:root{--bg: #f2f5f4;--surface: #ffffff;--ink: #21343c;--ink-soft: #5d7078;--line: #dde5e2;--primary: #2f6d64;--primary-dark: #24564f;--primary-soft: #e0eeea;--accent: #e3a13c;--success: #2f7d4f;--success-soft: #e2f1e7;--error: #b4574a;--error-soft: #f8e9e5;--radius: 14px;--radius-lg: 20px;--shadow: 0 1px 3px rgba(33, 52, 60, .08), 0 4px 14px rgba(33, 52, 60, .06);--font: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;--safe-top: env(safe-area-inset-top, 0px);--safe-right: env(safe-area-inset-right, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased;padding-top:var(--safe-top);padding-right:var(--safe-right);padding-bottom:var(--safe-bottom);padding-left:var(--safe-left)}h1,h2,h3{line-height:1.2;margin:0 0 .5rem}a{color:var(--primary)}button{font-family:inherit}:focus-visible{outline:3px solid var(--primary);outline-offset:2px}@media(prefers-reduced-motion:reduce){*{transition:none!important}}.page{max-width:960px;margin:0 auto;padding:24px 16px 64px}.page--narrow{max-width:640px}.page-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}.header-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;justify-content:flex-end}.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin:0 0 4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius);padding:14px 22px;font-size:1rem;font-weight:600;cursor:pointer;background:var(--primary);color:#fff;transition:background-color .15s ease;min-height:48px}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--secondary{background:var(--primary-soft);color:var(--primary-dark)}.btn--secondary:hover{background:#d0e4de}.btn--ghost{background:transparent;color:var(--ink-soft)}.btn--ghost:hover{background:var(--line)}.btn--danger{background:var(--error-soft);color:var(--error)}.btn--danger:hover{background:#f0d8d2}.btn--big{font-size:1.2rem;padding:18px 28px;width:100%}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px}.progress{background:var(--line);border-radius:999px;height:12px;overflow:hidden}.progress__fill{background:var(--primary);height:100%;border-radius:999px;transition:width .3s ease}.progress-label{font-size:.9rem;color:var(--ink-soft);margin-top:6px;text-align:right}.home{position:fixed;inset:var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:24px}.home__card{text-align:center;max-width:440px;width:100%;padding:40px 28px}.home__title{font-size:2.2rem;color:var(--primary-dark)}.home__subtitle{color:var(--ink-soft);margin:0 0 28px}.home__buttons{display:grid;gap:12px}.kid-scope{font-size:1.1rem}.kid-greeting{text-align:center;padding:36px 24px}.kid-greeting h1{font-size:2rem;color:var(--primary-dark)}.kid-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:18px 0 26px}.selector-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px}.kid-badge{background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:8px 16px;font-weight:600;font-size:1rem}.language-select{display:inline-flex;align-items:center;gap:10px;margin:16px 0 4px;color:var(--ink-soft);font-size:.95rem;font-weight:700}.language-select select{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit;font-weight:600;padding:9px 32px 9px 12px}.language-select--compact{margin:0}.settings-head{display:flex;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px}.settings-head .muted{margin:0}.field-inline{display:inline-flex;align-items:center;gap:8px;color:var(--ink-soft);font-size:.9rem;font-weight:700}.field-inline select{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit;font-weight:600;padding:8px 12px}.learning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.activity-grid,.plan-grid,.error-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.activity-grid div,.plan-grid div,.error-summary span{border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--primary-soft)}.activity-grid strong,.plan-grid strong{display:block;font-size:1.3rem;color:var(--primary-dark)}.activity-grid span,.plan-grid span{display:block;color:var(--ink-soft);font-size:.85rem}.language-activity{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.question-card{padding:28px 24px}.question-card__task{color:var(--ink-soft);font-size:1rem;margin:0 0 6px}.question-card__word{font-size:2.2rem;font-weight:700;margin:0 0 24px;overflow-wrap:anywhere}.question-card__word-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}.question-card__word-row .question-card__word{margin:0}.question-card__options{display:grid;gap:12px}.question-actions{display:grid;gap:10px}.question-actions--single{margin-top:14px;justify-items:center}@media(min-width:560px){.question-card__options,.question-actions{grid-template-columns:1fr 1fr}.question-actions--single{grid-template-columns:minmax(180px,280px)}}.option-btn{border:2px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:18px 16px;font-size:1.15rem;font-weight:600;color:var(--ink);cursor:pointer;min-height:60px;transition:border-color .15s ease,background-color .15s ease;overflow-wrap:anywhere}.option-btn:hover:not(:disabled){border-color:var(--primary);background:var(--primary-soft)}.option-btn:disabled{cursor:default}.option-btn--correct{border-color:var(--success);background:var(--success-soft);color:var(--success)}.option-btn--wrong{border-color:var(--error);background:var(--error-soft);color:var(--error)}.typing-input{width:100%;border:2px solid var(--line);border-radius:var(--radius);padding:16px;font-size:1.3rem;font-family:inherit;margin-bottom:14px}.typing-input:focus{border-color:var(--primary);outline:none}.feedback{margin-top:20px;border-radius:var(--radius);padding:16px;font-size:1.05rem}.feedback--correct{background:var(--success-soft);color:var(--success)}.feedback--wrong{background:var(--error-soft);color:var(--error)}.feedback__example{display:block;margin-top:6px;color:var(--ink-soft);font-style:italic;font-size:.95rem}.error-types{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.error-types .muted{flex-basis:100%;margin:0}.summary{text-align:center;padding:36px 24px}.summary__stars{font-size:3rem;letter-spacing:.1em;margin:10px 0}.summary__star--on{color:var(--accent)}.summary__star--off{color:var(--line)}.summary__numbers{display:flex;justify-content:center;gap:24px;margin:18px 0 28px;font-size:1.1rem}.parent-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.parent-nav__tab{border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);border-radius:999px;padding:10px 18px;font-size:.95rem;font-weight:600;cursor:pointer}.parent-nav__tab--active{background:var(--primary);border-color:var(--primary);color:#fff}.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:24px}.stat-card{padding:16px}.stat-card__value{font-size:1.8rem;font-weight:700;color:var(--primary-dark)}.stat-card__label{font-size:.85rem;color:var(--ink-soft)}.leitner-shelf{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;align-items:end;margin-top:12px}.box-distribution{display:grid;gap:10px;margin-top:16px}.box-row{display:grid;grid-template-columns:minmax(128px,1fr) minmax(120px,2fr) 86px;align-items:center;gap:12px}.box-row__label{display:grid;gap:2px;min-width:0}.box-row__label span,.box-row__value span{color:var(--ink-soft);font-size:.78rem}.box-row__track{height:12px;overflow:hidden;border-radius:999px;background:var(--line)}.box-row__fill{height:100%;min-width:2px;border-radius:inherit;background:var(--primary)}.box-row__value{text-align:right;font-weight:700}.mastery-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.mastery-segment{border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--surface)}.mastery-segment strong,.mastery-segment span,.mastery-segment small{display:block}.mastery-segment strong{font-size:1.45rem;color:var(--primary-dark)}.mastery-segment span{font-weight:700}.mastery-segment small{color:var(--ink-soft)}.mastery-segment--weak{background:var(--error-soft)}.mastery-segment--mid{background:#f3ecdd}.mastery-segment--strong{background:var(--success-soft)}@media(max-width:640px){.page-header{align-items:flex-start;flex-direction:column}.header-actions{justify-content:flex-start;width:100%}.box-row{grid-template-columns:1fr;gap:6px}.box-row__value{text-align:left}.mastery-summary,.learning-grid{grid-template-columns:1fr}}@media print{.parent-nav,.header-actions,.form-actions,.btn{display:none!important}body{background:#fff}.card{box-shadow:none;break-inside:avoid}}.leitner-box{text-align:center}.leitner-box__bar{background:var(--primary-soft);border:1px solid var(--line);border-radius:8px 8px 4px 4px;margin:0 auto 6px;width:100%;min-height:6px;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary-dark)}.leitner-box__label{font-size:.72rem;color:var(--ink-soft)}.week-bars{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;align-items:end;height:110px;margin-top:12px}.week-bar{display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px;height:100%}.week-bar__fill{width:70%;background:var(--primary);border-radius:6px 6px 0 0;min-height:2px}.week-bar__fill--empty{background:var(--line)}.week-bar__label{font-size:.72rem;color:var(--ink-soft)}.form-grid{display:grid;gap:14px}@media(min-width:640px){.form-grid--two{grid-template-columns:1fr 1fr}}.field label{display:block;font-size:.85rem;font-weight:600;color:var(--ink-soft);margin-bottom:4px}.field input,.field select{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:1rem;font-family:inherit;background:var(--surface)}.field input:focus,.field select:focus{border-color:var(--primary);outline:none}.form-actions{display:flex;gap:10px;flex-wrap:wrap}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.92rem}th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft)}.pill{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:600;white-space:nowrap}.pill--weak{background:var(--error-soft);color:var(--error)}.pill--mid{background:#f3ecdd;color:#8a6a1f}.pill--strong{background:var(--success-soft);color:var(--success)}.pill--neutral{background:var(--primary-soft);color:var(--primary-dark)}.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}.filters select{border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-family:inherit;font-size:.92rem;background:var(--surface)}.pin-card{max-width:380px;margin:10vh auto 0;text-align:center;padding:32px 24px}.pin-input{width:100%;text-align:center;letter-spacing:.5em;font-size:1.6rem;border:2px solid var(--line);border-radius:var(--radius);padding:12px;margin:16px 0;font-family:inherit}.pin-input:focus{border-color:var(--primary);outline:none}.pin-error{color:var(--error);font-size:.9rem;margin:0 0 12px}.history-day{margin-bottom:18px}.history-day__head{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;align-items:baseline;margin-bottom:8px}.history-day__meta{color:var(--ink-soft);font-size:.88rem}.muted{color:var(--ink-soft)}.notice{border:1px solid var(--line);border-radius:10px;background:var(--primary-soft);color:var(--primary-dark);font-weight:700;margin:0 0 16px;padding:10px 12px}.biometric-notice{margin:12px 0 0}.app-error{margin-top:12vh;text-align:center}.app-update{position:sticky;top:var(--safe-top);z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);padding:10px 14px}.app-update strong,.app-update span{display:block}.app-update span{color:var(--ink-soft);font-size:.86rem}.app-update__actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.app-update .btn{min-height:40px;padding:8px 12px}.update-status{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.update-status span{font-size:.9rem}.update-status .btn{min-height:40px;padding:8px 12px}@media(max-width:640px){.app-update{align-items:stretch;flex-direction:column}.app-update__actions{justify-content:stretch}.app-update__actions .btn{flex:1}}.section-gap{margin-bottom:24px}.stack{display:grid;gap:16px}