/* ЭлМШ 6.18 — shared surfaces, typography and actions */
:root{--bg:var(--tone-20);--panel:var(--tone-26);--panel2:var(--tone-43);--line:var(--tone-54);--muted:var(--tone-175);--orange:var(--tone-175);--text:var(--tone-240)}
body{line-height:1.6}h1,h2,h3{color:var(--text)}h1{letter-spacing:-.045em}small,.hint,.form-note,.footnote{font-size:13px;line-height:1.6}input::placeholder,textarea::placeholder{color:var(--tone-149)}
.nav{padding-top:16px;padding-bottom:16px}.user-block{gap:12px}.user-block>div{max-width:240px}.user-block strong{display:block;overflow-wrap:anywhere}.avatar-button{border:1px solid transparent;border-radius:50%;padding:3px;transition:border-color .15s}.avatar-button:hover{border-color:var(--orange)}
.primary,.secondary,.danger{min-height:44px;border-radius:11px;padding:11px 18px;font-size:14px;font-weight:650;line-height:1.4;transition:background .15s,border-color .15s,box-shadow .15s;white-space:normal;text-align:center}
.primary{background:var(--orange);color:var(--tone-26);border-color:var(--orange);box-shadow:0 2px 0 #00000033}.primary:hover{background:var(--tone-175);border-color:var(--tone-175);box-shadow:0 3px 16px #afafaf14}.secondary{background:var(--tone-43);border-color:var(--tone-85);color:var(--tone-240)}.secondary:hover{background:var(--tone-54);border-color:var(--tone-105)}.danger{background:var(--tone-43);border:1px solid var(--tone-105);color:var(--tone-199)}.compact{padding:9px 14px;min-height:40px;font-size:13px}
.primary svg,.secondary svg,.profile-caption svg{width:18px;height:18px;flex-shrink:0}.actions{gap:10px}.back{min-height:40px;display:inline-flex;align-items:center;padding:4px 0;margin-bottom:16px}.card,.queue-card,.homework-card{border-radius:16px}.card h2{line-height:1.3}.section-title{gap:16px;flex-wrap:wrap}.admin-page-heading{gap:24px;align-items:center}.admin-page-heading h1{font-size:clamp(28px,3vw,38px)}
input,select,textarea{border-radius:10px;background:var(--tone-20);border-color:var(--tone-85);padding:12px 14px;min-height:46px;color:var(--text)}label{font-size:14px;line-height:1.5}input:disabled,select:disabled{opacity:.65;cursor:not-allowed}button:disabled{opacity:.5}input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--tone-199);outline-offset:2px}button:focus-visible,a:focus-visible,summary:focus-visible{outline-color:var(--tone-199)}
.admin-sidebar{background:var(--tone-26);border:1px solid var(--tone-54);border-radius:18px;padding:14px}.admin-sidebar-label{font-size:11px;letter-spacing:.12em;color:var(--tone-199)}.admin-nav-label{color:var(--tone-149);letter-spacing:.12em}.admin-nav-item{min-height:43px;border-radius:10px;color:var(--tone-199);padding:10px 12px;line-height:1.35}.admin-nav-item.selected{background:var(--tone-43);color:var(--tone-199);box-shadow:inset 3px 0 var(--tone-175)}.admin-nav-item:hover{background:var(--tone-43)}.admin-nav-item svg{width:19px;height:19px}.admin-shell{gap:28px}.student-group-info{color:var(--muted)}
.workspace-toolbar{gap:12px;align-items:center}.workspace-toolbar select{margin:0}.workspace-toolbar .secondary{flex-shrink:0}.notice{border-radius:12px;background:var(--tone-34);border:1px solid var(--tone-69);color:var(--tone-199);padding:16px 20px;font-size:13px;line-height:1.7}.badge{border-radius:6px;font-size:12px}.written-check-row{border-radius:16px;padding:22px;gap:20px}.written-check-heading{gap:5px}.written-check-student{font-size:16px}.written-check-assignment{font-weight:500}.written-check-row small{font-size:13px}.written-check-row p{line-height:1.7}.homework-files a{border-radius:10px;min-height:44px}.homework-title{line-height:1.35}
dialog{width:min(660px,calc(100vw - 32px));max-height:calc(100dvh - 40px);border-radius:22px;padding:30px;background:var(--tone-34);border-color:var(--tone-85);box-shadow:0 28px 100px #00000099}dialog::backdrop{background:#0c0c0cbf;backdrop-filter:blur(5px)}dialog h2{font-size:26px;letter-spacing:-.035em;line-height:1.3;margin-bottom:12px}.dialog-actions{padding-top:20px;margin-top:22px;border-top:1px solid var(--line);gap:12px}.dialog-actions button{min-width:112px}.dialog-actions .primary{min-width:190px}.dialog-sub{font-size:15px}.form-error:empty{margin:0}.form-error{line-height:1.5;font-size:14px}.form-grid{gap:16px}
/* Compact entry page: the whole choice is one coherent surface. */
.welcome-studio{max-width:1100px;margin:10px auto 0;text-align:left}.welcome-heading{display:flex;justify-content:space-between;align-items:center;gap:40px;padding:12px 0 26px}.welcome-heading h1{font-size:clamp(32px,4.4vw,56px);line-height:1.08;letter-spacing:-.045em;margin:0 0 18px;font-weight:750}.welcome-heading .eyebrow{margin-bottom:20px;letter-spacing:.13em}.welcome-heading .lead{font-size:16px;margin:0;color:var(--tone-199)}.welcome-emblem{display:flex;align-items:center;flex-direction:column;gap:16px;padding:6px 22px;flex-shrink:0}.welcome-emblem img{width:130px;height:130px;object-fit:contain}.welcome-emblem span{font-size:9px;color:var(--tone-175);letter-spacing:.16em}.entry-label{display:flex;align-items:center;gap:14px;border-top:1px solid var(--line);padding-top:20px}.entry-label>span{font-size:15px;font-weight:600}.entry-label small{color:var(--tone-175)}.welcome-studio .role-grid{margin:18px 0 20px;gap:16px;max-width:none;grid-template-columns:repeat(3,minmax(0,1fr))}.welcome-studio .role-card{position:relative;padding:22px 22px 18px;min-height:240px;border-radius:18px;display:flex;flex-direction:column;background:var(--tone-26);border:1px solid var(--tone-69);transition:border-color .18s,background .18s,transform .18s}.welcome-studio .role-card:hover{background:var(--tone-34);border-color:var(--tone-175);transform:translateY(-3px)}.role-number{font-size:10px;letter-spacing:.13em;color:var(--tone-175);font-weight:600;margin-bottom:18px}.welcome-studio .role-icon{position:absolute;top:18px;right:20px;width:39px;min-width:39px;height:39px;border:0;border-radius:11px;background:var(--tone-43);font-size:24px;color:var(--tone-175)}.welcome-studio .role-card h2{font-size:25px;margin:10px 0 10px;letter-spacing:-.025em}.welcome-studio .role-card p{font-size:14px;line-height:1.65;color:var(--tone-199);margin:0 0 24px}.welcome-studio .role-link{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--tone-69);padding-top:14px;margin-top:auto;font-size:13px;color:var(--tone-199)}.role-link b{font-size:21px;font-weight:400;line-height:1}.welcome-studio .role-card:first-child{background:var(--tone-34);border-color:var(--tone-85)}.welcome-studio .role-card:first-child .role-link{color:var(--tone-175);border-color:var(--tone-69)}.welcome-baseline{display:flex;justify-content:space-between;gap:20px;color:var(--tone-175);font-size:12px;padding:0 2px}.welcome-studio+.footnote{display:none}
.welcome-studio:before,.welcome-studio:after,.welcome-studio .role-card:after,.welcome-studio .role-link:after{content:none}.welcome-studio .role-card p{min-height:0}.welcome-emblem img{background:var(--tone-240);border-radius:24px;padding:7px;border:1px solid var(--tone-221);box-shadow:0 0 0 5px #afafaf0f}
.profile-toolbar .actions{align-items:stretch}.profile-toolbar .actions button{align-self:stretch}.profile-editor .dialog-actions{position:sticky;bottom:-30px;background:var(--tone-34);padding-bottom:16px;box-shadow:0 -12px 14px var(--tone-34)}#avatarCropControls{border-top:1px solid var(--tone-69);padding-top:18px}#avatarCropControls input[type=range]{accent-color:var(--orange);padding:0;min-height:32px}.avatar-preview .avatar.large{width:128px;height:128px}.avatar-choice small{font-size:12px}
/* Profile: identity first, deliberate actions, then the school record. */
.profile-page-heading{display:flex;justify-content:space-between;align-items:center;margin:0 0 18px;gap:16px}.profile-page-heading .eyebrow{margin:0;color:var(--tone-199);font-size:10px;letter-spacing:.15em}.profile-hero{position:relative;border:1px solid var(--tone-69);border-radius:20px;background:linear-gradient(112deg,var(--tone-34) 0%,var(--tone-34) 64%,var(--tone-34) 100%);padding:30px;gap:28px;min-height:210px;overflow:hidden}.profile-hero:before{content:'';position:absolute;left:0;top:28px;bottom:28px;width:4px;border-radius:0 4px 4px 0;background:var(--tone-175)}.profile-identity{gap:24px;min-width:0}.profile-identity>div:last-child{min-width:0}.profile-identity h1{font-size:clamp(26px,3vw,40px);line-height:1.15;max-width:600px;overflow-wrap:anywhere;letter-spacing:-.04em}.profile-identity .eyebrow{font-size:10px;letter-spacing:.12em;color:var(--tone-199)}.profile-avatar{flex-shrink:0}.profile-avatar .avatar.large{width:100px;height:100px;font-size:38px;border:1px solid var(--tone-105);box-shadow:0 0 0 7px #ffffff05}.profile-hero p{font-size:14px;color:var(--tone-199);margin-bottom:0}.profile-rating{min-width:160px;gap:15px}.profile-rating b{font-size:42px;font-weight:750}.staff-role-mark{background:#1a1a1a80;border:1px solid var(--tone-85);padding:16px;border-radius:14px}.staff-role-mark strong{font-size:15px}.staff-role-mark small{font-size:12px}
.profile-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 2px;margin-bottom:8px}.profile-toolbar .actions{display:flex;flex-wrap:wrap;justify-content:flex-end}.profile-caption{display:flex;gap:12px;align-items:center;font-size:14px;color:var(--tone-221)}.profile-caption svg{color:var(--tone-175)}.profile-caption small{font-size:12px}.profile-toolbar .secondary svg{display:none}.profile-about{margin:0 0 24px}.profile-about p{font-size:15px;max-width:750px;overflow-wrap:anywhere}.profile-details{display:flex;gap:12px;flex-wrap:wrap}.profile-details span{padding:5px 10px;background:var(--tone-43);border-radius:7px;color:var(--tone-199);font-size:13px}.profile-stats,.staff-stats{gap:14px}.stat{border-radius:14px;padding:20px}.stat b{font-variant-numeric:tabular-nums}.stat span{font-size:13px;color:var(--tone-199)}.stat small{font-size:12px}.progress-panel{margin-top:8px;border-radius:14px}.profile-columns{gap:24px}.profile-columns .card{padding:22px}.profile-columns h2{font-size:20px}.profile-columns .written-check-row{padding:15px 0;border-radius:0}
.editor-intro{margin-bottom:22px}.editor-intro .eyebrow{font-size:10px;margin:0 0 8px;color:var(--tone-199)}.editor-intro p{color:var(--tone-199);margin:0;font-size:14px}.editor-avatar{display:flex;gap:20px;align-items:center;border:1px solid var(--tone-69);border-radius:15px;padding:20px;margin-bottom:26px;background:var(--tone-43)}.editor-avatar .avatar.large{width:72px;height:72px;flex-shrink:0;font-size:30px}.editor-avatar strong{font-size:14px}.editor-avatar p{font-size:13px;color:var(--tone-175);margin:5px 0 12px}.editor-section{border-top:1px solid var(--tone-69);padding-top:24px;margin-top:22px}.editor-section-title{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}.editor-section-title>span:first-child{font-size:12px;color:var(--tone-175);padding-top:3px;font-variant-numeric:tabular-nums}.editor-section-title h3{font-size:17px;margin:0 0 4px}.editor-section-title p{font-size:13px;color:var(--tone-199);margin:0}.locked-information{padding:18px;background:var(--tone-26);border:1px dashed var(--tone-85);border-radius:12px;display:grid;grid-template-columns:1fr 1fr;gap:14px}.locked-information strong{font-size:14px;display:block;overflow-wrap:anywhere}.locked-information p{grid-column:1/-1;font-size:12px;color:var(--tone-175);margin:0}.access-settings summary{display:flex;justify-content:space-between;align-items:flex-start;list-style:none}.access-settings summary::-webkit-details-marker{display:none}.access-settings summary .editor-section-title{margin-bottom:0}.access-settings[open] summary{margin-bottom:22px}.access-settings small{font-size:12px;font-weight:400}
.preference-row{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 0;margin:0;border-bottom:1px solid var(--tone-69)}.preference-row strong{font-size:15px;display:block}.preference-row small{font-size:13px;max-width:410px;line-height:1.6;font-weight:400;margin-top:5px}.switch-input{appearance:none;display:block;flex:0 0 46px;width:46px;min-height:26px;height:26px;padding:0;border-radius:20px;background:var(--tone-69);border:1px solid var(--tone-126);margin:0;position:relative;cursor:pointer}.switch-input:before{content:'';position:absolute;width:18px;height:18px;background:var(--tone-221);border-radius:50%;top:3px;left:3px;transition:transform .15s}.switch-input:checked{background:var(--tone-175);border-color:var(--tone-199)}.switch-input:checked:before{transform:translateX(19px);background:var(--tone-34)}.notification-options .preference-row:first-child{padding-top:6px}
/* Group policies */
.group-settings-summary{padding:22px 24px;margin:24px 0;background:var(--tone-34);border:1px solid var(--tone-69);border-radius:16px}.group-settings-summary .eyebrow{font-size:10px;margin:0 0 8px}.group-settings-summary p{font-size:20px;color:var(--tone-240);margin:0 0 8px;letter-spacing:-.02em}.group-settings-summary>span:last-child{font-size:13px;color:var(--tone-199);display:block;max-width:670px}.group-settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.group-settings-card{border:1px solid var(--tone-69);border-radius:18px;background:var(--tone-34);padding:24px;min-width:0}.group-card-heading{display:flex;justify-content:space-between;align-items:center;gap:14px}.group-card-heading h2{font-size:26px;letter-spacing:-.04em;margin:0}.group-card-heading .badge{font-size:10px;white-space:normal;text-align:center}.group-curator{padding:18px 0}.group-curator small{font-size:12px}.group-curator strong{font-size:15px}.group-rate-pair{display:flex;gap:26px;padding:16px 0;border-top:1px solid var(--tone-69);border-bottom:1px solid var(--tone-69)}.group-rate-pair b{font-size:28px;color:var(--tone-199);display:flex;align-items:baseline;gap:6px;line-height:1.2;font-variant-numeric:tabular-nums}.group-rate-pair b small{font-size:11px;font-weight:500;color:var(--tone-175)}.group-rate-pair span{display:block;font-size:12px;color:var(--tone-199);padding-top:4px}.group-policy-line{display:flex;gap:8px;align-items:center;padding-top:16px;font-size:13px;color:var(--tone-199)}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--tone-149)}.status-dot.enabled{background:var(--tone-199)}.group-card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px}.group-card-footer small{font-size:11px}.group-card-footer button{flex-shrink:0}
@media(min-width:1100px){body:has(.welcome-studio) main{min-height:calc(100vh - 245px);padding-top:24px;padding-bottom:36px}.welcome-studio .role-card{min-height:226px}}
@media(max-width:900px){.profile-hero{padding:24px}.profile-toolbar{align-items:flex-start;flex-direction:column}.profile-toolbar .actions{justify-content:flex-start;width:100%}.profile-toolbar .actions button{flex:1}.welcome-emblem{padding:0}.welcome-emblem img{width:105px;height:105px}.welcome-emblem span{display:none}.welcome-heading{gap:20px}.welcome-studio .role-card{padding:20px 17px 16px}.role-number{font-size:9px}.welcome-studio .role-card h2{font-size:22px}.welcome-studio .role-icon{right:15px;width:32px;height:32px;min-width:32px;font-size:20px}.welcome-studio .role-link{font-size:12px}.group-settings-card{padding:20px}}
@media(max-width:640px){main{padding:24px 16px}.nav{padding:12px 16px;gap:12px}.brand small{font-size:9px}.user-block{gap:8px}.user-block>div{max-width:120px}.user-block>div strong{font-size:12px}.user-block>div small{font-size:10px}.user-block .compact{padding:7px 10px;min-height:36px;font-size:12px}.welcome-studio{margin:0}.welcome-heading{padding:0 0 22px}.welcome-heading h1{font-size:34px}.welcome-heading .eyebrow{font-size:9px;letter-spacing:.09em;margin-bottom:14px}.welcome-heading .lead{font-size:14px;max-width:320px}.welcome-emblem{display:none}.welcome-studio .role-grid{grid-template-columns:1fr;gap:10px;margin-top:14px}.welcome-studio .role-card{min-height:0;padding:17px 18px}.role-number{margin-bottom:4px}.welcome-studio .role-card h2{font-size:22px;margin:5px 0 5px}.welcome-studio .role-card p{font-size:13px;margin-bottom:12px}.welcome-studio .role-card p br{display:none}.welcome-studio .role-link{padding-top:10px;font-size:12px}.welcome-studio .role-icon{right:18px;top:18px;width:36px;height:36px}.welcome-baseline{display:block;font-size:11px}.welcome-baseline span{display:block;margin-top:4px}.profile-page-heading{gap:8px}.profile-page-heading .eyebrow{font-size:9px}.profile-page-heading .badge{font-size:10px}.profile-hero{padding:24px 20px;gap:24px;border-radius:17px}.profile-identity{gap:17px;align-items:center}.profile-identity h1{font-size:27px;margin-bottom:12px}.profile-avatar .avatar.large{width:72px;height:72px;font-size:28px}.profile-identity .eyebrow{font-size:9px}.profile-hero p{font-size:13px}.staff-role-mark{padding:12px 16px;align-self:stretch}.profile-toolbar{gap:16px;padding:20px 0}.profile-toolbar .actions{gap:8px}.profile-toolbar .actions button{padding:11px;font-size:12px;min-height:46px}.profile-toolbar .primary svg{display:none}.profile-caption{font-size:13px}.profile-caption small{font-size:12px}.profile-stats,.staff-stats{gap:10px;grid-template-columns:1fr 1fr}.stat{padding:17px}.stat b{font-size:28px}.stat span,.stat small{font-size:12px}.group-settings-grid{grid-template-columns:1fr}.group-settings-summary{padding:18px}.group-settings-summary p{font-size:18px}.admin-shell{gap:20px}.admin-sidebar{padding:8px 10px;border-radius:13px}.admin-page-heading{align-items:flex-start;gap:16px}.admin-page-heading .primary{min-height:42px}.section-title h2{font-size:19px}dialog{width:calc(100vw - 20px);padding:24px 20px;border-radius:18px;max-height:calc(100dvh - 24px)}dialog h2{font-size:24px}.editor-avatar{padding:16px;gap:15px}.editor-avatar .avatar.large{width:56px;height:56px;font-size:24px}.editor-avatar p{font-size:12px}.editor-avatar strong{font-size:13px}.locked-information{grid-template-columns:1fr}.dialog-actions{gap:9px;display:flex}.dialog-actions button,.dialog-actions .primary{min-width:0;flex:1;font-size:13px}.preference-row{gap:15px}.preference-row strong{font-size:14px}.preference-row small{font-size:12px}.written-check-row{padding:18px;gap:14px}.written-check-row .secondary{min-height:42px}.form-grid{grid-template-columns:1fr}.profile-columns .card{padding:18px}}
@media(prefers-reduced-motion:reduce){*,*:before{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.homework-files .homework-pdf{max-width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--tone-69);border-radius:10px;background:var(--tone-26);color:var(--tone-240);font-size:12px;line-height:1.6;text-align:left;white-space:normal;overflow-wrap:anywhere}.homework-files .homework-pdf:hover{border-color:var(--orange);color:var(--tone-199)}.homework-pdf small{color:var(--tone-175);white-space:nowrap}.pdf-name{font-weight:650;overflow-wrap:anywhere}.pdf-dialog p{line-height:1.7}.pdf-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}.pdf-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border:1px solid var(--tone-69);border-radius:10px;text-decoration:none;font-weight:650}.pdf-actions a.primary{background:var(--orange);color:var(--tone-20);border-color:var(--orange)}.pdf-actions a.secondary{background:var(--tone-43);color:var(--tone-240)}@media(max-width:480px){.pdf-actions a{flex:1 1 100%}}

/* Supplemental problem sheets: visually distinct, while preserving the homework card system. */
.homework-card.supplement{overflow:hidden;border-color:var(--tone-105);border-left-color:var(--tone-149);background:radial-gradient(circle at 100% 0,#45454533 0,transparent 44%),linear-gradient(135deg,var(--tone-43),var(--tone-26))}
.supplement-ribbon{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:-22px -24px 20px;padding:11px 24px;background:var(--tone-54);border-bottom:1px solid var(--tone-105);color:var(--tone-199)}
.supplement-ribbon span{font-size:10px;font-weight:850;letter-spacing:.14em}.supplement-ribbon small{margin:0;color:var(--tone-199);text-align:right}
.supplement-parent{margin:8px 0 0;color:var(--tone-199);font-size:12px}.homework-card.supplement .task-chips span{border-color:var(--tone-85);background:var(--tone-43);color:var(--tone-199)}
.homework-files .supplement-add{border-color:var(--tone-105);color:var(--tone-199);background:var(--tone-43)}.homework-files .supplement-add:hover{border-color:var(--tone-149);background:var(--tone-54)}
.supplement-form-intro{margin:0 0 22px;padding:18px 20px;border:1px solid var(--tone-105);border-radius:14px;background:linear-gradient(135deg,var(--tone-54),var(--tone-34))}
.supplement-form-intro span{display:block;margin-bottom:8px;color:var(--tone-175);font-size:10px;font-weight:850;letter-spacing:.14em}.supplement-form-intro strong{display:block;font-size:17px}.supplement-form-intro p{margin:8px 0 0;color:var(--tone-199);font-size:13px;line-height:1.6}

/* Student homework: keep work in progress prominent and solved sheets available in their own archive. */
.student-homework{min-width:0}.homework-overview{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 24px;margin-bottom:26px;border:1px solid var(--tone-69);border-radius:16px;background:linear-gradient(110deg,var(--tone-43),var(--tone-34))}.homework-overview>div{min-width:0}.homework-overview h2{margin:5px 0 7px;font-size:clamp(21px,2.3vw,28px)}.homework-overview p{max-width:60ch;margin:0;color:var(--tone-175);font-size:13px;line-height:1.55}.homework-overview-count{display:grid;place-items:center;flex:0 0 56px;width:56px;height:56px;border:1px solid var(--tone-126);border-radius:15px;background:var(--tone-54);color:var(--tone-175);font-size:27px;font-weight:850}.student-homework>.section-title{margin:0 0 13px}.student-homework>.section-title.homework-subsection{margin-top:32px}.student-homework>.section-title .eyebrow{color:var(--tone-199)}.homework-empty{padding:22px 24px;border:1px dashed var(--tone-85);border-radius:13px;color:var(--tone-175);font-size:14px;line-height:1.55}.homework-archive{margin-top:22px;padding:0 20px;border:1px solid var(--tone-69);border-radius:13px;background:var(--tone-34)}.homework-archive>summary{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:60px;color:var(--tone-221);font-size:15px;font-weight:700;list-style:none}.homework-archive>summary::-webkit-details-marker{display:none}.homework-archive>summary::before{content:'▸';margin-right:9px;color:var(--tone-175)}.homework-archive[open]>summary::before{content:'▾'}.homework-archive>summary span{margin-left:auto;padding:4px 9px;border-radius:7px;background:var(--tone-54);color:var(--tone-221);font-size:12px}.homework-archive>p{margin:0 0 14px;color:var(--tone-175);font-size:13px;line-height:1.5}.homework-archive .homework-card{margin:0 0 14px}.homework-card.complete{border-left-color:var(--tone-149)}.homework-card.supplement.complete{border-left-color:var(--tone-149)}.homework-progress{display:grid;gap:7px;margin:14px 0 4px;max-width:330px}.homework-progress span{color:var(--tone-199);font-size:12px;font-weight:700}.homework-progress progress{width:100%;height:7px;appearance:none;border:0;border-radius:10px;overflow:hidden;background:var(--tone-69)}.homework-progress progress::-webkit-progress-bar{background:var(--tone-69)}.homework-progress progress::-webkit-progress-value{background:var(--tone-175);border-radius:10px}.homework-progress progress::-moz-progress-bar{background:var(--tone-175);border-radius:10px}.student-homework .task-chips .is-accepted{border-color:var(--tone-105);background:var(--tone-43);color:var(--tone-221)}
@media(max-width:600px){.homework-overview{padding:18px;align-items:flex-start;gap:12px}.homework-overview-count{flex-basis:44px;width:44px;height:44px;font-size:22px}.homework-archive{padding:0 13px}.homework-archive>summary{font-size:14px}.homework-progress{max-width:none}.student-homework>.section-title.homework-subsection{align-items:end}}
.supplement-booking{margin:0 0 20px;padding:17px;border:1px solid var(--tone-85);border-radius:13px;background:var(--tone-34)}.supplement-booking>strong{color:var(--tone-199)}.supplement-booking>p{margin:5px 0 12px;color:var(--tone-175);font-size:12px}.supplement-booking>div{display:flex;flex-wrap:wrap;gap:8px}.supplement-booking button{flex:1 1 220px;border-color:var(--tone-105)}.supplement-booking button.selected{border-color:var(--tone-175);background:var(--tone-69);color:var(--tone-240);box-shadow:0 0 0 1px #afafaf44}.supplement-task-head{padding:12px 14px;border-radius:10px;background:var(--tone-34);border:1px solid var(--tone-85)}.supplement-task-head strong{color:var(--tone-199)}
@media(max-width:900px){.supplement-ribbon{margin:-18px -18px 18px;padding:11px 18px}}
@media(max-width:540px){.supplement-ribbon{align-items:flex-start;flex-direction:column;gap:3px}.supplement-ribbon small{text-align:left}.supplement-booking button{width:100%}}

/* Multi-sheet listening booking and resilient narrow-screen layout. */
html,body{max-width:100%}
body{overflow-x:clip}
main,.page-head,.page-head>div,.admin-shell,.admin-workspace,.student-workspace,.card,.queue-card,dialog form{min-width:0}
.page-head{align-items:flex-start;flex-wrap:wrap}
.page-head>div{flex:1 1 360px}
.page-head>.badge{flex:0 1 auto;max-width:100%;white-space:normal;overflow-wrap:anywhere;line-height:1.45;text-align:left}
.booking-intro{margin:0 0 18px;color:var(--tone-199);font-size:13px;line-height:1.65}
.booking-sheet-list,.result-sheet-list{display:grid;gap:14px;margin-top:18px}
.booking-sheet,.result-sheet{min-width:0;margin:0;padding:16px;border:1px solid var(--tone-69);border-radius:14px;background:var(--tone-26)}
.booking-sheet>legend,.result-sheet>legend{display:grid;max-width:calc(100% - 10px);gap:3px;padding:0 8px;color:var(--tone-240);font-size:14px;font-weight:750;overflow-wrap:anywhere}
.booking-sheet>legend small,.result-sheet>legend small{font-size:11px;font-weight:450;color:var(--tone-175);line-height:1.45;overflow-wrap:anywhere}
.booking-sheet.is-supplement{border-color:var(--tone-105);background:var(--tone-34)}
.booking-sheet.is-supplement>legend span{color:var(--tone-199)}
.booking-sheet .booking-task-grid{max-height:none;overflow:visible}
.booking-sheet .booking-task-grid span small{margin-top:2px;color:inherit;font-size:9px}
.booking-selection-summary{display:block;position:sticky;bottom:-1px;z-index:1;margin:18px 0 0;padding:12px 15px;border:1px solid var(--tone-69);border-radius:10px;background:var(--tone-34);color:var(--tone-199);font-weight:750}
.booking-sheet-summary{display:grid;gap:8px;margin:12px 0}
.booking-sheet-summary>div{display:grid;gap:2px;padding-left:12px;border-left:2px solid var(--tone-105);min-width:0}
.booking-sheet-summary strong,.booking-sheet-summary span{overflow-wrap:anywhere}
.booking-sheet-summary strong{color:var(--tone-199);font-size:12px}
.booking-sheet-summary span{color:var(--tone-199);font-size:12px}
.result-help{padding:12px 14px;border-radius:10px;background:var(--tone-34);color:var(--tone-199);font-size:12px;line-height:1.55}
.result-sheet{margin:0}
.queue-assignment{line-height:1.55;overflow-wrap:anywhere}
@media(max-width:640px){
 .page-head{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;margin-bottom:22px}
 .page-head>div{width:100%}
 .page-head>.badge{justify-self:start;width:auto}
 .booking-sheet,.result-sheet{padding:13px}
 .booking-sheet .booking-task-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
 .result-sheet .booking-task-grid{grid-template-columns:minmax(0,1fr)}
 .booking-sheet-summary{margin:11px 0}
 .notice,.group-notice{overflow-wrap:anywhere}
 .primary,.secondary,.danger{max-width:100%;white-space:normal;text-align:center;overflow-wrap:anywhere}
 .window-card,.next-session,.homework-top,.calendar-heading{min-width:0}
}
@media(max-width:380px){
 main{padding-left:12px;padding-right:12px}
 .nav{padding-left:12px;padding-right:12px}
 .brand{font-size:19px;gap:8px}
 .mark{width:34px;height:34px}
 .user-block{gap:6px}
 .user-block>div{display:none}
 .user-block .compact{padding:7px 8px;font-size:11px}
 .booking-sheet .booking-task-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 dialog{width:calc(100vw - 12px);padding:20px 15px}
}