/* TIIHTRONICS — Light Modern Clean */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#ffffff;--surface:#f7f8fa;--surface2:#eef0f4;--border:#e0e2e8;
  --accent:#00b4d8;--accent-dk:#0077b6;--accent-glow:rgba(0,180,216,0.08);
  --text:#333;--muted:#777;--heading:#1a1a2e;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --max:1200px;--radius:8px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-dk)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:#ffffff;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--max);margin:0 auto;padding:0 24px}
.nav-logo{font-size:1.25rem;font-weight:700;letter-spacing:2px;color:var(--heading)}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none}
.nav-links a{color:#444;font-size:.875rem;font-weight:500;letter-spacing:.5px;text-transform:uppercase;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:#00b4d8}
.lang-toggle{background:var(--surface);border:1px solid var(--border);color:#555;padding:4px 12px;border-radius:4px;font-size:.75rem;font-weight:600;cursor:pointer;letter-spacing:1px;transition:all .2s}
.lang-toggle:hover{border-color:var(--accent);color:var(--accent)}
.hamburger{display:none;background:none;border:none;color:#333;font-size:1.5rem;cursor:pointer}

/* HERO */
.hero{padding:160px 0 100px;text-align:center;position:relative;overflow:hidden;background:#1a1a2e}
.hero-video{position:absolute;top:50%;left:50%;min-width:100%;min-height:100%;transform:translate(-50%,-50%);object-fit:cover;z-index:0}
.hero::before{content:'';position:absolute;inset:0;background:rgba(10,10,20,.55);z-index:1;pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.15;color:#fff;margin-bottom:20px;position:relative}
.hero h1 span{color:var(--accent)}
.hero p{font-size:1.125rem;color:rgba(255,255,255,.8);max-width:640px;margin:0 auto 36px;position:relative}
.hero .stat-box .number{color:var(--accent)}
.hero .stat-box .label{color:rgba(255,255,255,.7)}
.hero .btn-outline{border-color:rgba(255,255,255,.3);color:#fff}
.hero .btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius);font-weight:600;font-size:.9375rem;transition:all .25s;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dk);color:#fff}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* SECTIONS */
section{padding:80px 0}
.section-label{font-size:.75rem;text-transform:uppercase;letter-spacing:3px;color:var(--accent);font-weight:600;margin-bottom:12px}
.section-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:var(--heading);margin-bottom:16px}
.section-desc{color:var(--muted);max-width:600px;margin-bottom:48px}

/* GRID */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* CARDS */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:all .3s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,180,216,.1)}
.card-icon{width:48px;height:48px;border-radius:8px;background:var(--accent-glow);display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--accent);font-size:1.25rem;font-weight:700}
.card h3{font-size:1.125rem;font-weight:600;color:var(--heading);margin-bottom:8px}
.card p{color:var(--muted);font-size:.9375rem}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:.875rem;font-weight:500;color:var(--accent)}
.card-link:hover{color:var(--accent-dk)}

/* PARTNERS GRID on HOME */
#partners .section-label{color:rgba(255,255,255,.7)}
#partners .section-title{color:#fff}
#partners .section-desc{color:rgba(255,255,255,.75)}
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.partner-card{background:rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:all .3s;display:flex;flex-direction:column;align-items:center}
.partner-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,180,216,.25)}
.partner-card-logo{width:100%;max-width:180px;height:80px;object-fit:contain;margin-bottom:16px;border-radius:4px}
.partner-card h3{font-size:1.0625rem;font-weight:600;color:var(--heading);margin-bottom:6px}
.partner-card span{font-size:.8125rem;color:var(--muted)}

/* PARTNER DETAIL */
.partner-hero{padding:140px 0 70px;border-bottom:1px solid var(--border);background:var(--surface);position:relative}
.partner-hero::after{content:'';position:absolute;right:24px;top:50%;transform:translateY(-50%);width:500px;height:500px;background-image:var(--partner-bg);background-size:contain;background-repeat:no-repeat;background-position:center;opacity:.12;pointer-events:none;filter:invert(1) grayscale(100%)}
.partner-hero.logo-bright::after{opacity:.25;filter:grayscale(100%)}
.partner-hero .container{position:relative;z-index:1}
.partner-hero .section-label{margin-bottom:8px}
.partner-hero h1{font-size:clamp(2rem,5vw,3.25rem);font-weight:800;color:var(--heading);margin-bottom:16px}
.partner-hero p{color:var(--muted);max-width:640px;font-size:1.0625rem;line-height:1.7}
.partner-hero-inner{display:flex;align-items:center;gap:48px}
.partner-hero-text{flex:1}
.product-list{list-style:none;display:grid;gap:12px;margin-top:32px}
.product-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 24px;display:flex;align-items:center;gap:12px;transition:all .2s}
.product-item:hover{border-color:var(--accent)}
.product-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0}
.product-item span{font-size:.9375rem;color:var(--text)}

/* PRODUCT SECTION WATERMARK */
.product-section-watermark{position:relative;overflow:hidden}
.product-section-watermark::after{content:'';position:absolute;right:2%;top:50%;transform:translateY(-50%);width:360px;height:360px;background-image:var(--partner-logo);background-size:contain;background-repeat:no-repeat;background-position:center;opacity:.07;pointer-events:none;filter:grayscale(100%) invert(1)}

/* PRODUCT CATALOG CARDS */
.product-catalog{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;position:relative;z-index:1}
.product-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center;transition:all .3s;display:flex;flex-direction:column;align-items:center}
.product-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,180,216,.12)}
.product-card-icon{width:56px;height:56px;border-radius:12px;background:var(--accent-glow);display:flex;align-items:center;justify-content:center;margin-bottom:20px;color:var(--accent);font-size:1.5rem}
.product-card-img{width:100%;aspect-ratio:4/3;border-radius:8px;overflow:hidden;margin-bottom:20px;background:var(--surface);display:flex;align-items:center;justify-content:center}
.product-card-img img{width:100%;height:100%;object-fit:contain}
.product-card h3{font-size:1rem;font-weight:600;color:var(--heading);margin-bottom:8px;line-height:1.4}
.product-card p{font-size:.8125rem;color:var(--muted);line-height:1.5;margin-bottom:16px;flex:1}
.product-card .btn-sm{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:var(--radius);font-size:.8125rem;font-weight:600;background:var(--accent-glow);color:var(--accent);border:1px solid transparent;transition:all .25s;cursor:pointer;text-decoration:none}
.product-card .btn-sm:hover{background:var(--accent);color:#fff}

/* VALUES */
.value-card{text-align:center;padding:40px 24px}
.value-card .card-icon{margin:0 auto 16px}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:32px}
.contact-item{display:flex;gap:16px;align-items:flex-start}
.contact-item .icon{width:44px;height:44px;border-radius:8px;background:var(--accent-glow);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--accent);font-weight:700}
.contact-item h4{font-size:.9375rem;font-weight:600;color:var(--heading);margin-bottom:4px}
.contact-item p{color:var(--muted);font-size:.875rem}
.contact-form{display:flex;flex-direction:column;gap:16px}
.contact-form input,.contact-form textarea{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;color:var(--text);font-family:var(--font);font-size:.9375rem;transition:border-color .2s;width:100%}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent)}
.contact-form textarea{min-height:140px;resize:vertical}
.contact-form .btn{align-self:flex-start}

/* FOOTER */
.footer{border-top:1px solid var(--border);padding:48px 0 32px;background:var(--surface)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-copy{font-size:.8125rem;color:var(--muted)}
.footer-links{display:flex;gap:24px}
.footer-links a{color:var(--muted);font-size:.8125rem;transition:color .2s}
.footer-links a:hover{color:var(--accent)}

/* CTA BANNER */
.cta-banner{background:linear-gradient(135deg,var(--accent-dk),var(--accent));padding:64px 0;text-align:center;border-radius:0}
.cta-banner h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;color:#fff;margin-bottom:12px}
.cta-banner p{color:rgba(255,255,255,.8);margin-bottom:28px;font-size:1.0625rem}
.cta-banner .btn{background:#fff;color:var(--accent-dk)}
.cta-banner .btn:hover{background:var(--heading);color:#fff}

/* ABOUT */
.about-content{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-text h3{font-size:1.25rem;font-weight:600;color:var(--heading);margin-bottom:12px}
.about-text p{color:var(--muted);margin-bottom:20px}
.about-stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;text-align:center}
.about-stat .number{font-size:2.5rem;font-weight:800;color:var(--accent);line-height:1}
.about-stat .label{font-size:.8125rem;color:var(--muted);margin-top:8px}

/* STATS */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.stat-box{text-align:center}
.stat-box .number{font-size:2rem;font-weight:800;color:var(--accent)}
.stat-box .label{font-size:.8125rem;color:var(--muted);margin-top:4px}

/* NAV LOGO IMAGE */
.nav-logo-img{height:42px;width:auto;display:inline-block;vertical-align:middle}

/* PARTNER HERO IMAGE */
.partner-img{width:100%;max-width:700px;border-radius:var(--radius);border:1px solid var(--border);margin-top:32px}

/* SERVICES SECTION */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:all .3s}
.service-card:hover{border-color:var(--accent);box-shadow:0 4px 16px rgba(0,180,216,.08)}
.service-card h3{font-size:1rem;font-weight:600;color:var(--heading);margin-bottom:8px}
.service-card p{color:var(--muted);font-size:.875rem;line-height:1.6}

/* TERRITORY IMAGE */
.territory-img{width:100%;max-width:800px;border-radius:var(--radius);margin-top:24px}

/* CUSTOMERS / CLIENT LOGOS */
.customers-img{width:100%;max-width:800px;border-radius:var(--radius);margin-top:24px}
.trusted-section{position:relative;overflow:hidden;background:#1a1a2e}
.trusted-video{position:absolute;top:50%;left:50%;min-width:100%;min-height:100%;transform:translate(-50%,-50%);object-fit:cover;z-index:0}
.trusted-section::before{content:'';position:absolute;inset:0;background:rgba(10,10,20,.65);z-index:1;pointer-events:none}
.trusted-section .container{position:relative;z-index:2}
.trusted-section .section-label{color:var(--accent)}
.trusted-section .section-title{color:#fff}
.trusted-section .section-desc{color:rgba(255,255,255,.8)}
.client-logos{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.client-card{background:rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius);padding:24px 20px;display:flex;flex-direction:column;align-items:center;text-align:center;text-decoration:none;transition:all .3s}
.client-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,180,216,.2)}
.client-card img{width:100%;max-width:180px;height:80px;object-fit:contain;margin-bottom:12px}
.client-card img.logo-padded{transform:scale(1.8)}
.client-card img.logo-invert{filter:invert(1)}
.client-card span{font-size:.8125rem;color:var(--muted);font-weight:500}

/* TRUST */
.trust-logos{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:center;margin-top:32px;opacity:.7}
.trust-logos span{font-size:.875rem;color:var(--muted);font-weight:500}

/* RESPONSIVE */
@media(max-width:968px){
  .grid-3,.grid-4,.services-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid,.client-logos{grid-template-columns:repeat(2,1fr)}
  .contact-grid,.about-content{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .product-catalog{grid-template-columns:repeat(2,1fr)}
  .partner-hero-inner{flex-direction:column;gap:32px}
  .partner-hero::after{right:20px;width:200px;height:200px;opacity:.08}
}
@media(max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .client-logos{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .product-catalog{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#ffffff;flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--border);box-shadow:0 4px 8px rgba(0,0,0,.06)}
  .nav-links.open{display:flex}
  .hamburger{display:block}
  .hero{padding:120px 0 60px}
  .footer-inner{flex-direction:column;text-align:center}
  .partner-hero::after{right:50%;transform:translate(50%,-50%);width:250px;height:250px;opacity:.06}
}
/* Product Detail Pages */
.breadcrumb{padding:12px 0;background:var(--surface);border-bottom:1px solid var(--border);margin-top:64px}
.breadcrumb .container{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted);flex-wrap:wrap}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb strong{color:var(--text)}
.product-detail-section{padding:48px 0 64px}
.product-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.product-gallery{position:sticky;top:88px}
.product-image-main{width:100%;aspect-ratio:1;background:var(--surface);border:2px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9375rem;margin-bottom:12px}
.product-image-main img{width:100%;height:100%;object-fit:contain;border-radius:var(--radius)}
.product-image-main.has-image{border-style:solid;border-color:var(--border)}
.product-thumbnails{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.product-thumb{aspect-ratio:1;background:var(--surface);border:2px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:.6875rem;color:var(--muted);cursor:pointer;transition:border-color .2s;overflow:hidden}
.product-thumb img{width:100%;height:100%;object-fit:contain}
.product-thumb:hover,.product-thumb.active{border-color:var(--accent)}
.product-info{padding-top:8px}
.product-brand-badge{display:inline-flex;align-items:center;gap:6px;background:var(--accent-glow);color:var(--accent-dk);padding:6px 14px;border-radius:50px;font-size:.75rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;margin-bottom:16px}
.product-detail-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;color:var(--heading);line-height:1.2;margin-bottom:8px}
.product-detail-subtitle{font-size:1.0625rem;color:var(--muted);margin-bottom:24px;line-height:1.6}
.product-actions{display:flex;gap:12px;margin-bottom:32px}
.product-actions .btn{flex:1;justify-content:center;text-align:center}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dk);transform:translateY(-2px)}
.product-highlights{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:8px}
.highlight-item{display:flex;align-items:center;gap:12px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.highlight-icon{width:40px;height:40px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;flex-shrink:0}
.highlight-text{font-size:.8125rem;font-weight:600;color:var(--heading)}
.product-tabs{margin-top:64px;border-top:1px solid var(--border);padding-top:48px}
.tabs-nav{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:32px}
.tab-btn{padding:12px 24px;background:none;border:none;font-size:.9375rem;font-weight:600;color:var(--muted);cursor:pointer;position:relative;transition:color .2s}
.tab-btn::after{content:'';position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transition:transform .25s}
.tab-btn:hover{color:var(--accent)}
.tab-btn.active{color:var(--accent)}
.tab-btn.active::after{transform:scaleX(1)}
.tab-content{display:none}
.tab-content.active{display:block}
.tab-content h3{font-size:1.25rem;font-weight:700;color:var(--heading);margin-bottom:16px}
.tab-content p{color:var(--muted);line-height:1.8;margin-bottom:16px}
.tab-content ul{list-style:none;padding:0}
.tab-content ul li{padding:8px 0;padding-left:20px;position:relative;color:var(--text);font-size:.9375rem}
.tab-content ul li::before{content:'';position:absolute;left:0;top:16px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.spec-table{width:100%;border-collapse:collapse;margin:16px 0 24px;font-size:.9375rem}
.spec-table th,.spec-table td{padding:10px 14px;border:1px solid var(--border);text-align:left}
.spec-table th{background:var(--surface);font-weight:700;color:var(--heading);white-space:nowrap}
.spec-table td{color:var(--text)}
.spec-table tbody tr:hover{background:var(--surface)}
@media(max-width:600px){.spec-table{font-size:.8125rem}.spec-table th,.spec-table td{padding:6px 8px}}
.related-section{padding:64px 0;background:var(--surface);border-top:1px solid var(--border)}
.related-section .section-title{margin-bottom:32px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .3s;text-decoration:none;display:block}
.related-card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,180,216,.12)}
.related-card-image{height:160px;background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.8125rem;border-bottom:1px solid var(--border);overflow:hidden}
.related-card-image img{width:100%;height:100%;object-fit:contain;padding:12px}
.related-card-body{padding:20px}
.related-card-body h4{font-size:.9375rem;font-weight:600;color:var(--heading);margin-bottom:6px}
.related-card-body p{font-size:.8125rem;color:var(--muted);line-height:1.5;margin-bottom:12px}
a.product-card{color:inherit;text-decoration:none}
@media(max-width:968px){
  .product-detail-grid{grid-template-columns:1fr;gap:32px}
  .product-gallery{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .product-actions{flex-direction:column}
  .product-highlights{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
}

/* ACCESSIBILITY */
.skip-nav{position:absolute;top:-40px;left:0;background:var(--accent-dk);color:#fff;padding:8px 16px;z-index:200;font-size:.875rem;font-weight:600;transition:top .2s}
.skip-nav:focus{top:0;color:#fff}
*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.btn:focus-visible,.tab-btn:focus-visible,.product-thumb:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-links a:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:2px}