/* ============================================================================
   Membrane Health — Web Design System
   A 1:1 port of MembraneTheme.swift (the "Intra" inward-journey aesthetic):
   a near-black night with the warm glow ("the light you find by going in"),
   parchment text, and a cream light-mode mirror.

   Tokens, type, and components mirror the iOS app so web and app share one
   visual language. Dark is the default; light mode is the cream mirror.
   ============================================================================ */

/* ---- Fonts (self-hosted static cuts, same files the app bundles) ---------- */
@font-face {
  font-family: "Fraunces";
  src: url("../fonts/Fraunces-Light.ttf") format("truetype");
  font-weight: 300; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("../fonts/Fraunces-Regular.ttf") format("truetype");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("../fonts/Fraunces-Italic.ttf") format("truetype");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/HankenGrotesk-Regular.ttf") format("truetype");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/HankenGrotesk-Medium.ttf") format("truetype");
  font-weight: 500; font-style: normal; font-display: swap;
}

/* ---- Palette tokens (dark = night) ---------------------------------------
   Hex values lifted verbatim from MembranePalette in MembraneTheme.swift.    */
:root {
  --night:        #0A0A0F;
  --night-deep:   #060608;
  --ink:          #101018;

  --parchment:     #F3EDE0;
  --parchment-dim: #B9B2A4;
  --muted:         #7E7A72;

  --glow:      #ECC77E;   /* the brand accent — "the light you find by going in" */
  --glow-soft: #F2DCAB;

  --aqua:      #66E0ED;   /* cool secondary, used sparingly against the gold    */
  --aqua-deep: #21A8C7;
  --indigo:    #2A2545;

  --line:          rgba(243, 237, 224, 0.12);
  --surface-top:    rgba(20, 20, 30, 0.55);
  --surface-bottom: rgba(10, 10, 15, 0.55);

  /* Warmed RYG status (semantics preserved, expression warmed) */
  --status-go:      #8FB06A;   /* green  → ready          */
  --status-ease:    #E3A63F;   /* yellow → take it easy   */
  --status-recover: #CB6149;   /* red    → recover        */

  /* Type families */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --body:  "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Motion — the slow breath (≈11s full cycle in the app) */
  --breathe-period: 11s;
  --reveal: 0.9s;

  /* Layout rhythm */
  --maxw: 1120px;
  --gutter: clamp(20px, 5vw, 56px);
}

/* ---- Light mode = the cream mirror --------------------------------------- */
:root[data-theme="light"] {
  --night:        #F4EEE2;
  --night-deep:   #ECE4D4;
  --ink:          #FFFAF0;

  --parchment:     #1D1812;
  --parchment-dim: #5C5346;
  --muted:         #8A8173;

  --glow:      #B07414;
  --glow-soft: #8A5A0E;

  --aqua:      #1E8A9C;
  --aqua-deep: #166F80;
  --indigo:    #DCCFB6;

  --line:          rgba(29, 24, 18, 0.14);
  --surface-top:    rgba(255, 251, 243, 0.75);
  --surface-bottom: rgba(236, 228, 214, 0.55);

  --status-go:      #5E7A36;
  --status-ease:    #B07414;
  --status-recover: #A8412C;
}

/* ---- Reset / 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(--night);
  color: var(--parchment);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
}

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; line-height: 1.12; margin: 0; }
p { margin: 0 0 1em; }
a { color: var(--glow); text-decoration: none; transition: opacity 0.2s ease; }
a:hover { opacity: 0.78; }
img { max-width: 100%; display: block; }
::selection { background: rgba(236, 199, 126, 0.22); }

/* ---- Layout helpers ------------------------------------------------------ */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 11vw, 132px); }
.section--tight { padding-block: clamp(44px, 7vw, 80px); }
.center { text-align: center; }
.grid { display: grid; gap: clamp(18px, 2.4vw, 28px); }

/* ---- Eyebrow (uppercase, wide-tracked label) ----------------------------- */
.eyebrow {
  font-family: var(--body);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--glow);
  opacity: 0.9;
  margin: 0 0 16px;
}

/* ---- Display / headings -------------------------------------------------- */
.display {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.4rem, 6.2vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.012em;
}
.h-section {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  letter-spacing: -0.01em;
}
.h-card { font-family: var(--serif); font-size: 1.28rem; color: var(--parchment); }
.serif-italic { font-style: italic; color: var(--glow-soft); }
.lede {
  font-size: clamp(1.05rem, 1.7vw, 1.32rem);
  color: var(--parchment-dim);
  max-width: 60ch;
}
.subtle { color: var(--parchment-dim); }
.muted  { color: var(--muted); }

/* ---- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--body); font-weight: 500; font-size: 0.98rem;
  padding: 0.85em 1.5em; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.18s ease, background-color 0.2s ease, opacity 0.2s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--glow); color: #1B140A;
  box-shadow: 0 6px 30px -8px rgba(236, 199, 126, 0.5);
}
.btn--primary:hover { opacity: 0.92; }
.btn--ghost {
  background: transparent; color: var(--parchment);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--glow); opacity: 1; }

/* ---- Card (translucent gradient + hairline border) ----------------------- */
.card {
  background: linear-gradient(to bottom, var(--surface-top), var(--surface-bottom));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(22px, 2.6vw, 32px);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.card--feature { display: flex; flex-direction: column; gap: 12px; height: 100%; }

/* ---- Chip (selectable pill) ---------------------------------------------- */
.chip {
  display: inline-flex; align-items: center;
  font-family: var(--body); font-size: 0.82rem;
  color: var(--parchment-dim);
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent;
}
.chip--on {
  color: var(--parchment);
  border-color: var(--glow);
  background: rgba(236, 199, 126, 0.10);
}

/* ---- GlowDot (logo mark / live indicator) -------------------------------- */
.glow-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--glow);
  box-shadow: 0 0 11px 1px var(--glow);
  flex: none;
}

/* ---- BreathGlow (signature pulsing radial glow) -------------------------- */
.breath-glow {
  position: absolute; inset: 0; margin: auto;
  width: 520px; height: 520px; max-width: 92vw; max-height: 92vw;
  border-radius: 50%;
  background: radial-gradient(circle at center,
              rgba(236, 199, 126, 0.30) 0%,
              rgba(236, 199, 126, 0.10) 38%,
              transparent 68%);
  filter: blur(8px);
  pointer-events: none; z-index: 0;
  animation: breathe var(--breathe-period) ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(0.82); opacity: 0.55; }
  50%      { transform: scale(1.12); opacity: 0.95; }
}
@media (prefers-reduced-motion: reduce) {
  .breath-glow { animation: none; transform: scale(1); opacity: 0.7; }
}

/* ---- Status light -------------------------------------------------------- */
.status-dot { width: 44px; height: 44px; border-radius: 50%; }
.status-go      { background: var(--status-go);      box-shadow: 0 0 18px -2px var(--status-go); }
.status-ease    { background: var(--status-ease);    box-shadow: 0 0 18px -2px var(--status-ease); }
.status-recover { background: var(--status-recover); box-shadow: 0 0 18px -2px var(--status-recover); }

/* ---- Hairline divider ---------------------------------------------------- */
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---- Reveal-on-scroll ---------------------------------------------------- */
.reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity var(--reveal) ease, transform var(--reveal) ease;
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   PAGE LAYOUT — site-specific composition on top of the design system above
   ========================================================================== */

/* ---- Grids --------------------------------------------------------------- */
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3 { grid-template-columns: 1fr; } }

.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

/* small gold kicker above a card title */
.feature__kicker {
  font-family: var(--body); font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--glow); opacity: 0.85; margin: 0 0 4px;
}

/* ---- Nav ----------------------------------------------------------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--night) 78%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--parchment); }
.brand:hover { opacity: 1; }
.brand__mark { display: block; }
.brand__word {
  font-family: var(--body); font-weight: 500; font-size: 0.78rem;
  letter-spacing: 0.22em; color: var(--parchment);
}
.nav__links { display: flex; gap: 26px; margin-left: auto; }
.nav__links a {
  font-family: var(--body); font-size: 0.9rem; color: var(--parchment-dim);
}
.nav__links a:hover { color: var(--parchment); opacity: 1; }
.nav__actions { display: flex; align-items: center; gap: 14px; }
.btn--sm { padding: 0.6em 1.1em; font-size: 0.86rem; }
@media (max-width: 820px) {
  .nav__links { display: none; }
  .nav__inner { gap: 14px; }
  .brand__word { font-size: 0.72rem; }
}

/* Theme toggle (night ⇄ cream) */
.theme-toggle {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--line); background: transparent; cursor: pointer;
  display: grid; place-items: center; padding: 0;
  transition: border-color 0.2s ease;
}
.theme-toggle:hover { border-color: var(--glow); }
.theme-toggle__glyph {
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--glow);
  box-shadow: inset -5px -3px 0 0 var(--night);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}
:root[data-theme="light"] .theme-toggle__glyph {
  box-shadow: inset 0 0 0 0 var(--night), 0 0 8px 1px var(--glow);
}

/* ---- Hero ---------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden;
  min-height: min(86vh, 760px);
  display: flex; align-items: center;
  padding-block: clamp(64px, 12vh, 140px);
}
.hero__inner { position: relative; z-index: 1; text-align: center; }
.hero .eyebrow { margin-bottom: 22px; }
.hero .display { margin: 0 auto; max-width: 16ch; }
.hero .lede { margin: 28px auto 0; }
.hero__cta { display: flex; gap: 14px; justify-content: center; margin-top: 38px; flex-wrap: wrap; }
.hero__status { display: flex; gap: 22px; justify-content: center; margin-top: 52px; }
.status-chip {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--body); font-size: 0.82rem; color: var(--parchment-dim);
  letter-spacing: 0.04em;
}
.status-chip .status-dot { width: 13px; height: 13px; }

/* The breath glow sits centered behind the hero content */
.hero .breath-glow { top: -8%; }

/* ---- Section heads ------------------------------------------------------- */
.sec-head { max-width: 62ch; margin-bottom: clamp(36px, 5vw, 60px); }
.sec-head .lede { margin-top: 20px; }
.sec-head--center { margin-inline: auto; text-align: center; }
.sec-head--center .lede { margin-inline: auto; }

/* ---- Premise ------------------------------------------------------------- */
.premise { max-width: 24ch; }
.premise .h-section { max-width: 18ch; }
.premise .lede { max-width: 56ch; margin-top: 26px; }
.premise { max-width: 760px; }

/* ---- Steps --------------------------------------------------------------- */
.step__no {
  font-family: var(--serif); font-weight: 300; font-size: 1.5rem;
  color: var(--glow); opacity: 0.85;
}
.card--feature .h-card { margin-top: 2px; }

/* ---- Signals ------------------------------------------------------------- */
.signals .eyebrow { margin-bottom: 22px; }
.signal-row {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}

/* ---- Device mockup (real app home screen) -------------------------------- */
.device { margin: 4px auto clamp(40px, 6vw, 64px); width: min(330px, 74vw); }
.device__frame {
  position: relative; padding: 9px; border-radius: 42px;
  background: linear-gradient(155deg, #2b2b32, #0b0b0e);
  border: 1px solid rgba(243, 237, 224, 0.10);
  box-shadow: 0 34px 90px -34px rgba(0, 0, 0, 0.75),
              0 0 64px -20px rgba(236, 199, 126, 0.22);
}
.device__shot { display: block; width: 100%; border-radius: 34px; }
.device__shot--light { display: none; }
:root[data-theme="light"] .device__shot--dark { display: none; }
:root[data-theme="light"] .device__shot--light { display: block; }

/* clickable screenshots → open the lightbox */
.device__frame { cursor: zoom-in; transition: transform 0.25s ease; }
.device__frame:hover { transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) { .device__frame:hover { transform: none; } }

/* ---- Lightbox ------------------------------------------------------------ */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: none; align-items: center; justify-content: center;
  padding: 4vh 4vw; cursor: zoom-out;
  background: rgba(6, 6, 8, 0.92);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.lightbox.is-open { display: flex; }
.lightbox img {
  max-width: 100%; max-height: 92vh; width: auto; height: auto;
  border-radius: 20px; box-shadow: 0 30px 90px -28px rgba(0, 0, 0, 0.85);
}
.lightbox__close {
  position: absolute; top: 16px; right: 20px;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--line); background: rgba(20, 20, 30, 0.6);
  color: var(--parchment); font-size: 22px; line-height: 1; cursor: pointer;
  display: grid; place-items: center;
}
.lightbox__close:hover { border-color: var(--glow); }
@media (prefers-reduced-motion: no-preference) {
  .lightbox.is-open img { animation: lb-in 0.22s ease both; }
}
@keyframes lb-in { from { transform: scale(0.96); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---- Pro screens gallery ------------------------------------------------- */
.pro-gallery {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: flex-start;
  gap: clamp(22px, 3vw, 40px); max-width: 1010px; margin: 0 auto;
}
.pro-shot { margin: 0; width: clamp(196px, 30vw, 240px); }
.pro-shot .device__frame { padding: 7px; border-radius: 32px; }
.pro-shot img { width: 100%; border-radius: 26px; }   /* visibility governed by .device__shot--dark/--light */
.pro-shot figcaption {
  margin-top: 14px; text-align: center; font-size: 0.85rem;
  color: var(--parchment-dim); line-height: 1.45;
}
.pro-shot figcaption strong {
  display: block; color: var(--parchment); font-family: var(--body);
  font-weight: 500; margin-bottom: 3px;
}

/* ---- Pro Mode band ------------------------------------------------------- */
.pro {
  position: relative; overflow: hidden;
  background: linear-gradient(to bottom, var(--night-deep), var(--night));
  border-block: 1px solid var(--line);
}
.pro__glow { top: -16%; opacity: 0.6; }

/* The Pro dashboard — live quick-stat tiles */
.dash {
  display: grid; gap: 14px;
  grid-template-columns: repeat(6, 1fr);
  max-width: 920px; margin-inline: auto;
}
@media (max-width: 900px) { .dash { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 520px) { .dash { grid-template-columns: repeat(2, 1fr); } }
.stat-tile {
  display: flex; flex-direction: column; align-items: center; gap: 7px;
  text-align: center; padding: 20px 12px;
  background: linear-gradient(to bottom, var(--surface-top), var(--surface-bottom));
  border: 1px solid var(--line); border-radius: 14px;
}
.stat-tile__dot { width: 9px; height: 9px; border-radius: 50%; }
.stat-tile__val { font-family: var(--serif); font-weight: 300; font-size: 1.5rem; color: var(--parchment); line-height: 1; }
.stat-tile__label { font-family: var(--body); font-size: 0.68rem; letter-spacing: 0.06em; color: var(--parchment-dim); }
.dash__note { margin-top: 20px; font-size: 0.86rem; }

/* The Pro tools */
.tool { transition: transform 0.3s ease, border-color 0.3s ease; }
.tool:hover { transform: translateY(-4px); border-color: rgba(236,199,126,0.32); }
.tool .h-card { margin-bottom: 8px; }
.tool--travel { border-color: rgba(236,199,126,0.22); }
.tool__meta { margin: 14px 0 0; font-size: 0.78rem; letter-spacing: 0.02em; }

/* ---- Plans --------------------------------------------------------------- */
.plan { display: flex; flex-direction: column; position: relative; }
.plan__tier { font-family: var(--serif); font-weight: 400; font-size: 1.5rem; color: var(--parchment); margin: 0; }
.plan__desc { font-size: 0.92rem; margin: 6px 0 0; }
.plan .rule { margin: 18px 0; }
.plan__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.plan__list li { position: relative; padding-left: 22px; font-size: 0.92rem; color: var(--parchment-dim); }
.plan__list li::before {
  content: ""; position: absolute; left: 4px; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--glow); box-shadow: 0 0 8px 0 var(--glow);
}
.plan__plus { color: var(--parchment); font-weight: 500; }
.plan__list li:has(.plan__plus)::before { background: transparent; box-shadow: none; }
.plan--featured { border-color: rgba(236,199,126,0.45); box-shadow: 0 18px 60px -30px rgba(236,199,126,0.45); }
.plan__badge {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  font-family: var(--body); font-size: 0.66rem; font-weight: 500; letter-spacing: 0.16em;
  text-transform: uppercase; color: #1B140A; background: var(--glow);
  padding: 4px 13px; border-radius: 999px;
}
.plans__note { margin-top: 36px; font-size: 0.9rem; }
.plans__note strong { color: var(--glow); font-weight: 500; }

/* ---- The five modes ------------------------------------------------------ */
.modes { max-width: 720px; margin: 0 auto; }
.mode {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 22px; border: 1px solid var(--line); border-radius: 14px;
  background: linear-gradient(to bottom, var(--surface-top), var(--surface-bottom));
}
.mode + .mode { margin-top: 12px; }
.mode__dot {
  flex: none; width: 12px; height: 12px; border-radius: 50%; margin-top: 7px;
  background: var(--m, var(--glow)); box-shadow: 0 0 14px -1px var(--m, var(--glow));
}
.mode__name { font-family: var(--serif); font-weight: 400; font-size: 1.25rem; color: var(--parchment); margin: 0 0 5px; }
.mode__body .subtle { margin: 0; }
.mode--earned { border-color: rgba(102, 224, 237, 0.30); }
.mode--peak {
  border-color: rgba(236, 199, 126, 0.45);
  box-shadow: 0 0 54px -24px rgba(236, 199, 126, 0.65);
}
.mode__tag {
  font-family: var(--body); font-weight: 500; font-size: 0.58rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: #1B140A; background: var(--glow);
  padding: 3px 9px; border-radius: 999px; vertical-align: 0.18em; margin-left: 9px;
}

/* ---- Get / CTA ----------------------------------------------------------- */
.get { position: relative; overflow: hidden; text-align: center; }
.get__glow { top: 0; opacity: 0.6; }
.get__inner { position: relative; z-index: 1; }
.get__h { margin: 14px 0 8px; }
.get__req { margin-top: 22px; font-size: 0.82rem; letter-spacing: 0.04em; }
.release { margin-top: 32px; display: flex; justify-content: center; }
.release__pill {
  display: inline-flex; align-items: center; gap: 11px;
  font-family: var(--body); font-weight: 500; font-size: 1.02rem;
  color: var(--parchment); letter-spacing: 0.01em;
  padding: 14px 26px; border-radius: 999px;
  border: 1px solid var(--glow); background: rgba(236, 199, 126, 0.08);
  box-shadow: 0 0 44px -16px rgba(236, 199, 126, 0.6);
}

/* ---- Waitlist / email capture -------------------------------------------- */
.waitlist { max-width: 480px; margin: 32px auto 0; }
.waitlist__lead {
  font-family: var(--serif); font-style: italic; font-weight: 300;
  color: var(--glow-soft); font-size: 1.16rem; margin: 0 0 14px;
}
.waitlist__row { display: flex; gap: 10px; }
.waitlist__input {
  flex: 1 1 auto; min-width: 0;
  font-family: var(--body); font-size: 1rem; color: var(--parchment);
  background: linear-gradient(to bottom, var(--surface-top), var(--surface-bottom));
  border: 1px solid var(--line); border-radius: 999px; padding: 0.85em 1.35em;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.waitlist__input::placeholder { color: var(--muted); }
.waitlist__input:focus {
  outline: none; border-color: var(--glow);
  box-shadow: 0 0 0 3px rgba(236, 199, 126, 0.14);
}
.waitlist__row .btn { flex: none; white-space: nowrap; }
/* honeypot — offscreen; real visitors never fill it */
.waitlist__hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
/* Cloudflare Turnstile widget */
.waitlist__captcha { margin: 16px 0 0; display: flex; justify-content: center; min-height: 65px; }
.waitlist__captcha:empty { min-height: 0; margin: 0; }
.waitlist__hint { margin: 12px 0 0; font-size: 0.85rem; color: var(--status-ease); }
.waitlist__note { margin: 14px 0 0; font-size: 0.8rem; }
.waitlist__note a { color: var(--parchment-dim); }
.waitlist__note a:hover { color: var(--glow); opacity: 1; }

.waitlist__done {
  max-width: 480px; margin: 32px auto 0;
  display: flex; align-items: center; gap: 13px; justify-content: center;
  padding: 18px 24px; border: 1px solid rgba(236, 199, 126, 0.4); border-radius: 16px;
  background: rgba(236, 199, 126, 0.07);
}
.waitlist__done p { margin: 0; color: var(--parchment); font-size: 0.98rem; text-align: left; }
@media (prefers-reduced-motion: no-preference) {
  .waitlist__done:not([hidden]) { animation: faq-in 0.3s ease both; }
}
@media (max-width: 520px) {
  .waitlist__row { flex-direction: column; }
  .waitlist__row .btn { width: 100%; justify-content: center; }
  .waitlist__input { text-align: center; }
}

/* ---- Why it's different (contrast cards) --------------------------------- */
.diff { position: relative; }
.diff__most {
  font-size: 0.84rem; color: var(--muted); margin: 0 0 16px; padding-bottom: 14px;
  border-bottom: 1px solid var(--line); line-height: 1.45;
}
.diff .h-card { margin-bottom: 8px; }

/* ---- The membrane idea --------------------------------------------------- */
.idea { position: relative; overflow: hidden; }
.idea__glow { top: -10%; opacity: 0.5; }
.idea__grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
@media (max-width: 860px) { .idea__grid { grid-template-columns: 1fr; } }
.idea__copy { max-width: 56ch; }
.idea__copy .lede { margin-top: 22px; }
.idea__copy .subtle { margin-top: 16px; font-size: 1.02rem; }
.idea__sign { margin-top: 26px; font-size: 1.1rem; color: var(--glow-soft); }
.idea__fig { margin: 0; display: grid; place-items: center; }

.mfig { width: min(360px, 82vw); height: auto; display: block; }
.mfig-edge { fill: none; stroke: var(--glow); stroke-width: 2; }
.mfig-room { stroke: var(--parchment-dim); stroke-width: 1.4; stroke-dasharray: 3 5; opacity: 0.8; }
.mfig-you { fill: var(--glow); filter: drop-shadow(0 0 7px var(--glow)); }
.mfig-lbl { fill: var(--parchment-dim); font-family: var(--body); font-size: 13px; letter-spacing: 0.03em; }
.mfig-lbl-edge {
  fill: var(--glow); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
}

/* ---- Trust line ---------------------------------------------------------- */
.trust {
  text-align: center; margin: clamp(30px, 5vw, 52px) auto 0; max-width: 56ch;
  font-size: 0.86rem; color: var(--muted); letter-spacing: 0.01em;
}

/* ---- Hero memoir signature ----------------------------------------------- */
.hero__sign {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--glow-soft);
  margin: 0 0 18px; letter-spacing: 0.01em;
}

/* ---- Timing section ------------------------------------------------------ */
.timing { position: relative; overflow: hidden; text-align: center; }
.timing__glow { top: -12%; opacity: 0.5; }
.timing__inner { position: relative; z-index: 1; max-width: 760px; margin-inline: auto; }
.timing__inner .lede {
  margin: 22px auto 0; max-width: none;
  font-family: var(--serif); font-style: italic; font-weight: 300; color: var(--parchment);
  font-size: clamp(1.2rem, 2.6vw, 1.7rem); line-height: 1.42;
}
.timing__inner .subtle { margin-top: 24px; }

/* ---- The road ahead (research teaser) ------------------------------------ */
.ahead {
  position: relative; overflow: hidden;
  background: linear-gradient(to bottom, var(--night-deep), var(--night));
  border-block: 1px solid var(--line);
}
/* aqua-tinted glow to harmonize with the cyan topology render */
.ahead__glow {
  top: -8%; opacity: 0.55;
  background: radial-gradient(circle at center,
              rgba(102, 224, 237, 0.20) 0%, rgba(102, 224, 237, 0.07) 40%, transparent 70%);
}
.ahead__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
@media (max-width: 860px) {
  .ahead__grid { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}
.ahead__copy { max-width: 56ch; }
.ahead__copy .lede { margin-top: 22px; }
.ahead__copy .subtle { margin-top: 18px; font-size: 1.02rem; }
.ahead__tag { margin-top: 22px; font-size: 0.82rem; letter-spacing: 0.02em; }
.ahead__device { margin: 0 auto; width: min(300px, 72vw); }

/* ---- The science / measured section -------------------------------------- */
.science { position: relative; }
.sci__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.sci-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: clamp(40px, 5vw, 60px); padding-top: clamp(30px, 4vw, 44px);
  border-top: 1px solid var(--line);
}
@media (max-width: 600px) { .sci-stats { grid-template-columns: repeat(2, 1fr); gap: 28px 18px; } }
.sci-stat { text-align: center; }
.sci-stat__n {
  display: block; font-family: var(--serif); font-weight: 300;
  font-size: clamp(1.9rem, 4vw, 2.7rem); color: var(--glow); line-height: 1;
}
.sci-stat__l {
  display: block; margin-top: 9px; font-size: 0.78rem; letter-spacing: 0.04em;
  color: var(--parchment-dim);
}
.sci-footnote {
  max-width: 66ch; margin: 30px auto 0; text-align: center;
  font-size: 0.78rem; line-height: 1.6; color: var(--muted);
}
.sci-footnote em { font-style: italic; color: var(--parchment-dim); }
.fn { color: var(--glow); font-weight: 600; }

/* ==========================================================================
   LEGAL / PROSE PAGES (privacy, terms)
   ========================================================================== */
.legal { padding-block: clamp(44px, 7vw, 84px); position: relative; }
.legal__wrap { max-width: 748px; }
.legal__back { margin: 0 0 26px; font-size: 0.9rem; }
.legal__back a { color: var(--parchment-dim); }
.legal__back a:hover { color: var(--glow); opacity: 1; }

.legal__head {
  margin-bottom: clamp(30px, 4vw, 46px);
  padding-bottom: clamp(22px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}
.legal__title {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(2rem, 4.6vw, 3.1rem); letter-spacing: -0.012em; margin: 10px 0 0;
}
.legal__meta { margin-top: 18px; font-size: 0.85rem; color: var(--muted); }
.legal__meta strong { color: var(--parchment-dim); font-weight: 500; }
.legal__intro { margin-top: 20px; font-size: 1.04rem; color: var(--parchment-dim); }

.legal-body { font-size: 1rem; }
.legal-body > section { scroll-margin-top: 84px; }
.legal-body h2 {
  font-family: var(--serif); font-weight: 400; font-size: 1.42rem; color: var(--parchment);
  margin: 2.3em 0 0.55em; line-height: 1.2;
}
.legal-body h2:first-child, .legal-body > section:first-child h2 { margin-top: 0; }
.legal-body h3 {
  font-family: var(--body); font-weight: 600; font-size: 0.98rem; color: var(--parchment);
  margin: 1.6em 0 0.4em; letter-spacing: 0.01em;
}
.legal-body p { color: var(--parchment-dim); margin: 0 0 1.05em; }
.legal-body ul { margin: 0 0 1.25em; padding-left: 0; list-style: none; }
.legal-body li { position: relative; padding-left: 22px; margin-bottom: 9px; color: var(--parchment-dim); }
.legal-body li::before {
  content: ""; position: absolute; left: 4px; top: 0.62em;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--glow); box-shadow: 0 0 8px 0 var(--glow);
}
.legal-body strong { color: var(--parchment); font-weight: 600; }

/* Highlighted disclaimer / important block */
.legal-callout {
  margin: 1.5em 0; padding: 20px 24px;
  border: 1px solid rgba(236, 199, 126, 0.32); border-radius: 14px;
  background: rgba(236, 199, 126, 0.06);
}
.legal-callout p:last-child { margin-bottom: 0; }
.legal-callout .legal-callout__label {
  font-family: var(--body); font-weight: 500; font-size: 0.7rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--glow); margin: 0 0 8px;
}

.legal__footnav {
  margin-top: clamp(38px, 5vw, 56px); padding-top: 26px; border-top: 1px solid var(--line);
  display: flex; gap: 24px; flex-wrap: wrap; font-size: 0.92rem;
}

/* ---- FAQ accordion (native <details>, no JS) ----------------------------- */
.faq-group { margin: 0 0 clamp(30px, 4vw, 46px); }
.faq-group > .eyebrow { margin-bottom: 4px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-group .faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item > summary {
  cursor: pointer; list-style: none; padding: 20px 0;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 20px;
  font-family: var(--serif); font-weight: 400; font-size: 1.14rem; color: var(--parchment);
  transition: color 0.2s ease;
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary:hover { color: var(--glow); }
.faq-item > summary::after {
  content: "+"; flex: none; font-family: var(--body); font-weight: 400; font-size: 1.5rem;
  line-height: 1; color: var(--glow); margin-top: 2px;
}
.faq-item[open] > summary::after { content: "\2013"; }  /* en dash */
.faq-item__body { padding: 0 0 22px; max-width: 62ch; }
.faq-item__body p { color: var(--parchment-dim); margin: 0 0 0.85em; }
.faq-item__body p:last-child { margin-bottom: 0; }
.faq-item__body a { color: var(--glow); }
@media (prefers-reduced-motion: no-preference) {
  .faq-item[open] .faq-item__body { animation: faq-in 0.28s ease both; }
}
@keyframes faq-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ---- About page pillars -------------------------------------------------- */
.about-pillars { margin: 1.4em 0 0.4em; }
.about-pillars .card { padding: clamp(18px, 2.2vw, 24px); }
.about-pillars .h-card { font-size: 1.14rem; margin-bottom: 6px; }
.about-pillars .subtle { font-size: 0.95rem; margin: 0; }

/* ---- Footer -------------------------------------------------------------- */
.footer { border-top: 1px solid var(--line); padding-block: 46px; }
.footer__links a { color: var(--parchment-dim); }
.footer__links a:hover { color: var(--glow); opacity: 1; }
.footer__inner { display: flex; flex-direction: column; gap: 12px; align-items: center; text-align: center; }
.footer__brand { display: inline-flex; align-items: center; gap: 10px; }
.footer__tag { margin: 2px 0 0; }
.footer__links { margin: 6px 0 0; font-size: 0.9rem; }
.footer__legal { font-size: 0.78rem; max-width: 60ch; line-height: 1.6; margin: 6px 0 0; }
.footer__company { font-size: 0.9rem; }
.footer__copyright { font-size: 0.72rem; max-width: 62ch; line-height: 1.6; }