/* DigiToolkit design system. Identity: tactile calculator keys on a clean, precise page.
   Every category has its own colour (--c) which themes icons, the header bar and hover states. */
@font-face{font-family:"Bricolage";src:url(/assets/fonts/bricolage.woff2) format("woff2");font-weight:200 800;font-display:swap}
@font-face{font-family:"Onest";src:url(/assets/fonts/onest.woff2) format("woff2");font-weight:100 900;font-display:swap}

:root{
  --ink:#0F1217;--ink-2:#3C434F;--muted:#5F6775;--paper:#F5F5F1;--surface:#FFFFFF;--surface-2:#F0F0EB;--line:#E2E2DA;--line-2:#CFCFC5;
  --accent:#FF5B1F;--accent-deep:#B83A08;--accent-ink:#C23D0A;--on-accent:#0F1217;
  --lcd:#12161D;--lcd-line:#2A303B;--on-lcd:#FFFFFF;--on-lcd-2:#A7AFBD;
  --good:#15803D;--warn:#B45309;--bad:#BE123C;
  --r:16px;--r-sm:11px;--c:#FF5B1F;
  --display:"Bricolage","Arial Narrow",system-ui,sans-serif;--body:"Onest",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;--mono:ui-monospace,"Cascadia Mono","SFMono-Regular",Consolas,Menlo,monospace;
  --head-h:68px;color-scheme:light;
}
:root[data-theme="dark"]{
  --ink:#F1F2F4;--ink-2:#C7CCD4;--muted:#99A1AE;--paper:#0D1015;--surface:#161A21;--surface-2:#1D222B;--line:#272C36;--line-2:#39404C;
  --accent-ink:#FF8455;--lcd:#080A0E;--lcd-line:#272C36;--good:#4ADE80;--warn:#FBBF24;--bad:#FB7185;color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --ink:#F1F2F4;--ink-2:#C7CCD4;--muted:#99A1AE;--paper:#0D1015;--surface:#161A21;--surface-2:#1D222B;--line:#272C36;--line-2:#39404C;
  --accent-ink:#FF8455;--lcd:#080A0E;--lcd-line:#272C36;--good:#4ADE80;--warn:#FBBF24;--bad:#FB7185;color-scheme:dark;
}}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:136px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.65 var(--body);-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:-.022em;line-height:1.12;margin:0 0 .5em;text-wrap:balance}
h2{font-size:clamp(1.65rem,2.6vw,2.25rem)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
ul[role="list"]{list-style:none}
code,pre,kbd{font-family:var(--mono)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.ic{width:1em;height:1em;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.wrap,.container{width:100%;max-width:1280px;margin-inline:auto;padding-inline:24px}
.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}
.skip-link{position:absolute;left:-999px;top:0;z-index:90;background:var(--accent);color:var(--on-accent);padding:.5rem 1rem;border-radius:8px}
.skip-link:focus{left:1rem;top:.5rem}
.muted{color:var(--muted)}

/* Keycap buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:46px;padding:.6rem 1.35rem;border:0;border-radius:var(--r-sm);font:600 .95rem/1 var(--body);cursor:pointer;transition:transform .08s,box-shadow .08s,filter .15s}
.btn:active{transform:translateY(3px)}
.btn-primary{background:var(--accent);color:var(--on-accent);box-shadow:0 3px 0 var(--accent-deep)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-primary:active{box-shadow:0 0 0 var(--accent-deep)}
.btn-dark{background:var(--ink);color:var(--paper);box-shadow:0 3px 0 color-mix(in srgb,var(--ink) 55%,var(--line-2))}
.btn-dark:active{box-shadow:none}
.btn-secondary{background:var(--surface);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line-2),0 3px 0 var(--line-2)}
.btn-secondary:active{box-shadow:inset 0 0 0 1px var(--line-2)}
.icon-btn{display:inline-grid;place-items:center;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);background:transparent;font-size:1.15rem;cursor:pointer}
.icon-btn:hover{background:var(--surface-2)}
.if-dark{display:none}
:root[data-theme="dark"] .if-dark{display:block}:root[data-theme="dark"] .if-light{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .if-dark{display:block}:root:not([data-theme="light"]) .if-light{display:none}}
kbd{font-size:.72rem;padding:.12rem .4rem;border-radius:6px;border:1px solid var(--line-2);box-shadow:0 1px 0 var(--line-2);color:var(--muted);background:var(--surface);white-space:nowrap}

/* Tiles: icon on a tint of the category colour */
.tile{display:inline-grid;place-items:center;width:44px;height:44px;flex:none;border-radius:12px;font-size:1.3rem;color:var(--c);background:color-mix(in srgb,var(--c) 13%,transparent)}
.tile.sm{width:40px;height:40px;font-size:1.15rem}
.tile.xs{width:28px;height:28px;border-radius:8px;font-size:.92rem}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 90%,transparent);backdrop-filter:saturate(170%) blur(12px);border-bottom:1px solid var(--line)}
.read-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--c);transform:scaleX(0);transform-origin:left;pointer-events:none;z-index:2}
.bar{display:flex;align-items:center;gap:1rem;height:var(--head-h)}
.logo{display:inline-flex;align-items:center;flex:none;color:var(--ink)}
.logo-svg{height:34px;width:auto;display:block}
.primary{display:flex;align-items:center;gap:.1rem;margin-left:.75rem}
.nav-link{display:inline-flex;align-items:center;gap:.3rem;height:var(--head-h);padding:0 .72rem;font-weight:500;font-size:.94rem;color:var(--ink-2);white-space:nowrap;position:relative}
.nav-link:hover,.is-open>.nav-link{color:var(--ink)}
.nav-link::after{content:"";position:absolute;left:.72rem;right:.72rem;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent);transform:scaleX(0);transition:transform .15s}
.nav-link:hover::after,.is-open>.nav-link::after{transform:scaleX(1)}
.chev{font-size:.85rem;transition:transform .15s;opacity:.65}
.is-open>.nav-link .chev{transform:rotate(180deg)}
.actions{display:flex;align-items:center;gap:.5rem;margin-left:auto}
.search-btn{display:inline-flex;align-items:center;gap:.55rem;height:42px;padding:0 .65rem 0 .8rem;min-width:206px;border:1px solid var(--line-2);border-radius:var(--r-sm);background:var(--surface);color:var(--muted);font-size:.9rem;cursor:pointer}
.search-btn:hover{border-color:var(--ink)}
.search-btn kbd{margin-left:auto}
.search-btn.wide{width:100%;margin:.25rem 0 .75rem}
.explore-cta{min-height:42px;padding-inline:1rem;font-size:.9rem;white-space:nowrap}
.menu-btn{display:none}

/* Mega menu */
.mega{position:absolute;left:0;right:0;top:var(--head-h);z-index:5;background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 26px 50px -22px rgb(15 18 23/.35);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .14s,transform .14s,visibility .14s}
.is-open>.mega{opacity:1;visibility:visible;transform:none}
.mega-grid{display:grid;grid-template-columns:318px 1fr;gap:0;padding-block:.75rem}
.mega-rail{list-style:none;max-height:calc(100vh - var(--head-h) - 34px);overflow-y:auto;border-right:1px solid var(--line);padding-right:.6rem;display:grid;gap:0}
.rail-item{display:flex;align-items:center;gap:.6rem;padding:.14rem .5rem;border-radius:9px;font-size:.86rem;font-weight:500;line-height:1.15}
.rail-item .tile.xs{width:26px;height:26px;font-size:.86rem}
.panel-subs{display:flex;flex-wrap:wrap;gap:.35rem;margin:.9rem .65rem 0;padding-top:.9rem;border-top:1px solid var(--line)}
.panel-subs a{padding:.24rem .68rem;border-radius:99px;font-size:.82rem;font-weight:500;color:var(--ink-2);background:color-mix(in srgb,var(--c) 9%,transparent)}
.panel-subs a:hover{background:color-mix(in srgb,var(--c) 18%,transparent);color:var(--ink)}
.rail-name{flex:1}
.rail-ct{font-size:.76rem;color:var(--muted)}
.rail-item.is-on{background:color-mix(in srgb,var(--c) 11%,transparent);color:var(--ink)}
.mega-panels{padding:.2rem 0 .2rem 1.5rem;display:flex;flex-direction:column;min-width:0}
.mega-panel{display:none}
.mega-panel.is-on{display:block}
.panel-head{display:flex;align-items:center;gap:.8rem;padding:.55rem .65rem;border-radius:12px;margin-bottom:.45rem}
.panel-head:hover{background:color-mix(in srgb,var(--c) 9%,transparent)}
.panel-head b{display:block;font:700 1.2rem/1.2 var(--display);letter-spacing:-.015em}
.panel-head small{color:var(--muted);font-size:.82rem}
.panel-head .go{margin-left:auto;color:var(--c)}
.panel-tools{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.panel-tools a,.group li a{display:flex;align-items:center;gap:.55rem;padding:.48rem .65rem;border-radius:9px;font-size:.89rem;line-height:1.25;color:var(--ink-2)}
.panel-tools a .ic,.group li a .ic{color:var(--c);font-size:.98rem}
.panel-tools a:hover,.group li a:hover{background:var(--surface-2);color:var(--ink)}
.mega-all{display:inline-flex;align-items:center;gap:.4rem;margin:auto 0 .1rem .65rem;padding-top:.6rem;font-weight:600;font-size:.88rem;color:var(--accent-ink)}
.groups-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1.1rem 1.5rem;padding-block:1.1rem 1.3rem}
.group-head{display:flex;align-items:center;gap:.55rem;font:700 .98rem/1.2 var(--display);margin-bottom:.35rem;padding:.2rem .4rem}
.group ul{list-style:none}
.group li a{padding-block:.36rem;font-size:.87rem}

/* Category bar: the part of the header that changes per section */
.ctx{border-top:1px solid var(--line);background:color-mix(in srgb,var(--c) 7%,var(--surface))}
.ctx-row{display:flex;align-items:center;gap:1rem;height:48px}
.ctx-home{display:inline-flex;align-items:center;gap:.5rem;flex:none;font-size:.93rem;padding-right:1rem;border-right:1px solid color-mix(in srgb,var(--c) 26%,var(--line))}
.ctx-home b{font:700 .98rem/1 var(--display);letter-spacing:-.01em}
.ctx-links{display:flex;gap:.2rem;overflow-x:auto;scrollbar-width:none;mask-image:linear-gradient(90deg,#000 94%,transparent)}
.ctx-links::-webkit-scrollbar{display:none}
.ctx-links a{flex:none;padding:.26rem .68rem;border-radius:99px;font-size:.84rem;font-weight:500;color:var(--ink-2);white-space:nowrap}
.ctx-links a:hover{background:color-mix(in srgb,var(--c) 13%,transparent);color:var(--ink)}
.ctx-links a.is-on{background:color-mix(in srgb,var(--c) 78%,#000);color:#fff;font-weight:600}

/* Mobile drawer */
.drawer{position:fixed;inset:0;z-index:70;background:rgb(10 12 16/.55)}
.drawer[hidden]{display:none}
.drawer-panel{position:absolute;inset:0 0 0 auto;width:min(380px,92vw);background:var(--surface);overflow-y:auto;padding:.75rem 1rem 2rem}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}
.d-link,.d-group summary{display:flex;align-items:center;justify-content:space-between;padding:.72rem .25rem;font-weight:600;border-bottom:1px solid var(--line);cursor:pointer;list-style:none}
.d-group summary::-webkit-details-marker{display:none}
.d-group[open] summary .chev{transform:rotate(180deg)}
.d-sub{display:flex;align-items:center;gap:.6rem;padding:.42rem .25rem;font-size:.92rem}
.d-sub small{margin-left:auto;color:var(--muted)}
.d-group{padding-bottom:.2rem}

/* ---------- Palette ---------- */
.palette{width:min(640px,calc(100vw - 24px));margin:10vh auto auto;padding:0;border:1px solid var(--line-2);border-radius:var(--r);background:var(--surface);color:var(--ink);box-shadow:0 30px 80px -20px rgb(0 0 0/.55);overflow:hidden}
.palette::backdrop{background:rgb(10 12 16/.55);backdrop-filter:blur(3px)}
.pal-top{display:flex;align-items:center;gap:.7rem;padding:.8rem 1rem;border-bottom:1px solid var(--line);font-size:1.15rem;color:var(--muted)}
.pal-top input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--ink);font:500 1.08rem var(--body)}
input[type=search]::-webkit-search-cancel-button{appearance:none}
.pal-list{list-style:none;max-height:min(56vh,430px);overflow-y:auto;padding:.4rem}
.pal-sec{display:flex;gap:.4rem;align-items:center;padding:.6rem .6rem .25rem;font-size:.76rem;font-weight:600;color:var(--muted)}
.pal-list li a{display:flex;align-items:center;gap:.7rem;padding:.55rem .6rem;border-radius:9px}
.pal-list li .ic{opacity:0}
.pal-list li.on a,.pal-list li a:hover{background:var(--surface-2)}
.pal-list li.on .ic{opacity:.6}
.pal-n{font-weight:500}
.pal-c{margin-left:auto;font-size:.8rem;color:var(--muted);text-align:right}
.pal-empty{padding:1.2rem;text-align:center;color:var(--muted)}
.pal-empty a{color:var(--accent-ink);font-weight:600}

/* ---------- Hero (home) ---------- */
.hero{background-color:#0F1217;color:#fff;background-image:radial-gradient(rgb(255 255 255/.075) 1px,transparent 1.2px);background-size:22px 22px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(330px,.8fr);gap:clamp(2rem,5vw,4.5rem);align-items:center;padding-block:clamp(2.75rem,6vw,5.25rem)}
.hero-badge{display:inline-flex;align-items:center;gap:.55rem;padding:.32rem .8rem;border:1px solid #333A46;border-radius:99px;background:#181C23;font-size:.85rem;color:#D5DAE2;margin-bottom:1.25rem}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgb(255 91 31/.25)}
.hero h1{color:#fff;font-size:clamp(2.75rem,6.4vw,5.35rem);font-weight:800;line-height:.98;letter-spacing:-.04em;margin-bottom:.4em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{max-width:39rem;font-size:clamp(1.02rem,1.5vw,1.17rem);line-height:1.6;color:#B8BFCB;margin-bottom:1.6rem}
.hero-search{display:flex;gap:.6rem;align-items:stretch;max-width:39rem;padding:.45rem;border-radius:calc(var(--r) + 2px);background:#fff;box-shadow:0 0 0 1px #000,0 18px 40px -18px #000}
.hero-search .search-wrap{flex:1;min-width:0;position:relative;display:flex;align-items:center}
.search-ic{position:absolute;left:.85rem;color:#5F6775;font-size:1.15rem;pointer-events:none}
.hero-search .search-input{width:100%;height:48px;padding:0 .5rem 0 2.6rem;border:0;outline:0;background:transparent;color:#0F1217;font:500 1.04rem var(--body);cursor:pointer}
.hero-search .search-input::placeholder{color:#5F6775}
.hero-ticks{display:flex;flex-wrap:wrap;gap:.4rem 1.3rem;margin-top:1.15rem;font-size:.9rem;color:#B8BFCB}
.preview-card{position:relative;padding:1.2rem;border-radius:22px;background:#fff;color:#0F1217;box-shadow:0 7px 0 #A8ABB2,0 40px 60px -28px #000}
.preview-badge{position:absolute;top:1.25rem;right:1.2rem;font-size:.72rem;font-weight:600;color:#15803D;display:inline-flex;align-items:center;gap:.35rem}
.preview-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:#16A34A}
.preview-head{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.preview-title{font:700 1.08rem/1.2 var(--display)}
.preview-sub{font-size:.82rem;color:#5F6775}
.preview-inputs{display:grid;grid-template-columns:1fr 1fr;gap:.55rem;margin-bottom:.55rem}
.preview-in{padding:.5rem .7rem;background:#F0F0EB;border-radius:11px;display:block}
.preview-in:focus-within{outline:2px solid var(--accent)}
.preview-in span{display:block;font-size:.76rem;color:#5F6775}
.preview-in b{display:flex;align-items:baseline;gap:.25rem;font:700 1.15rem var(--display)}
.preview-in input{width:100%;min-width:0;padding:0;border:0;outline:0;background:transparent;color:#0F1217;font:700 1.25rem var(--display);-moz-appearance:textfield}
.preview-in input::-webkit-inner-spin-button{appearance:none}
.preview-in em{font:500 .82rem var(--body);color:#5F6775}
.preview-result{padding:.9rem 1rem;border-radius:14px;background:#12161D;color:#fff;display:grid;grid-template-columns:1fr auto;align-items:center;gap:.05rem .8rem;margin-bottom:.9rem}
.preview-r-label{grid-column:1/-1;font-size:.8rem;color:#A7AFBD}
.preview-r-val{font:800 2.9rem/1 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.preview-tag{padding:.24rem .62rem;border-radius:99px;font-size:.78rem;font-weight:600;background:#BBF7D0;color:#14532D}
.preview-tag[data-state="warn"]{background:#FDE68A;color:#713F12}
.preview-tag[data-state="bad"]{background:#FECDD3;color:#881337}
.preview-btn{width:100%}

/* ---------- Sections ---------- */
.sec{padding-block:clamp(2.75rem,5vw,4.25rem)}
.bg-soft{background:var(--surface-2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}
.sec-head h2{margin-bottom:.15em}
.sub{color:var(--muted);margin:0}
.eyebrow{font-size:.85rem;font-weight:600;color:var(--accent-ink);margin-bottom:.35rem}
.sec-link{flex:none;font-weight:600;font-size:.92rem;color:var(--accent-ink);padding:.3rem 0;border-bottom:2px solid currentColor}
.sec-link:hover{color:var(--ink)}
.tgrid,.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.9rem}
.grid{display:grid;gap:.9rem}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}

.tcard{--c:var(--accent);display:flex;flex-direction:column;padding:1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);transition:transform .14s,box-shadow .14s,border-color .14s}
.tcard:hover{transform:translateY(-3px);border-color:var(--tc,var(--line-2));box-shadow:0 3px 0 var(--tc,var(--line-2))}
.tcard:has(.tile){--tc:var(--line-2)}
.tcard-top{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin-bottom:.8rem}
.tcard-cat{font-size:.75rem;color:var(--muted);text-align:right;line-height:1.25}
.tcard-name{font:700 1.11rem/1.22 var(--display);letter-spacing:-.012em;margin-bottom:.35rem}
.tcard-desc{font-size:.86rem;line-height:1.45;color:var(--muted);margin-bottom:.8rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tcard-open{margin-top:auto;font-size:.85rem;font-weight:600;color:var(--accent-ink)}

.mgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem}
.mcard{display:flex;align-items:center;gap:.7rem;padding:.7rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);transition:border-color .14s,transform .14s}
.mcard:hover{border-color:var(--line-2);transform:translateY(-2px)}
.mcard-body{display:block;min-width:0}
.mcard-name{display:block;font-weight:600;line-height:1.25}
.mcard-cat{display:block;font-size:.77rem;color:var(--muted)}

/* Category keypad */
.cgrid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:.7rem}
.ccard{display:flex;flex-direction:column;align-items:flex-start;gap:.6rem;min-height:128px;padding:.85rem;background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r);box-shadow:0 4px 0 var(--line-2);transition:transform .08s,box-shadow .08s,background .14s}
.ccard:hover{background:var(--surface-2)}
.ccard:active{transform:translateY(4px);box-shadow:none}
.ccard-body{display:flex;flex-direction:column;flex:1;width:100%}
.ccard-nm{font:700 .96rem/1.2 var(--display);letter-spacing:-.008em}
.ccard-ct{margin-top:auto;padding-top:.3rem;font-size:.77rem;color:var(--muted)}

/* Why + how */
.whyhow{background:#0F1217;color:#fff;background-image:radial-gradient(rgb(255 255 255/.06) 1px,transparent 1.2px);background-size:22px 22px;padding-block:clamp(3rem,5.5vw,4.75rem)}
.whyhow h2{color:#fff}
.whyhow .eyebrow{color:#FF8455}
.whyhow-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem)}
.why-list,.step-list{display:grid;gap:1.15rem;margin-top:1.4rem}
.why-item,.step{display:flex;gap:.9rem}
.why-ico,.step-n{display:grid;place-items:center;width:34px;height:34px;flex:none;border-radius:9px;font:700 .95rem var(--display)}
.why-ico{background:#22272F;color:#FF8455}
.step-n{background:var(--accent);color:#0F1217;box-shadow:0 3px 0 var(--accent-deep)}
.why-t{font-weight:600;margin-bottom:.1rem}
.why-b{font-size:.93rem;color:#B8BFCB;line-height:1.5}

/* FAQ */
.faq{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:.55rem}
.faq summary{display:flex;justify-content:space-between;gap:1rem;padding:.82rem 1rem;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font:500 1.3rem/1.1 var(--display);color:var(--accent-ink)}
.faq[open] summary::after{content:"\2212"}
.faq p{margin:0;padding:0 1rem .95rem;color:var(--ink-2)}
.tpl-home .prose{columns:2;column-gap:.8rem;max-width:none}
.tpl-home .faq{break-inside:avoid;display:block}
#dt-recent{padding-block:0 3rem}
.chips{display:flex;flex-wrap:wrap;gap:.45rem}
.chip-link{padding:.35rem .8rem;border:1px solid var(--line-2);border-radius:99px;font-size:.88rem;background:var(--surface)}

/* ---------- Tool page ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:.35rem;padding-block:1rem .25rem;font-size:.84rem;color:var(--muted)}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{opacity:.5}
.calc-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:1.75rem;align-items:start;padding-top:.5rem}
.page-h1{font-size:clamp(2.1rem,4vw,3.1rem);font-weight:800;letter-spacing:-.033em;margin-bottom:.25em;display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.fav-btn{display:inline-grid;place-items:center;width:38px;height:38px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-size:1.05rem;color:var(--muted);cursor:pointer}
.fav-btn:hover{color:var(--ink)}
.fav-btn.on{color:#D97706;border-color:#D97706}
.fav-btn.on .ic{fill:currentColor}
.lead{font-size:1.08rem;line-height:1.55;color:var(--ink-2);max-width:48rem;margin-bottom:1.1rem}
.calc-box{padding:clamp(1rem,2.3vw,1.6rem);background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:0 18px 40px -32px rgb(15 18 23/.5)}
.calc-instruction{font-size:.9rem;color:var(--muted);margin-bottom:.9rem}
.calc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem}
.col-span-2{grid-column:1/-1}
.label{display:block;margin-bottom:.32rem;font-weight:600;font-size:.89rem}
.field{width:100%;height:50px;padding:0 .9rem;border:1.5px solid var(--line-2);border-radius:var(--r-sm);background:var(--paper);color:var(--ink);font:600 1.08rem var(--body);transition:border-color .12s,box-shadow .12s}
.field:hover{border-color:var(--muted)}
.field:focus{outline:0;border-color:var(--c,var(--accent));box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
select.field{font-weight:500;font-size:1rem}
.help{font-size:.8rem;color:var(--muted);margin:.25rem 0 0}
.err{font-size:.82rem;color:var(--bad);margin-top:.25rem}
.err-box{padding:.7rem .9rem;border-radius:10px;background:color-mix(in srgb,var(--bad) 11%,transparent);color:var(--bad);margin:0;font-weight:500}
.btn-row{display:flex;flex-wrap:wrap;gap:.65rem;margin-top:1.15rem}
.btn-row .btn-primary{flex:1 1 200px;font-size:1.03rem;min-height:52px}
.btn-row .btn-secondary{min-height:52px}
.result-area{margin-top:1.3rem}
.result-area>.muted{padding:1rem;border:1.5px dashed var(--line-2);border-radius:var(--r-sm);text-align:center;margin:0;font-size:.93rem}
.result-head{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin-bottom:.65rem}
.result-head h3{font-size:1.12rem;margin:0}
.result-actions{display:flex;gap:.4rem}
.mini{padding:.34rem .75rem;border:1px solid var(--line-2);border-radius:8px;background:var(--surface);font-size:.82rem;font-weight:600;cursor:pointer}
.mini:hover{background:var(--surface-2)}
.out-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:.6rem}
.out-card{padding:.85rem 1rem;background:var(--surface-2);border-radius:14px}
.out-card:first-child{background:var(--lcd);color:var(--on-lcd)}
.out-label{font-size:.82rem;color:var(--muted)}
.out-card:first-child .out-label{color:var(--on-lcd-2)}
.out-val{font:800 1.5rem/1.15 var(--display);letter-spacing:-.022em;font-variant-numeric:tabular-nums}
.out-card:first-child .out-val{font-size:clamp(2.2rem,5vw,3rem)}
.chart{display:flex;flex-wrap:wrap;align-items:center;gap:1.2rem;margin-top:1rem}
.legend{list-style:none;font-size:.88rem}
.legend .dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:.4rem}
.steps{margin-top:.9rem;padding:.7rem 1rem;border:1px solid var(--line);border-radius:12px}
.steps summary{font-weight:600;font-size:.92rem;cursor:pointer}
.steps ol{padding-left:1.25rem;margin-top:.5rem;font-size:.93rem}
.formula-box{margin-top:1.1rem;padding:.65rem .9rem;border-radius:10px;background:var(--surface-2);font:500 .9rem/1.45 var(--mono);overflow-x:auto}
.formula-box span{font-family:var(--body);font-weight:600;margin-right:.3rem}
.disc{margin:.75rem 0 0;font-size:.8rem;line-height:1.5;color:var(--muted)}

.dt-gauge{margin-top:.95rem;padding:.9rem 1rem .75rem;border:1px solid var(--line);border-radius:14px}
.g-status{margin:0 0 .75rem;font-size:.95rem}
.g-status b{color:var(--g)}
.g-bar{position:relative;display:flex;gap:2px;height:12px}
.g-bar span{border-radius:3px}
.g-bar i{position:absolute;top:-5px;width:6px;height:22px;margin-left:-3px;border-radius:4px;background:var(--ink);box-shadow:0 0 0 2px var(--surface)}
.g-scale{display:flex;margin-top:.35rem;font-size:.75rem;color:var(--muted)}

aside{position:sticky;top:136px}
.side-card{padding:1.05rem 1.1rem;background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.side-h{font:700 1rem var(--display);margin-bottom:.55rem}
.facts{margin:0}
.facts>div{display:flex;justify-content:space-between;gap:1rem;padding:.42rem 0;border-top:1px solid var(--line);font-size:.87rem}
.facts>div:first-child{border-top:0}
.facts dt{color:var(--muted)}
.facts dd{margin:0;font-weight:600;text-align:right}
.facts dd a{color:var(--accent-ink)}
.related-list{list-style:none}
.related-list a{display:flex;justify-content:space-between;gap:.6rem;padding:.48rem .25rem;border-top:1px solid var(--line);font-size:.91rem}
.related-list a:hover{color:var(--accent-ink)}

/* Article + on-this-page rail */
.article-wrap{display:grid;grid-template-columns:230px minmax(0,1fr);gap:2.75rem;align-items:start;margin-top:3rem;padding-top:2.25rem;border-top:1px solid var(--line)}
.toc{position:sticky;top:136px;max-height:calc(100vh - 160px);overflow-y:auto;font-size:.87rem}
.toc-h{display:flex;align-items:center;gap:.45rem;margin-bottom:.5rem;font-weight:600}
.toc ol{list-style:none;border-left:2px solid var(--line)}
.toc a{display:block;padding:.26rem .8rem;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);line-height:1.32}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--ink);font-weight:600;border-left-color:var(--accent)}
.prose{max-width:46rem}
.prose h2{font-size:clamp(1.4rem,2.2vw,1.75rem);margin:2.1em 0 .5em}
.prose>h2:first-of-type{margin-top:1.6em}
.prose ol,.prose ul{padding-left:1.25rem;margin-bottom:1em}
.prose li{margin-bottom:.35em}
.prose code{padding:.08em .35em;border-radius:5px;background:var(--surface-2);font-size:.9em}
.prose pre{padding:.9rem 1rem;border-radius:12px;background:var(--lcd);color:var(--on-lcd);overflow-x:auto;margin-bottom:1em}
.prose pre code{background:none;padding:0;color:inherit}
.quick-answer{padding:1.05rem 1.2rem;border-radius:14px;background:color-mix(in srgb,var(--accent) 10%,var(--surface))}
.quick-answer p{margin:.35rem 0 0}
.qa-tag{font:700 .9rem var(--display);color:var(--accent-ink)}
.aka{font-size:.92rem;color:var(--muted)}
.tbl{width:100%;border-collapse:collapse;margin-bottom:1.2em;font-size:.94rem;background:var(--surface);border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px var(--line)}
.tbl th,.tbl td{padding:.55rem .8rem;border-top:1px solid var(--line);text-align:left}
.tbl tr:first-child th,.tbl tr:first-child td{border-top:0}
.tbl th{font-weight:600;background:var(--surface-2)}
.note{padding:.8rem 1rem;border-radius:12px;background:color-mix(in srgb,#D97706 12%,var(--surface));font-size:.92rem;margin-top:1.4rem}
.byline{font-size:.85rem;color:var(--muted);margin-top:1rem}
.tpl-tool>section{margin-top:2.75rem}
.tpl-tool>section .sec-head{margin-bottom:1rem}
.tpl-tool>section:last-of-type{padding-block:0 3.5rem}

/* Blog cards */
.blogcard{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .14s,border-color .14s}
.blogcard:hover{transform:translateY(-3px);border-color:var(--line-2)}
.blogcard-img{display:grid;place-items:center;aspect-ratio:16/9;background-size:cover;background-position:center;background-color:var(--surface-2);font-size:1.6rem}
.blogcard-body{display:flex;flex-direction:column;flex:1;padding:.85rem .95rem .95rem}
.blogcard-title{font:700 1.02rem/1.25 var(--display);margin-bottom:.35rem}
.blogcard-ex{font-size:.85rem;line-height:1.45;color:var(--muted);margin-bottom:.6rem}
.blogcard-more{margin-top:auto;font-size:.84rem;font-weight:600;color:var(--accent-ink)}

/* ---------- Footer ---------- */
footer{background:#0F1217;color:#B8BFCB;font-size:.93rem}
footer .logo-svg{color:#fff;height:36px;width:auto;display:block;margin-bottom:.8rem}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;padding-block:3rem 2.25rem}
footer h4{margin:0 0 .6rem;font:700 1rem var(--display);color:#fff}
footer ul{list-style:none}
footer li{margin-bottom:.35rem}
footer a:hover{color:#fff}
.foot-desc{max-width:24rem}
.social{display:flex;gap:.4rem;margin-top:.9rem}
.social a{display:grid;place-items:center;width:36px;height:36px;border:1px solid #333A46;border-radius:9px;color:#fff;font-size:.9rem}
.social a:hover{border-color:#fff}
.foot-bot{border-top:1px solid #272C36;font-size:.84rem}
.foot-bot .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.25rem 1.5rem;padding-block:1rem}
.foot-bot p{margin:0}

/* Back to top */
#dt-top{position:fixed;right:20px;bottom:24px;z-index:40;display:none;place-items:center;width:46px;height:46px;border:0;border-radius:13px;background:var(--accent);color:#0F1217;font-size:1.2rem;box-shadow:0 3px 0 var(--accent-deep);cursor:pointer}
#dt-top[style*="flex"]{display:grid!important}

/* Mobile tab bar */
.tabbar{display:none}

.preview-note{padding-block:5rem;max-width:46rem}
.preview-note a{color:var(--accent-ink);font-weight:600}


/* ---------- Announcement bar ---------- */
.announce{background:var(--accent);color:var(--on-accent);font-size:.9rem;font-weight:600;text-align:center;padding:.4rem 0}
.announce a{text-decoration:underline}

/* ---------- Headings with icons ---------- */
.tile.h{width:1.15em;height:1.15em;margin-right:.35em;border-radius:.3em;font-size:.95em;vertical-align:-.12em}
.page-h1 .tile.h{width:48px;height:48px;border-radius:13px;font-size:1.5rem;margin-right:.1rem}
.sec-head h2:has(.tile.h){display:flex;align-items:center}
.sec-head h2 .tile.h{width:38px;height:38px;border-radius:10px;font-size:1.15rem;margin-right:.6rem}
.muted a{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px}

/* ---------- Hubs, categories and site pages ---------- */
.tpl-page{padding-bottom:3.5rem}
.tpl-page>section,.tpl-page>.container>section{margin-top:2.25rem}
.tpl-page .sec-head{margin-bottom:1rem}
.tpl-page .prose{margin-top:1rem}
.page-article{max-width:46rem}
.page-article h2{margin-top:1.6em}
.custom-page img{max-width:100%;height:auto;border-radius:12px}
.custom-page a,.page-article p a,.auto-link{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px}
.see-also{margin-top:1.6rem;padding:1rem 1.2rem;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.see-also ul{list-style:none;padding:0;margin:0}
.see-also li{margin:.2rem 0}
.see-also a{color:var(--accent-ink);font-weight:500}
.lead a{color:var(--accent-ink);font-weight:600}
.filters{display:grid;gap:.75rem;grid-template-columns:2fr 1fr 1fr}
.alpha{display:flex;flex-wrap:wrap;gap:.25rem;margin-top:1rem}
.alpha button{min-width:34px;height:34px;border:1px solid var(--line);background:var(--surface);border-radius:8px;font-size:.85rem;font-weight:600;color:var(--ink-2);cursor:pointer}
.alpha button:hover{border-color:var(--line-2);background:var(--surface-2)}
.alpha button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.count{font-size:.88rem;color:var(--muted);margin-top:1rem}
.loadmore{text-align:center;margin-top:2rem}
.two-col{display:grid;gap:2.5rem;grid-template-columns:1fr 1fr;margin-top:1rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px}
textarea.field{height:auto;padding:.7rem .9rem;font-weight:500;font-size:1rem;line-height:1.5}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-ok{display:none;border-radius:14px;padding:1.2rem;background:color-mix(in srgb,var(--good) 12%,var(--surface));color:var(--good);font-weight:500;margin-bottom:1rem}
.form-error{display:none;border-radius:10px;padding:.5rem .8rem;background:color-mix(in srgb,var(--bad) 12%,var(--surface));color:var(--bad);font-size:.88rem}
.notfound{text-align:center;padding:4.5rem 1rem}
.notfound .code{font:800 clamp(4.5rem,12vw,7.5rem)/1 var(--display);letter-spacing:-.05em;color:var(--accent);margin-bottom:.15em}
.notfound h1{font-size:clamp(1.8rem,4vw,2.6rem)}
.cta-row{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1.4rem}
.chip-link.brand{border-color:var(--line-2)}
.chip-link:hover{border-color:var(--ink)}
.sm-list{columns:3;column-gap:1.5rem;list-style:none;padding:0;margin:0}
.sm-list li{margin:.15rem 0;break-inside:avoid}
.sm-list a{font-size:.9rem;color:var(--ink-2)}
.sm-list a:hover{color:var(--accent-ink);text-decoration:underline}
.article-wrap.no-toc{grid-template-columns:minmax(0,1fr)}
.blogcard-noimg{color:var(--muted)}
img.blogcard-img{display:block;width:100%;height:auto;object-fit:cover}

/* ---------- PDF tools ---------- */
.pdf-drop{border:2px dashed color-mix(in srgb,var(--c) 50%,var(--line-2));border-radius:16px;background:color-mix(in srgb,var(--c) 5%,var(--surface));padding:2.25rem 1rem;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.pdf-drop:hover,.pdf-drop.over{border-color:var(--c);background:color-mix(in srgb,var(--c) 10%,var(--surface))}
.pdf-drop.has{padding:1rem}
.pdf-drop .pdf-ico{font-size:2.4rem}
.pdf-drop p{margin:.3rem 0}
.pdf-mut,.pdf-fs,.pdf-help,.pdf-note,.media-opt-h{color:var(--muted)}
.pdf-mut{font-size:.85rem}
.pdf-files{margin:.8rem 0;display:flex;flex-direction:column;gap:.4rem}
.pdf-file{display:flex;align-items:center;gap:.6rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.5rem .7rem;font-size:.88rem}
.pdf-fn{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pdf-fs{font-size:.8rem}
.pdf-x{border:0;background:color-mix(in srgb,var(--bad) 15%,transparent);color:var(--bad);border-radius:6px;width:24px;height:24px;cursor:pointer}
.pdf-opts{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin:.8rem 0}
.pdf-opt label{display:block;font-size:.85rem;font-weight:600;color:var(--ink-2);margin-bottom:.25rem}
.pdf-help{font-size:.78rem;margin:.2rem 0 0}
.pdf-actions{display:flex;gap:.6rem;flex-wrap:wrap;margin:.75rem 0}
.pdf-prog{margin:.6rem 0;font-size:.85rem;color:var(--muted)}
.pdf-bar{height:8px;background:var(--surface-2);border-radius:6px;overflow:hidden;margin-bottom:.3rem}
.pdf-bar i{display:block;height:100%;background:var(--accent);transition:width .2s}
.pdf-result{margin-top:.6rem}
.pdf-done{border-radius:14px;padding:1rem;display:flex;flex-direction:column;gap:.6rem;align-items:flex-start;background:color-mix(in srgb,var(--good) 10%,var(--surface))}
.pdf-done h3{margin:0;color:var(--good)}
.pdf-err{color:var(--bad);background:color-mix(in srgb,var(--bad) 10%,var(--surface));border-radius:10px;padding:.6rem .8rem}
.pdf-note{font-size:.8rem;margin-top:.6rem}
.pdf-preview{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.6rem;max-height:340px;overflow:auto}
.pdf-pre{white-space:pre-wrap;font-size:.8rem;font-family:var(--mono)}
.pdf-thumbs{display:flex;flex-wrap:wrap;gap:.6rem;margin:.6rem 0}
.pdf-thumb{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;cursor:grab}
.pdf-thumb img{display:block;width:110px;height:auto}
.pdf-thumb-bar{position:absolute;top:2px;right:2px;display:flex;gap:2px}
.pdf-thumb-bar button{border:0;border-radius:5px;background:rgba(0,0,0,.6);color:#fff;width:22px;height:22px;cursor:pointer;font-size:.75rem}
.pdf-thumb-n{position:absolute;bottom:2px;left:4px;font-size:.7rem;background:rgba(0,0,0,.55);color:#fff;padding:0 .3rem;border-radius:4px}
.pdf-cmp-row{margin:.8rem 0}
.pdf-cmp-h{font-weight:600;font-size:.85rem;margin-bottom:.3rem}
.pdf-cmp-imgs{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}
.pdf-cmp-imgs img{width:100%;border:1px solid var(--line);border-radius:6px}
.pdf-cmp-miss{display:flex;align-items:center;justify-content:center;color:var(--muted);border:1px dashed var(--line);border-radius:6px}
.pdf-redact-canvas,.pdf-edit-canvas{border:1px solid var(--line);margin:.4rem 0;max-width:100%;cursor:crosshair}
.pdf-edit-canvas{cursor:text}
.pdf-forms .pdf-opt,.pdf-sign .pdf-opt{margin:.5rem 0}
.pdf-ok,.media-ok{color:var(--good);font-weight:600;margin:.6rem 0}

/* ---------- Media tools and generators ---------- */
.media-card{border:1px solid var(--line);border-radius:14px;padding:1.1rem;background:var(--surface)}
.media-bar{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-bottom:.9rem}
.media-bar-r{margin-left:auto;display:flex;gap:.5rem;align-items:center}
.media-rows{display:flex;flex-direction:column;gap:.6rem;max-height:520px;overflow:auto}
.media-row{display:grid;grid-template-columns:1fr;gap:.4rem;border:1px solid var(--line);border-radius:10px;padding:.55rem;background:var(--surface-2)}
.media-times{display:flex;gap:.4rem;align-items:center}
.media-t{max-width:140px}
.media-arrow{color:var(--muted)}
.media-x{width:100%;resize:vertical;font-family:inherit}
.media-del{margin-left:auto;border:1px solid color-mix(in srgb,var(--bad) 40%,transparent);background:var(--surface);color:var(--bad);border-radius:8px;width:32px;height:32px;cursor:pointer;line-height:1}
.media-opt{display:flex;flex-direction:column;gap:.25rem;margin:.4rem 0}
.media-opt-l{font-weight:600;font-size:.92rem;color:var(--ink-2)}
.media-opt-h{font-size:.82rem}
.media-pre{margin-top:.8rem;max-height:280px;overflow:auto;background:var(--lcd);color:#D1D5DB;border-radius:10px;padding:.8rem;font-size:.82rem;white-space:pre-wrap;word-break:break-word}
.media-canvas-wrap{margin-top:.8rem;text-align:center}
.media-canvas-wrap canvas{max-width:100%;border:1px solid var(--line);border-radius:10px}
.gen-form{display:grid;gap:.75rem;grid-template-columns:1fr 1fr}
.gen-form .media-opt{margin:0}
.gen-bar{display:flex;gap:.5rem;margin:1rem 0}
.gen-out{display:flex;flex-direction:column;gap:.6rem;margin-top:.5rem}
.gen-res{display:flex;gap:.6rem;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:.7rem .8rem;background:var(--surface-2)}
.gen-res-tx{flex:1;white-space:pre-wrap;word-break:break-word;font-size:.95rem;line-height:1.5}
.gen-font-row{display:flex;gap:.6rem;align-items:center;border:1px solid var(--line);border-radius:10px;padding:.55rem .8rem;background:var(--surface)}
.gen-font-tx{flex:1;font-size:1.15rem;word-break:break-word}
.gen-copy{flex:0 0 auto;padding:.35rem .7rem!important;font-size:.8rem!important;min-height:0!important}
.gen-ai{display:inline-flex;align-items:center;gap:.35rem;margin-left:auto;font-size:.85rem;color:var(--muted);cursor:pointer}
.gen-ai input{width:16px;height:16px}
.gen-note{background:color-mix(in srgb,#D97706 12%,var(--surface));color:var(--warn);border-radius:8px;padding:.5rem .7rem;font-size:.85rem;margin-bottom:.6rem}
@media (max-width:767px){
  .filters,.two-col,.gen-form,.pdf-opts{grid-template-columns:minmax(0,1fr)}
  .sm-list{columns:1}
}

.byline a,.prose p a{color:var(--accent-ink);text-decoration:underline;text-underline-offset:2px}
.facts dd a{text-decoration:underline;text-underline-offset:2px}

.out-grid.long .out-val{font-size:1.05rem;line-height:1.35;overflow-wrap:anywhere}
.out-grid.long .out-card:first-child .out-val{font-size:1.3rem}
.dt-graph{margin-bottom:.8rem;padding:.6rem;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.dt-graph .legend{font:500 .85rem var(--mono)}

/* ---------- Responsive ---------- */
@media (max-width:1240px){.explore-cta{display:none}.search-btn{min-width:170px}}
@media (max-width:1099px){
  .primary{display:none}.menu-btn{display:inline-grid}
  .bar{height:60px}.actions{gap:.4rem}
  .search-btn{min-width:0;width:42px;padding:0;justify-content:center;font-size:1.05rem}.search-btn .search-label,.search-btn kbd{display:none}
  .search-btn.wide{width:100%;height:46px;justify-content:flex-start;padding-left:.8rem}.search-btn.wide .search-label{display:inline}
  .calc-layout{grid-template-columns:minmax(0,1fr)}
  aside{position:static}
  .article-wrap{grid-template-columns:minmax(0,1fr);gap:1.5rem}
  .toc{position:static;max-height:none;padding:1rem;background:var(--surface);border:1px solid var(--line);border-radius:14px}
  .tgrid,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cgrid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
  html{scroll-padding-top:120px}
}
@media (max-width:767px){
  .wrap,.container{padding-inline:16px}
  body{padding-bottom:68px}
  .hero-grid,.whyhow-grid{grid-template-columns:minmax(0,1fr)}
  .hero-preview{width:100%}
  .tpl-home .prose{columns:1}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .tgrid,.grid-4{grid-template-columns:minmax(0,1fr)}
  .tgrid .tcard{padding:.95rem}
  .cgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ccard{min-height:112px}
  .sec-head{align-items:flex-start}
  .ctx-home b{display:none}.ctx-home{padding-right:.6rem}
  .logo-svg{height:30px}
  .tabbar{position:fixed;left:0;right:0;bottom:0;z-index:45;display:grid;grid-template-columns:repeat(5,1fr);align-items:center;height:60px;padding-bottom:env(safe-area-inset-bottom);background:var(--surface);border-top:1px solid var(--line)}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:.12rem;font-size:.68rem;font-weight:500;color:var(--ink-2)}
  .tabbar a .ic{font-size:1.25rem}
  .tab-search{justify-self:center;display:grid;place-items:center;width:48px;height:48px;margin-top:-16px;border:0;border-radius:14px;background:var(--accent);color:#0F1217;font-size:1.3rem;box-shadow:0 3px 0 var(--accent-deep)}
  #dt-top{bottom:76px;right:14px;width:42px;height:42px}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:420px){.mgrid{grid-template-columns:minmax(0,1fr)}.calc-grid{grid-template-columns:minmax(0,1fr)}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important}}
@media print{.site-header,.tabbar,#dt-top,.toc,footer,aside{display:none!important}}