/* ===========================================================
   Jeesuu Industrial Technology — English Website
   Dark Theme: Deep Navy + Blue + Cyan
   Premium B2B Industrial Equipment Distributor
   =========================================================== */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --pri:#3b82f6;--pri-dark:#2563eb;--pri-light:#60a5fa;
  --cyan:#06b6d4;--cyan-dark:#0891b2;--cyan-light:#22d3ee;
  --bg-darkest:#060b14;--bg-dark:#0b1120;--bg-card:#131c2e;
  --bg-card2:#182339;--bg-elevated:#1e2c45;
  --border:#1e3050;--border-light:#294060;
  --text:#e2e8f0;--text-dim:#94a3b8;--text-muted:#64748b;
  --w:#fff;--shadow:0 4px 24px rgba(0,0,0,.4);--shadow-lg:0 8px 48px rgba(0,0,0,.55);
  --r:10px;--r-sm:6px;--tran:all .25s ease;
  --grad-hero:linear-gradient(160deg,#060b14 0%,#0b1833 30%,#0f2348 60%,#153062 100%);
  --grad-blue:linear-gradient(135deg,#1d4ed8,#3b82f6,#06b6d4);
  --grad-cyan:linear-gradient(135deg,#0891b2,#06b6d4,#22d3ee);
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Segoe UI','Helvetica Neue',Arial,system-ui,sans-serif;
  color:var(--text);background:var(--bg-darkest);line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--pri-light);text-decoration:none;transition:var(--tran)}
a:hover{color:var(--cyan-light)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1260px;margin:0 auto;padding:0 24px}

/* Top Bar */
.topbar{background:rgba(0,0,0,.5);color:var(--text-dim);font-size:.78rem;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.04)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar a{color:var(--text-dim)}
.topbar a:hover{color:var(--w)}
.top-contact{display:flex;gap:22px;flex-wrap:wrap}
.top-lang{display:flex;gap:8px}
.top-lang a{padding:4px 14px;border:1px solid var(--border);border-radius:3px;font-size:.7rem;letter-spacing:.5px;color:var(--text-dim);text-transform:uppercase}
.top-lang a.active,.top-lang a:hover{background:var(--pri);border-color:var(--pri);color:#fff}

/* Header */
.header{background:rgba(11,17,32,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:14px 0;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000}
.header .container{display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo-icon{width:50px;height:50px;background:var(--grad-blue);border-radius:var(--r);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:24px;flex-shrink:0;box-shadow:0 0 20px rgba(59,130,246,.3)}
.logo-text h1{font-size:1.15rem;color:var(--w);font-weight:700;line-height:1.25}
.logo-text span{font-size:.7rem;color:var(--text-muted);display:block;letter-spacing:.3px}

/* Nav */
.nav{display:flex;list-style:none;gap:2px;align-items:center}
.nav>li{position:relative}
.nav>li>a{display:block;padding:11px 18px;color:var(--text-dim);font-size:.9rem;font-weight:500;border-radius:var(--r-sm);transition:var(--tran);white-space:nowrap}
.nav>li>a:hover,.nav>li.active>a{background:var(--pri);color:#fff}
.nav .dropdown{position:absolute;top:100%;left:0;background:var(--bg-card2);min-width:220px;box-shadow:var(--shadow-lg);border-radius:var(--r);border:1px solid var(--border);opacity:0;visibility:hidden;transform:translateY(12px);transition:var(--tran);list-style:none;padding:6px 0;z-index:200}
.nav li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.nav .dropdown li a{display:block;padding:10px 20px;color:var(--text-dim);font-size:.83rem;transition:var(--tran)}
.nav .dropdown li a:hover{background:rgba(59,130,246,.1);color:var(--pri-light)}
.nav-toggle{display:none;background:none;border:none;font-size:28px;cursor:pointer;color:var(--text);padding:4px 8px}

/* Hero */
.hero{
  background:var(--grad-hero);
  color:#fff;padding:120px 0 100px;text-align:center;position:relative;overflow:hidden;
  border-bottom:1px solid var(--border);
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 50%,rgba(6,182,212,.08) 0%,transparent 50%),
    radial-gradient(ellipse at 80% 30%,rgba(59,130,246,.1) 0%,transparent 50%),
    radial-gradient(ellipse at 50% 80%,rgba(139,92,246,.05) 0%,transparent 40%);
}
.hero::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(59,130,246,.4),rgba(6,182,212,.4),transparent);
}
.hero .container{position:relative;z-index:1}
.hero .hero-badge{display:inline-block;padding:6px 18px;background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.3);border-radius:30px;font-size:.78rem;color:var(--pri-light);margin-bottom:20px;letter-spacing:.5px}
.hero h1{font-size:3rem;font-weight:800;letter-spacing:-1px;line-height:1.15;margin-bottom:18px}
.hero h1 .accent{background:var(--grad-cyan);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.1rem;color:var(--text-dim);max-width:720px;margin:0 auto 40px;line-height:1.75}
.hero .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 36px;border-radius:var(--r-sm);font-size:.95rem;font-weight:600;cursor:pointer;border:2px solid transparent;transition:var(--tran);text-align:center}
.btn-primary{background:var(--grad-blue);color:#fff;border-color:transparent;box-shadow:0 4px 20px rgba(59,130,246,.3)}
.btn-primary:hover{box-shadow:0 6px 30px rgba(59,130,246,.5);transform:translateY(-2px);color:#fff}
.btn-outline{background:transparent;color:var(--text);border-color:var(--border-light)}
.btn-outline:hover{background:rgba(255,255,255,.06);border-color:var(--pri-light);color:#fff;transform:translateY(-2px)}
.btn-cyan{background:var(--grad-cyan);color:#000;box-shadow:0 4px 20px rgba(6,182,212,.3)}
.btn-cyan:hover{box-shadow:0 6px 30px rgba(6,182,212,.5);transform:translateY(-2px)}

/* Sections */
.section{padding:90px 0}
.section-alt{background:var(--bg-dark)}
.section-title{text-align:center;margin-bottom:60px}
.section-title .label{display:inline-block;font-size:.72rem;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:3px;margin-bottom:10px}
.section-title h2{font-size:2.2rem;color:var(--w);font-weight:700;margin-bottom:10px}
.section-title p{color:var(--text-dim);font-size:1rem;max-width:640px;margin:0 auto}
.divider{width:60px;height:3px;background:var(--grad-blue);margin:15px auto 0;border-radius:2px}

/* Hero Image Section */
.hero-image-section{padding:0;position:relative}
.hero-image-banner{width:100%;height:450px;background:var(--bg-card);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.hero-image-banner img{width:100%;height:100%;object-fit:cover}
.hero-image-banner .overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,11,20,.9) 0%,rgba(6,11,20,.4) 40%,rgba(6,11,20,.2) 100%);display:flex;align-items:flex-end;padding:60px 0;justify-content:center}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;max-width:920px;margin:0 auto}
.stat-card{text-align:center;padding:45px 24px;background:var(--bg-card);border-radius:var(--r);border:1px solid var(--border);transition:var(--tran);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-blue);opacity:0;transition:var(--tran)}
.stat-card:hover{border-color:var(--pri);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-card:hover::before{opacity:1}
.stat-card .stat-num{font-size:3.2rem;font-weight:800;background:var(--grad-blue);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1;display:flex;align-items:baseline;justify-content:center;gap:4px}
.stat-card .stat-num .suffix{font-size:1.6rem;-webkit-text-fill-color:var(--cyan)}
.stat-card .stat-label{margin-top:8px;color:var(--text-dim);font-size:.9rem;font-weight:500}

/* Industry Grid */
.industry-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.industry-tag{display:flex;align-items:center;justify-content:center;gap:8px;padding:20px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);font-weight:600;font-size:.85rem;color:var(--text-dim);transition:var(--tran);text-align:center;min-height:60px}
.industry-tag:hover{border-color:var(--pri);color:var(--w);box-shadow:0 0 24px rgba(59,130,246,.15);transform:translateY(-3px);background:var(--bg-elevated)}
.industry-tag .icon{font-size:1.4rem}

/* Brand Grid */
.brand-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:14px}
.brand-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);padding:28px 18px;text-align:center;font-weight:600;font-size:.85rem;color:var(--text-dim);transition:var(--tran);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:100px}
.brand-card:hover{border-color:var(--pri);box-shadow:0 0 30px rgba(59,130,246,.15);color:var(--w);transform:translateY(-3px);background:var(--bg-elevated)}
.brand-card.featured{border-color:var(--border-light);font-size:.95rem;font-weight:700;min-height:120px}
.brand-card img{max-height:50px;max-width:120px;filter:brightness(.9)}
.brand-card:hover img{filter:brightness(1.1)}
.brand-card.view-all{background:var(--grad-blue);color:#fff;border-color:transparent;font-size:.9rem;font-weight:700}
.brand-card.view-all:hover{box-shadow:0 0 30px rgba(59,130,246,.4)}

/* About Preview */
.about-preview{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:center}
.about-text h3{font-size:1.7rem;color:var(--w);margin-bottom:18px}
.about-text p{font-size:.9rem;color:var(--text-dim);line-height:1.9;margin-bottom:14px}
.about-visual{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);padding:55px 30px;text-align:center;min-height:360px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.about-visual .big-icon{font-size:4.5rem;margin-bottom:15px}
.about-visual .big-text{font-size:1.3rem;font-weight:700;color:var(--w)}

/* Industry Panels */
.industry-panel{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin-bottom:50px;padding-bottom:45px;border-bottom:1px solid var(--border);align-items:start}
.industry-panel:last-child{border-bottom:none;margin-bottom:0}
.industry-panel h3{font-size:1.35rem;color:var(--w);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.industry-panel h3 .ind-icon{font-size:1.8rem}
.industry-panel p{font-size:.87rem;color:var(--text-dim);line-height:1.9;margin-bottom:12px}
.client-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.client-tag{background:var(--bg-card2);border:1px solid var(--border);padding:6px 14px;border-radius:20px;font-size:.78rem;color:var(--text-dim);font-weight:500;transition:var(--tran)}
.client-tag:hover{background:var(--pri);border-color:var(--pri);color:#fff}
.brand-tags{display:flex;flex-wrap:wrap;gap:5px}
.brand-tag{background:rgba(59,130,246,.1);color:var(--pri-light);padding:5px 12px;border-radius:3px;font-size:.76rem;font-weight:500}

/* News */
.news-list{max-width:920px;margin:0 auto}
.news-item{display:flex;gap:22px;padding:24px 0;border-bottom:1px solid var(--border);transition:var(--tran)}
.news-item:hover{background:var(--bg-card);margin:0 -20px;padding-left:20px;padding-right:20px;border-radius:var(--r-sm);border-bottom-color:transparent}
.news-date{flex-shrink:0;width:64px;height:64px;background:var(--grad-blue);color:#fff;border-radius:var(--r);text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700}
.news-date .day{font-size:1.5rem;line-height:1}
.news-date .month{font-size:.68rem;text-transform:uppercase;letter-spacing:.5px}
.news-body{flex:1}
.news-body h4{font-size:1.05rem;color:var(--w);margin-bottom:6px;line-height:1.4}
.news-body h4 a{color:var(--w)}
.news-body h4 a:hover{color:var(--pri-light)}
.news-body p{font-size:.85rem;color:var(--text-dim);line-height:1.7}
.news-meta{display:flex;gap:12px;align-items:center;margin-top:8px}
.news-cat{display:inline-block;font-size:.7rem;color:var(--cyan);background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.2);padding:3px 12px;border-radius:20px;font-weight:600}

/* Filter Tabs */
.filter-tabs{display:flex;gap:10px;margin-bottom:40px;flex-wrap:wrap;justify-content:center}
.filter-tab{padding:10px 24px;border:1px solid var(--border);border-radius:30px;font-size:.83rem;font-weight:600;color:var(--text-dim);cursor:pointer;transition:var(--tran);background:transparent}
.filter-tab:hover,.filter-tab.active{background:var(--pri);border-color:var(--pri);color:#fff}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:25px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:var(--tran)}
.card:hover{border-color:var(--pri);box-shadow:var(--shadow-lg);transform:translateY(-5px)}
.card-img{height:210px;background:var(--bg-card2);display:flex;align-items:center;justify-content:center;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:28px}
.card-body h3{font-size:1.1rem;color:var(--w);margin-bottom:10px;font-weight:600}
.card-body p{font-size:.84rem;color:var(--text-dim);line-height:1.75}
.card-body .card-link{display:inline-block;margin-top:14px;font-weight:600;font-size:.85rem;color:var(--pri-light)}

/* Page Header */
.page-header{
  background:var(--grad-hero);color:#fff;padding:70px 0;text-align:center;
  border-bottom:1px solid var(--border);position:relative;
}
.page-header::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.4),rgba(6,182,212,.4),transparent)}
.page-header h1{font-size:2.4rem;font-weight:700;margin-bottom:8px}
.page-header p{opacity:.7;font-size:1rem}
.breadcrumb{background:var(--bg-dark);padding:12px 0;font-size:.83rem;color:var(--text-muted);border-bottom:1px solid var(--border)}
.breadcrumb a{color:var(--text-dim)}
.breadcrumb span{color:var(--cyan);font-weight:500}

/* Timeline */
.timeline{max-width:640px;margin:0 auto}
.timeline li{padding-left:34px;border-left:2px solid var(--border);padding-bottom:30px;position:relative}
.timeline li::before{content:'';position:absolute;left:-7px;top:5px;width:12px;height:12px;background:var(--pri);border-radius:50%;border:2px solid var(--bg-darkest);box-shadow:0 0 12px rgba(59,130,246,.4)}
.timeline .year{font-weight:800;color:var(--cyan);font-size:1.1rem;margin-bottom:5px}
.timeline .desc{color:var(--text-dim);font-size:.87rem;line-height:1.8}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px}
.contact-info h3{font-size:1.15rem;color:var(--w);margin:24px 0 8px;display:flex;align-items:center;gap:8px}
.contact-info h3:first-child{margin-top:0}
.contact-info p{color:var(--text-dim);font-size:.88rem;margin-bottom:4px;line-height:1.8}
.contact-info .info-icon{color:var(--cyan);font-size:1.2rem;width:24px;text-align:center}
.map-placeholder{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);min-height:400px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);text-align:center}

/* Form */
.contact-form{background:var(--bg-card);border:1px solid var(--border);padding:38px;border-radius:var(--r)}
.contact-form h3{font-size:1.35rem;color:var(--w);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.83rem;font-weight:600;color:var(--text-dim);margin-bottom:6px}
.form-group .req{color:#f87171}
.form-group input,.form-group textarea,.form-group select{
  width:100%;padding:13px 16px;background:var(--bg-darkest);border:1px solid var(--border);
  border-radius:6px;font-size:.88rem;font-family:inherit;color:var(--text);
  transition:var(--tran);
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{
  outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(59,130,246,.15);
}
.form-group textarea{resize:vertical;min-height:140px}
.btn-submit{width:100%;padding:15px;background:var(--grad-blue);color:#fff;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:var(--tran);box-shadow:0 4px 16px rgba(59,130,246,.25)}
.btn-submit:hover{box-shadow:0 6px 24px rgba(59,130,246,.45);transform:translateY(-2px)}

/* Brand Table */
.brand-table{width:100%;border-collapse:collapse;background:var(--bg-card);border-radius:var(--r);overflow:hidden;border:1px solid var(--border)}
.brand-table thead tr{background:var(--grad-blue)}
.brand-table th{padding:15px 18px;text-align:left;font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.5px;color:#fff}
.brand-table td{padding:13px 18px;font-size:.86rem;border-bottom:1px solid var(--border);color:var(--text-dim)}
.brand-table tbody tr:hover{background:var(--bg-card2)}
.brand-table tbody tr:last-child td{border-bottom:none}
.brand-link{font-weight:600;color:var(--pri-light)}

/* Footer */
.footer{background:var(--bg-darkest);border-top:1px solid var(--border);padding:70px 0 25px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:42px;margin-bottom:50px}
.footer h4{color:var(--w);font-size:.95rem;margin-bottom:20px;font-weight:600}
.footer ul li{margin-bottom:10px}
.footer ul li a{color:var(--text-muted);font-size:.83rem;transition:var(--tran)}
.footer ul li a:hover{color:var(--cyan-light);padding-left:4px}
.footer-contact p{font-size:.83rem;margin-bottom:7px;display:flex;align-items:center;gap:8px;color:var(--text-muted)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;text-align:center;font-size:.76rem;color:var(--text-muted)}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--text)}

/* Back to Top */
.back-top{position:fixed;bottom:30px;right:30px;width:46px;height:46px;background:var(--grad-blue);color:#fff;border:none;border-radius:50%;font-size:1.2rem;cursor:pointer;box-shadow:0 4px 20px rgba(59,130,246,.35);display:none;align-items:center;justify-content:center;z-index:999;transition:var(--tran)}
.back-top:hover{transform:translateY(-3px);box-shadow:0 6px 28px rgba(59,130,246,.5)}
.back-top.show{display:flex}

/* Animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes glow{0%,100%{box-shadow:0 0 20px rgba(59,130,246,.2)}50%{box-shadow:0 0 40px rgba(6,182,212,.4)}}
.glow{animation:glow 3s ease-in-out infinite}

/* Responsive */
@media(max-width:992px){
  .about-preview,.industry-panel,.contact-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.2rem}
  .section{padding:60px 0}
  .hero-image-banner{height:300px}
}
@media(max-width:768px){
  .nav{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--bg-card2);border:1px solid var(--border);padding:10px 0;max-height:80vh;overflow-y:auto}
  .nav.open{display:flex}
  .nav .dropdown{position:static;box-shadow:none;opacity:1;visibility:visible;transform:none;padding-left:20px;min-width:auto;border:none}
  .nav-toggle{display:block}
  .hero h1{font-size:1.8rem}
  .hero p{font-size:.9rem}
  .stats-grid{grid-template-columns:1fr;max-width:320px}
  .card-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
  .section-title h2{font-size:1.6rem}
  .topbar .container{flex-direction:column;text-align:center}
  .top-contact{justify-content:center}
  .news-item{flex-direction:column;gap:14px}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero{padding:70px 0}
  .hero .btn-group{flex-direction:column;align-items:center}
  .industry-grid{grid-template-columns:repeat(3,1fr);gap:8px}
  .industry-tag{font-size:.73rem;padding:14px 8px}
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .hero-image-banner{height:200px}
}