/* ==========================================================================
   Kenwise site: shared stylesheet for every SITE page of www.kenwise.app
   Build spec 2026-09-23 (Claude-Documentation/REVIEW/DECISIONS_2026-09-16/
   _www_themes_2026-09-23/SPEC.md, section 4). Linked by the stamped head block
   (subdomain_servers/www_app/frame/head.html) BEFORE the page's own <style>.

   1. Tokens: IndigoLeaf (day) and Night Aurora (night), the app palettes.
      Pages use these names and must not redefine them at :root / html / body /
      [data-theme] / [data-mode] level (site_frame.py --check lints that).
      Shared-only helpers carry a --kw- prefix.
   2. Backdrop: one fixed, viewport-sized art layer (body::before) plus a
      readability wash (body::after). The page background is transparent so the
      art shows on every screen of the page, below the fold included. Four image
      files in total, shared by every page; only the one for the current mode and
      screen orientation downloads.
   3. Frame: the shared top bar (.kw-nav), footer (.kw-footer) and mode button
      (.kw-modebtn). Page CSS must never style these (lint in site_frame.py).
   v4.2 (TUNE lane, 2026-09-23 evening; LANE_TUNE.md): lighter washes, landscape
      wash limited to the content column by a mask with extra bands where the art
      is darkest; phone plates with art over the whole height; translucent card
      helpers (--kw-card, --kw-card-2, --kw-blur); loose-text colours
      (--kw-loose-2, --kw-loose-green, --kw-loose-link) for text with no card or
      panel behind it; a near-opaque top bar (--kw-nav-bg 94 % day / 92 % night);
      cards and panels at 80 % with a blur; the day ribbon art is shown as drawn; the night aurora art is dimmed to 80 % brightness.
   ========================================================================== */

/* ---------- 1. tokens ---------- */
:root,
[data-theme="indigo"] {
  /* IndigoLeaf (day) */
  --bg:#FBFCFE; --surface:#FFFFFF; --surface-2:#F1F4FC; --text:#1C2233; --text-2:#525B75; --border:#E4E8F2;
  --primary:#2F4FC6; --primary-strong:#2F4FC6; --on-primary:#FFFFFF; --primary-soft:#E8EDFB; --on-primary-soft:#101C40;
  --secondary:#3D7A1E; --secondary-strong:#3D7A1E; --on-secondary:#FFFFFF; --secondary-soft:#E9F5DF;
  --accent:#F5820D; --on-accent:#2A1603;
  --success:#3D7A1E; --warning:#F5820D; --error:#E07856;
  --grad-a:#2F4FC6; --grad-b:#3D7A1E; --on-band:#FFFFFF;
  --shadow-sm:0 1px 2px rgba(18,20,33,.05),0 4px 16px rgba(18,20,33,.05);
  --shadow-md:0 10px 34px rgba(18,20,33,.08);
  --shadow-lg:0 24px 60px rgba(18,20,33,.13);

  /* shared helpers */
  --kw-font-disp:'Plus Jakarta Sans','Noto Sans Thai',sans-serif;
  --kw-font-body:'Noto Sans Thai','Plus Jakarta Sans',sans-serif;
  --kw-art:url("themes/indigo_leaf_hero_v4.webp");         /* portrait screens: ribbon art in the lower part only (Ken 2026-09-28) */
  --kw-art-top:url("themes/indigo_leaf_top_v1.webp");     /* lighter ribbon accent pinned just under the top bar (Ken 2026-09-28) */
  --kw-art-top-size:70vw auto;                           /* portrait screens */
  --kw-art-top-pos:right 0 top 65px;                     /* the top bar is 64 px tall below 921 px, 70 px above */
  --kw-nav-bg:rgba(251,252,254,.94);                     /* --bg at 94 % (v4.2: scrolled text no longer shows through) */
  --kw-footer-bg:rgba(251,252,254,.88);                  /* --bg at 88 % */
  --kw-col-wash:rgba(251,252,254,.30);                   /* portrait: uniform 30 % */
  --kw-wash-top:rgba(251,252,254,0);                     /* landscape only: extra wash band at the top ... */
  --kw-wash-top-to:0%; --kw-wash-top-end:0%;             /* ... full strength to -to, fading out at -end */
  --kw-wash-bot:rgba(251,252,254,0);                     /* landscape only: extra wash band at the bottom */
  --kw-wash-bot-to:0%; --kw-wash-bot-end:0%;
  --kw-panel:rgba(251,252,254,.80);                      /* translucent panel behind loose text, with a blur */
  --kw-band:rgba(241,244,252,.22);                       /* full-width tinted band: --surface-2 at 22 % */
  --kw-card:rgba(255,255,255,.80);                       /* card: --surface at 80 %, with --kw-blur */
  --kw-card-2:rgba(241,244,252,.80);                     /* card: --surface-2 at 80 % */
  --kw-blur:blur(10px);
  --kw-art-sat:none;                                     /* ribbon art v4 is drawn at its final colours (Ken 2026-09-28) */
  /* LOOSE text (no card or panel behind it, so the art slides under it while the page scrolls):
     darker shades of the palette hues that stay >= 4.5:1 over every part of the washed art */
  --kw-loose-2:#30374A;                                  /* instead of --text-2 */
  --kw-loose-green:#1E440B;                              /* instead of --secondary-strong */
  --kw-loose-link:#1E348C;                               /* instead of --primary / --primary-strong */
  /* status badges (website v3, 2026-09-28): available = green, pilot = amber,
     planned / coming soon = neutral grey-blue; every pair >= 7:1 */
  --kw-st-ok-bg:#E3F3D6;    --kw-st-ok-fg:#1E440B;
  --kw-st-pilot-bg:#FDEBD0; --kw-st-pilot-fg:#6E3400;
  --kw-st-soon-bg:#E6EBF5;  --kw-st-soon-fg:#34405E;
}
:root[data-mode="dark"],
[data-theme="indigo"][data-mode="dark"] {
  /* Night Aurora (night) */
  --bg:#0C1020; --surface:#141A2E; --surface-2:#1A2140; --text:#ECEDF7; --text-2:#B4BBD6; --border:#2E3556;
  --primary:#F5C86B; --primary-strong:#F5C86B; --on-primary:#3A2A05; --primary-soft:#3D3115; --on-primary-soft:#FBE7BE;
  --secondary:#8FE06C; --secondary-strong:#8FE06C; --on-secondary:#0F2408; --secondary-soft:#1C3A18;
  --accent:#FFC46B; --on-accent:#3A2A05;
  --success:#8FE06C; --warning:#FFC46B; --error:#FF7676;
  --grad-a:#23293F; --grad-b:#1C3A18; --on-band:#ECEDF7;
  --shadow-sm:0 1px 2px rgba(0,0,0,.35),0 4px 16px rgba(0,0,0,.25);
  --shadow-md:0 10px 34px rgba(0,0,0,.40);
  --shadow-lg:0 24px 60px rgba(0,0,0,.45);

  --kw-art:url("themes/night_aurora_hero_v3.webp");         /* aurora only, no foliage; bottom corners +40 % (Ken 2026-09-28) */
  --kw-art-top:none;                                     /* the accent is a day-theme layer only */
  --kw-nav-bg:rgba(12,16,32,.92);
  --kw-footer-bg:rgba(12,16,32,.88);
  --kw-col-wash:rgba(12,16,32,.36);                      /* portrait: uniform 36 % */
  --kw-wash-top:rgba(12,16,32,0);
  --kw-wash-bot:rgba(12,16,32,0);
  --kw-panel:rgba(12,16,32,.80);
  --kw-band:rgba(26,33,64,.22);
  --kw-card:rgba(20,26,46,.80);
  --kw-card-2:rgba(26,33,64,.80);
  --kw-art-sat:brightness(.8);                           /* night aurora v2: dimmed so light text keeps >= 4.5:1 over it */
  --kw-loose-2:#E0E4F2;
  --kw-loose-green:#C4F5AE;
  --kw-loose-link:#FCE8BE;
  --kw-st-ok-bg:#1C3A18;    --kw-st-ok-fg:#C4F5AE;
  --kw-st-pilot-bg:#3D2E10; --kw-st-pilot-fg:#FFD48A;
  --kw-st-soon-bg:#242C48;  --kw-st-soon-fg:#C9D2EE;
}
/* landscape screens: the wide art and the column-shaped wash (plus a band where the art is darkest
   (day: bottom foliage; night: the aurora in the upper third) so loose text stays readable there) */
@media (min-aspect-ratio: 5/4) {
  :root,
  [data-theme="indigo"] {
    --kw-art:url("themes/indigo_leaf_wide_v4.webp");
    --kw-art-sat:none;                                   /* ribbon art v4: no boost */
    --kw-art-top-size:min(40vw, 640px) auto;             /* landscape screens */
    --kw-col-wash:rgba(251,252,254,.22);                 /* 22 % over the content column */
    --kw-wash-top:rgba(251,252,254,.5); --kw-wash-top-to:5%; --kw-wash-top-end:12%;
    --kw-wash-bot:rgba(251,252,254,.5); --kw-wash-bot-to:6%; --kw-wash-bot-end:18%;
  }
  :root[data-mode="dark"],
  [data-theme="indigo"][data-mode="dark"] {
    --kw-art:url("themes/night_aurora_wide_v3.webp");
    --kw-col-wash:rgba(12,16,32,.30);                    /* 30 % over the content column */
    --kw-wash-top:rgba(12,16,32,.5); --kw-wash-top-to:30%; --kw-wash-top-end:55%;
    --kw-wash-bot:rgba(12,16,32,0); --kw-wash-bot-to:0%; --kw-wash-bot-end:0%;
  }
}

@media (min-width: 921px) {
  :root,
  [data-theme="indigo"] { --kw-art-top-pos:right 0 top 71px; }
}

/* ---------- 2. page background + backdrop layer ---------- */
html { background-color:var(--bg); color-scheme:light; }
:root[data-mode="dark"] { color-scheme:dark; }
html body { background:transparent; }                   /* the art layer shows through */
body { color:var(--text); }

/* the art: fixed to the viewport, so it stays in view on every screen of a long page
   (also on iOS, where background-attachment:fixed does not work) */
body::before {
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:var(--kw-art-top) var(--kw-art-top-pos) / var(--kw-art-top-size) no-repeat,
             var(--kw-art) center / cover no-repeat;
  background-blend-mode:multiply, normal;               /* the accent's white ground disappears into the art */
  filter:var(--kw-art-sat);
}
/* the readability wash: uniform on portrait screens ... */
body::after {
  content:""; position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:var(--kw-col-wash);
}
/* ... on landscape screens: the column wash plus the top/bottom bands, all limited to the content
   column by a mask that fades to nothing at the page edges, so the art is at full strength there */
@media (min-aspect-ratio: 5/4) {
  body::after {
    background:
      linear-gradient(180deg, var(--kw-wash-top) 0, var(--kw-wash-top) var(--kw-wash-top-to), transparent var(--kw-wash-top-end)),
      linear-gradient(0deg, var(--kw-wash-bot) 0, var(--kw-wash-bot) var(--kw-wash-bot-to), transparent var(--kw-wash-bot-end)),
      linear-gradient(var(--kw-col-wash), var(--kw-col-wash));
    -webkit-mask-image:linear-gradient(90deg, transparent 0, #000 calc(50% - 580px), #000 calc(50% + 580px), transparent 100%);
            mask-image:linear-gradient(90deg, transparent 0, #000 calc(50% - 580px), #000 calc(50% + 580px), transparent 100%);
  }
}

/* ---------- 3. frame ---------- */
/* shared: brand mark + mode button */
.kw-nav *, .kw-footer * { box-sizing:border-box; }
.kw-nav a.kw-brand, .kw-footer a.kw-brand {
  display:inline-flex; align-items:center; gap:10px; flex:none;
  font-family:var(--kw-font-disp); font-weight:800; letter-spacing:-.02em; line-height:1.2;
  color:var(--text); text-decoration:none;
}
.kw-nav .kw-brand-mark, .kw-footer .kw-brand-mark {
  display:grid; place-items:center; flex:none; width:32px; height:32px; border-radius:10px;
  background:linear-gradient(135deg,#2F4FC6,#3D7A1E); color:#FFFFFF; box-shadow:var(--shadow-sm);
}
.kw-nav .kw-brand-mark svg, .kw-footer .kw-brand-mark svg { display:block; width:19px; height:19px; }

button.kw-modebtn {
  display:grid; place-items:center; flex:none; width:40px; height:40px; margin:0; padding:0;
  border-radius:50%; border:1px solid var(--border); background:var(--surface); color:var(--text);
  font:inherit; line-height:1; cursor:pointer; box-shadow:none;
  transition:border-color .15s, color .15s;
}
button.kw-modebtn:hover { border-color:var(--primary); color:var(--primary); }
button.kw-modebtn svg { display:block; width:19px; height:19px; }
button.kw-modebtn .kw-modebtn-moon { display:none; }
[data-mode="dark"] button.kw-modebtn .kw-modebtn-sun { display:none; }
[data-mode="dark"] button.kw-modebtn .kw-modebtn-moon { display:block; }

/* top bar */
.kw-nav {
  position:sticky; top:0; z-index:60; margin:0;
  background:var(--kw-nav-bg);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  font-family:var(--kw-font-body); font-size:16px; line-height:1.5; color:var(--text); text-align:left;
}
.kw-nav .kw-nav-in {
  display:flex; align-items:center; gap:10px;
  max-width:1100px; height:70px; margin:0 auto; padding:0 24px;
}
.kw-nav a.kw-brand { font-size:20px; margin-right:6px; }
/* v3 (2026-09-28): six items, a language switch, login and trial share one line; sizes chosen so the
   bar fits the 1100 px column in Thai and in English (measured at 1024 / 1280 / 1366 px) */
.kw-nav .kw-nav-links { display:flex; align-items:center; gap:14px; font-size:14.5px; font-weight:600; }
.kw-nav .kw-nav-links a { color:var(--text-2); text-decoration:none; white-space:nowrap; border-radius:6px; }
.kw-nav .kw-nav-links a:hover { color:var(--primary); }
.kw-nav .kw-nav-links a[aria-current="page"] {
  color:var(--primary);
  text-decoration:underline; text-decoration-thickness:2px; text-underline-offset:7px;
}
.kw-nav .kw-nav-sp { flex:1 1 auto; min-width:0; }
.kw-nav a.kw-nav-login { font-size:14.5px; font-weight:700; color:var(--text-2); text-decoration:none; white-space:nowrap; border-radius:6px; }
.kw-nav a.kw-nav-login:hover { color:var(--primary); }
.kw-nav a.kw-nav-login-inmenu { display:none; }                 /* phones: Register / Login inside the menu panel */
.kw-nav a.kw-nav-cta {
  display:inline-flex; align-items:center; justify-content:center; flex:none;
  padding:9px 16px; border-radius:999px; border:0;
  font-family:var(--kw-font-disp); font-weight:700; font-size:14.5px; line-height:1.2; white-space:nowrap;
  background:var(--primary-strong); color:var(--on-primary); text-decoration:none;
  box-shadow:0 10px 24px -10px var(--primary);
  transition:box-shadow .2s, transform .12s;
}
.kw-nav a.kw-nav-cta:hover { box-shadow:0 14px 30px -10px var(--primary); }
.kw-nav a.kw-nav-cta:active { transform:translateY(1px); }
.kw-nav button.kw-nav-menubtn {
  display:none; place-items:center; flex:none; width:40px; height:40px; margin:0; padding:0;
  border-radius:12px; border:1px solid var(--border); background:var(--surface); color:var(--text);
  font:inherit; line-height:1; cursor:pointer;
}
.kw-nav button.kw-nav-menubtn svg { display:block; width:20px; height:20px; }
.kw-nav button.kw-nav-menubtn[aria-expanded="true"] { border-color:var(--primary); color:var(--primary); }

/* dropdown menus (website v3, 2026-09-28; behaviour in kw_lang.js): wide screens open on hover and
   on click / Enter / Space; below 921 px each one is an accordion inside the menu panel */
.kw-nav .kw-dd { position:relative; display:flex; align-items:center; }
.kw-nav button.kw-dd-btn {
  display:inline-flex; align-items:center; gap:3px; margin:0; padding:0; border:0; background:none;
  font:inherit; color:var(--text-2); cursor:pointer; white-space:nowrap; border-radius:6px;
}
.kw-nav button.kw-dd-btn:hover,
.kw-nav .kw-dd-open > button.kw-dd-btn,
.kw-nav .kw-dd:has([aria-current="page"]) > button.kw-dd-btn { color:var(--primary); }
.kw-nav .kw-dd-chev { display:block; flex:none; width:15px; height:15px; transition:transform .15s; }
.kw-nav .kw-dd-open .kw-dd-chev { transform:rotate(180deg); }
.kw-nav .kw-dd-menu {
  display:none; position:absolute; top:calc(100% + 16px); left:-14px; z-index:70;
  min-width:240px; padding:8px; margin:0;
  background:var(--surface); border:1px solid var(--border); border-radius:14px; box-shadow:var(--shadow-lg);
}
.kw-nav .kw-dd-menu-wide { min-width:340px; }
.kw-nav .kw-dd-menu::before { content:""; position:absolute; left:0; right:0; top:-18px; height:18px; } /* hover bridge */
.kw-nav .kw-dd-open > .kw-dd-menu { display:block; }
.kw-nav .kw-nav-links .kw-dd-menu a {
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:9px 12px; border-radius:10px; color:var(--text); font-size:14.5px; font-weight:600; line-height:1.35;
  white-space:normal;
}
.kw-nav .kw-nav-links .kw-dd-menu a:hover { background:var(--surface-2); color:var(--primary-strong); }
.kw-nav .kw-nav-links .kw-dd-menu a[aria-current="page"] {
  text-decoration:none; background:var(--primary-soft); color:var(--on-primary-soft);
}
.kw-nav .kw-dd-sep { display:block; height:1px; margin:6px 8px; background:var(--border); }
.kw-nav .kw-dd-badge {
  flex:none; padding:2px 8px; border-radius:999px; font-size:11.5px; font-weight:700; line-height:1.4; white-space:nowrap;
  background:var(--kw-st-soon-bg); color:var(--kw-st-soon-fg);
}
.kw-nav .kw-dd-badge-available { background:var(--kw-st-ok-bg); color:var(--kw-st-ok-fg); }
.kw-nav .kw-dd-badge-pilot { background:var(--kw-st-pilot-bg); color:var(--kw-st-pilot-fg); }

/* language switch "ไทย | EN" (kw_lang.js; shown only on pages with <html data-bilingual>) */
.kw-nav .kw-lang { display:inline-flex; align-items:center; flex:none; border:1px solid var(--border); border-radius:999px; overflow:hidden; background:var(--surface); }
.kw-nav .kw-lang[hidden] { display:none !important; }
.kw-nav .kw-lang-inmenu { display:none; }
.kw-nav button.kw-lang-btn {
  margin:0; padding:6px 10px; border:0; background:none; font:inherit; font-size:13px; font-weight:700; line-height:1.2;
  color:var(--text-2); cursor:pointer;
}
.kw-nav button.kw-lang-btn + button.kw-lang-btn { border-left:1px solid var(--border); }
.kw-nav button.kw-lang-btn[aria-pressed="true"] { background:var(--primary-soft); color:var(--on-primary-soft); }
.kw-nav button.kw-lang-btn:hover { color:var(--primary-strong); }
.kw-nav button.kw-lang-btn[aria-pressed="true"]:hover { color:var(--on-primary-soft); }

/* bilingual pages (website v3): every text node exists twice, <span data-lang="th"> and
   <span data-lang="en" hidden>; kw_lang.js flips the hidden attributes. Before it runs, the chosen
   language on <html data-kw-lang> keeps the other language out of view (no flash). */
[data-lang][hidden] { display:none !important; }
html[data-kw-lang="en"] [data-lang="th"] { display:none !important; }
html[data-kw-lang="en"]:not([data-kw-lang-ready]) [data-en] { visibility:hidden; }

/* footer */
.kw-footer {
  position:relative; margin:0; padding:46px 0 30px;
  border-top:1px solid var(--border);
  background:var(--kw-footer-bg);
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  font-family:var(--kw-font-body); font-size:14.5px; line-height:1.6; color:var(--text-2); text-align:left;
}
.kw-footer .kw-footer-in {
  display:flex; flex-wrap:wrap; align-items:flex-start; justify-content:space-between; gap:18px 32px;
  max-width:1100px; margin:0 auto; padding:0 24px;
}
.kw-footer a.kw-brand { font-size:18px; }
.kw-footer .kw-brand-mark { width:28px; height:28px; border-radius:9px; }
.kw-footer .kw-brand-mark svg { width:16px; height:16px; }
.kw-footer .kw-footer-links { display:flex; flex-wrap:wrap; gap:6px 20px; max-width:660px; }
.kw-footer .kw-footer-links a { padding:3px 0; color:var(--text-2); text-decoration:none; border-radius:6px; }
.kw-footer .kw-footer-links a:hover,
.kw-footer .kw-footer-links a[aria-current="page"] { color:var(--primary); }
/* the tracking opt-out (web visitor analytics, 2026-09-26) looks like the other footer links */
.kw-footer .kw-footer-links .kw-footer-optout { padding:3px 0; margin:0; border:0; background:none; font:inherit; color:var(--text-2); cursor:pointer; border-radius:6px; }
.kw-footer .kw-footer-links .kw-footer-optout:hover { color:var(--primary); }
.kw-footer .kw-footer-links .kw-footer-optout[aria-disabled="true"] { cursor:default; color:var(--text-2); }
.kw-footer .kw-footer-copy { padding:3px 0; white-space:nowrap; }

/* focus rings */
.kw-nav a:focus-visible, .kw-nav button:focus-visible,
.kw-footer a:focus-visible, button.kw-modebtn:focus-visible {
  outline:3px solid var(--primary); outline-offset:3px;
}

/* 921-1100 px: the brand shows its mark only (the word stays for screen readers), smaller switch */
@media (min-width: 921px) and (max-width: 1100px) {
  .kw-nav .kw-nav-in { padding:0 20px; }
  .kw-nav a.kw-brand { font-size:0; gap:0; margin-right:4px; }
  .kw-nav button.kw-modebtn { width:36px; height:36px; }
  .kw-nav button.kw-lang-btn { padding:6px 8px; font-size:12.5px; }
}
/* 921-1000 px: tighter still */
@media (min-width: 921px) and (max-width: 1000px) {
  .kw-nav .kw-nav-links { gap:10px; font-size:13.5px; }
  .kw-nav a.kw-nav-login { font-size:13.5px; }
  .kw-nav a.kw-nav-cta { padding:8px 12px; font-size:13.5px; }
}

/* below 920 px: the links fold into the menu button's panel */
@media (max-width: 920px) {
  .kw-nav .kw-nav-in { gap:12px; height:64px; }
  .kw-nav .kw-nav-links {
    display:none; position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:2px;
    padding:10px 16px 16px;
    max-height:calc(100vh - 64px); max-height:calc(100dvh - 64px); overflow-y:auto; overscroll-behavior:contain;
    background:var(--surface); border-bottom:1px solid var(--border); box-shadow:var(--shadow-md);
    font-size:16px;
  }
  .kw-nav.kw-nav-open .kw-nav-links { display:flex; }
  .kw-nav .kw-nav-links a { padding:11px 12px; border-radius:12px; }
  .kw-nav .kw-nav-links a:hover { background:var(--surface-2); }
  .kw-nav a.kw-nav-login { display:none; }
  .kw-nav .kw-nav-links a.kw-nav-login-inmenu { display:block; font-weight:700; color:var(--primary); }
  .kw-nav button.kw-nav-menubtn { display:grid; }
  /* dropdowns become accordions inside the panel */
  .kw-nav .kw-dd { display:block; }
  .kw-nav button.kw-dd-btn {
    display:flex; width:100%; justify-content:space-between; padding:11px 12px; border-radius:12px;
    font-size:16px; text-align:left;
  }
  .kw-nav button.kw-dd-btn:hover { background:var(--surface-2); }
  .kw-nav .kw-dd-menu, .kw-nav .kw-dd-menu-wide {
    position:static; min-width:0; padding:0 0 6px 14px; margin:0;
    background:none; border:0; border-radius:0; box-shadow:none;
  }
  .kw-nav .kw-dd-menu::before { display:none; }
  .kw-nav .kw-nav-links .kw-dd-menu a { font-size:15px; padding:10px 12px; }
  /* the language switch moves from the bar into the panel */
  .kw-nav .kw-lang-inbar { display:none; }
  .kw-nav .kw-lang-inmenu { display:inline-flex; align-self:flex-start; margin:10px 12px 0; }
  .kw-nav button.kw-lang-btn { padding:8px 14px; font-size:14px; }
}
@media (max-width: 420px) {
  .kw-nav .kw-nav-in { gap:10px; padding:0 16px; }
  .kw-nav a.kw-brand { font-size:19px; gap:9px; }
  .kw-nav .kw-brand-mark { width:30px; height:30px; }
  .kw-nav a.kw-nav-cta { padding:9px 15px; font-size:14px; }
  .kw-footer .kw-footer-in { padding:0 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .kw-nav *, .kw-footer *, button.kw-modebtn { transition:none !important; }
}
@media print {
  body::before, body::after { display:none; }
  .kw-nav { position:static; }
  .kw-nav button.kw-modebtn, .kw-nav button.kw-nav-menubtn { display:none; }
}

/* ---------- scroll cues (assets/kw_scroll_cue.js, Ken 2026-09-26) ----------
   Down cue: bottom centre, first two screens only; bounces three times on the first screen, then rests.
   Back to top: lower right, text-labelled, stationary once shown. Both float above fixed bottom bars
   (--kw-cue-lift, set by the script) and the iPhone home indicator, under the top bar and its open menu. */
.kw-cue{
  position:fixed; z-index:55; bottom:calc(10px + env(safe-area-inset-bottom, 0px) + var(--kw-cue-lift, 0px));
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  min-width:44px; height:44px; padding:0; margin:0;
  border:1px solid var(--border); border-radius:999px; cursor:pointer;
  background:var(--kw-card, var(--surface)); color:var(--primary-strong);
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  box-shadow:var(--shadow-md);
  font-family:var(--kw-font-body, inherit); font-size:14px; font-weight:700; line-height:1;
  opacity:0; visibility:hidden; transition:opacity .25s ease, visibility .25s;
  -webkit-tap-highlight-color:transparent;
}
.kw-cue.is-on{opacity:1; visibility:visible}
/* down cue: solid brand fill, high-contrast arrow (Ken 2026-09-28) - day indigo + white, night gold + dark brown */
.kw-cue-down{background:var(--primary-strong); color:var(--on-primary); border-color:transparent;
  -webkit-backdrop-filter:none; backdrop-filter:none}
.kw-cue-down:hover{border-color:transparent; filter:brightness(1.08)}
.kw-cue-down.is-on.is-quiet{opacity:.9}   /* second screen: people are reading; the cue steps back a little */
.kw-cue-down.is-quiet:hover,.kw-cue-down.is-quiet:focus-visible{opacity:1}
.kw-cue svg{width:22px; height:22px; flex:none}
.kw-cue:hover{border-color:var(--primary)}
.kw-cue:focus-visible{outline:3px solid var(--primary); outline-offset:3px}
.kw-cue-down{left:50%; margin-left:-22px; width:44px}
.kw-cue-top{right:16px; padding:0 16px 0 12px}
@media (min-width:768px){ .kw-cue{bottom:calc(16px + env(safe-area-inset-bottom, 0px) + var(--kw-cue-lift, 0px))} .kw-cue-top{right:24px} }
.kw-cue-down.is-bouncing svg{animation:kw-cue-bounce 1.2s ease-in-out .8s 3}
@keyframes kw-cue-bounce{0%,100%{transform:translateY(0)} 40%{transform:translateY(5px)} 60%{transform:translateY(-1px)}}
@media (prefers-reduced-motion:reduce){ .kw-cue{transition:none} .kw-cue-down.is-bouncing svg{animation:none} }
@media print{ .kw-cue{display:none!important} }