/* clubvulkan547.cyou — Вулкан / Vulkan · концепт «Гайот» (подводный плосковершинный вулкан). Палитра: абиссаль-синь над бездной */

:root {
  --bg: #04101a;
  --bg-2: #07192a;
  --bg-3: #0b2740;
  --line: #143247;
  --line-2: #1e445f;
  --txt: #e6f3fb;
  --txt-d: #9bc0d4;
  --txt-dd: #5f8398;
  --acc: #0e8fc4;
  --acc-2: #79d2f0;
  --acc-2-d: #4fb8e0;
  --hot: #ff5c7a;
  --good: #7be8b0;
  --r: 13px;
  --r-s: 8px;
}

* { box-sizing: border-box }
html { scroll-behavior: smooth }
body {
  margin: 0;
  font: 16px/1.64 "Mulish", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Arial, sans-serif;
  color: var(--txt);
  background:
    radial-gradient(1040px 600px at 90% -12%, rgba(14, 143, 196, .16) 0%, transparent 60%),
    radial-gradient(860px 600px at -12% 64%, rgba(121, 210, 240, .07) 0%, transparent 62%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto }
a { color: var(--acc-2); text-decoration: none }
a:hover { text-decoration: underline }

/* Заголовочный шрифт Jura для всех уровней заголовков и врезок */
h1, h2, h3, h4,
.logo__t, .abyssstat__num, .kpi__num, .cta,
.coralcard__cover, .pelagicbox__cover, .seamount__chip,
.atollbox__pct, .atollbox__step, .ovrline,
.sonarcup__kpi span, .benthrow__name, .tiderailbox__r, .tiderail__t,
.soundbox__num {
  font-family: "Jura", "Mulish", system-ui, sans-serif;
}

.skip {
  position: absolute; top: -44px; left: 8px;
  padding: 8px 12px; background: var(--acc-2); color: #04141d;
  border-radius: 6px; z-index: 100; font-weight: 700;
}
.skip:focus { top: 8px }

/* ===== ВЕРХНЯЯ ПАНЕЛЬ (guyotbar) ===== */
.guyotbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 16, 26, .84);
  backdrop-filter: blur(11px);
  position: sticky; top: 0; z-index: 50;
}
.logo { display: flex; align-items: center; gap: 11px; color: var(--txt) }
.logo:hover { text-decoration: none }
.logo__svg {
  width: 31px; height: 31px; flex: none;
  filter: drop-shadow(0 0 11px rgba(14, 143, 196, .6));
}
.logo__t {
  font-weight: 700; line-height: 1; letter-spacing: .2px;
}
.logo__sub {
  display: block; font-size: 10px; color: var(--txt-d);
  letter-spacing: 2.4px; font-weight: 600; margin-top: 4px;
  text-transform: uppercase; font-family: "Mulish", system-ui, sans-serif;
}
.nav { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap }
.nav a {
  color: var(--txt-d); font-size: 14px; padding: 4px 0;
  border-bottom: 1px solid transparent; transition: color .15s, border-color .15s;
}
.nav a:hover { color: var(--acc-2); border-bottom-color: var(--acc-2); text-decoration: none }

/* ===== CTA ===== */
.cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px; border-radius: 8px;
  font-weight: 600; font-size: 14px;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform .15s, box-shadow .2s, background .2s;
  cursor: pointer; letter-spacing: .2px;
}
.cta:hover { text-decoration: none; transform: translateY(-1px) }
.cta--small { background: var(--bg-3); color: var(--txt); border-color: var(--line) }
.cta--small:hover { background: var(--bg-2); border-color: var(--acc-2) }
.cta--big { padding: 15px 28px; font-size: 15px; border-radius: 10px }
.cta--hot {
  background: linear-gradient(118deg, #1ea2d6 0%, #0a6f9e 100%);
  color: #f0fbff; border: 0;
  box-shadow: 0 12px 30px -10px rgba(30, 162, 214, .7);
  font-weight: 700;
}
.cta--hot:hover { box-shadow: 0 16px 38px -8px rgba(30, 162, 214, .9) }
.cta--ghost { background: transparent; color: var(--txt); border-color: var(--line-2) }
.cta--ghost:hover { border-color: var(--acc-2); color: var(--acc-2) }

/* ===== СВОДНЫЙ ТИКЕР (abyssstat) ===== */
.abyssstat {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 0; padding: 10px 22px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(14, 143, 196, .05), rgba(121, 210, 240, .03));
  font-size: 13px;
}
.abyssstat__cell {
  display: flex; flex-direction: column; gap: 2px;
  padding: 6px 14px;
  border-right: 1px solid var(--line);
  align-items: flex-start;
}
.abyssstat__cell:last-child { border-right: 0 }
.abyssstat__num {
  font-weight: 700; font-size: 15px; color: var(--acc-2);
  letter-spacing: .1px;
}
.abyssstat__lbl { font-size: 11px; color: var(--txt-d); letter-spacing: .6px; text-transform: uppercase }

/* ===== HERO (seamount) ===== */
.seamount {
  display: grid; grid-template-columns: 1.18fr 1fr; gap: 36px;
  padding: 48px 22px 32px;
  max-width: 1240px; margin: 0 auto;
  align-items: center;
}
.seamount__chip {
  display: inline-block;
  font-size: 11px; letter-spacing: 1.4px; color: var(--acc-2);
  background: rgba(14, 143, 196, .1);
  border: 1px solid rgba(14, 143, 196, .3);
  padding: 6px 12px; border-radius: 4px;
  margin: 0 0 18px;
  text-transform: uppercase; font-weight: 700;
}
h1 {
  font-size: clamp(30px, 4.4vw, 49px); line-height: 1.08;
  margin: 0 0 18px; letter-spacing: .2px; font-weight: 700;
}
.acc { color: var(--acc-2) }
.seamount__sub {
  color: var(--txt-d); font-size: 16px; margin: 0 0 14px; line-height: 1.66;
}
.seamount__btns { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 28px }
.seamount__pic { margin: 0 }
.seamount__pic-svg {
  display: block; width: 100%; height: auto;
  border-radius: var(--r); border: 1px solid var(--line);
  background:
    radial-gradient(440px 320px at 30% 26%, rgba(14, 143, 196, .26), transparent 62%),
    radial-gradient(360px 300px at 80% 80%, rgba(121, 210, 240, .16), transparent 66%),
    linear-gradient(150deg, #061a2a 0%, #0b2740 100%);
  aspect-ratio: 16 / 11;
  box-shadow: 0 24px 64px -22px rgba(14, 143, 196, .46);
}
.seamount__pic figcaption {
  margin-top: 12px; font-size: 12px; color: var(--txt-dd);
  font-style: italic; text-align: right;
}

/* KPI блок */
.kpi {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  padding: 18px 0 0; border-top: 1px solid var(--line);
}
.kpi__item { display: flex; flex-direction: column; gap: 2px }
.kpi__num {
  font-size: 26px; font-weight: 700;
  color: var(--acc-2); letter-spacing: .2px;
}
.kpi__lbl { font-size: 11px; color: var(--txt-d); text-transform: uppercase; letter-spacing: 1.2px }

/* ===== ОБЩЕЕ ДЛЯ СЕКЦИЙ ===== */
section {
  max-width: 1240px; margin: 0 auto;
  padding: 56px 22px;
}
section.seamount, section.atoll { padding-top: 36px }
.ovrline {
  display: inline-block;
  font-size: 11px; letter-spacing: 2.6px; text-transform: uppercase;
  color: var(--acc); font-weight: 700;
  margin: 0 0 10px;
}
h2 {
  font-size: clamp(24px, 3.2vw, 36px); line-height: 1.2;
  margin: 0 0 16px; letter-spacing: .1px; font-weight: 700;
}
h3 {
  font-size: clamp(17px, 2vw, 21px); line-height: 1.34;
  margin: 26px 0 10px; color: var(--acc-2); font-weight: 600; letter-spacing: .2px;
}
p { margin: 0 0 14px; color: var(--txt) }
.lead { color: var(--txt-d); font-size: 16px; margin-bottom: 24px; max-width: 790px }

/* ===== WELCOME (atoll) ===== */
.atoll {
  background:
    radial-gradient(720px 360px at 80% 26%, rgba(121, 210, 240, .08) 0%, transparent 70%),
    rgba(7, 25, 42, .58);
  border: 1px solid var(--line);
  border-radius: var(--r);
  margin: 32px 22px;
  max-width: none;
}
.atoll__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  margin: 22px 0 24px;
}
.atollbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 20px;
  position: relative; overflow: hidden;
  transition: border-color .2s, transform .15s;
}
.atollbox:hover { border-color: var(--acc-2); transform: translateY(-2px) }
.atollbox::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(140deg, rgba(14, 143, 196, .08), transparent 60%);
  pointer-events: none;
}
.atollbox__step {
  font-size: 11px; color: var(--acc); font-weight: 700;
  letter-spacing: 2px; margin-bottom: 8px; text-transform: uppercase;
}
.atollbox__pct {
  font-size: 30px; font-weight: 700; line-height: 1;
  color: var(--acc-2); letter-spacing: .2px;
  margin-bottom: 8px;
}
.atollbox__title { font-weight: 700; font-size: 15px; margin-bottom: 6px }
.atollbox__sub { font-size: 13px; color: var(--txt-d); line-height: 1.52 }

/* ===== ТРИ ШАГА (sounding) ===== */
.sounding__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 22px;
}
.soundbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px;
  position: relative;
}
.soundbox__num {
  position: absolute; top: 14px; right: 22px;
  font-size: 56px; font-weight: 700; line-height: 1;
  color: var(--bg-3);
}
.soundbox__head {
  font-size: 18px; font-weight: 700; margin-bottom: 12px;
  color: var(--acc-2);
}
.soundbox p { color: var(--txt-d); font-size: 14px; margin: 0 }

/* ===== СЛОТ-СЕТКА (reefgrid) ===== */
.reefgrid__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px; margin: 24px 0;
}
.coralcard {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  transition: transform .15s, border-color .2s, box-shadow .25s;
  display: flex; flex-direction: column;
}
.coralcard:hover {
  transform: translateY(-3px);
  border-color: var(--acc-2);
  box-shadow: 0 18px 36px -14px rgba(14, 143, 196, .46);
}
.coralcard__cover {
  width: 100%; aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 22px; color: rgba(230, 243, 251, .92);
  text-align: center; padding: 14px;
  letter-spacing: .2px; line-height: 1.16;
  position: relative; overflow: hidden;
}
.coralcard__cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, transparent 40%, rgba(0,0,0,.4) 100%);
  pointer-events: none;
}
.cv-1 { background: linear-gradient(135deg, #06283d 0%, #0e8fc4 100%) }
.cv-2 { background: linear-gradient(135deg, #052b3a 0%, #79d2f0 100%); color: #04141d }
.cv-3 { background: linear-gradient(135deg, #0a1f3a 0%, #3d7fd6 100%) }
.cv-4 { background: linear-gradient(135deg, #07303a 0%, #36c8c0 100%); color: #04141d }
.cv-5 { background: linear-gradient(135deg, #062a36 0%, #2ab0c8 100%) }
.cv-6 { background: linear-gradient(135deg, #08283a 0%, #4dd6ff 100%) }
.cv-7 { background: linear-gradient(135deg, #0c2440 0%, #5c9fff 100%) }
.cv-8 { background: linear-gradient(135deg, #06283a 0%, #1ea8e0 100%) }
.cv-9 { background: linear-gradient(135deg, #082236 0%, #58c4e8 100%) }
.cv-10 { background: linear-gradient(135deg, #0a2438 0%, #79d2f0 100%); color: #04141d }
.cv-11 { background: linear-gradient(135deg, #06303a 0%, #2ad4d4 100%) }
.cv-12 { background: linear-gradient(135deg, #0b1f3a 0%, #6c9fe0 100%) }

.coralcard h3 { font-size: 15px; margin: 12px 14px 4px; color: var(--txt); font-weight: 600 }
.coralcard p { font-size: 12px; color: var(--txt-d); margin: 0 14px 12px; line-height: 1.42 }
.coralcard__btn {
  display: block; padding: 10px;
  margin: auto 12px 12px;
  background: var(--bg-3); color: var(--txt);
  text-align: center; border-radius: 6px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--line); transition: all .15s;
}
.coralcard__btn:hover { background: var(--acc); border-color: var(--acc); color: #04141d; text-decoration: none }

.benthos { margin: 22px 0 0 }
.benthos__title { font-size: 12px; color: var(--acc); margin-bottom: 10px; letter-spacing: 1.4px; text-transform: uppercase; font-weight: 700 }
.benthos__list { display: flex; flex-wrap: wrap; gap: 8px }
.benthos__list span {
  padding: 6px 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 12px; color: var(--txt-d);
}

/* ===== ЛОЯЛЬНОСТЬ (trench) ===== */
.trench__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
  margin-top: 22px;
}
.trenchbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 24px;
  transition: border-color .2s;
}
.trenchbox:hover { border-color: var(--acc) }
.trenchbox__h { font-weight: 700; font-size: 17px; margin-bottom: 10px; color: var(--acc) }
.trenchbox p { color: var(--txt-d); font-size: 14px; margin: 0; line-height: 1.62 }

/* VIP-ступени гайота — стек уступов от бездны к плоской вершине */
.benthrow {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 6px; margin-top: 14px;
}
.benthrow__step {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 8px;
  text-align: center;
  position: relative;
}
.benthrow__step:nth-child(1) { transform: translateY(0) }
.benthrow__step:nth-child(2) { transform: translateY(-5px) }
.benthrow__step:nth-child(3) { transform: translateY(-12px) }
.benthrow__step:nth-child(4) { transform: translateY(-20px); border-color: var(--acc); background: var(--bg-2) }
.benthrow__step:nth-child(5) { transform: translateY(-28px); border-color: var(--acc); background: var(--bg-2) }
.benthrow__step:nth-child(6) { transform: translateY(-37px); border-color: var(--acc-2); background: linear-gradient(135deg, var(--bg-2), rgba(121, 210, 240, .1)) }
.benthrow__name {
  font-size: 12px; font-weight: 700; color: var(--txt);
  display: block; line-height: 1; margin-bottom: 5px;
}
.benthrow__cb { font-size: 11px; color: var(--txt-d) }
.benthrow__step:nth-child(6) .benthrow__name { color: var(--acc-2) }

/* ===== ТУРНИР (sonarcup) ===== */
.sonarcup {
  background:
    radial-gradient(640px 360px at 50% 50%, rgba(14, 143, 196, .12) 0%, transparent 70%),
    var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  margin: 32px 22px; max-width: none;
  text-align: center;
}
.sonarcup__btns { margin: 22px 0 28px }
.sonarcup__kpi {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
  margin-top: 22px;
}
.sonarcup__kpi > div {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 18px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  text-align: center;
}
.sonarcup__kpi span {
  font-size: 22px; font-weight: 700; color: var(--acc-2);
  margin-bottom: 4px; letter-spacing: .2px;
}
.sonarcup__kpi em { font-size: 14px; font-weight: 700; color: var(--txt); font-style: normal }
.sonarcup__kpi i { font-size: 12px; color: var(--txt-d); font-style: normal; line-height: 1.42 }

/* ===== LIVE-ГАЛЕРЕЯ (pelagic) ===== */
.pelagic__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px; margin-top: 22px;
}
.pelagicbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  position: relative;
  transition: transform .15s, border-color .2s, box-shadow .25s;
}
.pelagicbox:hover {
  transform: translateY(-3px);
  border-color: var(--hot);
  box-shadow: 0 18px 36px -14px rgba(255, 92, 122, .42);
}
.pelagicbox__cover {
  width: 100%; aspect-ratio: 16 / 9;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; color: rgba(230, 243, 251, .94);
  padding: 12px; text-align: center; letter-spacing: .1px;
  position: relative; overflow: hidden;
}
.lv-1 { background: linear-gradient(135deg, #06223d 0%, #4dabff 100%) }
.lv-2 { background: linear-gradient(135deg, #0a1f3a 0%, #0e8fc4 100%) }
.lv-3 { background: linear-gradient(135deg, #06303a 0%, #2ad4c8 100%) }
.lv-4 { background: linear-gradient(135deg, #07283a 0%, #79d2f0 100%); color: #04141d }
.lv-5 { background: linear-gradient(135deg, #0b1f3a 0%, #5c8fe0 100%) }
.lv-6 { background: linear-gradient(135deg, #052b3a 0%, #36c0d0 100%) }

.pelagicbox__b { padding: 14px 16px 16px; position: relative }
.pelagicbox__t { font-weight: 700; font-size: 16px; margin-bottom: 4px }
.pelagicbox__s { font-size: 12px; color: var(--txt-d); margin-bottom: 10px }
.pelagicbox__m { font-size: 13px; color: var(--acc-2); font-weight: 600; margin-bottom: 4px }
.pelagicbox__p { font-size: 12px; color: var(--txt-dd) }
.pelagicbox__live {
  position: absolute; top: 12px; right: 16px;
  background: var(--hot); color: #fff;
  padding: 3px 10px; border-radius: 4px;
  font-size: 10px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase;
}

/* ===== ОБЗОР БРЕНДА (summitarc) ===== */
.summitarc h3 {
  border-left: 3px solid var(--acc);
  padding-left: 14px; margin-top: 30px;
}
.summitarc p { color: var(--txt); line-height: 1.72 }
.badges {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line);
}
.bdg {
  padding: 7px 13px;
  background: var(--bg-2);
  border: 1px solid var(--acc);
  border-radius: 4px;
  font-size: 12px; color: var(--txt);
  letter-spacing: .4px;
}

/* ===== ОТЗЫВЫ (shelfr) ===== */
.shelfr__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 22px;
}
.shelfbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.shelfbox__stars { color: var(--acc-2); font-size: 16px; letter-spacing: 4px }
.shelfbox__stars--four .star-off { color: var(--line-2); }
.shelfbox__q { font-size: 14px; line-height: 1.62; color: var(--txt); margin: 0 }
.shelfbox__meta {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--txt-d);
  border-top: 1px solid var(--line); padding-top: 14px;
}
.shelfbox__a {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--acc), var(--acc-2));
  border-radius: 50%; color: #04141d; font-weight: 700; font-size: 14px;
  flex: none;
}

/* ===== КАССА (tiderail) ===== */
.tiderail__grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
  margin: 22px 0 22px;
}
.tiderailbox {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  padding: 18px 14px;
  text-align: center;
  display: flex; flex-direction: column; gap: 4px;
}
.tiderailbox__r { font-size: 15px; color: var(--txt); font-weight: 700 }
.tiderailbox i { font-size: 11px; color: var(--txt-d); font-style: normal; text-transform: uppercase; letter-spacing: 1px }

.tiderail__times {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  margin-top: 8px;
}
.tiderail__times > div {
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  padding: 14px 18px;
  display: flex; flex-direction: column; gap: 4px;
}
.tiderail__t {
  font-size: 16px; color: var(--acc-2); font-weight: 700;
}
.tiderail__times span { font-size: 12px; color: var(--txt-d) }

/* ===== ФИНАЛЬНЫЙ CTA (surfacecall) ===== */
.surfacecall {
  text-align: center; padding: 56px 22px;
  background:
    radial-gradient(620px 320px at 50% 50%, rgba(14, 143, 196, .16) 0%, transparent 70%),
    var(--bg-2);
  border-radius: var(--r);
  margin: 32px 22px;
  border: 1px solid var(--line);
  max-width: none;
}
.surfacecall h2 { margin-bottom: 10px }
.surfacecall p { color: var(--txt-d); margin-bottom: 24px }

/* ===== FAQ (guyotfaq) ===== */
.guyotfaq h2 { margin-bottom: 22px }
details {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  padding: 16px 20px;
  margin: 0 0 10px;
  transition: border-color .2s;
}
details[open] { border-color: var(--acc-2) }
summary {
  cursor: pointer; font-weight: 600; list-style: none;
  position: relative; padding-right: 32px;
  display: flex; align-items: center; min-height: 24px;
}
summary::-webkit-details-marker { display: none }
summary::after {
  content: "≈"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px;
  border: 1px solid var(--line); border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: var(--acc-2); font-size: 14px;
  transition: transform .25s;
}
details[open] summary::after { transform: translateY(-50%) rotate(180deg); border-color: var(--acc-2) }
details p { margin: 12px 0 0; color: var(--txt-d); font-size: 15px; line-height: 1.66 }

/* ===== ПОДВАЛ (seabed) ===== */
.seabed {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  background: rgba(4, 16, 26, .62);
}
.seabed__top {
  max-width: 1240px; margin: 0 auto;
  padding: 42px 22px 26px;
  display: grid; grid-template-columns: 1.4fr 2fr; gap: 36px;
}
.seabed__brand { font-size: 14px; color: var(--txt-d); line-height: 1.66 }
.seabed__logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.seabed__logo span { display: flex; flex-direction: column; line-height: 1.12 }
.seabed__logo .seabed__name { color: var(--txt); font-size: 16px; font-weight: 700; margin-bottom: 2px; font-family: "Jura", system-ui, sans-serif }
.seabed__legal { font-size: 12px; color: var(--txt-dd); margin: 0; line-height: 1.66 }
.seabed__legal .seabed__op { color: var(--acc-2); font-weight: 600 }
.seabed__cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.seabed__col h4 {
  font-size: 12px; color: var(--acc); font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.6px;
  margin: 0 0 12px;
}
.seabed__col ul { list-style: none; padding: 0; margin: 0 }
.seabed__col li {
  font-size: 13px; color: var(--txt-d);
  padding: 4px 0; cursor: default;
  transition: color .15s;
}
.seabed__col li:hover { color: var(--txt) }
.seabed__bottom {
  border-top: 1px solid var(--line);
  padding: 16px 22px;
  max-width: 1240px; margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  font-size: 12px; color: var(--txt-dd);
}

/* ===== АВТОРСКАЯ СПРАВКА ===== */
.benthos-note {
  max-width: 1240px; margin: 0 auto;
  padding: 8px 22px 48px;
}
.benthos-note__card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--acc-2);
  border-radius: var(--r);
  padding: 22px 26px;
  font-size: 13px; color: var(--txt-d); line-height: 1.66;
}
.benthos-note__card h4 {
  font-size: 14px; color: var(--acc-2); margin: 0 0 8px; font-weight: 700;
}
.benthos-note__card .benthos-note__by { color: var(--txt); font-weight: 600 }

/* ===== АДАПТИВ ===== */
@media (max-width: 1024px) {
  .atoll__grid { grid-template-columns: 1fr }
  .tiderail__grid { grid-template-columns: repeat(3, 1fr) }
  .sonarcup__kpi { grid-template-columns: repeat(2, 1fr) }
  .shelfr__grid { grid-template-columns: 1fr }
  .seabed__top { grid-template-columns: 1fr }
  .abyssstat { grid-template-columns: repeat(3, 1fr) }
  .abyssstat__cell:nth-child(4), .abyssstat__cell:nth-child(5) { border-top: 1px solid var(--line); padding-top: 8px }
  .benthrow { grid-template-columns: repeat(3, 1fr) }
  .benthrow__step { transform: none !important }
}

@media (max-width: 880px) {
  .seamount { grid-template-columns: 1fr; gap: 24px; padding-top: 32px }
  .seamount__pic { order: -1 }
  .nav { display: none }
  .guyotbar { padding: 11px 14px }
  section { padding: 36px 16px }
  .atoll, .sonarcup, .surfacecall { padding: 36px 18px; margin: 22px 14px }
  .sounding__grid { grid-template-columns: 1fr }
  .trench__grid { grid-template-columns: 1fr }
  .seabed__top { padding: 30px 16px 22px; gap: 22px }
  .seabed__cols { grid-template-columns: repeat(2, 1fr); gap: 18px }
  .abyssstat { padding: 8px 14px; grid-template-columns: repeat(2, 1fr); font-size: 12px }
  .abyssstat__cell { padding: 4px 10px }
  .tiderail__times { grid-template-columns: 1fr }
  .kpi { grid-template-columns: repeat(2, 1fr) }
}

@media (max-width: 480px) {
  .reefgrid__grid { grid-template-columns: repeat(2, 1fr); gap: 10px }
  .pelagic__grid { grid-template-columns: 1fr }
  .coralcard h3 { font-size: 13px }
  .coralcard p { font-size: 11px }
  .coralcard__cover { font-size: 16px }
  .seamount__btns { flex-direction: column; align-items: stretch }
  .cta--big { width: 100% }
  .tiderail__grid { grid-template-columns: repeat(2, 1fr) }
  .sonarcup__kpi { grid-template-columns: 1fr }
  .seabed__cols { grid-template-columns: 1fr }
  .benthrow { grid-template-columns: repeat(2, 1fr) }
}