/* ORANGE AQUACULTURE — "The Dive" storefront
   Single committed dark theme: the page IS the water column. */

:root {
  --abyss: #04121d;
  --abyss-deep: #01080f;
  --lagoon: #0e3a4a;
  --cyan: #57e4d4;
  --cyan-dim: rgba(87, 228, 212, 0.55);
  --orange: #f79420;
  --orange-deep: #d97b0e;
  --foam: #f3f7f5;
  --seafog: #a7bec2;
  --seafog-dim: #6d888e;
  --line: rgba(87, 228, 212, 0.14);

  --display: "Avenir Next Condensed", "Arial Narrow", "Helvetica Neue", system-ui, sans-serif;
  --body: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;

  --mx: 50vw;
  --my: 40vh;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  color: var(--seafog);
  background: var(--abyss-deep);
  overflow-x: hidden;
  line-height: 1.6;
}

::selection { background: var(--orange); color: var(--abyss-deep); }

a { color: var(--cyan); text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- fixed water column layers ---------- */

.water {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: linear-gradient(#0e4a63, #06283b);
}

#sea {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.torch {
  position: fixed;
  left: 0;
  top: 0;
  width: 920px;
  height: 920px;
  margin: -460px 0 0 -460px;
  z-index: 3;
  pointer-events: none;
  mix-blend-mode: screen;
  background:
    radial-gradient(circle, rgba(255, 205, 130, 0.10) 0%, transparent 34%),
    radial-gradient(circle, rgba(110, 220, 255, 0.13) 0%, rgba(110, 220, 255, 0.05) 42%, transparent 68%);
  transform: translate(var(--mx), var(--my));
  will-change: transform;
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem clamp(1.2rem, 4vw, 3rem);
  background: rgba(2, 12, 20, 0.55);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--foam);
}

.brand svg.fish-svg { width: 44px; max-width: 44px; height: auto; flex: none; }

.brand-word {
  font-family: var(--display);
  line-height: 1.05;
  letter-spacing: 0.04em;
}
.brand-word .b1 {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--orange);
}
.brand-word .b2 {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  color: var(--foam);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2.5vw, 1.8rem);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.nav-links a { color: var(--seafog); }
.nav-links a:hover { color: var(--cyan); }
.nav-links .ig {
  color: var(--abyss-deep);
  background: var(--orange);
  padding: 0.45em 0.9em;
  border-radius: 999px;
  font-weight: 700;
}
.nav-links .ig:hover { background: var(--foam); color: var(--abyss-deep); }

@media (max-width: 720px) {
  .nav-links a:not(.ig) { display: none; }
}

/* ---------- layout ---------- */

main { position: relative; z-index: 4; }

.zone {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(5rem, 12vh, 9rem) clamp(1.2rem, 5vw, 3rem);
}

.zone-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4em 1em;
  margin-bottom: 1.6rem;
}
.zone-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

h1, h2 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--foam);
  letter-spacing: 0.015em;
  line-height: 0.98;
  text-wrap: balance;
}

h2 { font-size: clamp(2rem, 5.5vw, 3.4rem); margin-bottom: 1rem; }

.lede {
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--seafog);
}

.accent { color: var(--orange); }

/* ---------- hero ---------- */

.hero {
  min-height: 100svh;
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 9rem;
  overflow: hidden;
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
  padding: 0 clamp(1.2rem, 5vw, 3rem);
}

.hero h1 {
  font-size: clamp(2.4rem, 10.5vw, 7.5rem);
  margin: 0.6rem 0 1.4rem;
}
.hero h1 .accent { text-shadow: 0 0 42px rgba(247, 148, 32, 0.35); }

.hero .lede { font-size: clamp(1.05rem, 1.9vw, 1.3rem); max-width: 52ch; }

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.95em 1.7em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.btn-primary {
  background: var(--orange);
  color: var(--abyss-deep);
  box-shadow: 0 0 0 rgba(247, 148, 32, 0);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 34px rgba(247, 148, 32, 0.35);
}
.btn-ghost {
  border-color: var(--line);
  color: var(--cyan);
}
.btn-ghost:hover { background: rgba(87, 228, 212, 0.08); transform: translateY(-2px); }

.hero-hint {
  margin-top: 3.2rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--seafog-dim);
}
.hero-hint b { color: var(--cyan-dim); font-weight: 600; }

/* secret line — readable only under the torch */
.hero-secret {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  -webkit-mask-image: radial-gradient(180px circle at var(--smx, -500px) var(--smy, -500px), #000 30%, transparent 75%);
  mask-image: radial-gradient(180px circle at var(--smx, -500px) var(--smy, -500px), #000 30%, transparent 75%);
}

/* caustic light + sun shafts, hero only */
.caustics { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.caustics::before,
.caustics::after {
  content: "";
  position: absolute;
  inset: -30%;
  mix-blend-mode: screen;
  background:
    radial-gradient(38% 26% at 30% 30%, rgba(87, 228, 212, 0.07), transparent 70%),
    radial-gradient(30% 22% at 70% 60%, rgba(120, 220, 255, 0.06), transparent 70%),
    radial-gradient(26% 30% at 50% 80%, rgba(87, 228, 212, 0.05), transparent 70%);
  filter: blur(28px);
  animation: drift1 26s ease-in-out infinite alternate;
}
.caustics::after {
  animation: drift2 34s ease-in-out infinite alternate;
  opacity: 0.8;
}
@keyframes drift1 {
  from { transform: translate(-4%, -3%) scale(1); }
  to   { transform: translate(5%, 4%) scale(1.12); }
}
@keyframes drift2 {
  from { transform: translate(4%, 2%) scale(1.1) rotate(2deg); }
  to   { transform: translate(-5%, -4%) scale(1) rotate(-2deg); }
}

.shafts { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shafts::before,
.shafts::after {
  content: "";
  position: absolute;
  top: -12%;
  width: 26vw;
  height: 130%;
  background: linear-gradient(rgba(160, 230, 255, 0.10), transparent 62%);
  transform: skewX(-14deg);
  filter: blur(24px);
  mix-blend-mode: screen;
  animation: shaft 11s ease-in-out infinite alternate;
}
.shafts::before { left: 12%; }
.shafts::after { left: 58%; width: 18vw; animation-delay: -5s; animation-duration: 14s; }
@keyframes shaft {
  from { opacity: 0.45; transform: skewX(-14deg) translateX(0); }
  to   { opacity: 1; transform: skewX(-11deg) translateX(3vw); }
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--seafog-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
}
.scroll-cue::after {
  content: "";
  width: 1px;
  height: 44px;
  background: linear-gradient(var(--cyan), transparent);
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue {
  0%, 100% { transform: scaleY(0.5); opacity: 0.4; transform-origin: top; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- section headers ---------- */

.zone-head { margin-bottom: 3rem; }
.zone-head .lede { margin-top: 0.6rem; }

/* ---------- cards ---------- */

.card-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}

.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(14, 58, 74, 0.45), rgba(4, 18, 29, 0.7));
  padding: 1.6rem 1.5rem 1.7rem;
  transform-style: preserve-3d;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}
.card:hover {
  border-color: rgba(87, 228, 212, 0.4);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.45),
    0 0 40px rgba(87, 228, 212, 0.10) inset;
}

.card-art {
  height: 230px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.4rem;
  border-radius: 12px;
  background: radial-gradient(120% 90% at 50% 110%, rgba(87, 228, 212, 0.07), transparent 70%);
  overflow: hidden;
}

/* rising bubbles on card hover */
.card::before,
.card::after {
  content: "";
  position: absolute;
  bottom: 1rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid rgba(180, 240, 255, 0.55);
  background: rgba(180, 240, 255, 0.08);
  opacity: 0;
  pointer-events: none;
}
.card::before { left: 22%; }
.card::after { right: 18%; width: 5px; height: 5px; }
@media (prefers-reduced-motion: no-preference) {
  .card:hover::before { animation: bubbleUp 1.6s ease-in 0.1s infinite; }
  .card:hover::after { animation: bubbleUp 2s ease-in 0.6s infinite; }
}
@keyframes bubbleUp {
  0% { opacity: 0; transform: translateY(0) translateX(0); }
  15% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-150px) translateX(8px); }
}

.card h3 {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 1.35rem;
  color: var(--foam);
}
.card .sci {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--cyan-dim);
  text-transform: uppercase;
  margin: 0.25rem 0 0.9rem;
}
.card p { font-size: 0.92rem; }

.card ul {
  list-style: none;
  margin-top: 0.9rem;
  display: grid;
  gap: 0.45rem;
  font-size: 0.86rem;
}
.card li {
  padding-left: 1.2em;
  position: relative;
}
.card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.3rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.card-foot .size { color: var(--seafog-dim); }
.card-foot a { color: var(--orange); font-weight: 700; }
.card-foot a:hover { color: var(--foam); }

/* ---------- culture bottles (product shots) ---------- */

.bottle-shot {
  height: 100%;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  transform-origin: 50% 62%;
  filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.55));
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
}
@media (prefers-reduced-motion: no-preference) {
  .card:hover .bottle-shot { transform: scale(0.9); }
}

/* ---------- clownfish cards ---------- */

.fish-svg { width: 78%; max-width: 240px; height: auto; overflow: visible; }

.fish-svg .body { fill: var(--fish-body, var(--orange)); }
.fish-svg .fin { fill: var(--fish-fin, var(--orange-deep)); }
.fish-svg .band { fill: #f6fbfa; stroke: #10222b; stroke-width: 3; }
.fish-svg .snow { display: none; }

.card--black .fish-svg { --fish-body: #33393f; --fish-fin: #1d2126; }
.card--snow .fish-svg .band-mid { display: none; }
.card--snow .fish-svg .snow { display: block; }

.fish-svg .tail-g { transform-origin: 36px 60px; }
.fish-svg .fin-p { transform-origin: 118px 66px; }
@media (prefers-reduced-motion: no-preference) {
  .card:hover .fish-svg { animation: nudge 1.1s ease-in-out infinite alternate; }
  .card:hover .fish-svg .tail-g { animation: wag 0.45s ease-in-out infinite alternate; }
  .card:hover .fish-svg .fin-p { animation: flap 0.6s ease-in-out infinite alternate; }
}
@keyframes wag { from { transform: rotate(-14deg); } to { transform: rotate(14deg); } }
@keyframes flap { from { transform: rotate(-10deg); } to { transform: rotate(16deg); } }
@keyframes nudge { from { transform: translateX(-5px); } to { transform: translateX(7px) translateY(-3px); } }

/* ---------- why (educational strip) ---------- */

.pull {
  font-family: var(--display);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(1.7rem, 4.5vw, 2.9rem);
  line-height: 1.05;
  color: var(--foam);
  max-width: 22ch;
  margin-bottom: 3rem;
  text-wrap: balance;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.2rem;
}
.why-grid h3 {
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 1.15rem;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}
.why-grid p { font-size: 0.93rem; }
.why-grid .n {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--seafog-dim);
  display: block;
  margin-bottom: 0.8rem;
}

/* ---------- visit ---------- */

.visit-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(80% 120% at 85% -10%, rgba(247, 148, 32, 0.10), transparent 60%),
    linear-gradient(160deg, rgba(14, 58, 74, 0.4), rgba(2, 10, 17, 0.8));
  display: grid;
  gap: 1.4rem;
}
.visit-card h2 { margin-bottom: 0; }
.visit-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--seafog-dim);
}
.visit-meta b { color: var(--foam); font-weight: 600; display: block; margin-top: 0.3em; }
.visit-meta a { color: inherit; text-decoration: none; border-bottom: 1px solid rgba(87, 228, 212, 0.35); }
.visit-meta a:hover { color: var(--cyan); }

/* the not-on-Instagram escape hatch */
.no-ig {
  margin-top: 1.6rem;
  font-size: 0.92rem;
  color: var(--seafog-dim);
}
.no-ig a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(87, 228, 212, 0.4);
}
.no-ig a:hover { color: var(--foam); }

/* ---------- footer ---------- */

footer {
  position: relative;
  z-index: 4;
  padding: 2.5rem clamp(1.2rem, 5vw, 3rem) 3rem;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--seafog-dim);
}
footer a { color: var(--cyan-dim); }
footer .foot-line { margin: 0; }

/* compliance statement — body font, sentence case: the footer's uppercase
   mono is fine for one line but unreadable across a paragraph */
.compliance {
  max-width: 64ch;
  margin: 0 auto 1.9rem;
  padding-bottom: 1.7rem;
  border-bottom: 1px solid rgba(87, 228, 212, 0.13);
  font-family: var(--body);
  font-size: 0.8rem;
  line-height: 1.75;
  letter-spacing: 0.005em;
  text-transform: none;
  text-wrap: pretty;
  color: var(--seafog-dim);
}

/* ---------- depth gauge ---------- */

.gauge {
  position: fixed;
  right: clamp(0.8rem, 2vw, 1.6rem);
  top: 50%;
  transform: translateY(-50%);
  height: 46vh;
  z-index: 6;
  display: flex;
  align-items: stretch;
  gap: 0.7rem;
  pointer-events: none;
}
.gauge-track {
  width: 1px;
  background:
    repeating-linear-gradient(
      rgba(167, 190, 194, 0.5) 0 1px,
      transparent 1px calc(46vh / 8)
    ),
    rgba(167, 190, 194, 0.18);
}
.gauge-marker {
  position: absolute;
  left: -4px;
  top: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 12px rgba(247, 148, 32, 0.8);
}
.gauge-read {
  position: absolute;
  right: 14px;
  top: 0;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--seafog);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.gauge-read b { color: var(--orange); font-weight: 700; }
@media (max-width: 900px) { .gauge { display: none; } }

/* ---------- reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(6px);
  transition: opacity 0.9s ease, transform 0.9s ease, filter 0.9s ease;
}
.reveal.in { opacity: 1; transform: none; filter: none; }
.reveal:nth-child(2) { transition-delay: 0.12s; }
.reveal:nth-child(3) { transition-delay: 0.24s; }
.reveal:nth-child(4) { transition-delay: 0.36s; }

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caustics::before, .caustics::after,
  .shafts::before, .shafts::after,
  .scroll-cue::after { animation: none; }
  .torch { display: none; }
  .reveal { opacity: 1; transform: none; filter: none; transition: none; }
}