1px solid #bac9b6;border-radius:8px;font:13px system-ui,sans-serif;color:#203d35;background:white;min-width:0}
.bfy-share-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.bfy-share-buttons button,.bfy-share-buttons a{font:13px/1.5 system-ui,sans-serif;background:#214e41;color:white;border:0;border-radius:7px;padding:12px 16px;min-height:44px;text-decoration:none;cursor:pointer}
.bfy-share-status{font-size:13px;min-height:24px;margin-top:10px;color:#52634e}
.home-vitrine .store-intro h2{font-size:clamp(34px,3.6vw,49px)}
@media(max-width:900px){.student-hero{gap:28px}.student-card{padding:24px}.student-hero h1{font-size:44px}}
@media(max-width:620px){.student-hero{grid-template-columns:1fr;padding-block:32px;gap:26px}.student-hero h1{font-size:40px}.student-hero .hero-description{font-size:14px}.student-card{padding:24px}.student-card h2{font-size:26px}.student-topic-grid{grid-template-columns:1fr}.student-layout{padding-block:30px}.student-layout .lead{font-size:16px}.student-section{margin-block:34px}.student-section h2{font-size:27px}.student-mini{padding:20px}.student-mini legend{font-size:15px}.student-topic-card{padding:24px}.student-formula{font-size:18px;padding:15px}.bfy-share{padding:18px;width:calc(100% - 32px)}.bfy-share-dialog{padding:20px}.student-grade-links a{padding:10px 12px}}
@media(prefers-reduced-motion:reduce){.student-hero *, .student-layout *{scroll-behavior:auto}}
@media(max-width:370px){.student-layout h1{font-size:30px;overflow-wrap:anywhere}.student-hero h1{font-size:36px}.student-mini label span{overflow-wrap:anywhere}}