/* Cave47 — «Cross-section».
   Layout: every page is a vertical cut through the ground. It starts at the surface (key art), goes down through
   soil, clay and stone, and ends at bedrock with the contact address; a gauge on the right counts metres to −47 m.
   Shared by the studio page, game pages and 404. */
:root {
  --sky: #1F2B3E;
  --soil-1: #2E1E14;
  --soil-2: #261A12;
  --stone: #22201E;
  --bedrock: #110F0E;
  --pocket: #1A120C;
  --lantern: #F2A13A;
  --lantern-hi: #FFD38E;
  --bone: #EFE6D6;
  --text-2: #D8CCB8;
  --dust: #AD9B83;
  --timber: #6B4A2D;
  --timber-dark: #3B2716;
  --pebble: #4E4640;
  --paper: #E9DFC9;
  --paper-ink: #2A2018;
  --display: "Big Shoulders Stencil Display", "Impact", "Arial Narrow", sans-serif;
  --body: "Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", "Consolas", monospace;
  --gutter-r: 64px;
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bedrock); color: var(--bone); font: 400 1.05rem/1.6 var(--body); }
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--lantern); outline-offset: 3px; }
::selection { background: var(--lantern); color: var(--pocket); }
h1, h2, h3 { text-wrap: balance; }
.wrap {
  width: 100%; max-width: 1160px; margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter-r), env(safe-area-inset-right, 0px));
}
@media (max-width: 900px) { :root { --gutter-r: 20px; } }
.skip { position: absolute; left: 12px; top: -60px; z-index: 20; padding: 10px 14px; background: var(--lantern); color: var(--pocket); font: 700 .8rem/1 var(--mono); text-decoration: none; }
.skip:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- surface ---------- */
.surface { position: relative; background: var(--sky); }
.surface-art { width: 100%; height: auto; min-height: 420px; max-height: 760px; object-fit: cover; object-position: 62% 50%; }
.surface::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 30%;
  background: linear-gradient(to bottom, rgba(46, 30, 20, 0), var(--soil-1));
  pointer-events: none;
}
.topbar { position: absolute; inset: 0 0 auto 0; z-index: 3; background: linear-gradient(to bottom, rgba(15, 20, 30, .72), rgba(15, 20, 30, 0)); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px 20px; padding-block: 18px 40px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 1.6rem/1 var(--display); letter-spacing: .06em; }
.brand-mark { width: auto; height: 34px; flex: none; filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .45)); }
.nav { display: flex; gap: 8px 22px; flex-wrap: wrap; }
.nav a { text-decoration: none; font: 700 .78rem/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--bone); opacity: .85; padding-block: 6px; }
.nav a:hover, .nav a[aria-current="page"] { opacity: 1; color: var(--lantern-hi); }
@media (max-width: 520px) { .nav { gap: 6px 14px; } .nav a { font-size: .7rem; letter-spacing: .08em; } .brand .brand-name { display: none; } }

/* ---------- strata ---------- */
main {
  position: relative; display: block;
  background: linear-gradient(to bottom, var(--soil-1) 0%, var(--soil-2) 34%, var(--stone) 60%, #191715 82%, var(--bedrock) 100%);
}
main::before {
  content: ""; position: absolute; inset: 0;
  background: url("../img/pixel-deep.png");
  background-size: 128px; image-rendering: pixelated;
  opacity: .28; mix-blend-mode: soft-light; pointer-events: none;
}
.layer { position: relative; padding-block: 64px; }
.seam {
  position: relative; height: 22px; opacity: .9;
  background:
    radial-gradient(circle at 12px 11px, var(--pebble) 0 6px, transparent 7px) 0 0 / 41px 22px,
    radial-gradient(ellipse 9px 6px at 30px 13px, #5E5650 0 100%, transparent 101%) 0 0 / 59px 22px,
    radial-gradient(circle at 20px 8px, #3A3430 0 4px, transparent 5px) 0 0 / 29px 22px;
}
.depth-label { margin: 0 0 22px; font: 700 .78rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .16em; color: var(--dust); }
.depth-label b { color: var(--lantern); }
.crumbs { margin: 0 0 18px; font: 500 .74rem/1.5 var(--mono); letter-spacing: .06em; color: var(--dust); }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 10px; }
.crumbs li + li::before { content: "/"; margin-right: 10px; opacity: .6; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--lantern-hi); }
.h2 { margin: 0 0 18px; font: 800 clamp(2.2rem, 5vw, 3.6rem)/.95 var(--display); letter-spacing: .02em; }
.prose p { margin: 0 0 14px; max-width: 60ch; color: var(--text-2); }
.prose p:last-child { margin-bottom: 0; }
.quote { margin: 0; color: var(--lantern-hi); font-style: italic; }

/* ---------- buttons ---------- */
.btns { display: flex; flex-wrap: wrap; gap: 14px; }
.btns--after { margin-top: 34px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: .9em 1.25em; text-decoration: none; cursor: pointer;
  font: 700 .86rem/1 var(--mono); text-transform: uppercase; letter-spacing: .1em;
  border: 2px solid var(--lantern); transition: background .15s, color .15s, box-shadow .15s;
}
.btn-main { background: var(--lantern); color: var(--pocket); box-shadow: 0 0 24px rgba(242, 161, 58, .35); }
.btn-main:hover { background: var(--lantern-hi); box-shadow: 0 0 34px rgba(242, 161, 58, .55); }
.btn-plain { background: transparent; color: var(--lantern-hi); }
.btn-plain:hover { background: rgba(242, 161, 58, .12); }

/* ---------- studio intro ---------- */
.intro { padding-block: 10px 70px; }
.wordmark { margin: 0; font: 900 clamp(5rem, 18vw, 14rem)/.8 var(--display); letter-spacing: .02em; }
.wordmark .lit, .lit { color: var(--lantern); text-shadow: 0 0 28px rgba(242, 161, 58, .55), 0 0 4px rgba(255, 211, 142, .6); }
.lede { margin: 26px 0 0; max-width: 40ch; font: 600 clamp(1.2rem, 2.3vw, 1.6rem)/1.35 var(--body); color: var(--bone); }

/* ---------- lantern niche (a game card) ---------- */
.niche {
  position: relative;
  border: 14px solid var(--timber); border-top-width: 22px;
  box-shadow: inset 0 0 0 3px var(--timber-dark), 0 0 0 3px var(--timber-dark), 0 30px 80px rgba(0, 0, 0, .55);
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(242, 161, 58, .30), rgba(242, 161, 58, 0) 70%), var(--pocket);
}
.lamp {
  position: absolute; top: -22px; left: 50%; width: 18px; height: 26px; transform: translate(-50%, 6px);
  background: var(--lantern-hi); border-radius: 4px 4px 8px 8px;
  box-shadow: 0 0 18px 8px rgba(242, 161, 58, .55), 0 0 70px 30px rgba(242, 161, 58, .22);
}
@media (prefers-reduced-motion: no-preference) {
  .lamp { animation: flicker 3.2s infinite steps(1); }
  @keyframes flicker { 0%, 100% { opacity: 1; } 47% { opacity: .86; } 49% { opacity: 1; } 71% { opacity: .92; } }
}
.game-card { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
.game-card-media { padding: 28px 0 28px 28px; min-width: 0; }
.game-card-media a { display: block; }
.loop { width: 100%; aspect-ratio: 1170 / 490; object-fit: cover; border: 3px solid var(--timber-dark); background: #000; }
.caption { margin: 10px 0 0; font: 500 .74rem/1.4 var(--mono); color: var(--dust); letter-spacing: .06em; }
.game-card-info { padding: 28px; display: grid; gap: 16px; align-content: start; min-width: 0; }
.game-card-info h3 { margin: 0; font: 800 clamp(1.9rem, 3.6vw, 2.8rem)/.95 var(--display); letter-spacing: .02em; }
.game-card-info h3 a { text-decoration: none; }
.game-card-info h3 a:hover { color: var(--lantern-hi); }
.hook { margin: 0; color: var(--lantern-hi); font-weight: 600; font-size: 1.12rem; }
.desc { margin: 0; color: var(--text-2); max-width: 60ch; }
.log { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font: 500 .82rem/1.35 var(--mono); }
.log dt { color: var(--dust); text-transform: uppercase; letter-spacing: .1em; }
.log dd { margin: 0; }
.more { margin: 26px 0 0; font: 500 .8rem/1.4 var(--mono); color: var(--dust); letter-spacing: .06em; }
@media (max-width: 860px) {
  .niche { border-width: 10px; border-top-width: 18px; }
  .game-card { grid-template-columns: 1fr; }
  .game-card-media { padding: 22px 22px 0; }
  .game-card-info { padding: 22px; }
}

/* ---------- core samples ---------- */
.cores { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 44px; }
.core { margin: 0; display: grid; gap: 8px; }
.core a { display: block; }
.core img { aspect-ratio: 3 / 4; width: 100%; object-fit: cover; border-radius: 999px 999px 4px 4px / 60px 60px 4px 4px; border: 3px solid #3A322D; transition: border-color .2s; }
.core a:hover img { border-color: var(--lantern); }
.core figcaption { font: 500 .72rem/1.35 var(--mono); color: var(--dust); letter-spacing: .05em; }
.core figcaption b { color: var(--bone); }
@media (max-width: 860px) { .cores { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- studio ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.fieldlog { margin: 0; padding: 22px; border: 2px dashed rgba(173, 155, 131, .45); display: grid; grid-template-columns: auto 1fr; gap: 10px 18px; font: 500 .84rem/1.35 var(--mono); }
.fieldlog dt { color: var(--dust); text-transform: uppercase; letter-spacing: .1em; }
.fieldlog dd { margin: 0; overflow-wrap: anywhere; }
.fieldlog a { text-decoration: none; color: var(--lantern-hi); }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- bedrock ---------- */
.contact { padding-bottom: 90px; }
.contact > .wrap > p { margin: 0 0 22px; color: #CFC3AF; max-width: 52ch; }
.mail-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 22px; }
.mail { font: 800 clamp(2rem, 7vw, 4.8rem)/1 var(--display); letter-spacing: .02em; text-decoration: none; color: var(--bone); overflow-wrap: anywhere; }
.mail:hover { color: var(--lantern-hi); text-shadow: 0 0 22px rgba(242, 161, 58, .5); }
.socials { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 14px; margin-top: 34px; }
.socials-label { margin-right: 6px; font: 700 .78rem/1 var(--mono); text-transform: uppercase; letter-spacing: .16em; color: var(--dust); }
.socials .btn { padding: .75em 1.05em; }

footer { background: var(--bedrock); border-top: 1px solid #2A2522; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; padding-block: 22px; font: 500 .76rem/1.5 var(--mono); color: var(--dust); letter-spacing: .08em; text-transform: uppercase; }
.foot nav { display: flex; gap: 8px 18px; flex-wrap: wrap; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--lantern-hi); }

/* ---------- depth gauge ---------- */
.gauge { position: fixed; z-index: 5; top: calc(env(safe-area-inset-top, 0px) + 90px); bottom: calc(env(safe-area-inset-bottom, 0px) + 40px); right: max(18px, env(safe-area-inset-right, 0px)); width: 30px; pointer-events: none; }
.gauge-rail { position: absolute; top: 0; bottom: 0; right: 6px; width: 2px; background: rgba(239, 230, 214, .22); }
.gauge-fill { position: absolute; top: 0; right: 6px; width: 2px; height: 0; background: var(--lantern); box-shadow: 0 0 10px rgba(242, 161, 58, .6); }
.gauge-tick { position: absolute; right: 0; width: 14px; height: 1px; background: rgba(239, 230, 214, .35); }
.gauge-tick.major { width: 20px; background: rgba(239, 230, 214, .6); }
.gauge-num { position: absolute; right: 26px; transform: translateY(-50%); font: 500 .66rem/1 var(--mono); color: var(--dust); white-space: nowrap; opacity: .7; }
.gauge-mark { position: absolute; top: 0; right: 1px; width: 12px; height: 12px; border-radius: 50%; background: var(--lantern-hi); transform: translateY(-50%); box-shadow: 0 0 14px 4px rgba(242, 161, 58, .6); }
.gauge-read { position: absolute; top: 0; right: 22px; transform: translateY(-50%); padding: 4px 6px; font: 700 .78rem/1 var(--mono); color: var(--lantern-hi); white-space: nowrap; background: rgba(17, 15, 14, .7); }
@media (max-width: 900px) { .gauge { display: none; } }

/* ================= game page ================= */
.surface-logo { position: absolute; z-index: 2; left: max(20px, 2.6vw); bottom: 7%; width: clamp(260px, 25vw, 520px); height: auto; filter: drop-shadow(0 10px 24px rgba(0, 0, 0, .55)); }
@media (max-width: 760px) {
  .surface--game { background: var(--soil-1); }
  .surface-logo { position: relative; left: auto; bottom: auto; width: min(78%, 420px); margin: -70px auto 0; }
}
.title-block { padding-block: 18px 64px; }
.eyebrow { margin: 0 0 12px; font: 700 .78rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .14em; color: var(--lantern); }
.game-title { margin: 0; max-width: 18ch; font: 900 clamp(2.6rem, 6.4vw, 5.4rem)/.9 var(--display); letter-spacing: .015em; }
.title-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 40px; margin-top: 28px; align-items: start; }
.title-grid .hook { font-size: clamp(1.2rem, 2.1vw, 1.45rem); line-height: 1.35; margin-bottom: 14px; }
.title-grid .btns { margin-top: 24px; }
@media (max-width: 860px) { .title-grid { grid-template-columns: 1fr; gap: 26px; } }

/* trailer */
.screen { border: 14px solid var(--timber); border-top-width: 18px; box-shadow: inset 0 0 0 3px var(--timber-dark), 0 0 0 3px var(--timber-dark), 0 30px 80px rgba(0, 0, 0, .55); background: #000; }
.screen video { width: 100%; aspect-ratio: 16 / 9; background: #000; }
@media (max-width: 600px) { .screen { border-width: 8px; } }

/* resettlement order */
.order-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 40px; align-items: center; }
.order {
  margin: 0; padding: 28px 30px 30px;
  background: var(--paper); color: var(--paper-ink);
  font: 500 .95rem/1.6 var(--mono);
  box-shadow: 0 0 0 1px #CBBFA6, 0 24px 60px rgba(0, 0, 0, .5), 0 0 80px rgba(242, 161, 58, .12);
  transform: rotate(-1.2deg);
}
.order h3 { margin: 0 0 14px; padding-bottom: 12px; border-bottom: 2px solid var(--paper-ink); font: 800 1.6rem/1 var(--display); letter-spacing: .08em; }
.order p { margin: 0 0 10px; }
.order .blank { display: inline-block; min-width: 9em; border-bottom: 2px solid var(--paper-ink); }
.order .stamp { margin-top: 18px; display: inline-block; padding: 4px 10px; border: 3px solid #A8231F; color: #A8231F; font: 700 .78rem/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; transform: rotate(-4deg); }
@media (max-width: 860px) { .order-grid { grid-template-columns: 1fr; gap: 30px; } .order { transform: none; } }

/* features */
.features { display: grid; gap: 64px; }
.feature { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.feature:nth-child(even) .feature-media { order: 2; }
.feature h3 { margin: 0 0 14px; font: 800 clamp(1.8rem, 3.6vw, 2.8rem)/.95 var(--display); letter-spacing: .03em; }
.feature-media { margin: 0; min-width: 0; }
.feature-media img, .feature-media video { width: 100%; border: 3px solid var(--timber-dark); box-shadow: 0 20px 60px rgba(0, 0, 0, .45); background: #000; }
.feature-media img { aspect-ratio: 1170 / 490; object-fit: cover; }
.feature .quote { margin-top: 14px; }
@media (max-width: 860px) { .feature { grid-template-columns: 1fr; gap: 20px; } .feature:nth-child(even) .feature-media { order: 0; } }

/* screenshots */
.gallery { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.gallery a { display: block; position: relative; border: 3px solid #3A322D; transition: border-color .2s; }
.gallery a:hover { border-color: var(--lantern); }
.gallery img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
@media (max-width: 860px) { .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; } }
.lightbox { max-width: min(96vw, 1600px); width: 100%; padding: 0; border: 0; background: transparent; color: var(--bone); }
.lightbox::backdrop { background: rgba(8, 6, 5, .92); }
.lightbox figure { margin: 0; display: grid; gap: 10px; }
.lightbox img { width: 100%; height: auto; max-height: 82vh; object-fit: contain; background: #000; }
.lightbox-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.lightbox-bar figcaption { font: 500 .8rem/1.4 var(--mono); color: var(--dust); }
.lightbox-bar .btns { gap: 8px; flex-wrap: nowrap; }
.lightbox-bar .btn { padding: .7em .9em; }

/* issued + specs */
.issued { margin: 0; padding: 0; list-style: none; display: grid; gap: 0; border-top: 1px solid rgba(173, 155, 131, .3); }
.issued li { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid rgba(173, 155, 131, .3); color: var(--text-2); }
.issued li::before { content: "■"; color: var(--lantern); font-size: .7em; line-height: 2.2; }
.specs { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0; font: 500 .86rem/1.45 var(--mono); border-top: 1px solid rgba(173, 155, 131, .3); }
.specs dt, .specs dd { margin: 0; padding: 11px 0; border-bottom: 1px solid rgba(173, 155, 131, .3); }
.specs dt { color: var(--dust); text-transform: uppercase; letter-spacing: .1em; padding-right: 22px; }

/* faq */
.faq { display: grid; gap: 10px; max-width: 820px; }
.faq details { border: 2px solid rgba(173, 155, 131, .35); background: rgba(17, 15, 14, .45); }
.faq details[open] { border-color: rgba(242, 161, 58, .55); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; padding: 16px 18px; font: 700 1.05rem/1.35 var(--body); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 700 1.2rem/1 var(--mono); color: var(--lantern); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 18px 18px; color: var(--text-2); max-width: 64ch; }

/* 404 */
.dead-end { min-height: 60vh; display: grid; align-content: center; padding-block: 90px; }
.dead-end .wordmark { font-size: clamp(5rem, 22vw, 16rem); }