:root{color-scheme:light}
/* UsefulHub - homepage + scheme pages (approved mobile-first design) */
:root{--scheme:#E8590C;--scheme-strong:#C2410C;--scheme-bg:#FFF4E8;--scheme-line:#F3D5BB;--scheme-ink:#B8420A;--chip:#EEF7F4}


body.v2{--font-display:"Poppins","Noto Sans Devanagari",system-ui,sans-serif;--font-body:"Poppins","Noto Sans Devanagari",system-ui,sans-serif}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.kw{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.v2 svg{fill:none;stroke-linecap:round;stroke-linejoin:round}
.h-hero{display:flex;flex-direction:column;gap:12px;padding-top:4px}
.h-hero h1{font-size:clamp(24px,4.2vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.hl{display:inline-block;background:#0A6E55;color:#fff;padding:0 .28em;border-radius:6px}
.h-hero .lede{font-size:15px;line-height:1.6;max-width:56ch}
.hs{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 6px 6px 16px;box-shadow:0 6px 18px rgba(10,110,85,.1);max-width:640px}
.hs:focus-within{outline:2px solid var(--accent);outline-offset:2px}
.hs i{display:grid;flex:none}.hs i svg{width:20px;height:20px;stroke:var(--muted);stroke-width:2}
.hs input{flex:1;min-width:0;border:0;background:transparent;color:var(--fg);font:inherit;font-size:16px;min-height:44px;outline:none}
.hs button{border:0;border-radius:999px;background:var(--accent);color:var(--accent-ink);font:inherit;font-size:14px;font-weight:600;padding:11px 22px;cursor:pointer}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin-inline:-16px;padding:2px 16px}
.chips::-webkit-scrollbar{display:none}
.chips button{flex:none;border:0;border-radius:999px;padding:9px 15px;font:inherit;font-size:13px;font-weight:600;line-height:1;background:var(--chip);color:var(--accent);cursor:pointer;min-height:38px}
.chips button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.chips button.o{background:var(--scheme-strong);color:#fff}
.chips button.o[aria-pressed="true"]{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--scheme-strong)}
.secs{display:flex;flex-direction:column;gap:22px}
.sec{display:flex;flex-direction:column;gap:10px}
.sh{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.sh h2{font-size:17px;font-weight:700}
.more{background:none;border:0;padding:6px 0;font:inherit;font-size:13px;font-weight:600;color:var(--accent);cursor:pointer;text-decoration:none}
.more.o{color:var(--scheme-ink)}
.tg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.tc{display:flex;flex-direction:column;gap:7px;padding:11px 10px;min-height:80px;background:var(--surface);border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--fg);position:relative}
.tc:hover{border-color:var(--accent)}
.tc b{font-size:12.5px;font-weight:600;line-height:1.3}
.ti{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;flex:none}
.ti svg{width:17px;height:17px;stroke:#fff;stroke-width:1.8}
.sec:not(.open) .tg .x{display:none}
body.filtering .sec .tg .x{display:flex!important}
body.filtering .more[data-more]{display:none}
.strip{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;scroll-padding-inline:16px;scrollbar-width:none;margin-inline:-16px;padding:2px 16px 6px}
.strip::-webkit-scrollbar{display:none}
.sc{flex:0 0 152px;scroll-snap-align:start;display:flex;flex-direction:column;gap:6px;padding:12px;background:var(--scheme-bg);border:1px solid var(--scheme-line);border-radius:14px;text-decoration:none;color:var(--fg)}
.sc .ti{background:var(--scheme);width:30px;height:30px}
.sc b{font-size:12.5px;font-weight:600;line-height:1.3}
.sc em{font-style:normal;font-size:11.5px;font-weight:600;color:var(--scheme-ink);margin-top:auto}
.sc.all{background:var(--scheme-strong);border-color:var(--scheme-strong);color:#fff}
.sc.all .ti{background:rgba(255,255,255,.22)}.sc.all em{color:#fff}
.sc:hover{border-color:var(--scheme)}
.noresult{color:var(--muted)}
@media(min-width:720px){
.chips,.strip{margin-inline:-24px;padding-inline:24px;scroll-padding-inline:24px}
.tg{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.tc{flex-direction:row;align-items:center;gap:12px;min-height:0;padding:12px 14px}.tc b{font-size:14px}
.sc{flex:1 0 170px}.sc b{font-size:14px}
.h-hero .lede{font-size:17px}}
/* scheme pages */
.sp{gap:18px}
.sp h1{font-size:clamp(24px,5.4vw,34px);line-height:1.3;margin-top:8px}
.pill{display:inline-block;background:var(--scheme-bg);color:var(--scheme-ink);border:1px solid var(--scheme-line);font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px}
.ben{background:var(--scheme-strong);color:#fff;border-radius:16px;padding:18px}
.ben small{font-size:13px;opacity:.9}.ben p{font-size:18px;font-weight:600;line-height:1.5;margin-top:4px}
.btn.wide{align-self:stretch;text-align:center;text-decoration:none;display:flex;justify-content:center;align-items:center}
.sp section{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:10px}
.sp section h2{font-size:17px;font-weight:700}
.sp section ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;line-height:1.6}
.sp section.more-sch{background:transparent;border:0;padding:0}
.sp .strip{margin-inline:-16px}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
/* compact mobile: more fits on one screen */
@media(max-width:719px){
main.home{padding-top:10px;gap:10px}
.h-hero{gap:8px;padding-top:0}
.h-hero h1{font-size:min(21px,calc((100vw - 32px)/17.5));line-height:1.25;white-space:nowrap}
.h-hero .lede{display:none}
.hl{padding:0 .22em;border-radius:5px}
.hs{padding:3px 3px 3px 14px;gap:8px}
.hs i svg{width:17px;height:17px}
.hs input{font-size:15px;min-height:38px}
.hs button{padding:8px 18px;font-size:13px}
.chips button{padding:7px 13px;font-size:12px;min-height:32px}
.secs{gap:12px}
.sec{gap:5px}
.sh h2{font-size:15px}
.more{font-size:12px;padding:2px 0}
.tg{gap:8px}
.tc{gap:5px;padding:8px 9px;min-height:0;border-radius:12px}
.tc b{font-size:11.5px;line-height:1.25}
.ti{width:28px;height:28px;border-radius:8px}
.ti svg{width:15px;height:15px}
.strip{gap:8px;padding-bottom:2px}
.sc{flex-basis:136px;gap:4px;padding:8px 9px;border-radius:12px}
.sc .ti{width:26px;height:26px}.sc .ti svg{width:14px;height:14px}
.sc b{font-size:11.5px}.sc em{font-size:10.5px}
}

/* schemes: 2 visible, rest under View all */
.home .strip{display:grid;grid-template-columns:1fr 1fr;gap:10px;overflow:visible;margin-inline:0;padding:2px 0 4px}
.home .strip .sc{flex:none;min-width:0}
.home .strip .sc.all{grid-column:1/-1;flex-direction:row;align-items:center;gap:10px}
.home .strip .sc.all b{flex:1}
.sec:not(.open) .strip .x{display:none}
body.filtering .strip .x{display:flex!important}
@media(min-width:720px){.home .strip{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}.home .strip .sc.all{grid-column:auto;flex-direction:column;align-items:flex-start}}

@media(max-width:719px){.home .strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.home .strip .sc{padding:8px;gap:4px}.home .strip .sc b{font-size:11.5px;overflow-wrap:anywhere}.home .strip .sc em{font-size:10.5px}}

body.v2{--font-mono:"Poppins","Noto Sans Devanagari",system-ui,sans-serif}

/* typography polish: Poppins runs wide, so 15px body + clearer heading steps */
body.v2{font-size:15px;line-height:1.6}
.v2 .prose{gap:10px}
.v2 .prose h2{font-size:18px;font-weight:700;line-height:1.35;margin-top:4px}
.v2 .prose h3{font-size:16px;font-weight:600}
.v2 .prose p,.v2 .prose li{font-size:14.5px;line-height:1.65}
.v2 .sp section h2{font-size:18px}
.v2 .sp section li,.v2 .sp section p{font-size:14.5px;line-height:1.6}
.v2 .sp section ul{gap:5px}
.v2 .small,.v2 .fnote p{font-size:12.5px;line-height:1.55}
.v2 .faq summary{font-size:15px;font-weight:600}
.v2 .faq p{font-size:14.5px}
@media(max-width:719px){main.home .prose{padding:18px}}

/* footer: grouped tool links */
.fcol.tools h4{color:#fff;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.7;margin:16px 0 8px}
.fcol.tools h3+h4{margin-top:4px}
@media(max-width:719px){.fcol.tools ul{grid-template-columns:1fr 1fr;gap:8px 14px;font-size:13.5px;line-height:1.4}}
.fcol ul{font-size:13.5px}
@media(max-width:719px){.fcol:not(.tools) ul{grid-template-columns:1fr 1fr;gap:8px 14px;line-height:1.4}}
.fnote a{text-decoration:underline}