/* ==========================================================================
   FRANKCAS — Lighting Control Systems
   Design system: dark premium tech
   Palette derived from the FRANKCAS logo beam gradient + X2 dashboard UI
   ========================================================================== */

:root{
  /* --- Surfaces (matched to the X2 dashboard) --- */
  --bg:            #070A0F;
  --bg-1:          #0A0E15;
  --bg-2:          #0E141D;
  --surface:       #111926;
  --surface-2:     #16202F;
  --line:          #1E2A3B;
  --line-2:        #2A3A50;
  --line-soft:     rgba(255,255,255,.07);

  /* --- Text --- */
  --text:          #E8EDF5;
  --text-2:        #A7B4C6;
  --text-3:        #6B7C93;

  /* --- Brand: the logo beam --- */
  --beam-1:        #E2452A;   /* base of the A — red-orange */
  --beam-2:        #E37929;
  --beam-3:        #E28628;   /* signature amber */
  --beam-4:        #DEA52A;
  --beam-5:        #D9C228;   /* apex — gold */
  --amber:         #E28628;
  --gold:          #D9C228;
  --indigo:        #393283;   /* logo strapline */
  --ink:           #221F1F;   /* logo wordmark */

  /* --- Accents from the dashboard --- */
  --cyan:          #22D3EE;
  --cyan-dim:      #0E7490;
  --green:         #34D399;
  --red:           #F87171;

  --beam: linear-gradient(160deg, var(--beam-5) 0%, var(--beam-3) 45%, var(--beam-1) 100%);
  --beam-h: linear-gradient(90deg, var(--beam-1) 0%, var(--beam-3) 50%, var(--beam-5) 100%);

  /* --- Type --- */
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* --- Metrics --- */
  --wrap: 1240px;
  --r: 14px;
  --r-sm: 9px;
  --shadow: 0 18px 50px -12px rgba(0,0,0,.7);
  --nav-h: 74px;
}

/* ========================= Reset ========================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 20px)}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.02em;font-weight:650}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}

/* ========================= Layout ========================= */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:24px}
.section{padding:clamp(64px,9vw,120px) 0}
.section--tight{padding:clamp(48px,6vw,80px) 0}
.stack-sm > * + *{margin-top:12px}
.stack   > * + *{margin-top:20px}
.stack-lg> * + *{margin-top:36px}

/* ========================= Type scale ========================= */
.display{font-size:clamp(2.5rem,6.2vw,4.6rem);font-weight:700;letter-spacing:-.035em;line-height:1.03}
.h1{font-size:clamp(2.1rem,4.6vw,3.4rem);letter-spacing:-.03em;line-height:1.08}
.h2{font-size:clamp(1.7rem,3.2vw,2.5rem);letter-spacing:-.025em;line-height:1.14}
.h3{font-size:clamp(1.15rem,1.8vw,1.4rem);letter-spacing:-.015em}
.lead{font-size:clamp(1.02rem,1.35vw,1.2rem);color:var(--text-2);line-height:1.7}
.small{font-size:.875rem}
.muted{color:var(--text-2)}
.dim{color:var(--text-3)}

.eyebrow{
  font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;color:var(--amber);display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--beam-h);flex:none}
.eyebrow--center{justify-content:center}

.grad{
  background:var(--beam-h);-webkit-background-clip:text;background-clip:text;
  color:transparent;
}

/* ========================= Buttons ========================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 24px;border-radius:100px;font-weight:600;font-size:.94rem;
  transition:transform .18s cubic-bezier(.2,.8,.3,1), box-shadow .18s, background .18s, border-color .18s, color .18s;
  white-space:nowrap;border:1px solid transparent;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--beam-h);color:#1A0E05;box-shadow:0 8px 26px -8px rgba(226,134,40,.65)}
.btn--primary:hover{box-shadow:0 14px 34px -8px rgba(226,134,40,.8)}
.btn--ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:var(--amber);color:#fff;background:rgba(226,134,40,.08)}
.btn--cyan{background:var(--cyan);color:#04252C;box-shadow:0 8px 26px -8px rgba(34,211,238,.5)}
.btn--sm{padding:9px 18px;font-size:.85rem}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

.arrow-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--amber);font-size:.94rem}
.arrow-link svg{transition:transform .2s}
.arrow-link:hover svg{transform:translateX(4px)}

/* ========================= Nav ========================= */
.nav{
  position:sticky;top:0;z-index:200;height:var(--nav-h);
  background:rgba(7,10,15,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-soft);
}
.nav__in{height:100%;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{width:34px;height:34px;object-fit:contain}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__name{font-weight:750;font-size:1.02rem;letter-spacing:.01em}
.brand__sub{font-family:var(--mono);font-size:.53rem;letter-spacing:.19em;color:var(--text-3);text-transform:uppercase;margin-top:3px}

.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__links a{
  padding:9px 15px;border-radius:9px;font-size:.9rem;font-weight:500;color:var(--text-2);
  transition:color .16s, background .16s;
}
.nav__links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav__links a.is-active{color:var(--text);background:rgba(255,255,255,.06)}
.nav__cta{margin-left:12px}

.burger{display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center}
.burger span{display:block;width:18px;height:1.5px;background:var(--text);position:relative;transition:.2s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--text);transition:.2s}
.burger span::before{top:-6px}.burger span::after{top:6px}
.burger.is-open span{background:transparent}
.burger.is-open span::before{top:0;transform:rotate(45deg)}
.burger.is-open span::after{top:0;transform:rotate(-45deg)}

@media(max-width:940px){
  .nav__links{
    position:fixed;inset:var(--nav-h) 0 auto 0;flex-direction:column;align-items:stretch;
    background:var(--bg-1);border-bottom:1px solid var(--line);padding:14px 24px 24px;gap:2px;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.22s;
  }
  .nav__links.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav__links a{padding:13px 14px;font-size:1rem}
  .nav__cta{margin:10px 0 0}
  .burger{display:flex}
}

/* ========================= Hero ========================= */
.hero{position:relative;overflow:hidden;padding:clamp(72px,10vw,132px) 0 clamp(64px,8vw,104px)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}
@media(max-width:960px){.hero__grid{grid-template-columns:1fr;gap:44px}}

/* the light beam behind the hero — echoes the logo mark */
.beamfx{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.beamfx::before{
  content:"";position:absolute;top:-24%;left:50%;width:min(780px,92vw);height:150%;
  transform:translateX(-50%);
  background:conic-gradient(from 180deg at 50% 0%,
    transparent 0deg, rgba(217,194,40,.16) 6deg, rgba(226,134,40,.22) 12deg,
    rgba(226,69,42,.12) 18deg, transparent 24deg);
  filter:blur(24px);opacity:.85;
}
.beamfx::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(226,134,40,.13), transparent 70%),
    radial-gradient(45% 45% at 88% 20%, rgba(34,211,238,.09), transparent 70%),
    radial-gradient(50% 50% at 8% 70%, rgba(57,50,131,.16), transparent 70%);
}
.gridfx{
  position:absolute;inset:0;pointer-events:none;z-index:0;opacity:.45;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 20%,transparent 75%);
}
.hero > .wrap{position:relative;z-index:1}

.pill{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 11px;border-radius:100px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:.78rem;font-weight:550;color:var(--text-2);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(52,211,153,.16)}

.hero__stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:8px}
.stat__n{font-size:1.85rem;font-weight:700;letter-spacing:-.03em;line-height:1}
.stat__l{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-top:7px}

/* ========================= Cards ========================= */
.card{
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--r);
  transition:border-color .2s, transform .2s, box-shadow .2s;
}
.card--hover:hover{border-color:rgba(226,134,40,.42);transform:translateY(-3px);box-shadow:var(--shadow)}
.card__pad{padding:26px}

.glass{
  background:rgba(17,25,38,.62);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:var(--r);
}

.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1000px){.grid--4{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:660px){.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}}

/* feature card */
.feat{padding:28px}
.feat__ico{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(226,134,40,.11);border:1px solid rgba(226,134,40,.26);color:var(--amber);
}
.feat__ico svg{width:21px;height:21px}
.feat h3{margin-bottom:9px}
.feat p{color:var(--text-2);font-size:.94rem}

/* ========================= Product cards ========================= */
.pcard{display:flex;flex-direction:column;overflow:hidden;height:100%}
.pcard__img{
  position:relative;aspect-ratio:4/3;display:grid;place-items:center;padding:26px;
  background:radial-gradient(65% 65% at 50% 42%,#1B2534,#0B1119);
  border-bottom:1px solid var(--line);overflow:hidden;
}
.pcard__img img{max-height:100%;width:auto;object-fit:contain;transition:transform .35s cubic-bezier(.2,.8,.3,1);
  filter:drop-shadow(0 12px 28px rgba(0,0,0,.55))}
.pcard--hover:hover .pcard__img img{transform:scale(1.06)}
.pcard__brand{
  position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-3);border:1px solid var(--line);border-radius:100px;
  padding:4px 9px;background:rgba(7,10,15,.7);
}
.pcard__body{padding:19px 20px 22px;display:flex;flex-direction:column;gap:7px;flex:1}
.pcard__sku{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--amber)}
.pcard__name{font-size:1rem;font-weight:620;letter-spacing:-.012em;line-height:1.3}
.pcard__tag{font-size:.845rem;color:var(--text-3);line-height:1.5;flex:1}
.pcard__foot{display:flex;align-items:center;gap:7px;font-size:.82rem;font-weight:600;color:var(--text-2);margin-top:6px}
.pcard--hover:hover .pcard__foot{color:var(--amber)}

/* ========================= Filters ========================= */
.filters{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.chip{
  padding:8px 16px;border-radius:100px;border:1px solid var(--line);
  font-size:.85rem;font-weight:550;color:var(--text-2);background:rgba(255,255,255,.02);
  transition:.16s;
}
.chip:hover{border-color:var(--text-3);color:var(--text)}
.chip.is-on{background:var(--beam-h);border-color:transparent;color:#1A0E05;font-weight:650}
.chip__n{opacity:.6;margin-left:6px;font-family:var(--mono);font-size:.72rem}

.search{
  position:relative;flex:1;min-width:220px;max-width:340px;
}
.search input{
  width:100%;padding:10px 14px 10px 38px;border-radius:100px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text);font-size:.88rem;font-family:inherit;
}
.search input::placeholder{color:var(--text-3)}
.search input:focus{outline:none;border-color:var(--amber);background:rgba(226,134,40,.05)}
.search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-3)}

/* ========================= Product detail ========================= */
.pdp{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.5vw,64px);align-items:start}
@media(max-width:900px){.pdp{grid-template-columns:1fr;gap:32px}}
.pdp__stage{
  position:sticky;top:calc(var(--nav-h) + 24px);
  aspect-ratio:1;border-radius:var(--r);border:1px solid var(--line);
  background:radial-gradient(65% 65% at 50% 42%,#1C2637,#090D14);
  display:grid;place-items:center;padding:clamp(28px,5vw,64px);overflow:hidden;
}
.pdp__stage img{max-height:100%;width:auto;object-fit:contain;filter:drop-shadow(0 24px 50px rgba(0,0,0,.6))}
@media(max-width:900px){.pdp__stage{position:static;aspect-ratio:4/3}}

.spec-table{width:100%;border-collapse:collapse;font-size:.9rem}
.spec-table tr{border-bottom:1px solid var(--line)}
.spec-table tr:last-child{border-bottom:0}
.spec-table th{
  text-align:left;font-weight:500;color:var(--text-3);padding:12px 18px 12px 0;
  width:44%;vertical-align:top;font-size:.855rem;
}
.spec-table td{padding:12px 0;color:var(--text);vertical-align:top;font-family:var(--mono);font-size:.83rem;line-height:1.55}

.ticks li{position:relative;padding-left:28px;color:var(--text-2);font-size:.94rem}
.ticks li + li{margin-top:11px}
.ticks li::before{
  content:"";position:absolute;left:0;top:.52em;width:13px;height:7px;
  border-left:2px solid var(--amber);border-bottom:2px solid var(--amber);
  transform:rotate(-45deg);
}

.note{
  border-left:2px solid var(--amber);padding:12px 0 12px 16px;
  background:rgba(226,134,40,.05);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:.88rem;color:var(--text-2);
}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.82rem;color:var(--text-3)}
.crumbs a:hover{color:var(--amber)}
.crumbs span{opacity:.4}

/* datasheet button */
.dsheet{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--surface);transition:.2s;
}
.dsheet:hover{border-color:var(--amber);background:var(--surface-2);transform:translateY(-2px)}
.dsheet__ico{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;flex:none;
  background:rgba(226,134,40,.12);color:var(--amber)}
.dsheet__t{font-weight:620;font-size:.94rem}
.dsheet__s{font-size:.78rem;color:var(--text-3);font-family:var(--mono)}

/* ========================= Platform / screenshots ========================= */
.shot{
  border-radius:var(--r);border:1px solid var(--line);overflow:hidden;
  background:var(--bg-1);box-shadow:var(--shadow);
}
.shot img{width:100%}
.shot--tilt{transform:perspective(1600px) rotateY(-6deg) rotateX(2.5deg);transition:transform .5s}
.shot--tilt:hover{transform:perspective(1600px) rotateY(0) rotateX(0)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,72px);align-items:center}
.split--rev > *:first-child{order:2}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:34px}.split--rev > *:first-child{order:0}}

.modlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px}
.mod{
  display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);font-size:.86rem;font-weight:550;
}
.mod i{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}

/* KPI strip mimicking the dashboard */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.kpi{padding:16px 18px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);
  border-left:2px solid var(--cyan)}
.kpi--amber{border-left-color:var(--amber)}
.kpi--green{border-left-color:var(--green)}
.kpi--indigo{border-left-color:#6D62D6}
.kpi__l{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3)}
.kpi__v{font-size:1.5rem;font-weight:700;margin-top:6px;letter-spacing:-.02em}
.kpi__s{font-size:.72rem;color:var(--text-3);margin-top:2px}

/* ========================= Logos / trust ========================= */
.brands{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.brands span{
  font-family:var(--mono);font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--text-3);border:1px solid var(--line);border-radius:100px;padding:8px 18px;
}

/* ========================= CTA band ========================= */
.cta{
  position:relative;overflow:hidden;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(140deg,#131C2A,#0A0F17);padding:clamp(38px,6vw,68px);text-align:center;
}
.cta::before{
  content:"";position:absolute;top:-60%;left:50%;transform:translateX(-50%);
  width:700px;height:180%;
  background:conic-gradient(from 180deg at 50% 0%,transparent 0deg,rgba(226,134,40,.16) 10deg,transparent 20deg);
  filter:blur(30px);
}
.cta > *{position:relative}

/* ========================= Forms ========================= */
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.82rem;font-weight:600;color:var(--text-2)}
.field label .req{color:var(--amber)}
.field input,.field select,.field textarea{
  padding:12px 15px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text);font-family:inherit;font-size:.93rem;width:100%;
}
.field textarea{resize:vertical;min-height:132px;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--amber);background:rgba(226,134,40,.05)
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field select{appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%236B7C93' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:11px;padding-right:38px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.form-grid .span-2{grid-column:1/-1}
.formnote{font-size:.78rem;color:var(--text-3)}

/* ========================= Footer ========================= */
.foot{border-top:1px solid var(--line);background:var(--bg-1);padding:60px 0 32px;margin-top:40px}
.foot__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
@media(max-width:860px){.foot__grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:520px){.foot__grid{grid-template-columns:1fr}}
.foot h4{font-family:var(--mono);font-size:.68rem;letter-spacing:.17em;text-transform:uppercase;color:var(--text-3);margin-bottom:16px;font-weight:600}
.foot a{color:var(--text-2);font-size:.9rem;display:block;padding:5px 0;transition:color .15s}
.foot a:hover{color:var(--amber)}
.foot__bot{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:.8rem;color:var(--text-3);
}

/* ========================= Utilities ========================= */
.center{text-align:center}
.mx-auto{margin-inline:auto}
.maxw-680{max-width:680px}
.maxw-760{max-width:760px}
.hide{display:none !important}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.8,.3,1),transform .7s cubic-bezier(.2,.8,.3,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* print */
@media print{
  .nav,.foot,.beamfx,.gridfx,.btn{display:none !important}
  body{background:#fff;color:#000}
}