/* ============================================================
   Zen Pool — marketing site
   Bioluminescent "abyss" theme. Self-contained, no external deps.
   ============================================================ */

:root {
  --abyss:        #01070a;
  --abyss-2:      #03101a;
  --ink:          #061018;
  --cyan:         #3fffe0;
  --blue:         #4a6cff;
  --violet:       #b388ff;
  --periwinkle:   #b9c8ff;
  --ice:          #7fe0ff;
  --gold:         #ffc75a;
  --magenta:      #ff2e9a;

  --text:         #e7f3f6;
  --muted:        #9fb3bd;
  --faint:        #6f8591;

  --glass:        rgba(12, 30, 38, 0.45);
  --glass-line:   rgba(120, 220, 224, 0.16);
  --radius:       18px;
  --maxw:         1140px;

  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--abyss);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Living abyss backdrop: deep gradient + two slow drifting glows. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 700px at 78% -8%,  rgba(74,108,255,0.16), transparent 60%),
    radial-gradient(900px 620px  at 12% 108%, rgba(179,136,255,0.13), transparent 60%),
    radial-gradient(700px 520px  at 50% 50%,  rgba(63,255,224,0.05), transparent 70%),
    linear-gradient(180deg, #02080c 0%, #01060a 50%, #010407 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(420px 420px at 20% 30%, rgba(63,255,224,0.07), transparent 70%),
    radial-gradient(520px 520px at 80% 70%, rgba(74,108,255,0.07), transparent 70%);
  animation: drift 34s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes drift {
  from { transform: translate3d(-3%, -2%, 0) scale(1.02); }
  to   { transform: translate3d(3%, 2%, 0)   scale(1.06); }
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: #fff; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- type ---------- */
h1, h2, h3 { font-weight: 300; letter-spacing: 0.5px; line-height: 1.15; }
.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.8;
}
.lead { color: var(--muted); font-size: 1.12rem; max-width: 60ch; }
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  margin: 14px 0 10px;
}
.glow-text {
  background: linear-gradient(120deg, #fff 0%, var(--cyan) 55%, var(--ice) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(2, 9, 13, 0.55);
  border-bottom: 1px solid rgba(120, 220, 224, 0.08);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  letter-spacing: 4px;
  color: #fff;
  font-weight: 300;
}
.brand .dot {
  width: 18px; height: 18px;
  background: url("../img/bubble.png") center / contain no-repeat;
  /* drop-shadow follows the bubble's alpha (a round glow), unlike box-shadow. */
  filter: drop-shadow(0 0 5px rgba(63, 255, 224, 0.5));
}
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.92rem; letter-spacing: 0.5px; }
.nav-links a:hover { color: #fff; }
.nav-cta { padding: 9px 18px !important; }
@media (max-width: 680px) {
  .nav-links a.hide-sm { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 0.96rem;
  letter-spacing: 0.5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn-primary {
  color: #04120f;
  font-weight: 600;
  background: linear-gradient(120deg, var(--cyan), var(--ice));
  box-shadow: 0 0 22px rgba(63,255,224,0.35), 0 6px 24px rgba(0,0,0,0.4);
}
.btn-primary:hover { transform: translateY(-2px); color: #04120f; box-shadow: 0 0 34px rgba(63,255,224,0.55); }
.btn-ghost {
  color: var(--text);
  background: rgba(120, 220, 224, 0.06);
  border-color: var(--glass-line);
}
.btn-ghost:hover { transform: translateY(-2px); color: #fff; background: rgba(120,220,224,0.12); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 80px 0 60px;
  background-color: #02080c;
  background-image:
    linear-gradient(180deg, rgba(1,7,10,0.62), rgba(1,7,10,0.86)),
    url("../img/hero.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
#ripple-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(60% 50% at 50% 42%, rgba(1,7,10,0.15), rgba(1,7,10,0.78) 100%),
    linear-gradient(180deg, rgba(1,7,10,0.4), rgba(1,7,10,0.2) 40%, var(--abyss) 100%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; pointer-events: none; min-width: 0; max-width: 100%; }
.hero-inner .btn { pointer-events: auto; }
.wordmark {
  font-size: clamp(2rem, 9.5vw, 7rem);
  font-weight: 200;
  letter-spacing: 0.1em;
  max-width: 100%;
  overflow-wrap: break-word;
  color: #fff;
  text-shadow: 0 0 24px rgba(63,255,224,0.75), 0 0 60px rgba(63,255,224,0.4);
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe {
  0%,100% { text-shadow: 0 0 22px rgba(63,255,224,0.6), 0 0 52px rgba(63,255,224,0.32); }
  50%     { text-shadow: 0 0 34px rgba(63,255,224,0.9), 0 0 78px rgba(63,255,224,0.5); }
}
.tagline {
  margin-top: 14px;
  font-size: clamp(0.8rem, 2.6vw, 1rem);
  letter-spacing: 0.42em;
  text-transform: lowercase;
  color: rgba(231,243,246,0.62);
}
.hero-sub { margin: 26px auto 30px; max-width: 52ch; color: var(--muted); font-size: 1.08rem; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hint-stir {
  margin-top: 30px; font-size: 0.74rem; letter-spacing: 3px;
  color: rgba(231,243,246,0.34); text-transform: lowercase;
}

/* ---------- generic section ---------- */
section.block { padding: 84px 0; }
.center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- glass cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  padding: 26px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.25s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: rgba(120, 220, 224, 0.34);
  box-shadow: 0 14px 40px rgba(0,0,0,0.45), 0 0 26px rgba(63,255,224,0.1);
}
.card h3 { font-size: 1.28rem; margin-bottom: 8px; color: #fff; }
.card p { color: var(--muted); font-size: 0.98rem; }
.card .icon {
  width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center;
  font-size: 1.3rem; margin-bottom: 16px;
  background: rgba(63,255,224,0.08);
  border: 1px solid rgba(63,255,224,0.18);
}

/* ---------- mode orbs (teaser) ---------- */
.orbs {
  display: flex; flex-wrap: wrap; gap: 30px 26px;
  justify-content: center; margin-top: 14px;
}
.orb-item {
  width: 128px; text-align: center;
  text-decoration: none;
  transition: transform 0.2s ease;
}
.orb-item:hover { transform: translateY(-4px); }
.orb {
  width: 78px; height: 78px; border-radius: 50%; margin: 0 auto 14px;
  background: radial-gradient(circle at 38% 34%,
    rgba(255,255,255,0.95) 0%, var(--c, var(--cyan)) 46%, rgba(0,0,0,0.05) 100%);
  box-shadow: 0 0 22px 1px var(--c, var(--cyan));
  animation: orbPulse 5s ease-in-out infinite;
}
@keyframes orbPulse {
  0%,100% { box-shadow: 0 0 16px 0 var(--c, var(--cyan)); }
  50%     { box-shadow: 0 0 30px 3px var(--c, var(--cyan)); }
}
.orb-item .label { display: block; color: #fff; font-size: 1.02rem; letter-spacing: 1px; }
.orb-item .sub { display: block; color: var(--faint); font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase; }

/* ---------- phone / device frame ---------- */
.device {
  position: relative;
  border-radius: 30px;
  padding: 9px;
  background: linear-gradient(160deg, #1a2730, #060c11);
  border: 1px solid rgba(150, 200, 220, 0.14);
  box-shadow: 0 22px 60px rgba(0,0,0,0.55), 0 0 0 1px rgba(0,0,0,0.4) inset;
  max-width: 260px;
}
.device img { display: block; width: 100%; border-radius: 22px; }
.device-tall { max-width: 280px; }

/* ---------- mode rows (modes page) ---------- */
.mode {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 44px;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid rgba(120, 220, 224, 0.08);
}
.mode:nth-child(even) .mode-media { order: 2; }
.mode-media { display: flex; justify-content: center; }
.mode-body .kicker {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 0.72rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}
.mode-body .kicker .swatch {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--c, var(--cyan)); box-shadow: 0 0 10px var(--c, var(--cyan));
}
.mode-body h2 { font-size: 2rem; color: #fff; margin-bottom: 4px; }
.mode-body .desc-line { color: var(--cyan); font-style: italic; opacity: 0.85; margin-bottom: 14px; }
.mode-body p { color: var(--muted); margin-bottom: 12px; }
/* Calm/Box option cards stacked under the Breathe mode — kept compact so the
   full-width column doesn't run long. */
.breath-opt { padding: 18px 22px; }
.breath-opt h3 { font-size: 1.12rem; margin-bottom: 6px; }
.breath-opt p:last-child { margin-bottom: 0; }
.tex {
  width: 260px; height: 260px; border-radius: 20px;
  object-fit: cover;
  border: 1px solid rgba(150,200,220,0.14);
  box-shadow: 0 18px 50px rgba(0,0,0,0.5);
}
@media (max-width: 800px) {
  .mode { grid-template-columns: 1fr; gap: 22px; }
  .mode:nth-child(even) .mode-media { order: 0; }
}

/* ---------- depth-zone timeline ---------- */
.zones {
  margin-top: 26px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-line);
}
.zone {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.zone:last-child { border-bottom: 0; }
.zone-name { display: flex; align-items: center; gap: 12px; font-size: 1.05rem; color: #fff; letter-spacing: 1px; }
.zone-swatch {
  width: 30px; height: 30px; border-radius: 9px;
  border: 1px solid rgba(255,255,255,0.12);
  flex: none;
}
.zone p { color: var(--muted); font-size: 0.95rem; }
.zone .min { color: var(--faint); font-size: 0.78rem; letter-spacing: 1px; }
@media (max-width: 620px) { .zone { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- level list ---------- */
.levels { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 22px; }
@media (max-width: 720px) { .levels { grid-template-columns: 1fr; } }
.level {
  display: flex; gap: 14px; align-items: flex-start;
  background: rgba(10, 24, 31, 0.4);
  border: 1px solid rgba(120, 220, 224, 0.1);
  border-radius: 14px;
  padding: 16px 18px;
}
.level .lv-dot {
  width: 10px; height: 10px; border-radius: 50%; margin-top: 7px; flex: none;
  background: var(--c, var(--cyan)); box-shadow: 0 0 9px var(--c, var(--cyan));
}
.level h4 { font-weight: 500; color: #fff; font-size: 1.02rem; }
.level p { color: var(--muted); font-size: 0.9rem; }

/* ---------- gallery ---------- */
.gallery {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 8px;
}
@media (max-width: 900px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
.gallery .device { max-width: 100%; }

/* ---------- feature strip ---------- */
.facts { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; justify-content: center; }
.fact {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 18px; border-radius: 999px;
  background: rgba(120,220,224,0.06);
  border: 1px solid var(--glass-line);
  font-size: 0.88rem; color: var(--muted);
}
.fact b { color: #fff; font-weight: 500; }

/* ---------- CTA band ---------- */
.cta-band {
  text-align: center;
  border-radius: 26px;
  padding: 60px 28px;
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(63,255,224,0.12), transparent 60%),
    linear-gradient(180deg, rgba(10,28,36,0.7), rgba(4,12,18,0.7));
  border: 1px solid var(--glass-line);
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid rgba(120,220,224,0.08);
  padding: 50px 0 40px;
  margin-top: 40px;
  color: var(--faint);
}
footer .f-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; align-items: flex-start; }
footer .brand { font-size: 1.1rem; margin-bottom: 10px; }
footer .f-links { display: flex; gap: 22px; flex-wrap: wrap; }
footer .f-links a { color: var(--muted); font-size: 0.9rem; }
footer .f-links a:hover { color: #fff; }
footer .fineprint { margin-top: 26px; font-size: 0.8rem; color: var(--faint); max-width: 70ch; }

/* ---------- legal pages ---------- */
.legal-head {
  padding: 90px 0 30px;
  border-bottom: 1px solid rgba(120,220,224,0.08);
}
.legal {
  max-width: 820px;
  padding: 40px 0 60px;
}
.legal h2 {
  font-size: 1.5rem; color: #fff; margin: 38px 0 12px;
  padding-top: 14px;
}
.legal h3 { font-size: 1.1rem; color: var(--ice); margin: 22px 0 8px; font-weight: 400; }
.legal p, .legal li { color: var(--muted); margin-bottom: 12px; }
.legal ul { padding-left: 22px; margin-bottom: 14px; }
.legal li { margin-bottom: 8px; }
.legal strong { color: var(--text); font-weight: 600; }
.legal .updated { color: var(--faint); font-size: 0.85rem; letter-spacing: 1px; }
.toc {
  background: var(--glass); border: 1px solid var(--glass-line);
  border-radius: 14px; padding: 20px 24px; margin: 24px 0 10px;
}
.toc h4 { color: #fff; font-weight: 500; margin-bottom: 10px; letter-spacing: 1px; font-size: 0.95rem; }
.toc a { display: block; color: var(--muted); padding: 3px 0; font-size: 0.92rem; }
.toc a:hover { color: var(--cyan); }
.callout {
  background: rgba(63,255,224,0.06);
  border: 1px solid rgba(63,255,224,0.2);
  border-left: 3px solid var(--cyan);
  border-radius: 12px;
  padding: 16px 20px; margin: 18px 0;
}
.callout p { color: var(--text); margin: 0; }

/* ---------- scroll reveal (progressive enhancement) ----------
   Only hidden when JS is active (html.js). With no JS / for crawlers,
   content renders fully visible. */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  body::after, .wordmark, .orb { animation: none; }
  .js .reveal, .reveal { transition: none; opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}