/* MAIA Architech — shared styles for index.html, daybook.html, finnish-tutor.html */

:root {
  --navy-900:#061625;
  --navy-800:#0a2540;
  --navy-700:#10375a;
  --cyan:#1f9ec9;
  --cyan-deep:#0f7fa8;
  --aqua:#7be0d6;

  --paper:#f7f9fb;
  --surface:#ffffff;
  --surface-2:#f0f4f8;
  --ink:#0f2233;
  --ink-soft:#43596d;
  --ink-faint:#5d7183;
  --link:#0a6a8e;
  --on-accent:#fff;
  --rule:#e3e9f0;
  --rule-soft:#eef2f7;
  --shadow:0 1px 2px rgba(10,37,64,.05), 0 10px 30px -12px rgba(10,37,64,.16);
  --shadow-lg:0 24px 60px -24px rgba(10,37,64,.35);

  --db:#2f7d63;
  --db-ink:#245f4c;
  --db-soft:#e9f4f0;
  --ft:#0a5a96;
  --ft-ink:#08497a;
  --ft-soft:#e7f1f9;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:#081320;
    --surface:#0e1f2f;
    --surface-2:#0b1a28;
    --ink:#e7eff6;
    --ink-soft:#a7bdcf;
    --ink-faint:#8199ad;
    --link:#5bbbe2;
    --on-accent:#06202c;
    --rule:#1c3347;
    --rule-soft:#152838;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px -12px rgba(0,0,0,.6);
    --shadow-lg:0 24px 60px -24px rgba(0,0,0,.8);
    --db:#6dc6a5;
    --db-ink:#8fd8bd;
    --db-soft:#0f2a22;
    --ft:#6db6e8;
    --ft-ink:#93cbf3;
    --ft-soft:#0d2436;
  }
}
:root[data-theme="dark"] {
  --paper:#081320;
  --surface:#0e1f2f;
  --surface-2:#0b1a28;
  --ink:#e7eff6;
  --ink-soft:#a7bdcf;
  --ink-faint:#8199ad;
  --link:#5bbbe2;
  --on-accent:#06202c;
  --rule:#1c3347;
  --rule-soft:#152838;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px -12px rgba(0,0,0,.6);
  --shadow-lg:0 24px 60px -24px rgba(0,0,0,.8);
  --db:#6dc6a5;
  --db-ink:#8fd8bd;
  --db-soft:#0f2a22;
  --ft:#6db6e8;
  --ft-ink:#93cbf3;
  --ft-soft:#0d2436;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; overflow-x:clip; }
body {
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Public Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img { max-width:100%; display:block; }
[hidden] { display:none !important; }
::selection { background:var(--aqua); color:var(--navy-900); }

.wrap { max-width:1040px; margin:0 auto; padding-inline:22px; }
.narrow { max-width:780px; }

h1,h2,h3,.display {
  font-family:'Space Grotesk','Public Sans',sans-serif;
  letter-spacing:-0.02em;
  line-height:1.15;
}

a { color:var(--link); text-underline-offset:3px; }
a:hover { color:var(--cyan); }
:focus-visible { outline:2px solid var(--cyan); outline-offset:3px; border-radius:6px; }

/* ---------- scroll progress ---------- */
#bar {
  position:fixed; top:0; left:0; height:3px; width:0%; pointer-events:none;
  background:linear-gradient(90deg,var(--navy-700),var(--cyan),var(--aqua));
  z-index:100; transition:width .1s linear;
}

/* ---------- nav ---------- */
header.site {
  position:sticky; top:0; z-index:90;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:blur(12px) saturate(1.3);
  -webkit-backdrop-filter:blur(12px) saturate(1.3);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
header.site.stuck { border-bottom-color:var(--rule); }
header.site .wrap { display:flex; align-items:center; justify-content:space-between; gap:14px; padding-block:11px; }
.brand { display:flex; align-items:center; gap:11px; text-decoration:none; color:var(--ink); }
.brand .tile {
  width:34px; height:34px; border-radius:9px; overflow:hidden; flex:none;
  background:#fff; box-shadow:0 2px 8px -2px rgba(10,37,64,.3);
  transition:transform .35s cubic-bezier(.34,1.56,.64,1);
}
.brand:hover .tile { transform:rotate(-6deg) scale(1.06); }
.brand .tile img { width:100%; height:100%; object-fit:cover; }
.brand b { font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:1.02rem; letter-spacing:-0.02em; }
.brand i { display:block; font-style:normal; font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint); font-weight:600; margin-top:-3px; }
nav.top { display:flex; align-items:center; gap:2px; }
nav.top a {
  position:relative; font-size:13.5px; font-weight:600; color:var(--ink-soft);
  text-decoration:none; padding:8px 13px; border-radius:99px;
  transition:color .2s, background .2s;
}
nav.top a:hover { color:var(--ink); background:var(--surface-2); }
nav.top a.active { color:var(--link); }
nav.top a.active::after {
  content:""; position:absolute; left:13px; right:13px; bottom:3px;
  height:2px; border-radius:2px; background:var(--cyan);
}
.icon-btn {
  width:34px; height:34px; margin-left:6px; flex:none;
  border-radius:50%; border:1px solid var(--rule); background:var(--surface);
  color:var(--ink-soft); font-size:14px; cursor:pointer;
  display:inline-flex; align-items:center; justify-content:center;
  transition:transform .3s, color .2s, border-color .2s;
}
.icon-btn:hover { color:var(--link); border-color:var(--cyan); transform:rotate(25deg); }
@media (max-width:760px) { nav.top a[data-nav] { display:none; } }

/* ---------- hero ---------- */
.hero {
  position:relative; isolation:isolate; overflow:hidden;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(31,158,201,.35), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(123,224,214,.18), transparent 60%),
    linear-gradient(160deg,#08203a 0%, var(--navy-800) 45%, #061b30 100%);
  color:#eaf4fb;
}
.hero::after {
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:
    linear-gradient(transparent 95%, rgba(140,200,235,.10) 95%),
    linear-gradient(90deg, transparent 95%, rgba(140,200,235,.10) 95%);
  background-size:44px 44px;
  mask-image:radial-gradient(120% 90% at 50% 20%, #000 35%, transparent 78%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 20%, #000 35%, transparent 78%);
}
.hero.h-db { background:
    radial-gradient(900px 500px at 80% -10%, rgba(47,125,99,.4), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(123,224,214,.16), transparent 60%),
    linear-gradient(160deg,#08203a 0%, var(--navy-800) 45%, #061b30 100%); }
.hero.h-ft { background:
    radial-gradient(900px 500px at 80% -10%, rgba(31,158,201,.42), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(10,90,150,.22), transparent 60%),
    linear-gradient(160deg,#08203a 0%, var(--navy-800) 45%, #061b30 100%); }
#lattice { position:absolute; inset:0; width:100%; height:100%; z-index:2; }
.hero .wrap { position:relative; z-index:3; padding-block:76px 88px; }
@media (max-width:640px) { .hero .wrap { padding-block:52px 62px; } }

.hero-inner { display:grid; grid-template-columns:1fr; gap:0; }
.hero-inner.has-phone { grid-template-columns:1.25fr .75fr; align-items:center; gap:28px; }
@media (max-width:880px) { .hero-inner.has-phone { grid-template-columns:1fr; } }
.hero-inner.has-apps { grid-template-columns:1.1fr .9fr; align-items:center; gap:40px; }
@media (max-width:920px) { .hero-inner.has-apps { grid-template-columns:1fr; gap:30px; } }

/* home hero app cards: the two app icons are the calls to action */
.hero-apps { display:grid; grid-auto-rows:1fr; gap:16px; }
.happ {
  --glow:rgba(31,158,201,.55);
  position:relative; display:flex; align-items:center; gap:18px;
  padding:18px 22px 18px 18px; border-radius:22px; text-decoration:none; color:#eaf4fb;
  background:linear-gradient(135deg,rgba(255,255,255,.11),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  box-shadow:0 22px 50px -28px rgba(0,0,0,.8);
  transition:transform .25s, border-color .25s, box-shadow .3s, background .25s;
  animation:float 7s ease-in-out infinite;
}
.happ.h-db { --glow:rgba(79,185,143,.6); }
.happ.h-ft { --glow:rgba(47,159,214,.6); }
.happ:hover {
  animation-play-state:paused; transform:translateY(-4px); color:#fff;
  border-color:rgba(123,224,214,.6);
  background:linear-gradient(135deg,rgba(255,255,255,.16),rgba(255,255,255,.06));
  box-shadow:0 26px 60px -24px var(--glow);
}
.happ:focus-visible { outline:2px solid var(--aqua); outline-offset:4px; }
.happ img {
  flex:none; width:84px; height:84px; border-radius:20px; display:block;
  box-shadow:0 14px 30px -12px var(--glow), 0 0 0 1px rgba(255,255,255,.18);
}
.happ-txt { flex:1; min-width:0; }
.happ b { display:block; font-family:'Space Grotesk',sans-serif; font-size:1.3rem; font-weight:700; line-height:1.2; }
.happ i { display:block; font-style:normal; font-size:14px; color:#c7e0f0; margin-top:4px; line-height:1.4; }
.happ em { display:block; font-style:normal; font-size:11.5px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:#8fb3cc; margin-top:8px; }
.happ .ar { font-size:1.25rem; color:var(--aqua); transition:transform .2s; }
.happ:hover .ar { transform:translateX(4px); }
@media (max-width:920px) { .hero-apps { max-width:560px; } }
@media (max-width:480px) {
  .happ { gap:14px; padding:14px 16px 14px 14px; }
  .happ img { width:64px; height:64px; border-radius:16px; }
  .happ b { font-size:1.12rem; }
}
@media (prefers-reduced-motion:reduce) { .happ { animation:none; } }

.hero-logo {
  width:82px; height:82px; border-radius:20px; overflow:hidden; background:#fff;
  box-shadow:0 18px 40px -16px rgba(0,0,0,.7); margin-bottom:26px;
  animation:float 6s ease-in-out infinite;
}
.hero-logo img { width:100%; height:100%; object-fit:cover; }
.hero-icon {
  width:64px; height:64px; border-radius:16px; overflow:hidden; margin-bottom:22px;
  box-shadow:0 18px 40px -16px rgba(0,0,0,.7); animation:float 6s ease-in-out infinite;
}
.hero-icon img { width:100%; height:100%; object-fit:cover; }
@keyframes float { 0%,100%{ transform:translateY(0) } 50%{ transform:translateY(-7px) } }

.kicker {
  display:inline-flex; align-items:center; gap:9px;
  font-size:11.5px; font-weight:700; letter-spacing:.16em; text-transform:uppercase;
  color:var(--aqua); margin-bottom:18px;
}
.kicker::before { content:""; width:26px; height:1.5px; background:var(--aqua); }
.kicker.on-db { color:#a6e6cf; }
.kicker.on-db::before { background:#a6e6cf; }
.kicker.on-ft { color:#a9d8f5; }
.kicker.on-ft::before { background:#a9d8f5; }

.hero h1 {
  font-size:clamp(2.15rem,5.4vw,3.6rem); font-weight:700; margin:0 0 18px; max-width:18ch;
}
.hero h1.tight { max-width:15ch; }
.hero h1 .grad {
  background:linear-gradient(95deg,var(--aqua),#bfefff 60%,var(--cyan));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.rotator { display:inline-grid; vertical-align:bottom; }
.rotator span {
  grid-area:1/1; opacity:0; white-space:nowrap;
  background:linear-gradient(95deg,var(--aqua),#cdf2ff);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:cycle 12s infinite;
}
.rotator span:nth-child(1){ animation-delay:0s }
.rotator span:nth-child(2){ animation-delay:3s }
.rotator span:nth-child(3){ animation-delay:6s }
.rotator span:nth-child(4){ animation-delay:9s }
@keyframes cycle {
  0%   { opacity:0; transform:translateY(12px) }
  3%   { opacity:1; transform:translateY(0) }
  22%  { opacity:1; transform:translateY(0) }
  26%  { opacity:0; transform:translateY(-12px) }
  100% { opacity:0; transform:translateY(-12px) }
}

.hero p.lede { font-size:clamp(1.02rem,1.9vw,1.18rem); color:#b9d3e6; max-width:60ch; margin:0 0 16px; }
.hero p.lede a { color:var(--aqua); }
.hero p.lede a:hover { color:#fff; }

.cta { display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }
.btn {
  display:inline-flex; align-items:center; gap:9px;
  font-family:'Space Grotesk',sans-serif; font-size:14.5px; font-weight:600;
  padding:12px 22px; border-radius:99px; text-decoration:none;
  border:1px solid rgba(255,255,255,.22); color:#eaf4fb;
  transition:transform .2s, box-shadow .25s, background .25s, border-color .25s, color .25s;
}
.btn .ar { transition:transform .2s; }
.btn:hover .ar { transform:translateX(4px); }
.btn.solid {
  background:linear-gradient(100deg,var(--cyan),#37c6c0);
  border-color:transparent; color:#04202f;
}
.btn.solid:hover { transform:translateY(-2px); box-shadow:0 16px 34px -14px rgba(55,198,192,.85); color:#04202f; }
.btn.ghost:hover { background:rgba(255,255,255,.09); transform:translateY(-2px); color:#fff; }
.btn.on-db.solid { background:linear-gradient(100deg,#4fb98f,#7be0d6); }
.btn.on-ft.solid { background:linear-gradient(100deg,#2f9fd6,#7be0d6); }

/* hero install tiles. One shape for all four so the row reads as a set; the
   logos inside are the originals (the Play mark lifted from Google's badge
   art, the Store bag from Microsoft's, both untouched). Two columns, so the
   two real stores sit side by side on the first row; an odd last tile
   spans the row. */
.getrow {
  display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px; margin-top:24px; max-width:540px;
}
.gettile {
  display:flex; align-items:center; gap:12px;
  padding:11px 15px; border-radius:13px; text-decoration:none;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.16);
  color:#eaf4fb;
  transition:transform .2s, background .25s, border-color .25s;
}
.gettile:hover { transform:translateY(-2px); background:rgba(255,255,255,.13); border-color:var(--aqua); color:#fff; }
.gettile:focus-visible { outline:2px solid var(--aqua); outline-offset:3px; }
.gettile.is-ask { border-style:dashed; background:rgba(255,255,255,.04); }
.gettile img { flex:none; width:24px; height:24px; display:block; }
.gettile b { display:block; font-family:'Space Grotesk',sans-serif; font-size:13.8px; font-weight:600; line-height:1.25; }
.gettile i { display:block; font-style:normal; font-size:11.4px; color:#9fbdd4; margin-top:2px; line-height:1.35; }
.gettile:hover i { color:#c7e0f0; }
.getrow > .gettile:last-child:nth-child(odd) { grid-column:1 / -1; }
@media (max-width:560px) { .getrow { grid-template-columns:1fr; max-width:none; } }

.plat-line { margin:26px 0 0; font-size:13.5px; color:#9fbdd4; letter-spacing:.01em; }
.plat-line a { color:var(--aqua); }
.plat-line a:hover { color:#fff; }

.trust { display:flex; flex-wrap:wrap; gap:9px; margin-top:34px; }
.trust span {
  font-size:12px; font-weight:600; letter-spacing:.03em;
  padding:6px 13px; border-radius:99px;
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.14); color:#c7e0f0;
}

.hero-phone-wrap { position:relative; display:flex; justify-content:center; }
.hero-phone-wrap .phone { animation:float 7s ease-in-out infinite; }
.hero-phone-glow {
  position:absolute; inset:-30px; z-index:-1; border-radius:50%; filter:blur(40px); opacity:.55;
  background:radial-gradient(circle, var(--accent, var(--cyan)), transparent 70%);
}

/* ---------- stats ---------- */
.stats { display:grid; grid-template-columns:repeat(4,1fr); gap:0; margin-top:-34px; position:relative; z-index:5; }
.stats .box {
  background:var(--surface); border:1px solid var(--rule); border-right:0;
  padding:20px 16px; text-align:center;
}
.stats .box:first-child { border-radius:14px 0 0 14px; }
.stats .box:last-child { border-right:1px solid var(--rule); border-radius:0 14px 14px 0; }
.stats .n { font-family:'Space Grotesk',sans-serif; font-size:1.75rem; font-weight:700; color:var(--ink); line-height:1; }
.stats .l { font-size:11.5px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint); margin-top:7px; }
@media (max-width:700px) {
  .stats { grid-template-columns:repeat(2,1fr); margin-top:-24px; }
  .stats .box { border-right:1px solid var(--rule); border-radius:0 !important; }
  .stats .box:nth-child(n+3) { border-top:0; }
  .stats .box:nth-child(1) { border-radius:14px 0 0 0 !important; }
  .stats .box:nth-child(2) { border-radius:0 14px 0 0 !important; }
  .stats .box:nth-child(3) { border-radius:0 0 0 14px !important; }
  .stats .box:nth-child(4) { border-radius:0 0 14px 0 !important; }
}

/* ---------- icons (Lucide, ISC) ---------- */
.ic svg, .wt-ic svg, .node .ic svg {
  width:22px; height:22px; display:block;
  fill:none; stroke:currentColor; stroke-width:1.75; stroke-linecap:round; stroke-linejoin:round;
}
.brand-ic { width:15px; height:15px; fill:currentColor; stroke:none; flex:none; }
/* the globe is drawn, not a brand mark, so it needs strokes rather than a fill */
.brand-ic.is-line { fill:none; stroke:currentColor; stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }

/* ---------- available-on strip ---------- */
.avail {
  background:var(--surface); border:1px solid var(--rule); border-radius:16px;
  box-shadow:var(--shadow); margin-top:-34px; position:relative; z-index:5;
  padding:18px 24px; display:flex; flex-wrap:wrap; align-items:center; gap:10px 12px;
}
.avail-label {
  font-size:11.5px; font-weight:700; letter-spacing:.09em; text-transform:uppercase;
  color:var(--ink-faint); margin-right:4px;
}
.avail-badge {
  display:inline-flex; align-items:center; gap:8px; font-size:13.5px; font-weight:600;
  padding:7px 15px; border-radius:99px; background:var(--surface-2); border:1px solid var(--rule); color:var(--ink);
}
.avail-note { font-size:13px; color:var(--ink-faint); margin-left:auto; }
@media (max-width:700px) { .avail { margin-top:-24px; padding:16px 18px; } .avail-note { margin-left:0; } }

/* ---------- small standalone note line ---------- */
p.note { margin:26px 0 0; font-size:14.6px; color:var(--ink-soft); max-width:60ch; }

/* ---------- sections ---------- */
section { padding-block:72px; scroll-margin-top:70px; }
section.alt { background:var(--surface-2); border-block:1px solid var(--rule-soft); }
.sec-head { margin-bottom:34px; }
.sec-head .num {
  font-family:'Space Grotesk',sans-serif; font-size:12px; font-weight:700;
  letter-spacing:.18em; color:var(--link); display:block; margin-bottom:10px;
}
.sec-head h2 { font-size:clamp(1.6rem,3.2vw,2.15rem); font-weight:700; margin:0 0 10px; }
.sec-head p { color:var(--ink-soft); max-width:62ch; margin:0; }

.js .reveal { opacity:0; transform:translateY(26px); transition:opacity .75s cubic-bezier(.2,.7,.3,1), transform .75s cubic-bezier(.2,.7,.3,1); }
.js .reveal.in { opacity:1; transform:none; }

/* ---------- app cards ---------- */
.apps { display:grid; grid-template-columns:repeat(auto-fit,minmax(310px,1fr)); gap:20px; }
.app {
  position:relative; background:var(--surface); border:1px solid var(--rule);
  border-radius:18px; padding:26px; box-shadow:var(--shadow);
  display:flex; flex-direction:column;
  transition:transform .25s cubic-bezier(.2,.7,.3,1), box-shadow .3s, border-color .3s;
}
.app::before {
  content:""; position:absolute; inset:-1px; border-radius:19px; padding:1px; pointer-events:none;
  background:linear-gradient(135deg,var(--accent),transparent 55%);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude;
  opacity:0; transition:opacity .35s;
}
.app:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.app:hover::before { opacity:1; }
.app.a-db { --accent:var(--db); }
.app.a-ft { --accent:var(--ft); }
.app .top { display:flex; align-items:center; gap:14px; margin-bottom:16px; }
.app .top img {
  width:58px; height:58px; border-radius:14px; flex:none;
  box-shadow:0 6px 16px -6px rgba(10,37,64,.45);
  transition:transform .35s cubic-bezier(.34,1.56,.64,1);
}
.app:hover .top img { transform:scale(1.07) rotate(-4deg); }
.app h3 { font-size:1.3rem; font-weight:700; margin:0; }
.app .plat { font-size:11.5px; font-weight:600; color:var(--ink-faint); letter-spacing:.03em; }
.app > p { color:var(--ink-soft); font-size:14.8px; flex-grow:1; margin:0 0 18px; }
.pill {
  display:inline-block; font-size:11px; font-weight:700; letter-spacing:.07em; text-transform:uppercase;
  padding:3px 9px; border-radius:99px; background:var(--accent-soft,var(--surface-2)); color:var(--accent);
  margin-left:8px; vertical-align:2px;
}
.app.a-db .pill { background:var(--db-soft); color:var(--db-ink); }
.app.a-ft .pill { background:var(--ft-soft); color:var(--ft-ink); }
.app .links { display:flex; flex-wrap:wrap; gap:8px; }
.app .links a {
  font-size:13.5px; font-weight:600; text-decoration:none;
  padding:8px 15px; border-radius:99px; border:1px solid var(--rule);
  color:var(--ink); display:inline-flex; align-items:center; gap:6px;
  transition:background .2s, border-color .2s, color .2s, transform .2s;
}
.app .links a.go { background:var(--accent); border-color:var(--accent); color:var(--on-accent); }
.app .links a:hover { transform:translateY(-2px); border-color:var(--accent); color:var(--accent); }
.app .links a.go:hover { color:var(--on-accent); filter:brightness(1.08); }

.founder {
  display:grid; grid-template-columns:auto 1fr; gap:22px; align-items:center;
  background:var(--surface); border:1px solid var(--rule); border-radius:18px;
  padding:26px 28px; box-shadow:var(--shadow); margin-top:20px;
}
@media (max-width:560px) { .founder { grid-template-columns:1fr; text-align:center; } .founder .fmark { margin:0 auto; } }
.founder .fmark {
  width:58px; height:58px; border-radius:50%; flex:none;
  background:linear-gradient(135deg,var(--navy-700),var(--cyan-deep));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:22px;
}
.founder p { margin:0; color:var(--ink-soft); font-size:14.6px; }
.founder b { color:var(--ink); }

.process { display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:0; counter-reset:proc; margin-top:8px; }
.process .pstep {
  position:relative; padding:0 18px 0 0; counter-increment:proc;
}
.process .pstep::before {
  content:counter(proc,decimal-leading-zero);
  font-family:'Space Grotesk',sans-serif; font-size:12px; font-weight:700;
  color:var(--link); letter-spacing:.08em; display:block; margin-bottom:8px;
}
.process .pstep h4 { font-size:15px; font-weight:700; margin:0 0 6px; }
.process .pstep p { font-size:13.6px; color:var(--ink-soft); margin:0; }
.process .pstep::after {
  content:"→"; position:absolute; right:-6px; top:1px; color:var(--ink-faint); font-size:15px;
}
.process .pstep:last-child::after { content:""; }
@media (max-width:760px) { .process .pstep::after { display:none; } }

/* ---------- data flow widget ---------- */
.flow-card { background:var(--surface); border:1px solid var(--rule); border-radius:18px; padding:26px; box-shadow:var(--shadow); }
.flow { display:grid; grid-template-columns:1fr minmax(90px,1.2fr) 1fr; align-items:center; gap:10px; }
.node {
  border-radius:14px; padding:16px 12px; text-align:center;
  border:1px solid var(--rule); background:var(--surface-2);
  transition:border-color .35s, background .35s, box-shadow .35s;
}
.node .ic { display:flex; justify-content:center; color:var(--ink-faint); transition:color .35s; }
.node.lit .ic { color:var(--cyan); }
.node b { display:block; font-family:'Space Grotesk',sans-serif; font-size:14px; margin-top:9px; }
.node small { display:block; font-size:11.5px; color:var(--ink-faint); }
.node.lit { border-color:var(--cyan); background:color-mix(in srgb,var(--cyan) 9%,var(--surface)); box-shadow:0 0 0 4px color-mix(in srgb,var(--cyan) 12%,transparent); }
.node.flash { animation:nodeFlash .7s ease-out; }
@keyframes nodeFlash {
  0% { box-shadow:0 0 0 0 color-mix(in srgb,var(--cyan) 45%,transparent); }
  70% { box-shadow:0 0 0 14px color-mix(in srgb,var(--cyan) 0%,transparent); }
  100% { box-shadow:0 0 0 4px color-mix(in srgb,var(--cyan) 12%,transparent); }
}
.track { position:relative; height:2px; background:repeating-linear-gradient(90deg,var(--rule) 0 7px,transparent 7px 14px); border-radius:2px; display:flex; align-items:center; justify-content:center; }
.track-arrow {
  background:var(--surface); padding:4px 12px; border-radius:99px; line-height:1;
  color:var(--ink-faint); font-size:26px; font-weight:700; opacity:.55;
  transition:color .3s, opacity .3s, transform .3s;
}
.track.stay .track-arrow { opacity:.25; transform:scale(.85); animation:none; }
@keyframes arrowFlow { 0%,100% { transform:scale(1.25) translateX(0); } 50% { transform:scale(1.25) translateX(7px); } }
.track.out .track-arrow { color:var(--cyan); opacity:1; animation:arrowFlow 1s ease-in-out infinite; }
.chips { display:flex; flex-wrap:wrap; gap:8px; margin-top:24px; }
.chip {
  font-family:inherit; font-size:13px; font-weight:600; cursor:pointer;
  padding:7px 14px; border-radius:99px; border:1px solid var(--rule);
  background:var(--surface); color:var(--ink-soft);
  transition:border-color .2s, color .2s, background .2s, transform .15s;
}
.chip:hover { transform:translateY(-2px); color:var(--ink); border-color:var(--ink-faint); }
.chip.on { background:var(--navy-800); border-color:var(--navy-800); color:#eaf4fb; }
:root[data-theme="dark"] .chip.on, :root:not([data-theme="light"]) .chip.on { background:var(--cyan); border-color:var(--cyan); color:#04202f; }
.flow-note {
  margin-top:20px; padding:16px 18px; border-radius:12px;
  background:var(--surface-2); border:1px solid var(--rule-soft);
  font-size:14.5px; color:var(--ink-soft); min-height:74px;
}
.flow-note b { color:var(--ink); }
@media (max-width:640px) {
  .flow { grid-template-columns:1fr; }
  .track { height:auto; min-height:56px; width:3px; margin:0 auto; background:repeating-linear-gradient(180deg,var(--rule) 0 7px,transparent 7px 14px); }
  .track-arrow { transform:rotate(90deg); }
  .track.stay .track-arrow { transform:rotate(90deg) scale(.85); }
  @keyframes arrowFlowV { 0%,100% { transform:rotate(90deg) scale(1.25) translateX(0); } 50% { transform:rotate(90deg) scale(1.25) translateX(7px); } }
  .track.out .track-arrow { animation-name:arrowFlowV; }
}

/* ---------- product showcase ---------- */
.show { display:grid; grid-template-columns:1fr 300px; gap:48px; align-items:start; }
@media (max-width:880px) { .show { grid-template-columns:1fr; gap:34px; } }
.phone {
  position:relative; width:262px; margin:0 auto;
  border-radius:34px; padding:9px;
  background:linear-gradient(160deg,#243b50,#0d1c2a);
  box-shadow:var(--shadow-lg), 0 0 0 1px rgba(255,255,255,.06) inset;
}
.phone.sm { width:180px; border-radius:26px; padding:7px; }
.phone::before {
  content:""; position:absolute; top:17px; left:50%; transform:translateX(-50%);
  width:64px; height:5px; border-radius:99px; background:rgba(255,255,255,.22); z-index:3;
}
.phone.sm::before { width:44px; top:12px; }
.screen { position:relative; border-radius:26px; overflow:hidden; background:#0b1118; aspect-ratio:520/1154; }
.phone.sm .screen { border-radius:20px; }
.screen img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:0; transition:opacity .55s ease; }
.screen img.on { opacity:1; }
.shotnav { display:flex; flex-wrap:wrap; gap:7px; justify-content:center; margin-top:16px; }
.shotnav button {
  font-family:inherit; font-size:12px; font-weight:600; cursor:pointer;
  padding:6px 12px; border-radius:99px; border:1px solid var(--rule);
  background:var(--surface); color:var(--ink-faint);
  transition:all .2s;
}
.shotnav button:hover { color:var(--ink); }
.shotnav button.on { background:var(--accent); border-color:var(--accent); color:var(--on-accent); }
.show.s-db { --accent:var(--db); }
.show.s-ft { --accent:var(--ft); }

.feat { display:grid; grid-template-columns:repeat(auto-fit,minmax(215px,1fr)); gap:14px; margin-top:6px; }
.f {
  background:var(--surface); border:1px solid var(--rule); border-radius:13px;
  padding:16px 17px; transition:transform .22s, box-shadow .22s, border-color .22s;
}
.f:hover { transform:translateY(-3px); box-shadow:var(--shadow); border-color:var(--accent); }
.f h4 { font-family:'Space Grotesk',sans-serif; font-size:14.5px; font-weight:600; margin:0 0 5px; }
.f p { margin:0; font-size:13.8px; color:var(--ink-soft); line-height:1.55; }

.lead-in { font-size:1.12rem; color:var(--ink-soft); max-width:60ch; }
h3.sub { font-size:1.18rem; font-weight:600; margin:38px 0 12px; }

.scope {
  border-left:3px solid var(--accent,var(--cyan)); border-radius:0 12px 12px 0;
  background:var(--accent-bg,var(--surface-2)); padding:17px 19px; margin-bottom:13px;
}
.scope.db { --accent:var(--db); --accent-bg:var(--db-soft); }
.scope.ft { --accent:var(--ft); --accent-bg:var(--ft-soft); }
.scope h4 { font-family:'Space Grotesk',sans-serif; font-size:14.8px; font-weight:600; margin:0 0 6px; }
.scope p { margin:0; font-size:14.3px; color:var(--ink-soft); }
.scope p + p { margin-top:8px; }
.scope code {
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12.5px;
  background:var(--surface); border:1px solid var(--rule); border-radius:5px; padding:1px 6px; word-break:break-all;
}
.badge {
  display:inline-block; font-size:10.5px; font-weight:700; letter-spacing:.07em; text-transform:uppercase;
  padding:2px 8px; border-radius:99px; margin-left:7px; vertical-align:2px;
  background:var(--surface); border:1px solid var(--rule); color:var(--ink-faint);
}

ul.ticks { list-style:none; padding:0; margin:0; }
ul.ticks li { position:relative; padding-left:28px; margin-bottom:9px; color:var(--ink-soft); }
ul.ticks li::before {
  content:"✕"; position:absolute; left:0; top:0;
  width:19px; height:19px; border-radius:50%; font-size:10px; font-weight:700;
  display:flex; align-items:center; justify-content:center; margin-top:4px;
  background:var(--db-soft); color:var(--db-ink);
}

dl.spec { display:grid; grid-template-columns:max-content 1fr; gap:10px 26px; margin:0; font-size:14.4px; }
dl.spec dt { font-size:11px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint); padding-top:4px; }
dl.spec dd { margin:0; color:var(--ink-soft); }
dl.spec code { font-family:ui-monospace,Consolas,monospace; font-size:12.5px; word-break:break-all; }
@media (max-width:560px) { dl.spec { grid-template-columns:1fr; gap:2px; } dl.spec dd { margin-bottom:13px; } }

.doclinks { display:flex; flex-wrap:wrap; gap:9px; margin-top:26px; }
.doclinks a {
  font-size:13.5px; font-weight:600; text-decoration:none; color:var(--ink);
  padding:9px 16px; border-radius:99px; border:1px solid var(--rule); background:var(--surface);
  display:inline-flex; align-items:center; gap:7px; transition:all .2s;
}
.doclinks a:hover { border-color:var(--cyan); color:var(--link); transform:translateY(-2px); }

/* ---------- animated "how to use" walkthrough ---------- */
.wt { display:grid; grid-template-columns:1fr 300px; gap:48px; align-items:start; }
body[data-page="daybook"] .wt { --accent:var(--db); }
body[data-page="finnish-tutor"] .wt,
body[data-page="english-tutor"] .wt { --accent:var(--ft); }
@media (max-width:880px) { .wt { grid-template-columns:1fr; gap:30px; } }
.wt-rail { position:relative; padding-left:54px; }
.wt-rail::before {
  content:""; position:absolute; left:20px; top:6px; bottom:6px; width:2px;
  background:var(--rule);
}
.wt-rail .wt-fill {
  position:absolute; left:20px; top:6px; width:2px; height:0%;
  background:linear-gradient(180deg,var(--accent,var(--cyan)),var(--aqua));
  transition:height .25s linear; border-radius:2px;
}
.wt-step { position:relative; padding-bottom:40px; cursor:pointer; }
.wt-step:last-child { padding-bottom:4px; }
.wt-dot {
  position:absolute; left:-54px; top:0; width:41px; height:41px; border-radius:50%;
  background:var(--surface); border:2px solid var(--rule); color:var(--ink-faint);
  display:flex; align-items:center; justify-content:center;
  font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:15px;
  transition:border-color .35s, color .35s, background .35s, box-shadow .35s, transform .3s;
}
.wt-step.lit .wt-dot {
  border-color:var(--accent,var(--cyan)); color:var(--on-accent); background:var(--accent,var(--cyan));
  box-shadow:0 0 0 5px color-mix(in srgb,var(--accent,var(--cyan)) 20%,transparent);
  transform:scale(1.06);
}
.wt-card {
  border-radius:14px; padding:16px 18px; border:1px solid transparent;
  transition:background .3s, border-color .3s, transform .3s;
}
.wt-step.lit .wt-card {
  background:var(--surface); border-color:var(--rule); box-shadow:var(--shadow);
}
.wt-card h4 { font-size:15.5px; font-weight:700; margin:0 0 6px; display:flex; align-items:center; gap:11px; }
.wt-card p { margin:0; font-size:14.2px; color:var(--ink-soft); max-width:52ch; }
.wt-ic {
  width:32px; height:32px; border-radius:9px; flex:none;
  display:flex; align-items:center; justify-content:center;
  background:var(--surface-2); border:1px solid var(--rule-soft);
  color:var(--ink-faint); transform:scale(1);
  transition:color .35s, border-color .35s;
}
.wt-ic svg { width:18px; height:18px; }
.wt-step.lit .wt-ic { color:var(--accent,var(--cyan)); border-color:var(--accent,var(--cyan)); }
.wt-step.lit .wt-ic.a-tap { animation:icTap 1.1s ease-in-out .1s 1; }
.wt-step.lit .wt-ic.a-shot { animation:icShot .5s ease-out .1s 1; }
.wt-step.lit .wt-ic.a-write { animation:icWrite .9s ease-in-out .1s 1; }
.wt-step.lit .wt-ic.a-mic { animation:icMic 1.2s ease-in-out .1s 2; }
.wt-step.lit .wt-ic.a-flip { animation:icFlip .8s cubic-bezier(.34,1.56,.64,1) .1s 1; }
.wt-step.lit .wt-ic.a-rise { animation:icRise .7s cubic-bezier(.34,1.56,.64,1) .1s 1; }
.wt-step.lit .wt-ic.a-pin { animation:icPin .8s cubic-bezier(.34,1.56,.64,1) .1s 1; }
.wt-step.lit .wt-ic.a-gear { animation:icGear 1.4s linear .1s 1; }
@keyframes icTap { 0%,100%{ transform:scale(1) } 30%{ transform:scale(.82) } 55%{ transform:scale(1.14) } }
@keyframes icShot { 0%{ box-shadow:0 0 0 0 color-mix(in srgb,var(--accent,var(--cyan)) 45%,transparent) } 70%{ box-shadow:0 0 0 10px transparent } 100%{ box-shadow:0 0 0 0 transparent } }
@keyframes icWrite { 0%{ transform:rotate(0) } 25%{ transform:rotate(-9deg) } 50%{ transform:rotate(6deg) } 75%{ transform:rotate(-4deg) } 100%{ transform:rotate(0) } }
@keyframes icMic { 0%,100%{ transform:scale(1); box-shadow:0 0 0 0 color-mix(in srgb,var(--accent,var(--cyan)) 35%,transparent) } 50%{ transform:scale(1.12); box-shadow:0 0 0 8px transparent } }
@keyframes icFlip { 0%{ transform:rotateY(0) } 100%{ transform:rotateY(360deg) } }
@keyframes icRise { 0%{ transform:translateY(6px); opacity:.5 } 100%{ transform:translateY(0); opacity:1 } }
@keyframes icPin { 0%{ transform:translateY(-6px) scale(.8) } 60%{ transform:translateY(1px) scale(1.08) } 100%{ transform:translateY(0) scale(1) } }
@keyframes icGear { 0%{ transform:rotate(0) } 100%{ transform:rotate(180deg) } }

.wt-phone-wrap { position:sticky; top:90px; display:flex; flex-direction:column; align-items:center; gap:14px; }
@media (max-width:880px) { .wt-phone-wrap { position:static; margin:0 auto; } }
.wt-caption { font-size:13px; font-weight:600; color:var(--ink-faint); text-align:center; min-height:18px; }

/* ---------- tester ---------- */
.tester {
  background:var(--surface); border:1px solid var(--rule); border-top:3px solid var(--accent);
  border-radius:16px; padding:26px 28px; margin-top:34px; box-shadow:var(--shadow);
}
.tester.s-db { --accent:var(--db); }
.tester.s-ft { --accent:var(--ft); }
.tester h3 { font-size:1.2rem; font-weight:700; margin:0 0 8px; display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.tester h3 .live {
  font-size:10.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  padding:3px 9px; border-radius:99px; background:var(--accent); color:var(--on-accent);
}
.tester > p { color:var(--ink-soft); font-size:14.8px; margin:0; max-width:60ch; }
ol.steps { list-style:none; margin:22px 0 0; padding:0; display:grid; gap:18px; }
ol.steps li { display:flex; gap:15px; align-items:flex-start; }
ol.steps .sn {
  flex:none; width:27px; height:27px; border-radius:50%; margin-top:1px;
  background:var(--accent); color:var(--on-accent);
  font-family:'Space Grotesk',sans-serif; font-size:13.5px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
}
ol.steps b { display:block; font-family:'Space Grotesk',sans-serif; font-size:15px; font-weight:600; margin-bottom:3px; }
ol.steps p { margin:0 0 10px; font-size:14.2px; color:var(--ink-soft); max-width:56ch; }
.step-go {
  display:inline-flex; align-items:center; gap:8px;
  font-size:14px; font-weight:600; text-decoration:none;
  padding:10px 18px; border-radius:99px;
  background:var(--accent); color:var(--on-accent); border:1px solid var(--accent);
  transition:transform .2s, box-shadow .25s, filter .2s;
}
.step-go:hover { transform:translateY(-2px); filter:brightness(1.07); box-shadow:0 12px 26px -12px var(--accent); }
.step-go .ar { transition:transform .2s; }
.step-go:hover .ar { transform:translateX(3px); }
.step-alt { display:block; margin-top:10px; font-size:12.8px; color:var(--ink-faint); max-width:56ch; line-height:1.55; }
.step-alt a { font-weight:600; }
.play-badge { display:inline-block; margin-top:2px; transition:transform .2s, filter .2s; }
.play-badge:hover { transform:translateY(-2px); filter:brightness(1.05); }
.play-badge img { width:186px; height:auto; }
.tester .fine {
  margin:22px 0 0; padding-top:16px; border-top:1px solid var(--rule-soft);
  font-size:12.8px; color:var(--ink-faint); max-width:66ch; line-height:1.6;
}
.card-test {
  display:inline-flex; align-items:center; gap:6px;
  font-size:13.5px; font-weight:600; text-decoration:none;
  padding:8px 15px; border-radius:99px;
  border:1px dashed var(--accent); color:var(--accent); background:transparent;
  transition:background .2s, transform .2s;
}
.card-test:hover, .app .links a.card-test:hover { transform:translateY(-2px); background:var(--accent); color:var(--on-accent); border-style:solid; }

/* ---------- faq ---------- */
.faq details {
  background:var(--surface); border:1px solid var(--rule); border-radius:13px;
  margin-bottom:11px; overflow:hidden; transition:border-color .25s, box-shadow .25s;
}
.faq details[open] { border-color:var(--cyan); box-shadow:var(--shadow); }
.faq summary {
  cursor:pointer; list-style:none; padding:16px 52px 16px 20px; position:relative;
  font-family:'Space Grotesk',sans-serif; font-weight:600; font-size:15.2px;
}
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after {
  content:"+"; position:absolute; right:20px; top:50%; transform:translateY(-50%);
  font-size:20px; font-weight:400; color:var(--link); transition:transform .3s;
}
.faq details[open] summary::after { transform:translateY(-50%) rotate(45deg); }
.faq .ans { padding:0 20px 18px; color:var(--ink-soft); font-size:14.6px; }

/* ---------- contact / footer ---------- */
.contact-grid { display:grid; grid-template-columns:1fr 1.15fr; gap:38px; align-items:start; }
@media (max-width:820px) { .contact-grid { grid-template-columns:1fr; gap:28px; } }
.cf { display:grid; gap:14px; }
.cf-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
@media (max-width:520px) { .cf-row { grid-template-columns:1fr; } }
.cf label { display:block; font-size:11.5px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:#8fb0c9; margin-bottom:6px; }
.cf input, .cf textarea {
  width:100%; font-family:inherit; font-size:15px; color:#eaf4fb;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.18);
  border-radius:11px; padding:11px 14px; transition:border-color .2s, background .2s;
}
.cf textarea { resize:vertical; min-height:118px; line-height:1.55; }
.cf input::placeholder, .cf textarea::placeholder { color:#7d9ab2; }
.cf input:focus, .cf textarea:focus { outline:none; border-color:var(--aqua); background:rgba(255,255,255,.1); }
.cf input[aria-invalid="true"], .cf textarea[aria-invalid="true"] { border-color:#f0a3a3; }
.cf .hp { position:absolute; left:-9999px; width:1px; height:1px; opacity:0; }
.btn-send {
  justify-self:start; font-family:'Space Grotesk',sans-serif; font-size:14.5px; font-weight:600;
  padding:12px 24px; border-radius:99px; cursor:pointer; border:0;
  background:linear-gradient(100deg,var(--cyan),#37c6c0); color:#04202f;
  transition:transform .2s, box-shadow .25s, opacity .2s;
}
.btn-send:hover { transform:translateY(-2px); box-shadow:0 14px 30px -14px rgba(55,198,192,.9); }
.btn-send[disabled] { opacity:.6; cursor:default; transform:none; box-shadow:none; }
.cf-status { margin:0; font-size:13.6px; min-height:20px; color:#a9c6db; }
.cf-status.ok { color:var(--aqua); font-weight:600; }
.cf-status.err { color:#ffb4b4; }
.contact-card .why { margin-top:18px; font-size:13.2px; color:#8fb0c9; line-height:1.65; }

.contact-card {
  background:linear-gradient(150deg,var(--navy-800),#0b2a47 60%,#08203a);
  border-radius:20px; padding:36px; color:#dbe9f4; box-shadow:var(--shadow-lg);
}
.contact-card h2 { color:#fff; font-size:1.7rem; margin:0 0 10px; }
.contact-card p { color:#a9c6db; max-width:52ch; }
.contact-card a.mail {
  display:inline-flex; align-items:center; gap:9px; margin-top:12px;
  font-family:'Space Grotesk',sans-serif; font-size:1.02rem; font-weight:600;
  color:var(--aqua); text-decoration:none; word-break:break-all;
}
.contact-card a.mail:hover { color:#fff; }
.contact-meta { display:flex; flex-wrap:wrap; gap:26px; margin-top:26px; padding-top:22px; border-top:1px solid rgba(255,255,255,.14); }
.contact-meta div { font-size:13.5px; }
.contact-meta span { display:block; font-size:10.5px; font-weight:700; letter-spacing:.11em; text-transform:uppercase; color:#7fa3bf; margin-bottom:3px; }

footer.site { padding-block:34px 44px; border-top:1px solid var(--rule); font-size:13.5px; color:var(--ink-faint); }
footer.site .row { display:flex; flex-wrap:wrap; gap:12px 24px; align-items:center; justify-content:space-between; }
footer.site a { color:var(--ink-soft); text-decoration:none; margin-right:18px; }
footer.site a:hover { color:var(--link); }
footer.site .fine { margin-top:16px; font-size:12.5px; }

/* ---------- app-page sub-nav (crumb + switcher) ---------- */
.subnav { border-bottom:1px solid var(--rule-soft); background:var(--surface-2); }
.subnav .wrap { display:flex; align-items:center; justify-content:space-between; gap:12px; padding-block:11px; flex-wrap:wrap; }
.crumb { font-size:13px; color:var(--ink-faint); display:flex; align-items:center; gap:7px; }
.crumb a { color:var(--ink-soft); text-decoration:none; font-weight:600; }
.crumb a:hover { color:var(--link); }
.switch-app {
  display:inline-flex; align-items:center; gap:7px; font-size:13px; font-weight:600;
  text-decoration:none; color:var(--ink); padding:6px 13px; border-radius:99px;
  border:1px solid var(--rule); background:var(--surface); transition:all .2s;
}
.switch-app:hover { border-color:var(--accent,var(--cyan)); color:var(--accent,var(--cyan)); transform:translateY(-1px); }
.switch-app img { width:18px; height:18px; border-radius:5px; }

.top-btn {
  position:fixed; right:18px; bottom:18px; width:42px; height:42px; border-radius:50%;
  background:var(--navy-800); color:#fff; display:flex; align-items:center; justify-content:center;
  text-decoration:none; box-shadow:0 12px 28px -10px rgba(0,0,0,.6);
  opacity:0; pointer-events:none; transform:translateY(10px);
  transition:opacity .3s, transform .3s; z-index:80;
}
.top-btn.show { opacity:1; pointer-events:auto; transform:none; }
.top-btn:hover { background:var(--cyan-deep); color:#fff; }

/* ---------- guided tour video ---------- */
.tourvid {
  position:relative; aspect-ratio:16/9; max-width:960px; margin:0 auto;
  border-radius:20px; overflow:hidden; background:#0b0a09;
  border:1px solid var(--rule); box-shadow:var(--shadow-lg);
}
.tourvid iframe { position:absolute; inset:0; width:100%; height:100%; border:0; display:block; }
.tourvid video { position:absolute; inset:0; width:100%; height:100%; display:block; background:#000; object-fit:contain; }
.vidlang {
  display:flex; justify-content:center; gap:6px; margin:0 auto 14px;
  padding:4px; width:max-content; border:1px solid var(--rule);
  border-radius:999px; background:var(--surface);
}
.vidlang button {
  font:inherit; font-size:13.5px; font-weight:600; color:var(--ink-soft);
  background:none; border:0; border-radius:999px; padding:6px 16px; cursor:pointer;
}
.vidlang button[aria-pressed="true"] { background:var(--db-soft); color:var(--db-ink); box-shadow:inset 0 0 0 1px var(--db); }
.vidlang button:focus-visible { outline:2px solid var(--cyan); outline-offset:2px; }
.tourvid-cap {
  margin:11px auto 0; max-width:960px; font-size:12.5px;
  color:var(--ink-faint); text-align:center;
}

/* ---------- free Gemini key walkthrough ---------- */
.keyvid { display:grid; grid-template-columns:minmax(0,282px) 1fr; gap:36px; align-items:start; }
.keyvid-media { position:relative; }
.keyvid video {
  width:100%; height:auto; display:block; aspect-ratio:9/16; border-radius:20px;
  background:#0b0a09; border:1px solid var(--rule); box-shadow:var(--shadow-lg);
}
.keyvid-cap { margin:11px 0 0; font-size:12.5px; color:var(--ink-faint); text-align:center; }
.keysteps { margin:0; padding:0; list-style:none; counter-reset:ks; }
.keysteps li { position:relative; padding:0 0 16px 43px; counter-increment:ks; }
.keysteps li::before {
  content:counter(ks); position:absolute; left:0; top:1px;
  width:28px; height:28px; border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  font-family:'Space Grotesk',sans-serif; font-size:12.5px; font-weight:700;
  background:var(--accent,var(--cyan)); color:var(--on-accent);
}
.keysteps li::after {
  content:""; position:absolute; left:13.5px; top:33px; bottom:5px;
  width:1px; background:var(--rule);
}
.keysteps li:last-child { padding-bottom:0; }
.keysteps li:last-child::after { display:none; }
.keysteps h4 { font-family:'Space Grotesk',sans-serif; font-size:14.5px; font-weight:600; margin:3px 0 4px; }
.keysteps p { margin:0; font-size:13.8px; color:var(--ink-soft); line-height:1.55; }
.keysteps code {
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12.4px;
  background:var(--surface-2); border:1px solid var(--rule);
  border-radius:5px; padding:1px 6px; word-break:break-all;
}
@media (max-width:880px) {
  .keyvid { grid-template-columns:1fr; gap:26px; }
  .keyvid-media { max-width:282px; margin:0 auto; }
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after { animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  html { scroll-behavior:auto; }
  .js .reveal { opacity:1 !important; transform:none !important; }
  .rotator span:first-child { opacity:1; }
}

/* ---------- Daybook: wide Windows screenshots ---------- */
.screen.wide {
  aspect-ratio:16/9; border-radius:18px; background:var(--surface-2);
  border:1px solid var(--rule); box-shadow:var(--shadow-lg);
}

/* ---------- Windows: the Store screenshots inside a desktop window (both app pages) ---------- */
.deskwrap { --accent:var(--db); }
body[data-page="finnish-tutor"] .deskwrap,
body[data-page="english-tutor"] .deskwrap { --accent:var(--ft); }
.deskwrap { max-width:960px; margin:0 auto; }
.desk {
  border-radius:16px; overflow:hidden; background:var(--surface);
  border:1px solid var(--rule); box-shadow:var(--shadow-lg);
}
.desk-bar {
  display:flex; align-items:center; gap:7px; padding:10px 14px;
  border-bottom:1px solid var(--rule); background:var(--surface-2);
  font-size:12px; font-weight:600; color:var(--ink-faint);
}
.desk-bar i { width:11px; height:11px; border-radius:50%; background:var(--rule); }
.desk-bar i:nth-child(1) { background:#ec6a5e; }
.desk-bar i:nth-child(2) { background:#f4bf4f; }
.desk-bar i:nth-child(3) { background:#61c554; }
.desk-bar span { margin-left:10px; }
.desk .screen.wide { border-radius:0; border:0; box-shadow:none; }
.deskrail { display:grid; grid-template-columns:repeat(8,minmax(0,1fr)); gap:8px; margin-top:14px; }
.deskrail button {
  padding:0; cursor:pointer; background:none; border:2px solid transparent; border-radius:9px;
  overflow:hidden; opacity:.55; transition:opacity .25s, border-color .25s, transform .2s;
}
.deskrail button:hover { opacity:.9; transform:translateY(-2px); }
.deskrail button.on { opacity:1; border-color:var(--accent); }
.deskrail img { width:100%; height:auto; aspect-ratio:16/9; object-fit:cover; }
@media (max-width:640px) { .deskrail { grid-template-columns:repeat(4,minmax(0,1fr)); } }


/* ---------- Windows screenshots open large ---------- */
.desk { position:relative; }
.desk-hint { margin-left:auto; font-style:normal; font-size:11.5px; opacity:0; transition:opacity .25s; }
.desk:hover .desk-hint { opacity:1; }
.desk-open { position:absolute; left:0; right:0; bottom:0; top:39px; z-index:2; border:0; padding:0; background:none; cursor:zoom-in; }
.desk-open:focus-visible { outline:3px solid var(--accent); outline-offset:-3px; }
/* one arrow style for the whole site: frosted glass, drawn chevrons, fills with the page accent on hover.
   Used by the Windows gallery, the enlarged view (and its close button) and the phone-screen reel. */
.gal-arrow, .lb-arrow, .lb-x, .reel-arrow {
  width:56px; height:56px; border-radius:50%; padding:0; cursor:pointer; flex:none;
  display:grid; place-items:center; color:#fff;
  background:linear-gradient(145deg,rgba(22,40,58,.62),rgba(6,16,26,.78));
  border:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:blur(12px) saturate(1.4); backdrop-filter:blur(12px) saturate(1.4);
  box-shadow:0 14px 34px -12px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.18);
  transition:opacity .3s, transform .3s cubic-bezier(.2,.7,.3,1), background .3s, border-color .3s, box-shadow .3s;
}
.gal-arrow svg, .lb-arrow svg, .lb-x svg, .reel-arrow svg { grid-area:1/1; }
.gal-arrow > svg:not(.gal-ring), .lb-arrow > svg, .lb-x > svg, .reel-arrow > svg {
  width:24px; height:24px; fill:none; stroke:currentColor; stroke-width:2.4; stroke-linecap:round; stroke-linejoin:round;
  filter:drop-shadow(0 1px 2px rgba(0,0,0,.45)); transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.lb-x > svg { width:20px; height:20px; }
.gal-arrow:hover, .lb-arrow:hover, .lb-x:hover, .reel-arrow:hover {
  background:var(--accent,var(--cyan)); border-color:transparent; color:#fff;
  box-shadow:0 16px 36px -10px var(--accent,var(--cyan)), 0 0 0 6px rgba(255,255,255,.08);
}
[data-dir="-1"]:is(.gal-arrow,.lb-arrow,.reel-arrow):hover { transform:translateX(-3px); }
[data-dir="1"]:is(.gal-arrow,.lb-arrow,.reel-arrow):hover { transform:translateX(3px); }
[data-dir="-1"]:is(.gal-arrow,.lb-arrow,.reel-arrow):hover > svg { transform:translateX(-2px); }
[data-dir="1"]:is(.gal-arrow,.lb-arrow,.reel-arrow):hover > svg:not(.gal-ring) { transform:translateX(2px); }
.lb-x:hover { transform:rotate(90deg); }
.gal-arrow:active, .lb-arrow:active, .reel-arrow:active { transform:scale(.92); }
.gal-arrow:focus-visible, .lb-arrow:focus-visible, .lb-x:focus-visible, .reel-arrow:focus-visible { outline:3px solid var(--accent,var(--cyan)); outline-offset:3px; }

.gal-arrow { position:absolute; z-index:3; top:calc(39px + (100% - 39px) / 2); margin-top:-28px; opacity:.82; }
.desk:hover .gal-arrow { opacity:1; }
.gal-arrow.prev { left:18px; }
.gal-arrow.next { right:18px; }
.gal-ring { position:absolute; inset:-3px; width:calc(100% + 6px); height:calc(100% + 6px); transform:rotate(-90deg); pointer-events:none; }
.gal-ring circle {
  fill:none; stroke:var(--accent); stroke-width:2.5; stroke-linecap:round;
  stroke-dasharray:176; stroke-dashoffset:176; opacity:0; transition:opacity .3s;
}
.desk.ticking .gal-ring circle { opacity:1; animation:galRing var(--dwell,5s) linear forwards; }
.gal-arrow:hover .gal-ring circle { opacity:0; }
@keyframes galRing { to { stroke-dashoffset:0; } }
.desk-count {
  font-style:normal; font-variant-numeric:tabular-nums; letter-spacing:.08em; font-size:11.5px;
  padding:3px 10px; border-radius:99px; background:var(--rule-soft); color:var(--ink-soft); margin-left:10px;
}
.desk-hint + .desk-count { margin-left:10px; }
@media (hover:none) { .gal-arrow { opacity:1; } }
@media (max-width:640px) {
  .gal-arrow, .lb-arrow, .reel-arrow { width:44px; height:44px; }
  .gal-arrow { margin-top:-22px; }
  .gal-arrow > svg:not(.gal-ring), .lb-arrow > svg, .reel-arrow > svg { width:19px; height:19px; }
  .gal-arrow.prev { left:8px; } .gal-arrow.next { right:8px; }
  .desk-hint { display:none; } .desk-count { margin-left:auto; }
}
@media (prefers-reduced-motion:reduce) { .desk.ticking .gal-ring circle { animation:none; opacity:0; } }

dialog.lb {
  width:min(1500px,96vw); max-width:none; max-height:none; padding:0; border:0; background:none; overflow:visible;
}
dialog.lb::backdrop { background:rgba(4,12,20,.86); backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px); }
dialog.lb[open] { animation:lbIn .35s cubic-bezier(.2,.7,.3,1); }
@keyframes lbIn { from { opacity:0; transform:scale(.94); } to { opacity:1; transform:none; } }
dialog.lb img {
  display:block; width:100%; height:auto; max-height:86vh; object-fit:contain; border-radius:14px;
  box-shadow:0 40px 100px -30px rgba(0,0,0,.9);
}
.lb-x, .lb-arrow { position:absolute; }
.lb-x { top:-16px; right:-16px; width:46px; height:46px; }
.lb-arrow { top:50%; margin-top:-28px; }
.lb-arrow.prev { left:14px; }
.lb-arrow.next { right:14px; }
.lb-cap { margin:14px 0 0; text-align:center; color:#c7d7e4; font-size:13.5px; }
@media (max-width:640px) { .lb-x { top:-54px; right:0; } .lb-arrow { top:auto; bottom:-62px; margin-top:0; } .lb-arrow.prev { left:calc(50% - 56px); } .lb-arrow.next { right:calc(50% - 56px); } .lb-cap { margin-top:74px; } }