/* ===== Keyhan Lift Yazd — Ultra-modern dark corporate UI ===== */
:root{
  --bg:#090e1a;
  --bg-2:#0d1526;
  --card:#101a2e;
  --glass:rgba(255,255,255,.04);
  --border:rgba(255,255,255,.09);
  --gold:#d4af37;
  --cyan:#00d2ff;
  --text:#eef3fb;
  --muted:#9aa8c2;
  --radius:18px;
  --shadow:0 18px 45px rgba(0,0,0,.45);
  --glow-c:0 0 22px rgba(0,210,255,.35);
  --glow-g:0 0 22px rgba(212,175,55,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Vazirmatn',Tahoma,sans-serif;background:var(--bg);color:var(--text);line-height:1.9;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,92%);margin-inline:auto}
.section{padding:80px 0}
.section-alt{background:var(--bg-2);border-block:1px solid var(--border)}
.center{text-align:center;margin-top:34px}
.muted{color:var(--muted)}
.grad-text{background:linear-gradient(90deg,var(--cyan),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(9,14,26,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:46px;height:46px;display:grid;place-items:center;font-size:22px;font-weight:800;color:var(--cyan);border:2px solid var(--cyan);border-radius:12px;box-shadow:var(--glow-c)}
.brand-text strong{font-size:19px;display:block}
.brand-text small{color:var(--muted);font-size:12px}
.main-nav{display:flex;align-items:center;gap:26px}
.main-nav a{color:var(--muted);font-weight:600;font-size:15px;transition:.25s;position:relative}
.main-nav a:hover,.main-nav a.active{color:var(--cyan)}
.main-nav a.active::after{content:"";position:absolute;bottom:-8px;right:0;width:100%;height:2px;background:linear-gradient(90deg,var(--cyan),var(--gold));border-radius:2px}
.nav-phone{color:var(--gold)!important;border:1px solid var(--gold);padding:8px 16px;border-radius:30px;box-shadow:var(--glow-g)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.hamburger span{width:26px;height:3px;background:var(--cyan);border-radius:3px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;transition:.3s;z-index:90}
.drawer-overlay.show{opacity:1;pointer-events:auto}

/* Hero */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden}
.hero-slides,.hero-slide{position:absolute;inset:0}
.hero-slide{background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s ease;transform:scale(1.05)}
.hero-slide.active{opacity:1;animation:zoom 8s ease forwards}
@keyframes zoom{from{transform:scale(1.12)}to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,14,26,.75),rgba(9,14,26,.92))}
.hero-content{position:relative;z-index:2;text-align:center;padding:100px 0}
.hero h1{font-size:clamp(30px,5.5vw,58px);font-weight:900;margin:18px 0}
.hero p{color:#cdd8ec;max-width:640px;margin:0 auto 30px;font-size:17px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:56px;flex-wrap:wrap}
.hero-stats strong{font-size:30px;color:var(--cyan);display:block}
.hero-stats span{color:var(--muted);font-size:14px}

/* Glow badge */
.glow-badge{display:inline-block;padding:8px 20px;border-radius:30px;border:1px solid var(--gold);color:var(--gold);font-size:14px;font-weight:700;box-shadow:var(--glow-g);background:rgba(212,175,55,.08)}
.tag{display:inline-block;padding:3px 14px;border-radius:20px;font-size:12px;font-weight:700;color:var(--cyan);border:1px solid var(--cyan);box-shadow:var(--glow-c);margin-bottom:10px}

/* Buttons */
.btn{display:inline-block;padding:13px 34px;border-radius:40px;font-weight:800;font-size:15px;cursor:pointer;border:none;transition:.3s;font-family:inherit}
.btn-primary{background:linear-gradient(90deg,#00b3dd,var(--cyan));color:#04121c;box-shadow:var(--glow-c)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 34px rgba(0,210,255,.5)}
.btn-ghost{border:1px solid var(--border);color:var(--text);background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-sm{padding:7px 20px;font-size:13px}

/* Fast bar */
.fast-bar{background:linear-gradient(90deg,rgba(0,210,255,.1),rgba(212,175,55,.1));border-block:1px solid var(--border)}
.fast-bar-inner{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:14px 0;flex-wrap:wrap}
.fast-bar span{font-weight:700;font-size:15px}
.fast-links{display:flex;gap:10px}
.chip{padding:7px 18px;border-radius:30px;border:1px solid var(--border);font-size:14px;font-weight:700;transition:.25s;background:var(--glass)}
.chip:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.chip-wa{border-color:#25d366;color:#25d366}
.chip-et{border-color:#37b5d6;color:#37b5d6}

/* Trust */
.trust{padding:34px 0}
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin-top:-46px;position:relative;z-index:5}
.trust-item{display:flex;gap:12px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.trust-item span{font-size:28px}
.trust-item strong{display:block;font-size:15px}
.trust-item small{color:var(--muted)}

/* Section head */
.section-head{text-align:center;max-width:640px;margin:0 auto 46px}
.kicker{color:var(--cyan);font-weight:800;font-size:14px;letter-spacing:1px}
.section-head h2{font-size:clamp(24px,3.4vw,36px);font-weight:900;margin:8px 0}
.section-head p{color:var(--muted)}

/* Cards */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:.35s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-6px);border-color:rgba(0,210,255,.4);box-shadow:0 20px 50px rgba(0,210,255,.12)}
.card h3{margin:10px 0 8px;font-size:18px}
.card p{color:var(--muted);font-size:14.5px}
.card-icon{width:58px;height:58px;display:grid;place-items:center;font-size:26px;border-radius:16px;background:rgba(0,210,255,.1);border:1px solid rgba(0,210,255,.3);box-shadow:var(--glow-c)}
.center-card{text-align:center}
.center-card .card-icon{margin-inline:auto}

/* Project cards */
.project-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s;box-shadow:var(--shadow);display:flex;flex-direction:column}
.project-card:hover{transform:translateY(-6px);border-color:rgba(212,175,55,.45);box-shadow:0 22px 55px rgba(212,175,55,.12)}
.project-card img{height:200px;width:100%;object-fit:cover}
.project-body{padding:22px;flex:1;display:flex;flex-direction:column;align-items:flex-start}
.project-body h3{font-size:17px;margin-bottom:6px}
.project-body p{color:var(--muted);font-size:14px;flex:1}
.project-body .btn{margin-top:14px}
.project-card.hide{display:none}
.projects-grid{margin-top:26px}

/* Filter */
.filter-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.filter-btn{padding:9px 26px;border-radius:30px;background:var(--glass);border:1px solid var(--border);color:var(--muted);font-weight:700;cursor:pointer;transition:.3s;font-family:inherit;font-size:14px}
.filter-btn:hover{color:var(--cyan);border-color:var(--cyan)}
.filter-btn.active{background:linear-gradient(90deg,#00b3dd,var(--cyan));color:#04121c;border-color:transparent;box-shadow:var(--glow-c)}

/* Estimator */
.estimator{max-width:680px;margin:0 auto;padding:36px;border-radius:var(--radius);display:grid;gap:18px;grid-template-columns:1fr 1fr}
.est-field{display:flex;flex-direction:column;gap:8px}
.est-field label{font-weight:700;font-size:14px;color:var(--muted)}
.estimator select,.estimator input{background:var(--bg-2);border:1px solid var(--border);border-radius:12px;padding:12px;color:var(--text);font-family:inherit;font-size:15px}
.estimator button{grid-column:1/-1}
.est-result{grid-column:1/-1;text-align:center;font-size:20px;font-weight:900;color:var(--gold);padding:16px;border-radius:14px;background:rgba(212,175,55,.08);border:1px dashed var(--gold);box-shadow:var(--glow-g)}
.est-note{grid-column:1/-1;color:var(--muted);text-align:center}
.glass{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border)}

/* Two col / services */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.service-detail{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:30px;box-shadow:var(--shadow)}
.service-detail img{border-radius:14px;height:260px;width:100%;object-fit:cover}
.service-detail h2{font-size:22px;margin-bottom:12px}
.service-detail p{color:var(--muted);margin-bottom:12px}
.service-detail ul{padding-right:20px;color:var(--cyan);font-size:14.5px}
.service-detail.reverse img{order:2}
.rounded-img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;background:none;border:none;color:var(--text);padding:16px 20px;font-family:inherit;font-size:15px;font-weight:700;cursor:pointer;text-align:right}
.faq-q span{color:var(--cyan);font-size:20px;transition:.3s}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--muted);padding:0 20px;font-size:14.5px}
.faq-item.open .faq-a{max-height:200px;padding-bottom:16px}
.quote{margin-bottom:16px}
.quote p{font-style:italic}
.quote small{color:var(--gold)}

/* Page hero */
.page-hero{padding:90px 0;background:linear-gradient(180deg,rgba(0,210,255,.08),transparent);text-align:center;border-bottom:1px solid var(--border)}
.page-hero h1{font-size:clamp(26px,4vw,44px);font-weight:900}
.page-hero p{color:var(--muted);margin-top:8px}

/* Contact */
.contact-box{padding:32px;border-radius:var(--radius)}
.contact-box h2{margin-bottom:20px;font-size:20px}
.contact-line{display:flex;gap:14px;align-items:center;padding:14px;border-radius:14px;background:var(--bg-2);border:1px solid var(--border);margin-bottom:12px;transition:.3s}
a.contact-line:hover{border-color:var(--cyan);transform:translateX(-4px)}
.ci{font-size:22px}
.contact-line strong{display:block;font-size:15px}
.contact-line small{color:var(--muted)}
.lead-form label{display:block;margin-bottom:14px;font-weight:700;font-size:14px}
.lead-form input,.lead-form select,.lead-form textarea{width:100%;margin-top:6px;background:var(--bg-2);border:1px solid var(--border);border-radius:12px;padding:12px;color:var(--text);font-family:inherit;font-size:15px;resize:vertical}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{outline:none;border-color:var(--cyan);box-shadow:var(--glow-c)}
.lead-form .btn{width:100%}
.form-msg{margin-top:12px;text-align:center;font-weight:800;color:#2ee6a8;min-height:24px}
.area-grid{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.center-p{text-align:center;margin-top:20px}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.75);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal.open{display:flex}
.modal-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);max-width:460px;width:100%;padding:34px;position:relative;box-shadow:var(--shadow);animation:pop .3s ease}
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}
.modal-box h3{color:var(--cyan);margin-bottom:14px}
.modal-box ul{padding-right:20px;color:var(--muted);font-size:15px}
.modal-close{position:absolute;top:12px;left:14px;background:none;border:none;color:var(--gold);font-size:28px;cursor:pointer;line-height:1}

/* Footer */
.site-footer{background:#060a13;border-top:1px solid var(--border);margin-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:30px;padding:56px 0 30px}
.footer-grid h4{color:var(--gold);margin-bottom:14px;font-size:16px}
.footer-grid a{display:block;color:var(--muted);margin-bottom:9px;font-size:14.5px;transition:.25s}
.footer-grid a:hover{color:var(--cyan);transform:translateX(-4px)}
.footer-grid p{color:var(--muted);font-size:14px;margin-top:12px}
.footer-bottom{border-top:1px solid var(--border);padding:18px 0;text-align:center;color:var(--muted);font-size:13.5px}

/* Float call */
.float-call{position:fixed;bottom:24px;left:24px;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;font-size:24px;background:linear-gradient(90deg,#00b3dd,var(--cyan));box-shadow:var(--glow-c);z-index:80;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(0,210,255,.5)}50%{box-shadow:0 0 0 16px rgba(0,210,255,0)}}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(28px);transition:.7s ease}
.reveal.vis{opacity:1;transform:none}

/* Responsive */
@media(max-width:920px){
  .main-nav{position:fixed;top:0;right:-290px;width:280px;height:100vh;background:var(--bg-2);flex-direction:column;align-items:flex-start;padding:90px 28px;gap:22px;transition:right .35s ease;z-index:110;box-shadow:-20px 0 50px rgba(0,0,0,.5)}
  .main-nav.open{right:0}
  .hamburger{display:flex;z-index:120}
  .two-col,.service-detail,.estimator{grid-template-columns:1fr}
  .service-detail.reverse img{order:0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .hero-stats{gap:22px}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
}