/* ============================================================
   ABYSM — landing page
   The page is the dive: scrolling down descends through the
   real in-game depth-color ramp into the pitch-black trench.
   ============================================================ */

@font-face {
  font-family: "PressStart2P";
  src: url("fonts/PressStart2P-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  /* Depth ramp — the exact background colors ABYSM uses in-game */
  --d0:    #68c6c4;   /*     0 m  surface cyan-teal */
  --d60:   #40a2b6;   /*    60 m  */
  --d200:  #226896;   /*   200 m  */
  --d700:  #143c74;   /*   700 m  */
  --d1500: #0d2654;   /*  1500 m  */
  --d4000: #081636;   /*  4000 m  */
  --d6500: #050c20;   /*  6500 m  */
  --trench:#02050e;   /* 10935 m  the floor */

  /* Accents — warm sun up top, cold bioluminescence in the deep */
  --sun-core: #fffae0;
  --sun-glow: #ffeeaa;
  --brass:    #f4d484;   /* landmarks / treasure */
  --biolume:  #96ece8;   /* the game's UI cyan */
  --lure:     #ffd36a;   /* anglerfish lure */
  --foam:     #ecfcf8;

  /* Text */
  --ink:     #eef8f6;
  --ink-dim: #9fbcc4;
  --ink-deep:#7f9aa6;

  --font-pixel: "PressStart2P", "Courier New", monospace;
  --font-mono:  "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --font-body:  "IBM Plex Sans", system-ui, -apple-system, sans-serif;

  --maxw: 1080px;
  --edge: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--trench);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

::selection { background: var(--biolume); color: var(--trench); }

/* ---- Fixed ocean: JS sets its gradient from scroll depth ------------- */
#ocean {
  position: fixed;
  inset: 0;
  z-index: -3;
  /* CSS fallback if JS is off: a full descent from surface to trench */
  background: linear-gradient(180deg,
    var(--d0) 0%, var(--d60) 6%, var(--d200) 16%,
    var(--d700) 34%, var(--d1500) 52%, var(--d4000) 74%,
    var(--d6500) 88%, var(--trench) 100%);
  transition: background 220ms linear;
}

/* Sun shafts — only meaningful near the surface; they fade out on scroll */
#rays {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 90vh;
  z-index: -2;
  pointer-events: none;
  opacity: var(--rays-opacity, 1);
  background:
    linear-gradient(178deg, rgba(255,247,214,.22), transparent 42%),
    repeating-linear-gradient(101deg,
      transparent 0 44px, rgba(255,247,214,.05) 44px 52px, transparent 52px 128px);
  mix-blend-mode: screen;
  transition: opacity 300ms linear;
}

/* Marine snow — faint suspended specks (paused for reduced motion) */
#snow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.5px 1.5px at 70% 60%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 85% 20%, rgba(255,255,255,.35), transparent),
    radial-gradient(1.5px 1.5px at 55% 45%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 10% 70%, rgba(255,255,255,.3), transparent);
  background-size: 100% 100%;
  opacity: .5;
  animation: snow 26s linear infinite;
}
@keyframes snow { from { background-position: 0 -40px, 0 -20px, 0 -60px, 0 0, 0 -30px, 0 -10px; }
                  to   { background-position: 0 900px, 0 700px, 0 820px, 0 640px, 0 760px, 0 700px; } }

/* Crisp pixel art everywhere */
.diver, .beat-art img, .reef, .floor-craft, .brandmark::before {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ============================================================
   Fixed dive computer (top bar)
   ============================================================ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--edge);
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }

.brandmark {
  font-family: var(--font-pixel);
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--foam);
  text-decoration: none;
  text-shadow: 2px 2px 0 rgba(0,20,40,.55);
  opacity: .9;
}
.brandmark:hover { opacity: 1; }

.dive-computer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: rgba(6, 18, 40, .66);
  border: 2px solid var(--biolume);
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 18px rgba(0,0,0,.35);
}
.dc-read { display: flex; flex-direction: column; line-height: 1.2; }
.dc-meters { font-family: var(--font-pixel); font-size: 15px; color: #fff; }
.dc-unit { font-size: 10px; margin-left: 2px; color: var(--ink-dim); }
.dc-zone {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--biolume);
  margin-top: 3px;
}
.dc-gauge {
  width: 6px;
  height: 34px;
  background: rgba(150, 236, 232, .16);
  position: relative;
  overflow: hidden;
}
#dcFill {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0%;
  background: linear-gradient(180deg, var(--sun-glow), var(--biolume));
  transition: height 120ms linear;
}

/* ============================================================
   Shared type
   ============================================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.eyebrow--sun  { color: #0a3b3f; }
.eyebrow--cyan { color: var(--biolume); }

/* ============================================================
   Hero — 0 m
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px var(--edge) 90px;
  overflow: hidden;
}
.sun {
  position: absolute;
  top: 8%; right: 12%;
  width: min(240px, 42vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--sun-core) 0%, var(--sun-glow) 34%, rgba(255,238,170,0) 70%);
  filter: blur(2px);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 760px; }

.wordmark {
  font-family: var(--font-pixel);
  font-size: clamp(46px, 13vw, 132px);
  line-height: .9;
  margin: 0;
  color: #fff;
  letter-spacing: 2px;
  text-shadow: 5px 5px 0 rgba(6, 34, 66, .85);
}
.tagline {
  font-family: var(--font-mono);
  font-size: clamp(13px, 2.4vw, 19px);
  letter-spacing: 1px;
  color: #06232c;
  margin: 22px 0 0;
  font-weight: 500;
}
.hero-lead {
  max-width: 44ch;
  margin: 22px auto 0;
  color: #072a30;
  font-size: clamp(15px, 1.7vw, 18px);
}
.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 34px;
}
.diver {
  width: clamp(90px, 16vw, 150px);
  margin: 40px auto 0;
  animation: bob 4s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-12px) rotate(1deg); } }

.reef { position: absolute; bottom: -6px; width: clamp(120px, 20vw, 210px); opacity: .9; pointer-events: none; }
.reef--l { left: 3%; }
.reef--r { right: 5%; width: clamp(70px, 12vw, 120px); }

.scroll-cue {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #06232c;
}
.scroll-cue .chev { animation: nudge 1.8s ease-in-out infinite; font-size: 13px; }
@keyframes nudge { 0%,100% { transform: translateY(0); opacity:.6; } 50% { transform: translateY(6px); opacity:1; } }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 24px;
  border: 2px solid transparent;
  transition: transform 120ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: #06232c;
  color: var(--foam);
  box-shadow: 4px 4px 0 rgba(6,34,66,.35);
}
.btn--primary:hover { background: #0a3540; box-shadow: 6px 6px 0 rgba(6,34,66,.4); }
.btn--ghost {
  border-color: currentColor;
  color: #06232c;
}
.btn--ghost:hover { background: rgba(6,34,66,.08); }
.btn--store {
  background: linear-gradient(180deg, var(--brass), #dcb45c);
  color: #2a1a06;
  border-color: #8a6a24;
  box-shadow: 0 0 28px rgba(244,212,132,.28);
  cursor: default;
}

/* ============================================================
   Premise
   ============================================================ */
.premise {
  max-width: 760px;
  margin: 0 auto;
  padding: 16vh var(--edge) 16vh;
  text-align: center;
}
.premise-line {
  font-family: var(--font-mono);
  color: var(--ink-dim);
  letter-spacing: 1px;
  margin: 0 0 10px;
  font-size: clamp(14px, 2vw, 18px);
}
.premise-line--big {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.8vw, 34px);
  line-height: 1.45;
  color: var(--ink);
  font-weight: 500;
  margin: 20px 0 28px;
  letter-spacing: 0;
}
.premise-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--biolume);
  margin: 0;
}

/* ============================================================
   The descent — zone markers + creature/landmark beats
   ============================================================ */
.dive { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--edge); }

.zone-marker {
  text-align: center;
  padding: 20vh 0 8vh;
  position: relative;
}
.zone-marker::before {
  content: "";
  position: absolute;
  top: 6vh; left: 50%;
  width: 2px; height: 10vh;
  background: linear-gradient(180deg, transparent, var(--biolume));
  transform: translateX(-50%);
  opacity: .5;
}
.zone-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--biolume);
}
.zone-name {
  font-family: var(--font-pixel);
  font-size: clamp(22px, 5.5vw, 46px);
  margin: 20px 0 12px;
  color: #fff;
  text-shadow: 3px 3px 0 rgba(0,0,0,.45);
  line-height: 1.1;
}
.zone-range {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 20px);
  color: var(--sun-glow);
  margin: 0 0 14px;
  letter-spacing: 2px;
}
.zone-blurb {
  max-width: 40ch;
  margin: 0 auto;
  color: var(--ink-dim);
  font-size: clamp(14px, 1.8vw, 17px);
}

/* Creature / landmark beat */
.beat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(20px, 5vw, 64px);
  padding: 7vh 0;
}
.beat--right { direction: rtl; }
.beat--right > * { direction: ltr; }

.beat-art {
  display: flex;
  justify-content: center;
  align-items: center;
}
.beat-art img {
  width: clamp(160px, 30vw, 300px);
  filter: drop-shadow(0 12px 26px rgba(0,0,0,.45));
  animation: sway 6s ease-in-out infinite;
}
.beat-art--sm img { width: clamp(120px, 22vw, 210px); }
.beat-art--xs img { width: clamp(84px, 15vw, 140px); }
.beat-art--wide img { width: clamp(200px, 38vw, 360px); }
@keyframes sway { 0%,100% { transform: translateY(0) rotate(-1.2deg); } 50% { transform: translateY(-10px) rotate(1.2deg); } }

.glow-cyan img { filter: drop-shadow(0 0 22px rgba(150,236,232,.5)) drop-shadow(0 12px 22px rgba(0,0,0,.4)); }
.glow-lure img { filter: drop-shadow(0 0 26px rgba(255,211,106,.6)) drop-shadow(0 12px 22px rgba(0,0,0,.4)); }

/* Card styled like the game's in-world fact bubble */
.card {
  border: 2px solid rgba(150, 236, 232, .55);
  background: rgba(8, 20, 44, .62);
  backdrop-filter: blur(4px);
  padding: 22px 24px;
  max-width: 42ch;
}
.card-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--biolume);
  margin: 0 0 8px;
}
.card-name {
  font-family: var(--font-pixel);
  font-size: clamp(13px, 2.1vw, 17px);
  color: #fff;
  margin: 0 0 12px;
  line-height: 1.3;
}
.card-fact { margin: 0; color: var(--ink); font-size: clamp(14px, 1.7vw, 16px); }

.card--landmark { border-color: rgba(244, 212, 132, .6); background: rgba(24, 18, 6, .5); }
.card-meta--gold { color: var(--brass); }
.card-name--gold { color: var(--brass); text-shadow: 2px 2px 0 rgba(0,0,0,.4); }
.beat--landmark .beat-art img { filter: drop-shadow(0 0 20px rgba(244,212,132,.28)) drop-shadow(0 14px 26px rgba(0,0,0,.5)); animation: none; }

/* ============================================================
   The floor — 10,935 m
   ============================================================ */
.floor {
  max-width: 900px;
  margin: 0 auto;
  padding: 24vh var(--edge) 18vh;
  text-align: center;
}
.floor-craft {
  width: clamp(120px, 22vw, 190px);
  margin: 0 auto 30px;
  filter: drop-shadow(0 0 30px rgba(150,236,232,.25));
  animation: bob 5s ease-in-out infinite;
}
.floor-title {
  font-family: var(--font-pixel);
  font-size: clamp(20px, 4.6vw, 40px);
  color: #fff;
  margin: 0 0 16px;
  line-height: 1.2;
  text-shadow: 3px 3px 0 rgba(0,0,0,.5);
}
.floor-sub { color: var(--ink-dim); max-width: 46ch; margin: 0 auto 46px; font-size: clamp(15px, 1.9vw, 18px); }

.pricing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  text-align: left;
  margin-bottom: 40px;
}
.price-card {
  border: 2px solid rgba(150, 236, 232, .35);
  background: rgba(8, 20, 44, .5);
  padding: 24px;
}
.price-card--deep { border-color: rgba(244, 212, 132, .55); background: rgba(20, 14, 4, .5); }
.price-tag {
  font-family: var(--font-pixel);
  font-size: clamp(18px, 3.2vw, 26px);
  color: var(--biolume);
  margin: 0 0 12px;
}
.price-card--deep .price-tag { color: var(--brass); }
.price-once { font-family: var(--font-mono); font-size: 12px; letter-spacing: 2px; color: var(--ink-dim); text-transform: uppercase; }
.price-what { margin: 0; color: var(--ink); font-size: 15px; }
.price-what strong { color: #fff; }

.floor-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }

.specs {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(20px, 6vw, 60px);
  padding: 34px 0 0;
  margin: 0;
  border-top: 1px solid rgba(150,236,232,.16);
}
.specs li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.spec-n { font-family: var(--font-pixel); font-size: clamp(20px, 4vw, 30px); color: var(--biolume); }
.specs-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--ink-deep);
  margin: 28px 0 0;
}

/* ============================================================
   Legal — the fine print, below the floor
   ============================================================ */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 12vh var(--edge) 4vh;
}
.legal-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--ink-deep);
  margin: 0 0 14px;
}
.legal-title {
  font-family: var(--font-pixel);
  font-size: clamp(20px, 4vw, 30px);
  color: var(--biolume);
  margin: 0 0 26px;
}
.legal-body { color: var(--ink-dim); }
.legal-body h3 {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--foam);
  margin: 30px 0 8px;
}
.legal-body p { margin: 0 0 14px; font-size: 15.5px; }
.legal-body strong { color: var(--ink); }
.legal-body code {
  font-family: var(--font-mono);
  font-size: .88em;
  background: rgba(150,236,232,.1);
  padding: 1px 6px;
  color: var(--biolume);
}
.legal-body a { color: var(--biolume); text-underline-offset: 3px; }
.legal-contact { margin-top: 22px; font-size: 14px; color: var(--ink-deep); }

/* ============================================================
   Footer — the trench floor
   ============================================================ */
.site-footer {
  text-align: center;
  padding: 12vh var(--edge) 8vh;
  border-top: 1px solid rgba(150,236,232,.1);
  margin-top: 8vh;
}
.foot-word {
  font-family: var(--font-pixel);
  font-size: clamp(24px, 6vw, 44px);
  color: rgba(150, 236, 232, .22);
  margin: 0 0 26px;
  letter-spacing: 3px;
}
.foot-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-bottom: 28px;
}
.foot-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 140ms ease;
}
.foot-nav a:hover { color: var(--biolume); }
.foot-fine { font-family: var(--font-mono); font-size: 12px; color: var(--ink-deep); margin: 6px 0; letter-spacing: 1px; }
.foot-fine--dim { color: rgba(127,154,166,.6); }

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   Focus + responsive
   ============================================================ */
a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--biolume);
  outline-offset: 3px;
}

@media (max-width: 720px) {
  .beat, .beat--right { grid-template-columns: 1fr; direction: ltr; text-align: center; gap: 22px; }
  .beat-art img { margin-inline: auto; }
  .card { margin-inline: auto; }
  .pricing { grid-template-columns: 1fr; }
  .dc-zone { display: none; }
  .brandmark { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #snow { animation: none; }
  .diver, .beat-art img, .floor-craft, .scroll-cue .chev { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  #ocean { transition: none; }
}