/* ============================================================
   SUYOG HYDROSYSTEMS — Design System
   Premium industrial. System fonts (zero render-blocking).
   High contrast, restrained, technical.
   ============================================================ */
:root{
--ink:#0d1218; /* near-black */
--graphite:#161d27; /* dark panels */
--steel:#26303d; /* borders on dark */
--slate:#5b6a7d; /* muted text */
--mist:#8a99ab;
--line:#e2e6ec; /* light borders */
--paper:#ffffff;
--paper2:#f5f7f9; /* light section bg */
--paper3:#eef1f4;
--amber:#d4900a; /* brand */
--amber2:#f0a820;
--amber-ink:#7a5206;
--amber-bg:#fdf4e2;
--green:#1f8a54;
--danger:#c0392b;
--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
--mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
--wrap:1200px;
--r:6px;
--shadow:0 1px 2px rgba(13,18,24,.06),0 8px 24px rgba(13,18,24,.06);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.1;letter-spacing:-.02em;font-weight:800}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--amber-ink)}
.eyebrow.on-dark{color:var(--amber2)}
section{position:relative}
.pad{padding:76px 0}
.pad-sm{padding:52px 0}
.bg-paper2{background:var(--paper2)}
.bg-ink{background:var(--ink);color:#dfe6ef}
.bg-graphite{background:var(--graphite);color:#dfe6ef}
.center{text-align:center}
.mono{font-family:var(--mono)}

/* ---------- TOP UTILITY BAR ---------- */
.utility{background:var(--ink);color:#aab6c4;font-size:12.5px;font-family:var(--mono)}
.utility .wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px}
.utility a{color:#cdd7e2}
.utility a:hover{color:var(--amber2)}
.utility .u-right{display:flex;gap:18px;align-items:center}
@media(max-width:720px){.utility .u-left{display:none}.utility .wrap{justify-content:center}}

/* ---------- HEADER / NAV ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:38px;width:auto;border-radius:5px}
.brand-txt strong{display:block;font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1}
.brand-txt span{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{font-size:14.5px;font-weight:600;padding:9px 13px;border-radius:var(--r);color:#33404f}
.nav-links a:hover{background:var(--paper2);color:var(--ink)}
.nav-cta{margin-left:8px;background:var(--amber)!important;color:#1a1204!important;font-weight:700!important;padding:10px 16px!important}
.nav-cta:hover{background:var(--amber2)!important}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:var(--r);width:44px;height:40px;cursor:pointer;flex-direction:column;gap:4px;align-items:center;justify-content:center}
.burger span{width:20px;height:2px;background:var(--ink)}
@media(max-width:1000px){
.nav-links{position:fixed;inset:106px 0 auto 0;background:var(--paper);flex-direction:column;align-items:stretch;padding:12px 24px 24px;gap:2px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-140%);transition:transform .28s ease;max-height:calc(100vh - 106px);overflow:auto}
.nav-links.open{transform:translateY(0)}
.nav-links a{padding:13px 12px;border-radius:var(--r);font-size:16px}
.nav-cta{margin:8px 0 0;text-align:center}
.burger{display:flex}
}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:13px 22px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;transition:.18s;line-height:1;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--amber);color:#1a1204;border-color:var(--amber)}
.btn-primary:hover{background:var(--amber2);border-color:var(--amber2);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-dark:hover{background:#1d2530;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost.on-dark:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-wa{background:#25923a;color:#fff;border-color:#25923a}
.btn-wa:hover{background:#1f7d31}
.btn-lg{padding:16px 28px;font-size:16px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- HERO ---------- */
.hero{background:
radial-gradient(1200px 600px at 78% -10%,rgba(212,144,10,.16),transparent 60%),
linear-gradient(180deg,#0b1016 0%,#0d1218 55%,#111925 100%);
color:#e8eef5;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(900px 500px at 75% 10%,#000,transparent 75%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:64px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.4rem,5.2vw,4.1rem);letter-spacing:-.03em;line-height:1.02}
.hero h1 .amber{color:var(--amber2)}
.hero .lede{margin-top:20px;font-size:clamp(1.05rem,1.6vw,1.25rem);color:#aebccb;max-width:36ch}
.hero .btn-row{margin-top:30px}
.hero-badges{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px}
.hbadge{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:#dbe4ee;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);padding:7px 12px;border-radius:20px}
.hbadge b{color:var(--amber2)}
.hero-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:22px;backdrop-filter:blur(4px)}
.hero-card .hc-title{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber2);margin-bottom:14px}
.hc-row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px}
.hc-row:last-child{border-bottom:0}
.hc-row span{color:#93a2b3;font-family:var(--mono);font-size:12.5px}
.hc-row b{color:#eef3f8}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:32px}.hero-card{order:2}}

/* ---------- TRUST BAR ---------- */
.trustbar{background:var(--ink);border-top:1px solid #1c2530}
.trustbar .wrap{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.tb-item{padding:22px 18px;text-align:center;border-right:1px solid #1c2530}
.tb-item:last-child{border-right:0}
.tb-item .n{font-family:var(--mono);font-size:1.4rem;font-weight:700;color:var(--amber2);letter-spacing:-.01em}
.tb-item .l{font-size:12.5px;color:#9fb0c1;margin-top:4px;line-height:1.35}
@media(max-width:820px){.trustbar .wrap{grid-template-columns:repeat(2,1fr)}.tb-item{border-bottom:1px solid #1c2530}.tb-item:nth-child(odd){border-right:1px solid #1c2530}.tb-item:nth-child(even){border-right:0}.tb-item:last-child{grid-column:1/-1;border-bottom:0}}

/* ---------- SECTION HEADINGS ---------- */
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head h2{font-size:clamp(1.7rem,3.2vw,2.5rem);margin-top:10px}
.sec-head p{margin-top:14px;color:var(--slate);font-size:1.05rem}
.bg-ink .sec-head p,.bg-graphite .sec-head p{color:#9fb0c1}

/* ---------- CARDS / GRIDS ---------- */
.grid{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g-3,.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g-2,.g-3,.g-4{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:24px;transition:.18s}
.card:hover{border-color:#cdd5df;box-shadow:var(--shadow);transform:translateY(-2px)}
.card .k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-ink)}
.card h3{font-size:1.2rem;margin:12px 0 8px}
.card p{color:var(--slate);font-size:.95rem}
.card .card-link{margin-top:14px;display:inline-flex;gap:6px;font-weight:700;font-size:14px;color:var(--amber-ink)}
.card .card-link:hover{color:var(--amber)}
.card-icon{width:44px;height:44px;border-radius:8px;background:var(--amber-bg);display:flex;align-items:center;justify-content:center;color:var(--amber-ink);margin-bottom:8px}
.card-icon svg{width:22px;height:22px}

/* product card */
.pcard{background:var(--paper);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:.18s}
.pcard:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#cdd5df}
.pcard-img{aspect-ratio:16/10;background:linear-gradient(135deg,#1a2330,#2a3646);position:relative;display:flex;align-items:center;justify-content:center;color:#6b7c90}
.pcard-img .ph{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;text-align:center;padding:0 16px}
.pcard-img .tag{position:absolute;top:12px;left:12px;background:var(--amber);color:#1a1204;font-family:var(--mono);font-size:10.5px;font-weight:700;padding:4px 9px;border-radius:4px;letter-spacing:.04em}
.pcard-body{padding:20px;display:flex;flex-direction:column;flex:1}
.pcard-body h3{font-size:1.15rem}
.pcard-body .desc{color:var(--slate);font-size:.92rem;margin:8px 0 14px}
.pcard-specs{font-family:var(--mono);font-size:12px;color:#3d4a5a;border-top:1px dashed var(--line);padding-top:12px;margin-top:auto;display:grid;gap:5px}
.pcard-specs div{display:flex;justify-content:space-between;gap:8px}
.pcard-specs span{color:var(--mist)}
.pcard-actions{display:flex;gap:8px;margin-top:16px}
.pcard-actions .btn{flex:1;justify-content:center;font-size:13.5px;padding:10px 12px}

/* ---------- SPEC TABLE ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table caption{text-align:left;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber-ink);padding-bottom:10px}
.spec-table th,.spec-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.spec-table thead th{font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--slate);background:var(--paper2)}
.spec-table tbody tr:hover{background:var(--paper2)}
.spec-table td.num{font-family:var(--mono)}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:8px}

/* ---------- FEATURE / SPLIT ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}}
.media-ph{border-radius:10px;background:linear-gradient(135deg,#141c27,#263243);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;color:#76889c;border:1px solid var(--steel);position:relative;overflow:hidden}
.media-ph .lbl{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;text-align:center;padding:0 20px;line-height:1.6}
.media-ph::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px);background-size:100% 22px}
.ul-check{list-style:none;display:grid;gap:12px;margin-top:18px}
.ul-check li{position:relative;padding-left:30px;color:#33404f}
.bg-ink .ul-check li,.bg-graphite .ul-check li{color:#c4cfda}
.ul-check li::before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:5px;background:var(--amber-bg);border:1px solid var(--amber);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d4900a' stroke-width='3'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;background-size:13px}

/* ---------- CALLOUT / REPLACEMENT ---------- */
.callout{background:linear-gradient(135deg,#1a1206,#241a08);border:1px solid #3a2c10;border-radius:12px;padding:44px;color:#f3ead7;position:relative;overflow:hidden}
.callout::before{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;background:radial-gradient(circle,rgba(212,144,10,.28),transparent 70%)}
.callout .k{color:var(--amber2)}
.callout h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin:8px 0 14px}
.callout h2 .amber{color:var(--amber2)}
.callout p{color:#d7ccb4;max-width:60ch}

/* ---------- STEPS / TIMELINE ---------- */
.steps{counter-reset:s;display:grid;gap:16px}
.step{display:flex;gap:16px;align-items:flex-start}
.step .num{counter-increment:s;flex-shrink:0;width:36px;height:36px;border-radius:8px;background:var(--ink);color:#fff;font-family:var(--mono);font-weight:600;display:flex;align-items:center;justify-content:center}
.step .num::before{content:counter(s)}
.timeline{border-left:2px solid var(--line);padding-left:24px;display:grid;gap:22px;margin-top:10px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-31px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--amber);border:3px solid var(--paper)}
.tl-item .yr{font-family:var(--mono);font-weight:700;color:var(--amber-ink);font-size:14px}
.tl-item p{color:var(--slate);font-size:.95rem;margin-top:2px}

/* ---------- FORM ---------- */
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#33404f}
.field label .req{color:var(--danger)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r);font-family:inherit;font-size:15px;color:var(--ink);background:var(--paper);transition:.15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(212,144,10,.15)}
.field textarea{resize:vertical;min-height:96px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
@media(max-width:600px){.form-grid{grid-template-columns:1fr}}
.form-note{font-size:12.5px;color:var(--slate);margin-top:6px}
.form-status{padding:12px 14px;border-radius:var(--r);font-size:14px;margin-bottom:14px;display:none}
.form-status.ok{display:block;background:#e8f6ee;border:1px solid #a9dcc0;color:#176c41}
.form-status.err{display:block;background:#fdece9;border:1px solid #f0b7ae;color:#a62c1c}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--line);border-radius:8px;padding:0;margin-bottom:10px;background:var(--paper)}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:700;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--amber-ink);font-size:1.3rem;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 20px 18px;color:var(--slate)}

/* ---------- BREADCRUMB ---------- */
.crumb{font-family:var(--mono);font-size:12px;color:var(--slate);padding:16px 0}
.crumb a:hover{color:var(--amber-ink)}
.crumb span{margin:0 7px;color:var(--mist)}

/* ---------- FOOTER ---------- */
.site-foot{background:var(--ink);color:#9fb0c1;padding-top:56px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid #1c2530}
.foot-brand .brand-txt strong{color:#fff}
.foot-brand p{font-size:13.5px;margin-top:14px;max-width:34ch;color:#8496a8}
.foot-col h4{font-size:12px;font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;color:#c9d4df;margin-bottom:14px}
.foot-col a{display:block;font-size:14px;padding:5px 0;color:#9fb0c1}
.foot-col a:hover{color:var(--amber2)}
.foot-bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0;font-size:12.5px;font-family:var(--mono);color:#6d7f92}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}

/* ---------- STICKY MOBILE CTA ---------- */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;gap:8px;padding:10px 12px;background:rgba(13,18,24,.96);backdrop-filter:blur(6px);border-top:1px solid var(--steel)}
.mobile-cta .btn{flex:1;justify-content:center;padding:12px;font-size:14px}
@media(max-width:1000px){.mobile-cta{display:flex}body{padding-bottom:66px}}

/* ---------- UTIL ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;padding:5px 11px;border-radius:20px;background:var(--amber-bg);color:var(--amber-ink);border:1px solid #f0dcae}
.lead-big{font-size:clamp(1.1rem,1.8vw,1.35rem);color:#33404f;line-height:1.6}
.prose{max-width:72ch}
.prose p{margin-bottom:16px;color:#2d3947}
.prose h2{font-size:1.7rem;margin:36px 0 14px}
.prose h3{font-size:1.25rem;margin:26px 0 10px}
.prose ul{margin:0 0 16px 20px;color:#2d3947}
.prose li{margin-bottom:7px}
.divider{height:1px;background:var(--line);margin:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}