/* ===================================================================
   KEHAI v2 — Stone / Dune
   Colors corrected to the exact brand-kit hex values (not approximations).
   Stone:  bg #1C1E21 · mid #5A6070 · accent #A8B0BC
   Dune:   bg #C8BFB0 · mid #9C7A58 · accent #6A4E30
=================================================================== */

:root{
  --font-display:'Cormorant Garamond',serif;
  --font-mono:'DM Mono',monospace;
  --font-body:'DM Sans',sans-serif;
  --ease:cubic-bezier(.22,.8,.22,1);
  --radius:26px;
}

html[data-world="stone"]{
  --bg:#1C1E21; --bg2:#24272B; --surface:#2A2D31; --surface2:#313539;
  --ink:#EDEEF0; --soft:#B7BCC4; --accent:#A8B0BC; --accent2:#5A6070;
  --line:rgba(237,238,240,.14); --veil:rgba(28,30,33,.74); --shadow:rgba(0,0,0,.35);
}
html[data-world="sand"]{
  --bg:#C8BFB0; --bg2:#D2C9BA; --surface:#DED6C8; --surface2:#EAE3D6;
  --ink:#2A2016; --soft:#55483A; --accent:#6A4E30; --accent2:#9C7A58;
  --line:rgba(42,32,22,.16); --veil:rgba(200,191,176,.74); --shadow:rgba(48,38,25,.16);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;line-height:1.6;overflow-x:hidden;transition:background .7s var(--ease),color .7s var(--ease)}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto}
button{font:inherit;color:inherit}

.grain{position:fixed;inset:0;pointer-events:none;z-index:999;opacity:.045;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E")}

.eyebrow{font-family:var(--font-mono);font-size:10px;letter-spacing:.23em;text-transform:uppercase;color:var(--accent)}

/* ---------- nav ---------- */
.topnav{position:fixed;top:0;left:0;right:0;z-index:50;height:72px;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;background:color-mix(in srgb,var(--bg) 74%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.topnav-mark{font-family:var(--font-display);font-style:italic;font-size:24px}
.topnav-links{display:flex;gap:26px;align-items:center;font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--soft)}
.topnav-links a:hover{color:var(--ink)}
.topnav-cta{border:1px solid var(--line);border-radius:999px;padding:8px 14px}
.nav-world-toggle{
  display:grid; place-items:center;
  width:30px; height:30px; min-width:30px;
  border:0; border-radius:50%;
  background:transparent;
  cursor:pointer;
}
.nav-world-toggle-disc{
  width:18px; height:18px; border-radius:50%;
  border:1px solid var(--line);
  background:radial-gradient(circle at 35% 30%, #E4D3B8, #9C7A58 55%, #6A4E30 100%);
  box-shadow:none;
  transition: background .35s var(--ease), border-color .35s var(--ease);
}
html[data-world="stone"] .nav-world-toggle-disc{
  transform:none;
  background:radial-gradient(circle at 35% 30%, #C6CBD2, #5A6070 55%, #1C1E21 100%);
}
@media (max-width:720px){ .topnav-links a:not(.topnav-cta){display:none} }

/* ---------- hero ---------- */
.hero{min-height:100svh;position:relative;display:grid;place-items:center;text-align:center;padding:120px 6vw 90px;overflow:hidden}
.hero-orb-field{position:absolute;inset:0;display:grid;place-items:center}
.orb{width:min(62vw,680px);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 34% 30%,var(--accent2),var(--accent) 34%,var(--bg) 73%);filter:blur(2px);opacity:.48;animation:breathe 9s ease-in-out infinite}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero-eyebrow-kanji{font-family:var(--font-mono);font-size:11px;letter-spacing:.34em;color:var(--soft);margin-bottom:22px}
.hero-wordmark{font-family:var(--font-display);font-size:clamp(72px,13vw,140px);font-weight:300;line-height:.86;letter-spacing:-.025em}
.hero-phrase-wrap{min-height:56px;display:grid;place-items:center;margin:22px 0 10px}
.hero-tagline{font-family:var(--font-display);font-size:clamp(24px,3.4vw,38px);font-style:italic;font-weight:300;line-height:1.15;transition:opacity .35s,transform .35s}
.hero-tagline.is-changing{opacity:0;transform:translateY(7px)}
.hero-sub{max-width:560px;margin:0 auto;color:var(--soft);font-size:15px}
.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:999px;font-size:13px;transition:transform .25s,border-color .25s,background .25s}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--accent);color:var(--bg);font-weight:500}
html[data-world="stone"] .btn--primary{color:#15171A}
.btn--ghost{border:1px solid var(--line)}
.btn--large{padding:16px 38px}
.hero-scroll{position:absolute;z-index:2;bottom:26px;font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
@keyframes breathe{50%{transform:scale(1.055);opacity:.62}}

/* ---------- manifesto ---------- */
.manifesto{border-top:1px solid var(--line);padding:130px 6vw 110px}
.manifesto-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1.05fr .95fr;gap:8vw;align-items:center}
.manifesto-copy h2,.section-head h2,.visual-grammar-copy h2,.ai-copy h2,.get h2{font-family:var(--font-display);font-weight:300;line-height:1.08;letter-spacing:-.015em}
.manifesto-copy h2{font-size:clamp(38px,5.4vw,62px);margin:16px 0 26px}
.manifesto-copy h2 em,.section-head h2 em,.meaning-band h2 em{color:var(--accent);font-weight:300;font-style:italic}
.manifesto-lede{font-family:var(--font-display);font-size:clamp(20px,2.3vw,27px);line-height:1.32;margin-bottom:30px}
.manifesto-body{color:var(--soft);max-width:600px}
.manifesto-body p{margin:0 0 16px}
.manifesto-body strong{color:var(--ink);font-weight:500}
.text-link{display:inline-flex;gap:10px;align-items:center;margin-top:22px;font-family:var(--font-mono);font-size:10px;letter-spacing:.15em;text-transform:uppercase;border-bottom:1px solid var(--line);padding-bottom:6px}
.text-link span{font-size:15px}
.manifesto-art img{max-height:680px;object-fit:cover;object-position:center;border-radius:3px;filter:saturate(.82) contrast(.98)}
.manifesto-art figcaption,.visual-card figcaption{font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;color:var(--soft);margin-top:10px}
.founder-line{max-width:880px;margin:100px auto 0;text-align:center;font-family:var(--font-display);font-size:clamp(26px,3.6vw,42px);font-style:italic;line-height:1.28}
.founder-line small{display:block;margin-top:16px;font-family:var(--font-mono);font-style:normal;font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:var(--soft)}
@media (max-width:900px){ .manifesto-grid{grid-template-columns:1fr} .manifesto-art{max-width:520px;margin:0 auto} }

/* ---------- meaning band ---------- */
.meaning-band{
  display:grid;
  grid-template-columns:340px 1fr;
  column-gap:70px;
  row-gap:0;
  align-items:center;
  margin:0;
  padding:100px max(24px,8vw);
  text-align:left;
  background:#C6BEAE;
}
.meaning-band-figure{
  grid-column:1;
  grid-row:1;
  align-self:end;
  justify-self:center;
  margin:0;
  width:100%;
  max-width:340px;
  pointer-events:none;
  background:transparent;
}
.meaning-band-figure img{
  width:100%;
  height:auto;
  display:block;
  object-fit:contain;
  object-position:center bottom;
}
.meaning-copy{
  grid-column:2;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.meaning-band .meaning-eyebrow{
  display:flex;
  align-items:baseline;
  gap:8px;
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:300;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:#6A4E30;
}
.meaning-band .meaning-eyebrow-dot{opacity:.4}
.meaning-band .meaning-eyebrow em{
  font-family:var(--font-display);
  font-style:italic;
  font-weight:300;
  font-size:14px;
  letter-spacing:.02em;
  text-transform:none;
  color:rgba(60,44,28,.55);
}
.meaning-band .meaning-gloss{
  font-family:var(--font-display);
  font-style:italic;
  font-weight:300;
  font-size:15px;
  line-height:1.5;
  color:rgba(60,44,28,.6);
  max-width:460px;
  margin:-4px 0 22px;
}
.meaning-band h2{
  font-family:var(--font-display);
  font-weight:400;
  font-size:46px;
  line-height:1.15;
  margin:0 0 22px;
  max-width:620px;
  color:#3C2C1C;
}
.meaning-band h2 em{color:#6A4E30;font-weight:400;font-style:italic}
.meaning-copy>p:last-child{
  max-width:520px;
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.7;
  color:rgba(60,44,28,.72);
  margin:0;
}
@media (max-width:900px){
  .meaning-band{
    grid-template-columns:1fr;
    column-gap:0;
    row-gap:32px;
    padding:80px 24px;
  }
  .meaning-band-figure{
    grid-column:1;
    grid-row:1;
    max-width:min(280px,72vw);
    align-self:center;
  }
  .meaning-copy{grid-column:1;grid-row:2}
  .meaning-band h2{font-size:clamp(32px,8vw,34px)}
}

/* ---------- lens demo (interactive body / day / context) ---------- */
.lens-section{padding:130px 6vw}
.lens-intro{
  max-width:1180px;
  margin:0 auto 64px;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:clamp(28px,6vw,72px);
  align-items:center;
}
.lens-intro .section-head--lens{margin:0;max-width:none;text-align:left}
.lens-intro-art{margin:0;display:flex;justify-content:flex-start}
.lens-intro-plates{
  position:relative;
  display:inline-block;
  max-width:100%;
  line-height:0;
  background:transparent;
}
.lens-intro-plate{
  display:block;
  max-width:min(440px,100%);
  max-height:min(560px,72vh);
  width:auto;
  height:auto;
  object-fit:contain;
  object-position:center center;
  opacity:0;
  transition:opacity .5s var(--ease);
}
.lens-intro-plate:not(.is-active){position:absolute;top:0;left:0}
.lens-intro-plate.is-active{position:relative;opacity:1}
.section-head{max-width:820px;margin:0 auto 60px}
.section-head h2{font-size:clamp(36px,4.6vw,54px);margin:16px 0}
.section-head>p:last-child{max-width:680px;color:var(--soft)}
.section-head--center{text-align:center}
.section-head--center>p:last-child{margin-left:auto;margin-right:auto}
.lens-principles{max-width:1020px;margin:64px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.principle{border-top:1px solid var(--line);padding-top:20px}
.principle span{font-family:var(--font-mono);font-size:9px;color:var(--accent)}
.principle h3{font-family:var(--font-display);font-size:23px;font-weight:400;margin:9px 0}
.principle p{color:var(--soft);font-size:14px}
@media (max-width:900px){
  .lens-intro{grid-template-columns:1fr;gap:36px}
  .lens-intro-art{max-width:360px;margin:0 auto;justify-content:center}
  .lens-intro-plate{max-height:380px}
  .lens-intro .section-head--lens{text-align:left}
  .lens-principles{grid-template-columns:1fr}
}
@media (max-width:560px){
  .lens-intro{gap:28px}
  .lens-intro-art{max-width:240px;margin:0;justify-content:flex-start}
  .lens-intro-plate{max-height:280px}
}

/* ---------- visual grammar ---------- */
.visual-grammar{padding:110px 6vw;background:var(--bg2)}
.visual-grammar-copy{max-width:740px;margin:0 auto 54px}
.visual-grammar-copy h2{font-size:clamp(36px,4.4vw,56px);margin:14px 0}
.visual-grammar-copy p:last-child{color:var(--soft);max-width:640px}
.visual-pair{max-width:1160px;margin:auto;display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:end}
.visual-card img{height:680px;object-fit:cover}
.visual-card--anatomy img{object-position:center top}
.visual-card figcaption{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.visual-card figcaption b{color:var(--ink);font-weight:500}
@media (max-width:900px){ .visual-pair{grid-template-columns:1fr} .visual-card img{height:auto;max-height:680px} }

/* ---------- product gallery (real screenshots) ---------- */
.product-section{padding:130px 4vw;overflow:hidden}
.product-gallery{max-width:1160px;margin:auto;display:flex;justify-content:center;align-items:flex-start;gap:clamp(10px,2vw,28px)}
.phone-shot{width:min(28vw,320px);border-radius:36px;overflow:hidden;background:#111;box-shadow:0 30px 65px var(--shadow);border:1px solid var(--line);transform-origin:center}
.phone-shot img{aspect-ratio:700/1522;object-fit:cover}
.phone-shot figcaption{background:var(--surface);padding:12px 15px;font-family:var(--font-mono);font-size:8px;letter-spacing:.13em;color:var(--soft)}
.phone-shot--front{transform:translateY(-26px);width:min(31vw,352px);z-index:2}
.phone-shot--back{opacity:.9}
@media (max-width:900px){
  .product-gallery{overflow-x:auto;justify-content:flex-start;padding:16px 8vw 40px;scroll-snap-type:x mandatory}
  .phone-shot,.phone-shot--front{flex:0 0 72vw;width:72vw;max-width:320px;transform:none;scroll-snap-align:center}
}

/* ---------- AI section ---------- */
.ai-section{display:grid;grid-template-columns:1fr 1fr;min-height:720px;background:#111;color:#eee}
.ai-art img{height:100%;object-fit:cover;object-position:center}
.ai-copy{padding:10vw 7vw;align-self:center}
.ai-copy .eyebrow{color:#b9aea0}
.ai-copy h2{font-family:var(--font-display);font-weight:300;font-size:clamp(36px,4.4vw,54px);margin:16px 0}
.ai-copy blockquote{font-family:var(--font-display);font-size:clamp(22px,2.7vw,30px);line-height:1.35;margin-bottom:20px}
.ai-copy blockquote em{color:#c3aa8c;font-style:italic}
.ai-copy>p:last-of-type{color:#bbb}
.quiet-prompts{margin-top:30px;display:flex;gap:8px;flex-wrap:wrap}
.quiet-prompts span{border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:8px 12px;font-size:11px;color:#c9c9c9}
@media (max-width:900px){ .ai-section{grid-template-columns:1fr} .ai-art{max-height:520px} .ai-copy{padding:70px 8vw} }

/* ---------- worlds ---------- */
.worlds{padding:120px 6vw}
.world-switcher{max-width:600px;margin:42px auto 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.world-btn{border:1px solid var(--line);background:var(--surface);border-radius:24px;padding:26px 18px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:10px}
.world-btn[aria-pressed="true"]{border-color:var(--accent)}
.world-btn b{font-family:var(--font-display);font-size:24px;font-weight:400}
.world-btn small{font-family:var(--font-mono);font-size:8px;letter-spacing:.1em;color:var(--soft)}
.world-orb{width:68px;aspect-ratio:1;border-radius:50%;display:block}
.world-orb--stone{background:radial-gradient(circle at 35% 30%,#C6CBD2,#5A6070 55%,#1C1E21 100%)}
.world-orb--sand{background:radial-gradient(circle at 35% 30%,#E4D3B8,#9C7A58 55%,#6A4E30 100%)}

/* ---------- get / footer ---------- */
.get{text-align:center;padding:110px 6vw 130px;background:var(--bg2);border-top:1px solid var(--line)}
.get h2{font-size:clamp(44px,6.4vw,76px);margin:12px 0 22px}
.disclaimer{max-width:480px;margin:22px auto 0;font-size:11px;color:var(--soft)}
.footer{text-align:center;padding:56px 6vw;border-top:1px solid var(--line)}
.footer-mark{font-family:var(--font-display);font-style:italic;font-size:28px}
.footer>p{font-family:var(--font-display);font-style:italic;color:var(--soft);margin:5px 0 18px}
.footer nav{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;font-family:var(--font-mono);font-size:9px;letter-spacing:.11em;text-transform:uppercase;color:var(--soft)}
.footer small{display:block;margin-top:24px;font-size:10px;color:var(--soft);opacity:.65}
.footer small a{opacity:1;text-decoration:underline;text-underline-offset:2px}
.footer small a:hover{color:var(--accent)}

/* ---------- origin page shared ---------- */
.origin-hero{min-height:66svh;overflow:visible}
.origin-hero .hero-orb-field{overflow:visible}
.origin-hero .orb{
  width:min(30vw,380px);
  filter:blur(22px);
  opacity:.34;
  background:radial-gradient(circle at 50% 46%,color-mix(in srgb,var(--accent) 58%,transparent) 0%,color-mix(in srgb,var(--accent2) 34%,transparent) 24%,transparent 64%);
  -webkit-mask-image:radial-gradient(circle,#000 36%,transparent 74%);
  mask-image:radial-gradient(circle,#000 36%,transparent 74%);
}
html[data-world="stone"] .origin-hero .orb{opacity:.38}
.origin-body{max-width:600px;margin:0 auto;padding:10px 6vw 50px;position:relative}
.origin-chapter{padding:34px 0}
.origin-chapter p{font-size:16px;color:var(--soft);margin-bottom:16px}
.origin-chapter p:last-child{margin-bottom:0}
.origin-stanza p{margin-bottom:4px}
.origin-emphasis{color:var(--ink)}
.origin-rule{height:1px;background:var(--line);max-width:600px;margin:0 auto}
.origin-pull{font-family:var(--font-display)!important;font-style:italic;font-weight:300;font-size:clamp(20px,2.8vw,28px);line-height:1.4;color:var(--ink);text-align:center;max-width:540px;margin:76px auto;padding:0 6vw}
.origin-signoff{max-width:600px;margin:60px auto 30px;padding:0 6vw;text-align:right}
.origin-signoff p{font-family:var(--font-display);font-style:italic;font-size:19px;color:var(--soft)}
.origin-back{display:block;text-align:center;padding:16px 0 70px;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--soft)}
.origin-back:hover{color:var(--accent)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:1;transform:none}
.reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .orb{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  .hero-tagline{transition:none}
}


/* ===================================================================
   KEHAI APP DEMO — live interactive recreation of Home / Signals / Composition / Ledger
   Scoped under .kehai-app; safe alongside the rest of the site's CSS.
   =================================================================== */

/* ===================================================================
   KEHAI — Home / Composition / Ledger
   Fonts: Cormorant Garamond (display) · DM Mono (metadata) · DM Sans (body)
   Palette: Sand world — background.app #C8BFB0 / accent #6A4E30
   This block is scoped under .kehai-app so it can be dropped into an
   existing page without leaking styles onto the rest of the site.
   =================================================================== */
.kehai-app{
  --sand-bg: #C8BFB0;
  --sand-mid: #9C7A58;
  --sand-accent: #6A4E30;

  --surface: #F2EEE4;
  --surface-alt: #E9E3D5;
  --surface-deep: #DCD4C2;

  --ink: #2C2418;
  --ink-muted: #6E6252;
  --ink-faint: #A69A87;

  --hairline: rgba(44,36,24,0.14);
  --hairline-soft: rgba(44,36,24,0.08);

  --health-color: #6A4E30;
  --scale-color: #94433B;
  --calc-color: #7A7156;
  --manual-color: #4E6A63;
  --focus-ring: #94433B;

  --font-display: 'Cormorant Garamond', serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'DM Sans', sans-serif;

  --dur-fast: 160ms;
  --dur-med: 280ms;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  font-family: var(--font-body);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
.kehai-app[data-theme="dark"]{
  /* true brand Stone palette, not a generic dark mode */
  --sand-bg: #1C1E21;
  --sand-mid: #5A6070;
  --sand-accent: #A8B0BC;
  --surface: #24272B;
  --surface-alt: #2A2D31;
  --surface-deep: #313539;
  --ink: #EDEEF0;
  --ink-muted: #B7BCC4;
  --ink-faint: #7B818C;
  --hairline: rgba(237,238,240,0.14);
  --hairline-soft: rgba(237,238,240,0.08);
  --health-color: #A8B0BC;
  --scale-color: #C1A1A0;
  --calc-color: #9CA6A0;
  --manual-color: #8FAAA0;
  --focus-ring: #A8B0BC;
}
.kehai-app *{ box-sizing: border-box; margin:0; padding:0; }
.kehai-app button{ font-family: inherit; cursor: pointer; }
.kehai-app :focus-visible{ outline: 2px solid var(--focus-ring); outline-offset: 2px; border-radius: 4px; }

/* ---------- demo chrome (safe to delete when embedding) ---------- */
.kehai-demo-shell{
  min-height: 100vh;
  background: #0f0d0a;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 40px 16px 60px;
}
.kehai-demo-switch{
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: rgba(242,238,228,0.1);
  border: 1px solid rgba(242,238,228,0.14);
}
.kehai-demo-switch button{
  border: 0;
  background: transparent;
  color: #C8BFB0;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 9px 14px;
  border-radius: 8px;
}
.kehai-demo-switch button.active{ background: #6A4E30; color: #F2EEE4; }

/* ---------- phone frame (drop your real .phone-frame here instead) ---------- */
.kehai-app .phone-frame{
  width: 390px;
  height: 844px;
  border-radius: 48px;
  background: var(--sand-bg);
  border: 1px solid rgba(0,0,0,0.35);
  box-shadow: 0 50px 100px rgba(0,0,0,0.55), inset 0 0 0 2px rgba(255,255,255,0.06);
  overflow: hidden;
  position: relative;
}
.kehai-app .phone-screen-scroll{
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.kehai-app .screen{
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow-y: auto;
  padding-bottom: 96px;
  background: var(--sand-bg);
}
.kehai-app .screen::-webkit-scrollbar{ display:none; }
.kehai-app .screen[hidden]{ display:none; }

/* subtle grain overlay */
.kehai-app .grain{ position: relative; }
.kehai-app .grain::after{
  content:"";
  position:absolute; inset:0;
  pointer-events:none;
  opacity:0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- status row / theme toggle ---------- */
.kehai-app .status-row{
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 18px 26px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}
.kehai-app .status-row > :first-child{ justify-self: start; }
.kehai-app .status-row > :nth-child(2){ justify-self: center; visibility: hidden; }
.kehai-app .theme-toggle{
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  width: auto; min-width: 0; height: 34px;
  border: 0; border-radius: 17px;
  padding: 0 6px 0 10px;
  background: transparent;
}
.kehai-app .theme-toggle-label{
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.kehai-app .theme-toggle-disc{
  width: 20px; height: 20px;
  display: block;
  border-radius: 50%;
  border: 1px solid rgba(44,36,24,0.3);
  background: linear-gradient(90deg, #F2EEE4 0 50%, #262421 50% 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.18);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.kehai-app .theme-toggle[aria-pressed="true"] .theme-toggle-disc{
  transform: rotate(180deg);
  border-color: rgba(240,233,222,0.34);
}

.kehai-app .eyebrow{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- bottom nav ---------- */
.kehai-app .bottom-nav{
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 88px;
  background: var(--surface);
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  align-items: flex-start;
  padding-top: 10px;
  z-index: 10;
}
.kehai-app .nav-item{
  flex: 1;
  min-height: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 5px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.kehai-app .nav-item[type="button"]{ border: 0; background: none; padding: 5px 0 0; }
.kehai-app .nav-item.active{ color: var(--sand-accent); }
.kehai-app .nav-item svg{
  width: 19px; height: 19px;
  fill: none; stroke: currentColor;
  stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round;
}
.kehai-app .nav-item span{ display: block; font: inherit; line-height: 1; }

/* ===================================================================
   HOME
   =================================================================== */
.kehai-app .home-header{ padding: 50px 26px 0; }
.kehai-app .home-header h2{
  margin-top: 6px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: 34px;
  letter-spacing: 0.005em;
  color: var(--ink);
}
.kehai-app .home-header p{
  margin-top: 8px;
  max-width: 31ch;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-muted);
}
.kehai-app .home-section{ padding: 26px 26px 0; }
.kehai-app .home-air-section{ padding: 24px 26px 0; }
.kehai-app .home-section-head{ display:flex; align-items:center; justify-content: space-between; gap: 12px; }
.kehai-app .home-section h3{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .19em;
  font-weight: 400;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.kehai-app .home-text-button{
  min-height: 34px;
  border: 0; background: none;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .06em;
}

.kehai-app .home-air-card{
  position: relative;
  display: grid;
  grid-template-columns: 126px 1fr;
  column-gap: 15px;
  margin-top: 12px;
  padding: 16px 15px 42px;
  overflow: hidden;
  border: 1px solid var(--hairline-soft);
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
}
.kehai-app .home-air-card::after{
  content:"";
  position:absolute; left:15px; right:15px; bottom:32px; height:1px;
  background:var(--hairline-soft);
}
.kehai-app .home-air-ring{ position:relative; width:118px; height:118px; align-self:center; }
.kehai-app .home-air-ring-svg{ width:118px; height:118px; transform:rotate(-90deg); }
.kehai-app .home-air-ring-base,
.kehai-app .home-air-ring-progress{ fill:none; stroke-width:2.2px; }
.kehai-app .home-air-ring-base{ stroke:var(--hairline); }
.kehai-app .home-air-ring-progress{
  stroke:var(--health-color);
  stroke-linecap:round;
  stroke-dasharray:371;
  stroke-dashoffset:230;
}
.kehai-app .home-air-ring-copy{
  position:absolute; inset:0;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
}
.kehai-app .home-air-ring-copy strong{
  font-family:var(--font-display); font-size:35px; font-weight:300; line-height:.86; color:var(--ink);
}
.kehai-app .home-air-ring-copy span{
  margin-top:5px; font-family:var(--font-mono); font-size:8px; letter-spacing:.14em; color:var(--ink-faint);
}
.kehai-app .home-air-copy{ min-width:0; align-self:center; }
.kehai-app .home-air-copy h4{
  margin-top:6px; font-family:var(--font-display); font-size:22px; font-weight:300; line-height:1; font-style: italic; color:var(--ink);
}
.kehai-app .home-air-copy p{ margin-top:8px; font-size:11px; line-height:1.45; color:var(--ink-muted); }
.kehai-app .home-air-details{ display:flex; gap:16px; margin-top:12px; }
.kehai-app .home-air-details dt{
  font-family:var(--font-mono); font-size:8px; letter-spacing:.09em; text-transform:uppercase; color:var(--ink-faint);
}
.kehai-app .home-air-details dd{ margin-top:3px; font-family:var(--font-mono); font-size:9px; color:var(--ink-muted); }
.kehai-app .home-air-source{
  position:absolute; right:15px; bottom:13px; left:15px;
  display:flex; gap:5px; overflow:hidden; white-space:nowrap;
  font-family:var(--font-mono); font-size:8px; letter-spacing:.025em; color:var(--ink-faint);
}
.kehai-app .home-air-location-rail{ display:grid; grid-template-columns:repeat(3, 1fr); gap:7px; margin-top:9px; }
.kehai-app .home-air-location{
  min-height:76px; padding:10px 9px;
  border:1px solid var(--hairline-soft); border-radius:14px;
  background:color-mix(in srgb, var(--surface) 63%, transparent);
  color:var(--ink-muted); text-align:left;
}
.kehai-app .home-air-location.active{ border-color:var(--hairline); background:var(--surface); color:var(--ink); }
.kehai-app .home-air-location span,
.kehai-app .home-air-location strong,
.kehai-app .home-air-location small{ display:block; }
.kehai-app .home-air-location span,
.kehai-app .home-air-location small{ font-family:var(--font-mono); font-size:8px; letter-spacing:.06em; color:var(--ink-faint); }
.kehai-app .home-air-location strong{ margin-top:6px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:12px; font-weight:500; }
.kehai-app .home-air-location small{ margin-top:3px; }

.kehai-app .home-record-orbits{ display:flex; gap:8px; margin-top:12px; overflow-x:auto; scrollbar-width:none; }
.kehai-app .home-record-orbits::-webkit-scrollbar{ display:none; }
.kehai-app .home-record-orbit{
  width:104px; min-width:104px; height:104px;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:11px 8px;
  border:1px solid var(--hairline-soft); border-radius:50%;
  background:color-mix(in srgb, var(--surface) 82%, transparent);
  color:var(--ink); text-align:center;
}
.kehai-app .home-record-orbit--weight{ border-color:color-mix(in srgb, var(--scale-color) 32%, var(--hairline-soft)); }
.kehai-app .home-record-icon{ width:21px; height:21px; display:grid; place-items:center; color: var(--sand-accent); }
.kehai-app .home-record-icon svg{ width:17px; height:17px; fill:none; stroke:currentColor; stroke-width:1.25; stroke-linecap:round; stroke-linejoin:round; }
.kehai-app .home-record-value{ display:block; margin-top:5px; font-family:var(--font-display); font-size:20px; font-weight:400; line-height:1; color:var(--ink); }
.kehai-app .home-record-value small{ font-family:var(--font-mono); font-size:8px; color:var(--ink-muted); }
.kehai-app .home-record-label{ display:block; margin-top:3px; font-family:var(--font-mono); font-size:8px; letter-spacing:.05em; color:var(--ink-muted); }
.kehai-app .home-record-meta{ display:block; margin-top:3px; font-family:var(--font-mono); font-size:7px; line-height:1.35; color:var(--ink-faint); white-space:nowrap; }

.kehai-app .home-notice{
  position: relative;
  margin-top: 12px;
  padding: 17px 16px 16px 24px;
  border: 1px solid var(--hairline-soft);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 64%, transparent);
}
.kehai-app .home-notice-mark{
  position: absolute; top: 20px; left: 13px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--scale-color);
}
.kehai-app .home-notice p{ font-family: var(--font-display); font-size: 18px; line-height: 1.2; color: var(--ink); }
.kehai-app .home-notice > span:last-child{
  display: block; margin-top: 9px;
  font-family: var(--font-mono); font-size: 8px; line-height: 1.5; letter-spacing: .03em;
  color: var(--ink-faint);
}
.kehai-app .home-memory-section{ padding-bottom: 16px; }
.kehai-app .home-memory-row{
  width: 100%; min-height: 58px; margin-top: 12px;
  padding: 11px 12px; gap: 10px;
  display:flex; align-items:center;
  border: 1px solid var(--hairline-soft); border-radius: 14px;
  background: var(--surface); color: var(--ink); text-align: left;
}
.kehai-app .home-memory-row > span:nth-child(2){ flex: 1; }
.kehai-app .home-memory-icon{ width:26px; height:26px; display:grid; place-items:center; color: var(--sand-accent); }
.kehai-app .home-memory-icon svg{ width:19px; height:19px; fill:none; stroke:currentColor; stroke-width:1.25; stroke-linecap:round; stroke-linejoin:round; }
.kehai-app .home-memory-row strong{ display:block; font-family: var(--font-body); font-size: 12px; font-weight: 500; }
.kehai-app .home-memory-row small{ display:block; margin-top: 3px; font-family: var(--font-mono); font-size: 8px; line-height: 1.35; letter-spacing: .03em; color: var(--ink-faint); }

/* ===================================================================
   TRENDS · COMPOSITION / LEDGER
   =================================================================== */
.kehai-app .trends-screen{ background: var(--sand-bg); padding-bottom: 108px; }
.kehai-app .weight-view-toggle{
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  margin: 32px 26px 0; padding: 4px;
  border: 1px solid var(--hairline); border-radius: 12px;
  background: rgba(242,238,228,0.34);
}
.kehai-app .weight-view-button{
  min-height: 40px; border: 0; border-radius: 8px; background: transparent;
  color: var(--ink-faint);
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.kehai-app .weight-view-button.active{ background: var(--sand-accent); color: var(--surface); }

.kehai-app .composition-header{ padding: 20px 26px 0; }
.kehai-app .composition-header h2{
  margin-top: 7px; color: var(--ink);
  font-family: var(--font-display); font-size: 34px; line-height: 1; font-weight: 300; font-style: italic;
}
.kehai-app .composition-header p{
  margin-top: 6px; color: var(--ink-muted);
  font-family: var(--font-display); font-size: 15px; font-style: italic;
}
.kehai-app .weight-composition-figure{ position: relative; width: 322px; height: 310px; margin: 13px auto 0; }
.kehai-app .weight-composition-figure > img{
  display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 20%;
  border-radius: 5px;
  filter: sepia(0.25) saturate(0.86) brightness(0.98) contrast(1.03);
  opacity: 0.86;
  -webkit-mask-image: linear-gradient(to bottom, black 82%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 82%, transparent 100%);
}
.kehai-app .composition-veil{
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle at 48% 39%, rgba(200,191,176,0) 27%, rgba(200,191,176,0.1) 61%, rgba(200,191,176,0.35) 100%),
    linear-gradient(to bottom, rgba(242,238,228,0.01), rgba(200,191,176,0.2));
}
.kehai-app .composition-pin{
  position: absolute; z-index: 2;
  display: flex; align-items: center; gap: 6px;
  width: auto; min-height: 44px; border: 0; background: none; padding: 0;
  text-align: left; -webkit-tap-highlight-color: transparent;
}
.kehai-app .composition-pin--left{ left: 0; }
.kehai-app .composition-pin--right{ right: 0; flex-direction: row-reverse; text-align: right; }
.kehai-app .composition-pin[data-composition-record="bone"]{ top: 6%; }
.kehai-app .composition-pin[data-composition-record="blood"]{ top: 28%; }
.kehai-app .composition-pin[data-composition-record="fat"]{ top: 49%; }
.kehai-app .composition-pin[data-composition-record="waist"]{ top: 63%; }
.kehai-app .composition-pin[data-composition-record="muscle"]{ top: 75%; }
.kehai-app .composition-pin-dot{
  flex: 0 0 auto; width: 10px; height: 10px; border-radius: 50%;
  background: var(--scale-color);
  box-shadow: 0 0 0 5px rgba(148,67,59,0.16);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.kehai-app .composition-pin--empty .composition-pin-dot{
  background: transparent; border: 1.5px dashed var(--ink-faint); box-shadow: none;
}
.kehai-app .composition-pin-card{
  display: grid; gap: 1px; min-width: 86px; padding: 6px 7px 5px;
  border: 1px solid var(--hairline); border-radius: 8px;
  background: rgba(242,238,228,0.92);
  box-shadow: 0 4px 13px rgba(52,39,22,0.06);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.kehai-app .composition-pin-label{
  color: var(--ink-muted); font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.1em; line-height: 1.15; text-transform: uppercase;
}
.kehai-app .composition-pin-value{ color: var(--ink); font-family: var(--font-display); font-size: 18px; font-weight: 400; line-height: 0.9; }
.kehai-app .composition-pin-value small{ margin-left: 2px; color: var(--ink-muted); font-family: var(--font-body); font-size: 8px; }
.kehai-app .composition-pin:hover .composition-pin-dot,
.kehai-app .composition-pin:focus-visible .composition-pin-dot,
.kehai-app .composition-pin.active .composition-pin-dot{
  transform: scale(1.28); box-shadow: 0 0 0 6px rgba(148,67,59,0.27);
}
.kehai-app .composition-pin.active .composition-pin-card{ border-color: rgba(148,67,59,0.5); background: var(--surface); }
.kehai-app .composition-pin--empty.active .composition-pin-dot{ transform: none; box-shadow: none; }

.kehai-app .composition-record-card{
  margin: 7px 26px 0; padding: 14px 19px 11px;
  border: 1px solid var(--hairline-soft); border-radius: 15px;
  background: rgba(242,238,228,0.7);
}
.kehai-app .composition-record-top{ display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.kehai-app .composition-record-label{
  color: var(--ink-faint); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.16em; text-transform: uppercase;
}
.kehai-app .record-confidence{ display: inline-flex; gap: 3px; }
.kehai-app .record-confidence i{ display: block; width: 4px; height: 4px; border-radius: 50%; background: var(--scale-color); opacity: 0.82; }
.kehai-app .composition-record-value{ margin-top: 7px; color: var(--ink); font-family: var(--font-display); font-size: 40px; font-weight: 300; line-height: 0.9; }
.kehai-app .composition-record-value span{ margin-left: 5px; color: var(--ink-muted); font-family: var(--font-body); font-size: 13px; }
.kehai-app .composition-record-card p{ margin-top: 6px; color: var(--ink-muted); font-family: var(--font-body); font-size: 11.5px; line-height: 1.45; }
.kehai-app .composition-sparkline{ display: block; width: 100%; height: 28px; margin-top: 6px; overflow: visible; }
.kehai-app .composition-sparkline-rule{ stroke: rgba(44,36,24,0.1); stroke-width: 1; }
.kehai-app .composition-sparkline-line{ fill: none; stroke: var(--scale-color); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.kehai-app .composition-open-ledger{
  display: flex; align-items: center; gap: 5px; min-height: 32px; margin-top: 2px;
  border: 0; background: none; color: var(--sand-accent);
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.15em; text-transform: uppercase;
}
.kehai-app .composition-open-ledger span{ font-size: 14px; line-height: 0; }
.kehai-app .composition-region-key{
  display: flex; justify-content: center; gap: 9px; margin: 10px 18px 0;
  overflow-x: auto; padding-bottom: 2px; scrollbar-width: none;
}
.kehai-app .composition-region-key::-webkit-scrollbar{ display: none; }
.kehai-app .composition-region-key span{
  flex: 0 0 auto; color: var(--ink-faint); font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.1em; text-transform: uppercase;
}
.kehai-app .composition-region-key span::before{ content: "•"; margin-right: 3px; color: var(--scale-color); }
.kehai-app .composition-region-key span.active{ color: var(--ink-muted); }

/* ---------- Ledger ---------- */
.kehai-app .trends-header{ padding: 50px 26px 0; position: relative; }
.kehai-app .trends-title{
  font-family: var(--font-display); font-size: 34px; line-height: 1; font-weight: 300; font-style: italic; color: var(--ink); margin-top: 7px;
}
.kehai-app .trends-intro{ font-family: var(--font-display); font-style: italic; font-size: 15px; color: var(--ink-muted); margin-top: 9px; }

/* quiet marble-sculpture watermark behind the Ledger header — a stone-world nod */
.kehai-app .trends-header::before{
  content: "";
  position: absolute;
  top: -6px; right: 10px;
  width: 128px; height: 150px;
  background-image: url("assets/demo/marble-torso.jpg");
  background-size: cover;
  background-position: top center;
  -webkit-mask-image: linear-gradient(to bottom, black 35%, transparent 92%);
  mask-image: linear-gradient(to bottom, black 35%, transparent 92%);
  opacity: 0.16;
  filter: grayscale(1) contrast(1.05);
  pointer-events: none;
  z-index: 0;
}
.kehai-app .trends-header > *{ position: relative; z-index: 1; }

.kehai-app .body-changes-overview{
  margin: 26px 26px 0; padding: 18px 16px 4px;
  border: 1px solid var(--hairline-soft); border-radius: 15px;
  background: rgba(242,238,228,0.56);
}
.kehai-app .body-changes-heading{ display: flex; align-items: end; justify-content: space-between; gap: 12px; }
.kehai-app .body-changes-heading h3{
  margin-top: 6px; color: var(--ink); font-family: var(--font-display); font-size: 24px; font-weight: 300; font-style: italic; line-height: 1;
}
.kehai-app .body-changes-heading > span{
  color: var(--ink-faint); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.11em; line-height: 1.3; text-align: right; text-transform: uppercase;
}
.kehai-app .body-changes-overview > p{ margin-top: 10px; color: var(--ink-muted); font-family: var(--font-body); font-size: 11.5px; line-height: 1.45; }
.kehai-app .ledger-estimate-row{
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px;
  min-height: 54px; margin: 13px 0 14px; padding: 10px 13px 10px 14px;
  border: 1px solid var(--hairline); border-radius: 11px;
  background: var(--surface); color: var(--ink); text-align: left;
}
.kehai-app .ledger-estimate-row > span:first-child{ display: grid; gap: 2px; }
.kehai-app .ledger-estimate-row small{ color: var(--ink-faint); font-family: var(--font-mono); font-size: 8px; letter-spacing: .08em; text-transform: uppercase; }
.kehai-app .ledger-estimate-row strong{ color: var(--sand-accent); font-family: var(--font-display); font-size: 18px; font-style: italic; font-weight: 500; }
.kehai-app .ledger-estimate-row > span:last-child{ color: var(--ink-muted); font-family: var(--font-display); font-size: 25px; line-height: 1; }

.kehai-app .body-change-entries{ margin-top: 15px; border-top: 1px solid var(--hairline); }
.kehai-app .body-change-row{ border-bottom: 1px solid var(--hairline-soft); }
.kehai-app .body-change-row summary{
  position: relative; display: grid;
  grid-template-columns: minmax(0,1fr) 60px auto; grid-template-rows: auto auto;
  gap: 3px 10px; min-height: 65px; padding: 11px 21px 10px 0; list-style: none; cursor: pointer;
}
.kehai-app .body-change-row summary::-webkit-details-marker{ display: none; }
.kehai-app .body-change-row summary::after{
  content: "⌄"; position: absolute; right: 0; top: 19px; color: var(--ink-faint);
  font-family: var(--font-body); font-size: 16px; line-height: 1; transition: transform var(--dur-fast) var(--ease);
}
.kehai-app .body-change-row[open] summary::after{ transform: rotate(180deg); }
.kehai-app .body-change-main{ min-width: 0; display: flex; flex-direction: column; justify-content: center; gap: 3px; }
.kehai-app .body-change-label{ color: var(--ink); font-family: var(--font-body); font-size: 13px; font-weight: 500; }
.kehai-app .body-change-source{ color: var(--ink-faint); font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.1em; text-transform: uppercase; }
.kehai-app .body-change-trend{ grid-column: 2; grid-row: 1 / span 2; align-self: center; }
.kehai-app .body-change-trend svg{ width: 60px; height: 27px; overflow: visible; }
.kehai-app .body-change-trend polyline{ fill: none; stroke: var(--scale-color); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.kehai-app .body-change-value{ grid-column: 3; color: var(--ink); font-family: var(--font-display); font-size: 20px; line-height: 1; text-align: right; white-space: nowrap; }
.kehai-app .body-change-value small{ margin-left: 2px; color: var(--ink-muted); font-family: var(--font-body); font-size: 9px; }
.kehai-app .body-change-delta{ grid-column: 3; color: var(--scale-color); font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.04em; line-height: 1.2; text-align: right; white-space: nowrap; }
.kehai-app .body-change-delta[data-direction="flat"]{ color: var(--ink-faint); }
.kehai-app .body-change-delta[data-direction="up"]{ color: var(--scale-color); }
.kehai-app .body-change-expand{ padding: 0 0 13px; }
.kehai-app .body-change-expand p{ color: var(--ink-muted); font-family: var(--font-body); font-size: 11px; line-height: 1.45; }
.kehai-app .body-change-open-timeline{
  display: inline-flex; align-items: center; gap: 5px; min-height: 34px; margin-top: 6px;
  border: 0; background: none;
  color: var(--sand-accent); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.13em; text-transform: uppercase;
}
.kehai-app .body-change-open-timeline span{ font-size: 14px; line-height: 0; }

.kehai-app .metric-detail-panel{ margin-top: 25px; }
.kehai-app .metric-detail-heading{ display: flex; align-items: end; justify-content: space-between; gap: 14px; padding: 0 26px; }
.kehai-app .metric-detail-heading h3{
  margin-top: 6px; color: var(--ink); font-family: var(--font-display); font-size: 24px; font-weight: 300; font-style: italic; line-height: 1;
}
.kehai-app .metric-detail-close{
  min-height: 38px; padding: 0 0 0 12px; border:0; background:none;
  color: var(--sand-accent); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; text-transform: uppercase;
}
.kehai-app .ledger-source-note{ margin: 10px 26px 0; color: var(--ink-muted); font-family: var(--font-body); font-size: 11px; line-height: 1.42; }
.kehai-app .weight-summary{
  margin: 27px 26px 0; padding: 18px 0 17px;
  border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
  display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
}
.kehai-app .weight-summary-label,
.kehai-app .chart-period,
.kehai-app .history-heading span{
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.17em; text-transform: uppercase; color: var(--ink-faint);
}
.kehai-app .weight-summary-value{ font-family: var(--font-display); font-size: 41px; line-height: 0.9; font-weight: 300; margin-top: 9px; color: var(--ink); }
.kehai-app .weight-summary-value span,
.kehai-app .selected-weighin-value span{ font-family: var(--font-body); font-size: 13px; color: var(--ink-muted); margin-left: 4px; }
.kehai-app .weight-summary-change{ font-family: var(--font-mono); font-size: 11px; line-height: 1.3; color: var(--scale-color); text-align: right; max-width: 104px; }
.kehai-app .weight-summary-change[data-direction="flat"]{ color: var(--ink-muted); }

.kehai-app .range-row{
  display: grid; grid-template-columns: repeat(5, 1fr); margin: 18px 26px 0;
  border: 1px solid var(--hairline); border-radius: 9px; overflow: hidden; background: rgba(242,238,228,0.35);
}
.kehai-app .range-button{
  min-height: 40px; border: 0; border-right: 1px solid var(--hairline-soft); background: transparent;
  color: var(--ink-faint); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase;
}
.kehai-app .range-button:last-child{ border-right: 0; }
.kehai-app .range-button.active{ background: var(--sand-accent); color: var(--surface); }

.kehai-app .weight-chart-card{
  margin: 18px 26px 0; background: rgba(242,238,228,0.56);
  border: 1px solid var(--hairline-soft); border-radius: 15px; padding: 17px 16px 14px;
}
.kehai-app .chart-topline{ display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.kehai-app .chart-period{ color: var(--ink-muted); text-align: right; }
.kehai-app .weight-chart{ width: 100%; height: 150px; overflow: visible; margin-top: 13px; }
.kehai-app .chart-rule{ stroke: rgba(44,36,24,0.12); stroke-width: 1; }
.kehai-app .chart-line{ fill: none; stroke: var(--scale-color); stroke-width: 2.3; stroke-linecap: round; stroke-linejoin: round; }
.kehai-app .chart-point{ fill: var(--surface); stroke: var(--scale-color); stroke-width: 1.8; }
.kehai-app .chart-point.is-selected{ fill: var(--scale-color); }
.kehai-app .chart-guidance{ font-family: var(--font-display); font-style: italic; font-size: 13px; color: var(--ink-muted); margin-top: 1px; }

.kehai-app .selected-weighin{
  position: relative; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 6px 10px;
  margin: 18px 26px 0; padding: 15px 0 16px; border-bottom: 1px solid var(--hairline);
}
.kehai-app .selected-weighin-date{ font-family: var(--font-display); font-size: 21px; line-height: 1; color: var(--ink); margin-top: 6px; }
.kehai-app .selected-weighin-value{ grid-column: 1; font-family: var(--font-display); font-size: 30px; font-weight: 300; color: var(--ink); line-height: 1; }
.kehai-app .selected-weighin-action{
  grid-column: 2; grid-row: 1 / span 2; min-height: 44px; padding: 0 0 0 12px; border: 0; background: transparent;
  color: var(--sand-accent); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase;
}
.kehai-app .add-weighin-button{
  width: calc(100% - 52px); min-height: 48px; margin: 18px 26px 0;
  border: 1px solid var(--sand-accent); border-radius: 10px; background: var(--sand-accent); color: var(--surface);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
}
.kehai-app .ledger-calculations{
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 18px 26px 0;
  border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline);
}
.kehai-app .ledger-calculations > div{ display: flex; flex-direction: column; gap: 5px; padding: 13px 0 12px; }
.kehai-app .ledger-calculations > div + div{ padding-left: 16px; border-left: 1px solid var(--hairline); }
.kehai-app .ledger-calculations span,
.kehai-app .ledger-calculations p{ color: var(--ink-faint); font-family: var(--font-mono); font-size: 7px; letter-spacing: 0.11em; text-transform: uppercase; }
.kehai-app .ledger-calculations strong{ color: var(--ink); font-family: var(--font-display); font-size: 21px; font-weight: 300; line-height: 1; }
.kehai-app .ledger-calculations strong small{ color: var(--ink-muted); font-family: var(--font-body); font-size: 9px; }
.kehai-app .ledger-calculations p{ grid-column: 1 / -1; margin: 0; padding: 0 0 12px; line-height: 1.45; text-transform: none; letter-spacing: 0.04em; }

.kehai-app .weighin-history{ margin: 27px 26px 0; }
.kehai-app .history-heading{ display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 10px; border-bottom: 1px solid var(--hairline); }
.kehai-app .history-heading h3{ font-family: var(--font-display); font-size: 21px; font-weight: 300; font-style: italic; color: var(--ink); }
.kehai-app .weight-entries{ display: flex; flex-direction: column; }
.kehai-app .weight-entry{
  width: 100%; min-height: 51px; display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center;
  border: 0; border-bottom: 1px solid var(--hairline-soft); background: transparent; text-align: left; color: var(--ink);
}
.kehai-app .weight-entry-date{ font-family: var(--font-body); font-size: 13px; color: var(--ink); }
.kehai-app .weight-entry-value{ font-family: var(--font-display); font-size: 21px; line-height: 1; }
.kehai-app .weight-entry-value span{ font-family: var(--font-body); font-size: 11px; color: var(--ink-muted); margin-left: 3px; }
.kehai-app .weight-entry-edit{ font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); }

/* ===================================================================
   SIGNALS
   =================================================================== */
.kehai-app .signals-header{ padding: 50px 26px 0; }
.kehai-app .signals-title{
  font-family: var(--font-display); font-weight: 300; font-style: italic; font-size: 34px;
  color: var(--ink); margin-top: 6px; letter-spacing: 0.005em;
}
.kehai-app .source-pill{
  margin-top: 14px; display: inline-flex; align-items: center; gap: 8px;
  background: rgba(242,238,228,0.7); border: 1px solid var(--hairline); border-radius: 20px;
  padding: 7px 12px; min-height: 32px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; color: var(--ink-muted);
}
.kehai-app .source-pill-dot{ width: 6px; height: 6px; border-radius: 50%; background: #4B8A6B; flex-shrink: 0; }
.kehai-app .source-pill-chevron{ color: var(--ink-faint); font-size: 13px; margin-left: 2px; }

.kehai-app .segment-tabs{ display: flex; gap: 8px; padding: 18px 26px 0; }
.kehai-app .segment-tab{
  flex: 1; min-height: 40px; background: none; border: 1px solid var(--hairline); border-radius: 10px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; padding: 10px 0; color: var(--ink-muted);
}
.kehai-app .segment-tab.active{ background: var(--sand-accent); color: var(--surface); border-color: var(--sand-accent); }

.kehai-app .figure-wrap{ position: relative; margin: 20px auto 0; width: 300px; height: 320px; }
.kehai-app .figure-img{
  width: 100%; height: 100%; object-fit: cover; object-position: center 20%;
  border-radius: 4px;
  filter: sepia(0.24) saturate(0.85) brightness(0.96) contrast(1.02);
  opacity: 0.92;
  -webkit-mask-image: linear-gradient(to bottom, black 74%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 74%, transparent 100%);
}
.kehai-app .figure-veil{
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(200,191,176,0) 40%, rgba(200,191,176,0.25) 100%);
  pointer-events: none;
}
.kehai-app .pins-layer{ position: absolute; inset: 0; }
.kehai-app .pins-group{ position: absolute; inset: 0; }
.kehai-app .pins-group[hidden]{ display: none; }
.kehai-app .pin{
  position: absolute; width: 44px; height: 44px; margin: -22px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none; padding: 0;
  -webkit-tap-highlight-color: transparent;
}
.kehai-app .pin-dot{
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--health-color);
  box-shadow: 0 0 0 5px rgba(106,78,48,0.16);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.kehai-app .pin[data-source="scale"] .pin-dot{ background: var(--scale-color); box-shadow: 0 0 0 5px rgba(148,67,59,0.16); }
.kehai-app .pin[data-source="calc"] .pin-dot{ background: var(--calc-color); box-shadow: 0 0 0 5px rgba(122,113,86,0.18); }
.kehai-app .pin[data-source="manual"] .pin-dot{ background: var(--manual-color); box-shadow: 0 0 0 5px rgba(78,106,99,0.18); }
.kehai-app .pin-empty .pin-dot{ background: transparent; border: 1.5px dashed var(--ink-faint); box-shadow: none; }
.kehai-app .pin:hover .pin-dot,
.kehai-app .pin:focus-visible .pin-dot{ transform: scale(1.25); }
.kehai-app .pin.active .pin-dot{ transform: scale(1.35); box-shadow: 0 0 0 6px rgba(106,78,48,0.28); }
.kehai-app .pin.active[data-source="scale"] .pin-dot{ box-shadow: 0 0 0 6px rgba(148,67,59,0.28); }
.kehai-app .pin.active[data-source="calc"] .pin-dot{ box-shadow: 0 0 0 6px rgba(122,113,86,0.3); }
.kehai-app .pin-flag{
  position: absolute; top: 4px; left: 34px;
  background: rgba(242,238,228,0.96); border: 1px solid var(--hairline); border-radius: 8px;
  padding: 4px 8px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-muted); white-space: nowrap;
  opacity: 0.88;
  pointer-events: none;
}
.kehai-app .pin-flag-left .pin-flag{ left: auto; right: 34px; }
.kehai-app .pin-empty .pin-flag{ opacity: 0.48; }
.kehai-app .pin:hover .pin-flag,
.kehai-app .pin:focus-visible .pin-flag,
.kehai-app .pin.active .pin-flag{ opacity: 1; }

.kehai-app .active-card{
  margin: 26px 26px 0; background: var(--surface); border-radius: 16px;
  padding: 22px 22px 20px; border: 1px solid var(--hairline-soft);
}
.kehai-app .active-card-top{ display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.kehai-app .active-source-chip{
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--surface); background: var(--health-color); border-radius: 10px; padding: 4px 9px; white-space: nowrap;
}
.kehai-app .active-source-chip[data-source="scale"]{ background: var(--scale-color); }
.kehai-app .active-source-chip[data-source="calc"]{ background: var(--calc-color); }
.kehai-app .active-source-chip[data-source="manual"]{ background: var(--manual-color); }
.kehai-app .active-label{ font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); text-align: right; }
.kehai-app .active-value{ font-family: var(--font-display); font-weight: 300; font-size: 46px; color: var(--ink); margin-top: 10px; line-height: 1; }
.kehai-app .active-unit{ font-family: var(--font-body); font-size: 15px; color: var(--ink-muted); margin-left: 6px; }
.kehai-app .active-copy{ font-family: var(--font-body); font-size: 13px; color: var(--ink-muted); line-height: 1.6; margin-top: 12px; }
.kehai-app .active-secondary{ margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--hairline-soft); display: flex; gap: 22px; }
.kehai-app .active-secondary-item{ flex: 1; }
.kehai-app .active-secondary-label{ font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-faint); }
.kehai-app .active-secondary-value{ font-family: var(--font-display); font-size: 22px; color: var(--ink); margin-top: 3px; }
.kehai-app .active-secondary-value span{ font-family: var(--font-body); font-size: 12px; color: var(--ink-muted); margin-left: 3px; }
.kehai-app .detail-toggle{
  margin-top: 15px; background: none; border: none; padding: 4px 0; min-height: 44px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.17em; text-transform: uppercase; color: var(--ink-muted);
  display: inline-flex; align-items: center; gap: 6px;
}
.kehai-app .detail-toggle::after{
  content: ""; width: 7px; height: 7px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-2px); transition: transform var(--dur-fast) var(--ease);
}
.kehai-app .detail-toggle[aria-expanded="true"]::after{ transform: rotate(225deg) translate(-2px, -1px); }
.kehai-app .active-detail{ margin-top: 2px; padding-top: 13px; border-top: 1px solid var(--hairline-soft); font-size: 12px; color: var(--ink-muted); line-height: 1.65; }
.kehai-app .active-detail .active-copy{ margin: 0; }
.kehai-app .active-detail dl{ display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin-top: 8px; }
.kehai-app .active-detail dt{ font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.kehai-app .active-detail dd{ font-family: var(--font-body); font-size: 12px; color: var(--ink); }

.kehai-app .legend{ display: flex; justify-content: center; gap: 18px; padding: 18px 26px 0; flex-wrap: wrap; }
.kehai-app .legend-item{ display: flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }
.kehai-app .legend-dot{ width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.kehai-app .legend-dot--health{ background: var(--health-color); }
.kehai-app .legend-dot--scale{ background: var(--scale-color); }
.kehai-app .legend-dot--calc{ background: var(--calc-color); }
.kehai-app .legend-dot--manual{ background: var(--manual-color); }

/* --- override: fit the demo into the page as a section, not a standalone dark page ---
   Base .kehai-demo-shell still has min-height:100vh + full-bleed #0f0d0a + 40px padding.
   These modifiers win without deleting that rule. */
.kehai-demo-shell--embedded,
.kehai-app--embedded{
  min-height: 0;
  background: transparent;
  padding: 8px 6vw 10px;
}
.kehai-app.kehai-app--embedded{
  padding: 0;
  min-height: 0;
}
.kehai-demo-shell--embedded .kehai-demo-switch{
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  border-color: var(--line);
}
.kehai-demo-shell--embedded .kehai-demo-switch button{
  color: var(--soft);
}
.kehai-demo-shell--embedded .kehai-demo-switch button.active{
  background: var(--accent);
  color: var(--bg);
}

/* ---------- embedded demo: scale phone to fit mobile viewport ---------- */
@media (max-width:720px){
  .kehai-app.kehai-app--embedded{
    --phone-scale: min(0.76, (100vw - 40px) / 390);
    height: calc(844px * var(--phone-scale));
    display: flex;
    justify-content: center;
    overflow: visible;
  }
  .kehai-app--embedded .phone-frame{
    transform: scale(var(--phone-scale));
    transform-origin: top center;
  }
}

/* ---------- plate showcase (remake plates, contained width) ---------- */
.plate-showcase{max-width:820px;margin:48px auto 0;padding:0 clamp(20px,4vw,32px)}
.plate-feature{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/3;max-height:56vh;width:min(100%,calc(56vh * 4 / 3));margin:0 auto 14px}
.plate-feature img{width:100%;height:100%;object-fit:cover;object-position:center top;filter:sepia(.12) contrast(1.04)}
.plate-feature-veil{position:absolute;inset:0;background:linear-gradient(to top,rgba(28,20,12,.55) 0%,transparent 55%);pointer-events:none}
html[data-world="sand"] .plate-feature-veil{background:linear-gradient(to top,rgba(42,32,22,.42) 0%,transparent 55%)}
.plate-feature-caption{position:absolute;left:22px;right:22px;bottom:22px;text-align:left}
.plate-feature-caption span{display:block;font-family:var(--font-mono);font-size:8px;letter-spacing:.2em;text-transform:uppercase;color:rgba(242,238,228,.72);margin-bottom:6px}
.plate-feature-caption strong{font-family:var(--font-display);font-weight:300;font-size:clamp(18px,2.6vw,26px);color:#F2EEE4}
.plate-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:720px){.plate-strip{grid-template-columns:repeat(2,1fr)}}
.plate-thumb{position:relative;aspect-ratio:3/4;border-radius:14px;overflow:hidden;border:1px solid var(--line);cursor:pointer;background:transparent;padding:0}
.plate-thumb img{width:100%;height:100%;object-fit:cover;filter:sepia(.1);opacity:.88}
.plate-thumb.is-active,.plate-thumb:hover{border-color:var(--accent)}
.plate-thumb.is-active img,.plate-thumb:hover img{opacity:1}
.plate-grammar-copy{max-width:640px;margin:28px auto 0;font-family:var(--font-display);font-style:italic;font-weight:300;font-size:clamp(16px,2vw,20px);color:var(--soft);line-height:1.55;text-align:center}