/* Instalaterstvi Vltava s.r.o. — base stylesheet */

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#F7F6F3;color:#1D2A35;font-family:Barlow,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}
a{color:#0E6BA8;text-decoration:none}
a:hover{color:#F26B21}
h1,h2,h3,h4{font-family:Archivo,system-ui,-apple-system,sans-serif;margin:0;letter-spacing:-0.02em;line-height:1.08}
p{margin:0;line-height:1.65}
img{max-width:100%;display:block}
table{width:100%}
button{font:inherit}

@keyframes slideIn{from{transform:translateX(30px);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes fadeUp{from{transform:translateY(14px);opacity:0}to{transform:translateY(0);opacity:1}}

/* ===== Containers ===== */
.wrap-1180{max-width:1180px;margin:0 auto;padding:0 24px}
.wrap-1080{max-width:1080px;margin:0 auto;padding:0 24px}
.wrap-1000{max-width:1000px;margin:0 auto;padding:0 24px}
.wrap-900{max-width:900px;margin:0 auto;padding:0 24px}
.wrap-820{max-width:820px;margin:0 auto;padding:0 24px}
.wrap-760{max-width:760px;margin:0 auto;padding:0 24px}

/* ===== Typography scale (responsive) ===== */
.h1-xl{font-size:60px;font-weight:800;margin:22px 0 20px;text-wrap:balance}
.h1-lg{font-size:46px;font-weight:800}
.h1-md{font-size:44px;font-weight:800}
.h1-sm{font-size:42px;font-weight:800}
.h1-cap{font-size:40px;font-weight:800}
.h2-section{font-size:38px;font-weight:800}
.h2-section-alt{font-size:40px;font-weight:800}
.eyebrow{font-family:'IBM Plex Mono',ui-monospace,Consolas,monospace;font-size:11.5px;letter-spacing:0.14em;color:#0E6BA8}

@media (max-width:900px){
  .h1-xl{font-size:42px}
  .h1-lg{font-size:34px}
  .h1-md{font-size:32px}
  .h1-sm{font-size:30px}
  .h1-cap{font-size:30px}
  .h2-section{font-size:28px}
  .h2-section-alt{font-size:28px}
}
@media (max-width:560px){
  .h1-xl{font-size:34px}
  .h1-lg{font-size:28px}
  .h1-md{font-size:27px}
  .h1-sm{font-size:26px}
  .h1-cap{font-size:26px}
}

/* ===== Grids ===== */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.hero-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.span-all{grid-column:1/-1}

@media (max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .grid-4{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll table{min-width:520px;border-collapse:collapse}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;font-family:Barlow,sans-serif;font-weight:600;cursor:pointer;border:0;text-align:center}
.btn-cta{background:#F26B21;color:#fff;padding:16px 26px;font-size:17px}
.btn-cta:hover{background:#D95511;color:#fff}
.btn-cta-sm{background:#F26B21;color:#fff;padding:15px 24px;font-size:15px;border-radius:11px}
.btn-cta-sm:hover{background:#D95511;color:#fff}
.btn-outline-invert{border:1px solid #35536F;color:#fff;padding:16px 26px;font-size:17px;background:transparent}
.btn-outline-invert:hover{color:#fff;border-color:#8FC2E6}
.btn-blue{background:#0E6BA8;color:#fff;padding:16px 26px;font-size:17px}
.btn-blue:hover{background:#0B1F33;color:#fff}
.btn-cart{position:relative;border:1px solid #D6DEE5;background:#fff;border-radius:10px;padding:10px 14px;font-weight:600;font-size:14px;color:#0B1F33}
.btn-cart:hover{border-color:#0E6BA8;color:#0E6BA8}
.btn-add{background:#0E6BA8;color:#fff;border:0;border-radius:9px;padding:9px 13px;font-weight:600;font-size:14px}
.btn-add:hover{background:#0B1F33;color:#fff}
.btn-chip{border:1px solid #D6DEE5;background:#fff;color:#1D2A35;border-radius:999px;padding:9px 18px;font-weight:600;font-size:14px}
.btn-chip.is-active{background:#0B1F33;color:#fff;border-color:#0B1F33}
.btn-chip:hover{border-color:#0E6BA8}
.btn-ghost-outline{border:1px solid #D6DEE5;background:#fff;border-radius:10px;padding:13px 20px;font-weight:600;font-size:15px;color:#1D2A35}
.btn-cookie-accept{border:0;background:#0E6BA8;color:#fff;border-radius:10px;padding:13px 22px;font-weight:600;font-size:15px}
.btn-cookie-accept:hover{background:#0B1F33}
.badge-count{display:inline-flex;min-width:20px;height:20px;padding:0 5px;margin-left:8px;align-items:center;justify-content:center;background:#F26B21;color:#fff;border-radius:10px;font-size:12px;font-weight:600}

/* ===== Cards ===== */
.card-link{background:#fff;border:1px solid #E3E8ED;border-radius:16px;padding:28px;display:block;color:#1D2A35}
.card-link:hover{border-color:#0E6BA8;color:#1D2A35}
.card{background:#fff;border:1px solid #E3E8ED;border-radius:16px;padding:28px}
.photo-box{border-radius:16px;overflow:hidden;border:1px solid #E3E8ED}
.photo-box img{width:100%;height:100%;object-fit:cover}

/* ===== Header / Nav ===== */
.topbar{background:#0B1F33;color:#9FB6C8;font-size:13.5px;letter-spacing:0.02em}
.topbar-inner{max-width:1180px;margin:0 auto;padding:9px 24px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid #E3E8ED}
.site-header-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;gap:16px;align-items:center;justify-content:space-between}
.brand{display:flex;gap:12px;align-items:center;color:#0B1F33}
.brand-mark{width:40px;height:40px;border-radius:11px;background:#0E6BA8;display:flex;align-items:center;justify-content:center;color:#fff;font-family:Archivo,sans-serif;font-weight:800;font-size:19px;flex:none}
.brand-name{font-family:Archivo,sans-serif;font-weight:800;font-size:17px;letter-spacing:-0.02em}
.brand-sub{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:#5A6B7A;letter-spacing:0.14em}
.site-nav{display:flex;gap:22px;align-items:center;font-weight:500;font-size:15px}
.site-nav a{color:#1D2A35}
.site-nav a.is-active{color:#0E6BA8}
.header-actions{display:flex;gap:12px;align-items:center}
.nav-toggle{display:none;border:1px solid #D6DEE5;background:#fff;border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span,.nav-toggle span:before,.nav-toggle span:after{content:"";display:block;width:20px;height:2px;background:#0B1F33;position:relative;transition:.15s}
.nav-toggle span:before{position:absolute;top:-6px}
.nav-toggle span:after{position:absolute;top:6px}

@media (max-width:900px){
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #E3E8ED;flex-direction:column;align-items:flex-start;padding:16px 24px;gap:14px;display:none}
  .site-nav.is-open{display:flex}
  .nav-toggle{display:flex}
  .header-actions .btn-cta-sm,.header-actions .btn-blue{padding:10px 14px;font-size:14px}
  .site-header-inner{flex-wrap:wrap;position:relative}
  .header-actions a[href^="tel:"]{padding:10px 14px;font-size:14px;border-radius:10px}
}
@media (max-width:480px){
  .header-actions a[href^="tel:"] .tel-full{display:none}
}

/* ===== Footer ===== */
.site-footer{background:#0B1F33;color:#93A9BA;margin-top:0}
.footer-top{max-width:1180px;margin:0 auto;padding:64px 24px 32px}
.footer-col-title{color:#fff;font-family:Archivo,sans-serif;font-weight:600;margin-bottom:14px}
.footer-links{display:grid;gap:9px;font-size:15px}
.footer-links a{color:#93A9BA}
.footer-bottom{max-width:1180px;margin:0 auto;padding:20px 24px 40px;border-top:1px solid #1B3550;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13.5px}

/* ===== Forms ===== */
.field{border:1px solid #D6DEE5;border-radius:10px;padding:13px 14px;font-family:Barlow,sans-serif;font-size:15px;width:100%;background:#fff;color:#1D2A35}
.field:focus{outline:2px solid #0E6BA8;outline-offset:1px}
textarea.field{min-height:110px;resize:vertical}
.form-stack{display:grid;gap:14px}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#5A6B7A}
.check-row input{margin-top:3px}
.form-msg{border-radius:12px;padding:16px 18px;font-size:15px;margin-bottom:16px}
.form-msg-ok{background:#E9F6EC;border:1px solid #BEE3C6;color:#1E5C29}
.form-msg-err{background:#FFF0EC;border:1px solid #F5C2B3;color:#7A2E17}
.honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ===== FAQ (details/summary) ===== */
.faq-item{background:#fff;border:1px solid #E3E8ED;border-radius:12px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 22px;font-family:Archivo,sans-serif;font-weight:600;font-size:18px;color:#1D2A35;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";color:#0E6BA8;font-size:20px;flex:none}
.faq-item[open] summary:after{content:"\2212"}
.faq-item p{padding:0 22px 22px;color:#5A6B7A;font-size:16px}

/* ===== Cart drawer ===== */
.cart-overlay{position:fixed;inset:0;z-index:90;display:none;justify-content:flex-end}
.cart-overlay.is-open{display:flex}
.cart-backdrop{position:absolute;inset:0;background:rgba(11,31,51,0.45);border:0;cursor:pointer;padding:0}
.cart-panel{position:relative;width:430px;max-width:100%;height:100%;background:#F7F6F3;display:flex;flex-direction:column;animation:slideIn .22s ease both;box-shadow:-20px 0 50px rgba(11,31,51,0.2)}
.cart-panel-head{padding:22px 24px;background:#fff;border-bottom:1px solid #E3E8ED;display:flex;justify-content:space-between;align-items:center}
.cart-close{border:0;background:none;font-size:22px;cursor:pointer;color:#5A6B7A;line-height:1}
.cart-body{flex:1;overflow:auto;padding:20px 24px;display:grid;gap:12px;align-content:start}
.cart-empty{text-align:center;padding:60px 20px;color:#5A6B7A}
.cart-line{background:#fff;border:1px solid #E3E8ED;border-radius:12px;padding:14px;display:grid;grid-template-columns:56px 1fr;gap:14px}
.cart-thumb{height:56px;border-radius:8px;background:repeating-linear-gradient(135deg,#EDF2F6,#EDF2F6 6px,#E4EBF1 6px 12px)}
.qty-btn{width:28px;height:28px;border:1px solid #D6DEE5;background:#fff;border-radius:7px;cursor:pointer;font-size:15px}
.cart-foot{background:#fff;border-top:1px solid #E3E8ED;padding:22px 24px;display:grid;gap:10px}
.cart-row{display:flex;justify-content:space-between;color:#5A6B7A;font-size:15px}
.cart-total{display:flex;justify-content:space-between;font-family:Archivo,sans-serif;font-weight:800;font-size:22px;padding-top:6px;border-top:1px solid #E3E8ED}

/* ===== Cookie banner ===== */
.cookie-banner{position:fixed;left:24px;right:24px;bottom:24px;z-index:95;background:#fff;border:1px solid #D6DEE5;border-radius:16px;box-shadow:0 18px 50px rgba(11,31,51,0.18);padding:24px;display:none;grid-template-columns:1fr auto;gap:26px;align-items:center;max-width:1132px;margin:0 auto}
.cookie-banner.is-visible{display:grid}
@media (max-width:700px){.cookie-banner{grid-template-columns:1fr}}

/* ===== Misc ===== */
.dot-list-item{display:flex;gap:12px;align-items:flex-start}
.dot{width:8px;height:8px;border-radius:50%;background:#0E6BA8;margin-top:8px;flex:none}
.check-item{display:flex;gap:12px}
.check-item .tick{color:#F26B21;font-weight:700}
.stars{color:#F26B21;letter-spacing:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:#0E6BA8;color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}