/* ============================================================
   AF CHEMICAL — design system
   Industrial minerals & chemical raw materials, global B2B supply.
   Palette: warm graphite + off-white + muted sand/metallic + one
   distinctive rust/copper accent (raw-ore, oxidized-mineral cue).
   Type: Unbounded (bold geometric display) + Inter (technical body).
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@500;600;700;800;900&family=Inter:wght@400;500;600;700;800&display=swap');

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip;max-width:100%}
:root{
  --ink:#15130F;
  --ink-800:#211E18;
  --ink-700:#2D2921;
  --ink-600:#433D31;
  --stone-50:#F6F3EC;
  --stone-100:#EEE8D9;
  --stone-200:#DED4B9;
  --stone-300:#C7B994;
  --stone-muted:#8A8270;
  --metal:#5B6570;
  --metal-light:#8A929B;
  --accent:#C1571F;
  --accent-light:#DE7B3F;
  --accent-dark:#8F3F13;
  --accent-50:#FBEEE4;
  --white:#FFFFFF;
  --radius:2px;
  --radius-lg:4px;
  --font-display:'Unbounded',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --container:1320px;
  --shadow:0 1px 3px rgba(21,19,15,.06),0 8px 24px rgba(21,19,15,.06);
  --shadow-lg:0 24px 64px rgba(21,19,15,.16);
}
html.lang-ru [data-en]{display:none!important}
html.lang-en [data-ru]{display:none!important}

body{font-family:var(--font-body);background:var(--stone-50);color:var(--ink);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.disp{font-family:var(--font-display)}
.mono{font-family:var(--font-body);font-variant-numeric:tabular-nums}

/* subtle topographic/contour texture, used as a section background accent */
.contour-bg{position:relative}
.contour-bg::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    repeating-radial-gradient(circle at 85% 15%, transparent 0, transparent 38px, rgba(21,19,15,.035) 39px, transparent 40px, transparent 78px);
}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:500;background:rgba(246,243,236,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(21,19,15,.08);transition:padding .3s ease}
.nav-in{max-width:var(--container);margin:0 auto;padding:0 32px;height:86px;display:flex;align-items:center;gap:8px;transition:height .3s ease}
.nav.scrolled .nav-in{height:66px}
.nav-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-logo img{height:42px;width:auto;transition:height .3s ease}
.nav.scrolled .nav-logo img{height:34px}
.nav-logo-text{font-family:var(--font-display);font-weight:800;font-size:1.02rem;letter-spacing:-.01em;line-height:1.1;color:var(--ink)}
.nav-logo-text span{display:block;font-family:var(--font-body);font-weight:600;font-size:.58rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-links>a{font-size:.76rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-600);padding:9px 15px;transition:.2s;white-space:nowrap;position:relative}
.nav-links>a::after{content:'';position:absolute;left:15px;right:15px;bottom:4px;height:1.5px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-links>a:hover{color:var(--ink)}
.nav-links>a:hover::after,.nav-links>a.active::after{transform:scaleX(1)}
.nav-links>a.active{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.lang-sw{display:flex;align-items:center;gap:2px;font-size:.72rem;font-weight:800}
.lang-sw button{border:none;background:none;color:var(--stone-muted);padding:4px 6px;cursor:pointer;letter-spacing:.03em;transition:.15s}
.lang-sw button.on{color:var(--ink)}
.lang-sw .sep{color:var(--stone-200)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;cursor:pointer;font-family:var(--font-body);font-weight:700;font-size:.78rem;letter-spacing:.03em;text-transform:uppercase;transition:.25s cubic-bezier(.3,.8,.4,1);border-radius:var(--radius)}
.btn-accent{background:var(--accent);color:var(--white);padding:13px 26px}
.btn-accent:hover{background:var(--accent-dark)}
.btn-dark{background:var(--ink);color:var(--stone-50);padding:13px 26px}
.btn-dark:hover{background:var(--ink-700)}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid rgba(21,19,15,.22);padding:11.5px 24px}
.btn-outline:hover{border-color:var(--ink)}
.btn-outline-lt{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35);padding:11.5px 24px}
.btn-outline-lt:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{padding:9px 18px;font-size:.7rem}
.btn svg{width:14px;height:14px}
.mnav-btn{display:none;width:40px;height:40px;border:none;background:none;cursor:pointer;align-items:center;justify-content:center;flex-shrink:0}

/* ===== BREADCRUMB ===== */
.crumb{padding:16px 0;font-size:.72rem;border-bottom:1px solid var(--stone-200);color:var(--stone-muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}
.crumb a{color:var(--stone-muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{margin:0 8px;color:var(--stone-300)}
.crumb .cur{color:var(--ink)}

/* ===== SECTION shared ===== */
.section{padding:120px 0}
.section.tight{padding:80px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.7rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.eyebrow::before{content:'';width:28px;height:2px;background:var(--accent)}
.eyebrow.on-dark{color:var(--accent-light)}
.eyebrow.center{justify-content:center}
.eyebrow.center::before{display:none}
.sec-title{font-family:var(--font-display);font-weight:700;font-size:2.9rem;line-height:1.06;letter-spacing:-.02em;color:var(--ink)}
.sec-title em{font-style:normal;color:var(--accent)}
.sec-title.on-dark{color:var(--stone-50)}
.sec-sub{font-size:.96rem;color:var(--ink-600);line-height:1.75;max-width:560px;margin-top:20px}
.sec-sub.on-dark{color:rgba(246,243,236,.68)}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:64px;flex-wrap:wrap}
.head-row .sec-sub{margin-top:0;padding-bottom:6px}
.center-head{text-align:center;max-width:680px;margin:0 auto 64px}

/* ===== HERO ===== */
.hero{position:relative;padding:64px 0 0;overflow:hidden;background:var(--stone-50)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:0;align-items:stretch;min-height:calc(100svh - 86px)}
.hero-left{display:flex;flex-direction:column;justify-content:center;padding:40px 56px 60px clamp(32px,6vw,88px)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.72rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:26px}
.hero-eyebrow::before{content:'';width:30px;height:2px;background:var(--accent)}
.hero h1{font-family:var(--font-display);font-weight:800;font-size:4.4rem;line-height:.98;letter-spacing:-.02em;color:var(--ink);margin-bottom:28px}
.hero h1 .ln{display:block}
.hero h1 .accent-ln{color:var(--accent)}
.hero-desc{font-size:1.04rem;color:var(--ink-600);line-height:1.8;max-width:520px;margin-bottom:40px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:flex;gap:0;border-top:1px solid var(--stone-200)}
.hero-stat{padding:22px 30px 0 0;margin-right:30px;border-right:1px solid var(--stone-200)}
.hero-stat:last-child{border-right:none;margin-right:0}
.hero-stat b{display:block;font-family:var(--font-display);font-weight:800;font-size:1.7rem;color:var(--ink);line-height:1}
.hero-stat span{font-size:.66rem;color:var(--stone-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:700;display:block;margin-top:6px}
.hero-right{position:relative;background:linear-gradient(155deg,var(--ink) 0%,var(--ink-700) 100%);overflow:hidden}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.hero-slide.on{opacity:1;z-index:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;opacity:.92;animation:heroken 3.6s ease-out forwards}
@keyframes heroken{from{transform:scale(1.12)}to{transform:scale(1)}}
.hero-right::before{content:'';position:absolute;inset:0;background:linear-gradient(0deg,var(--ink) 0%,transparent 30%,transparent 75%,rgba(21,19,15,.3) 100%);z-index:2}
.hero-tag{position:absolute;left:28px;bottom:28px;z-index:3;background:rgba(21,19,15,.55);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14);padding:12px 18px;font-size:.7rem;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.06em;display:flex;align-items:center;gap:10px}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-light)}
.hero-dots{position:absolute;right:24px;bottom:28px;z-index:3;display:flex;gap:7px}
.hero-dots button{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.35);border:none;cursor:pointer;padding:0;transition:.3s}
.hero-dots button.on{background:var(--accent-light);width:20px;border-radius:4px}
.hero-corner{position:absolute;top:28px;right:28px;z-index:3;width:44px;height:44px;border:1.5px solid rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;color:#fff}
.hero-corner svg{width:18px;height:18px}

/* ===== MARQUEE (materials strip) ===== */
.mat-strip{border-top:1px solid var(--stone-200);border-bottom:1px solid var(--stone-200);background:var(--stone-100);overflow:hidden;padding:16px 0}
.mat-track{display:flex;gap:0;width:max-content;animation:matmarquee 38s linear infinite}
.mat-track span{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:.86rem;color:var(--ink-600);white-space:nowrap;padding:0 30px;border-right:1px solid var(--stone-300)}
@keyframes matmarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== PRODUCT GRID ===== */
.prod-toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:48px}
.prod-filter{border:1.5px solid var(--stone-200);background:transparent;padding:9px 18px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;cursor:pointer;transition:.2s;color:var(--ink-600)}
.prod-filter:hover{border-color:var(--ink)}
.prod-filter.on{background:var(--ink);border-color:var(--ink);color:var(--stone-50)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--stone-200);border:1px solid var(--stone-200)}
.prod-card{background:var(--stone-50);padding:36px 30px;display:flex;flex-direction:column;transition:.3s;position:relative}
.prod-card:hover{background:var(--white)}
.prod-swatch{width:52px;height:52px;margin-bottom:22px;position:relative;border-radius:50%;background-size:cover;background-position:center}
.prod-swatch::after{content:'';position:absolute;inset:6px;border-radius:50%;background:var(--stone-50)}
.prod-swatch.img::after{display:none}
.prod-swatch.img{box-shadow:0 0 0 3px var(--stone-50),0 0 0 4px var(--stone-200)}
.prod-tag{font-size:.64rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:10px}
.prod-name{font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:var(--ink);margin-bottom:10px;letter-spacing:-.01em}
.prod-formula{font-size:.72rem;color:var(--stone-muted);margin-bottom:14px;font-weight:600}
.prod-desc{font-size:.82rem;color:var(--ink-600);line-height:1.7;margin-bottom:24px;flex:1}
.prod-link{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--ink);display:inline-flex;align-items:center;gap:8px;padding-top:16px;border-top:1px solid var(--stone-200);margin-top:auto}
.prod-card:hover .prod-link{color:var(--accent)}
.prod-link svg{width:13px;height:13px;transition:.25s}
.prod-card:hover .prod-link svg{transform:translateX(4px)}

/* ===== PRODUCT DETAIL ===== */
.pd-hero{background:var(--ink);color:#fff;padding:64px 0 56px}
.pd-hero-top{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;flex-wrap:wrap;margin-bottom:30px}
.pd-tag{font-size:.7rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-light)}
.pd-title{font-family:var(--font-display);font-weight:800;font-size:3.4rem;letter-spacing:-.02em;line-height:1;margin:14px 0 10px}
.pd-formula{font-size:.9rem;color:rgba(255,255,255,.55);font-weight:600;letter-spacing:.02em}
.pd-swatch-lg{width:84px;height:84px;border-radius:50%;flex-shrink:0;position:relative;background-size:cover;background-position:center}
.pd-swatch-lg::after{content:'';position:absolute;inset:10px;border-radius:50%;background:var(--ink)}
.pd-swatch-lg.img::after{display:none}
.pd-swatch-lg.img{box-shadow:0 0 0 3px var(--ink),0 0 0 4px rgba(255,255,255,.18)}
.pd-chips{display:flex;gap:8px;flex-wrap:wrap}
.pd-chip{border:1px solid rgba(255,255,255,.22);padding:6px 14px;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:rgba(255,255,255,.75)}

.pd-body{display:grid;grid-template-columns:1fr 340px;gap:70px;padding:70px 0}
.pd-block{margin-bottom:56px}
.pd-block:last-child{margin-bottom:0}
.pd-block h3{font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:var(--ink);margin-bottom:18px;letter-spacing:-.01em}
.pd-block p{font-size:.9rem;color:var(--ink-600);line-height:1.8;margin-bottom:14px}
.pd-apps{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pd-app-item{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--stone-100);font-size:.82rem;font-weight:600}
.pd-app-item .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
.spec-table{width:100%;border-collapse:collapse;font-size:.84rem}
.spec-table tr{border-bottom:1px solid var(--stone-200)}
.spec-table tr:first-child{border-top:1px solid var(--stone-200)}
.spec-table td{padding:14px 4px}
.spec-table td:first-child{color:var(--stone-muted);font-weight:600;width:44%}
.spec-table td:last-child{color:var(--ink);font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.demo-note{display:flex;align-items:flex-start;gap:10px;background:var(--accent-50);border-left:2px solid var(--accent);padding:14px 16px;font-size:.76rem;color:var(--accent-dark);line-height:1.6;margin-top:18px}
.demo-note svg{width:15px;height:15px;flex-shrink:0;margin-top:1px}

.pd-side{position:sticky;top:110px;align-self:start}
.pd-side-card{background:var(--stone-100);padding:28px 26px;margin-bottom:16px}
.pd-side-card h4{font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--stone-muted);margin-bottom:14px}
.pd-side-row{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--stone-200);font-size:.8rem}
.pd-side-row:last-child{border-bottom:none}
.pd-side-row span:first-child{color:var(--stone-muted);font-weight:600}
.pd-side-row span:last-child{color:var(--ink);font-weight:700;text-align:right}
.pd-cta-card{background:var(--ink);color:#fff;padding:30px 26px}
.pd-cta-card h4{font-family:var(--font-display);font-weight:700;font-size:1.1rem;margin-bottom:10px}
.pd-cta-card p{font-size:.78rem;color:rgba(255,255,255,.6);line-height:1.6;margin-bottom:20px}

/* ===== SPLIT / EDITORIAL ===== */
.split-ed{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.split-ed.rev .split-ed-media{order:2}
.split-ed-media{position:relative}
.split-ed-media img{width:100%;height:auto;display:block}
.split-ed-num{position:absolute;top:-22px;left:-22px;font-family:var(--font-display);font-weight:800;font-size:5rem;color:var(--stone-200);z-index:0;line-height:1}
.split-ed-body{position:relative;z-index:1}
.split-ed-body p{font-size:.94rem;color:var(--ink-600);line-height:1.85;margin-bottom:18px}

/* ===== VALUE / APPROACH LIST ===== */
.approach-list{display:flex;flex-direction:column}
.approach-item{display:grid;grid-template-columns:80px 1fr;gap:30px;padding:36px 0;border-top:1px solid var(--stone-200)}
.approach-list .approach-item:last-child{border-bottom:1px solid var(--stone-200)}
.approach-num{font-family:var(--font-display);font-weight:800;font-size:1.3rem;color:var(--accent)}
.approach-item h4{font-family:var(--font-display);font-weight:700;font-size:1.2rem;color:var(--ink);margin-bottom:10px}
.approach-item p{font-size:.86rem;color:var(--ink-600);line-height:1.75;max-width:600px}

/* ===== INDUSTRIES (interactive tabs) ===== */
.ind-wrap{display:grid;grid-template-columns:300px 1fr;gap:0;border:1px solid var(--stone-200)}
.ind-list{border-right:1px solid var(--stone-200)}
.ind-tab{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:22px 26px;border-bottom:1px solid var(--stone-200);cursor:pointer;transition:.2s}
.ind-tab:last-child{border-bottom:none}
.ind-tab span{font-family:var(--font-display);font-weight:700;font-size:.92rem;color:var(--ink-600);transition:.2s}
.ind-tab svg{width:14px;height:14px;color:var(--stone-300);transition:.2s}
.ind-tab:hover{background:var(--stone-100)}
.ind-tab.on{background:var(--ink)}
.ind-tab.on span{color:#fff}
.ind-tab.on svg{color:var(--accent-light)}
.ind-panels{position:relative;min-height:460px}
.ind-panel{display:none;padding:50px 56px}
.ind-panel.on{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.ind-panel-media{aspect-ratio:1/.85;overflow:hidden;background:var(--stone-100)}
.ind-panel-media img{width:100%;height:100%;object-fit:cover}
.ind-panel-body .eyebrow{margin-bottom:14px}
.ind-panel-body h3{font-family:var(--font-display);font-weight:700;font-size:1.8rem;color:var(--ink);margin-bottom:16px;letter-spacing:-.01em}
.ind-panel-body p{font-size:.88rem;color:var(--ink-600);line-height:1.8;margin-bottom:20px}
.ind-uses{display:flex;flex-wrap:wrap;gap:8px}
.ind-uses span{font-size:.7rem;font-weight:700;background:var(--stone-100);padding:7px 14px;color:var(--ink-600)}

/* ===== GLOBAL REACH / NETWORK MAP ===== */
.network-wrap{position:relative;background:var(--ink);padding:70px 40px;overflow:hidden}
.network-svg{width:100%;height:auto;position:relative;z-index:2}
.net-line{fill:none;stroke:var(--accent);stroke-width:1.4;stroke-dasharray:5 6;opacity:.55;animation:netdash 40s linear infinite}
@keyframes netdash{to{stroke-dashoffset:-1000}}
.net-hub{fill:var(--accent);filter:drop-shadow(0 0 10px rgba(193,87,31,.7))}
.net-hub-ring{fill:none;stroke:var(--accent-light);stroke-width:1;opacity:.5;animation:netring 3s ease-out infinite}
@keyframes netring{0%{r:14;opacity:.6}100%{r:34;opacity:0}}
.net-node{fill:rgba(255,255,255,.85)}
.net-label{font-family:var(--font-body);font-size:10.5px;font-weight:700;fill:rgba(255,255,255,.72);letter-spacing:.02em}
.net-label.hub{fill:var(--accent-light);font-weight:800}
.logi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--stone-200);border:1px solid var(--stone-200);margin-top:1px}
.logi-card{background:var(--stone-50);padding:30px 26px}
.logi-card svg{width:26px;height:26px;color:var(--accent);margin-bottom:18px}
.logi-card h4{font-family:var(--font-display);font-weight:700;font-size:.98rem;color:var(--ink);margin-bottom:10px}
.logi-card p{font-size:.78rem;color:var(--ink-600);line-height:1.65}

/* ===== QUALITY / CERT ===== */
.qual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--stone-200);border:1px solid var(--stone-200)}
.qual-card{background:var(--stone-50);padding:34px 30px}
.qual-card svg{width:28px;height:28px;color:var(--accent);margin-bottom:20px}
.qual-card h4{font-family:var(--font-display);font-weight:700;font-size:1.05rem;color:var(--ink);margin-bottom:12px}
.qual-card p{font-size:.82rem;color:var(--ink-600);line-height:1.7}
.cert-strip{display:flex;flex-wrap:wrap;gap:14px}
.cert-badge{width:180px;height:100px;border:1.5px dashed var(--stone-300);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;padding:14px}
.cert-badge svg{width:22px;height:22px;color:var(--stone-300)}
.cert-badge span{font-size:.66rem;font-weight:700;color:var(--stone-muted);text-transform:uppercase;letter-spacing:.03em}

/* ===== CTA BAND ===== */
.cta-band{background:var(--ink);color:#fff;padding:80px 60px;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band h3{font-family:var(--font-display);font-weight:700;font-size:2.1rem;letter-spacing:-.01em;max-width:520px;line-height:1.1}
.cta-band p{font-size:.88rem;color:rgba(255,255,255,.6);max-width:400px;margin-top:12px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ===== FORM (Request a Quote) ===== */
.form-wrap{display:grid;grid-template-columns:1fr 380px;gap:70px}
.form-card{background:var(--white);border:1px solid var(--stone-200);padding:44px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group.full{grid-column:1/-1}
.form-group label{font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--stone-muted)}
.form-group label .req{color:var(--accent)}
.form-group input,.form-group select,.form-group textarea{border:1.5px solid var(--stone-200);padding:13px 15px;font-family:var(--font-body);font-size:.85rem;color:var(--ink);background:var(--stone-50);outline:none;transition:.15s;border-radius:0}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);background:#fff}
.form-group textarea{resize:vertical;min-height:110px}
.file-drop{border:1.5px dashed var(--stone-200);padding:20px;text-align:center;font-size:.78rem;color:var(--stone-muted);cursor:pointer;transition:.15s}
.file-drop:hover{border-color:var(--accent);color:var(--accent)}
.quote-side-card{background:var(--stone-100);padding:30px 26px;margin-bottom:16px}
.quote-side-card h4{font-family:var(--font-display);font-weight:700;font-size:1rem;color:var(--ink);margin-bottom:14px}
.quote-side-card .row{display:flex;gap:12px;margin-bottom:16px;font-size:.82rem;color:var(--ink-600);line-height:1.6}
.quote-side-card .row svg{width:16px;height:16px;color:var(--accent);flex-shrink:0;margin-top:2px}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}
.contact-item{display:flex;gap:18px;padding:26px 0;border-bottom:1px solid var(--stone-200)}
.contact-item svg{width:22px;height:22px;color:var(--accent);flex-shrink:0}
.contact-item h4{font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--stone-muted);margin-bottom:6px}
.contact-item div p,.contact-item div a{font-size:.94rem;font-weight:600;color:var(--ink)}

/* ===== FOOTER ===== */
.foot{background:var(--ink);color:rgba(255,255,255,.55);padding:80px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:50px;padding-bottom:50px}
.foot-logo{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.foot-logo img{height:38px}
.foot-logo-text{font-family:var(--font-display);font-weight:800;color:#fff;font-size:1.05rem}
.foot-desc{font-size:.82rem;line-height:1.75;color:rgba(255,255,255,.42);max-width:300px}
.foot h4{font-size:.66rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.35);margin-bottom:20px}
.foot a.flink{display:block;font-size:.82rem;color:rgba(255,255,255,.6);margin-bottom:13px;transition:.15s}
.foot a.flink:hover{color:var(--accent-light)}
.foot-contact-item{font-size:.82rem;color:rgba(255,255,255,.6);margin-bottom:14px;line-height:1.6}
.foot-contact-item b{display:block;font-size:.64rem;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,255,255,.35);margin-bottom:4px;font-weight:700}
.foot-bot{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;align-items:center;font-size:.7rem;color:rgba(255,255,255,.32);flex-wrap:wrap;gap:10px}
.foot-bot a{color:rgba(255,255,255,.32)}
.foot-bot a:hover{color:var(--accent-light)}
.wm-credit{text-align:center;font-size:11px;color:rgba(255,255,255,.22);padding:12px 0}
.wm-credit a{color:inherit;text-decoration:underline}

/* ===== reveal-on-scroll ===== */
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.6,.3,1),transform .7s cubic-bezier(.2,.6,.3,1)}
.rv.in{opacity:1;transform:translateY(0)}

/* ===== mobile menu overlay ===== */
.mnav-overlay{position:fixed;inset:0;background:var(--ink);z-index:900;display:none;flex-direction:column}
.mnav-overlay.open{display:flex}
.mnav-top{display:flex;justify-content:space-between;align-items:center;padding:24px 32px;border-bottom:1px solid rgba(255,255,255,.1)}
.mnav-close{width:38px;height:38px;border:none;background:rgba(255,255,255,.08);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}
.mnav-panel{padding:20px 32px;overflow-y:auto}
.mnav-panel a{display:block;padding:16px 0;font-family:var(--font-display);font-weight:700;font-size:1.3rem;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.mnav-panel a.sub{font-size:.9rem;color:rgba(255,255,255,.55);padding-left:16px}
.mnav-cta{padding:24px 32px;margin-top:auto}

/* ===== responsive ===== */
@media(max-width:1080px){
  .hero h1{font-size:3.4rem}
  .prod-grid{grid-template-columns:1fr 1fr}
  .pd-body{grid-template-columns:1fr}
  .pd-side{position:static}
  .form-wrap{grid-template-columns:1fr}
  .ind-panel.on{grid-template-columns:1fr}
  .logi-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-in{padding:0 20px;gap:10px}
  .nav-links{display:none}
  .nav-right .btn-accent.btn-sm{display:none}
  .nav-logo-text{font-size:.86rem}
  .nav-logo img{height:34px}
  .mnav-btn{display:flex}
  .hero-grid{grid-template-columns:1fr;min-height:auto}
  .hero-left{padding:40px 24px 50px}
  .hero-right{height:52vh}
  .hero h1{font-size:2.6rem}
  .split-ed,.split-ed.rev{grid-template-columns:1fr;gap:40px}
  .split-ed.rev .split-ed-media{order:0}
  .qual-grid{grid-template-columns:1fr 1fr}
  .ind-wrap{grid-template-columns:1fr}
  .ind-list{display:flex;overflow-x:auto;border-right:none;border-bottom:1px solid var(--stone-200)}
  .ind-tab{border-bottom:none;border-right:1px solid var(--stone-200);flex-shrink:0}
  .ind-panel{padding:36px 24px}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .container{padding:0 20px}
  .hero-left{padding:34px 20px 40px}
  .hero h1{font-size:2.1rem}
  .hero-stats{flex-wrap:wrap}
  .hero-stat{margin-right:20px;padding-right:0;margin-bottom:16px}
  .prod-grid{grid-template-columns:1fr}
  .qual-grid{grid-template-columns:1fr}
  .logi-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:36px}
  .form-row{grid-template-columns:1fr}
  .pd-apps{grid-template-columns:1fr}
  .cta-band{padding:44px 26px;flex-direction:column;align-items:flex-start}
  .section{padding:72px 0}
  .sec-title{font-size:2rem}
  .approach-item{grid-template-columns:1fr;gap:10px}
}