/* Czech Vanadium, a.s. -- static site stylesheet
   Rebuilt from the original Joomla site. No external requests, no tracking. */

:root{
  --dark:#343a40;
  --darker:#171717;
  --orange:#ffa500;
  --orange-dark:#e69500;
  --text:#656565;
  --heading:#222222;
  --border:#e7e7e7;
  --font: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  background:#fff;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{color:var(--heading);font-weight:700;margin:0 0 16px;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* Topbar: dark gap on the left (aligned above the logo), orange panel from the
   phone number all the way to the right edge (LinkedIn sits inside it, at the end) */
.topbar{
  background:var(--dark);
  color:#fff;
  font-size:14px;
  display:flex;
  height:38px;
}
.topbar-spacer{flex:0 0 auto;width:calc(max(20px, (100% - 1160px)/2) + 200px);}
.topbar-orange{
  background:var(--orange);
  flex:1 1 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-width:0;
  padding:0 max(20px, calc((100% - 1160px)/2)) 0 48px;
  margin-left:-28px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 28px 100%);
}
.topbar-links{display:flex;gap:24px;}
.topbar-links a{color:#fff;}
.topbar-links a:hover{color:var(--darker);}
.topbar-social{display:flex;align-items:center;}
.topbar-social a{color:#fff;font-size:16px;}
@media (max-width:700px){
  .topbar-spacer{width:70px;}
  .topbar-orange{padding:0 12px 0 40px;}
  .topbar-links{gap:12px;font-size:12.5px;}
}

/* Header / nav */
header.site-header{background:var(--dark);position:sticky;top:0;z-index:500;box-shadow:0 2px 10px rgba(0,0,0,.15);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:88px;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-family:Georgia,'Times New Roman',serif;line-height:1;}
.logo img{height:44px;width:auto;display:block;}
.logo .mark{color:var(--orange);font-size:34px;font-weight:700;font-style:italic;transform:rotate(8deg);display:inline-block;}
.logo .word{font-size:22px;letter-spacing:0.5px;}
.logo .word b{display:block;font-family:var(--font);font-weight:800;font-size:22px;letter-spacing:1px;}
.logo .word i{font-style:italic;font-size:20px;font-weight:300;}

nav.main-nav ul{list-style:none;display:flex;gap:30px;margin:0;padding:0;align-items:center;}
nav.main-nav a{color:#fff;font-weight:600;font-size:15px;text-transform:none;}
nav.main-nav a:hover, nav.main-nav a.active{color:var(--orange);}
.lang-switch{margin-left:20px;display:flex;align-items:center;}
.lang-switch a{display:flex;align-items:center;gap:6px;color:#fff;font-weight:600;font-size:14px;border:1px solid rgba(255,255,255,.3);padding:5px 10px;border-radius:3px;}
.lang-switch a:hover{border-color:var(--orange);color:var(--orange);}
.flag-ico{width:19px;height:13px;display:inline-block;vertical-align:-2px;margin-right:5px;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.2);}

/* Mobile hamburger + off-canvas menu (hidden on desktop) */
.hamburger{display:none;background:none;border:0;color:#fff;padding:6px;cursor:pointer;line-height:0;}
.hamburger .i{width:26px;height:26px;}
.nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:900;opacity:0;visibility:hidden;transition:opacity .25s ease;}
.nav-overlay.open{opacity:1;visibility:visible;}
.mobile-nav{position:fixed;top:0;right:0;height:100%;width:300px;max-width:85vw;background:#fff;z-index:950;
  transform:translateX(100%);transition:transform .25s ease;display:flex;flex-direction:column;box-shadow:-6px 0 24px rgba(0,0,0,.2);}
.mobile-nav.open{transform:translateX(0);}
.mobile-nav-head{background:var(--dark);display:flex;align-items:center;justify-content:space-between;padding:14px 18px;flex:0 0 auto;}
.mobile-nav-head .lang-switch{margin-left:0;}
.mobile-nav-close{background:none;border:0;color:#fff;font-size:24px;line-height:1;cursor:pointer;padding:4px 8px;}
.mobile-nav-links{list-style:none;margin:0;padding:6px 22px;flex:1 1 auto;overflow-y:auto;}
.mobile-nav-links li{border-bottom:1px solid var(--border);}
.mobile-nav-links a{display:block;padding:15px 0;color:var(--heading);font-weight:600;font-size:16px;}
.mobile-nav-links a.active,.mobile-nav-links a:hover{color:var(--orange);}
.mobile-nav-contact{flex:0 0 auto;padding:20px 22px 26px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:14px;}
.mobile-nav-contact a{display:flex;align-items:center;gap:10px;color:var(--text);font-size:14.5px;}
.mobile-nav-contact .i{color:var(--orange);width:18px;height:18px;}
.mobile-nav-social a{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--dark);color:#fff;border-radius:3px;}

@media (max-width:900px){
  .nav-wrap{height:76px;}
  nav.main-nav, header.site-header .lang-switch, .topbar{display:none;}
  .hamburger{display:block;}
}

/* Hero */
.hero{position:relative;background:#000 url('/assets/img/hero.jpg') center/cover no-repeat;}
.hero-inner{height:min(64vw,520px);min-height:280px;}
.hero-shape{
  background:#fff;
  height:60px;
  margin-top:-1px;
  clip-path: polygon(0 100%, 45% 0, 55% 0, 100% 100%);
}

/* Page header (inner pages) - plain, like the original (no dark banner) */
.page-header{background:#fff;padding:50px 0 0;}
.page-header h1{color:var(--heading);margin:0 0 18px;font-size:32px;}

/* Thin divider under headings: light grey line with a short orange accent at the end */
.heading-rule{position:relative;height:2px;background:var(--border);margin:0 0 34px;}
.heading-rule:after{content:"";position:absolute;right:0;top:0;height:2px;width:18%;min-width:60px;background:var(--orange);}

/* Sections */
section{padding:70px 0;}
.section-label{color:var(--orange);text-transform:uppercase;letter-spacing:1px;font-weight:700;font-size:13px;display:block;margin-bottom:10px;}
.center{text-align:center;}
.lead{max-width:760px;margin:0 auto 30px;}

/* Stats - single inline row: label + big numbers */
.stats-row{display:flex;align-items:baseline;flex-wrap:wrap;gap:36px;margin:36px 0 0;}
.stats-label{font-weight:700;color:var(--heading);font-size:17px;}
.stat-inline{display:inline-flex;align-items:baseline;gap:8px;}
.stat-inline .num{font-size:38px;font-weight:800;color:var(--heading);line-height:1;}
.stat-inline .unit{font-style:italic;color:var(--text);font-size:17px;}

/* Cards / teaser grid - dark info cards with corner brackets */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:16px;}
@media (max-width:900px){.grid-3{grid-template-columns:1fr;}}
.info-card{position:relative;background:var(--dark);color:#c7c9cc;text-align:center;padding:38px 26px;}
.info-card:before,.info-card:after{content:"";position:absolute;width:22px;height:22px;border:2px solid var(--orange);}
.info-card:before{top:12px;left:12px;border-right:none;border-bottom:none;}
.info-card:after{bottom:12px;right:12px;border-left:none;border-top:none;}
.info-card h3{color:#fff;font-size:19px;margin-bottom:14px;}
.info-card p{font-size:14.5px;line-height:1.7;margin:0;}

/* Commitments section: heading + square-bullet list next to ECO logo */
.section-divider{border:0;border-top:1px solid var(--border);margin:0;}
.commit-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;}
@media (max-width:800px){.commit-grid{grid-template-columns:1fr;}}
.commit-grid h2{margin-bottom:6px;}
.eco-logo{text-align:center;}
.eco-logo img{max-width:280px;margin:0 auto;}
.commit-list{max-width:640px;margin:18px 0 0;padding:0;list-style:none;}
.commit-list li{position:relative;padding:7px 0 7px 20px;color:var(--text);}
.commit-list li:before{content:"";position:absolute;left:0;top:16px;width:7px;height:7px;background:var(--heading);}

/* Timeline (About us) */
.timeline{position:relative;max-width:920px;margin:50px auto 0;padding-left:0;}
.timeline:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--border);}
.t-item{position:relative;width:50%;padding:0 40px 46px;}
.t-item:nth-child(odd){left:0;text-align:right;}
.t-item:nth-child(even){left:50%;text-align:left;}
.t-item .dot{position:absolute;top:2px;width:12px;height:12px;border-radius:50%;background:var(--orange);border:3px solid #fff;box-shadow:0 0 0 1px var(--border);}
.t-item:nth-child(odd) .dot{right:-7px;}
.t-item:nth-child(even) .dot{left:-7px;}
.t-item .year{font-weight:800;color:var(--heading);font-size:18px;margin-bottom:6px;}
.t-item p{font-style:italic;font-size:14.5px;margin:0;}
@media (max-width:700px){
  .timeline:before{left:6px;}
  .t-item, .t-item:nth-child(even){width:100%;left:0;text-align:left;padding-left:34px;}
  .t-item:nth-child(odd) .dot, .t-item:nth-child(even) .dot{left:0;}
}

/* Products */
.product-block{padding:50px 0;border-bottom:1px solid var(--border);text-align:center;}
.product-block:last-child{border-bottom:none;}
.product-block h1, .product-block h2{margin-bottom:8px;}
.product-block .subtitle{max-width:700px;margin:0 auto 10px;color:var(--text);}

.fev-grades{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin-top:40px;}
@media (max-width:800px){.fev-grades{grid-template-columns:1fr;}}
.grade h3{font-size:19px;margin:22px 0 18px;}

.donut{width:190px;height:190px;border-radius:50%;margin:0 auto;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(0,0,0,.12);}
.donut span{background:#fff;border-radius:50%;width:60%;height:60%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--heading);text-align:center;box-shadow:inset 0 0 0 1px rgba(0,0,0,.04);}

.chem-legend{font-size:13.5px;max-width:420px;margin:0 auto;}
.chem-legend .row{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:8px;}
.chem-legend .sw{display:inline-block;width:11px;height:11px;border-radius:2px;margin-right:5px;vertical-align:middle;}
.chem-legend .trace{}

.single-chart{margin-top:30px;}
.pie-img{max-width:260px;margin:0 auto;}

/* Documentation cards */
.doc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:10px;max-width:900px;}
@media (max-width:700px){.doc-grid{grid-template-columns:1fr;}}
.doc-card{background:var(--orange);color:#fff;padding:36px 20px;text-align:center;min-height:150px;display:flex;flex-direction:column;justify-content:center;transition:background .2s;}
.doc-card:hover{background:var(--orange-dark);}
.doc-grid.square{max-width:450px;}
.doc-grid.square .doc-card{aspect-ratio:1/1;padding:20px 14px;}
.doc-card .kicker{font-weight:800;text-transform:uppercase;letter-spacing:.5px;position:relative;padding-bottom:12px;margin-bottom:12px;}
.doc-card .kicker:after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:40px;height:2px;background:rgba(255,255,255,.7);}

/* Careers */
.careers-box{max-width:820px;margin:0 auto;border:1px solid var(--border);padding:40px;text-align:center;}
.careers-box .icon{color:var(--orange);font-size:40px;margin-bottom:14px;}
.mail-cta{width:56px;height:56px;border-radius:50%;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:center;margin:26px auto 0;font-size:20px;}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:60px;}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.contact-info li{display:flex;gap:14px;margin-bottom:22px;}
.contact-info .ic{color:var(--orange);font-size:20px;flex:0 0 24px;}
.contact-form label{display:block;font-size:14px;margin-bottom:6px;color:var(--heading);}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:18px;}
@media (max-width:600px){.contact-form .row{grid-template-columns:1fr;}}
.contact-form input, .contact-form textarea{width:100%;padding:11px 14px;border:1px solid var(--border);font-family:inherit;font-size:15px;}
.contact-form textarea{min-height:110px;}
.btn{display:inline-block;background:var(--orange);color:#fff;border:none;padding:13px 30px;font-weight:700;letter-spacing:.5px;cursor:pointer;text-transform:uppercase;font-size:14px;}
.btn:hover{background:var(--orange-dark);}
.legal-note{margin-top:40px;font-size:13px;color:#999;border-top:1px solid var(--border);padding-top:20px;}

/* Footer */
footer.site-footer{background:var(--darker);color:#999;padding:60px 0 24px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.3fr;gap:40px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid h4{color:#fff;font-size:16px;margin-bottom:14px;position:relative;padding-bottom:12px;}
.footer-grid h4:after{content:"";position:absolute;left:0;bottom:0;width:36px;height:2px;background:var(--orange);}
.footer-grid ul{list-style:none;margin:0;padding:0;}
.footer-grid li{margin-bottom:10px;}
.footer-grid a:hover{color:var(--orange);}
.footer-contact li{display:flex;gap:10px;margin-bottom:14px;}
.footer-contact .ic{color:var(--orange);}
.footer-bottom{text-align:center;border-top:1px solid #2a2a2a;margin-top:40px;padding-top:20px;font-size:13px;}

/* Utility icons (inline SVG currentColor) */
.i{width:1em;height:1em;display:inline-block;vertical-align:-0.125em;fill:currentColor;}

/* Back-to-top floating button */
.back-to-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--orange);color:#fff;border:none;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,.28);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, visibility .25s ease, transform .25s ease, background .2s ease;
  z-index:400;cursor:pointer;padding:0;}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-to-top:hover{background:var(--dark);}
.back-to-top svg{width:22px;height:22px;}
@media (max-width:700px){
  .back-to-top{right:16px;bottom:16px;width:44px;height:44px;}
}