:root{--navy:#1b3a5c;--sea:#2e86c1;--sand:#f3ede2}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-padding-top:120px;scroll-behavior:smooth}
body{font-family:"Source Sans 3",Arial,sans-serif;font-size:17px;line-height:1.6;color:#23303d;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.container{max-width:1160px;margin:0 auto;padding:0 20px}
.sticky{position:sticky;top:0;z-index:30;box-shadow:0 2px 10px rgba(0,0,0,.08)}
.infobar{background:var(--navy);color:#dce7f2;font-size:14px}
.infobar .container{display:flex;gap:28px;padding-top:7px;padding-bottom:7px}
.infobar a{margin-left:auto}
.mainbar{background:#fff}
.mainbar .container{display:flex;align-items:center;gap:30px;height:74px}
.logo img{height:46px;width:auto}
nav{display:flex;gap:22px;margin-left:auto;font-weight:600}
nav a{text-decoration:none;padding:6px 0;border-bottom:2px solid transparent}
nav a:hover{border-color:var(--sea);color:var(--sea)}
.call{background:var(--sea);color:#fff;text-decoration:none;padding:10px 16px;border-radius:6px;font-weight:600;white-space:nowrap}
.burger{display:none}
.hero{position:relative;height:620px}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .container{position:relative;height:100%;display:flex;align-items:center}
.hero-box{background:rgba(255,255,255,.94);padding:40px;max-width:560px;border-radius:8px;border-top:5px solid var(--sea)}
h1,h2,h3{font-family:Merriweather,Georgia,serif;color:var(--navy);line-height:1.25}
h1{font-size:36px;margin-bottom:14px}
.btns{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.btn{display:inline-block;background:var(--sea);color:#fff;font-weight:700;text-decoration:none;padding:13px 24px;border-radius:6px;border:0;font:inherit;font-weight:700;cursor:pointer}
.btn:hover{background:var(--navy)}
.btn.alt{background:#fff;color:var(--navy);border:2px solid var(--navy)}
.usp{background:var(--navy);color:#cfe0f0}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding-top:26px;padding-bottom:26px}
.grid4 b{display:block;color:#fff;font-size:24px;font-family:Merriweather,serif}
.sec{padding:80px 0}
.gray{background:var(--sand)}
.t{text-align:center;font-size:32px;margin-bottom:8px}
.t.left{text-align:left;margin-bottom:16px}
.sub{text-align:center;color:#5c6b78;margin-bottom:40px}
.slider{position:relative;overflow:hidden;border-radius:10px;box-shadow:0 10px 30px rgba(27,58,92,.12)}
.track{display:flex;transition:transform .6s ease}
.slide{min-width:100%;display:grid;grid-template-columns:1.3fr 1fr;background:#fff}
.slide img{width:100%;height:420px;object-fit:cover}
.slide>div{padding:40px}
.slide h3{font-size:26px;margin-bottom:12px}
.slide ul{list-style:none;display:flex;gap:8px;margin:18px 0;flex-wrap:wrap}
.slide li{background:#e8f1f9;color:var(--navy);padding:4px 12px;border-radius:99px;font-size:14px}
.pr{font-size:22px;font-weight:700;color:var(--sea)}
.arr{position:absolute;top:190px;width:46px;height:46px;border-radius:50%;border:0;background:#fff;font-size:26px;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.prev{left:14px}.next{right:14px}
.dots{position:absolute;bottom:16px;right:40px;display:flex;gap:8px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:#c6d4e0;cursor:pointer}
.dots button.on{background:var(--sea)}
.tablewrap{overflow-x:auto;background:#fff;border-radius:10px}
table{width:100%;border-collapse:collapse}
th,td{padding:16px 20px;text-align:left;border-bottom:1px solid #e3e8ee}
th{background:var(--navy);color:#fff;font-weight:600}
td:not(:first-child),th:not(:first-child){text-align:right}
tbody tr:hover{background:#f4f8fb}
.extras{display:flex;gap:16px;margin-top:20px;flex-wrap:wrap}
.extras div{flex:1;background:#fff;padding:16px 20px;border-radius:8px;display:flex;justify-content:space-between;gap:10px;min-width:200px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.two img{border-radius:10px}
.checks{list-style:none;columns:2;margin-top:20px}
.checks li{padding:4px 0 4px 26px;position:relative}
.checks li:before{content:"✓";position:absolute;left:0;color:var(--sea);font-weight:700}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}
blockquote{background:#fff;padding:26px;border-radius:10px;border-left:4px solid var(--sea)}
blockquote span{display:block;color:#e2a72e;margin-bottom:8px}
cite{display:block;margin-top:12px;font-style:normal;font-weight:700;color:var(--navy)}
.narrow{max-width:780px}
details{border-bottom:1px solid #dde3ea;padding:18px 0}
summary{font-weight:700;cursor:pointer;color:var(--navy)}
details p{margin-top:8px;color:#5c6b78}
.blue{background:#e8f1f9}
.blue p{margin-bottom:14px}
#f{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fff;padding:28px;border-radius:10px}
#f label{display:flex;flex-direction:column;font-weight:600;font-size:14px;gap:4px;min-width:0}
#f input,#f select{padding:11px;border:1px solid #c9d3dd;border-radius:6px;font:inherit;width:100%}
.full{grid-column:1/-1}.ok{color:var(--sea);font-weight:600}
footer{background:var(--navy);color:#cfe0f0;padding:24px 0;font-size:14px}
footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.demo{background:rgba(255,255,255,.12);padding:2px 10px;border-radius:99px;font-size:12px}
.fd{opacity:0;transform:translateY(16px);transition:opacity .7s,transform .7s}
.fd.v{opacity:1;transform:none}
@media (max-width:980px){
 .infobar span:nth-child(2){display:none}
 nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px 20px;gap:4px;box-shadow:0 10px 20px rgba(0,0,0,.08)}
 #mn:checked~nav{display:flex}
 .burger{display:block;margin-left:auto;width:40px;height:40px;position:relative;cursor:pointer}
 .burger span,.burger span:before,.burger span:after{position:absolute;left:8px;width:24px;height:2px;background:var(--navy);content:""}
 .burger span{top:19px}.burger span:before{top:-7px;left:0}.burger span:after{top:7px;left:0}
 .mainbar .container{position:relative;gap:14px}
 .slide{grid-template-columns:1fr}.slide img{height:260px}.arr{top:107px}
 .two,.grid3{grid-template-columns:1fr}.grid4{grid-template-columns:1fr 1fr;gap:16px}
}
@media (max-width:600px){
 .infobar{display:none}.call b{display:none}.logo img{height:36px}
 .hero{height:auto}.hero>img{position:relative;height:260px}.hero .container{padding:0}.hero-box{border-radius:0;padding:26px 20px}
 h1{font-size:27px}.slide>div{padding:24px}.dots{right:20px}
 #f{grid-template-columns:1fr}.checks{columns:1}th,td{padding:12px 10px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){.fd{opacity:1;transform:none;transition:none}.track{transition:none}html{scroll-behavior:auto}}
/* animowane morze */
.waves{position:absolute;left:0;right:0;bottom:-1px;height:110px;overflow:hidden;pointer-events:none;z-index:1}
.waves svg{width:200%;height:100%;display:block}
.waves path{animation:wv 14s linear infinite}
.waves .w1{fill:rgba(46,134,193,.45);animation-duration:18s}.waves .w2{fill:rgba(255,255,255,.35);animation-duration:11s;animation-direction:reverse}.waves .w3{fill:var(--navy);animation-duration:8s}
@keyframes wv{to{transform:translateX(-50%)}}
.waves.foot{position:relative;bottom:0;margin-top:-1px;height:80px;background:transparent}
.waves.foot{background:#e8f1f9}
@media(max-width:860px){.waves{height:60px}.hero .waves{top:200px;bottom:auto}}
@media(prefers-reduced-motion:reduce){.waves path{animation:none}}
/* v4: fale na morzu – grzbiety fal z pianą płyną do brzegu */
.sea{position:absolute;inset:0;pointer-events:none;overflow:hidden;-webkit-mask:url(img/sea-mask.png) center/cover no-repeat;mask:url(img/sea-mask.png) center/cover no-repeat}
.sea .cr{position:absolute;left:-10%;right:-10%;height:1.6%;top:50%;opacity:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 10' preserveAspectRatio='none'%3E%3Cg fill='none' stroke='white' stroke-linecap='round'%3E%3Cpath d='M5 6 q14 -3 30 0' stroke-width='1.6' opacity='.85'/%3E%3Cpath d='M70 7 q22 -4 48 -1' stroke-width='1.2' opacity='.6'/%3E%3Cpath d='M150 6 q10 -2 20 0' stroke-width='1.8' opacity='.9'/%3E%3Cpath d='M205 7 q30 -4 64 0' stroke-width='1.1' opacity='.55'/%3E%3Cpath d='M300 6 q12 -3 26 0' stroke-width='1.5' opacity='.8'/%3E%3Cpath d='M350 7 q18 -3 40 0' stroke-width='1' opacity='.5'/%3E%3C/g%3E%3C/svg%3E") 0 0/420px 100% repeat-x;animation:roll 10s linear infinite,drift 30s linear infinite;filter:blur(.4px)}
.sea .c1{animation-delay:-1.7s,-4s;background-size:380px 100%}.sea .c2{animation-delay:-3.3s,-9s;background-size:360px 100%}.sea .c3{animation-delay:-5s,-2s;background-size:460px 100%}.sea .c4{animation-delay:-6.7s,-14s;background-size:300px 100%}.sea .c5{animation-delay:-8.3s,-7s;background-size:340px 100%}
@keyframes roll{0%{top:50.5%;opacity:0;transform:scale(.7,.6)}25%{opacity:.45}75%{opacity:.7}100%{top:63%;opacity:0;transform:scale(1.15,1.4)}}
@keyframes drift{to{background-position-x:-640px}}
.sea .foam{position:absolute;inset:0;-webkit-mask:url(img/foam-mask.png) center/cover no-repeat;mask:url(img/foam-mask.png) center/cover no-repeat;background:linear-gradient(180deg,transparent 40%,rgba(255,255,255,.6) 58%,transparent 70%) 0 0/100% 100%;animation:surf 4.5s ease-in-out infinite;mix-blend-mode:screen}
@keyframes surf{0%,100%{transform:translateY(-1.2%);opacity:.25}50%{transform:translateY(.8%);opacity:.8}}
@media(max-width:860px){.sea{inset:0 0 auto 0;height:260px}}
@media(prefers-reduced-motion:reduce){.sea{display:none}}