:root{font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#13141f;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(145deg,#13141f,#1a1b2e);font-family:Noto Sans JP,sans-serif}h1{font-size:3.2em;line-height:1.1;background:linear-gradient(to right,#646cff,#747bff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}body{background:linear-gradient(145deg,#f5f5f5,#fff)}.create-bookmark form{background-color:#fffc;box-shadow:0 8px 32px #0000000d}input{background-color:#fff;border-color:#0000001a}.bookmark-card{background-color:#fff}}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.markit-title{font-size:4rem;font-weight:800;background:linear-gradient(45deg,#06c,#ff8533,#0c9,#06c);background-size:300% 300%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:gradient-shift 8s ease infinite;letter-spacing:-.05em;text-shadow:2px 2px 4px rgba(0,0,0,.1);transform:scale(1);transition:transform .3s ease;cursor:pointer}.markit-title:hover{transform:scale(1.05)}@keyframes gradient-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.main-container{display:flex;flex-direction:column;align-items:center;gap:3rem;padding:0 1rem}.header-btns{display:flex;gap:30px}.link-btn{background:transparent;border:2px solid #0066cc;color:#06c;padding:.5rem 1rem;border-radius:8px;font-weight:600;transition:all .2s ease;cursor:pointer;text-transform:uppercase;letter-spacing:.05em;font-size:.9rem}.link-btn:hover{background-color:#06c;color:#fff}.create-bookmark{width:100%;max-width:500px;color:#000;opacity:.9}.create-bookmark form{display:flex;flex-direction:column;align-items:stretch;padding:2rem;border-radius:16px;gap:1.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 8px 32px #0003}input{width:90%;font-size:16px;border-radius:8px;padding:.75rem 1rem;color:#000;border:2px solid rgba(255,255,255,.2);background-color:#ffffffe6;transition:all .2s ease}input:focus{outline:none;border-color:#4d9de0;box-shadow:0 0 0 2px #4d9de04d}.create-bookmark h3{font-size:1.5rem;font-weight:700;margin:0;color:inherit;font-family:Noto Sans JP,sans-serif}.bookmark-input-container{display:flex;flex-direction:column;align-items:start;gap:.75rem;width:100%}.bookmark-input-container label{font-size:.95rem;font-weight:500;opacity:.9}button{padding:.75rem 1.5rem;border-radius:8px;border:none;background-color:#2d7dd2;color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:Noto Sans JP,sans-serif;font-size:1.2rem}button:hover{background-color:#1b5aa1;transform:translateY(-1px);box-shadow:0 2px 4px #0003}.bookmark-list{display:flex;flex-wrap:wrap;gap:2rem;width:100%;padding:1rem}.bookmark-card{position:relative;border-radius:16px;padding:1.5rem;color:#1a1a1a;display:flex;flex-direction:column;gap:.5rem;transition:all .2s ease;text-align:left;box-shadow:0 4px 6px #0000001a;flex:1 1 300px;max-width:calc(33.333% - 1.34rem);min-width:280px;height:fit-content}.bookmark-card p{margin:0;width:100%;white-space:normal;word-wrap:break-word}.bookmark-card:hover{transform:translateY(-4px);box-shadow:0 8px 12px #00000026}.bookmark-card h3{font-size:2.4rem;margin:10px 0 0;font-weight:600;overflow-wrap:break-word;-webkit-hyphens:auto;hyphens:auto;word-break:break-word;max-width:100%}.bookmark-card p{margin:0;opacity:.7;flex-grow:1}.bookmark-card .actions{position:absolute;top:1rem;right:1rem;display:flex;gap:.5rem}.bookmark-card .actions button{padding:.5rem;border-radius:8px;background-color:#0000001a;color:#1a1a1a}.bookmark-card .actions button:hover{background-color:#0003}.bookmark-input-container.edit-mode{width:100%;display:flex;flex-direction:column;gap:1rem}.bookmark-input-container.edit-mode input{width:100%;box-sizing:border-box;margin:0;font-size:1rem;background-color:#ffffffe6;color:#1a1a1a}.edit-actions{display:flex;gap:.5rem;margin-top:.5rem}.edit-actions button{flex:1;padding:.5rem;font-size:.9rem}@media (max-width: 1200px){.bookmark-card{max-width:calc(50% - 1rem)}}@media (max-width: 768px){.bookmark-card{max-width:100%}.bookmark-list{padding:0}}