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#f0fdf4}.right-column::-webkit-scrollbar{width:8px}.right-column::-webkit-scrollbar-track{background:#f0fdf4;border-radius:4px}.right-column::-webkit-scrollbar-thumb{background:#86efac;border-radius:4px}.right-column::-webkit-scrollbar-thumb:hover{background:#4ade80}@media(max-width:1024px){.content-container{grid-template-columns:1fr;gap:var(--spacing-lg)}.left-column{order:1}.right-column{order:2}}@media(max-width:768px){.home-page{padding:var(--spacing-md)}.page-header{margin-bottom:var(--spacing-xl);padding:var(--spacing-lg) 0}.page-header h1{font-size:32px}.page-header p{font-size:16px}.content-container{gap:var(--spacing-md)}}.feature-tag{padding:10px 18px;border-radius:var(--radius-full);font-size:14px;font-weight:700;color:#fff;box-shadow:var(--shadow-md);white-space:nowrap;display:flex;align-items:center;gap:8px;transition:all var(--transition-base);cursor:default;position:relative;overflow:hidden}.feature-tag:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left var(--transition-slow)}.feature-tag:hover:before{left:100%}.feature-tag:hover{transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-lg)}.feature-icon{font-size:18px;line-height:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.2))}.feature-tag-math{background:linear-gradient(135deg,#6366f1,#8b5cf6);border:2px solid rgba(255,255,255,.3)}.feature-tag-math:hover{background:linear-gradient(135deg,#4f46e5,#7c3aed)}.feature-tag-test{background:linear-gradient(135deg,#10b981,#059669);border:2px solid rgba(255,255,255,.3)}.feature-tag-test:hover{background:linear-gradient(135deg,#059669,#047857)}.feature-tag-video{background:linear-gradient(135deg,#ec4899,#db2777);border:2px solid rgba(255,255,255,.3)}.feature-tag-video:hover{background:linear-gradient(135deg,#db2777,#be185d)}.results-placeholder-card{background:linear-gradient(135deg,#f0fdf4,#d1fae5);border-radius:var(--radius-lg);padding:var(--spacing-2xl);box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center;min-height:400px;border:2px solid #bbf7d0;transition:all var(--transition-base);position:relative;overflow:hidden}.results-placeholder-card:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(34,197,94,.05) 0%,transparent 70%);animation:pulseGreen 4s ease-in-out infinite}@keyframes pulseGreen{0%,to{transform:scale(1);opacity:.3}50%{transform:scale(1.1);opacity:.5}}.results-placeholder-card:hover{border-color:#86efac;box-shadow:var(--shadow-xl);transform:translateY(-2px)}.results-placeholder-content{text-align:center;max-width:400px;position:relative;z-index:1}.results-placeholder-icon{font-size:64px;margin-bottom:var(--spacing-lg);opacity:.8;filter:drop-shadow(0 4px 6px rgba(0,0,0,.1))}.results-placeholder-content h3{margin:0 0 var(--spacing-md) 0;font-size:24px;font-weight:700;color:#166534;letter-spacing:-.01em}.results-placeholder-content p{margin:0;font-size:16px;color:#15803d;line-height:1.6}.error-card{background:var(--color-bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-lg);text-align:center;border-left:4px solid var(--color-error)}.error-card h3{margin:0 0 var(--spacing-md) 0;font-size:20px;font-weight:600;color:var(--color-error)}.error-card p{margin:0 0 var(--spacing-lg) 0;font-size:15px;color:var(--color-text-secondary)}.retry-button{padding:12px 24px;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-md);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-md)}.retry-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg)}.retry-button:active:not(:disabled){transform:translateY(0)}.retry-button:disabled{opacity:.6;cursor:not-allowed}#root{width:100%;min-height:100vh}