.layout-container{display:grid;grid-template-columns:1fr;gap:1.5rem}.left-column{width:100%}@media(min-width:1024px){.layout-container{grid-template-columns:1fr 320px;gap:1.5rem}}.levels-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.level-card{position:relative;display:block;text-decoration:none;overflow:hidden;border-radius:1.5rem;background:linear-gradient(145deg,#fffffffa,#dbeafef2);border:1.5px solid rgba(66,172,237,.15);transition:all .5s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 20px #42aced14,0 2px 8px #2b8ecf0a,0 1px 3px #00000005,0 0 0 1px #fffc inset;backdrop-filter:blur(10px)}.level-card:before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,transparent 0%,#42ACED 15%,#2B8ECF 50%,#42ACED 85%,transparent 100%);opacity:0;transition:opacity .5s ease;box-shadow:0 2px 8px #42aced66}.level-card:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at top right,rgba(66,172,237,.03) 0%,transparent 50%),radial-gradient(circle at bottom left,rgba(43,142,207,.03) 0%,transparent 50%);opacity:0;transition:opacity .5s ease;pointer-events:none}.level-card:hover:before{opacity:1}.level-card:hover:after{opacity:1}.level-card:hover{transform:translateY(-8px) scale(1.01);border-color:#42aced59;box-shadow:0 24px 48px #42aced26,0 12px 24px #2b8ecf1a,0 4px 8px #1b619914,0 0 0 1.5px #42aced1a inset,0 0 0 3px #ffffffe6 inset}.card-glow{position:absolute;inset:0;background:linear-gradient(145deg,#42aced14,#2b8ecf1f);opacity:0;transition:opacity .4s ease;pointer-events:none}.level-card:hover .card-glow{opacity:1}.card-content{position:relative;padding:2.25rem 2rem}.level-badge{display:inline-block;margin-bottom:.75rem}.badge-inner{position:relative;padding:.75rem 1.75rem;background:linear-gradient(135deg,#42aced,#2b8ecf 50% 100%);border-radius:2rem;box-shadow:0 6px 16px #42aced4d,0 2px 8px #2b8ecf33,0 0 0 2px #ffffff26 inset,0 2px 4px #ffffff4d inset;transition:all .4s cubic-bezier(.34,1.56,.64,1);overflow:hidden}.badge-inner:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.2) 50%,transparent 70%);transform:rotate(45deg);transition:all .6s ease}.level-card:hover .badge-inner:before{left:100%}.level-card:hover .badge-inner{background:linear-gradient(135deg,#2b8ecf 0% 50%,#1b6199);box-shadow:0 8px 24px #42aced66,0 4px 12px #2b8ecf4d,0 0 0 2px #ffffff40 inset,0 2px 6px #fff6 inset;transform:scale(1.08) translateY(-2px)}.badge-text{position:relative;font-size:1.5rem;font-weight:800;color:#fff;letter-spacing:.03em;text-shadow:0 2px 4px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);z-index:1}.level-subtitle{font-size:.9375rem;color:#6b7280;font-weight:600;margin-bottom:1rem;line-height:1.5;letter-spacing:.01em;padding-left:.25rem}.divider{height:2px;background:linear-gradient(90deg,transparent 0%,rgba(66,172,237,.15) 10%,rgba(66,172,237,.3) 50%,rgba(66,172,237,.15) 90%,transparent 100%);margin:1.5rem 0;border-radius:2px;box-shadow:0 1px 2px #42aced1a}.level-info{margin-bottom:1.25rem}.info-row{display:flex;align-items:center;gap:.875rem;padding:1.125rem 1.25rem;background:linear-gradient(135deg,#dbeafe80,#ffffffb3);border-radius:1.25rem;border:1.5px solid rgba(66,172,237,.15);transition:all .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 2px 8px #42aced0a,0 0 0 1px #ffffff80 inset}.level-card:hover .info-row{background:linear-gradient(135deg,#bfdbfeb3,#ffffffd9);border-color:#42aced59;box-shadow:0 4px 12px #42aced1f,0 0 0 1px #42aced1a inset,0 0 0 2px #ffffffb3 inset;transform:translate(4px)}.info-icon{width:1.5rem;height:1.5rem;color:#2b8ecf;flex-shrink:0;transition:all .4s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 2px 4px rgba(66,172,237,.2))}.level-card:hover .info-icon{transform:scale(1.15) rotate(-5deg);color:#2b8ecf}.info-label{font-size:.875rem;color:#6b7280;font-weight:500}.info-value{margin-left:auto;font-size:1.25rem;font-weight:800;color:#111827;transition:all .4s cubic-bezier(.34,1.56,.64,1);letter-spacing:.01em}.level-card:hover .info-value{color:#2b8ecf;transform:scale(1.05);text-shadow:0 2px 4px rgba(66,172,237,.2)}.kanji-preview{margin-bottom:1rem}.preview-label{font-size:.75rem;color:#9ca3af;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.75rem;padding-left:.25rem;position:relative;display:inline-block}.preview-label:before{content:"";position:absolute;left:0;bottom:-2px;width:2rem;height:2px;background:linear-gradient(90deg,#42ACED 0%,transparent 100%);border-radius:2px}.preview-grid{display:flex;flex-wrap:wrap;gap:.625rem;padding:1.25rem;background:linear-gradient(135deg,#dbeafe66,#ffffffd9);border-radius:1.25rem;border:1.5px solid rgba(66,172,237,.12);min-height:5.5rem;transition:all .4s ease;box-shadow:0 2px 8px #42aced0a,0 0 0 1px #ffffff80 inset}.level-card:hover .preview-grid{background:linear-gradient(135deg,#bfdbfe80,#fffffff2);border-color:#42aced4d;box-shadow:0 4px 12px #42aced14,0 0 0 1px #42aced1a inset,0 0 0 2px #ffffffb3 inset}.preview-char{font-size:1.25rem;color:#374151;font-family:Noto Sans JP,sans-serif;font-weight:600;transition:all .3s cubic-bezier(.34,1.56,.64,1);cursor:default;padding:.25rem .375rem;border-radius:.5rem;background:transparent}.preview-char:hover{color:#2b8ecf;transform:scale(1.2) translateY(-2px);background:#bfdbfe99;box-shadow:0 4px 8px #42aced26}.preview-more{display:flex;align-items:center;justify-content:center;font-size:.875rem;color:#9ca3af;font-weight:600;padding:0 .375rem}.card-arrow{position:absolute;bottom:1.75rem;right:1.75rem;width:2.25rem;height:2.25rem;padding:.5rem;color:#2b8ecf;opacity:0;transform:translate(-1rem) rotate(-45deg);transition:all .5s cubic-bezier(.34,1.56,.64,1);background:#bfdbfe80;border-radius:50%;border:1.5px solid rgba(66,172,237,.2);box-shadow:0 2px 8px #42aced26}.level-card:hover .card-arrow{opacity:1;transform:translate(0) rotate(0);background:#bfdbfecc;border-color:#42aced66;box-shadow:0 4px 12px #42aced40}.card-arrow svg{width:100%;height:100%}@media(max-width:768px){.levels-grid{grid-template-columns:1fr;gap:1.25rem}.card-content{padding:1.5rem 1.25rem}.badge-text{font-size:1.25rem}.preview-grid{min-height:4rem}.card-arrow{bottom:1.25rem;right:1.25rem}}@media(max-width:480px){.levels-grid{grid-template-columns:1fr}}