/* RUCTO – Ing. Renata Rudošová · jeden stylopis bez knihoven */
@font-face{font-family:"Open Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url(../fonts/opensans-latin-ext.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Open Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url(../fonts/opensans-latin.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{--blue:#485e88;--blue-d:#3b4d70;--ink:#46586f;--head:#3d4351;--bg:#f3f4f8;--line:#e6e9ea;--foot-d:#373d4a;--w:1170px}
*,::before,::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
html:has(dialog[open]),html.menu-open{overflow:hidden}
body{margin:0;font:300 17px/1.65 "Open Sans",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#fff;overflow-x:hidden}
img{max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3,p,ul,figure{margin:0}
[hidden]{display:none!important}
:focus-visible{outline:3px solid #f69d52;outline-offset:3px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.wrap{max-width:var(--w);margin:0 auto;padding:0 15px}
.i{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* tlačítka */
.btn{display:inline-block;font-family:inherit;font-size:13px;font-weight:600;line-height:1.2;letter-spacing:.05em;text-transform:uppercase;text-decoration:none;text-align:center;padding:9px 38px;border:2px solid;border-radius:40px;background:none;cursor:pointer;transition:background-color .25s,color .25s,border-color .25s}
.btn-lg{padding:15px 40px}
.btn-sm{padding:7px 22px}
.btn-fill{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-fill:hover{background:var(--blue-d);border-color:var(--blue-d)}
.btn-white{border-color:#fff;color:#fff;font-size:14px}
.btn-white:hover{background:#fff;color:var(--blue)}
.btn-ghost{border-color:var(--blue);color:var(--blue);padding:10px 34px}
.btn-ghost:hover{background:var(--blue);color:#fff}

/* hlavička */
.top{position:fixed;inset:0 0 auto 0;z-index:50;transition:background-color .3s,box-shadow .3s}
.top-in{max-width:var(--w);margin:0 auto;padding:28px 15px;display:flex;align-items:center;gap:40px;border-bottom:1px solid rgba(255,255,255,.2);transition:padding .3s,border-color .3s}
.top.solid{background:var(--blue);box-shadow:0 2px 14px rgba(20,30,55,.28)}
.top.solid .top-in{padding-block:10px;border-color:transparent}
.logo{display:block;line-height:0}
.logo img{width:132px;height:auto;transition:width .3s}
.top.solid .logo img{width:78px}
.menu{display:flex;align-items:center;flex:1;gap:20px}
.menu ul{display:flex;gap:28px;list-style:none;padding:0;margin:0 0 0 14px}
.menu ul a{color:#fff;text-decoration:none;text-transform:uppercase;font-size:22px;transition:color .2s}
.menu ul a:hover{color:#cfd6e6}
.menu .btn{margin-left:auto}
.burger{display:none}

/* úvod */
.hero{position:relative;min-height:750px;display:grid;place-items:center;text-align:center;color:#fff;background:#2b3250;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-in{position:relative;max-width:960px;padding:210px 20px 130px}
.hero h1{font-size:clamp(34px,5vw,50px);font-weight:700;line-height:1.15;margin-bottom:28px}
.intro{font-size:clamp(16px,2.1vw,23px);text-transform:uppercase;line-height:1.55;margin-bottom:48px}
.down{position:absolute;left:50%;bottom:26px;width:44px;height:44px;margin-left:-22px;display:grid;place-items:center;color:#fff;font-size:34px;animation:plav 2s ease-in-out infinite}
@keyframes plav{50%{transform:translateY(-9px)}}

/* nabídka */
.features{position:relative;overflow:hidden;background:var(--bg);padding:120px 0 150px}
.lead{max-width:900px}
.lead p{font-size:18px;line-height:1.62;margin-bottom:1.35em}
.stack{margin:44px 0 0 calc(50% + 6px)}
.stack article{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.stack article:first-child{padding-top:0}
.stack article:last-child{border:0;padding-bottom:0}
.ico{width:36px;height:36px;margin-top:2px;fill:none;stroke:var(--blue);stroke-width:1.15;stroke-linecap:round;stroke-linejoin:round;flex:none}
h2.h5{font-size:18px;font-weight:500;letter-spacing:.01em;text-transform:uppercase;line-height:1.3;color:var(--head);margin-bottom:12px}
.chev{list-style:none;padding:0;font-size:16.5px;line-height:1.6}
.chev li{position:relative;padding-left:19px;margin:3px 0}
.chev li::before{content:"";position:absolute;left:1px;top:calc(.8em - 4px);width:6px;height:6px;border:solid var(--blue);border-width:1.5px 1.5px 0 0;transform:rotate(45deg)}
.art{display:block;pointer-events:none;user-select:none}
.art-calc{position:absolute;left:-4vw;bottom:-60px;width:clamp(420px,44vw,620px)}

.extra{position:relative;overflow:hidden;padding:110px 0 120px}
.extra-in{width:min(100%,500px)}
.extra h2{font-size:24px;font-weight:400;text-transform:uppercase;color:var(--head);line-height:1.3;margin:0 0 18px}
.extra h2:not(:first-child){margin-top:38px}
.extra .btn{margin-top:30px}
.art-papers{position:absolute;left:calc(50% + 20px);top:50%;transform:translateY(-50%);width:min(780px,calc(50vw - 20px))}

/* programy */
.programs{background:#5d7099 url(../img/slider.webp) center/cover;padding:110px 0 70px;text-align:center}
.track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;outline-offset:-3px}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:center;padding:0 15px 8px}
.slide img{display:block;width:82px;height:82px;margin:0 auto 26px;border-radius:50%;border:3px solid #fff;background:#fff}
.slide strong{display:block;font-size:clamp(26px,4vw,40px);font-weight:300;font-style:italic;line-height:1.2;color:#fff;margin-bottom:22px}
.slide span{display:block;font-size:14px;letter-spacing:2px;text-transform:uppercase;color:#f4f6fb}
.dots{display:flex;justify-content:center;gap:14px;margin-top:38px}
.dots button{position:relative;width:11px;height:11px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer}
.dots button::after{content:"";position:absolute;inset:-9px}
.dots button[aria-current=true]{background:#fff}

/* kontakt */
.contact{padding:110px 15px 120px;text-align:center}
.tel{font-size:30px;font-weight:300;line-height:1.3;color:var(--head);margin-bottom:6px}
.tel a{text-decoration:none}
.mail{font-weight:700;margin-bottom:44px}
.mail a{text-decoration:none}
.mail a:hover,.tel a:hover{text-decoration:underline}
.signup{position:relative;max-width:520px;margin:0 auto;text-align:left}
.fld{display:flex;align-items:center;min-height:55px;margin-bottom:12px;background:#fff;border:1px solid var(--line);border-radius:6px;transition:border-color .2s,box-shadow .2s}
.fld:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px rgba(72,94,136,.15)}
.fld .i{box-sizing:content-box;width:18px;height:18px;padding:6px 20px;border-right:1px solid var(--line);color:var(--blue);font-size:18px}
.fld input,.fld textarea{flex:1;min-width:0;border:0;border-radius:6px;background:none;outline:0;font-family:inherit;font-size:16px;font-weight:400;line-height:1.5;color:var(--head);padding:14px 18px}
.fld ::placeholder{color:#6f7b8c;opacity:1}
.fld-area{align-items:flex-start}
.fld-area .i{margin-top:12px}
.fld textarea{min-height:112px;resize:vertical}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.signup .btn[type=submit]{display:block;width:min(100%,320px);margin:22px auto 0}
.signup .btn[disabled]{opacity:.6;cursor:wait}
.note{font-size:13px;line-height:1.5;text-align:center;color:#66768b;margin-top:18px}
.msg{margin-top:18px;padding:14px 18px;border-radius:6px;font-weight:400;text-align:center}
.msg.ok{background:#e8f1ea;color:#245c39}
.msg.err{background:#fbeaea;color:#8a2a2a}

/* patička */
.totop{display:block;height:60px;background:#495061;color:#fff}
.totop .wrap{display:flex;justify-content:flex-end;height:100%;padding:0}
.totop .i{box-sizing:content-box;width:30px;height:30px;padding:15px 20px;background:rgba(0,0,0,.15);transition:background-color .2s}
.totop:hover .i{background:rgba(0,0,0,.4)}
.foot{background:linear-gradient(90deg,var(--head) 60%,var(--foot-d) 60%);color:#acb1b4;font-size:13px}
.foot-in{display:grid;grid-template-columns:3fr 2fr}
.foot-l{padding:110px 40px 110px max(15px,calc((100vw - var(--w))/2 + 15px))}
.foot-r{padding:110px 15px 110px 70px}
.links{display:flex;flex-wrap:wrap;gap:12px 30px;list-style:none;padding:25px 0 0;margin:0 0 45px;border-top:1px solid #4e566c}
.links a{color:#fff;text-transform:uppercase;text-decoration:none}
.links a:hover{color:#ccd}
.foot-l p{line-height:1.85}
.foot-r p{margin-bottom:14px;color:#fff;text-transform:uppercase}
.tiles{display:flex;flex-wrap:wrap;gap:16px}
.tiles a{display:grid;place-items:center;width:60px;height:60px;border-radius:3px;background:#3b5898;color:#fff;font-size:24px;transition:background-color .2s}
.tiles a:hover{background:#324c85}

/* cookies a zásady */
.cookies{position:fixed;right:24px;bottom:24px;z-index:60;width:min(425px,calc(100vw - 32px));padding:20px 22px;border-radius:8px;background:var(--blue);color:#fff;font-size:14.5px;line-height:1.55;font-weight:400;box-shadow:0 8px 30px rgba(15,22,42,.35)}
.cookies h2{font-size:17px;font-weight:600;margin-bottom:8px}
.cookies p{margin-bottom:16px}
.cookies-btn{display:flex;justify-content:flex-end;gap:10px}
.cookies button{font-family:inherit;font-size:14px;font-weight:600;line-height:1;padding:10px 20px;border:2px solid #fff;border-radius:30px;background:none;color:#fff;cursor:pointer;transition:background-color .2s,color .2s}
.cookies button:hover,.cookies button.yes{background:#fff;color:var(--blue)}
.cookies button.yes:hover{background:#e9edf5}
.gdpr{width:min(760px,calc(100% - 24px));max-height:calc(100dvh - 40px);padding:0;border:0;border-radius:10px;color:var(--ink);box-shadow:0 24px 70px rgba(10,15,30,.45);overflow:hidden}
.gdpr[open]{display:flex;flex-direction:column}
.gdpr:target:not([open]){display:flex;flex-direction:column;position:fixed;inset:0;margin:auto;height:fit-content}
.gdpr::backdrop{background:rgba(20,26,40,.62)}
.gdpr-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 16px 16px 26px;border-bottom:1px solid var(--line)}
.gdpr-head h2{font-size:20px;font-weight:600;color:var(--head);line-height:1.3}
.gdpr-x{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:none;color:var(--head);font-size:24px;cursor:pointer}
.gdpr-x:hover{background:var(--bg)}
.gdpr-body{overflow:auto;padding:6px 26px 30px;font-size:15px;line-height:1.7;font-weight:400}
.gdpr-body h3{font-size:16px;font-weight:600;color:var(--head);margin:26px 0 6px}
.gdpr-body p+p{margin-top:12px}

/* tablet a mobil */
@media (max-width:991px){
  html{scroll-padding-top:70px}
  .top-in{padding:12px 15px;gap:0}
  .logo img,.top.solid .logo img{width:78px}
  .burger{display:block;position:relative;z-index:70;width:46px;height:46px;margin-left:auto;padding:0;border:0;background:none;cursor:pointer}
  .burger span,.burger span::before,.burger span::after{content:"";position:absolute;left:6px;width:34px;height:3px;border-radius:2px;background:#fff;transition:transform .3s,background-color .3s,top .3s}
  .burger span{top:21px}
  .burger span::before{left:0;top:-10px}
  .burger span::after{left:0;top:10px}
  .burger[aria-expanded=true] span{background:transparent}
  .burger[aria-expanded=true] span::before{top:0;transform:rotate(45deg)}
  .burger[aria-expanded=true] span::after{top:0;transform:rotate(-45deg)}
  .menu{position:fixed;inset:0;z-index:60;flex-direction:column;justify-content:center;gap:34px;background:rgba(14,20,36,.95);visibility:hidden;opacity:0;transition:opacity .35s,visibility 0s .35s}
  .menu.open{visibility:visible;opacity:1;transition:opacity .35s}
  .menu ul{flex-direction:column;align-items:center;gap:24px;margin:0}
  .menu ul a{font-size:26px;font-weight:600}
  .menu .btn{margin:0;font-size:16px}
  .hero{min-height:620px}
  .hero-in{padding:150px 20px 110px}
  .features{padding:90px 0 0}
  .stack{margin:36px 0 0}
  .art-calc{position:static;width:min(92%,540px);margin:34px 0 -40px -22px}
  .extra{padding:80px 0 0}
  .extra-in{width:100%}
  .art-papers{position:static;transform:none;width:min(96%,600px);margin:34px -4% 0 auto}
  .programs{padding:80px 0 56px}
  .contact{padding:80px 15px 90px}
  .foot{background:var(--head)}
  .foot-in{grid-template-columns:1fr}
  .foot-l{padding:70px 15px 40px}
  .foot-r{padding:40px 15px 70px;background:var(--foot-d)}
  .foot-l,.foot-r{max-width:var(--w);margin:0 auto;width:100%}
  .foot-r{max-width:none;padding-inline:max(15px,calc((100vw - var(--w))/2 + 15px))}
  .cookies{right:16px;bottom:16px}
}
@media (max-width:480px){
  .lead p{font-size:17px}
  .stack article{gap:14px}
  .ico{width:30px;height:30px}
  .tel{font-size:26px}
  .totop .i{padding:15px 16px}
  .cookies{left:12px;right:12px;bottom:12px;width:auto;padding:14px 16px;font-size:13px}
  .cookies h2{font-size:15px;margin-bottom:6px}
  .cookies p{margin-bottom:12px}
  .cookies button{padding:8px 16px;font-size:13px}
  .gdpr-head{padding-left:18px}
  .gdpr-body{padding-inline:18px}
}