/* ============================================================
   PrismaVision — company site
   Minimal prism / spectrum motif, light + dark themes.
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}

/* ---------------- design tokens ---------------- */
:root{
  /* surfaces */
  --bg:#09090b;
  --bg-soft:#0d0d11;
  --surface:#131317;
  --surface-1:#131317;          /* alias used by product-page SVGs */
  --surface-2:#1a1a20;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  /* text */
  --text:#f5f5f6;
  --text-soft:#c6c6cd;
  --text-mute:#86868f;
  /* brand — accent-bright shifts per theme so it stays text-legible */
  --accent:#7c83ff;
  --accent-bright:#9da3ff;
  --accent-soft:rgba(124,131,255,.13);
  /* product brand hues — constant across both themes, match the concept diagrams */
  --astraline:#4dd4e8;
  --smartinsight:#9da3ff;
  --polaris:#ffb057;
  /* chrome */
  --nav-bg:rgba(9,9,11,.72);
  --nav-bg-scroll:rgba(9,9,11,.9);
  --spectrum:linear-gradient(90deg,#ff6b6b,#ffa94d,#ffd43b,#51cf66,#4dd4e8,#4d8bf0,#9775fa);
  --maxw:1160px;
  --nav-h:68px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  color-scheme:dark;
}

:root[data-theme="light"]{
  --bg:#fafaf9;
  --bg-soft:#f2f2f0;
  --surface:#ffffff;
  --surface-1:#ffffff;
  --surface-2:#f2f2f0;
  --border:rgba(18,18,23,.10);
  --border-strong:rgba(18,18,23,.18);
  --text:#1a1a1f;
  --text-soft:#46464d;
  --text-mute:#6c6c75;
  --accent:#5b62e8;
  --accent-bright:#5b62e8;
  --accent-soft:rgba(91,98,232,.10);
  --nav-bg:rgba(250,250,249,.72);
  --nav-bg-scroll:rgba(250,250,249,.88);
  color-scheme:light;
}

/* theme cross-fade */
html,body,.nav,.stat,.flow-figure,.product-card,.mp-card,
.nav-contact,.theme-toggle,.p-status{
  transition:background-color .25s ease,border-color .25s ease,color .25s ease;
}
svg *{transition:fill .25s ease,stroke .25s ease;}

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--nav-h) + 18px);
  -webkit-text-size-adjust:100%;
}
body{
  font-family:var(--font);background:var(--bg);color:var(--text);
  line-height:1.65;font-size:16px;font-weight:400;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
svg{display:block;}
::selection{background:var(--accent);color:#fff;}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}

.skip-link{
  position:absolute;left:-999px;top:0;z-index:100;
  background:var(--accent);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;font-size:.9rem;
}
.skip-link:focus{left:0;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px;}

/* ---------------- nav ---------------- */
.nav{
  position:sticky;top:0;z-index:50;height:var(--nav-h);display:flex;align-items:center;
  background:var(--nav-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .25s,background .25s;
}
.nav.is-scrolled{border-bottom-color:var(--border);background:var(--nav-bg-scroll);}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:18px;height:18px;flex:none;background:var(--spectrum);
  clip-path:polygon(50% 0,100% 100%,0 100%);filter:saturate(1.08);
}
.brand-name{font-weight:600;font-size:1.05rem;letter-spacing:-.01em;color:var(--text);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-contact{
  font-size:.9rem;font-weight:500;color:var(--text-soft);
  padding:8px 16px;border-radius:999px;white-space:nowrap;
  border:1px solid var(--border-strong);transition:border-color .2s,color .2s,background .2s;
}
.nav-contact:hover{color:var(--text);border-color:var(--accent);background:var(--accent-soft);}

/* theme toggle */
.theme-toggle{
  width:36px;height:36px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--border-strong);background:transparent;
  color:var(--text-soft);cursor:pointer;padding:0;
  transition:border-color .2s,color .2s,background .2s;
}
.theme-toggle:hover{color:var(--text);border-color:var(--accent);background:var(--accent-soft);}
.theme-toggle svg{width:16px;height:16px;}
.theme-toggle .icon-sun{display:none;}
.theme-toggle .icon-moon{display:block;}
:root[data-theme="light"] .theme-toggle .icon-sun{display:block;}
:root[data-theme="light"] .theme-toggle .icon-moon{display:none;}

/* ---------------- sections ---------------- */
.section{padding:clamp(74px,11vw,134px) 0;}
.section--alt{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--pc,var(--accent-bright));margin-bottom:22px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--pc,var(--accent));opacity:.75;}
h1,h2,h3{font-weight:600;letter-spacing:-.022em;line-height:1.18;}
.section-title{font-size:clamp(1.7rem,3.4vw,2.5rem);max-width:24ch;margin-bottom:24px;}
.lead{font-size:clamp(1rem,1.4vw,1.13rem);color:var(--text-soft);max-width:64ch;}
.lead + .lead{margin-top:18px;}

/* ---------------- hero ---------------- */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(54px,9vw,100px) 0 clamp(62px,10vw,112px);
  border-bottom:1px solid var(--border);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 420px at 82% 36%,var(--accent-soft),transparent 70%);
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:46px;align-items:center;}
.hero-eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:.8rem;font-weight:500;letter-spacing:.04em;color:var(--text-mute);margin-bottom:26px;
}
.hero-eyebrow::before{
  content:"";width:9px;height:9px;flex:none;border-radius:50%;
  background:conic-gradient(#ff6b6b,#ffd43b,#51cf66,#4dd4e8,#4d8bf0,#9775fa,#ff6b6b);
}
.hero h1{font-size:clamp(2.05rem,4.5vw,3.4rem);letter-spacing:-.03em;margin-bottom:26px;}
.hero-sub{font-size:clamp(1.02rem,1.5vw,1.2rem);color:var(--text-soft);max-width:54ch;line-height:1.62;}
.hero-rule{margin-top:36px;width:150px;height:3px;border-radius:3px;background:var(--spectrum);opacity:.92;}

/* prism motif */
.prism{width:100%;height:auto;max-width:520px;margin-left:auto;}
@keyframes pv-float{0%,100%{transform:translateY(0);}50%{transform:translateY(-7px);}}
@keyframes pv-shimmer{0%,100%{opacity:.45;}50%{opacity:1;}}
@keyframes pv-pulse{0%,100%{opacity:.45;}50%{opacity:.9;}}
.prism .dot{animation:pv-float 8s ease-in-out infinite;transform-box:fill-box;transform-origin:center;}
.prism .dot:nth-child(3n){animation-duration:10.5s;}
.prism .dot:nth-child(3n+1){animation-duration:12s;animation-delay:-3s;}
.prism .dot:nth-child(4n){animation-delay:-5.5s;}
.prism .dot:nth-child(5n){animation-delay:-2s;}
.prism .lens{animation:pv-pulse 6s ease-in-out infinite;}
.prism .ray{animation:pv-shimmer 5s ease-in-out infinite;}

/* ---------------- stat section ---------------- */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px;}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px 28px;}
.stat-num{
  display:block;font-weight:700;letter-spacing:-.02em;line-height:1;
  font-size:clamp(1.85rem,2.9vw,2.5rem);font-variant-numeric:tabular-nums;
  background:var(--spectrum);-webkit-background-clip:text;background-clip:text;color:transparent;
}
:root[data-theme="light"] .stat-num{
  background:none;color:var(--text);-webkit-text-fill-color:var(--text);
}
.stat-label{display:block;margin-top:15px;font-size:1.04rem;font-weight:600;color:var(--text);}
.stat-sub{display:block;margin-top:6px;font-size:.92rem;color:var(--text-mute);}

/* ---------------- what we do : vertical flow ---------------- */
.flow{display:flex;flex-direction:column;gap:clamp(40px,6vw,78px);margin-top:58px;}
.flow-step{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,60px);align-items:center;}
.flow-step.reverse .flow-figure{order:2;}
.flow-figure{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:clamp(20px,3vw,36px);}
.flow-figure svg{width:100%;height:auto;display:block;}
.flow-num{
  display:block;font-size:clamp(2.5rem,5vw,3.5rem);font-weight:600;line-height:1;
  letter-spacing:-.03em;font-variant-numeric:tabular-nums;margin-bottom:18px;
  color:transparent;-webkit-text-stroke:1.3px var(--accent);
}
.flow-text h3{font-size:clamp(1.3rem,2.3vw,1.8rem);margin-bottom:15px;}
.flow-text p{font-size:clamp(1rem,1.35vw,1.1rem);color:var(--text-soft);line-height:1.68;max-width:46ch;}

/* ---------------- products : three distinct cards (home) ---------------- */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:54px;}
.product-card{
  --pc:var(--accent);
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:30px 26px 26px;transition:border-color .25s,transform .25s,background .25s;
}
.product-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--pc);opacity:.9;}
.product-card:hover{border-color:var(--pc);transform:translateY(-4px);background:var(--surface-2);}
.product-glyph{width:42px;height:42px;color:var(--pc);margin-bottom:20px;}
.product-role{font-size:.74rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--pc);}
.product-card h3{font-size:1.5rem;font-weight:600;letter-spacing:-.02em;margin:7px 0 12px;}
.product-card p{font-size:.96rem;color:var(--text-soft);line-height:1.62;flex:1;}
.product-link{
  margin-top:24px;font-size:.92rem;font-weight:600;color:var(--pc);
  display:inline-flex;align-items:center;gap:7px;
}
.product-link .arrow{transition:transform .2s;}
.product-card:hover .product-link .arrow{transform:translateX(4px);}
.c-astraline{--pc:var(--astraline);}
.c-smart{--pc:var(--smartinsight);}
.c-polaris{--pc:var(--polaris);}

/* ================= product pages ================= */

/* hero — copy left, concept diagram right */
.p-hero{
  position:relative;overflow:hidden;
  padding:clamp(52px,8vw,94px) 0 clamp(58px,9vw,104px);
  border-bottom:1px solid var(--border);
}
.p-hero-grid{
  display:grid;grid-template-columns:1.04fr .96fr;
  gap:clamp(36px,5vw,64px);align-items:center;
}
.p-status{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;
  border:1px solid var(--border-strong);background:var(--surface);
  font-size:.72rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-mute);
}
.p-status .pulse{
  width:6px;height:6px;flex:none;border-radius:50%;
  background:var(--pc,var(--accent));animation:pv-pulse 2.4s ease-in-out infinite;
}
.p-name{
  font-size:clamp(2.6rem,5.6vw,4.2rem);letter-spacing:-.035em;line-height:1.02;
  margin-top:22px;color:var(--pc,var(--text));
}
.p-tagline{
  margin-top:22px;font-size:clamp(1.15rem,1.8vw,1.42rem);
  line-height:1.4;letter-spacing:-.015em;color:var(--text);max-width:30ch;
}
.p-tagline .accent{color:var(--pc,var(--accent));font-weight:600;}
.p-blurb{
  margin-top:18px;font-size:clamp(1rem,1.35vw,1.08rem);
  line-height:1.66;color:var(--text-soft);max-width:50ch;
}
.p-visual{width:100%;max-width:520px;margin-left:auto;}
.p-visual svg{width:100%;height:auto;display:block;}

/* role + principles */
.p-section{padding:clamp(60px,8.5vw,108px) 0;border-top:1px solid var(--border);}
.p-role-grid{
  display:grid;grid-template-columns:.85fr 1.15fr;
  gap:clamp(34px,5.5vw,80px);align-items:start;
}
.p-role h2{font-size:clamp(1.5rem,2.6vw,2.05rem);line-height:1.2;}
.p-role p{
  margin-top:16px;font-size:clamp(1rem,1.35vw,1.1rem);
  color:var(--text-soft);line-height:1.66;max-width:54ch;
}
.principles{display:flex;flex-direction:column;}
.principle{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:22px 0;border-top:1px solid var(--border);
}
.principle:last-child{border-bottom:1px solid var(--border);}
.principle-no{
  font-size:.78rem;font-weight:600;letter-spacing:.07em;
  color:var(--pc,var(--text-mute));padding-top:3px;
}
.principle h3{font-size:1.08rem;font-weight:600;letter-spacing:-.01em;}
.principle p{margin-top:7px;font-size:.96rem;color:var(--text-soft);line-height:1.62;}

/* more products — cross-links */
.more-products{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;}
.mp-card{
  --mpc:var(--accent);
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:26px;transition:border-color .25s,transform .25s,background .25s;
}
.mp-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--mpc);opacity:.9;}
.mp-card:hover{border-color:var(--mpc);transform:translateY(-4px);background:var(--surface-2);}
.mp-card.astraline{--mpc:var(--astraline);}
.mp-card.smartinsight{--mpc:var(--smartinsight);}
.mp-card.polaris{--mpc:var(--polaris);}
.mp-glyph{height:118px;margin:-4px -6px 14px;}
.mp-glyph svg{width:100%;height:100%;}
.mp-tag{font-size:.7rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--text-mute);}
.mp-name{font-size:1.4rem;font-weight:600;letter-spacing:-.02em;margin:8px 0 3px;}
.mp-role{font-size:.8rem;font-weight:600;letter-spacing:.05em;color:var(--mpc);}
.mp-desc{margin-top:12px;font-size:.95rem;color:var(--text-soft);line-height:1.6;flex:1;}
.mp-foot{
  margin-top:20px;display:flex;align-items:center;justify-content:space-between;
  font-size:.86rem;font-weight:600;color:var(--mpc);
}
.mp-foot .arrow{transition:transform .2s;}
.mp-card:hover .mp-foot .arrow{transform:translateX(4px);}

/* ---------------- footer ---------------- */
.footer{border-top:1px solid var(--border);background:var(--bg-soft);padding:62px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-tag{font-size:.94rem;color:var(--text-mute);max-width:36ch;}
.footer-col h4{
  font-size:.76rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-mute);margin-bottom:16px;
}
.footer-col a{display:block;width:fit-content;font-size:.96rem;color:var(--text-soft);margin-bottom:11px;transition:color .2s;}
.footer-col a:hover{color:var(--text);}
.footer-mail{font-size:1.04rem !important;color:var(--text) !important;font-weight:500;}
.footer-mail:hover{color:var(--accent-bright) !important;}
.spectrum-line{margin-top:46px;width:100%;height:2px;background:var(--spectrum);border-radius:2px;opacity:.5;}
.footer-bottom{
  margin-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.84rem;color:var(--text-mute);
}

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

/* ---------------- responsive ---------------- */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:12px;}
  .prism{max-width:360px;margin:14px auto 0;}
  .p-hero-grid{grid-template-columns:1fr;gap:34px;}
  .p-visual{margin:6px auto 0;max-width:440px;}
  .p-role-grid{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:760px){
  .flow-step{grid-template-columns:1fr;gap:22px;}
  .flow-step.reverse .flow-figure{order:0;}
}
@media (max-width:720px){
  .stat-grid,.products,.more-products{grid-template-columns:1fr;}
  .container{padding:0 20px;}
  .nav-contact{padding:7px 13px;}
  .principle{grid-template-columns:1fr;gap:6px;}
  .principle-no{padding-top:0;}
}
@media (max-width:480px){
  .footer-grid{grid-template-columns:1fr;}
  .brand-name{font-size:1rem;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;}
  .reveal{transition:none;opacity:1;transform:none;}
}