/* Çölsera · colsera.com */
:root{
  --ink:#0d0f0c; --ink-2:#121611; --panel:#161b15; --line:#283025;
  --gold:#d9a93f; --gold-hi:#f1c766; --green:#5cb848;
  --text:#f4efe2; --muted:#aaa697; --dim:#7d7a6f;
  --paper:#f7f4ec; --paper-2:#efeadf; --ink-on-paper:#1b1f19; --muted-on-paper:#5d5a50;
  --radius:20px; --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:Montserrat,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;background:var(--ink);color:var(--text);
  line-height:1.6;font-size:17px;font-variant-ligatures:none;-webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
a{color:inherit}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.gold{color:var(--gold-hi)}
.kicker{font-size:13px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
h1,h2,h3{line-height:1.12;letter-spacing:-.015em}
h2{font-size:clamp(30px,4.2vw,48px);font-weight:800;margin:14px 0 18px}
h3{font-size:22px;font-weight:800}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--muted);max-width:680px}
section{padding:110px 0}
.section-head{max-width:760px;margin-bottom:56px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:999px;font-weight:700;font-size:16px;
  text-decoration:none;transition:transform .15s ease,background .15s ease,border-color .15s ease;border:2px solid transparent;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-gold:hover{background:var(--gold-hi)}
.btn-ghost{border-color:rgba(244,239,226,.35);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold)}
.btn svg{width:20px;height:20px;flex:none}

/* header */
.top{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .2s ease,border-color .2s ease;border-bottom:1px solid transparent}
.top.scrolled{background:rgba(13,15,12,.92);backdrop-filter:blur(10px);border-color:var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:44px;width:auto}
.brand span{font-weight:800;letter-spacing:.14em;font-size:14px;color:var(--gold)}
.nav{display:flex;align-items:center;gap:26px}
.nav a{text-decoration:none;font-size:14px;font-weight:600;color:var(--muted)}
.nav a:hover{color:var(--text)}
.nav .btn{padding:10px 18px;font-size:14px;color:var(--ink)}
.menu-btn{display:none;background:none;border:0;color:var(--text);width:44px;height:44px;cursor:pointer}
.menu-btn svg{width:28px;height:28px}

/* hero */
.hero{position:relative;min-height:min(100vh,920px);display:flex;align-items:flex-end;padding:140px 0 90px;overflow:hidden}
.hero video,.hero .poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,15,12,.55) 0%,rgba(13,15,12,.25) 35%,rgba(13,15,12,.85) 75%,var(--ink) 100%)}
.hero .wrap{position:relative;z-index:1}
.badge{display:inline-block;background:var(--gold);color:var(--ink);font-weight:800;font-size:12px;letter-spacing:.16em;
  padding:8px 14px;border-radius:8px;text-transform:uppercase}
.hero h1{font-size:clamp(40px,7vw,86px);font-weight:900;margin:22px 0 20px;max-width:900px}
.hero .lead{color:#d8d4c6;font-size:clamp(18px,2vw,22px)}
.hero .ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--ink-2)}
.stat{padding:34px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(28px,3.2vw,40px);font-weight:900;color:var(--gold-hi);line-height:1.05}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--muted);font-weight:600}

/* price compare */
.price{background:var(--ink)}
.price-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center}
.bars{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.bars h3{font-size:19px;margin-bottom:6px}
.bars .sub{font-size:14px;color:var(--muted);margin-bottom:28px}
.bar{margin-bottom:22px}
.bar .row{display:flex;justify-content:space-between;align-items:baseline;font-weight:600;font-size:15px;margin-bottom:8px}
.bar .row b{font-size:20px;font-weight:800}
.bar .track{height:14px;border-radius:0 4px 4px 0;background:#4a4f45}
.bar.hl .row{color:var(--gold-hi)}
.bar.hl .track{background:var(--gold)}
.bars .note{font-size:12.5px;color:var(--dim);margin-top:8px;line-height:1.5}
.checks{list-style:none;margin-top:26px;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;color:var(--text)}
.checks li::before{content:"";flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;
  background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230d0f0c' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat}

/* how it works */
.how{background:var(--paper);color:var(--ink-on-paper)}
.how .lead{color:var(--muted-on-paper)}
.how .kicker{color:#a87914}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.step{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid #e4dfd2}
.step img{aspect-ratio:16/10;object-fit:cover;width:100%}
.step .body{padding:26px 26px 30px}
.step .n{font-size:13px;font-weight:800;letter-spacing:.16em;color:#a87914}
.step h3{margin:8px 0 10px}
.step p{color:var(--muted-on-paper);font-size:15.5px}
.spec{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.spec div{background:var(--paper-2);border-radius:14px;padding:20px}
.spec b{display:block;font-size:22px;font-weight:900}
.spec span{font-size:13.5px;color:var(--muted-on-paper);font-weight:600}
.more{margin-top:30px}
.more a{font-weight:700;color:#8a6210}

/* products */
.products .grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.product{position:relative;border-radius:var(--radius);overflow:hidden;min-height:520px;display:flex;align-items:flex-end;border:1px solid var(--line)}
.product img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.product::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,15,12,0) 25%,rgba(13,15,12,.92) 72%)}
.product .body{position:relative;z-index:1;padding:34px}
.product h3{font-size:30px;margin:8px 0 10px}
.product p{color:#cfcbbd;max-width:460px}
.product .nums{display:flex;gap:30px;margin-top:20px}
.product .nums b{display:block;font-size:30px;font-weight:900;color:var(--gold-hi);line-height:1}
.product .nums span{font-size:13px;color:var(--muted);font-weight:600}

/* compare table */
.compare{background:var(--ink-2)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;min-width:640px}
th,td{padding:18px 22px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;font-size:15.5px}
th{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700;background:var(--panel)}
th.us{color:var(--gold)}
td:first-child{font-weight:700;width:22%}
td.us{color:var(--text)}
td.them{color:var(--muted)}
tr:last-child td{border-bottom:0}

/* packages */
.packages .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pack{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column}
.pack.feature{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold) inset}
.pack .tag{align-self:flex-start;font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--ink);background:var(--gold);padding:6px 10px;border-radius:6px;margin-bottom:16px}
.pack h3{font-size:24px}
.pack .for{color:var(--muted);font-size:15px;margin:8px 0 18px}
.pack ul{list-style:none;display:grid;gap:10px;margin-bottom:26px}
.pack li{padding-left:22px;position:relative;font-size:15.5px}
.pack li::before{content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:50%;background:var(--gold)}
.pack .btn{margin-top:auto;justify-content:center}

/* campaign */
.campaign{padding:0}
.campaign .box{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
  background:linear-gradient(120deg,#2a2210,#1a2416);border:1px solid rgba(217,169,63,.5);border-radius:var(--radius);padding:40px 44px}
.campaign h3{font-size:clamp(22px,2.6vw,30px)}
.campaign p{color:#d8d4c6;margin-top:8px}

/* story */
.story .grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.story blockquote{font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.25;border-left:5px solid var(--gold);padding-left:26px;margin:24px 0}
.story blockquote small{display:block;font-size:15px;font-weight:600;color:var(--muted);margin-top:14px;line-height:1.5}
.timeline{list-style:none;border-left:2px solid var(--line);padding-left:28px;display:grid;gap:22px}
.timeline li{position:relative}
.timeline li::before{content:"";position:absolute;left:-36px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--ink);border:3px solid var(--gold)}
.timeline b{color:var(--gold-hi);font-size:18px;display:block}
.timeline span{color:var(--muted)}

/* faq */
.faq{background:var(--ink-2)}
.faq .list{max-width:860px;display:grid;gap:12px}
details{background:var(--panel);border:1px solid var(--line);border-radius:14px}
summary{cursor:pointer;list-style:none;padding:20px 56px 20px 24px;font-weight:700;font-size:17px;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:26px;color:var(--gold);font-weight:500}
details[open] summary::after{content:"–"}
details p{padding:0 24px 22px;color:var(--muted)}

/* contact */
.contact .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px}
.reqs{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.reqs h3{margin-bottom:14px}
.channels{display:grid;gap:14px;margin-top:30px}
.channel{display:flex;gap:16px;align-items:center;text-decoration:none;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px 20px;transition:border-color .15s ease}
.channel:hover{border-color:var(--gold)}
.channel .ic{width:46px;height:46px;border-radius:12px;background:rgba(217,169,63,.14);display:flex;align-items:center;justify-content:center;flex:none}
.channel .ic svg{width:22px;height:22px;color:var(--gold-hi)}
.channel small{display:block;font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.channel b{font-size:17px}

/* footer */
footer{border-top:1px solid var(--line);padding:48px 0 34px;font-size:14px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
footer img{height:52px;margin-bottom:14px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--text)}
footer .links{display:flex;gap:22px;flex-wrap:wrap;align-items:flex-start}
footer .legal{width:100%;margin-top:26px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}

/* floating whatsapp */
.wa{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.4)}
.wa svg{width:30px;height:30px;color:#fff}

/* sub pages */
.page-head{padding:150px 0 50px;border-bottom:1px solid var(--line);background:var(--ink-2)}
.page-head h1{font-size:clamp(32px,5vw,54px);font-weight:900;margin-top:12px}
.doc{padding:60px 0 100px}
.doc .wrap{max-width:860px}
.doc h2{font-size:26px;margin:46px 0 14px;color:var(--gold-hi)}
.doc h3{font-size:18px;margin:24px 0 8px}
.doc p,.doc li{color:#d6d2c4}
.doc ul{padding-left:22px;display:grid;gap:8px;margin:8px 0}
.doc .note{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 22px;color:var(--muted);font-size:15px}

/* responsive */
@media (max-width:980px){
  .nav{position:fixed;inset:76px 0 auto 0;background:rgba(13,15,12,.98);flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 24px;
    border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav .btn{margin-top:16px;justify-content:center;border-bottom:0;padding:14px}
  .menu-btn{display:block}
  .price-grid,.story .grid,.contact .grid{grid-template-columns:1fr;gap:40px}
  .steps,.packages .grid{grid-template-columns:1fr}
  .products .grid{grid-template-columns:1fr}
  .spec{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width:560px){
  body{font-size:16px}
  section{padding:76px 0}
  .wrap{padding:0 16px}
  .hero{padding:120px 0 60px}
  .hero .ctas .btn{width:100%;justify-content:center}
  .stat{padding:24px 16px}
  .bars{padding:24px}
  .product{min-height:460px}
  .product .body{padding:24px}
  .campaign .box{padding:28px 22px}
  .brand span{display:none}
  .bar .row b{font-size:17px;white-space:nowrap}
  /* comparison table → stacked cards */
  .table-wrap{border:0;overflow:visible}
  table{min-width:0}
  thead{display:none}
  table,tbody,tr,td{display:block;width:100%}
  tr{background:var(--panel);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:16px 18px}
  td{border:0;padding:6px 0;font-size:15px}
  td:first-child{width:auto;color:var(--gold-hi);font-size:16px;padding-bottom:8px}
  td[data-label]::before{content:attr(data-label);display:block;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:2px}
  td.us[data-label]::before{color:var(--gold)}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}