:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#1b1c1f;background:#f5f1e8;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.home{min-height:100vh;display:grid;grid-template-columns:minmax(280px,.9fr) minmax(320px,1.1fr);align-items:center;gap:48px;padding:48px clamp(20px,6vw,84px);background:linear-gradient(120deg,#f5f1e8e6,#f8faf7e6),repeating-linear-gradient(45deg,rgba(88,57,39,.08) 0 2px,transparent 2px 14px)}.home__intro h1,.teacher-hero h1,.student-card h1,.auth-card h1{margin:0;max-width:760px;font-size:clamp(2.2rem,5vw,5rem);line-height:1.04;letter-spacing:0}.home__intro p:not(.eyebrow),.teacher-hero p,.panel__header p{color:#5d615d;line-height:1.7}.eyebrow{margin:0 0 12px;color:#2f6f49;font-weight:800}.role-grid{display:grid;gap:16px}.role-card{min-height:160px;padding:28px;border:1px solid #ded8cc;border-radius:8px;background:#fffc;color:#1f2421;text-align:left;box-shadow:0 20px 60px #44301c1f}.role-card span{display:block;margin-top:18px;font-size:1.35rem;font-weight:800}.role-card small{display:block;margin-top:8px;color:#646862;font-size:.98rem}.teacher-layout,.room-screen{min-height:100vh;padding:24px;background:#f5f1e8}.topbar,.room-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.topbar__right,.room-actions,.toolbar,.row-actions,.modal__actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.teacher-hero{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:24px}.dashboard-grid{display:grid;grid-template-columns:minmax(280px,360px) minmax(0,1fr);gap:20px;align-items:start}.panel,.student-card,.auth-card,.modal,.qr-card{border:1px solid #ded8cc;border-radius:8px;background:#ffffffdb;box-shadow:0 16px 42px #3c2a191c}.panel,.student-card,.auth-card{padding:24px}.auth-card{width:min(100%,620px);gap:16px}.auth-card__copy{max-width:520px;margin:0;color:#5d615d;line-height:1.7;text-align:center}.panel h2{margin:0 0 16px}.panel__header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.panel__header h2,.panel__header p{margin:0}label{display:grid;gap:8px;margin-bottom:14px;font-weight:700}input,textarea,select{width:100%;border:1px solid #cfc7ba;border-radius:8px;background:#fffdf8;color:#1f2421;padding:12px 13px}textarea{resize:vertical}button{border:0}.primary-button,.secondary-button,.ghost-button,.text-button,.icon-button,.action-button,.bulkbar button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border-radius:8px;font-weight:800;white-space:nowrap}.primary-button{width:100%;background:#226f54;color:#fff;padding:0 18px}.secondary-button{min-width:150px;border:1px solid #cfc7ba;background:#fffdf8;color:#252922;padding:0 18px}.ghost-button,.text-button{background:transparent;color:#2b4437;padding:0 10px}.icon-button{width:42px;background:#fffdf8;color:#29312c;border:1px solid #d8d1c4}.teacher-avatar{width:34px;height:34px;border-radius:999px;object-fit:cover;border:1px solid #d8d1c4}.action-button{min-width:92px;padding:0 12px;border:1px solid #d8d1c4;background:#fffdf8;color:#29312c}.teacher-hero>.secondary-button{flex:0 0 auto;min-width:190px}.icon-button--small{width:30px;min-height:30px;background:#ffffff80}.danger{color:#9f2d2d}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #2f8a6b;outline-offset:2px}.mode-pill,.status-pill{display:inline-flex;align-items:center;min-height:28px;padding:0 10px;border-radius:999px;font-size:.82rem;font-weight:900}.mode-pill{background:#fff2bf;color:#6f4d00}.status-pill--open{background:#dff4e7;color:#16643f}.status-pill--closed{background:#f7dfdf;color:#8d2c2c}.status-pill--archived{background:#ece6d7;color:#5c513f}.status-pill--deleted{background:#eee;color:#777}.session-controls{display:grid;grid-template-columns:minmax(170px,1fr) minmax(104px,.48fr) minmax(132px,.56fr);gap:10px;max-width:100%;margin-bottom:12px}.search-field{display:flex;align-items:center;gap:8px;margin:0;min-width:0}.session-controls input,.session-controls select{min-width:0}.session-list{display:grid;gap:10px}.backup-history{display:grid;gap:10px;margin-top:18px;padding-top:18px;border-top:1px solid #e4ddd0}.backup-history__header,.backup-record{display:flex;align-items:center;justify-content:space-between;gap:12px}.backup-history__header h3,.backup-history__header p{margin:0}.backup-history__header p,.backup-record small{color:#62665f}.backup-history__list{display:grid;gap:8px}.backup-record{padding:12px;border:1px solid #e4ddd0;border-radius:8px;background:#fffdf8}.backup-record>div:first-child{display:grid;gap:4px}.backup-record__actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.session-row{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:12px;padding:12px;border:1px solid #e4ddd0;border-radius:8px;background:#fffdf8}.session-row__main{display:grid;justify-items:start;gap:6px;min-width:0;background:transparent;color:inherit;text-align:left}.session-row__main strong{overflow:visible;max-width:100%;text-overflow:initial;white-space:normal;line-height:1.35}.session-row__main small{line-height:1.45}.row-actions{grid-column:2}.more-menu{position:relative;display:inline-flex}.more-menu>summary{list-style:none}.more-menu>summary::-webkit-details-marker{display:none}.more-menu__content{position:absolute;right:0;top:calc(100% + 6px);z-index:10;display:grid;gap:6px;min-width:150px;padding:8px;border:1px solid #d8d1c4;border-radius:8px;background:#fffdf8;box-shadow:0 14px 30px #37271629}.more-menu__content button{display:inline-flex;align-items:center;justify-content:flex-start;gap:8px;min-height:38px;padding:0 10px;border-radius:8px;background:transparent;color:#29312c;font-weight:800;white-space:nowrap}.session-row__main small,.empty-copy,.form-error,.form-success,.closed-notice{color:#62665f}.bulkbar{display:flex;align-items:center;gap:8px;margin:12px 0;padding:10px;border-radius:8px;background:#fff8df}.bulkbar button{background:#fffdf8;color:#1f2421;padding:0 10px}.room-header{align-items:stretch}.room-header__title{flex:1;min-width:0}.room-header__title h1{margin:8px 0;font-size:clamp(1.7rem,4vw,3.2rem);letter-spacing:0}.qr-card{display:grid;place-items:center;gap:8px;min-width:142px;padding:14px}.gauge{margin:0 0 18px;padding:14px;border:1px solid #dfd6c8;border-radius:8px;background:#ffffffb8}.gauge--compact{margin-top:16px}.gauge__track{display:flex;overflow:hidden;height:28px;border-radius:999px;background:#e9e2d6}.gauge__segment{transition:width .24s ease}.gauge__segment--agree{background:#3aa66b}.gauge__segment--disagree{background:#da5757}.gauge__segment--neutral{background:#f0c949}.gauge__legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:10px}.dot{display:inline-block;width:10px;height:10px;border-radius:50%}.dot--agree{background:#3aa66b}.dot--disagree{background:#da5757}.dot--neutral{background:#f0c949}.board{min-height:58vh;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:18px;align-content:start;padding:28px;border:12px solid #9a6a3d;border-radius:8px;background:linear-gradient(90deg,rgba(79,45,17,.08) 1px,transparent 1px),linear-gradient(rgba(79,45,17,.08) 1px,transparent 1px),#b98252;background-size:28px 28px}.board--empty{display:grid;place-items:center;color:#fff8ed;font-size:1.2rem;font-weight:800}.postit{min-height:170px;display:grid;grid-template-rows:auto 1fr auto;gap:10px;padding:16px;border-radius:6px;transform:rotate(var(--tilt));box-shadow:0 10px 20px #24180c2e}.postit header,.postit footer{display:flex;justify-content:space-between;align-items:center;font-weight:900}.postit p{margin:0;line-height:1.6}.postit--agree{background:#c8efcf}.postit--disagree{background:#ffd0d0}.postit--neutral{background:#fff1a8}.student-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f5f1e8,#e7f0e8)}.student-card{width:min(100%,520px)}.student-card--wide{width:min(100%,760px)}.student-card h1{font-size:clamp(1.7rem,4vw,2.8rem)}fieldset{border:0;padding:0;margin:0 0 14px}legend{margin-bottom:8px;font-weight:800}.stance-options{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stance-button{display:grid;gap:4px;min-height:88px;padding:12px;border:2px solid transparent;border-radius:8px;color:#1f2421}.stance-button--agree{background:#daf5e1}.stance-button--disagree{background:#ffdada}.stance-button--neutral{background:#fff1a8}.stance-button.is-active{border-color:#1f2421}.form-error{color:#9f2d2d;font-weight:800}.form-success{color:#226f54;font-weight:800}.closed-notice{padding:14px;border-radius:8px;background:#f7dfdf;color:#842a2a;font-weight:800}.modal-backdrop{position:fixed;inset:0;display:grid;place-items:center;padding:20px;background:#1d18126b}.modal{width:min(100%,520px);padding:24px}.modal__actions .primary-button{width:auto}.pdf-sheet{position:fixed;left:-10000px;top:0;width:794px;min-height:1123px;padding:48px;background:#fff;color:#1f2421;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.pdf-sheet h1{font-size:30px}.pdf-stats{display:flex;gap:12px;margin:24px 0;font-weight:800}.page--center{min-height:100vh;display:grid;place-items:center;padding:24px}@media(max-width:900px){.home,.dashboard-grid{grid-template-columns:1fr}.teacher-hero,.room-header,.topbar{align-items:stretch;flex-direction:column}.session-controls,.session-row{grid-template-columns:1fr}.backup-record{align-items:flex-start;flex-direction:column}.row-actions{justify-content:flex-start}.stance-options{grid-template-columns:1fr}}