/* ============================================================
   FORISTRA — shared stylesheet
   Palette: near-black canvas, amber-gold accent, cool blue data
   Type: Cinzel (wordmark) · Inter (UI/body) · Cormorant (math/serif)
   ============================================================ */

:root{
  --bg:#08080b;
  --bg-2:#0c0d11;
  --panel:#111318;
  --panel-2:#15171d;
  --line:rgba(255,255,255,.08);
  --line-gold:rgba(224,165,38,.28);
  --gold:#e0a526;
  --gold-bright:#f4bd45;
  --gold-dim:#9a7521;
  --blue:#4f93d6;
  --blue-dim:#2c5c8a;
  --text:#f4f4f5;
  --muted:#a7a8ad;
  --dim:#6a6c74;
  --maxw:1360px;
  --nav-h:88px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 48px}
.serif{font-family:"Cormorant Garamond",Georgia,serif}
.gold{color:var(--gold)}
.eyebrow{
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);font-weight:600;
}

/* ---------- HEADER / NAV ---------- */
#site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(8,8,11,.92),rgba(8,8,11,.55) 70%,transparent);
  backdrop-filter:blur(6px);
  transition:background .35s var(--ease),border-color .35s;
  border-bottom:1px solid transparent;
}
#site-header.solid{
  background:rgba(8,8,11,.96);
  border-bottom:1px solid var(--line);
}
.nav{
  width:100%;max-width:var(--maxw);margin:0 auto;padding:0 48px;
  display:flex;align-items:center;gap:40px;
}
.brand{display:flex;align-items:center;gap:18px;margin-right:auto}
.brand .mark{width:52px;height:auto;flex:none}
.brand .word{display:flex;flex-direction:column;padding-left:18px;border-left:1px solid var(--line)}
.brand .word b{
  font-family:"Cinzel",serif;font-weight:600;font-size:1.6rem;
  letter-spacing:.36em;color:var(--text);line-height:1;padding-left:.36em;
}
.brand .word span{
  font-size:.56rem;letter-spacing:.44em;color:var(--gold);
  margin-top:7px;padding-left:.44em;font-weight:500;
}

.menu{display:flex;align-items:center;gap:38px}
.menu-item{position:relative}
.menu-item > a,.menu-item > button{
  font:inherit;background:none;border:0;cursor:pointer;color:var(--text);
  font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;font-weight:500;
  padding:10px 2px;display:inline-flex;align-items:center;gap:7px;
  transition:color .25s;
}
.menu-item > a:hover,.menu-item > button:hover,
.menu-item.active > a,.menu-item.active > button{color:var(--gold)}
.menu-item .caret{
  width:9px;height:9px;transition:transform .3s var(--ease);opacity:.85;
}
.menu-item.open .caret{transform:rotate(180deg)}
.menu-item.active > a::after,.menu-item.active > button::after{
  content:"";position:absolute;left:2px;right:16px;bottom:2px;height:1.5px;background:var(--gold);
}

/* dropdown */
.dropdown{
  position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(8px);
  min-width:288px;background:rgba(14,15,20,.97);border:1px solid var(--line-gold);
  border-radius:12px;padding:10px;
  box-shadow:0 24px 60px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:.28s var(--ease);
  backdrop-filter:blur(10px);
}
.menu-item.open .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown::before{
  content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);
  width:13px;height:13px;background:rgba(14,15,20,.97);
  border-left:1px solid var(--line-gold);border-top:1px solid var(--line-gold);
}
.dd-link{
  display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:8px;
  color:var(--text);transition:background .2s;
}
.dd-link + .dd-link{border-top:1px solid var(--line)}
.dd-link:hover{background:rgba(224,165,38,.08)}
.dd-link svg{width:26px;height:26px;flex:none;stroke:var(--gold)}
.dd-link .txt{font-size:.95rem;letter-spacing:.01em;flex:1}
.dd-link .chev{width:14px;height:14px;stroke:var(--gold);opacity:.7}

.btn-login{
  border:1px solid var(--gold);color:var(--gold);
  padding:12px 26px;border-radius:6px;font-size:.8rem;letter-spacing:.2em;
  text-transform:uppercase;font-weight:600;transition:.25s;
}
.btn-login:hover{background:var(--gold);color:#0a0a0a}

/* mobile toggle */
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--text);margin:5px 0;transition:.3s}

/* ---------- BREADCRUMB ---------- */
.crumb{
  padding-top:calc(var(--nav-h) + 26px);
  font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);
}
.crumb a{color:var(--dim);transition:color .2s}
.crumb a:hover{color:var(--gold)}
.crumb .sep{margin:0 10px;opacity:.5}
.crumb .here{color:var(--gold)}

/* ---------- BUTTONS / LINKS ---------- */
.cta{
  display:inline-flex;align-items:center;gap:16px;
  color:var(--gold);font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;
  transition:gap .3s var(--ease);
}
.cta svg{width:38px;height:12px;stroke:var(--gold)}
.cta:hover{gap:24px}

/* ---------- PAGE TITLE ---------- */
.page-title{
  font-weight:300;font-size:clamp(3rem,6vw,5.6rem);line-height:.98;letter-spacing:-.02em;margin:0;
}
.page-title .l2{color:var(--gold)}
.rule{width:64px;height:2px;background:var(--gold);margin:30px 0}

/* ---------- HERO (home) ---------- */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,rgba(8,8,11,.75) 20%,rgba(8,8,11,.25) 48%,transparent 66%),
             linear-gradient(180deg,rgba(8,8,11,.4) 0%,transparent 28%,transparent 58%,rgba(8,8,11,.82) 100%)}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero .wrap{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;padding-top:var(--nav-h)}
.hero-grid{display:grid;grid-template-columns:minmax(0,560px) 1fr;gap:40px;align-items:center}
.hero h1{
  font-weight:300;font-size:clamp(3.2rem,6.4vw,6rem);line-height:.98;letter-spacing:-.02em;margin:0;
}
.hero h1 .em{color:var(--gold)}
.hero p.lede{color:var(--muted);max-width:440px;margin:34px 0 40px;font-size:1.05rem}
.hero .rule{margin:34px 0}
.formula{
  position:absolute;top:16%;right:2%;text-align:right;z-index:2;pointer-events:none;
}
.formula .eq{font-family:"Cormorant Garamond",serif;font-size:1.7rem;font-style:italic;color:#e9e9ec}
.formula .sub{color:var(--muted);font-size:.9rem;line-height:1.5;margin-top:10px}

/* feature strip */
.features{position:relative;z-index:2;border-top:1px solid var(--line)}
.features .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding-top:0;padding-bottom:34px}
.feat{padding:36px 34px 0;position:relative}
.feat + .feat::before{content:"";position:absolute;left:0;top:36px;bottom:0;width:1px;background:var(--line)}
.feat .ico{width:56px;height:52px;margin-bottom:22px;stroke:var(--gold);fill:none}
.feat h3{font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;font-weight:600;margin:0 0 12px}
.feat p{color:var(--muted);font-size:.88rem;margin:0}

/* hero footer bar */
.hero-foot{position:relative;z-index:2;border-top:1px solid var(--line)}
.hero-foot .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:20px;padding-bottom:20px}
.pager{display:flex;align-items:center;gap:22px;font-size:.72rem;letter-spacing:.2em;color:var(--dim)}
.pager .dots{display:flex;gap:9px;align-items:center}
.pager .dots i{display:block;width:26px;height:2px;background:var(--line);border-radius:2px}
.pager .dots i.on{background:var(--gold);width:34px}
.scroll-hint{display:flex;align-items:center;gap:14px;font-size:.72rem;letter-spacing:.2em;color:var(--dim)}
.scroll-hint svg{width:12px;height:22px;stroke:var(--gold)}

/* ---------- GENERIC INNER SECTIONS ---------- */
.section{padding:70px 0}
.lede-lg{color:var(--muted);font-size:1.05rem;max-width:420px}

/* split hero for inner pages */
.split{
  display:grid;grid-template-columns:minmax(0,440px) 1fr;gap:56px;align-items:center;
  padding-top:34px;padding-bottom:20px;
}
.split .visual{position:relative;min-height:360px}

/* row list with circular icons */
.rows{border-top:1px solid var(--line)}
.row{display:flex;gap:40px;align-items:center;padding:44px 0;border-bottom:1px solid var(--line)}
.row .badge{
  width:132px;height:132px;flex:none;border-radius:50%;
  border:1px solid var(--line-gold);display:grid;place-items:center;
}
.row .badge svg{width:56px;height:56px;stroke:var(--gold);fill:none}
.row .rtxt{color:var(--muted);max-width:760px;font-size:1rem;border-left:1px solid var(--line);padding-left:40px}

/* highlight banner */
.banner{
  border:1px solid var(--line-gold);border-radius:14px;
  display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:center;
  padding:44px;margin-top:56px;overflow:hidden;
}
.banner .map{opacity:.5}
.banner h2{font-weight:400;color:var(--gold);font-size:1.7rem;margin:0 0 20px}
.banner .rule{margin:0 0 20px}
.banner p{color:var(--muted);margin:0}

/* footer feature strip (solutions pages) */
.solstrip{border-top:1px solid var(--line);margin-top:64px}
.solstrip .grid{display:grid;grid-template-columns:repeat(4,1fr);padding-top:38px;padding-bottom:52px}
.solstrip .col{padding:0 30px;position:relative}
.solstrip .col + .col::before{content:"";position:absolute;left:0;top:0;bottom:6px;width:1px;background:var(--line)}
.solstrip .ico{width:48px;height:44px;stroke:var(--gold);fill:none;margin-bottom:18px}
.solstrip h4{font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;margin:0 0 12px;line-height:1.35}
.solstrip p{color:var(--muted);font-size:.86rem;margin:0}

/* bullet lists */
.tick{margin:26px 0}
.tick li{position:relative;padding-left:26px;margin-bottom:18px;color:var(--muted)}
.tick li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--gold)}
.intro-strong{color:var(--gold);font-weight:500}

/* ---------- STEP PAGES (how it works / data intelligence) ---------- */
.step{border-top:1px solid var(--line);padding:56px 0;display:grid;grid-template-columns:minmax(0,440px) 1fr;gap:56px}
.step .num{display:flex;align-items:flex-start;gap:26px}
.step .num .ring{
  width:58px;height:58px;flex:none;border-radius:50%;border:1px solid var(--gold);
  display:grid;place-items:center;color:var(--gold);font-size:1.4rem;font-weight:300;
}
.step h3{font-weight:400;font-size:1.7rem;margin:0 0 20px}
.step .kicker{color:var(--gold);font-size:.9rem;letter-spacing:.04em;margin:0 0 4px}
.step p{color:var(--muted);font-size:.94rem;margin:0 0 16px}
.diagram{
  border:1px solid var(--line-gold);border-radius:12px;padding:28px;background:rgba(255,255,255,.012);
}

/* generic card grid */
.cardrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px}
.card{border:1px solid var(--line-gold);border-radius:10px;padding:20px;background:rgba(255,255,255,.015)}
.card h5{color:var(--gold);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;margin:0 0 14px;text-align:center}
.card ul li{position:relative;padding-left:16px;margin-bottom:8px;font-size:.82rem;color:var(--muted)}
.card ul li::before{content:"";position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:50%;background:var(--gold)}

/* ---------- EXPERTISE ---------- */
.bio{
  border:1px solid var(--line);border-radius:14px;padding:40px;
  display:grid;grid-template-columns:280px 1fr;gap:44px;margin-top:20px;
}
.bio .photo{border-radius:8px;overflow:hidden;background:#1b1c22;aspect-ratio:3/3.4}
.bio .photo svg{width:100%;height:100%}
.bio h2{font-weight:300;font-size:1.9rem;margin:0 0 22px}
.bio h2 small{color:var(--gold);font-size:1rem;font-weight:400;letter-spacing:.02em}
.bio p{color:var(--muted);font-size:.95rem;margin:0 0 16px}
.books{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:34px}
.book .cover{aspect-ratio:3/4;border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-bottom:18px}
.book h4{font-size:1rem;font-weight:500;margin:0 0 10px}
.book p{color:var(--muted);font-size:.82rem;margin:0 0 14px}
.book .pub{color:var(--gold);font-size:.78rem;letter-spacing:.06em;font-weight:600}

/* ---------- FOOTER ---------- */
#site-footer{border-top:1px solid var(--line);margin-top:90px;padding:56px 0 40px;background:var(--bg-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px}
.foot-brand .word b{font-family:"Cinzel",serif;letter-spacing:.3em;font-size:1.3rem}
.foot-brand p{color:var(--muted);font-size:.86rem;max-width:280px;margin:18px 0 0}
#site-footer h5{font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin:0 0 20px}
#site-footer li{margin-bottom:12px}
#site-footer li a{color:var(--muted);font-size:.9rem;transition:color .2s}
#site-footer li a:hover{color:var(--text)}
.foot-bottom{
  border-top:1px solid var(--line);margin-top:44px;padding-top:26px;
  display:flex;justify-content:space-between;color:var(--dim);font-size:.78rem;letter-spacing:.04em;
}

/* ---------- PAGE HERO WITH REAL BACKGROUND IMAGE ---------- */
.phero{position:relative;background:var(--bg);overflow:hidden}
.phero-art{display:block;width:100%;max-width:var(--maxw);height:auto;margin:0 auto}
.phero-copy{position:absolute;inset:0;display:flex;align-items:center;z-index:2}
.phero-copy .wrap{width:100%}
.phero-text{max-width:47%}
.phero-text .crumb{padding-top:0;margin-bottom:26px}
/* readability fade from the dark left edge */
.phero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,var(--bg) 22%,rgba(8,8,11,.5) 44%,transparent 64%)}
@media(max-width:980px){
  .phero{display:flex;flex-direction:column-reverse}
  .phero-copy{position:static;padding:24px 0 8px}
  .phero::after{display:none}
  .phero-text{max-width:none}
}

/* background-image hero variant (home / company / expertise) */
.bgsec{position:relative;background-repeat:no-repeat}
.bgsec > .wrap{position:relative;z-index:2}
.bgsec::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none}

/* company pages: portrait globe backdrop, top-right */
.company-hero{background-repeat:no-repeat;background-position:top right;background-size:430px auto;min-height:560px;position:relative;overflow:hidden}
.company-hero .wrap{position:relative;z-index:2}
.company-hero-text{max-width:560px;padding-top:10px}
@media(max-width:900px){
  .company-hero{background-size:62% auto;background-position:top right;padding-bottom:300px;min-height:auto}
  .company-hero-text{max-width:none}
}

/* fade-in on scroll */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- RESPONSIVE ---------- */
@media(max-width:1100px){
  .hero-grid{grid-template-columns:1fr}
  .formula{position:static;text-align:left;margin-top:30px}
  .features .wrap{grid-template-columns:repeat(2,1fr);gap:0 0}
  .feat:nth-child(3)::before,.feat:nth-child(2)::before{content:none}
  .solstrip .grid,.foot-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .split,.step,.bio{grid-template-columns:1fr;gap:34px}
  .banner{grid-template-columns:1fr}
  .books{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .wrap,.nav{padding-left:24px;padding-right:24px}
  .menu,.btn-login{display:none}
  .nav-toggle{display:block}
  #site-header .menu.mobile-open{
    display:flex;flex-direction:column;position:absolute;top:var(--nav-h);left:0;right:0;
    background:rgba(10,11,15,.99);border-top:1px solid var(--line);padding:20px 24px 30px;gap:6px;align-items:flex-start;
  }
  .menu.mobile-open .dropdown{position:static;transform:none;opacity:1;visibility:visible;min-width:0;border:0;box-shadow:none;padding:4px 0 10px 18px}
  .menu.mobile-open .dropdown::before{content:none}
  .menu.mobile-open .menu-item{width:100%}
  .brand .word span{display:none}
  .row{flex-direction:column;text-align:center}
  .row .rtxt{border-left:0;border-top:1px solid var(--line);padding:26px 0 0}
  .cardrow{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr}
  .features .wrap{grid-template-columns:1fr}
  .feat::before{content:none!important}
}