:root{--bg:#f8f5ef;--surface:#fffaf2;--text:#2c231b;--accent:#8b3f2f;--accent-strong:#6e2f22;--line:#dbc7af;--ok:#1f6d4b;--danger:#8f2d2d}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;background:radial-gradient(circle at top right,#f4e9d8 0,var(--bg) 45%);color:var(--text)}a{color:inherit}main{min-height:100dvh;padding:48px 20px 64px}.container{max-width:920px;margin:0 auto}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 8px 30px rgba(44,35,27,.08)}h1{font-size:clamp(28px,4vw,48px);line-height:1.2}h1,h2{margin:0 0 12px}p{line-height:1.7;margin:0}.hero-grid{display:grid;grid-gap:24px;gap:24px;grid-template-columns:1.2fr 1fr;margin-top:28px}.badge{display:inline-block;font-size:12px;letter-spacing:.08em;background:#f1e1cb;color:#5d3027;border-radius:999px;padding:6px 10px;margin-bottom:10px}.list{display:grid;grid-gap:10px;gap:10px;margin-top:16px}.list-item{background:#fff;border:1px dashed var(--line);border-radius:10px;padding:12px;font-size:14px}.form{display:grid;grid-gap:12px;gap:12px;margin-top:16px}button,input,select{font:inherit}input,select{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fff}.button{border:0;border-radius:10px;padding:12px 14px;background:var(--accent);color:#fff;cursor:pointer;transition:transform .1s ease,background .2s ease}.button:hover{background:var(--accent-strong)}.button:disabled{opacity:.6;cursor:not-allowed}.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.status-ok{color:var(--ok);font-size:14px}.status-error{color:var(--danger);font-size:14px}.price{font-size:28px;margin:8px 0 2px}.inline-button{display:inline-block;text-decoration:none}.small{font-size:13px;color:#6b5a4f}.field{display:grid;grid-gap:6px;gap:6px}.check-toggle,.field span{font-size:14px}.check-toggle{display:flex;gap:10px;align-items:center}.check-toggle input{width:16px;height:16px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-20{margin-top:20px}.calc-grid{display:grid;grid-gap:24px;gap:24px;grid-template-columns:1.2fr 1fr;margin-top:28px}.calc-full{grid-column:1/-1}.result-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.result-main{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.1}.ad-slot{border:1px dashed var(--line);background:hsla(0,0%,100%,.55);border-radius:12px;padding:12px;text-align:center;color:#7c6858;font-size:13px}.ad-slot-live{min-height:80px}.seo-links{display:grid;grid-gap:10px;gap:10px}.seo-links a{text-decoration:none;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff}.tool-tabs{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(4,minmax(0,1fr))}.tool-tab{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;color:var(--text);cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease}.tool-tab-active,.tool-tab:hover{border-color:var(--accent)}.tool-tab-active{background:var(--accent);color:#fff}.checklist-item{display:grid;grid-template-columns:20px 1fr;grid-gap:10px;gap:10px;align-items:center}.checklist-item input{width:16px;height:16px}.kpi-grid{display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer{border-top:1px solid var(--line);background:rgba(255,250,242,.9);padding:18px 20px 28px}.footer-inner{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}.footer-inner a{text-decoration:none;color:#6b5a4f}.report-box{white-space:pre-wrap;word-break:break-word;border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px;font-size:12px;line-height:1.6}.snake-card{overflow:hidden}.snake-meta{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(3,minmax(0,1fr))}.snake-board-shell{border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px;touch-action:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.snake-board{display:grid;grid-gap:2px;gap:2px;max-width:520px;aspect-ratio:1/1;margin:0 auto}.snake-cell{background:#f2e5d4;border-radius:2px;aspect-ratio:1/1}.snake-cell-snake{background:#6c8a5f}.snake-cell-head{background:#45613c}.snake-cell-food{background:#b13f2e}.snake-cell-special{background:#6a4bb0}.snake-energy{display:grid;grid-gap:10px;gap:10px;grid-template-columns:repeat(3,minmax(0,1fr));align-items:center}.snake-primary-controls{display:flex;gap:10px;flex-wrap:wrap}.snake-gameover{border:1px solid var(--line);border-radius:12px;background:#fff;padding:12px}.snake-gameover h3{margin:0}.snake-install{border:1px dashed var(--line);border-radius:12px;background:hsla(0,0%,100%,.75);padding:12px}.snake-mobile-controls{display:none}.snake-dpad{display:grid;grid-template-columns:repeat(3,56px);grid-template-rows:repeat(3,56px);grid-gap:8px;gap:8px;justify-content:center}.snake-dir-button{display:flex;align-items:center;justify-content:center;font-size:22px;line-height:1;padding:0}.snake-dir-up{grid-column:2;grid-row:1}.snake-dir-left{grid-column:1;grid-row:2}.snake-dir-down{grid-column:2;grid-row:2}.snake-dir-right{grid-column:3;grid-row:2}@media (max-width:820px){.calc-grid,.hero-grid,.kpi-grid{grid-template-columns:1fr}.tool-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.snake-energy,.snake-meta{grid-template-columns:1fr}.snake-board{max-width:min(92vw,420px)}.snake-mobile-controls{display:block;position:-webkit-sticky;position:sticky;bottom:12px;padding:10px 0 4px;background:linear-gradient(180deg,hsla(40,39%,95%,.65),hsla(40,39%,95%,.95))}}