/* 7k6326.casino — 7K Casino / 7К Казино. Концепция «Речной шлюз»: створки, камеры, уровень воды */

:root {
  --bg: #0b1116;
  --sf: #121a20;
  --sf2: #17222a;
  --ln: #1e2830;
  --ln2: #2b3944;
  --ac: #f0c93c;
  --ac-d: #d4ae24;
  --se: #4a8f9e;
  --se-d: #3a7382;
  --tx: #e6eef3;
  --mu: #8b9aa5;
  --chf: 16px;
  --pad: clamp(18px, 4vw, 60px);
}

* { box-sizing: border-box }
html { scroll-behavior: smooth }

body {
  margin: 0;
  font: 16px/1.66 "PT Sans", ui-sans-serif, -apple-system, "Segoe UI", system-ui, Arial, sans-serif;
  color: var(--tx);
  background:
    linear-gradient(180deg, rgba(74, 143, 158, .10) 0%, transparent 620px),
    radial-gradient(760px 420px at 92% 4%, rgba(240, 201, 60, .07) 0%, transparent 70%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4,
.mantle-logo__t, .mantle-kpi__n, .mantle-dep__n, .mantle-dep__p,
.mantle-final__h, .mantle-foot__name, .mantle-foot__h,
.mantle-tab th, .mantle-faq summary {
  font-family: "Exo 2", "PT Sans", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -.01em;
}

img { max-width: 100%; display: block; height: auto }
svg { max-width: 100% }
a { color: var(--ac); text-decoration: none }
a:hover { text-decoration: underline }
p { margin: 0 0 12px }

.mantle-skip {
  position: absolute; top: -70px; left: 12px; z-index: 120;
  padding: 10px 16px; background: var(--ac); color: #0b1116; font-weight: 700;
}
.mantle-skip:focus { top: 12px }

/* ===== HEADER ===== */
.mantle-bar {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; gap: 18px;
  padding: 10px var(--pad);
  background: rgba(11, 17, 22, .92);
  border-bottom: 1px solid var(--ln);
  backdrop-filter: blur(10px);
}
.mantle-logo { display: flex; align-items: center; gap: 11px; color: var(--tx) }
.mantle-logo:hover { text-decoration: none }
.mantle-logo__svg { width: 34px; height: 34px; flex: none }
.mantle-logo__t { font-size: 17px; line-height: 1.05 }
.mantle-logo__sub {
  display: block; margin-top: 5px; font-family: "PT Sans", sans-serif;
  font-size: 10px; font-weight: 400; letter-spacing: 1.7px;
  color: var(--mu); text-transform: uppercase;
}
.mantle-nav { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap }
.mantle-nav a {
  padding: 7px 11px; font-size: 14px; color: var(--mu);
  border-bottom: 2px solid transparent;
}
.mantle-nav a:hover { color: var(--tx); border-bottom-color: var(--se); text-decoration: none }

/* ===== CTA ===== */
.mantle-cta {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: "Exo 2", sans-serif; font-weight: 600; text-align: center;
  border: 1px solid transparent; border-radius: 3px;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.mantle-cta:hover { text-decoration: none; transform: translateY(-1px) }
.mantle-cta--sm { padding: 9px 16px; font-size: 14px; background: var(--ac); color: #0b1116 }
.mantle-cta--sm:hover { background: var(--ac-d) }
.mantle-cta--lg { padding: 14px 28px; font-size: 16px }
.mantle-cta--hot {
  background: var(--ac); color: #0b1116;
  box-shadow: inset 0 -3px 0 rgba(11, 17, 22, .22);
}
.mantle-cta--hot:hover { box-shadow: 0 12px 30px -16px rgba(240, 201, 60, .95) }
.mantle-cta--ghost { background: transparent; color: var(--tx); border-color: var(--ln2) }
.mantle-cta--ghost:hover { border-color: var(--se); color: var(--se) }
.mantle-cta--card {
  margin-top: auto; padding: 9px 14px; font-size: 13px;
  background: transparent; color: var(--se); border-color: var(--se-d);
}
.mantle-cta--card:hover { background: var(--se); color: #0b1116 }

/* ===== SECTION SHELL ===== */
.mantle-sec { padding: clamp(42px, 5.5vw, 78px) var(--pad); max-width: 1230px; margin: 0 auto }
.mantle-sec + .mantle-sec { border-top: 1px solid var(--ln) }
.mantle-over {
  margin: 0 0 10px; font-size: 11px; font-weight: 700; letter-spacing: 3.2px;
  text-transform: uppercase; color: var(--se);
}
main h2 { margin: 0 0 16px; font-size: clamp(22px, 2.9vw, 32px); line-height: 1.2 }
main h3 { margin: 0 0 9px; font-size: 17px; line-height: 1.3 }
.mantle-lead { margin: 0 0 26px; max-width: 94ch; color: var(--mu) }
.mantle-note { margin: 14px 0 0; max-width: 100ch; color: var(--mu); font-size: 15px }

/* ===== HERO ===== */
.mantle-hero {
  display: grid; gap: clamp(22px, 3vw, 46px);
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  align-items: center;
  padding: clamp(30px, 4.5vw, 64px) var(--pad);
  max-width: 1230px; margin: 0 auto;
  border-bottom: 1px solid var(--ln);
}
.mantle-hero__col { min-width: 0 }
.mantle-chip {
  display: inline-block; margin: 0 0 16px; padding: 6px 13px;
  font-size: 12px; letter-spacing: .6px; color: var(--se);
  border: 1px solid var(--ln2);
}
.mantle-hero h1 { margin: 0 0 16px; font-size: clamp(26px, 3.7vw, 40px); line-height: 1.14 }
.mantle-hero__sub { margin: 0 0 22px; color: var(--mu); max-width: 68ch }
.mantle-hero__art {
  min-width: 0; padding: 14px; background: var(--sf);
  border: 1px solid var(--ln);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--chf)), calc(100% - var(--chf)) 100%, 0 100%);
}
.mantle-hero__cap { margin: 10px 2px 0; font-size: 12px; color: var(--mu); letter-spacing: .4px }

/* ===== KPI ===== */
.mantle-kpi { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 0 0 22px }
.mantle-kpi__c {
  padding: 13px 14px; font-size: 13px; color: var(--mu);
  background: var(--sf); border-left: 3px solid var(--se);
}
.mantle-kpi__n { display: block; margin-bottom: 4px; font-size: 22px; color: var(--ac) }
.mantle-row { display: flex; gap: 12px; flex-wrap: wrap }

/* ===== GRID OF BOXES ===== */
.mantle-grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px }
.mantle-box {
  padding: 20px; background: var(--sf); border: 1px solid var(--ln);
  border-top: 3px solid var(--se);
}
.mantle-box p { margin: 0; color: var(--mu); font-size: 15px }

/* ===== WELCOME ===== */
.mantle-dep {
  padding: 20px; background: var(--sf2); border: 1px solid var(--ln);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--chf)), calc(100% - var(--chf)) 100%, 0 100%);
}
.mantle-dep__n { margin: 0 0 6px; font-size: 11px; letter-spacing: 2.6px; text-transform: uppercase; color: var(--se) }
.mantle-dep__p { margin: 0 0 10px; font-size: 21px; color: var(--ac) }
.mantle-dep p:last-child { margin: 0; color: var(--mu); font-size: 15px }
#pack .mantle-cta--lg { margin-top: 22px }

/* ===== CATALOGUE ===== */
.mantle-cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px }
.mantle-card {
  display: flex; flex-direction: column; padding: 17px;
  background: var(--sf); border: 1px solid var(--ln);
  border-bottom: 3px solid var(--ln2);
}
.mantle-card:hover { border-bottom-color: var(--ac) }
.mantle-card__m { margin: 0 0 9px; font-size: 12px; color: var(--se); letter-spacing: .2px }
.mantle-card p:not(.mantle-card__m) { color: var(--mu); font-size: 14px }
.mantle-tags { margin: 20px 0 0; font-size: 13px; color: var(--mu); line-height: 1.9 }
.mantle-tags__k {
  display: inline-block; margin-right: 9px; padding: 3px 9px;
  font-family: "Exo 2", sans-serif; font-size: 11px; letter-spacing: 1.6px;
  text-transform: uppercase; color: #0b1116; background: var(--se);
}

/* ===== LIVE ===== */
.mantle-live { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px }
.mantle-lv {
  padding: 18px; background: var(--sf); border: 1px solid var(--ln);
  border-left: 3px solid var(--ac);
}
.mantle-lv__m { margin: 0 0 8px; font-size: 12px; color: var(--se) }
.mantle-lv p:last-child { margin: 0; color: var(--mu); font-size: 14px }

/* ===== TABLES ===== */
.mantle-tw { overflow-x: auto; border: 1px solid var(--ln) }
.mantle-tab { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 15px }
.mantle-tab th {
  padding: 12px 14px; text-align: left; font-size: 12px; letter-spacing: 1.4px;
  text-transform: uppercase; color: var(--se); background: var(--sf2);
  border-bottom: 1px solid var(--ln);
}
.mantle-tab td { padding: 12px 14px; border-bottom: 1px solid var(--ln); color: var(--mu) }
.mantle-tab tbody tr:nth-child(odd) { background: rgba(23, 34, 42, .55) }
.mantle-tab tbody tr:last-child td { border-bottom: 0 }
.mantle-tab td:first-child { color: var(--tx); font-weight: 700 }

/* ===== REVIEWS ===== */
.mantle-q {
  padding: 19px; background: var(--sf); border: 1px solid var(--ln);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--chf)), calc(100% - var(--chf)) 100%, 0 100%);
}
.mantle-q__st { margin: 0 0 10px; font-size: 14px; color: var(--ac); letter-spacing: 2px }
.mantle-q__off { color: var(--ln2) }
.mantle-q p { color: var(--mu); font-size: 15px }
.mantle-q__m {
  display: flex; align-items: center; gap: 9px; margin: 12px 0 0;
  font-size: 13px; color: var(--tx);
}
.mantle-q__a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; flex: none; font-family: "Exo 2", sans-serif;
  font-weight: 700; color: #0b1116; background: var(--se);
}

/* ===== FAQ ===== */
.mantle-faq { display: grid; gap: 9px }
.mantle-faq details { background: var(--sf); border: 1px solid var(--ln); border-left: 3px solid var(--se-d) }
.mantle-faq summary { padding: 14px 18px; cursor: pointer; font-size: 15px; color: var(--tx) }
.mantle-faq summary:hover { color: var(--ac) }
.mantle-faq details[open] { border-left-color: var(--ac) }
.mantle-faq details p { margin: 0; padding: 0 18px 15px; color: var(--mu); font-size: 15px }

/* ===== PRE-FOOTER ===== */
.mantle-final {
  max-width: 1230px; margin: 0 auto;
  padding: clamp(40px, 5vw, 70px) var(--pad);
  border-top: 1px solid var(--ln); text-align: center;
  background: linear-gradient(180deg, rgba(74, 143, 158, .09), transparent);
}
.mantle-final__h { margin: 0 0 10px; font-size: clamp(23px, 3vw, 33px); line-height: 1.2 }
.mantle-final__s { margin: 0 auto 22px; max-width: 62ch; color: var(--mu) }

/* ===== FOOTER ===== */
.mantle-foot { border-top: 1px solid var(--ln); background: var(--sf) }
.mantle-foot__top {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.7fr); gap: 30px;
  max-width: 1230px; margin: 0 auto; padding: clamp(30px, 4vw, 52px) var(--pad);
}
.mantle-foot__brand .mantle-logo__svg { width: 38px; height: 38px; margin-bottom: 12px }
.mantle-foot__name { margin: 0 0 10px; font-size: 16px }
.mantle-foot__brand p { color: var(--mu); font-size: 13.5px; max-width: 54ch }
.mantle-foot__cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px }
.mantle-foot__h {
  margin: 0 0 10px; font-size: 11px; letter-spacing: 2.4px;
  text-transform: uppercase; color: var(--se);
}
.mantle-foot__cols a { display: block; padding: 4px 0; font-size: 14px; color: var(--mu) }
.mantle-foot__cols a:hover { color: var(--tx) }
.mantle-foot__bottom {
  max-width: 1230px; margin: 0 auto; padding: 16px var(--pad) 30px;
  border-top: 1px solid var(--ln); font-size: 13px; color: var(--mu);
}

/* ===== ADAPTIVE ===== */
@media (max-width: 1080px) {
  .mantle-cards { grid-template-columns: repeat(3, minmax(0, 1fr)) }
  .mantle-hero { grid-template-columns: minmax(0, 1fr); }
  .mantle-nav a { padding: 7px 8px; font-size: 13px }
}

@media (max-width: 860px) {
  .mantle-kpi { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .mantle-grid3 { grid-template-columns: minmax(0, 1fr) }
  .mantle-live { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .mantle-cards { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .mantle-foot__top { grid-template-columns: minmax(0, 1fr) }
  .mantle-bar { flex-wrap: wrap; gap: 10px }
  .mantle-nav { margin-left: 0; order: 3; width: 100% }
  .mantle-cta--sm { margin-left: auto }
}

@media (max-width: 620px) {
  .mantle-cards { grid-template-columns: minmax(0, 1fr) }
  .mantle-live { grid-template-columns: minmax(0, 1fr) }
  .mantle-kpi { grid-template-columns: minmax(0, 1fr) }
  .mantle-foot__cols { grid-template-columns: minmax(0, 1fr) }
  .mantle-row { flex-direction: column; align-items: stretch }
  .mantle-hero h1 { font-size: 25px }
  .mantle-final__h { font-size: 22px }
}