:root{--white:#fff;--ink:#333;--main:#5b36d6;--pale:#eee9ff;--line:#d8d4e3;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--white);color:var(--ink);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN",sans-serif;font-size:16px;line-height:1.65}button,input{font:inherit}button{color:inherit}.skip-link{position:fixed;top:8px;left:8px;z-index:60;padding:10px 16px;background:var(--ink);color:#fff;transform:translateY(-200%)}.skip-link:focus{transform:none}
.site-header{max-width:var(--max);min-height:84px;margin:auto;padding:16px 28px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:12px;line-height:1.25;text-decoration:none;letter-spacing:.03em}.brand b{font-size:14px}.brand-mark{width:36px;height:36px;display:grid;place-items:center;background:var(--main);color:#fff;font-size:20px;font-weight:700}.site-header nav{display:flex;gap:24px;align-items:center}.site-header nav a,.text-button{color:var(--ink);font-size:14px;font-weight:700;text-decoration:none;background:none;border:0;cursor:pointer}.site-header nav a:hover,.text-button:hover{color:var(--main)}#favoriteCount{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;background:var(--pale);color:var(--main);font-size:12px}
.sns-dropdown{position:relative}.sns-trigger{min-height:44px;padding:0;border:0;background:none;color:var(--ink);font-size:14px;font-weight:700;cursor:pointer}.sns-trigger:hover,.sns-dropdown:focus-within .sns-trigger{color:var(--main)}.sns-links{position:absolute;top:calc(100% + 8px);right:0;z-index:30;display:grid;grid-template-columns:repeat(2,minmax(110px,1fr));gap:4px;width:248px;padding:12px;background:#fff;border:1px solid var(--line);opacity:0;pointer-events:none;transform:translateY(-6px);transition:.15s}.sns-dropdown:hover .sns-links,.sns-dropdown:focus-within .sns-links{opacity:1;pointer-events:auto;transform:none}.sns-links a{min-height:36px!important;padding:7px 8px!important;font-size:13px!important}.mobile-menu-toggle,.mobile-menu{display:none}.mobile-menu.is-open{display:block!important}
.hero{max-width:var(--max);padding:92px 28px 80px;margin:auto;text-align:center;border-bottom:1px solid var(--line)}.eyebrow{margin:0 0 10px;color:var(--main);font-size:12px;font-weight:700;letter-spacing:.12em}.hero h1{max-width:760px;margin:0 auto 16px;font-size:clamp(40px,7vw,64px);line-height:1.18;letter-spacing:-.045em}.hero h1 span{color:var(--main)}.hero-copy{margin:0 auto 28px;font-size:18px}.button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;gap:12px;padding:10px 24px;font-size:16px;font-weight:700;text-decoration:none;border:2px solid var(--main)}.button-primary{background:var(--main);color:#fff}.button-primary:hover{background:var(--ink);border-color:var(--ink)}.hero-note{margin:16px 0 0;font-size:13px}.hero-note b{color:var(--main);font-size:18px}
.quick-builder,.how-to,.dictionary,.favorites{max-width:var(--max);margin:auto;padding:80px 28px;border-bottom:1px solid var(--line)}.section-heading{text-align:center}.section-heading.compact{margin-bottom:28px}.section-heading h2{margin:0;font-size:clamp(28px,4vw,40px);letter-spacing:-.03em}.section-heading.left{text-align:left}.builder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.builder{min-height:170px;padding:20px;background:var(--pale);border:1px solid transparent;text-align:left;cursor:pointer}.builder:hover{background:#fff;border-color:var(--main)}.builder strong{display:block;margin-bottom:8px;font-size:18px}.builder small{display:block;margin-bottom:18px;font-size:13px}.builder span{color:var(--main);font-size:13px;font-weight:700}.mini-layout{height:40px;display:flex;gap:4px;align-items:stretch}.mini-layout i{display:block;background:var(--main);opacity:.85}.mini-layout.split i:first-child{width:42%}.mini-layout.split i:last-child,.mini-layout.grid i{flex:1;opacity:.25}.mini-layout.top{flex-direction:column}.mini-layout.top i:first-child{height:45%}.mini-layout.top i:last-child{flex:1;opacity:.25}.mini-layout.grid i:nth-child(2){opacity:.8}.mini-layout.diagonal{background:linear-gradient(145deg,var(--main) 0 48%,#fff 49% 51%,var(--pale) 52%)}
.steps{max-width:900px;margin:36px auto;display:grid;grid-template-columns:repeat(3,1fr);padding:0;list-style:none}.steps li{padding:0 28px;border-left:1px solid var(--line)}.steps li:first-child{border:0}.steps span{display:block;color:var(--main);font-weight:700;font-size:14px}.steps b{display:block;margin-top:8px;font-size:20px}.steps small{font-size:14px}.formula{max-width:820px;margin:auto;padding:20px;display:flex;justify-content:center;align-items:center;gap:12px;background:var(--pale);flex-wrap:wrap}.formula b{font-size:14px}.formula span{padding:5px 10px;background:#fff;font-size:14px;font-weight:700}.formula i{font-style:normal;color:var(--main);font-weight:700}
.dictionary-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.result-count{margin:0;font-size:14px}.search-wrap{position:relative;max-width:700px;margin-bottom:16px}.search-wrap input{width:100%;height:52px;padding:0 48px 0 16px;border:1px solid var(--ink);background:#fff;outline:0}.search-wrap input:focus{outline:3px solid var(--pale);border-color:var(--main)}.search-wrap span{position:absolute;right:16px;top:11px;font-size:28px;color:var(--main)}.filters{display:flex;gap:8px;overflow:auto;padding-bottom:8px}.filter{min-height:44px;padding:7px 14px;background:#fff;border:1px solid var(--line);white-space:nowrap;cursor:pointer;font-size:14px;font-weight:700}.filter:hover,.filter.active{background:var(--main);border-color:var(--main);color:#fff}.prompt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}.prompt-card{position:relative;display:flex;flex-direction:column;min-height:270px;padding:22px;border:1px solid var(--line);background:#fff}.prompt-card:hover{border-color:var(--main)}.card-category{margin:0 0 10px;color:var(--main);font-size:12px;font-weight:700;letter-spacing:.08em}.prompt-card h3{margin:0 32px 8px 0;font-size:20px;line-height:1.4}.card-summary{margin:0;font-size:14px}.card-actions{display:flex;gap:8px;margin-top:auto;padding-top:20px}.copy-button,.detail-button,.save-button{min-height:44px;padding:8px 12px;background:#fff;border:1px solid var(--ink);font-size:13px;font-weight:700;cursor:pointer}.copy-button{background:var(--ink);color:#fff}.copy-button:hover{background:var(--main);border-color:var(--main)}.detail-button:hover,.save-button:hover{color:var(--main);border-color:var(--main)}.save-button{position:absolute;right:16px;top:16px;width:36px;padding:0;font-size:20px;border:0}.save-button.saved{color:var(--main)}.empty{padding:36px 0;text-align:center}
.favorites{min-height:240px}.favorite-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.favorite-item{display:flex;gap:16px;align-items:center;padding:16px;background:var(--pale)}.favorite-item p{margin:0;flex:1;font-size:14px}.favorite-item b{display:block;font-size:16px}.favorite-item button{flex:0 0 auto;min-height:44px;padding:8px 12px;border:1px solid var(--main);background:#fff;color:var(--main);font-weight:700;cursor:pointer}footer{max-width:var(--max);margin:auto;padding:32px 28px;font-size:12px}footer p{margin:0 0 6px}footer a{color:var(--main)}
dialog{width:min(720px,calc(100% - 32px));max-height:85vh;padding:32px;border:1px solid var(--ink);color:var(--ink);overflow-y:auto}dialog::backdrop{background:rgba(51,51,51,.55)}.dialog-close{position:absolute;right:12px;top:12px;width:44px;height:44px;border:0;background:#fff;font-size:28px;cursor:pointer}.dialog-category{margin:0 0 8px;color:var(--main);font-size:12px;font-weight:700;letter-spacing:.08em}.dialog-title{margin:0 42px 12px 0;font-size:32px;line-height:1.3}.dialog-desc{margin:0 0 24px}.prompt-label{margin:0 0 8px;font-size:13px;font-weight:700}.prompt-text{margin:0;padding:18px;background:var(--pale);white-space:pre-wrap;font-size:15px;line-height:1.8}.dialog-actions{display:flex;gap:10px;margin-top:20px}.toast{position:fixed;bottom:20px;left:50%;z-index:10;padding:12px 18px;background:var(--ink);color:#fff;font-size:14px;font-weight:700;transform:translate(-50%,120px);transition:transform .2s}.toast.show{transform:translate(-50%,0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:800px){.site-header{padding:14px 20px}.desktop-nav{display:none!important}.mobile-menu-toggle{position:fixed;right:20px;bottom:20px;z-index:50;display:grid;place-content:center;gap:5px;width:56px;height:56px;padding:0;border:0;border-radius:50%;background:var(--main);cursor:pointer}.mobile-menu-toggle span[aria-hidden]{display:block;width:24px;height:2px;background:#fff;transition:.15s}.mobile-menu-open .mobile-menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}.mobile-menu-open .mobile-menu-toggle span:nth-child(2){opacity:0}.mobile-menu-open .mobile-menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.mobile-menu{position:fixed;right:20px;bottom:88px;z-index:49;width:min(340px,calc(100vw - 40px));padding:20px;background:#fff;border:1px solid var(--ink)}.mobile-menu nav{display:grid;gap:2px;padding-bottom:16px;border-bottom:1px solid var(--line)}.mobile-menu nav a{min-height:44px;padding:10px 0;color:var(--ink);font-weight:700;text-decoration:none}.mobile-sns p{margin:16px 0 10px;color:var(--main);font-size:13px;font-weight:700}.mobile-sns-links{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.mobile-sns-links a{min-height:40px;display:grid;place-items:center;padding:6px;border:1px solid var(--line);color:var(--ink);font-size:12px;font-weight:700;text-decoration:none}.mobile-sns-links a:hover,.mobile-sns-links a:focus{border-color:var(--main);color:var(--main)}.builder-grid,.prompt-grid{grid-template-columns:repeat(2,1fr)}.quick-builder,.how-to,.dictionary,.favorites{padding:56px 20px}.hero{padding:64px 20px}.steps{gap:20px}.steps li{padding:0 14px}.prompt-card{min-height:250px}}
@media(max-width:520px){.hero h1{font-size:40px}.hero-copy{font-size:16px}.builder-grid,.prompt-grid,.favorite-list,.steps{grid-template-columns:1fr}.steps li,.steps li:first-child{padding:0 0 20px;border:0;border-bottom:1px solid var(--line)}.steps li:last-child{border:0;padding-bottom:0}.dictionary-head{align-items:start;flex-direction:column}.formula{justify-content:flex-start}.prompt-card{min-height:0}.site-header{min-height:70px}.brand{font-size:10px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important}}