/* ============================================================
   Sanfytech v5 — design system (dark IA)
   Palette logo : navy #16213a · teal #1ea7a0 / #117a74 · orange #e8631f
   ============================================================ */
:root{
  --navy:#0f1830;          /* page background, deepest */
  --navy-1:#16213a;        /* primary navy */
  --navy-2:#1c2942;        /* raised surface */
  --navy-3:#22324f;        /* card border / hover */
  --teal:#1ea7a0;          /* bright accent */
  --teal-deep:#117a74;     /* buttons / contrast */
  --orange:#e8631f;        /* secondary accent / CTA pop */
  --ink:#eaf1f6;           /* main text on dark */
  --muted:#9fb0c3;         /* secondary text */
  --muted-2:#6f8197;       /* tertiary */
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --radius:16px;
  --radius-sm:11px;
  --maxw:1180px;
  --shadow:0 24px 50px -24px rgba(0,0,0,.7);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:92px}
body{
  font-family:"Inter var",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--navy);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block}
::selection{background:var(--teal-deep);color:#fff}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* ---------- typography ---------- */
h1,h2,h3,h4{line-height:1.12;letter-spacing:-.02em;font-weight:800}
.h-xl{font-size:clamp(34px,5vw,58px);font-weight:800;letter-spacing:-.025em;line-height:1.05}
.h-lg{font-size:clamp(28px,3.6vw,42px)}
.h-md{font-size:clamp(22px,2.4vw,30px)}
.lead{font-size:19px;color:var(--muted)}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--teal);background:rgba(30,167,160,.10);border:1px solid rgba(30,167,160,.30);
  padding:8px 16px;border-radius:999px;margin-bottom:22px;font-weight:600}
.grad{background:linear-gradient(100deg,var(--teal),var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}
.text-muted{color:var(--muted)}
.text-teal{color:var(--teal)}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;
  padding:13px 24px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .3s var(--ease),background .2s ease,border-color .2s ease,box-shadow .3s ease;white-space:nowrap}
.btn:hover{transform:translateY(-3px)}
.btn-primary{background:var(--teal-deep);color:#fff}
.btn-primary:hover{background:var(--teal)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-white{background:#fff;color:var(--navy-1)}
.btn .arw{transition:transform .25s ease}
.btn:hover .arw{transform:translateX(4px)}
.link-arrow{color:var(--teal);font-weight:600;display:inline-flex;align-items:center;gap:8px}
.link-arrow .arw{transition:transform .25s ease}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,24,48,.82);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
.brand img{height:30px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 14px;border-radius:9px;font-size:15px;color:var(--ink);font-weight:500;opacity:.92}
.nav a:hover{color:var(--teal);opacity:1}
.nav a.active{color:var(--teal)}
.header-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);border-radius:9px;
  width:42px;height:42px;color:var(--ink);font-size:20px;cursor:pointer;align-items:center;justify-content:center}
@media(max-width:980px){
  .nav{position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--navy-1);border-bottom:1px solid var(--line);padding:10px 16px 18px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s ease}
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:13px 8px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:inline-flex}
  .header-cta .btn:not(.nav-toggle){display:none}
}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section.tight{padding:56px 0}
.section.alt{background:linear-gradient(180deg,var(--navy-1),var(--navy))}
.section-head{max-width:720px;margin:0 auto 50px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-head p{margin-top:16px;color:var(--muted);font-size:18px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:110px 0 86px;
  background:radial-gradient(1100px 520px at 78% -10%,rgba(30,167,160,.20),transparent 60%),
             radial-gradient(820px 420px at 6% 0%,rgba(232,99,31,.10),transparent 55%)}
.hero.with-img{padding:0}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-media img{border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:34px}.hero{padding:80px 0 60px}}
.hero p.lead{margin-top:22px;max-width:60ch}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px}
.hero-meta span{font-size:13px;color:#cdd9e6;background:rgba(255,255,255,.05);
  border:1px solid var(--line);padding:8px 14px;border-radius:10px}

/* page banner (interior pages) */
.page-banner{position:relative;padding:96px 0 56px;border-bottom:1px solid var(--line);
  background:radial-gradient(900px 360px at 80% -30%,rgba(30,167,160,.18),transparent 60%),var(--navy-1)}
.breadcrumb{font-size:13px;color:var(--muted-2);margin-top:14px}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb span{margin:0 8px;opacity:.5}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.cols-3,.cols-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.cols-2,.cols-3,.cols-4{grid-template-columns:1fr}}

.card{background:linear-gradient(180deg,var(--navy-2),var(--navy-1));border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;transition:transform .3s var(--ease),border-color .25s ease,box-shadow .3s ease}
.card:hover{transform:translateY(-6px);border-color:rgba(30,167,160,.5);box-shadow:var(--shadow)}
.card .ico{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(30,167,160,.12);border:1px solid rgba(30,167,160,.25);color:var(--teal)}
.card .ico svg{width:24px;height:24px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.card .link-arrow{margin-top:16px}

/* feature row */
.feature{display:flex;gap:16px;align-items:flex-start}
.feature .ico{flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:rgba(30,167,160,.12);border:1px solid rgba(30,167,160,.25);color:var(--teal)}
.feature .ico svg{width:22px;height:22px}
.feature h3{font-size:18px;margin-bottom:6px}
.feature p{color:var(--muted);font-size:15px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;border:1px solid var(--line);
  border-radius:var(--radius);padding:30px;background:rgba(255,255,255,.02)}
@media(max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat .n{font-size:34px;font-weight:800;color:#fff}
.stat .n span{color:var(--teal)}
.stat .l{color:var(--muted);font-size:14px;margin-top:4px}

/* media+text split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .media{order:2}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:30px}.split.rev .media{order:0}}
.split .media img{border-radius:var(--radius);border:1px solid var(--line)}
.check-list{list-style:none;margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--ink)}
.check-list li::before{content:"";flex:none;width:22px;height:22px;border-radius:50%;margin-top:2px;
  background:rgba(30,167,160,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231ea7a0' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/14px no-repeat}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.price-grid{grid-template-columns:1fr}}
.price{background:linear-gradient(180deg,var(--navy-2),var(--navy-1));border:1px solid var(--line);
  border-radius:var(--radius);padding:32px;position:relative}
.price.feat{border-color:var(--teal);box-shadow:0 0 0 1px var(--teal),0 24px 50px -28px rgba(30,167,160,.5)}
.price .tag{position:absolute;top:-12px;left:32px;background:var(--orange);color:#fff;font-size:12px;
  font-weight:700;padding:5px 12px;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}
.price h3{font-size:20px}
.price .amt{font-size:36px;font-weight:800;color:#fff;margin:14px 0 4px}
.price .amt small{font-size:15px;color:var(--muted);font-weight:500}
.price ul{list-style:none;margin:20px 0;display:grid;gap:12px}
.price li{display:flex;gap:10px;color:var(--muted);font-size:15px}
.price li::before{content:"✓";color:var(--teal);font-weight:800}

/* ---------- faq (CSS-only) ---------- */
.faq{display:grid;gap:14px;max-width:820px;margin:0 auto}
.faq details{background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:600;font-size:17px;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--teal);font-size:24px;font-weight:400;transition:transform .25s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 24px 22px;color:var(--muted);font-size:15px}

/* ---------- blog ---------- */
.post-card{background:var(--navy-1);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .3s var(--ease),border-color .25s ease,box-shadow .3s ease;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-6px);border-color:rgba(30,167,160,.5);box-shadow:var(--shadow)}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .thumb img{transform:scale(1.05)}
.post-card .pc-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.tagline{font-size:12px;color:var(--teal);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.post-card h3{font-size:19px}
.post-meta{font-size:13px;color:var(--muted-2);margin-top:auto}

/* ---------- article / prose ---------- */
.prose{font-size:17px;color:#d4deea;line-height:1.8}
.prose h2{font-size:28px;margin:38px 0 14px;color:#fff}
.prose h3{font-size:22px;margin:28px 0 10px;color:#fff}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 18px 22px;display:grid;gap:8px}
.prose a{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
.prose blockquote{border-left:3px solid var(--teal);padding:6px 0 6px 22px;margin:24px 0;color:#fff;font-size:20px;font-style:italic}
.prose img{border-radius:var(--radius);border:1px solid var(--line);margin:26px 0}
.prose code{background:var(--navy-2);border:1px solid var(--line);padding:2px 7px;border-radius:6px;font-size:.9em}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(110deg,var(--navy-1),#13233f);border:1px solid var(--line);
  border-radius:calc(var(--radius) + 4px);padding:54px 48px;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(600px 220px at 80% 0,rgba(30,167,160,.18),transparent 60%);pointer-events:none}
.cta-band h2{position:relative}
.cta-band .btns{margin-top:26px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative}

/* ---------- contact form ---------- */
.form{display:grid;gap:16px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:620px){.form .row{grid-template-columns:1fr}}
.form label{display:block;font-size:14px;color:var(--muted);margin-bottom:7px}
.form input,.form textarea,.form select{width:100%;background:var(--navy-2);border:1px solid var(--line-2);
  border-radius:var(--radius-sm);padding:13px 15px;color:var(--ink);font:inherit;font-size:15px;transition:border-color .2s ease}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--teal)}
.form textarea{min-height:140px;resize:vertical}

/* ---------- footer ---------- */
.site-footer{background:#0c1426;border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
.site-footer img.flogo{height:30px;margin-bottom:16px}
.site-footer p{color:var(--muted);font-size:15px}
.fcol h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2);margin-bottom:16px}
.fcol a{display:block;color:var(--muted);font-size:15px;padding:6px 0}
.fcol a:hover{color:var(--teal)}
.foot-bottom{border-top:1px solid var(--line);margin-top:48px;padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:var(--muted-2);font-size:13px}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--orange);margin:0 8px;vertical-align:middle}

/* ---------- reveal on scroll (only when JS is on, so no-JS shows everything) ---------- */
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .7s var(--ease)}
html.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
body{animation:pageIn .5s ease both}
@keyframes pageIn{from{opacity:0}to{opacity:1}}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  body{animation:none}
  *{transition:none !important}
}
.mt-0{margin-top:0}.mt-4{margin-top:28px}.mb-0{margin-bottom:0}