/* DEWATERING.COM.VN — Knowledge hub demo · style.css */
:root{
  --bg:#f8f8f4; --surface:#ffffff; --ink:#15232d; --ink-2:#3c4a55; --muted:#66757f;
  --line:#dfe4e2; --line-2:#eceeeb;
  --navy:#0a3550; --navy-2:#0f4a6b; --water:#1b7ba3; --water-soft:#e6f1f6;
  --graphite:#2f3b44; --cake:#a9702f; --cake-soft:#f5ecdf;
  --ok:#2c7a55; --warn:#a35b0d;
  --r:10px; --r-lg:16px;
  --shadow:0 1px 2px rgba(10,53,80,.05),0 6px 18px -10px rgba(10,53,80,.14);
  --shadow-hover:0 2px 4px rgba(10,53,80,.06),0 14px 28px -12px rgba(10,53,80,.22);
  --f-head:'Manrope','Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --wrap:1200px; --hdr:72px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr) + 56px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--f-body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--water);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--f-head);color:var(--navy);line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
h4{font-size:1rem;font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.en{font-weight:500;color:var(--muted);font-size:.86em;letter-spacing:0}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid #f2b24a;outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:6px;z-index:200}
.skip:focus{left:8px}
.ico{width:1.25em;height:1.25em;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);height:var(--hdr);transition:box-shadow .25s}
.site-header.scrolled{box-shadow:0 6px 20px -14px rgba(10,53,80,.5)}
.hdr{display:flex;align-items:center;gap:22px;height:var(--hdr)}
.logo{display:flex;align-items:center;gap:10px;font:800 1.02rem var(--f-head);color:var(--navy);letter-spacing:.01em;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo svg{width:32px;height:32px}
.logo small{display:block;font:500 .62rem var(--f-body);color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-top:1px}
.nav{display:flex;gap:2px;margin-left:auto}
.nav>li{list-style:none;position:static}
.nav-item{position:relative;display:flex;align-items:stretch;height:var(--hdr)}
.nav-item::after{content:"";position:absolute;left:10px;right:26px;bottom:0;height:3px;background:var(--water);transform:scaleX(0);transition:transform .2s}
.nav>li.open .nav-item::after,.nav>li.cur .nav-item::after{transform:scaleX(1)}
.nav-link{display:flex;align-items:center;height:100%;padding:0 2px 0 10px;background:none;border:0;white-space:nowrap;font:700 .74rem var(--f-head);letter-spacing:.04em;text-transform:uppercase;color:var(--graphite);cursor:pointer}
.nav-link:hover,.nav>li.open .nav-link{color:var(--water);text-decoration:none}
.nav-toggle{display:flex;align-items:center;justify-content:center;height:100%;width:26px;padding:0;background:none;border:0;color:var(--graphite);cursor:pointer}
.nav-toggle:hover,.nav>li.open .nav-toggle{color:var(--water)}
.nav .chev{width:.9em;height:.9em;transition:transform .2s}
.nav>li.open .chev{transform:rotate(180deg)}
.nav>li:focus-within .mega{opacity:1;visibility:visible;transform:none}
.mega{position:absolute;left:0;right:0;top:var(--hdr);background:#fff;border-bottom:1px solid var(--line);box-shadow:0 24px 40px -24px rgba(10,53,80,.35);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s,transform .18s,visibility .18s}
.nav>li.open .mega{opacity:1;visibility:visible;transform:none}
.mega-in{padding-top:22px;padding-bottom:26px}
.mega ul{columns:3;column-gap:32px;list-style:none}
.mega li{break-inside:avoid}
.mega li a{display:block;padding:8px 12px;margin:0 -12px;border-radius:6px;color:var(--ink);font-weight:500;font-size:.95rem}
.mega li a:hover{background:var(--water-soft);color:var(--navy);text-decoration:none}
.search-btn,.burger{display:inline-flex;align-items:center;justify-content:center;height:42px;border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--graphite);cursor:pointer;font:500 .88rem var(--f-body);gap:8px}
.search-btn{padding:0 12px 0 14px;min-width:150px;justify-content:flex-start;color:var(--muted)}
.search-btn kbd{margin-left:auto;font:600 .7rem var(--f-body);border:1px solid var(--line);border-radius:4px;padding:1px 6px;color:var(--muted)}
.search-btn:hover{border-color:var(--water);color:var(--navy)}
.burger{display:none;width:42px}
.search-panel{position:fixed;inset:0;background:rgba(10,30,44,.55);z-index:150;display:none;padding:12vh 16px 0;align-items:flex-start;justify-content:center}
.search-panel.open{display:flex}
.search-box{width:min(680px,100%);background:#fff;border-radius:var(--r-lg);box-shadow:0 30px 80px -20px rgba(0,0,0,.5);overflow:hidden}
.search-box label{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}
.search-box input{flex:1;border:0;outline:0;font:500 1.1rem var(--f-body);color:var(--ink);background:none;min-width:0}
.search-res{max-height:52vh;overflow:auto;list-style:none;padding:6px}
.search-res a{display:flex;gap:12px;align-items:baseline;padding:10px 14px;border-radius:8px;color:var(--ink)}
.search-res a:hover,.search-res a.act{background:var(--water-soft);text-decoration:none}
.search-res .tag{font:700 .66rem var(--f-head);letter-spacing:.06em;text-transform:uppercase;color:var(--water);min-width:92px}
.search-hint{padding:10px 20px 16px;font-size:.85rem;color:var(--muted)}
.search-hint button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:3px 11px;margin:4px 4px 0 0;font:500 .82rem var(--f-body);cursor:pointer;color:var(--ink-2)}
.search-hint button:hover{border-color:var(--water);color:var(--water)}
@media (max-width:1080px){
  .nav{position:fixed;left:0;right:0;top:var(--hdr);bottom:0;background:#fff;flex-direction:column;margin:0;padding:8px 20px 40px;overflow:auto;display:none;gap:0}
  .nav.open{display:flex}
  .nav>li{border-bottom:1px solid var(--line-2)}
  .nav-item{height:56px;width:100%}
  .nav-item::after{display:none}
  .nav-link{flex:1;font-size:.88rem;padding:0}
  .nav-toggle{width:44px}
  .mega{position:static;box-shadow:none;border:0;opacity:1;visibility:visible;transform:none;display:none}
  .nav>li.open .mega{display:block}
  .mega-in{padding:0 0 14px}
  .mega ul{columns:1}
  .burger{display:inline-flex;margin-left:auto}
  .search-btn{min-width:0;padding:0 14px}
  .search-btn span,.search-btn kbd{display:none}
  .search-btn{width:42px;padding:0;justify-content:center}
  .hdr{gap:10px}
}
@media (max-width:420px){.logo small{display:none}}

/* ---------- Buttons / chips ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;border:1.5px solid var(--navy);background:var(--navy);color:#fff;font:700 .92rem var(--f-head);cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:var(--navy-2);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--navy)}
.btn.ghost:hover{background:var(--water-soft)}
.btn.light{background:#fff;color:var(--navy);border-color:#fff}
.btn.light.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn.light.ghost:hover{background:rgba(255,255,255,.12)}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font:600 .78rem var(--f-body);color:var(--ink-2);cursor:pointer}
a.chip:hover,button.chip:hover{border-color:var(--water);color:var(--water);text-decoration:none}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.chip.demo{background:var(--cake-soft);border-color:#e6d2b3;color:#7b4c16;cursor:default}
.chip.real{background:#e4f2ea;border-color:#bcdccb;color:#1f5d3f;cursor:default}

/* ---------- Layout blocks ---------- */
section{position:relative}
.sec{padding:84px 0}
.sec.tight{padding:56px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.sec.dark{background:var(--navy);color:#dbe8ef}
.sec.dark h2,.sec.dark h3{color:#fff}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font:800 .72rem var(--f-head);letter-spacing:.12em;text-transform:uppercase;color:var(--water);margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.dark .eyebrow{color:#8fd0ec}
.sec-head{max-width:720px;margin-bottom:38px}
.sec-head p{color:var(--ink-2);font-size:1.05rem}
.sec-head.row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.sec-head.row>div{max-width:680px}
.link-arrow{font:700 .9rem var(--f-head);display:inline-flex;align-items:center;gap:6px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g6{grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g2,.g3,.g4,.g6{grid-template-columns:1fr}.sec{padding:56px 0}.wrap{padding:0 18px}}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column;transition:transform .22s,box-shadow .22s,border-color .22s;color:var(--ink)}
a.card:hover,.card.hov:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#c9d6dc;text-decoration:none}
.card h3{margin-bottom:.4em}
.card p{color:var(--ink-2);font-size:.95rem;margin-bottom:.8em}
.card .more{margin-top:auto;font:700 .86rem var(--f-head);color:var(--water);display:inline-flex;gap:6px;align-items:center}
.card .ico-badge{width:44px;height:44px;border-radius:10px;background:var(--water-soft);color:var(--navy);display:grid;place-items:center;margin-bottom:16px}
.card .ico-badge .ico{width:24px;height:24px}
.card .num{font:800 .78rem var(--f-head);color:var(--muted);letter-spacing:.08em;margin-bottom:8px}

/* ---------- Hero ---------- */
.hero{padding:64px 0 72px;background:linear-gradient(180deg,#fff 0,var(--bg) 100%);border-bottom:1px solid var(--line-2);overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center}
.hero h1{margin-bottom:.4em}
.hero h1 em{font-style:normal;color:var(--water)}
.hero .lead{font-size:1.14rem;color:var(--ink-2);max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 30px}
.hero-facts{display:flex;gap:28px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}
.hero-facts b{display:block;font:800 1.7rem var(--f-head);color:var(--navy)}
.hero-facts span{font-size:.82rem;color:var(--muted)}
.viz{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:18px 18px 12px}
.viz-bar{display:flex;justify-content:space-between;align-items:center;font:600 .74rem var(--f-body);color:var(--muted);margin-bottom:8px;letter-spacing:.04em;text-transform:uppercase}
.viz-bar i{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block;margin-right:6px}
.viz svg{width:100%;height:auto}
.viz-note{font-size:.74rem;color:var(--muted);margin-top:6px}
@media (max-width:920px){.hero-in{grid-template-columns:1fr;gap:32px}.hero{padding:40px 0 48px}}

/* ---------- Page head / breadcrumb ---------- */
.page-head{background:#fff;border-bottom:1px solid var(--line-2);padding:26px 0 40px}
.crumb{font-size:.84rem;color:var(--muted);margin-bottom:22px}
.crumb ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0}
.crumb li+li::before{content:"/";margin-right:6px;color:#b3bdc2}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--water)}
.page-head .lead{font-size:1.1rem;color:var(--ink-2);max-width:760px;margin:0}
.page-head h1{max-width:900px}
.subnav{position:sticky;top:var(--hdr);z-index:40;background:rgba(248,248,244,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:thin}
.subnav a{white-space:nowrap;padding:6px 13px;border-radius:999px;font:600 .82rem var(--f-body);color:var(--ink-2);border:1px solid transparent}
.subnav a:hover{background:#fff;border-color:var(--line);text-decoration:none}
.subnav a.on{background:var(--navy);color:#fff}

/* ---------- Hub sections ---------- */
.hub-sec{padding:52px 0;border-bottom:1px solid var(--line-2)}
.hub-sec:last-of-type{border-bottom:0}
.hub-grid{display:grid;grid-template-columns:260px 1fr;gap:44px}
.hub-grid>header h2{font-size:1.5rem;margin-bottom:.3em}
.hub-grid>header .en{display:block}
.hub-body>p{font-size:1.02rem;color:var(--ink-2);max-width:760px}
.points{list-style:none;margin:14px 0 18px;display:grid;gap:8px;max-width:760px}
.points li{display:flex;gap:10px;color:var(--ink-2);font-size:.96rem}
.points li::before{content:"";flex:none;width:7px;height:7px;margin-top:.62em;background:var(--water);border-radius:2px;transform:rotate(45deg)}
.kids{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:18px 0}
.kid{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;transition:border-color .2s,transform .2s}
.kid:hover{border-color:#c2d3db;transform:translateY(-2px)}
.kid h3{font-size:1rem;margin-bottom:.3em}
.kid p{font-size:.88rem;color:var(--ink-2);margin:0}
.rel{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:16px}
.rel>span{font:800 .68rem var(--f-head);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-right:4px}
@media (max-width:900px){.hub-grid{grid-template-columns:1fr;gap:14px}}

/* ---------- Tables ---------- */
.tscroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin:18px 0;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.92rem}
caption{caption-side:top;text-align:left;padding:12px 16px 4px;font:700 .82rem var(--f-head);color:var(--muted);letter-spacing:.04em}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line-2);vertical-align:top}
thead th{background:#f1f5f6;font:800 .72rem var(--f-head);letter-spacing:.07em;text-transform:uppercase;color:var(--graphite);white-space:nowrap}
tbody th{font-weight:700;color:var(--navy);white-space:nowrap}
tbody tr:last-child>*{border-bottom:0}
tbody tr:hover{background:#fbfcfc}
.tnote{font-size:.8rem;color:var(--muted);margin:-8px 0 16px}

/* ---------- Process flow ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;counter-reset:f}
.flow .step{position:relative;padding:22px 18px 22px;background:#fff;border:1px solid var(--line);border-left:0;transition:background .2s}
.flow .step:first-child{border-left:1px solid var(--line);border-radius:var(--r) 0 0 var(--r)}
.flow .step:last-child{border-radius:0 var(--r) var(--r) 0}
.flow .step::after{content:"";position:absolute;right:-11px;top:50%;width:20px;height:20px;background:#fff;border-top:1px solid var(--line);border-right:1px solid var(--line);transform:translateY(-50%) rotate(45deg);z-index:2;transition:background .2s}
.flow .step:last-child::after{display:none}
.flow .step:hover,.flow .step:hover::after{background:var(--water-soft)}
.flow .step.hl{background:var(--cake-soft)}
.flow .step.hl::after{background:var(--cake-soft)}
.flow .k{font:800 .7rem var(--f-head);letter-spacing:.1em;color:var(--water);text-transform:uppercase}
.flow h3{font-size:1.05rem;margin:.3em 0 .4em}
.flow p{font-size:.86rem;color:var(--ink-2);margin:0}
.flow .ico{width:28px;height:28px;color:var(--navy);margin-bottom:10px}
@media (max-width:900px){
  .flow{grid-template-columns:1fr}
  .flow .step,.flow .step:first-child,.flow .step:last-child{border:1px solid var(--line);border-top:0;border-radius:0}
  .flow .step:first-child{border-top:1px solid var(--line);border-radius:var(--r) var(--r) 0 0}
  .flow .step:last-child{border-radius:0 0 var(--r) var(--r)}
  .flow .step::after{right:auto;left:30px;top:auto;bottom:-11px;transform:rotate(135deg)}
}

/* ---------- Tech card ---------- */
.tech .illus{background:var(--water-soft);border-radius:8px;height:120px;margin:-8px -8px 16px;display:grid;place-items:center;color:var(--navy);overflow:hidden}
.tech .illus svg{height:96px;width:auto}
.tech .illus.img{background:#eef2f2}
.tech .illus.img img{width:100%;height:100%;object-fit:cover}
.tech .illus.img.contain img{object-fit:contain;padding:10px}
.tech .meta{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 14px}
.tech .meta span{font:600 .72rem var(--f-body);color:var(--ink-2);background:var(--line-2);padding:2px 9px;border-radius:999px}

/* ---------- Case card ---------- */
.case .swatch{height:8px;border-radius:4px;margin-bottom:16px;background:repeating-linear-gradient(90deg,var(--cake) 0 18px,#c99259 18px 26px)}
.case .tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.case h3{font-size:1.06rem}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:8px 0 16px;border-top:1px solid var(--line-2);padding-top:14px}
.stats b{display:block;font:800 1.25rem var(--f-head);color:var(--navy);font-variant-numeric:tabular-nums}
.stats span{font-size:.72rem;color:var(--muted);line-height:1.3;display:block}
.stats.txt b{font-size:.92rem;line-height:1.3}

/* ---------- Handbook block ---------- */
.handbook{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.handbook h2{color:#fff}
.handbook p{color:#c8dae4}
.chapters{display:grid;grid-template-columns:1fr 1fr;gap:10px;list-style:none;counter-reset:c}
.chapters li{counter-increment:c;display:flex;gap:12px;align-items:center;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:11px 14px;font:600 .9rem var(--f-head);color:#fff;transition:background .2s}
.chapters li:hover{background:rgba(255,255,255,.14)}
.chapters li::before{content:counter(c,decimal-leading-zero);font:800 .78rem var(--f-head);color:#8fd0ec}
@media (max-width:900px){.handbook{grid-template-columns:1fr;gap:28px}}
@media (max-width:480px){.chapters{grid-template-columns:1fr}}

/* ---------- Application ---------- */
.app{padding:20px}
.app .ico-badge{margin-bottom:12px !important}
.app h3{font-size:1rem;margin:0 0 .25em}
.app p{font-size:.86rem;margin:0}
.card.app figure.photo{margin:-8px -8px 14px;border:0;border-radius:8px 8px 0 0;overflow:hidden}
.card.app figure.photo img{height:128px;object-fit:cover;aspect-ratio:auto}
.card.app figure.photo figcaption{display:none}

/* ---------- Glossary ---------- */
.gloss{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:36px}
.gloss-cat{font-size:1.15rem;margin:0 0 14px;padding-top:6px;scroll-margin-top:140px}
.term{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;scroll-margin-top:140px}
.term:target{border-color:var(--water);box-shadow:0 0 0 3px var(--water-soft)}
.term h3{font-size:1.05rem;margin:0 0 .25em}
.term .abbr{font:700 .72rem var(--f-head);letter-spacing:.08em;color:var(--water);text-transform:uppercase}
.term p{font-size:.9rem;color:var(--ink-2);margin:.3em 0 0}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:0 0 24px}
.filter-bar input[type=search]{flex:1;min-width:220px;padding:11px 16px;border:1px solid var(--line);border-radius:999px;font:500 .95rem var(--f-body);background:#fff}
.filter-bar input:focus{outline:2px solid var(--water);border-color:transparent}
.empty{display:none;padding:24px;color:var(--muted);text-align:center;border:1px dashed var(--line);border-radius:var(--r)}

/* ---------- Article ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:44px 0 72px}
.article{max-width:740px}
.article h2{font-size:1.55rem;margin-top:1.8em}
.article h3{margin-top:1.4em}
.article p,.article li{font-size:1.04rem;color:#26343f}
.article ul,.article ol{padding-left:1.2em;margin:0 0 1em}
.article li{margin-bottom:.35em}
.meta-line{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;color:var(--muted);font-size:.86rem;margin-top:18px}
.callout{background:var(--water-soft);border-left:4px solid var(--water);border-radius:0 var(--r) var(--r) 0;padding:16px 20px;margin:22px 0;font-size:.97rem;color:var(--ink)}
.callout.warn{background:var(--cake-soft);border-color:var(--cake)}
.callout b{color:var(--navy)}
.formula{font:600 1rem/1.5 ui-monospace,Consolas,monospace;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;margin:16px 0;overflow-x:auto}
.aside{position:sticky;top:calc(var(--hdr) + 24px);align-self:start;display:grid;gap:18px}
.aside .box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.aside h4{font:800 .7rem var(--f-head);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.aside ul{list-style:none;display:grid;gap:6px;font-size:.9rem}
.aside a{color:var(--ink-2)}
.aside a:hover{color:var(--water)}
@media (max-width:980px){.article-wrap{grid-template-columns:1fr}.aside{position:static}}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:10px;max-width:820px}
details{background:#fff;border:1px solid var(--line);border-radius:var(--r);transition:border-color .2s}
details[open]{border-color:#bcd3de}
summary{cursor:pointer;list-style:none;padding:16px 52px 16px 20px;font:700 1rem var(--f-head);color:var(--navy);position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;border-right:2px solid var(--water);border-bottom:2px solid var(--water);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details>div{padding:0 20px 18px;color:var(--ink-2);font-size:.96rem}
details>div p:last-child{margin:0}

/* ---------- Case detail ---------- */
.case-hero{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--navy);border-radius:var(--r-lg);color:#fff;overflow:hidden;margin:28px 0}
.case-hero div{padding:22px 24px;border-right:1px solid rgba(255,255,255,.14)}
.case-hero div:last-child{border:0}
.case-hero b{display:block;font:800 2rem var(--f-head);line-height:1.1;font-variant-numeric:tabular-nums}
.case-hero span{font-size:.82rem;color:#b9d0dc}
@media (max-width:760px){.case-hero{grid-template-columns:1fr 1fr}.case-hero div:nth-child(2){border-right:0}.case-hero div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.14)}}
.dossier{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;margin:24px 0}
.dossier>div{display:grid;grid-template-columns:200px 1fr;border-bottom:1px solid var(--line-2)}
.dossier>div:last-child{border:0}
.dossier dt{padding:14px 18px;background:#f4f7f7;font:800 .72rem var(--f-head);letter-spacing:.08em;text-transform:uppercase;color:var(--graphite)}
.dossier dd{margin:0;padding:14px 18px;font-size:.96rem}
@media (max-width:640px){.dossier>div{grid-template-columns:1fr}.dossier dt{padding-bottom:6px}}
.trail{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0 0 18px;padding:0}
.trail li{font:700 .74rem var(--f-head);letter-spacing:.04em;padding:5px 12px;border-radius:999px;background:var(--water-soft);color:var(--navy)}
.trail li+li::before{content:"→";margin-right:8px;color:var(--water)}

/* ---------- Handbook page ---------- */
.journey{display:grid;gap:16px;counter-reset:j}
.chap{display:grid;grid-template-columns:72px 1fr auto;gap:22px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;scroll-margin-top:140px;transition:box-shadow .2s,border-color .2s}
.chap:hover{box-shadow:var(--shadow-hover);border-color:#c2d3db}
.chap .n{font:800 2.2rem var(--f-head);color:#b9cfda;line-height:1}
.chap h3{margin-bottom:.3em}
.chap p{color:var(--ink-2);font-size:.95rem;margin-bottom:.6em}
.chap .q{font-size:.86rem;color:var(--muted)}
.chap .q b{color:var(--navy)}
@media (max-width:700px){.chap{grid-template-columns:48px 1fr}.chap>.chips{grid-column:1/-1}.chap .n{font-size:1.6rem}}

/* ---------- Selector tool ---------- */
.tool{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1fr;gap:32px}
.tool label{display:block;font:700 .82rem var(--f-head);color:var(--navy);margin:0 0 6px}
.tool select,.tool input,.tool textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font:500 .95rem var(--f-body);background:#fff;color:var(--ink);margin-bottom:16px}
.tool select:focus,.tool input:focus,.tool textarea:focus{outline:2px solid var(--water);border-color:transparent}
.tool-out{background:var(--bg);border:1px dashed #c9d4d8;border-radius:var(--r);padding:20px;font-size:.94rem}
.tool-out h4{margin-bottom:.5em}
.tool-out ul{padding-left:1.1em}
@media (max-width:820px){.tool{grid-template-columns:1fr;padding:20px}}

/* ---------- CTA / Footer ---------- */
.cta{background:linear-gradient(135deg,var(--navy) 0,var(--navy-2) 100%);color:#fff;border-radius:var(--r-lg);padding:56px 48px;display:flex;justify-content:space-between;gap:32px;align-items:center;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 .3em;max-width:640px}
.cta p{color:#c8dae4;margin:0;max-width:560px}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:640px){.cta{padding:36px 24px}}
.site-footer{background:#0b2231;color:#a9bdc9;padding:64px 0 28px;font-size:.92rem;margin-top:0}
.foot{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px}
.site-footer h4{color:#fff;font:800 .72rem var(--f-head);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.site-footer ul{list-style:none;display:grid;gap:8px}
.site-footer a{color:#a9bdc9}
.site-footer a:hover{color:#fff}
.site-footer .logo{color:#fff;margin-bottom:14px}
.site-footer .logo small{color:#7f98a6}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;font-size:.82rem;color:#7f98a6}
.foot-bottom a{color:#a9bdc9}
.social{display:flex;gap:10px;margin-top:16px}
.social a{width:38px;height:38px;border:1px solid rgba(255,255,255,.2);border-radius:50%;display:grid;place-items:center}
.social a:hover{background:rgba(255,255,255,.1)}
@media (max-width:900px){.foot{grid-template-columns:1fr 1fr}.foot>div:first-child{grid-column:1/-1}}
@media (max-width:480px){.foot{grid-template-columns:1fr}}
.demo-strip{background:var(--cake-soft);border-bottom:1px solid #e8d7bb;text-align:center;font-size:.78rem;color:#6f4514;padding:6px 12px}

/* ---------- Floating call button ---------- */
.fab-call{position:fixed;right:20px;bottom:20px;z-index:80;display:inline-flex;align-items:center;gap:9px;height:50px;padding:0 20px 0 15px;border-radius:999px;background:var(--ok);color:#fff;font:700 .92rem var(--f-head);box-shadow:0 10px 24px -8px rgba(15,60,40,.45);transition:transform .2s,box-shadow .2s}
.fab-call:hover{transform:translateY(-2px);box-shadow:0 14px 30px -8px rgba(15,60,40,.55);text-decoration:none;color:#fff}
.fab-call .ico{width:20px;height:20px;stroke-width:2}
@media (max-width:560px){.fab-call{padding:0;width:50px;justify-content:center}.fab-call span{display:none}}

/* ---------- Real photos ---------- */
figure.photo{margin:18px 0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff}
figure.photo img{width:100%;height:100%;object-fit:cover;display:block}
figure.photo figcaption{padding:9px 14px;font-size:.78rem;color:var(--muted);border-top:1px solid var(--line-2)}
figure.photo figcaption a{color:var(--muted);text-decoration:underline}
figure.photo.tall img{aspect-ratio:4/3}
figure.photo.wide img{aspect-ratio:16/9}
figure.photo.band{margin:22px 0}
figure.photo.band img{aspect-ratio:21/9}
figure.photo.square img{aspect-ratio:1/1}
figure.photo.product{background:#f4f7f7}
figure.photo.product img{object-fit:contain;aspect-ratio:4/3;padding:10px}
.credit-list{list-style:none;display:grid;gap:10px;font-size:.92rem;color:var(--ink-2)}
.credit-list li{padding-bottom:10px;border-bottom:1px solid var(--line-2)}
.credit-list b{color:var(--navy)}

/* ---------- Flagship equipment (real product example) ---------- */
.flagship{display:grid;grid-template-columns:260px 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow);margin-bottom:20px}
.flagship .fs-img{background:#f1f5f6;display:flex;align-items:center;justify-content:center;padding:18px}
.flagship .fs-img img{max-width:100%;max-height:230px;object-fit:contain}
.flagship .fs-body{padding:24px 28px}
.flagship h3{margin-bottom:.15em}
.flagship .fs-tag{font:700 .68rem var(--f-head);letter-spacing:.08em;text-transform:uppercase;color:var(--water)}
.flagship .specs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px 16px;margin:16px 0 6px;padding-top:14px;border-top:1px solid var(--line-2)}
.flagship .specs b{display:block;font:800 1.05rem var(--f-head);color:var(--navy);font-variant-numeric:tabular-nums}
.flagship .specs span{font-size:.72rem;color:var(--muted);line-height:1.3;display:block}
.flagship .src-note{font-size:.78rem;color:var(--muted);margin-top:12px}
@media (max-width:760px){.flagship{grid-template-columns:1fr}.flagship .fs-img{padding:26px}}

/* ---------- Motion ---------- */
.fade{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.fade.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.fade{opacity:1;transform:none;transition:none}*{transition-duration:.01ms !important}}
.flow-line{stroke-dasharray:6 6;animation:dash 1.6s linear infinite}
@keyframes dash{to{stroke-dashoffset:-24}}
@media print{.site-header,.subnav,.site-footer{display:none}}
.nav-wrap{margin-left:auto}
.hero-in>*,.grid>*,.hub-grid>*,.handbook>*{min-width:0}html{overflow-x:hidden}@media(max-width:920px){.hero-in{grid-template-columns:minmax(0,1fr)}}