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(max-width:359px){main>section{padding-left:16px;padding-right:16px}.current-concept{padding:17px}.card-description{font-size:13px}.compact-header h1{font-size:15px}.small-earned{font-size:11px}.star-badge{padding:7px 10px}.question-formula{font-size:42px}.long-formula{font-size:29px}.lesson-formula{font-size:30px}.fraction-visual{padding:30px 18px}.coupon-card{gap:9px;padding:14px 12px}.coupon-card .gift-tile{width:40px;height:40px}.stats-grid{gap:7px}.stats-grid>div{padding:13px 10px}.stats-grid strong{font-size:18px}.max-earned{font-size:19px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.connection-error{color:#7e3420;background:#fff6f2;border:1px solid #e4c3b9;border-radius:12px;margin:16px 20px;padding:12px 14px;font-size:13px;line-height:1.5}.student-picker .connection-error{margin:20px 0 0}.connection-error .small-button{margin-top:10px}.connection-status{z-index:20;background:var(--ink);color:#fff;border-radius:99px;padding:6px 12px;font-size:12px;position:absolute;top:8px;left:50%;transform:translate(-50%);box-shadow:0 3px 10px #0002}.student-card:disabled{opacity:.6}.student-color-1{--student-color:#3265a5;--student-surface:#e9eef9}.student-color-2{--student-color:#a75422;--student-surface:#fceddd}.student-color-3{--student-color:#206d4d;--student-surface:#e8f3ed}.student-color-4{--student-color:#6d4892;--student-surface:#f0e9f7}.student-avatar{background:var(--student-surface);color:var(--student-color);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:84px;height:84px;font-size:36px;font-weight:800;display:inline-flex}.student-picker{padding-top:calc(36px + env(safe-area-inset-top,0px))}.student-picker .eyebrow{font-size:12px;line-height:20px}.student-picker h1{letter-spacing:-1.2px;margin-top:8px;font-size:30px;font-weight:800;line-height:44px}.student-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:24px;display:grid}.student-card{min-height:186px;color:var(--ink);background:#fff;border:1px solid #deddd8;border-radius:22px;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.student-card strong{font-size:17px;line-height:24px}.student-card:hover{border-color:var(--student-color);background:#fdfdfb}.student-card:active{background:var(--student-surface)}.bottom-nav button{color:#818177;padding:10px 0}.nav-icon{border-radius:14px;justify-content:center;align-items:center;width:68px;height:48px;transition:background .15s,color .15s;display:flex}.bottom-nav .active .nav-icon{background:var(--ink);color:#fff}.notification-dot{top:7px;right:16px}.calendar-screen{padding-top:calc(20px + env(safe-area-inset-top,0px))}.calendar-header{justify-content:space-between;align-items:center;gap:12px;display:flex}.student-chip{background:var(--surface);min-height:44px;color:var(--ink);border-radius:99px;align-items:center;gap:8px;padding:4px 12px 4px 4px;display:flex}.student-chip .student-avatar{width:36px;height:36px;font-size:16px}.student-chip strong{white-space:nowrap;font-size:13px}.calendar-totals{align-items:center;gap:8px;display:flex}.calendar-totals .star-badge{gap:4px;min-height:32px;padding:6px 10px;font-size:13px}.earned-mini{background:var(--green-pale);min-height:32px;color:var(--green);white-space:nowrap;border-radius:99px;justify-content:center;align-items:center;padding:6px 10px;font-size:13px;font-weight:700;display:flex}.month-toolbar{justify-content:space-between;align-items:center;min-height:44px;margin-top:20px;display:flex}.month-toolbar button{width:44px;height:44px;color:var(--ink);background:0 0;justify-content:center;align-items:center;display:flex}.month-toolbar h1{letter-spacing:-.8px;font-size:22px;font-weight:800;line-height:32px}.calendar-weekdays{text-align:center;color:#737269;grid-template-columns:repeat(7,minmax(0,1fr));margin-top:16px;margin-bottom:4px;font-size:12px;line-height:24px;display:grid}.calendar-grid{grid-template-columns:repeat(7,minmax(0,1fr));display:grid}.calendar-day{min-width:0;height:56px;color:var(--ink);background:0 0;flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0;font-size:15px;font-weight:700;display:flex}.day-number{border:1px solid #0000;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.calendar-day.weekend{color:#8b8b81}.calendar-day.today .day-number{border-color:var(--ink);color:var(--ink)}.calendar-day.selected .day-number{border-color:var(--ink);background:var(--ink);color:#fff}.calendar-day:hover:not(.selected) .day-number{background:var(--surface)}.day-marker{color:#cac9c0;flex-shrink:0;display:block;overflow:visible}.day-marker.completed{color:var(--green)}.day-marker.planned{color:var(--gold)}.day-marker.none{visibility:hidden}.calendar-legend{color:#74736a;white-space:nowrap;justify-content:center;align-items:center;gap:14px;min-height:20px;margin-top:14px;font-size:11px;display:flex}.calendar-legend>span{align-items:center;gap:5px;display:flex}.calendar-legend>span:last-child svg{color:var(--ink)}.selected-lesson{border-top:1px solid var(--line);margin-top:24px;padding-top:16px}.selected-lesson h2{font-size:14px;font-weight:700;line-height:22px}.calendar-lesson-card{text-align:left;border:1px solid var(--ink);width:100%;min-height:116px;color:var(--ink);background:#fff;border-radius:18px;justify-content:space-between;align-items:center;gap:10px;margin-top:10px;padding:16px;display:flex}.calendar-lesson-content{flex-direction:column;flex:1;gap:8px;min-width:0;display:flex}.calendar-lesson-content .eyebrow{font-size:12px}.calendar-preview-formulas{white-space:nowrap;align-items:center;gap:8px;font-size:22px;display:flex}.calendar-preview-formulas math{font-size:inherit}.calendar-lesson-status{color:#68675d;align-items:center;gap:4px;font-size:11px;display:flex}.calendar-lesson-status>span{margin:0 1px}.lesson-open{background:var(--ink);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.no-lesson,.no-history{color:#79786e;margin-top:12px;font-size:14px;line-height:1.6}.profile-screen{padding-top:calc(20px + env(safe-area-inset-top,0px))}.profile-header{gap:12px;min-height:64px;margin-bottom:20px}.profile-header .student-avatar{border:2px solid var(--student-color);width:64px;height:64px;font-size:25px;box-shadow:inset 0 0 0 3px #fff}.profile-header h1{font-size:20px;line-height:29px}.profile-header .login-status{color:var(--green);align-items:center;gap:5px;margin-top:2px;font-size:12px;font-weight:700;line-height:20px;display:flex}.student-switch{min-height:44px;color:var(--ink);white-space:nowrap;background:#fff;border:1px solid #d7d6ce;border-radius:12px;margin-left:auto;padding:10px 12px;font-size:12px;font-weight:700}.profile-screen .vault-card{padding:20px}.profile-screen .stats-grid{margin-top:20px}.week-heading{justify-content:space-between;align-items:center;min-height:36px;margin-top:24px;display:flex}.week-heading h2{font-size:18px;font-weight:700}.week-heading button{min-height:44px;color:var(--gold-text);background:0 0;align-items:center;gap:3px;font-size:13px;font-weight:700;display:flex}.week-progress{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:4px;display:grid}.week-progress button{border:1px solid var(--line);min-height:76px;color:var(--ink);background:#fff;border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:6px;display:flex}.week-progress button.today{border-color:var(--ink)}.week-progress button>span{color:#848379;font-size:12px;line-height:16px}.week-progress strong{font-size:16px;line-height:20px}.profile-screen .single-heading{margin-top:24px;margin-bottom:14px}.coupon-ledger-icon,.practice-ledger-icon{background:var(--gold-pale);color:var(--gold-text)}.ledger-item .coupon-ledger-amount{color:var(--gold-text);font-size:13px}.ledger-item .practice-ledger-amount{color:var(--ink);font-size:15px}.lesson-date{color:var(--muted);white-space:nowrap;margin-left:auto;font-size:12px;font-weight:700}.lesson-date+.lesson-count{margin-left:12px}@media (max-width:359px){.student-card{min-height:170px}.student-avatar{width:74px;height:74px;font-size:32px}.calendar-preview-formulas{gap:5px;font-size:18px}.calendar-lesson-card{gap:8px;padding:13px}.lesson-open{width:36px;height:36px}.calendar-legend{gap:10px}.profile-header{gap:9px}.profile-header .student-avatar{width:54px;height:54px}.student-switch{padding:9px;font-size:11px}.profile-header h1{font-size:19px}.lesson-date{font-size:11px}.lesson-date+.lesson-count{margin-left:7px}}.bottom-nav{padding-left:14px;padding-right:14px}.profile-screen .stats-grid span{line-height:18px;display:block}.profile-screen .stats-grid strong{margin-top:8px;line-height:28px}.profile-screen .vault-card h2{font-size:40px;line-height:1.2}.month-toolbar{margin-top:16px}.selected-lesson{margin-top:18px}