/* Indusheets shared design system: clean white catalogue look (home + kit pages).
   Brand colours from the logo: teal #00837C, amber #F9A310, ink #1E2A32. */
:root{
  --ink:#1E2A32;
  --steel:#5D6B70;
  --teal:#00837C;
  --teal-d:#00635E;
  --amber:#F9A310;
  --soft:#F4F7F6;
  --tint:#E8F4F3;
  --line:#E1E7E5;
  --r:14px;
  --display:"Archivo", "Arial Narrow", Arial, sans-serif;
  --body:"IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --mono:"IBM Plex Mono", Consolas, monospace;
  color-scheme: light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:#fff;color:var(--ink);font:400 16px/1.6 var(--body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.05;letter-spacing:-.015em}
.mono{font-family:var(--mono)}

/* header */
header.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;text-decoration:none;line-height:0}
.logo img{height:36px;width:auto}
footer .logo img{height:34px}
nav.main{display:flex;gap:24px;margin-left:auto}
nav.main a{color:var(--steel);text-decoration:none;font-size:14.5px;font-weight:500}
nav.main a:hover,nav.main a[aria-current]{color:var(--ink)}
.lang{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang button{background:none;border:0;color:var(--steel);font:500 12px var(--mono);padding:6px 9px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--amber);color:var(--ink)}
@media (max-width:860px){nav.main{display:none}.lang{margin-left:auto}}
@media (max-width:600px){header.top .wrap{gap:10px}.logo img{height:28px}header .btn{padding:8px 11px!important;font-size:13px!important}.lang button{padding:5px 7px}}

/* buttons, pills */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px var(--body);text-decoration:none;padding:14px 22px;border:0;border-radius:10px;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000;transform:translateY(-1px);box-shadow:0 6px 18px rgba(30,42,50,.18)}
.btn-amber{background:var(--amber);color:var(--ink)}
.btn-amber:hover{background:#FFB22E;transform:translateY(-1px);box-shadow:0 6px 18px rgba(249,163,16,.35)}
.btn-ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn-ghost:hover{background:var(--soft)}
header .btn{padding:9px 16px;font-size:14px;white-space:nowrap}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:600 12px/1 var(--body);letter-spacing:.08em;text-transform:uppercase;color:var(--teal);background:var(--tint);padding:7px 12px;border-radius:99px}

/* sections */
.section{padding:88px 0}
.section.alt{background:var(--soft)}
.section h2{font-size:clamp(30px,3.6vw,46px);font-weight:800;margin:14px 0 14px}
.section .sub{font-size:18px;color:var(--steel);max-width:58ch;margin:0}
.center{text-align:center}.center .sub{margin:0 auto}
@media (max-width:600px){.section{padding:64px 0}}

/* hero */
.h-hero{padding:72px 0 64px;background:radial-gradient(900px 420px at 85% 10%,var(--tint),transparent 70%),#fff;overflow:hidden}
.h-hero .wrap{display:grid;grid-template-columns:1fr 1.08fr;gap:56px;align-items:center}
.h-hero h1{font-size:clamp(40px,4.6vw,62px);font-weight:900;line-height:1.02;margin:20px 0 20px}
.h-hero h1 em{font-style:normal;color:var(--teal)}
.h-hero .lead{font-size:19px;color:var(--steel);max-width:31em;margin:0 0 30px}
.checks{display:flex;flex-wrap:wrap;gap:10px 22px;margin:28px 0 0;padding:0;list-style:none;font-size:14px;font-weight:500}
.checks li{display:flex;align-items:center;gap:8px}
.checks li::before{content:"";flex:none;width:18px;height:18px;border-radius:50%;background:var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.5 2.5L14 7.5' stroke='%2300837C' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") center/18px no-repeat}
@media (max-width:960px){.h-hero .wrap{grid-template-columns:1fr}}

/* product mock-up: an Excel-style window */
.mock{position:relative;padding:0 0 70px 0}
.window{background:#fff;border-radius:12px;box-shadow:0 30px 70px -20px rgba(30,42,50,.35),0 0 0 1px rgba(30,42,50,.08);overflow:hidden}
.window .bar{display:flex;align-items:center;gap:6px;padding:10px 14px;background:#F0F3F2;border-bottom:1px solid var(--line)}
.window .bar i{width:10px;height:10px;border-radius:50%;background:#D5DCDA}
.window .bar span{margin-left:10px;font:500 12px var(--mono);color:var(--steel);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.window .bar .xl{margin-left:auto;font:700 10px var(--body);color:#fff;background:#1D6F42;border-radius:4px;padding:2px 6px}
.mock .window > img{height:330px;width:100%;object-fit:cover;object-position:top left}
.mock .float{position:absolute;left:-36px;bottom:0;width:72%;border-radius:10px;box-shadow:0 20px 50px -12px rgba(30,42,50,.35),0 0 0 1px rgba(30,42,50,.08);background:#fff;padding:6px}
.mock .float img{border-radius:6px}
.mock .badge{position:absolute;right:-10px;bottom:26px;background:var(--amber);color:var(--ink);font:700 13px/1.25 var(--body);padding:12px 14px;border-radius:12px;box-shadow:0 12px 30px -10px rgba(30,42,50,.4);max-width:180px}
.mock .badge small{display:block;font-weight:500;font-size:12px}
@media (max-width:960px){.mock{margin:0 8px}.mock .float{left:-8px}}
@media (max-width:600px){.mock .window > img{height:auto}.mock .badge{display:none}.mock .float{width:85%}}

/* trust strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.strip .it{display:flex;gap:12px;align-items:center;padding:22px 18px;border-left:1px solid var(--line)}
.strip .it:first-child{border-left:0}
.ic{flex:none;width:40px;height:40px;border-radius:10px;background:var(--tint);display:grid;place-items:center;color:var(--teal)}
.strip b{display:block;font-size:15px}
.strip span{font-size:13px;color:var(--steel)}
@media (max-width:900px){.strip .wrap{grid-template-columns:1fr 1fr}.strip .it:nth-child(3){border-left:0}.strip .it:nth-child(n+3){border-top:1px solid var(--line)}}
@media (max-width:520px){.strip .wrap{grid-template-columns:1fr}.strip .it{border-left:0!important;border-top:1px solid var(--line)}.strip .it:first-child{border-top:0}}

/* kit catalogue cards */
.cat-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chips button{font:500 14px var(--body);color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:99px;padding:9px 16px;cursor:pointer}
.chips button:hover{border-color:var(--teal)}
.chips button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -18px rgba(30,42,50,.3)}
.card[hidden]{display:none}
.thumb{aspect-ratio:16/10;background:var(--soft);border-bottom:1px solid var(--line);position:relative;overflow:hidden;display:block}
.thumb img{width:100%;height:100%;object-fit:cover;object-position:top left}
.thumb svg{width:100%;height:100%;display:block}
.thumb .tag{position:absolute;top:12px;left:12px;font:600 11px var(--body);letter-spacing:.04em;padding:5px 10px;border-radius:99px;background:var(--teal);color:#fff}
.thumb .tag.soon{background:#fff;color:var(--ink);box-shadow:0 0 0 1px var(--line)}
.card .bd{padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .kind{font:600 12px var(--body);color:var(--teal);text-transform:uppercase;letter-spacing:.06em}
.card h3{font-size:21px;font-weight:800}
.card p{margin:0;font-size:14.5px;color:var(--steel)}
.card .ft{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.card .files{display:flex;gap:6px}
.card .files span{font:500 11px var(--mono);border:1px solid var(--line);border-radius:6px;padding:3px 6px;color:var(--steel)}
.card .pr{font:800 22px var(--display)}
.card .pr small{font:500 12px var(--body);color:var(--steel)}
.card .go{font-weight:600;font-size:14.5px;text-decoration:none}
.card .go:hover{text-decoration:underline}
.card.live{border-color:var(--teal);box-shadow:0 0 0 1px var(--teal)}
@media (max-width:1100px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}

/* numbered steps */
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px;text-align:left}
.steps3 > div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.steps3 .n{width:38px;height:38px;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font:700 16px var(--display);margin-bottom:16px}
.steps3 > div:nth-child(2) .n{background:var(--teal)}
.steps3 > div:nth-child(3) .n{background:var(--amber);color:var(--ink)}
.steps3 .t{font:500 12px var(--mono);color:var(--steel);margin-bottom:4px}
.steps3 h3{font-size:20px;font-weight:800;margin-bottom:6px}
.steps3 p{margin:0;color:var(--steel);font-size:15px}
@media (max-width:820px){.steps3{grid-template-columns:1fr}}

/* feature tiles (problems, workbook tabs) */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.tile .ic{margin-bottom:16px}
.tile h3{font-size:19px;font-weight:800;margin-bottom:6px}
.tile p{margin:0;color:var(--steel);font-size:15px}
.tile.warn .ic{background:#FFF3DE;color:#B86E00}
.tiles.four{grid-template-columns:repeat(4,1fr)}
.tile .no{font:600 12px var(--mono);color:var(--teal);margin-bottom:10px;display:block}
@media (max-width:1000px){.tiles.four{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.tiles{grid-template-columns:1fr}}
@media (max-width:560px){.tiles.four{grid-template-columns:1fr}}

/* screenshots row */
.shots{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:40px}
.shots figure{margin:0}
.shots figcaption{font-size:15px;color:var(--steel);margin-top:14px}
.shots figcaption b{color:var(--ink)}
@media (max-width:820px){.shots{grid-template-columns:1fr}}

/* comparison table */
.tablewrap{overflow-x:auto;margin-top:40px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table.cmp{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
.cmp th,.cmp td{text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);vertical-align:top}
.cmp tr:last-child th,.cmp tr:last-child td{border-bottom:0}
.cmp thead th{font:600 13px var(--body);text-transform:uppercase;letter-spacing:.05em;color:var(--steel);background:var(--soft)}
.cmp thead th:nth-child(2){color:var(--teal)}
.cmp td:nth-child(2){background:#F3FAF9;font-weight:600}
.cmp tbody th{font-weight:600}

/* pricing */
.pricing{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:stretch;margin-top:40px}
.price-card{background:#fff;border:2px solid var(--ink);border-radius:18px;padding:32px;display:flex;flex-direction:column;gap:16px;box-shadow:0 24px 50px -24px rgba(30,42,50,.35)}
.price{font:900 60px/1 var(--display)}
.price small{font:500 15px var(--body);color:var(--steel)}
.price-card ul,.incl ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.price-card li,.incl li{padding-left:28px;position:relative;font-size:15px}
.price-card li::before,.incl li::before{content:"";position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;background:var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.5 2.5L14 7.5' stroke='%2300837C' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") center/18px no-repeat}
.licence-switch{display:inline-flex;background:var(--soft);border-radius:10px;padding:4px;width:max-content;max-width:100%}
.licence-switch button{border:0;background:none;font:600 14px var(--body);padding:9px 16px;cursor:pointer;color:var(--steel);border-radius:8px}
.licence-switch button[aria-pressed="true"]{background:#fff;color:var(--ink);box-shadow:0 1px 4px rgba(30,42,50,.15)}
.price-card .btn{width:100%;padding:16px}
.price-card .note{margin:0;font-size:13px;color:var(--steel);text-align:center}
.incl{background:var(--soft);border-radius:18px;padding:32px;display:flex;flex-direction:column;gap:16px}
.incl h3{font-size:20px;font-weight:800}
.incl .files{display:grid;gap:10px}
.incl .file{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px}
.incl .file b{display:block;font-size:14px}
.incl .file span{color:var(--steel);font-size:13px}
.incl .file .ext{flex:none;font:700 10px/1 var(--body);color:#fff;border-radius:5px;padding:6px 7px;min-width:40px;text-align:center}
.ext.x{background:#1D6F42}.ext.p{background:#C4372C}
@media (max-width:860px){.pricing{grid-template-columns:1fr}}

/* founder note */
.maker{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;max-width:920px;margin:0 auto}
.avatar{width:150px;height:150px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--teal-d));color:#fff;display:grid;place-items:center;font:900 46px var(--display);box-shadow:0 0 0 8px var(--tint)}
.maker blockquote{margin:16px 0 0;font:600 clamp(20px,2.2vw,26px)/1.35 var(--display);letter-spacing:-.01em}
.maker p{color:var(--steel);margin:16px 0 0}
.maker .sig{margin-top:16px;font-weight:600}
.maker .sig span{display:block;font-weight:400;color:var(--steel);font-size:14px}
@media (max-width:700px){.maker{grid-template-columns:1fr;justify-items:start}.avatar{width:96px;height:96px;font-size:30px}}

/* dark band (signup / final call) */
.band{background:var(--ink);color:#fff;border-radius:22px;padding:52px;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:var(--teal);opacity:.35;pointer-events:none}
.band h2{color:#fff;margin-top:14px;font-size:clamp(28px,3vw,38px)}
.band p{color:#C8D3D1;margin:0}
.band .eyebrow{background:rgba(249,163,16,.18);color:var(--amber)}
.band form,.band .cta{position:relative;z-index:1}
.band .signup input{border:0}
.band .formnote{color:var(--amber)}
.band small{display:block;color:#93A3A8;margin-top:8px;font-size:13px}
@media (max-width:860px){.band{grid-template-columns:1fr;padding:34px 22px}}

/* signup form */
.signup{display:flex;gap:10px;flex-wrap:wrap}
.signup input{flex:1 1 220px;padding:13px 14px;border:1.5px solid var(--line);border-radius:10px;font:400 15px var(--body);background:#fff;color:var(--ink)}
.signup small{flex-basis:100%}
.formnote{font-size:13px;color:var(--teal);min-height:1.2em;margin:6px 0 0;flex-basis:100%}

/* FAQ */
.faq{max-width:780px;margin:40px auto 0;text-align:left}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:10px}
details summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font:500 20px/1 var(--mono);color:var(--teal)}
details[open] summary::after{content:"−"}
details p{margin:10px 0 0;color:var(--steel);max-width:70ch}

/* footer */
footer{background:var(--ink);color:#C8D3D1;padding:40px 0 30px;font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
footer a{color:#fff}
footer .legal{font:400 12px var(--mono);color:#93A3A8}

/* language display + entrance */
[data-lang-show]{display:none}
html[lang="en"] [data-lang-show="en"], html[lang="fr"] [data-lang-show="fr"]{display:block}
html[lang="en"] span[data-lang-show="en"], html[lang="fr"] span[data-lang-show="fr"]{display:inline}
.reveal{animation:rise .6s ease both}
.reveal.d2{animation-delay:.12s}.reveal.d3{animation-delay:.24s}
@keyframes rise{from{transform:translateY(14px)}to{transform:none}}