/* NovaSolver home v2. Independent of calculator canvas and legacy layouts. */
:root{--ink:#102c3a;--muted:#556b73;--paper:#f6f8f5;--line:#d9e3df;--accent:#087c76;--navy:#092e3e}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.ns-home{margin:0;background:var(--paper);color:var(--ink);font:16px/1.8 system-ui,-apple-system,"Noto Sans JP","Yu Gothic",sans-serif}
.ns-home a{color:inherit;text-decoration:none}
.ns-home a:hover{color:var(--accent)}
.ns-home a:focus-visible,.ns-home input:focus-visible,.ns-home button:focus-visible,.ns-home summary:focus-visible{outline:3px solid #d58d29;outline-offset:4px}
.ns-home .shell{width:min(1184px,calc(100% - 80px));margin-inline:auto}
.ns-home .skip{position:absolute;top:-80px;left:16px;background:#fff;padding:10px;z-index:50}
.ns-home .skip:focus{top:8px}
.ns-header{border-bottom:1px solid var(--line);background:#fff}
.ns-header .shell{min-height:80px;display:flex;align-items:center;gap:36px}
.ns-brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:750;letter-spacing:-1px;white-space:nowrap}
.ns-mark{background:var(--navy);color:#fff;display:grid;place-items:center;width:32px;height:32px;border-radius:9px;font:italic 25px Georgia,serif}
.ns-nav{display:flex;gap:26px;margin-left:auto;font-size:14px;font-weight:600;align-items:center}
.ns-languages{display:flex;gap:11px;border-left:1px solid var(--line);padding-left:22px;font:12px system-ui,sans-serif}
.ns-languages [aria-current]{color:var(--accent);text-decoration:underline;text-underline-offset:6px}
.ns-hero{padding:66px 0 44px;display:grid;grid-template-columns:1.12fr 1fr;gap:56px;align-items:center}
.ns-eyebrow{font:600 11px/1.5 system-ui,sans-serif;letter-spacing:.19em;color:var(--accent);margin:0 0 20px;text-transform:uppercase;display:flex;gap:8px;align-items:center}
.ns-eyebrow:before{content:"";width:7px;height:7px;background:var(--accent);border-radius:50%}
.ns-home h1{font-size:clamp(30px,3.4vw,46px);letter-spacing:-.045em;line-height:1.42;margin:0 0 20px;font-weight:750}
.ns-home h1 span{color:var(--accent)}
.ns-lead{color:var(--muted);font-size:15px;max-width:540px;margin:0 0 26px;line-height:1.95}
.ns-search{display:flex;gap:8px;padding:6px;background:#fff;border:1px solid #b4cac2;border-radius:9px;box-shadow:0 5px 20px #102c3a06}
.ns-search input{min-width:0;flex:1;border:0;background:transparent;font:inherit;font-size:15px;padding:9px 12px;color:var(--ink)}
.ns-search button{border:0;background:var(--accent);color:#fff;border-radius:5px;padding:10px 18px;font:inherit;font-size:14px;font-weight:650;cursor:pointer;white-space:nowrap}
.ns-quick{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12px;margin-top:12px;color:var(--muted)}
.ns-quick a{border-bottom:1px solid #becdc7}
.ns-lab{background:var(--navy);color:#d6e6e6;border-radius:14px;overflow:hidden;box-shadow:0 14px 40px #092e3e18;transform:rotate(-1deg)}
.ns-lab-head{display:flex;justify-content:space-between;padding:17px 22px;border-bottom:1px solid #ffffff18;font:11px system-ui,sans-serif;letter-spacing:.08em}
.ns-lab svg{display:block;width:100%;height:230px}
.ns-lab-values{display:grid;grid-template-columns:1fr 1fr 1fr;margin:0 20px;border-top:1px solid #ffffff20;padding:15px 0}
.ns-lab-values div{padding:0 10px;border-right:1px solid #ffffff20}
.ns-lab-values div:last-child{border:0}
.ns-lab-values dt{font:10px/1.5 system-ui,sans-serif;color:#9dbdc2}
.ns-lab-values dd{font:20px/1.6 ui-monospace,monospace;margin:4px 0}
.ns-lab-note{font-size:10px;text-align:right;margin:0 22px 12px;color:#a8c2c7}
.ns-home .ns-lab-link{display:flex;justify-content:space-between;background:#ffffff09;padding:13px 22px;color:#b6efe0;font-size:13px}
.ns-home .ns-lab-link:hover{background:#ffffff16;color:#fff}
.ns-proof{display:flex;gap:30px;flex-wrap:wrap;padding:20px 0 26px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.ns-proof strong{color:var(--ink);font-size:18px;margin-right:5px}
.ns-section{padding:42px 0}
.ns-section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
.ns-home h2{font-size:25px;letter-spacing:-.03em;margin:0;line-height:1.5}
.ns-section-head p{margin:5px 0 0;font-size:14px;color:var(--muted)}
.ns-all{font-size:13px;white-space:nowrap;border-bottom:1px solid #9fb6ae}
.ns-featured{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ns-tool-card{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden;transition:transform .2s,border-color .2s}
.ns-tool-card:hover{transform:translateY(-3px);border-color:var(--accent)}
.ns-card-art{height:125px;background:#eaf1ed;padding:8px 20px;color:#277970}
.ns-tool-card:nth-child(2) .ns-card-art{background:#ecf1f6;color:#4b7395}
.ns-tool-card:nth-child(3) .ns-card-art{background:#f4eee4;color:#b97934}
.ns-tool-card:nth-child(4) .ns-card-art{background:#eeedf6;color:#7d6c9a}
.ns-card-art svg{height:100%;width:100%;display:block}
.ns-card-body{padding:18px 20px 20px}
.ns-card-index{font:10px/1.4 ui-monospace,monospace;color:var(--muted);letter-spacing:.06em}
.ns-home h3{font-size:16px;line-height:1.55;margin:8px 0}
.ns-card-body p{font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 18px}
.ns-card-action{font-size:12px;font-weight:650;display:flex;justify-content:space-between;color:var(--accent)}
.ns-categories{display:grid;grid-template-columns:repeat(4,1fr);gap:0 28px}
.ns-category{border-bottom:1px solid var(--line);padding:16px 0;display:flex;gap:14px;align-items:center;font-size:14px}
.ns-category .num{font:11px ui-monospace,monospace;color:#82998d}
.ns-category .arrow{margin-left:auto;color:var(--accent)}
.ns-home details{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 18px}
.ns-home summary{cursor:pointer;font-size:14px;font-weight:600}
.ns-themes{display:flex;flex-wrap:wrap;gap:9px 18px;margin:18px 0;font-size:13px}
.ns-themes a{border-bottom:1px solid var(--line)}
.ns-guide{background:#e7eeea;border-radius:12px;padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:46px}
.ns-guide h2{font-size:22px;margin:0 0 12px}
.ns-guide p{font-size:14px;color:var(--muted);margin:0 0 14px}
.ns-guide-links{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;text-decoration:underline;text-underline-offset:4px}
.ns-footer{margin-top:52px;border-top:1px solid var(--line);background:#fff;padding:28px 0 24px;font-size:12px;color:var(--muted)}
.ns-footer .shell{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ns-footer nav{display:flex;gap:20px;flex-wrap:wrap}
@media(max-width:1000px){.ns-home .shell{width:calc(100% - 48px)}.ns-hero{gap:28px}.ns-featured{grid-template-columns:repeat(2,1fr)}.ns-nav{gap:16px}.ns-languages{padding-left:12px}.ns-categories{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.ns-home .shell{width:calc(100% - 36px)}.ns-header .shell{min-height:68px;gap:12px;flex-wrap:wrap;padding-block:15px}.ns-brand{font-size:21px}.ns-nav{gap:16px;font-size:12px}.ns-nav .secondary{display:none}.ns-languages{margin-left:auto;padding-left:0;border:0}.ns-hero{grid-template-columns:1fr;padding:34px 0 24px;gap:30px}.ns-home h1{font-size:32px;line-height:1.5}.ns-lead{font-size:14px}.ns-lab{transform:none}.ns-lab svg{height:190px}.ns-proof{gap:10px 24px;font-size:12px}.ns-proof strong{font-size:16px}.ns-home h2{font-size:22px}.ns-section{padding:30px 0}.ns-section-head{align-items:start}.ns-section-head p{font-size:13px}.ns-all{font-size:11px}.ns-featured{gap:12px}.ns-card-art{height:98px;padding:8px}.ns-card-body{padding:12px}.ns-home h3{font-size:14px}.ns-card-body p{font-size:12px;margin-bottom:12px}.ns-categories{grid-template-columns:1fr 1fr;gap:0 18px}.ns-category{font-size:13px;gap:8px}.ns-guide{grid-template-columns:1fr;gap:24px;padding:24px}.ns-footer{margin-top:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.ns-tool-card{transition:none}.ns-tool-card:hover{transform:none}}