:root{--font-main: "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Quicksand", "Nunito", sans-serif;--primary-blue: #3b82f6;--primary-blue-hover: #2563eb;--primary-blue-light: #eff6ff;--accent-amber: #f59e0b;--accent-amber-light: #fef3c7;--accent-emerald: #10b981;--accent-emerald-light: #ecfdf5;--accent-rose: #f43f5e;--accent-rose-light: #fff1f2;--accent-purple: #8b5cf6;--accent-purple-light: #f5f3ff;--bg-app: #f8fafc;--surface-card: #ffffff;--surface-card-alt: #f1f5f9;--text-main: #1e293b;--text-muted: #64748b;--text-subtle: #94a3b8;--border-subtle: #e2e8f0;--border-strong: #cbd5e1;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--radius-xl: 32px;--radius-full: 9999px;--shadow-sm: 0 2px 4px rgba(15, 23, 42, .04), 0 1px 2px rgba(15, 23, 42, .06);--shadow-card: 0 4px 12px -2px rgba(15, 23, 42, .08), 0 2px 6px -1px rgba(15, 23, 42, .04);--shadow-pop: 0 10px 25px -5px rgba(59, 130, 246, .2), 0 8px 10px -6px rgba(59, 130, 246, .1);--shadow-btn-3d: 0 4px 0 #1d4ed8}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-main);background-color:var(--bg-app);color:var(--text-main);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;color:var(--text-main);line-height:1.3}.app-container{max-width:1080px;margin:0 auto;padding:24px 16px}.btn-kid{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-heading);font-size:1.05rem;font-weight:700;padding:12px 24px;border-radius:var(--radius-lg);border:none;cursor:pointer;transition:all .15s ease-in-out;text-decoration:none;-webkit-user-select:none;user-select:none}.btn-kid-primary{background-color:var(--primary-blue);color:#fff;box-shadow:0 4px #1d4ed8,0 8px 12px #2563eb40}.btn-kid-primary:hover{background-color:var(--primary-blue-hover);transform:translateY(-2px);box-shadow:0 6px #1d4ed8,0 10px 16px #2563eb4d}.btn-kid-primary:active{transform:translateY(2px);box-shadow:0 2px #1d4ed8}.btn-kid-success{background-color:var(--accent-emerald);color:#fff;box-shadow:0 4px #047857,0 8px 12px #10b98140}.btn-kid-success:hover{transform:translateY(-2px);box-shadow:0 6px #047857,0 10px 16px #10b9814d}.btn-kid-success:active{transform:translateY(2px);box-shadow:0 2px #047857}.card-kid{background:var(--surface-card);border-radius:var(--radius-lg);padding:24px;border:2px solid var(--border-subtle);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease}.card-kid:hover{transform:translateY(-3px);box-shadow:var(--shadow-pop);border-color:#bfdbfe}.badge-kid{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-heading);font-weight:700;font-size:.875rem;padding:6px 14px;border-radius:var(--radius-full)}.badge-kid-blue{background:var(--primary-blue-light);color:var(--primary-blue)}.badge-kid-amber{background:var(--accent-amber-light);color:#b45309}.badge-kid-green{background:var(--accent-emerald-light);color:#065f46}