:root{
    --bg:#07080a;
    --bg2:#0b0c0f;
    --surface:#101216;
    --surface2:#15171c;
    --surface3:#1b1e24;
    --text:#ffffff;
    --muted:#8d929d;
    --soft:#c9ccd2;
    --line:rgba(255,255,255,.09);
    --line2:rgba(255,255,255,.16);
    --accent:#ffffff;
    --accent2:#b8bdc7;
    --danger:#ff4d67;
    --shadow:0 30px 90px rgba(0,0,0,.45);
    --radius:24px;
    --ease:cubic-bezier(.2,.8,.2,1);
}

body.light{
    --bg:#f4f5f7;
    --bg2:#ffffff;
    --surface:#ffffff;
    --surface2:#f0f1f4;
    --surface3:#e8e9ed;
    --text:#0b0c0f;
    --muted:#666b75;
    --soft:#292c33;
    --line:rgba(0,0,0,.09);
    --line2:rgba(0,0,0,.15);
    --accent:#090a0c;
    --accent2:#3c4048;
    --shadow:0 30px 90px rgba(0,0,0,.12);
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;}
body{font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;transition:background .35s,color .35s;}
button,input{font:inherit;}
button{cursor:pointer;}
a{color:inherit;text-decoration:none;}

/* 3D BACKGROUND */
#threeCanvas{position:fixed;inset:0;width:100%;height:100%;z-index:-5;pointer-events:none;}
.scene-overlay{position:fixed;inset:0;z-index:-4;pointer-events:none;background:radial-gradient(circle at 50% 10%,rgba(255,255,255,.07),transparent 35%),linear-gradient(to bottom,transparent 0%,var(--bg) 90%);}

/* LOADER */
.page-loader{position:fixed;inset:0;z-index:99999;background:#07080a;display:flex;align-items:center;justify-content:center;transition:.6s var(--ease);}
.page-loader.hide{opacity:0;visibility:hidden;}
.loader-inner{text-align:center;}
.loader-logo{font-size:clamp(42px,12vw,110px);font-weight:900;letter-spacing:-.08em;}
.loader-line{width:150px;height:2px;background:rgba(255,255,255,.12);margin:20px auto;overflow:hidden;}
.loader-line span{display:block;height:100%;width:35%;background:#fff;animation:loaderMove 1.2s infinite ease-in-out;}
.loader-text{font-size:10px;text-transform:uppercase;letter-spacing:.35em;color:#777;}
@keyframes loaderMove{0%{transform:translateX(-150%)}100%{transform:translateX(450%)}}

/* NAVBAR */
.navbar{position:fixed;top:0;left:0;right:0;height:76px;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(18px,5vw,70px);background:rgba(7,8,10,.72);border-bottom:1px solid var(--line);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);}
.light .navbar{background:rgba(255,255,255,.76);}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{width:38px;height:38px;border:1px solid var(--line2);border-radius:11px;display:grid;place-items:center;font-size:13px;font-weight:900;background:var(--surface2);box-shadow:inset 0 1px rgba(255,255,255,.08);}
.logo-text{font-size:14px;font-weight:800;letter-spacing:.12em;}
.logo-text span{display:block;font-size:8px;color:var(--muted);letter-spacing:.25em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-links a{font-size:12px;color:var(--muted);transition:.25s;}
.nav-links a:hover{color:var(--text);}
.nav-actions{display:flex;gap:8px;}
.nav-btn{width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);display:grid;place-items:center;}

/* HERO */
.hero{min-height:100vh;padding:150px clamp(20px,7vw,100px) 100px;display:flex;align-items:center;position:relative;}
.hero-inner{width:min(1300px,100%);margin:auto;}
.eyebrow{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);background:rgba(255,255,255,.025);padding:8px 13px;border-radius:100px;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.2em;margin-bottom:25px;}
.eyebrow i{width:6px;height:6px;background:#fff;border-radius:50%;display:block;}
.hero-title{max-width:1050px;font-size:clamp(58px,10vw,155px);line-height:.86;letter-spacing:-.075em;font-weight:900;}
.hero-title .outline{color:transparent;-webkit-text-stroke:1px var(--text);}
.hero-description{max-width:620px;margin-top:34px;color:var(--muted);font-size:clamp(15px,1.5vw,19px);line-height:1.75;}
.hero-actions{margin-top:38px;display:flex;gap:12px;flex-wrap:wrap;}
.primary-btn,.secondary-btn{min-height:52px;padding:0 23px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;font-size:13px;transition:.3s var(--ease);}
.primary-btn{background:var(--text);color:var(--bg);border:1px solid var(--text);}
.primary-btn:hover{transform:translateY(-3px);box-shadow:0 15px 40px rgba(255,255,255,.12);}
.secondary-btn{background:rgba(255,255,255,.04);color:var(--text);border:1px solid var(--line2);}
.secondary-btn:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);}

/* HERO STATS */
.hero-stats{margin-top:75px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.hero-stat{padding:25px 20px;border-right:1px solid var(--line);}
.hero-stat:last-child{border-right:0;}
.hero-stat strong{display:block;font-size:27px;font-weight:800;}
.hero-stat span{display:block;margin-top:6px;font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.16em;}

/* SECTION */
.section{padding:120px clamp(20px,7vw,100px);}
.section-inner{width:min(1300px,100%);margin:auto;}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:45px;}
.section-number{font-size:10px;color:var(--muted);letter-spacing:.25em;text-transform:uppercase;}
.section-title{margin-top:12px;font-size:clamp(40px,6vw,90px);line-height:.95;letter-spacing:-.06em;font-weight:900;}
.section-copy{max-width:420px;color:var(--muted);line-height:1.7;font-size:14px;}

/* SEARCH */
.search-panel{position:relative;background:rgba(16,18,22,.78);border:1px solid var(--line2);border-radius:32px;padding:12px;box-shadow:var(--shadow);backdrop-filter:blur(25px);}
.light .search-panel{background:rgba(255,255,255,.78);}
.search-panel-inner{padding:45px;border:1px solid var(--line);border-radius:23px;}
.search-label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.25em;margin-bottom:18px;}
.search-box{display:flex;gap:10px;padding:7px;border:1px solid var(--line2);border-radius:18px;background:var(--surface2);}
#searchInput{flex:1;min-width:0;height:56px;border:0;outline:0;padding:0 18px;background:transparent;color:var(--text);font-size:16px;}
#searchInput::placeholder{color:var(--muted);}
.search-submit{width:56px;border:0;border-radius:13px;background:var(--text);color:var(--bg);display:grid;place-items:center;}
.search-suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.suggestion{border:1px solid var(--line);background:transparent;color:var(--muted);padding:8px 12px;border-radius:100px;font-size:11px;transition:.25s;}
.suggestion:hover{color:var(--text);border-color:var(--line2);}

/* RESULTS */
.results-toolbar{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:22px;}
.result-status{color:var(--muted);font-size:12px;}
.history-button{border:1px solid var(--line);background:var(--surface);color:var(--text);padding:10px 15px;border-radius:12px;font-size:11px;}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.video-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.4s var(--ease);}
.video-card:hover{transform:translateY(-7px);border-color:var(--line2);box-shadow:var(--shadow);}
.thumbnail-wrapper{position:relative;aspect-ratio:16/9;background:#050505;overflow:hidden;cursor:pointer;}
.thumbnail{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.6s var(--ease);}
.video-card:hover .thumbnail{transform:scale(1.045);}
.play-icon{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:54px;height:54px;border:1px solid rgba(255,255,255,.65);background:rgba(0,0,0,.5);backdrop-filter:blur(10px);border-radius:50%;display:grid;place-items:center;transition:.3s;}
.video-card:hover .play-icon{transform:translate(-50%,-50%) scale(1.08);}
.play-icon svg{width:20px;fill:#fff;margin-left:3px;}
.card-details{padding:16px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.uploader-name{font-size:12px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.action-btns{display:flex;gap:7px;}
.icon-btn{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:var(--surface2);color:var(--text);display:grid;place-items:center;transition:.25s;}
.icon-btn:hover{border-color:var(--line2);transform:translateY(-2px);}

/* LOADER */
.loader-wrap{display:none;padding:70px 0;text-align:center;}
.loader-wrap.active{display:block;}
.loader{width:40px;height:40px;margin:auto;border:2px solid var(--line2);border-top-color:var(--text);border-radius:50%;animation:spin .8s linear infinite;}
.loader-text{color:var(--muted);margin-top:15px;font-size:11px;letter-spacing:.15em;text-transform:uppercase;}
@keyframes spin{to{transform:rotate(360deg)}}

/* FEATURES */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;}
.feature-card{min-height:260px;padding:30px;background:var(--surface);border:1px solid var(--line);border-radius:24px;position:relative;overflow:hidden;transition:.35s var(--ease);}
.feature-card:hover{transform:translateY(-5px);border-color:var(--line2);}
.feature-index{color:var(--muted);font-size:10px;letter-spacing:.2em;}
.feature-icon{width:48px;height:48px;margin:60px 0 22px;border:1px solid var(--line2);border-radius:14px;display:grid;place-items:center;}
.feature-card h3{font-size:20px;letter-spacing:-.03em;}
.feature-card p{color:var(--muted);line-height:1.6;font-size:12px;margin-top:10px;}

/* STATEMENT */
.statement{min-height:70vh;display:flex;align-items:center;}
.statement-text{font-size:clamp(45px,8vw,120px);line-height:.92;letter-spacing:-.07em;font-weight:900;max-width:1200px;}
.statement-text span{color:var(--muted);}

/* PROCESS */
.process{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.process-item{padding:35px;border-right:1px solid var(--line);}
.process-item:last-child{border-right:0;}
.process-num{color:var(--muted);font-size:11px;}
.process-item h3{margin-top:60px;font-size:24px;}
.process-item p{color:var(--muted);font-size:13px;line-height:1.7;margin-top:12px;}

/* CTA */
.cta{padding:100px 20px 130px;}
.cta-box{width:min(1300px,100%);margin:auto;padding:clamp(45px,7vw,100px);border:1px solid var(--line2);border-radius:34px;background:linear-gradient(135deg,rgba(255,255,255,.07),transparent 55%),var(--surface);position:relative;overflow:hidden;}
.cta-box h2{font-size:clamp(48px,8vw,110px);letter-spacing:-.07em;line-height:.88;max-width:850px;}
.cta-box p{max-width:500px;color:var(--muted);line-height:1.7;margin-top:25px;}
.cta-box .primary-btn{margin-top:30px;}

/* FOOTER */
footer{border-top:1px solid var(--line);padding:55px clamp(20px,7vw,100px);}
.footer-inner{width:min(1300px,100%);margin:auto;display:flex;justify-content:space-between;gap:30px;}
.footer-brand{font-size:30px;font-weight:900;letter-spacing:-.05em;}
.footer-copy{color:var(--muted);font-size:11px;line-height:1.7;margin-top:8px;}
.footer-links{display:flex;gap:20px;align-items:flex-start;}
.footer-links a{color:var(--muted);font-size:11px;}

/* HISTORY DRAWER */
.overlay{position:fixed;inset:0;z-index:1900;background:rgba(0,0,0,.65);backdrop-filter:blur(8px);display:none;}
.overlay.active{display:block;}
.history-sidebar{position:fixed;z-index:2000;top:0;left:0;bottom:0;width:min(380px,90vw);background:var(--surface);border-right:1px solid var(--line2);transform:translateX(-100%);transition:.45s var(--ease);padding:25px;overflow-y:auto;}
.history-sidebar.active{transform:translateX(0);}
.history-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:20px;border-bottom:1px solid var(--line);}
.history-header h3{font-size:18px;}
.close-history{width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:var(--surface2);color:var(--text);}
.clear-history{margin-top:15px;color:#ff657a;font-size:10px;cursor:pointer;}
.history-item{display:flex;justify-content:space-between;align-items:center;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--soft);font-size:13px;cursor:pointer;}
.history-item:hover{color:var(--text);}

/* VIDEO MODAL */
.modal{position:fixed;inset:0;z-index:5000;background:rgba(0,0,0,.9);backdrop-filter:blur(12px);display:none;align-items:center;justify-content:center;padding:20px;}
.modal.show{display:flex;}
.modal-content{position:relative;width:min(1000px,100%);border:1px solid rgba(255,255,255,.25);background:#000;border-radius:22px;overflow:hidden;box-shadow:0 40px 100px rgba(0,0,0,.7);}
.modal-close{position:absolute;right:12px;top:12px;z-index:10;width:40px;height:40px;border-radius:50%;background:rgba(0,0,0,.65);border:1px solid rgba(255,255,255,.25);color:#fff;font-size:23px;}
#player{width:100%;}

/* REVEAL */
.reveal{opacity:0;transform:translateY(35px);transition:1s var(--ease);}
.reveal.visible{opacity:1;transform:none;}

/* MOBILE */
@media(max-width:900px){
    .nav-links{display:none;}
    .hero{padding-top:125px;}
    .hero-title{font-size:clamp(56px,16vw,100px);}
    .hero-stats{grid-template-columns:repeat(2,1fr);}
    .hero-stat:nth-child(2){border-right:0;}
    .hero-stat:nth-child(-n+2){border-bottom:1px solid var(--line);}
    .video-grid,.feature-grid,.process{grid-template-columns:1fr;}
    .process-item{border-right:0;border-bottom:1px solid var(--line);}
    .process-item:last-child{border-bottom:0;}
    .section-heading{display:block;}
    .section-copy{margin-top:20px;}
    .search-panel-inner{padding:25px;}
    .footer-inner{flex-direction:column;}
}

@media(max-width:560px){
    .navbar{height:68px;}
    .logo-text{font-size:12px;}
    .hero{min-height:auto;padding-top:115px;padding-bottom:75px;}
    .hero-title{font-size:20vw;}
    .hero-description{font-size:14px;}
    .hero-actions{display:grid;grid-template-columns:1fr;}
    .primary-btn,.secondary-btn{width:100%;}
    .hero-stat{padding:20px 12px;}
    .hero-stat strong{font-size:21px;}
    .search-box{border-radius:15px;}
    #searchInput{font-size:14px;height:50px;}
    .search-submit{width:50px;}
    .section{padding:80px 18px;}
    .section-title{font-size:46px;}
    .statement-text{font-size:14vw;}
    .cta{padding:60px 18px 90px;}
    .cta-box{border-radius:24px;padding:40px 25px;}
}

/* =========================================
   ZXH OFFICIAL — PWA INSTALL POPUP
========================================= */

.install-prompt-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 20px;

  background: rgba(0, 0, 0, .62);

  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition:
    opacity .4s ease,
    visibility .4s ease;
}

.install-prompt-overlay.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.install-prompt {
  position: relative;

  width: min(520px, 100%);

  display: flex;
  align-items: center;
  gap: 20px;

  padding: 24px;

  border: 1px solid var(--line2);
  border-radius: 24px;

  background: var(--surface);

  box-shadow: var(--shadow);

  transform: translateY(20px) scale(.97);

  transition:
    transform .45s cubic-bezier(.2,.8,.2,1);
}

.install-prompt-overlay.show .install-prompt {
  transform: translateY(0) scale(1);
}

.install-close {
  position: absolute;
  top: 9px;
  right: 11px;

  border: 0;
  background: transparent;

  color: var(--muted);

  font-size: 27px;
  line-height: 1;

  cursor: pointer;
}

.install-close:hover {
  color: var(--text);
}

.install-icon {
  width: 72px;
  height: 72px;

  flex: 0 0 72px;

  border-radius: 19px;

  overflow: hidden;

  background: #fff;
}

.install-icon img {
  width: 100%;
  height: 100%;

  display: block;

  object-fit: cover;
}

.install-copy {
  min-width: 0;
}

.install-eyebrow {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .2em;

  color: var(--muted);
}

.install-copy h3 {
  margin: 7px 0;

  font-family: Outfit, Inter, sans-serif;
  font-size: 25px;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.04em;

  color: var(--text);
}

.install-copy p {
  margin: 0 0 15px;

  font-size: 11px;
  line-height: 1.55;

  color: var(--muted);
}

.install-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.install-actions .primary-btn,
.install-actions .secondary-btn {
  padding: 10px 13px;
}

@media (max-width: 560px) {

  .install-prompt {
    align-items: flex-start;
    padding: 20px;
    gap: 14px;
  }

  .install-icon {
    width: 60px;
    height: 60px;
    flex-basis: 60px;
    border-radius: 16px;
  }

  .install-copy h3 {
    font-size: 21px;
  }

}