*{box-sizing:border-box}:root{--pink:#f08db8;--yellow:#ffc53d;--blue:#6fa8e0;--blush:#fbe4ed;--text-dark:#3a2f3d;--text-muted:#7a6b7e;--radius-lg:24px;--radius-md:16px;--radius-sm:10px;--shadow-soft:0 10px 30px #f08db82e}html,body,#root{height:100%}body{background:linear-gradient(180deg, var(--blush) 0%, #fff 55%);color:var(--text-dark);-webkit-font-smoothing:antialiased;margin:0;font-family:Nunito,sans-serif}h1,h2,h3{margin:0 0 8px;font-family:"Baloo 2",cursive}p{color:var(--text-muted);line-height:1.55}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:Nunito,sans-serif}input{font-family:Nunito,sans-serif}.app-shell{flex-direction:column;min-height:100%;display:flex}.page-content{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:0 24px 60px}.navbar{z-index:50;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffd9;border-bottom:2px solid #f08db826;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;max-width:1180px;margin:0 auto;padding:14px 24px;display:flex}.logo{align-items:center;gap:8px;font-family:"Baloo 2",cursive;font-size:1.5rem;font-weight:700;display:flex}.logo-badge{font-size:1.6rem}.logo-text{background:linear-gradient(135deg, var(--pink), var(--yellow));color:#0000;-webkit-background-clip:text;background-clip:text}.nav-links{gap:8px;display:flex}.nav-pill{color:var(--text-muted);border-radius:999px;padding:8px 18px;font-weight:700;transition:all .2s}.nav-pill:hover{background:var(--blush);color:var(--text-dark)}.nav-pill.active{background:linear-gradient(135deg, var(--pink), var(--yellow));color:#fff}.btn{border:none;border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:12px 24px;font-size:.95rem;font-weight:800;transition:transform .15s,box-shadow .15s,opacity 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4px;font-size:1.2rem;line-height:1}.hero{text-align:center;border-radius:var(--radius-lg);padding:70px 10px 60px;position:relative;overflow:hidden}.hero-blob{filter:blur(10px);opacity:.5;z-index:0;border-radius:50%;position:absolute}.blob-1{background:var(--yellow);width:220px;height:220px;top:-60px;left:-40px}.blob-2{background:var(--blue);opacity:.35;width:260px;height:260px;bottom:-80px;right:-60px}.blob-3{background:var(--pink);opacity:.3;width:160px;height:160px;top:30px;right:10%}.hero-content{z-index:1;max-width:720px;margin:0 auto;position:relative}.hero-kicker{color:var(--pink);box-shadow:var(--shadow-soft);background:#fff;border-radius:999px;margin-bottom:18px;padding:6px 16px;font-weight:700;display:inline-block}.hero h1{font-size:clamp(2.1rem,5vw,3.2rem);line-height:1.15}.highlight{background:linear-gradient(135deg, var(--pink), var(--yellow));color:#0000;-webkit-background-clip:text;background-clip:text}.hero-sub{max-width:540px;margin:14px auto 28px;font-size:1.1rem}.hero-ctas{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.section-sub{color:var(--text-muted);margin-bottom:20px}.subjects-section,.how-it-works{text-align:center;padding:50px 10px}.subject-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:16px;max-width:900px;margin:0 auto;display:grid}.subject-card{--accent:var(--pink);border-radius:var(--radius-md);background:#fff;border:2px solid #0000;flex-direction:column;align-items:center;gap:8px;padding:22px 12px;transition:transform .2s,border-color .2s;display:flex;box-shadow:0 8px 20px #0000000d}.subject-card:hover{border-color:var(--accent);transform:translateY(-4px)}.subject-emoji{font-size:2rem}.subject-name{font-weight:800}.signin-section{justify-content:center;padding:30px 10px 60px;display:flex}.signin-card{border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-soft);background:#fff;padding:32px}.tab-switch{background:var(--blush);border-radius:999px;margin-bottom:22px;padding:4px;display:flex}.tab-btn{color:var(--text-muted);background:0 0;border:none;border-radius:999px;flex:1;padding:10px;font-weight:800}.tab-btn.active{color:var(--pink);background:#fff;box-shadow:0 4px 10px #00000014}.auth-form{flex-direction:column;gap:16px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}label{color:var(--text-dark);flex-direction:column;gap:6px;font-size:.9rem;font-weight:700;display:flex}input{border-radius:var(--radius-sm);border:2px solid var(--blush);outline:none;padding:12px 14px;font-size:.95rem;transition:border-color .2s}input:focus{border-color:var(--pink)}.form-hint{background:var(--blush);border-radius:var(--radius-sm);margin:0;padding:10px 12px;font-size:.85rem}.success-box{text-align:center;padding:10px 0}.success-emoji{margin-bottom:10px;font-size:2.4rem;display:block}.success-box .btn{margin-top:14px}.steps-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;max-width:900px;margin:20px auto 0;display:grid}.step-card{border-radius:var(--radius-md);background:#fff;padding:26px 20px;box-shadow:0 8px 20px #0000000d}.step-number{background:linear-gradient(135deg, var(--blue), var(--pink));color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;margin-bottom:10px;font-weight:800;display:inline-flex}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin:34px 0 20px;display:flex}.header-actions{flex-wrap:wrap;gap:10px;display:flex}.student-switch{flex-wrap:wrap;gap:10px;margin-bottom:22px;display:flex}.student-pill{--accent:var(--pink);border:2px solid var(--blush);background:#fff;border-radius:999px;align-items:center;gap:8px;padding:6px 16px 6px 6px;font-weight:700;display:flex}.student-pill.active{border-color:var(--accent);background:var(--blush)}.student-avatar{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:.85rem;font-weight:800;display:flex}.stat-cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px;display:grid}.stat-card{border-radius:var(--radius-md);color:#fff;box-shadow:var(--shadow-soft);flex-direction:column;gap:4px;padding:20px;display:flex}.stat-pink{background:linear-gradient(135deg, var(--pink), #f3a3c3)}.stat-blue{background:linear-gradient(135deg, var(--blue), #8dc0ec)}.stat-yellow{background:linear-gradient(135deg, var(--yellow), #ffd666);color:#5a4300}.stat-emoji{font-size:1.5rem}.stat-value{font-family:"Baloo 2",cursive;font-size:1.5rem;font-weight:800}.stat-label{opacity:.9;font-size:.85rem}.dashboard-grid{grid-template-columns:1.2fr 1fr;gap:20px;display:grid}.card{border-radius:var(--radius-lg);background:#fff;padding:24px;box-shadow:0 8px 24px #0000000d}.chart-card{grid-column:span 1}.bar-chart{align-items:flex-end;gap:10px;height:160px;margin-top:16px;display:flex}.bar-col{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:8px;height:100%;display:flex}.bar{background:linear-gradient(180deg, var(--pink), var(--yellow));border-radius:10px 10px 4px 4px;width:100%;min-height:6px}.bar-label{color:var(--text-muted);font-size:.78rem;font-weight:700}.subject-progress-list{flex-direction:column;gap:16px;margin-top:16px;display:flex}.progress-row-top{justify-content:space-between;margin-bottom:6px;font-size:.9rem;font-weight:700;display:flex}.progress-track{background:var(--blush);border-radius:999px;width:100%;height:10px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--blue), var(--pink));border-radius:999px;height:100%}.activity-card{grid-column:span 2}.activity-list{flex-direction:column;gap:14px;margin:16px 0 0;padding:0;list-style:none;display:flex}.activity-list li{align-items:flex-start;gap:10px;display:flex}.activity-list p{color:var(--text-dark);margin:0}.activity-dot{background:var(--pink);border-radius:50%;flex-shrink:0;width:10px;height:10px;margin-top:6px}.activity-when{color:var(--text-muted);font-size:.8rem}.modal-overlay{z-index:100;background:#3a2f3d80;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-card{border-radius:var(--radius-lg);text-align:center;background:#fff;width:100%;max-width:340px;padding:28px;box-shadow:0 20px 50px #0003}.qr-image{border-radius:var(--radius-md);border:4px solid var(--blush);margin:16px 0}.share-link{color:var(--text-muted);word-break:break-all;margin-bottom:16px;font-size:.85rem;display:block}.search-bar-wrap{margin-bottom:16px;position:relative}.search-icon{position:absolute;top:50%;left:18px;transform:translateY(-50%)}.search-bar{border:2px solid var(--blush);border-radius:999px;width:100%;padding:14px 18px 14px 44px;font-size:1rem}.search-bar:focus{border-color:var(--pink);outline:none}.chip-row{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}.chip{border:2px solid var(--blush);color:var(--text-muted);background:#fff;border-radius:999px;padding:8px 16px;font-weight:700}.chip.active{background:linear-gradient(135deg, var(--pink), var(--yellow));color:#fff;border-color:#0000}.detail-layout{grid-template-columns:280px 1fr;gap:20px;display:grid}.topic-list{flex-direction:column;gap:10px;display:flex}.topic-item{--accent:var(--pink);border:2px solid var(--blush);border-radius:var(--radius-md);text-align:left;background:#fff;align-items:center;gap:12px;padding:12px 14px;display:flex}.topic-item.active{border-color:var(--accent);background:var(--blush)}.topic-emoji{font-size:1.4rem}.topic-title{font-weight:800;display:block}.topic-meta{color:var(--text-muted);font-size:.78rem;display:block}.topic-detail{flex-direction:column;gap:20px;display:flex}.badge{color:#fff;border-radius:999px;margin-bottom:10px;padding:4px 12px;font-size:.75rem;font-weight:800;display:inline-block}.explanation{background:var(--blush);border-radius:var(--radius-md);color:var(--text-dark);padding:14px 16px;font-size:1rem}.practice-block{border-top:2px dashed var(--blush);margin-top:16px;padding-top:16px}.practice-q{color:var(--text-dark);margin-bottom:10px;font-weight:700}.choice-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;display:grid}.choice-btn{border:2px solid var(--blush);border-radius:var(--radius-sm);background:#fff;padding:10px;font-weight:700}.choice-btn.correct{background:#d9f5d6;border-color:#6fc062}.choice-btn.incorrect{background:#fbdada;border-color:#e58787}.feedback{margin-top:10px;font-weight:700}.feedback.good{color:#3d8c35}.feedback.bad{color:#c24848}.chat-card-sm{flex-direction:column;display:flex}.chat-log{flex-direction:column;gap:10px;min-height:100px;max-height:260px;margin:14px 0;display:flex;overflow-y:auto}.chat-bubble{border-radius:var(--radius-md);max-width:85%;padding:10px 14px;font-size:.92rem}.chat-bubble.student{background:linear-gradient(135deg, var(--blue), #8dc0ec);color:#fff;align-self:flex-end}.chat-bubble.tutor{background:var(--blush);color:var(--text-dark);align-self:flex-start}.chat-form{gap:8px;display:flex}.chat-form input{flex:1}.empty-state{color:var(--text-muted);font-size:.9rem}.settings-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;display:grid}.settings-form{flex-direction:column;gap:14px;margin-top:10px;display:flex}.color-swatches{gap:10px;display:flex}.swatch{border:3px solid #0000;border-radius:50%;width:36px;height:36px}.swatch.active{border-color:var(--text-dark)}.toggle-row{border-bottom:2px solid var(--blush);justify-content:space-between;align-items:center;padding:14px 0;display:flex}.toggle-row:last-of-type{border-bottom:none}.toggle-title{color:var(--text-dark);margin:0;font-weight:800}.toggle-sub{margin:0;font-size:.82rem}.switch{background:var(--blush);border:none;border-radius:999px;flex-shrink:0;width:50px;height:28px;padding:0;position:relative}.switch.on{background:linear-gradient(135deg, var(--pink), var(--yellow))}.switch-knob{background:#fff;border-radius:50%;width:22px;height:22px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 2px 4px #0003}.switch.on .switch-knob{transform:translate(22px)}.slot-grid{grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:8px;margin-bottom:8px;display:grid}.pricing-box{text-align:center}.price{color:var(--pink);margin:6px 0 14px;font-family:"Baloo 2",cursive;font-size:2rem;font-weight:800}.pricing-list{text-align:left;color:var(--text-dark);flex-direction:column;gap:8px;margin:0 0 18px;padding:0;list-style:none;display:flex}.footer{text-align:center;color:var(--text-muted);padding:24px;font-size:.85rem}@media (width<=860px){.dashboard-grid{grid-template-columns:1fr}.activity-card{grid-column:span 1}.detail-layout,.form-row{grid-template-columns:1fr}.nav-links{gap:4px}.nav-pill{padding:8px 12px;font-size:.85rem}}