/* @META: SOUBOR: css/style.css */
/* @META: ÚČEL: B2C landing page. Logo absolutně centrované na hraně. Vysoký kontrast textů. */
:root{--bg-color:#050505;--text-main:#f0f0f0;--text-muted:#e0e0e0;--accent:#ff3333;--line-color:rgba(255, 255, 255, 0.15);--font-main:'Inter', sans-serif;--header-height:70px;--container-padding:5vw;}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background-color:var(--bg-color);color:var(--text-main);font-family:var(--font-main);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;}
h1,h2,h3{color:var(--text-main);line-height:1.1;font-weight:300;}
h2{font-size:clamp(1.3rem, 3.5vw, 1.8rem);margin-bottom:1.2rem;}
p{color:var(--text-muted);font-weight:300;font-size:clamp(1.05rem, 2.2vw, 1.25rem);}
.bg-lines{position:fixed;top:0;left:0;width:100%;height:100vh;display:flex;justify-content:space-evenly;pointer-events:none;z-index:0;}
.bg-lines .line{width:1px;height:100%;background-color:var(--line-color);}
.highlight{color:var(--accent);font-weight:600;}
.site-header{position:fixed;top:0;left:0;width:100%;height:var(--header-height);display:flex;justify-content:space-between;align-items:center;padding:0 var(--container-padding);border-bottom:1px solid var(--line-color);background:rgba(5, 5, 5, 0.7);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:100;}
.header-left,.header-right{display:flex;align-items:center;z-index:101;}
.header-left-text{font-size:clamp(1.2rem, 2.5vw, 1.8rem);text-transform:none;letter-spacing:2px;font-weight:600;color:var(--text-main);text-decoration:none;display:flex;align-items:center;}
.logo{position:absolute;left:50%;top:100%;transform:translate(-50%, -50%);z-index:105;width:75px;height:75px;display:flex;align-items:center;justify-content:center;margin:0;padding:0;}
.logo::before{content:'';position:absolute;top:50%;left:50%;width:120%;height:120%;background:radial-gradient(circle, rgba(5,5,5,1) 30%, rgba(5,5,5,0) 80%);transform:translate(-50%, -50%);z-index:-1;border-radius:50%;pointer-events:none;}
.header-logo{height:75px;width:auto;object-fit:contain;position:relative;z-index:2;display:block;}
.main-nav{display:flex;gap:3rem;}
.nav-link{color:var(--text-main);text-decoration:none;font-size:0.85rem;text-transform:uppercase;letter-spacing:1px;position:relative;}
.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:100%;height:1px;background-color:var(--text-main);transform:scaleX(0);transform-origin:right;transition:transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);}
.nav-link:hover::after{transform:scaleX(1);transform-origin:left;}
.menu-btn{display:none;background:none;border:none;cursor:pointer;width:30px;height:20px;position:relative;z-index:101;}
.burger-line{position:absolute;width:100%;height:1px;background-color:var(--text-main);left:0;transition:all 0.3s ease;}
.burger-line:first-child{top:4px;}
.burger-line:last-child{bottom:4px;}
.menu-btn.is-active .burger-line:first-child{transform:translateY(5px) rotate(45deg);}
.menu-btn.is-active .burger-line:last-child{transform:translateY(-5px) rotate(-45deg);}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;padding:1.1rem 2.3rem;border:1px solid var(--line-color);color:var(--text-main);text-decoration:none;text-transform:uppercase;font-size:0.9rem;letter-spacing:2px;transition:all 0.4s ease;cursor:pointer;font-weight:600;}
.btn-outline:hover{background-color:var(--text-main);color:var(--bg-color);}
.unified-hero{position:relative;width:100%;min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:calc(var(--header-height) + 2rem) 2rem 2rem;overflow:hidden;text-align:center;}
.hero-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1;pointer-events:none;}
.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(5, 5, 5, 0.78);z-index:2;pointer-events:none;}
.hero-content{position:relative;z-index:3;max-width:900px;width:100%;}
.hero-label{font-size:clamp(0.75rem, 2vw, 0.9rem);text-transform:uppercase;letter-spacing:4px;color:var(--text-muted);margin-bottom:1.5rem;font-weight:600;}
.hero-title{font-size:clamp(3.2rem, 9vw, 6rem);font-weight:100;margin-bottom:1.5rem;letter-spacing:-0.05em;line-height:1.05;}
.hero-desc{margin-bottom:3rem;font-size:clamp(1.15rem, 2.5vw, 1.4rem);max-width:750px;margin-left:auto;margin-right:auto;}
.info-section{background-color:var(--bg-color);position:relative;z-index:10;padding-top:7rem;}
.seo-intro{max-width:850px;margin:0 auto 6rem auto;text-align:center;padding:0 var(--container-padding);}
.section-title{font-size:clamp(2.2rem, 5.5vw, 4rem);margin-bottom:1.8rem;font-weight:100;line-height:1.1;}
.section-desc{font-size:clamp(1.1rem, 2.2vw, 1.25rem);color:var(--text-muted);}
.features-grid-people{display:grid;grid-template-columns:repeat(2, 1fr);background-color:var(--bg-color);border-top:1px solid var(--line-color);}
.grid-cell{padding:5rem 3rem;border-right:1px solid var(--line-color);border-bottom:1px solid var(--line-color);transition:background-color 0.4s ease;}
.grid-cell:hover{background-color:rgba(255, 255, 255, 0.03);}
.grid-cell:nth-child(2n){border-right:none;}
.grid-cell h3{font-size:1.6rem;margin-bottom:1rem;font-weight:400;color:var(--text-main);}
.cell-number{font-size:0.9rem;color:var(--accent);margin-bottom:2.5rem;font-weight:600;}
/* SEKCE FAQ */
.faq-section{max-width:850px;margin:4rem auto 6rem auto;padding:0 var(--container-padding);}
.faq-title{text-align:center;font-size:clamp(2rem, 4vw, 3rem);margin-bottom:3rem;font-weight:100;}
.faq-item{background:rgba(255,255,255,0.02);border:1px solid var(--line-color);margin-bottom:1rem;border-radius:8px;transition:background 0.3s;}
.faq-item:hover{background:rgba(255,255,255,0.04);}
.faq-item summary{padding:1.5rem;font-size:1.1rem;font-weight:400;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--text-main);outline:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';color:var(--accent);font-size:1.8rem;font-weight:300;transition:transform 0.3s;line-height:1;margin-left:15px;}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--text-muted);}
.faq-item p{padding:0 1.5rem 1.5rem 1.5rem;margin:0;font-size:1.05rem;color:var(--text-muted);line-height:1.6;}
/* SEO TAGS */
.seo-tags-wrapper{padding:4rem var(--container-padding);border-top:1px solid var(--line-color);text-align:center;}
.seo-tags-title{margin-bottom:2rem;font-size:1.2rem;color:var(--text-muted);font-weight:300;}
.seo-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;list-style:none;padding:0;margin:0 auto;max-width:1050px;}
.seo-tags li{background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.05);padding:8px 16px;border-radius:30px;font-size:0.85rem;color:rgba(255,255,255,0.4);transition:all 0.3s ease;white-space:nowrap;}
.seo-tags li:hover{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.9);border-color:rgba(255,255,255,0.2);transform:translateY(-2px);}
.seo-pillars{display:grid;grid-template-columns:1fr;gap:0;border-bottom:1px solid var(--line-color);}
.pillar-box{padding:8rem var(--container-padding);text-align:center;}
.site-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;padding:4rem var(--container-padding);border-top:1px solid var(--line-color);background-color:var(--bg-color);position:relative;z-index:10;gap:2.5rem;}
.footer-left .copyright{font-size:0.9rem;margin-top:0.7rem;color:var(--text-muted);}
.logo-footer{font-size:1.6rem;font-weight:300;letter-spacing:2px;}
.footer-right{display:flex;gap:2.5rem;flex-wrap:wrap;}
.footer-link{color:var(--text-main);text-decoration:none;font-size:0.9rem;transition:color 0.3s ease;font-weight:600;}
.footer-link:hover{color:var(--accent);}
address{font-style:normal;display:flex;gap:2.5rem;}
.anim-fade-up{opacity:0;transform:translateY(40px);transition:opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);}
.anim-fade-down{opacity:0;transform:translateY(-40px);transition:opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);}
.is-visible.anim-fade-up,.is-visible.anim-fade-down{opacity:1;transform:translateY(0);}
.delay-1{transition-delay:0.15s;}
.delay-2{transition-delay:0.3s;}
.delay-3{transition-delay:0.45s;}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0, 0, 0, 0);border:0;}
@media (max-width: 1150px){.menu-btn{display:block;z-index:102;}.main-nav{position:fixed;top:0;left:0;width:100vw;height:100vh;background:rgba(5, 5, 5, 0.99);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);flex-direction:column;justify-content:center;align-items:center;gap:2.5rem;z-index:101;opacity:0;pointer-events:none;transform:translateY(-30px);transition:all 0.5s cubic-bezier(0.16, 1, 0.3, 1);}.main-nav.is-open{opacity:1;pointer-events:all;transform:translateY(0);}.nav-link{font-size:1.8rem;}}
@media (max-width: 900px){.features-grid-people{grid-template-columns:1fr;}.grid-cell{border-right:none;padding:4rem 2rem;}}
@media (max-width: 768px){.site-footer{flex-direction:column;align-items:flex-start;}.footer-right{flex-direction:column;gap:1.2rem;}address{flex-direction:column;gap:1.2rem;}.header-logo{height:62px;}.unified-hero{padding-top:calc(var(--header-height) + 1rem);}}
.seo-prolink{color:inherit;text-decoration:none;transition:color 0.3s ease;font-weight:inherit;}.seo-prolink:hover{color:var(--accent);}