/* vulkan24-casino1.pro — премиум-лендинг Vulkan 24 / Вулкан 24. Парадигма «геологический разрез / strata cross-section». Палитра: volcanic copper-teal */

:root {
  --bg: #130a06;
  --bg-2: #1c1109;
  --bg-3: #26170d;
  --line: #3a2415;
  --line-2: #4d3320;
  --txt: #f0e4da;
  --txt-d: #a89482;
  --txt-dd: #7a6853;
  --copper: #e06a2c;
  --teal: #3aa8a0;
  --teal-d: #2c8078;
  --magma: #e06a2c;
  --good: #7cc9a0;
  --r: 4px;
  --r-s: 3px;
  /* текстура страты — тонкие горизонтальные прожилки породы */
  --strata-tex: repeating-linear-gradient(0deg, rgba(168,148,130,.05) 0px, rgba(168,148,130,.05) 1px, transparent 1px, transparent 9px);
}

* { box-sizing: border-box }
html { scroll-behavior: smooth }
body {
  margin: 0;
  font: 16px/1.66 "Sen", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Arial, sans-serif;
  color: var(--txt);
  background:
    radial-gradient(1000px 600px at 90% -12%, rgba(224,106,44,.14) 0%, transparent 60%),
    radial-gradient(880px 620px at -6% 92%, rgba(224,106,44,.16) 0%, transparent 58%),
    radial-gradient(720px 500px at 12% 20%, rgba(58,168,160,.08) 0%, transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; height: auto }
a { color: var(--copper); text-decoration: none }
a:hover { text-decoration: underline }

.skip {
  position: absolute; top: -42px; left: 8px;
  padding: 8px 12px; background: var(--copper); color: #180a06;
  border-radius: 4px; z-index: 100; font-weight: 700;
}
.skip:focus { top: 8px }

/* headings — Bruno Ace */
h1, h2, h3, .rig__name, .gauge__num, .core__pct, .crest__kn,
.drill__num, .drill__head, .layer__name, .eruption__kpi span,
.facet__h, .rock__face, .table__face, .magma__name, .magma__col h4,
.assay__times em, .rig__mark {
  font-family: "Bruno Ace", "Sen", system-ui, sans-serif;
  font-weight: 400;
}

/* ===== TOP BAR / RIG ===== */
.rig {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(19,10,6,.9);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 50;
}
.rig__mark { display: flex; align-items: center; gap: 11px; color: var(--txt) }
.rig__mark:hover { text-decoration: none }
.rig__svg {
  width: 32px; height: 32px; flex: none;
  filter: drop-shadow(0 0 9px rgba(224,106,44,.55));
}
.rig__name { font-size: 17px; line-height: 1; letter-spacing: .4px }
.rig__tag {
  display: block; font-size: 9px; color: var(--txt-d);
  letter-spacing: 2.4px; font-weight: 700; margin-top: 5px;
  text-transform: uppercase; font-family: "Sen", sans-serif;
}
.rig__nav { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap }
.rig__nav a {
  color: var(--txt-d); font-size: 14px; padding: 4px 0;
  border-bottom: 1px solid transparent; transition: color .15s, border-color .15s;
}
.rig__nav a:hover { color: var(--copper); border-bottom-color: var(--copper); text-decoration: none }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: var(--r);
  font-family: "Bruno Ace", system-ui, sans-serif;
  font-weight: 400; font-size: 12.5px;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform .15s, box-shadow .2s, background .2s, border-color .2s;
  cursor: pointer; letter-spacing: .4px;
}
.btn:hover { text-decoration: none; transform: translateY(-1px) }
.btn--ash { background: var(--bg-3); color: var(--txt); border-color: var(--line) }
.btn--ash:hover { background: var(--bg-2); border-color: var(--copper) }
.btn--big { padding: 15px 30px; font-size: 13.5px }
.btn--magma {
  background: linear-gradient(120deg, var(--copper) 0%, #f0954f 55%, var(--teal) 130%);
  color: #1a0c04; border: 0;
  box-shadow: 0 12px 30px -10px rgba(224,106,44,.65);
}
.btn--magma:hover { box-shadow: 0 16px 40px -8px rgba(224,106,44,.9) }
.btn--ghost { background: transparent; color: var(--txt); border-color: var(--line-2) }
.btn--ghost:hover { border-color: var(--copper); color: var(--copper) }

/* ===== AGGREGATE COUNTER / GAUGE ===== */
.gauge {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 0; padding: 10px 22px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(224,106,44,.06), rgba(58,168,160,.05));
  font-size: 13px;
}
.gauge__cell {
  display: flex; flex-direction: column; gap: 2px;
  padding: 6px 14px;
  border-right: 1px solid var(--line);
  align-items: flex-start;
}
.gauge__cell:last-child { border-right: 0 }
.gauge__num { font-size: 16px; color: var(--copper); letter-spacing: .3px }
.gauge__lbl { font-size: 10.5px; color: var(--txt-d); letter-spacing: .6px; text-transform: uppercase }

/* ===== HERO / CREST ===== */
.crest {
  display: grid; grid-template-columns: 1.18fr 1fr; gap: 36px;
  padding: 50px 22px 34px;
  max-width: 1220px; margin: 0 auto;
  align-items: center;
}
.crest__chip {
  display: inline-block;
  font-size: 11px; letter-spacing: 1.6px; color: var(--copper);
  background: rgba(224,106,44,.08);
  border: 1px solid rgba(224,106,44,.3);
  padding: 6px 13px; border-radius: 4px;
  margin: 0 0 18px;
  text-transform: uppercase; font-weight: 700;
}
h1 {
  font-size: clamp(26px, 3.8vw, 42px); line-height: 1.16;
  margin: 0 0 18px; letter-spacing: .2px;
}
.acc { color: var(--copper) }
.crest__sub { color: var(--txt-d); font-size: 16px; margin: 0 0 14px; line-height: 1.7 }
.crest__btns { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 28px }
.crest__fig { margin: 0 }
.crest__svg {
  display: block; width: 100%; height: auto;
  border-radius: var(--r); border: 1px solid var(--line);
  background:
    radial-gradient(420px 320px at 50% 88%, rgba(224,106,44,.3), transparent 60%),
    linear-gradient(180deg, #1a1009 0%, #241206 100%);
  aspect-ratio: 16 / 11;
  box-shadow: 0 24px 64px -22px rgba(224,106,44,.5);
}
.crest__fig figcaption {
  margin-top: 12px; font-size: 12px; color: var(--txt-dd);
  font-style: italic; text-align: right;
}
.crest__kpi {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  padding: 18px 0 0; border-top: 1px solid var(--line);
}
.crest__ki { display: flex; flex-direction: column; gap: 3px }
.crest__kn { font-size: 25px; color: var(--copper) }
.crest__kl { font-size: 11px; color: var(--txt-d); text-transform: uppercase; letter-spacing: 1.1px }

/* ===== SECTIONS — STRATA ===== */
section {
  max-width: 1220px; margin: 0 auto;
  padding: 56px 22px;
  position: relative;
}
section.crest, section.deposit { padding-top: 36px }
/* горизонтальные прожилки породы + шкала глубины слева */
.deposit, .seam, .mantle, .vent, .survey, .samples, .assay, .probe, .drill {
  background-image: var(--strata-tex);
}
.deposit::before, .seam::before, .mantle::before, .vent::before,
.survey::before, .samples::before, .assay::before, .probe::before, .drill::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: repeating-linear-gradient(180deg, var(--copper) 0 14px, transparent 14px 28px);
  opacity: .5;
}
/* depth overline — метка страты/глубины */
.depth {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; letter-spacing: 2.4px; text-transform: uppercase;
  color: var(--teal); font-weight: 700;
  margin: 0 0 10px; padding-left: 14px;
  border-left: 2px solid var(--teal);
}
h2 { font-size: clamp(21px, 2.9vw, 32px); line-height: 1.24; margin: 0 0 16px; letter-spacing: .2px }
h3 {
  font-size: clamp(15px, 1.8vw, 19px); line-height: 1.36;
  margin: 30px 0 10px; color: var(--copper);
  border-left: 3px solid var(--copper); padding-left: 14px;
}
p { margin: 0 0 14px; color: var(--txt) }
.lead { color: var(--txt-d); font-size: 16px; margin-bottom: 24px; max-width: 820px; line-height: 1.72 }

/* ===== WELCOME / DEPOSIT — три керна ===== */
.deposit {
  background-color: rgba(28,17,9,.55);
  border: 1px solid var(--line);
  border-radius: var(--r);
  margin: 32px 22px; max-width: none;
}
.deposit__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0 24px }
.core {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--copper);
  border-radius: 0 0 var(--r) var(--r);
  padding: 22px 20px;
  position: relative; overflow: hidden;
  transition: border-color .2s, transform .15s;
}
.core::after {
  /* деления керн-колонки */
  content: ""; position: absolute; right: 10px; top: 18px; bottom: 18px; width: 6px;
  background: repeating-linear-gradient(180deg, var(--line-2) 0 3px, transparent 3px 12px);
  opacity: .7;
}
.core:hover { border-color: var(--copper); transform: translateY(-2px) }
.core__step { font-size: 11px; color: var(--teal); font-weight: 700; letter-spacing: 2px; margin-bottom: 8px; text-transform: uppercase }
.core__pct { font-size: 30px; line-height: 1; color: var(--copper); margin-bottom: 10px }
.core__title { font-weight: 700; font-size: 15px; margin-bottom: 6px }
.core__sub { font-size: 13px; color: var(--txt-d); line-height: 1.55 }

/* ===== THREE STEPS / DRILL ===== */
.drill__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 22px }
.drill__step {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px;
  position: relative; overflow: hidden;
}
.drill__num {
  position: absolute; top: 12px; right: 22px;
  font-size: 56px; line-height: 1; color: var(--bg-3);
}
.drill__head { font-size: 18px; margin-bottom: 12px; color: var(--copper) }
.drill__step p { color: var(--txt-d); font-size: 14px; margin: 0 }

/* ===== CATALOGUE / SEAM ===== */
.seam__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px; margin: 24px 0;
}
.rock {
  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;
}
.rock:hover { transform: translateY(-3px); border-color: var(--copper); box-shadow: 0 18px 36px -14px rgba(224,106,44,.45) }
.rock__face {
  width: 100%; aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: rgba(240,228,218,.97);
  text-align: center; padding: 14px; line-height: 1.2;
  position: relative; overflow: hidden;
}
.rock__face::after {
  content: ""; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(0,0,0,.16) 0 2px, transparent 2px 7px),
    linear-gradient(160deg, transparent 40%, rgba(0,0,0,.45) 100%);
  pointer-events: none;
}
.fc-1 { background: linear-gradient(135deg, #3a1c08 0%, #e06a2c 100%) }
.fc-2 { background: linear-gradient(135deg, #3a1608 0%, #f0954f 100%); color: #1a0c04 }
.fc-3 { background: linear-gradient(135deg, #0e332f 0%, #3aa8a0 100%); color: #07120f }
.fc-4 { background: linear-gradient(135deg, #3a2408 0%, #f0a24f 100%); color: #1a0c04 }
.fc-5 { background: linear-gradient(135deg, #3a1c08 0%, #e06a2c 100%) }
.fc-6 { background: linear-gradient(135deg, #10403a 0%, #47c4ba 100%); color: #07120f }
.fc-7 { background: linear-gradient(135deg, #3a1808 0%, #e07a3a 100%) }
.fc-8 { background: linear-gradient(135deg, #3a1c08 0%, #e06a2c 100%) }
.fc-9 { background: linear-gradient(135deg, #0e332f 0%, #3aa8a0 100%); color: #07120f }
.fc-10 { background: linear-gradient(135deg, #3a2608 0%, #f0ab52 100%); color: #1a0c04 }
.fc-11 { background: linear-gradient(135deg, #3a1808 0%, #e07a3a 100%) }
.fc-12 { background: linear-gradient(135deg, #10403a 0%, #3aa8a0 100%); color: #07120f }
.rock h3 { font-family: "Sen", sans-serif; font-size: 15px; margin: 12px 14px 4px; color: var(--txt); font-weight: 700; border: 0; padding: 0 }
.rock p { font-size: 12px; color: var(--txt-d); margin: 0 14px 12px; line-height: 1.4 }
.rock__btn {
  display: block; padding: 10px; margin: auto 12px 12px;
  background: var(--bg-3); color: var(--txt);
  text-align: center; border-radius: var(--r); font-size: 13px; font-weight: 700;
  border: 1px solid var(--line); transition: all .15s;
}
.rock__btn:hover { background: var(--copper); border-color: var(--copper); color: #1a0c04; text-decoration: none }

.vein { margin: 22px 0 0 }
.vein__title { font-size: 12px; color: var(--teal); margin-bottom: 10px; letter-spacing: 1.4px; text-transform: uppercase; font-weight: 700 }
.vein__list { display: flex; flex-wrap: wrap; gap: 8px }
.vein__list span {
  padding: 6px 13px; background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 4px;
  font-size: 12px; color: var(--txt-d);
}

/* ===== LOYALTY / MANTLE — стек страт ===== */
.mantle__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 22px }
.facet {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--r); padding: 22px 24px; transition: border-color .2s;
}
.facet:hover { border-color: var(--teal) }
.facet__h { font-size: 17px; margin-bottom: 10px; color: var(--teal) }
.facet p { color: var(--txt-d); font-size: 14px; margin: 0; line-height: 1.62 }

/* VIP-страты как вертикальный разрез сверху вниз */
.column {
  display: flex; flex-direction: column; gap: 0;
  margin-top: 14px; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
}
.layer {
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, var(--bg-3), var(--bg-2));
  position: relative;
}
.layer:nth-child(1) { background: linear-gradient(90deg, #1f130a, #1c1109) }
.layer:nth-child(2) { background: linear-gradient(90deg, #24160c, #1f130a) }
.layer:nth-child(3) { background: linear-gradient(90deg, #2c1a0d, #24160c) }
.layer:nth-child(4) { background: linear-gradient(90deg, #3a2110, #2c1a0d) }
.layer:nth-child(5) { background: linear-gradient(90deg, #4c2912, #3a2110) }
.layer--vulcan { background: linear-gradient(90deg, #6e3414, rgba(224,106,44,.32)) !important; border-bottom: 0 }
.layer__name { font-size: 15px; color: var(--txt); letter-spacing: .5px }
.layer:nth-child(1) .layer__name { color: var(--teal) }
.layer--vulcan .layer__name { color: var(--copper) }
.layer__cb { font-size: 13px; color: var(--txt-d); font-weight: 700; font-family: "Sen", sans-serif }
.layer__d { font-size: 11px; color: var(--txt-dd); font-family: "Sen", sans-serif; min-width: 64px; text-align: right }

/* ===== TOURNAMENT / ERUPTION ===== */
.eruption {
  background:
    radial-gradient(640px 380px at 50% 118%, rgba(224,106,44,.22) 0%, transparent 70%),
    var(--bg-2);
  border: 1px solid var(--line); border-radius: var(--r);
  margin: 32px 22px; max-width: none; text-align: center;
}
.eruption__btns { margin: 22px 0 28px }
.eruption__kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 22px }
.eruption__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: 5px; text-align: center;
}
.eruption__kpi span { font-size: 23px; color: var(--copper) }
.eruption__kpi em { font-size: 14px; font-weight: 700; color: var(--txt); font-style: normal }
.eruption__kpi i { font-size: 12px; color: var(--txt-d); font-style: normal; line-height: 1.4 }

/* ===== LIVE / VENT ===== */
.vent__grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px; margin-top: 22px;
}
.table {
  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;
}
.table:hover { transform: translateY(-3px); border-color: var(--copper); box-shadow: 0 18px 36px -14px rgba(224,106,44,.45) }
.table__face {
  width: 100%; aspect-ratio: 16 / 9;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; color: rgba(240,228,218,.97);
  padding: 12px; text-align: center; line-height: 1.2;
  position: relative; overflow: hidden;
}
.vn-1 { background: linear-gradient(135deg, #3a1c08 0%, #e06a2c 100%) }
.vn-2 { background: linear-gradient(135deg, #3a2408 0%, #f0a24f 100%); color: #1a0c04 }
.vn-3 { background: linear-gradient(135deg, #0e332f 0%, #3aa8a0 100%); color: #07120f }
.vn-4 { background: linear-gradient(135deg, #10403a 0%, #47c4ba 100%); color: #07120f }
.vn-5 { background: linear-gradient(135deg, #3a1808 0%, #e07a3a 100%) }
.vn-6 { background: linear-gradient(135deg, #0e332f 0%, #3aa8a0 100%); color: #07120f }
.table__b { padding: 14px 16px 16px; position: relative }
.table__t { font-weight: 700; font-size: 16px; margin-bottom: 4px }
.table__s { font-size: 12px; color: var(--txt-d); margin-bottom: 10px }
.table__m { font-size: 13px; color: var(--teal); font-weight: 700; margin-bottom: 4px }
.table__p { font-size: 12px; color: var(--txt-dd) }
.table__live {
  position: absolute; top: 12px; right: 16px;
  background: var(--copper); color: #fff;
  padding: 3px 10px; border-radius: 4px;
  font-size: 10px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase;
}

/* ===== BRAND OVERVIEW / SURVEY ===== */
.survey p { color: var(--txt); line-height: 1.74 }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line) }
.bdg {
  padding: 7px 14px; background: var(--bg-2);
  border: 1px solid var(--copper); border-radius: 4px;
  font-size: 12px; color: var(--txt); letter-spacing: .4px;
}

/* ===== REVIEWS / SAMPLES ===== */
.samples__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 22px }
.note {
  background: var(--bg-2); border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: var(--r); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.note__stars { color: var(--copper); font-size: 16px; letter-spacing: 4px }
.note__stars--four .star-off { color: var(--line-2) }
.note__q { font-size: 14px; line-height: 1.62; color: var(--txt); margin: 0; font-style: italic }
.note__meta {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--txt-d);
  border-top: 1px solid var(--line); padding-top: 14px;
}
.note__a {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--copper), var(--teal));
  border-radius: 50%; color: #1a0c04; font-weight: 800; font-size: 14px; flex: none;
}

/* ===== PAYMENTS / ASSAY ===== */
.assay__grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin: 22px 0 }
.rail {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r);
  padding: 18px 14px; text-align: center; display: flex; flex-direction: column; gap: 4px;
}
.rail__b { font-size: 15px; color: var(--txt); font-weight: 700 }
.rail i { font-size: 11px; color: var(--txt-d); font-style: normal; text-transform: uppercase; letter-spacing: 1px }
.assay__times { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 8px }
.assay__times > div {
  background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px 18px; display: flex; flex-direction: column; gap: 5px;
}
.assay__times em { font-size: 17px; color: var(--copper); font-style: normal }
.assay__times span { font-size: 12px; color: var(--txt-d) }

/* ===== FINAL / SUMMIT ===== */
.summit {
  text-align: center; padding: 58px 22px;
  background:
    radial-gradient(620px 340px at 50% 120%, rgba(224,106,44,.24) 0%, transparent 70%),
    var(--bg-2);
  border-radius: var(--r); margin: 32px 22px;
  border: 1px solid var(--line); max-width: none;
}
.summit h2 { margin-bottom: 10px }
.summit p { color: var(--txt-d); margin-bottom: 24px }

/* ===== AUTHOR NOTE / LOG ===== */
.log {
  background: rgba(28,17,9,.5);
  border: 1px solid var(--line); border-left: 3px solid var(--teal);
  border-radius: var(--r); margin: 32px 22px; max-width: none;
  padding: 36px 30px;
}
.log h2 { font-size: clamp(19px, 2.3vw, 25px); margin-bottom: 16px }
.log p { color: var(--txt-d); font-size: 14px; line-height: 1.76; max-width: 940px }

/* ===== FAQ / PROBE ===== */
.probe h2 { margin-bottom: 22px }
details {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r);
  padding: 16px 20px; margin: 0 0 10px; transition: border-color .2s;
}
details[open] { border-color: var(--copper) }
summary {
  cursor: pointer; font-weight: 700; 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(--copper); font-size: 16px; transition: transform .25s;
}
details[open] summary::after { content: "\2013"; border-color: var(--copper) }
details p { margin: 12px 0 0; color: var(--txt-d); font-size: 15px; line-height: 1.68 }

/* ===== FOOTER / MAGMA ===== */
.magma {
  margin-top: 24px;
  border-top: 2px solid var(--copper);
  background:
    radial-gradient(900px 240px at 50% 0%, rgba(224,106,44,.14) 0%, transparent 70%),
    rgba(19,10,6,.7);
}
.magma__top {
  max-width: 1220px; margin: 0 auto; padding: 42px 22px 26px;
  display: grid; grid-template-columns: 1.4fr 2fr; gap: 36px;
}
.magma__brand { font-size: 14px; color: var(--txt-d); line-height: 1.66 }
.magma__logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px }
.magma__logo span { display: flex; flex-direction: column; line-height: 1.1 }
.magma__name { color: var(--txt); font-size: 16px; margin-bottom: 3px }
.magma__legal { font-size: 12px; color: var(--txt-dd); margin: 0; line-height: 1.66 }
.magma__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px }
.magma__col h4 {
  font-size: 12px; color: var(--teal);
  text-transform: uppercase; letter-spacing: 1px; margin: 0 0 12px;
}
.magma__col ul { list-style: none; padding: 0; margin: 0 }
.magma__col li { font-size: 13px; color: var(--txt-d); padding: 4px 0; transition: color .15s }
.magma__col li:hover { color: var(--txt) }
.magma__bottom {
  border-top: 1px solid var(--line); padding: 16px 22px;
  max-width: 1220px; margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  font-size: 12px; color: var(--txt-dd);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .deposit__grid { grid-template-columns: 1fr }
  .assay__grid { grid-template-columns: repeat(3, 1fr) }
  .eruption__kpi { grid-template-columns: repeat(2, 1fr) }
  .samples__grid { grid-template-columns: 1fr }
  .magma__top { grid-template-columns: 1fr }
  .gauge { grid-template-columns: repeat(3, 1fr) }
  .gauge__cell:nth-child(4), .gauge__cell:nth-child(5) { border-top: 1px solid var(--line); padding-top: 8px }
}
@media (max-width: 880px) {
  .crest { grid-template-columns: 1fr; gap: 24px; padding-top: 32px }
  .crest__fig { order: -1 }
  .rig__nav { display: none }
  .rig { padding: 11px 14px }
  section { padding: 38px 16px }
  .deposit, .eruption, .summit, .log { padding: 36px 18px; margin: 22px 14px }
  .drill__grid { grid-template-columns: 1fr }
  .mantle__grid { grid-template-columns: 1fr }
  .magma__top { padding: 30px 16px 22px; gap: 22px }
  .magma__cols { grid-template-columns: repeat(2, 1fr); gap: 18px }
  .gauge { padding: 8px 14px; grid-template-columns: repeat(2, 1fr); font-size: 12px }
  .gauge__cell { padding: 4px 10px }
  .assay__times { grid-template-columns: 1fr }
  .crest__kpi { grid-template-columns: repeat(2, 1fr) }
}
@media (max-width: 480px) {
  .seam__grid { grid-template-columns: repeat(2, 1fr); gap: 10px }
  .vent__grid { grid-template-columns: 1fr }
  .rock h3 { font-size: 13px }
  .rock p { font-size: 11px }
  .rock__face { font-size: 15px }
  .crest__btns { flex-direction: column; align-items: stretch }
  .btn--big { width: 100% }
  .assay__grid { grid-template-columns: repeat(2, 1fr) }
  .eruption__kpi { grid-template-columns: 1fr }
  .magma__cols { grid-template-columns: 1fr }
  .layer { grid-template-columns: 1fr auto; gap: 8px }
  .layer__d { display: none }
}