/* Task 11: presentation only, 320px and up. */
:root{--jady-ink:#102e54;--jady-muted:#53677c;--jady-line:#dce4ed}
[hidden]{display:none!important}
*,*::before,*::after{box-sizing:border-box}
.app-page,.dialog-inner,.learning-box,.dictionary-words,.welcome-card>div{min-width:0}
h1,h2,h3,p,strong,span,button,summary,label{overflow-wrap:anywhere}
button,input,select,textarea{max-width:100%}
button,summary{min-height:44px}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #2869cf;outline-offset:3px}
button:disabled{cursor:not-allowed;opacity:.55}
.dialog{max-width:min(760px,calc(100vw - 24px));max-height:calc(100dvh - 24px);overflow:auto}
.dialog-inner{max-width:100%;padding:clamp(16px,4vw,28px)}
.dialog-heading,.app-actions,.dictionary-actions{flex-wrap:wrap;gap:10px}
.menu-links{display:flex;flex-direction:column;gap:8px}
.menu-links section,.menu-links details{border-top:1px solid var(--jady-line);margin-top:12px;padding-top:12px}
.menu-links section button,.menu-links details button{display:block;width:100%;margin:6px 0;text-align:left}
.menu-links summary,#legacy-materials>summary{cursor:pointer;padding:12px;color:var(--jady-muted)}
.jady-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(115px,1fr));gap:12px;margin:18px 0}
.jady-metric{padding:16px;border:1px solid var(--jady-line);border-radius:16px;background:#fff;display:flex;flex-direction:column;gap:4px;color:var(--jady-ink)}
.jady-metric strong{font-size:28px}.jady-metric span{font-size:13px;color:var(--jady-muted)}
.is-zero{color:#64748b;background:#f5f7fa}.is-zero strong{font-weight:500;font-size:22px}
.jady-badge{display:inline-block;border:1px solid #bdcfe6;border-radius:10px;padding:8px 12px;background:#eef4ff;color:#173d73;font-weight:600}
.exam-today{font-size:20px;font-weight:700}.jady-warning{border-left:4px solid #bd7900;padding:10px;background:#fff8df}
#exams-list .learning-box{margin-top:20px}#exams-list h2{margin-bottom:8px}
#legacy-materials{margin-top:28px;border-top:1px solid var(--jady-line)}
#teacher-report{border-top:2px solid var(--jady-line);margin-top:24px;padding-top:20px}
#teacher-report>div,#teacher-lessons>div{margin-bottom:16px}
#srs-hide{background:transparent;border:1px solid var(--jady-line);box-shadow:none;font-size:14px}
#memory-calendar{max-width:100%;overflow-x:auto}#memory-daily{line-height:1.8;margin:20px 0}
@media(max-width:600px){
 .welcome-card{grid-template-columns:1fr!important;gap:20px}.welcome-card img{width:100px;max-height:140px;object-fit:contain;justify-self:end}
 .home-choices,.home-stats,.summary-grid{grid-template-columns:1fr!important}
 .app-page h1{font-size:clamp(26px,7vw,36px)}
 .dictionary-row{display:flex;flex-direction:column;align-items:stretch;gap:12px}
 .dictionary-actions{display:flex;flex-wrap:wrap}.dictionary-actions button{flex:1 1 100px}
 .app-actions{display:flex;flex-wrap:wrap}.app-actions button{flex:1 1 125px}
 .dialog-heading{align-items:flex-start}.dialog-heading h2{flex:1 1 140px}
 .home-week{gap:3px}.home-day{min-width:0;font-size:11px;padding:6px 2px}
 #teacher-item-choices,#teacher-group-list,#material-choices{max-width:100%}
 /* Legacy landing illustration must participate in mobile flow. */
 .hero{overflow:hidden}.hero-art{position:relative!important;inset:auto!important;max-width:100%;transform:none!important}
}

/* Task 11 mobile-only layout; desktop rules above remain unchanged. */
@media(max-width:768px){
 #page-progress #memory-stats{grid-template-columns:repeat(2,minmax(0,1fr))!important;grid-auto-rows:auto;align-items:stretch;align-content:start;gap:10px;margin:16px 0;min-width:0;height:auto;min-height:0}
 #page-progress #memory-stats .summary-stat{display:flex;flex-direction:column;justify-content:flex-start;gap:4px;padding:12px;min-width:0;min-height:0;height:auto;aspect-ratio:auto;margin:0}
 #page-progress #memory-stats .summary-stat strong{font-size:26px;line-height:1.15;font-weight:750}
 #page-progress #memory-stats .summary-stat span{font-size:12px;line-height:1.4;white-space:normal;overflow-wrap:anywhere}
 #page-progress #memory-stats .is-zero{background:#f5f7fa;color:#64748b}
 #page-progress #memory-stats .is-zero strong{color:#64748b;font-size:22px;font-weight:500}
 #page-progress #memory-daily{display:grid;gap:10px;margin:16px 0;font-size:14px;line-height:1.55;min-width:0}
 #page-progress .memory-daily-group{display:block;padding:10px 12px;border-left:3px solid #dce4ed;background:#f5f7fa;border-radius:8px;min-width:0;overflow-wrap:anywhere}
 #page-progress .memory-daily-separator{display:none}
 #page-progress,#page-home{min-width:0;max-width:100%}
 #memory-calendar{min-width:0;max-width:100%;overflow-x:visible}
 #memory-calendar .activity-calendar{min-width:0;max-width:100%;padding:14px}
 #memory-calendar .calendar-scroll{min-width:0;max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}
 #memory-calendar .calendar-heading{gap:10px}
 #memory-calendar .calendar-heading>div{flex-wrap:wrap;max-width:100%;gap:10px}
 #memory-calendar .calendar-heading button{min-width:44px;min-height:44px}
 #memory-calendar .calendar-months,#memory-calendar .calendar-legend{font-size:12px;line-height:1.4}
 #page-home .welcome-card{display:grid;grid-template-columns:minmax(0,1fr) 72px!important;grid-template-rows:auto auto auto auto auto;gap:10px 12px;padding:20px;min-height:0;height:auto;align-items:start}
 #page-home .welcome-card>div{display:contents}
 #page-home .welcome-card .eyebrow{grid-column:1/-1;grid-row:1}
 #page-home #home-greeting{grid-column:1;grid-row:2;margin:0;font-size:13px}
 #page-home #home-title{grid-column:1;grid-row:3;font-size:clamp(25px,4.5vw,32px);line-height:1.15;margin:0}
 #page-home #home-note{grid-column:1/-1;grid-row:4;font-size:14px;line-height:1.5;margin:4px 0}
 #page-home #home-continue{grid-column:1/-1;grid-row:5;width:100%;min-height:48px;margin:6px 0 0;white-space:normal}
 #page-home .welcome-card img{grid-column:2;grid-row:2 / 4;align-self:center;justify-self:end;width:72px;height:100px;max-height:100px;object-fit:contain}
}