/* ═══════════════════════════════════════════════════════════════
   BAICUI MACHINERY — Web UI
   Design tokens ported from TomSchimansky/CustomTkinter themes
   (assets/themes/blue.json + dark-blue.json + appearance grays)
   ═══════════════════════════════════════════════════════════════ */

/* ── CTk gray scale (dark appearance) ─────────────────────────── */
:root{
  --ctk-gray10:#1A1A1A; --ctk-gray13:#222222; --ctk-gray17:#2B2B2B;
  --ctk-gray20:#333333; --ctk-gray28:#4A4D50; --ctk-gray38:#565B5E;
  --ctk-entry-dark:#343638;
  --ctk-text:#DCE4EE; --ctk-text-dim:#9DA3A9;
  /* CTk "blue" theme */
  --ctk-blue:#1F6AA5; --ctk-blue-light:#3B8ED0; --ctk-hover:#144870;
  --ctk-hover-light:#36719F;
  --ctk-radius:6px; --ctk-switch-radius:1000px;
  --font-display:'Sora',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}

/* ── DARK (default, = CTk dark appearance) ────────────────────── */
html[data-theme="dark"]{
  --bg:var(--ctk-gray10); --bg-2:#151719; --frame:var(--ctk-gray17);
  --frame-2:var(--ctk-gray13); --top-frame:var(--ctk-gray20);
  --entry-bg:var(--ctk-entry-dark); --border:var(--ctk-gray28); --border-soft:rgba(220,228,238,.08);
  --text:var(--ctk-text); --text-dim:var(--ctk-text-dim);
  --btn:var(--ctk-blue); --btn-hover:var(--ctk-hover); --btn-light:var(--ctk-blue-light);
  --glass:rgba(43,43,43,.55); --glass-brd:rgba(220,228,238,.09);
  --nav-bg:rgba(21,23,25,.72);
  --glow-1:rgba(31,106,165,.22); --glow-2:rgba(59,142,208,.14);
  --shadow:0 24px 60px rgba(0,0,0,.5);
  color-scheme:dark;
}
/* ── LIGHT (= CTk light appearance) ───────────────────────────── */
html[data-theme="light"]{
  --bg:#E9EBEF; --bg-2:#F3F4F7; --frame:#DBDDE2; --frame-2:#E4E6EA; --top-frame:#D3D6DB;
  --entry-bg:#F9F9FA; --border:#979DA2; --border-soft:rgba(26,26,26,.08);
  --text:#14181D; --text-dim:#4C545C;
  --btn:var(--ctk-blue-light); --btn-hover:var(--ctk-hover-light); --btn-light:#5AA2E0;
  --glass:rgba(255,255,255,.62); --glass-brd:rgba(20,24,29,.10);
  --nav-bg:rgba(243,244,247,.78);
  --glow-1:rgba(59,142,208,.16); --glow-2:rgba(31,106,165,.10);
  --shadow:0 24px 60px rgba(20,30,50,.14);
  color-scheme:light;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:auto}
body{
  font-family:var(--font-body);background:var(--bg);color:var(--text);
  overflow-x:hidden;line-height:1.6;-webkit-font-smoothing:antialiased;
  transition:background .4s,color .4s;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--ctk-blue);color:#fff}
.mono{font-family:var(--font-mono)}
.container{width:min(1200px,92vw);margin-inline:auto}
.section{padding:clamp(72px,10vw,130px) 0;position:relative}

/* scrollbar */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-2)}
::-webkit-scrollbar-thumb{background:var(--ctk-blue);border-radius:var(--ctk-switch-radius);border:2px solid var(--bg-2)}

/* ── ambient background ───────────────────────────────────────── */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(600px 400px at 85% -5%,var(--glow-1),transparent 60%),
    radial-gradient(700px 500px at -10% 40%,var(--glow-2),transparent 60%),
    radial-gradient(500px 400px at 60% 110%,var(--glow-1),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--border-soft) 1px,transparent 1px),
                   linear-gradient(90deg,var(--border-soft) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 30%,transparent 75%);
}

/* ── PRELOADER ────────────────────────────────────────────────── */
#preloader{
  position:fixed;inset:0;z-index:9999;background:var(--ctk-gray10);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;
  transition:opacity .6s,visibility .6s;
}
#preloader.done{opacity:0;visibility:hidden}
.pre-logo{position:relative;width:84px;height:84px;display:grid;place-items:center}
.pre-hex{position:absolute;inset:0;width:100%;height:100%;animation:hexspin 3s linear infinite}
.pre-mark{font-family:var(--font-display);font-weight:800;font-size:26px;color:var(--ctk-text)}
@keyframes hexspin{to{transform:rotate(360deg)}}
.pre-word{font-family:var(--font-display);letter-spacing:.5em;font-size:12px;color:var(--ctk-text-dim);text-indent:.5em}
.pre-bar{width:180px;height:4px;border-radius:var(--ctk-switch-radius);background:var(--ctk-gray20);overflow:hidden}
.pre-bar i{display:block;height:100%;width:40%;border-radius:inherit;background:linear-gradient(90deg,var(--ctk-blue),var(--ctk-blue-light));animation:preSlide 1.1s ease-in-out infinite}
@keyframes preSlide{0%{transform:translateX(-110%)}100%{transform:translateX(460%)}}

/* ── cursor glow / progress ───────────────────────────────────── */
#cursor-glow{
  position:fixed;width:520px;height:520px;left:0;top:0;z-index:0;pointer-events:none;
  border-radius:50%;transform:translate(-50%,-50%);opacity:0;transition:opacity .4s;
  background:radial-gradient(circle,var(--glow-2),transparent 65%);
}
#scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1001;background:transparent}
#scroll-progress i{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--ctk-blue),var(--ctk-blue-light),#7CC0F5);box-shadow:0 0 12px var(--glow-1)}

/* ── NAVBAR ───────────────────────────────────────────────────── */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:transparent;transition:background .35s,box-shadow .35s,border-color .35s;
  border-bottom:1px solid transparent;
}
#navbar.scrolled{background:var(--nav-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom-color:var(--glass-brd);box-shadow:0 8px 32px rgba(0,0,0,.18)}
.nav-inner{width:min(1280px,94vw);margin-inline:auto;display:flex;align-items:center;gap:22px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-hex{width:38px;height:38px;filter:drop-shadow(0 4px 10px rgba(31,106,165,.45));transition:transform .5s}
.brand:hover .brand-hex{transform:rotate(360deg)}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt b{font-family:var(--font-display);font-size:16px;letter-spacing:.14em}
.brand-txt small{font-size:10px;color:var(--text-dim);letter-spacing:.04em}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{
  padding:8px 14px;border-radius:var(--ctk-radius);font-size:14px;font-weight:500;color:var(--text-dim);
  transition:color .25s,background .25s;position:relative;
}
.nav-links a:hover{color:var(--text);background:var(--border-soft)}
.nav-links a.active{color:var(--btn-light)}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--btn-light)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:10px}

/* CTk segmented button */
.ctk-segmented{display:inline-flex;background:var(--frame-2);border:1px solid var(--border);border-radius:var(--ctk-radius);padding:2px;gap:2px}
.ctk-segmented button{
  font-family:var(--font-body);font-size:11.5px;font-weight:600;color:var(--text-dim);
  background:transparent;border:0;border-radius:4px;padding:5px 10px;cursor:pointer;transition:all .25s;
}
.ctk-segmented button:hover{color:var(--text)}
.ctk-segmented button.active{background:var(--btn);color:var(--ctk-text);box-shadow:0 2px 8px rgba(31,106,165,.4)}

/* CTk switch */
.ctk-switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none}
.ctk-switch input{position:absolute;opacity:0;pointer-events:none}
.ctk-switch-track{
  width:40px;height:20px;border-radius:var(--ctk-switch-radius);background:var(--ctk-gray28);
  position:relative;transition:background .3s;flex-shrink:0;border:1px solid transparent;
}
html[data-theme="light"] .ctk-switch-track{background:#939BA2}
.ctk-switch-thumb{
  position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;
  background:#D5D9DE;transition:transform .3s cubic-bezier(.4,1.6,.4,1),background .3s;box-shadow:0 1px 4px rgba(0,0,0,.4);
}
.ctk-switch input:checked + .ctk-switch-track{background:var(--btn)}
.ctk-switch input:checked + .ctk-switch-track .ctk-switch-thumb{transform:translateX(20px);background:#fff}
.ctk-switch small{font-size:11px;color:var(--text-dim)}
.theme-switch .ctk-switch-track::before{content:"🌙";position:absolute;left:4px;top:50%;transform:translateY(-52%);font-size:8px;opacity:0;transition:opacity .3s}
.theme-switch input:checked + .ctk-switch-track::before{content:"☀️";opacity:1;left:auto;right:19px}

/* CTk buttons */
.ctk-button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-weight:600;font-size:14px;color:var(--ctk-text);
  background:var(--btn);border:1px solid transparent;border-radius:var(--ctk-radius);
  padding:10px 18px;cursor:pointer;transition:background .25s,transform .15s,box-shadow .25s;
  text-align:center;line-height:1.2;
}
.ctk-button:hover{background:var(--btn-hover);transform:translateY(-2px);box-shadow:0 10px 24px rgba(31,106,165,.35)}
.ctk-button:active{transform:translateY(0) scale(.98)}
.ctk-button.primary{background:linear-gradient(135deg,var(--ctk-blue-light),var(--ctk-blue))}
.ctk-button.primary:hover{background:linear-gradient(135deg,#4E9CE0,var(--ctk-hover-light))}
.ctk-button.ghost{background:transparent;border-color:var(--border);color:var(--text)}
.ctk-button.ghost:hover{border-color:var(--btn-light);color:var(--btn-light);background:var(--border-soft)}
.ctk-button.sm{padding:6px 12px;font-size:12px}
.ctk-button-lg{padding:14px 26px;font-size:15px;border-radius:8px}
.nav-cta{padding:8px 16px;font-size:13px}
.wa-icon{
  width:38px;height:38px;display:grid;place-items:center;border-radius:var(--ctk-radius);
  background:#1FA855;color:#fff;transition:transform .25s,box-shadow .25s;flex-shrink:0;
}
.wa-icon:hover{transform:translateY(-2px) scale(1.05);box-shadow:0 8px 20px rgba(31,168,85,.45)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-burger i{width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.nav-burger.open i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open i:nth-child(2){opacity:0}
.nav-burger.open i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── HERO ─────────────────────────────────────────────────────── */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-bg-fallback{
  position:absolute;inset:0;z-index:0;
  background:radial-gradient(ellipse 70% 60% at 70% 40%,var(--glow-1),transparent 65%),
             radial-gradient(ellipse 50% 50% at 20% 80%,var(--glow-2),transparent 60%);
}
.hero.no-webgl .hero-bg-fallback{background-image:url('../assets/factory.jpg');background-size:cover;background-position:center;filter:brightness(.35) saturate(.8)}
.hero.no-webgl #hero-canvas{display:none}
.hero-vignette{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(to bottom,rgba(10,12,14,.35),transparent 30%,transparent 60%,var(--bg) 98%)}
html[data-theme="light"] .hero-vignette{background:linear-gradient(to bottom,rgba(233,235,239,.2),transparent 30%,transparent 60%,var(--bg) 98%)}
.hero-content{position:relative;z-index:3;width:min(1200px,92vw);margin-inline:auto;padding:120px 0 90px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border-radius:var(--ctk-switch-radius);
  background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(10px);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--text-dim);margin-bottom:26px;text-transform:uppercase;
}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#2ECC71;box-shadow:0 0 0 0 rgba(46,204,113,.6);animation:pulseDot 2s infinite}
@keyframes pulseDot{70%{box-shadow:0 0 0 10px rgba(46,204,113,0)}100%{box-shadow:0 0 0 0 rgba(46,204,113,0)}}
.hero-title{font-family:var(--font-display);font-weight:800;line-height:1.02;letter-spacing:-.02em;
  font-size:clamp(2.6rem,6.6vw,5.6rem);max-width:15ch}
.hero-title .line{display:block;overflow:hidden;padding-bottom:.06em}
.hero-title .line-i{display:block;will-change:transform}
.hero-title .grad{color:transparent}
.hero-title .grad .line-i{
  background:linear-gradient(100deg,var(--ctk-blue-light) 10%,#8CC6F7 45%,var(--ctk-blue) 80%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% 100%;animation:gradShift 6s ease-in-out infinite;
}
@keyframes gradShift{0%,100%{background-position:0% 0}50%{background-position:100% 0}}
.hero-sub{margin-top:24px;max-width:56ch;color:var(--text-dim);font-size:clamp(15px,1.4vw,18px)}
.hero-ctas{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-stats{display:flex;gap:clamp(18px,4vw,52px);margin-top:56px;flex-wrap:wrap}
.hstat b{font-family:var(--font-display);font-size:clamp(1.4rem,2.6vw,2.1rem);font-weight:700;color:var(--text);display:block;line-height:1}
.hstat b span{font-size:.55em;color:var(--btn-light);margin-left:2px}
.hstat small{font-size:11.5px;color:var(--text-dim);letter-spacing:.05em;text-transform:uppercase}
.scroll-cue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-dim);font-size:10.5px;letter-spacing:.3em;text-transform:uppercase}
.mouse{width:24px;height:38px;border:2px solid var(--text-dim);border-radius:14px;position:relative}
.mouse i{position:absolute;top:6px;left:50%;width:3px;height:8px;margin-left:-1.5px;border-radius:3px;background:var(--btn-light);animation:mouseScroll 1.8s infinite}
@keyframes mouseScroll{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(14px)}100%{opacity:0}}

/* ── MARQUEE ──────────────────────────────────────────────────── */
.marquee{border-block:1px solid var(--glass-brd);background:var(--frame-2);overflow:hidden;padding:14px 0;position:relative;z-index:2}
.marquee-track{display:flex;gap:34px;width:max-content;animation:marquee 28s linear infinite;align-items:center}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-family:var(--font-display);font-size:13px;font-weight:700;letter-spacing:.22em;color:var(--text-dim);white-space:nowrap}
.marquee-track i{color:var(--btn-light);font-style:normal;font-size:10px}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ── section headers ──────────────────────────────────────────── */
.kicker{font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;color:var(--btn-light);margin-bottom:14px}
.kicker.center{text-align:center}
.sec-title{font-family:var(--font-display);font-weight:800;letter-spacing:-.015em;line-height:1.12;
  font-size:clamp(1.7rem,3.6vw,2.9rem);max-width:24ch}
.sec-title.center{margin-inline:auto;text-align:center;max-width:30ch}
.sec-sub{margin-top:14px;color:var(--text-dim);max-width:64ch;font-size:15.5px}
.sec-sub.center{margin-inline:auto}
.glass{background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:14px;box-shadow:var(--shadow)}

/* ── ABOUT ────────────────────────────────────────────────────── */
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(36px,5vw,80px);align-items:center}
.about-visual{position:relative}
.tilt-frame{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--glass-brd);box-shadow:var(--shadow);transform-style:preserve-3d;transition:transform .2s ease-out}
.tilt-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;transform:scale(1.04)}
.frame-glow{position:absolute;inset:0;background:linear-gradient(140deg,rgba(59,142,208,.14),transparent 45%);pointer-events:none}
.float-badge{position:absolute;padding:12px 16px;border-radius:12px;max-width:230px;z-index:2;animation:floaty 5s ease-in-out infinite}
.float-badge b{font-family:var(--font-mono);color:var(--btn-light);font-size:13px;display:block;letter-spacing:.12em}
.float-badge small{font-size:11px;color:var(--text-dim);line-height:1.45;display:block;margin-top:3px}
.fb1{top:-22px;right:-14px}
.fb2{bottom:-24px;left:-14px;animation-delay:-2.5s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.about-text blockquote{position:relative;margin-top:26px;padding:22px 26px 22px 56px;border-left:3px solid var(--btn-light)}
.quote-mark{position:absolute;left:16px;top:2px;font-family:var(--font-display);font-size:52px;color:var(--btn-light);opacity:.5;line-height:1}
.about-text blockquote p{font-size:15px;color:var(--text-dim);font-style:italic}
.tenet-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px}
.tenet{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:10px;transition:transform .25s,border-color .25s}
.tenet:hover{transform:translateY(-3px);border-color:var(--btn-light)}
.tenet-ic{font-size:20px}
.tenet b{font-size:13.5px;font-family:var(--font-display);font-weight:600}

/* ── TECHNOLOGY ───────────────────────────────────────────────── */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:56px}
.tech-card{position:relative;padding:30px 28px;border-radius:16px;overflow:hidden;transform-style:preserve-3d;transition:transform .18s ease-out,border-color .3s}
.tech-card:hover{border-color:rgba(59,142,208,.5)}
.tech-num{position:absolute;top:18px;right:22px;font-size:44px;font-weight:600;color:var(--text);opacity:.07}
.tech-anim{height:110px;margin:6px 0 20px;border-radius:10px;background:var(--frame-2);border:1px solid var(--border-soft);display:grid;place-items:center;overflow:hidden}
.tech-anim svg{width:88%;height:88%}
.grid-l{stroke:var(--border);stroke-width:1;opacity:.5}
.curve{stroke:var(--btn-light);stroke-width:2.5;stroke-linecap:round;stroke-dasharray:320;stroke-dashoffset:320}
.tech-card:hover .curve{animation:draw 1.4s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.dotc{fill:#2ECC71}
.svg-t{fill:var(--text-dim);font-size:11px;font-family:var(--font-mono)}
.pulse-ring{fill:none;stroke:#2ECC71;stroke-width:2;animation:ringPulse 1.6s infinite}
@keyframes ringPulse{0%{r:3;opacity:1}100%{r:12;opacity:0}}
.cube-scene{width:70px;height:70px;perspective:280px}
.cube{width:100%;height:100%;position:relative;transform-style:preserve-3d;animation:cubeSpin 9s linear infinite}
.cube i{position:absolute;inset:0;border:1.5px solid var(--btn-light);background:rgba(59,142,208,.12);border-radius:4px}
.cube i:nth-child(1){transform:translateZ(35px)} .cube i:nth-child(2){transform:rotateY(180deg) translateZ(35px)}
.cube i:nth-child(3){transform:rotateY(90deg) translateZ(35px)} .cube i:nth-child(4){transform:rotateY(-90deg) translateZ(35px)}
.cube i:nth-child(5){transform:rotateX(90deg) translateZ(35px)} .cube i:nth-child(6){transform:rotateX(-90deg) translateZ(35px)}
@keyframes cubeSpin{to{transform:rotateX(360deg) rotateY(360deg)}}
.tech-card h3{font-family:var(--font-display);font-size:17.5px;font-weight:700;margin-bottom:10px;line-height:1.3}
.tech-card p{font-size:13.5px;color:var(--text-dim)}

/* ── PRODUCTS / VIEWER ────────────────────────────────────────── */
.viewer-shell{margin-top:52px;border-radius:20px;overflow:hidden}
.viewer-tabs{display:flex;gap:8px;padding:14px;border-bottom:1px solid var(--glass-brd);overflow-x:auto;scrollbar-width:none;background:var(--frame-2)}
.viewer-tabs::-webkit-scrollbar{display:none}
.viewer-tabs button{
  font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.04em;white-space:nowrap;
  padding:9px 16px;border-radius:var(--ctk-radius);border:1px solid var(--border);background:transparent;
  color:var(--text-dim);cursor:pointer;transition:all .25s;
}
.viewer-tabs button:hover{color:var(--text);border-color:var(--btn-light)}
.viewer-tabs button.active{background:var(--btn);border-color:var(--btn);color:var(--ctk-text);box-shadow:0 4px 14px rgba(31,106,165,.4)}
.viewer-body{display:grid;grid-template-columns:1.35fr 1fr}
.viewer-stage{position:relative;height:clamp(480px,66vh,720px);background:
  radial-gradient(ellipse 80% 70% at 50% 40%,rgba(59,142,208,.07),transparent 70%);
  border-right:1px solid var(--glass-brd)}
#viewer-canvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:pan-y}
#viewer-canvas:active{cursor:grabbing}
.viewer-hud{position:absolute;top:14px;left:14px;display:flex;gap:8px;pointer-events:none}
.hud-chip{font-size:11px;padding:6px 12px;border-radius:var(--ctk-switch-radius);background:var(--glass);border:1px solid var(--glass-brd);color:var(--text-dim);backdrop-filter:blur(8px)}
#hud-model{color:var(--btn-light);font-weight:600}
.viewer-controls{position:absolute;bottom:14px;left:14px;display:flex;align-items:center;gap:16px;padding:10px 14px;border-radius:12px;background:var(--glass);border:1px solid var(--glass-brd);backdrop-filter:blur(8px)}
.viewer-loader{position:absolute;inset:0;display:grid;place-items:center;background:var(--bg);z-index:5;transition:opacity .5s,visibility .5s}
.viewer-loader.done{opacity:0;visibility:hidden}
.spinner{width:44px;height:44px;border:3px solid var(--border);border-top-color:var(--btn-light);border-radius:50%;animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.viewer-info{padding:30px 26px;display:flex;flex-direction:column;gap:14px;min-width:0;
  max-height:clamp(480px,66vh,720px);overflow-y:auto;scrollbar-width:thin}
.viewer-info::-webkit-scrollbar{width:6px}
.viewer-info::-webkit-scrollbar-thumb{background:var(--border);border:0}
.p-series{font-size:11px;letter-spacing:.26em;color:var(--btn-light);font-weight:600}
.viewer-info h3{font-family:var(--font-display);font-size:clamp(19px,2vw,24px);font-weight:700;line-height:1.25}
#p-desc{font-size:13.5px;color:var(--text-dim)}
.p-feats{display:flex;flex-wrap:wrap;gap:6px}
.p-feats span{font-size:11px;padding:4px 10px;border-radius:var(--ctk-switch-radius);background:rgba(59,142,208,.12);border:1px solid rgba(59,142,208,.3);color:var(--btn-light);font-weight:600}
.spec-table{width:100%;border-collapse:collapse;font-size:12.5px;margin-top:2px}
.spec-table th{text-align:left;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);padding:7px 10px;border-bottom:1px solid var(--border)}
.spec-table td{padding:7px 10px;border-bottom:1px solid var(--border-soft);vertical-align:top}
.spec-table td:first-child{color:var(--text-dim);white-space:nowrap;width:42%}
.spec-table td:last-child{font-family:var(--font-mono);font-size:11.5px;color:var(--text)}
.spec-table tr{transition:background .2s}
.spec-table tr:hover{background:var(--border-soft)}
.p-actions{margin-top:auto;padding-top:16px}
.wa-quote-product{width:100%}

/* spec grid (fallback/SEO) */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.spec-card{padding:22px;border-radius:14px;background:var(--frame-2);border:1px solid var(--border-soft);transition:transform .3s,border-color .3s,box-shadow .3s}
.spec-card:hover{transform:translateY(-6px);border-color:rgba(59,142,208,.45);box-shadow:0 18px 40px rgba(0,0,0,.25)}
.spec-card b{font-family:var(--font-mono);font-size:12px;color:var(--btn-light);letter-spacing:.1em;display:block;margin-bottom:8px}
.spec-card h4{font-family:var(--font-display);font-size:15px;margin-bottom:8px;line-height:1.3}
.spec-card p{font-size:12.5px;color:var(--text-dim);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ── NUMBERS ──────────────────────────────────────────────────── */
.numbers{padding:64px 0;background:var(--frame-2);border-block:1px solid var(--glass-brd);position:relative;z-index:2}
.numbers-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:26px}
.num b{font-family:var(--font-display);font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:800;color:var(--text);line-height:1;display:block}
.num b i{font-style:normal;font-size:.5em;color:var(--btn-light)}
.num small{display:block;margin-top:8px;font-size:11px;color:var(--text-dim);letter-spacing:.05em;text-transform:uppercase;line-height:1.5}

/* ── WHY ──────────────────────────────────────────────────────── */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:52px}
.why-card{padding:30px;border-radius:16px;position:relative;overflow:hidden;transition:transform .3s,border-color .3s}
.why-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--ctk-blue-light),transparent);opacity:0;transition:opacity .3s}
.why-card:hover{transform:translateY(-5px);border-color:rgba(59,142,208,.45)}
.why-card:hover::before{opacity:1}
.why-ic{width:52px;height:52px;display:grid;place-items:center;font-size:24px;border-radius:12px;background:rgba(59,142,208,.12);border:1px solid rgba(59,142,208,.3);margin-bottom:16px}
.why-card h3{font-family:var(--font-display);font-size:16.5px;font-weight:700;margin-bottom:8px}
.why-card p{font-size:13.5px;color:var(--text-dim)}

/* ── SERVICE ──────────────────────────────────────────────────── */
.svc-line{width:min(720px,80%);height:2px;margin:44px auto 0;background:var(--border);position:relative;border-radius:2px}
.svc-line i{position:absolute;inset:0;width:0;background:linear-gradient(90deg,var(--ctk-blue),var(--ctk-blue-light));border-radius:2px}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:-1px;padding-top:34px}
.svc-card{position:relative;padding:28px;border-radius:16px;background:var(--frame-2);border:1px solid var(--border-soft);transition:transform .3s,border-color .3s}
.svc-card::before{content:"";position:absolute;top:-41px;left:36px;width:14px;height:14px;border-radius:50%;background:var(--btn);border:3px solid var(--bg);box-shadow:0 0 0 3px var(--btn),0 0 18px var(--glow-1)}
.svc-card:hover{transform:translateY(-5px);border-color:rgba(59,142,208,.4)}
.svc-step{font-size:10.5px;letter-spacing:.24em;color:var(--btn-light);margin-bottom:12px}
.svc-ic{width:48px;height:48px;display:grid;place-items:center;font-size:22px;border-radius:12px;margin-bottom:14px}
.svc-card h3{font-family:var(--font-display);font-size:16px;font-weight:700;margin-bottom:8px}
.svc-card p{font-size:13px;color:var(--text-dim)}

/* ── QUOTE ────────────────────────────────────────────────────── */
.quote-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,4vw,64px);align-items:start}
.q-contact{margin-top:30px;padding:26px;border-radius:16px}
.q-wa{display:flex;align-items:center;gap:16px;padding:16px;border-radius:12px;background:rgba(31,168,85,.1);border:1px solid rgba(31,168,85,.35);transition:transform .25s,box-shadow .25s;margin-bottom:20px}
.q-wa:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(31,168,85,.25)}
.q-wa-ic{width:50px;height:50px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;background:#1FA855;color:#fff;box-shadow:0 6px 16px rgba(31,168,85,.4)}
.q-wa b{display:block;font-size:17px;color:var(--text);letter-spacing:.02em}
.q-wa small{font-size:11.5px;color:var(--text-dim)}
.q-rows{display:flex;flex-direction:column;gap:14px}
.q-row{display:flex;gap:12px;align-items:flex-start}
.q-row span{font-size:18px;line-height:1.4}
.q-row b{display:block;font-size:13px;font-family:var(--font-display)}
.q-row small{font-size:12px;color:var(--text-dim)}

.quote-form{padding:0 0 26px;border-radius:18px;overflow:hidden}
.qf-head{display:flex;align-items:center;gap:8px;padding:13px 20px;background:var(--top-frame);border-bottom:1px solid var(--glass-brd)}
.qf-dot{width:11px;height:11px;border-radius:50%}
.qf-dot.r{background:#FF5F57}.qf-dot.y{background:#FEBC2E}.qf-dot.g{background:#28C840}
.qf-head b{margin-left:10px;font-size:11px;letter-spacing:.18em;color:var(--text-dim)}
.quote-form .qf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:22px 24px 0}
.quote-form .qf-grid.two{padding:14px 24px 0}
.ctk-field{display:flex;flex-direction:column;gap:7px;min-width:0}
.ctk-field > span,.ctk-field legend{font-size:11.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim)}
.ctk-field{padding:0}
.ctk-entry{
  font-family:var(--font-body);font-size:14px;color:var(--text);
  background:var(--entry-bg);border:2px solid var(--border);border-radius:var(--ctk-radius);
  padding:11px 14px;outline:none;transition:border-color .25s,box-shadow .25s;width:100%;
}
.ctk-entry::placeholder{color:var(--text-dim);opacity:.65}
.ctk-entry:focus{border-color:var(--btn-light);box-shadow:0 0 0 4px rgba(59,142,208,.18)}
.ctk-entry.invalid{border-color:#E74C3C;box-shadow:0 0 0 4px rgba(231,76,60,.15)}
textarea.ctk-entry{resize:vertical;min-height:80px}
select.ctk-entry{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239DA3A9' stroke-width='2' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;cursor:pointer}
.qf-products{padding:16px 24px 0;border:0}
.qf-products legend{margin-bottom:10px}
.chip-wrap{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative;cursor:pointer}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;
  padding:8px 14px;border-radius:var(--ctk-switch-radius);border:2px solid var(--border);
  color:var(--text-dim);background:var(--entry-bg);transition:all .25s;
}
.chip span::before{content:"";width:14px;height:14px;border-radius:4px;border:2px solid var(--border);transition:all .25s;flex-shrink:0}
.chip:hover span{border-color:var(--btn-light);color:var(--text)}
.chip input:checked + span{border-color:var(--btn);background:rgba(31,106,165,.16);color:var(--btn-light)}
.chip input:checked + span::before{background:var(--btn);border-color:var(--btn);box-shadow:inset 0 0 0 2px var(--entry-bg),0 0 8px rgba(59,142,208,.6)}
.chip-wrap.invalid span{border-color:#E74C3C}
.switch-field{flex-direction:row !important;align-items:center;justify-content:space-between;gap:14px !important;padding:10px 14px;background:var(--entry-bg);border:2px solid var(--border);border-radius:var(--ctk-radius)}
.switch-field > span{text-transform:none !important;font-size:13px !important;color:var(--text) !important}
.qf-preview{margin:18px 24px 0;border-radius:10px;background:var(--bg-2);border:1px solid var(--border-soft);padding:14px 16px}
.qf-preview small{font-size:9.5px;letter-spacing:.2em;color:var(--text-dim);display:block;margin-bottom:8px}
#wa-preview{font-size:11.5px;line-height:1.65;color:var(--text-dim);white-space:pre-wrap;word-break:break-word;max-height:150px;overflow-y:auto}
.qf-actions{display:flex;gap:12px;padding:18px 24px 0;flex-wrap:wrap}
.wa-send{background:#1FA855 !important;flex:1;min-width:220px}
.wa-send:hover{background:#17863f !important;box-shadow:0 12px 28px rgba(31,168,85,.4) !important}
.qf-note{margin:14px 24px 0;font-size:12.5px;color:#2ECC71;background:rgba(46,204,113,.08);border:1px solid rgba(46,204,113,.3);padding:12px 14px;border-radius:8px}

/* ── FOOTER ───────────────────────────────────────────────────── */
.footer{background:var(--bg-2);border-top:1px solid var(--glass-brd);padding:56px 0 0;position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr auto;gap:36px;align-items:start;padding-bottom:40px}
.f-brand{display:flex;gap:14px;align-items:center}
.f-brand .brand-hex{width:44px;height:44px}
.f-brand b{font-family:var(--font-display);font-size:14.5px;display:block;line-height:1.35}
.f-brand small{font-size:11.5px;color:var(--text-dim)}
.f-links{display:flex;flex-direction:column;gap:9px}
.f-links a{font-size:13px;color:var(--text-dim);transition:color .2s,padding-left .2s;width:fit-content}
.f-links a:hover{color:var(--btn-light);padding-left:6px}
.f-wa{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.f-wa small{font-size:11px;color:var(--text-dim)}
.f-bottom{border-top:1px solid var(--glass-brd);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;width:min(1200px,92vw);margin-inline:auto;font-size:11.5px;color:var(--text-dim)}
.f-credit{opacity:.7}

/* ── floating actions ─────────────────────────────────────────── */
.wa-fab{
  position:fixed;right:22px;bottom:22px;z-index:900;width:58px;height:58px;border-radius:50%;
  background:#1FA855;color:#fff;display:grid;place-items:center;
  box-shadow:0 12px 30px rgba(31,168,85,.5);transition:transform .3s;
}
.wa-fab:hover{transform:scale(1.1) rotate(6deg)}
.wa-fab-pulse{position:absolute;inset:0;border-radius:50%;border:2px solid #1FA855;animation:fabPulse 2.2s infinite}
@keyframes fabPulse{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.7);opacity:0}}
#back-top{
  position:fixed;right:26px;bottom:92px;z-index:900;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-brd);color:var(--text);cursor:pointer;
  display:grid;place-items:center;backdrop-filter:blur(10px);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .3s;
}
#back-top.show{opacity:1;visibility:visible;transform:none}
#back-top:hover{border-color:var(--btn-light);color:var(--btn-light)}

/* toast */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);z-index:2000;
  background:var(--top-frame);border:1px solid var(--btn-light);color:var(--text);
  padding:13px 22px;border-radius:10px;font-size:13.5px;font-weight:500;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transition:all .35s;max-width:90vw;text-align:center;
}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* ── reveal states (pre-GSAP fallback = visible) ──────────────── */
.js-anim .reveal{opacity:0}
.js-anim .hero-content .reveal-hero{opacity:0}

/* ── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width:1080px){
  .viewer-body{grid-template-columns:1fr}
  .viewer-stage{border-right:0;border-bottom:1px solid var(--glass-brd);height:clamp(400px,55vh,560px)}
  .viewer-info{max-height:none;overflow:visible;padding:28px 24px}
  .numbers-grid{grid-template-columns:repeat(3,1fr);gap:30px 18px}
  .tech-grid{grid-template-columns:1fr;max-width:560px;margin-inline:auto}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;inset:0;top:0;background:var(--nav-bg);backdrop-filter:blur(22px);
    flex-direction:column;align-items:center;justify-content:center;gap:10px;z-index:999;
    opacity:0;visibility:hidden;transition:all .35s;
  }
  .nav-links.open{opacity:1;visibility:visible}
  .nav-links a{font-size:20px;padding:12px 22px}
  .nav-burger{display:flex;z-index:1000}
  .nav-cta{display:none}
  .lang-switch button{padding:5px 7px;font-size:10.5px}
  .about-grid{grid-template-columns:1fr}
  .about-visual{max-width:560px;margin-inline:auto}
  .quote-grid{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:1fr;max-width:480px;margin-inline:auto;gap:44px}
  .svc-line{display:none}
  .svc-card::before{display:none}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .hero-stats{gap:20px}
  .hstat b{font-size:1.3rem}
  .spec-grid{grid-template-columns:1fr}
  .numbers-grid{grid-template-columns:repeat(2,1fr)}
  .quote-form .qf-grid{grid-template-columns:1fr}
  .fb1{right:6px;top:-16px}.fb2{left:6px;bottom:-18px}
  .viewer-controls{gap:10px;padding:8px 10px}
  .wa-fab{width:52px;height:52px;right:16px;bottom:16px}
  #back-top{bottom:80px;right:20px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .marquee-track{animation:none}
}