/* Viešas intro (kurykla.com): ramus „kūrybos vietos“ puslapis. Pirmas ekranas — tik logotipas ir šūkis; apačioje trys mygtukai
   (Ką darome · Kaip dirbame · Kontaktai) atveria lapus (<dialog>, intro.js). Telefone lapas kyla iš apačios, kompiuteryje — centre. Tokenai — app.css (brand/BRAND.md); logotipas — logo.css.
   Tamsus pagal numatymą; sistemai prašant šviesaus — popieriaus paletė (tie patys tokenai kaip PDF ir viešas SF).
   Judesys: logotipo įėjimas ir švelnus turinio atsiradimas (opacity + transform); nieko, kas keistų išdėstymą. Garso ir WebGL nėra.
   Durys (Prisijungti, kvietimo kodas, demo forma) gyvena tame pačiame puslapyje ir rodomos tik ne viešame hoste (door.js). */

:root {
  color-scheme: dark light;
  --glow: oklch(0.36 0.06 135 / 0.5);
  --glow2: oklch(0.58 0.09 118 / 0.32);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: var(--paper);
    --ink: var(--paper-ink);
    --accent: var(--paper-accent);
    --accent-strong: #3f4a1e;
    --accent-deep: #8c9858;
    --glow: oklch(0.93 0.05 125 / 0.55);
    --glow2: oklch(0.96 0.04 110 / 0.7);
  }
  .grain { opacity: 0.035; }
  .logo { --logo-glow: #a8b36a; --logo-glow-a: .35; }
}

body.intro {
  --muted: color-mix(in oklab, var(--ink) 66%, var(--bg));
  --rule: color-mix(in oklab, var(--ink) 16%, transparent);
  --gutter: 20px;
  --sheet: var(--surface);
  --scrim: rgb(6 8 5 / 0.6);
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  padding: 0;
  /* the front page is a page to read and copy from (a number, an address), unlike the inside */
  -webkit-user-select: text;
  user-select: text;
  -webkit-touch-callout: default;
}
.intro .glow::before { animation: none; }

.wrap {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: max(var(--gutter), env(safe-area-inset-left)) max(var(--gutter), env(safe-area-inset-right));
}

/* ---------- viršus: logotipas, šūkis, durys ---------- */
.hero {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  text-align: center;
  /* the logo keeps its place whatever the door below it shows (the demo form, a note) */
  flex: 1 0 auto;
  padding: calc(clamp(56px, 24svh, 260px) + env(safe-area-inset-top)) max(var(--gutter), env(safe-area-inset-right)) 48px max(var(--gutter), env(safe-area-inset-left));
}
.mark { margin: 0; width: min(78vw, 560px); }
.mark .logo--lg { width: 100%; }

.tagline {
  margin-top: clamp(1.2rem, 3.2svh, 2rem);
  max-width: 26ch;
  font-size: clamp(1.2rem, 0.6rem + 2.4vw, 1.7rem);
  font-weight: 300;
  line-height: 1.35;
  letter-spacing: 0.01em;
  text-wrap: balance;
  color: var(--ink);
}

/* vienas sakinys, kas tai, ir vienas veiksmas — Susisiekti atveria Kontaktų lapą */
.lede {
  margin-top: 0.55rem;
  max-width: 30ch;
  font-size: clamp(0.92rem, 0.82rem + 0.4vw, 1.05rem);
  line-height: 1.5;
  letter-spacing: 0.02em;
  text-wrap: balance;
  color: var(--muted);
}
.cta {
  margin-top: clamp(1.3rem, 3.4svh, 2.1rem);
  min-height: 48px;
  padding: 0 2.2em;
  font: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  box-shadow: 0 0 0 0 var(--accent-glow, transparent), 0 10px 30px -12px var(--accent-glow, transparent);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.3s ease, scale 0.18s ease, box-shadow 0.4s ease;
}
@media (hover: hover) { .cta:hover { background: var(--accent-strong); box-shadow: 0 0 0 6px var(--accent-soft, transparent), 0 14px 34px -12px var(--accent-glow, transparent); } }
.cta:active { scale: 0.96; }
.cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

/* ---------- apačia: trys mygtukai ir rekvizitų eilutė ---------- */
.eyebrow {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0 clamp(4px, 2vw, 22px);
  padding: 0 max(12px, env(safe-area-inset-right)) 6px max(12px, env(safe-area-inset-left));
}
.menu__btn {
  position: relative;
  min-height: 44px;
  padding: 0 0.85em;
  font: inherit;
  font-size: clamp(0.95rem, 0.85rem + 0.35vw, 1.05rem);
  letter-spacing: 0.04em;
  color: var(--ink);
  background: none;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.3s ease, background-color 0.3s ease, scale 0.18s ease;
}
/* plona haki linija po žodžiu: išsiplečia užvedus / paspaudus */
.menu__btn::after {
  content: "";
  position: absolute;
  left: 0.85em;
  right: 0.85em;
  bottom: 9px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0.25);
  opacity: 0.7;
  transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease;
}
@media (hover: hover) { .menu__btn:hover::after { transform: scaleX(1); opacity: 1; } }
@media (max-width: 359px) { .menu { gap: 0; } .menu__btn { padding-inline: 0.55em; font-size: 0.9rem; } .menu__btn::after { left: 0.55em; right: 0.55em; } }
.menu__btn:active { background: color-mix(in oklab, var(--ink) 8%, transparent); scale: 0.97; }
.menu__btn[aria-expanded="true"]::after { transform: scaleX(1); opacity: 1; }
.menu__btn:focus-visible, .sheet__close:focus-visible, .contact__list a:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.foot {
  padding: 10px max(var(--gutter), env(safe-area-inset-right)) calc(20px + env(safe-area-inset-bottom)) max(var(--gutter), env(safe-area-inset-left));
  text-align: center;
  font-size: 0.8rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  text-wrap: balance;
  color: var(--muted);
}

/* ---------- lapai ---------- */
.sheet {
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  box-sizing: border-box;
  width: 100%;
  max-width: 640px;
  max-height: min(86svh, 780px);
  margin: auto auto 0;
  padding: 0 max(24px, env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  color: var(--ink);
  background: var(--sheet);
  border: 0;
  border-radius: 26px 26px 0 0;
  box-shadow: 0 -1px 0 color-mix(in oklab, var(--ink) 10%, transparent), 0 -24px 60px rgb(0 0 0 / 0.25);
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-user-select: text;
  user-select: text;
  /* už ekrano apačios; intro.js atidaręs prideda .is-in (įslenka), uždarydamas — .is-closing (nuslenka), tada užveria */
  translate: 0 100%;
  transition: translate 0.5s var(--ease);
}
.sheet.is-in { translate: 0 0; }
.sheet.is-closing { translate: 0 100%; }
.sheet::backdrop {
  background: var(--scrim);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.sheet.is-in::backdrop { opacity: 1; }
.sheet.is-closing::backdrop { opacity: 0; }
html:has(.sheet[open]) { overflow: hidden; }
/* telefone lapas turi „rankenėlę“ ir nubraukiamas žemyn (intro.js); kol tempiamas — be perėjimo */
.sheet__head::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 50%;
  width: 38px;
  height: 5px;
  border-radius: 3px;
  background: color-mix(in oklab, var(--ink) 22%, transparent);
  translate: -50% 0;
}
.sheet.is-dragging { transition: none; }
.sheet:focus { outline: none; }

.sheet__head {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0 10px;
  background: var(--sheet);
}
.sheet__close {
  position: relative;
  flex: none;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  padding: 0;
  color: var(--ink);
  background: color-mix(in oklab, var(--ink) 7%, transparent);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.3s ease;
}
.sheet__close::before, .sheet__close::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  translate: -50% -50%;
  rotate: 45deg;
}
.sheet__close::after { rotate: -45deg; }
@media (hover: hover) { .sheet__close:hover { background: color-mix(in oklab, var(--ink) 14%, transparent); } }

.sheet__lead {
  max-width: 30ch;
  margin-top: 6px;
  font-size: clamp(1.3rem, 1.05rem + 1vw, 1.65rem);
  font-weight: 300;
  line-height: 1.32;
  text-wrap: balance;
}
.list { list-style: none; margin: 26px 0 0; padding: 0; }
.item {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  padding: 18px 0 20px;
  border-top: 1px solid var(--rule);
}
.item__n { grid-row: span 2; padding-top: 0.32em; font-size: 0.85rem; letter-spacing: 0.12em; font-variant-numeric: tabular-nums; color: var(--accent); }
.item h3 { font-size: 1.2rem; font-weight: 400; line-height: 1.3; text-wrap: balance; }
.item p { grid-column: 2; margin-top: 6px; max-width: 48ch; font-size: 1rem; line-height: 1.6; color: var(--muted); }

.contact__list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 2px; }
.contact__list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 1.3rem;
  letter-spacing: 0.01em;
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.3em;
}
@media (hover: hover) { .contact__list a:hover { color: var(--accent-strong); text-decoration: underline; } }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  margin-top: 20px;
  padding: 0 2.4em;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--accent);
  border-radius: 999px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}
@media (hover: hover) { .btn:hover { background: var(--accent-strong); } }
.btn:active { transform: scale(0.98); }
.contact__terms { margin-top: 22px; font-size: 0.95rem; }
.contact__terms a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); text-underline-offset: 0.3em; }
@media (hover: hover) { .contact__terms a:hover { color: var(--accent-strong); } }

/* ---------- durys: tas pats puslapis, tas pats stulpelis ---------- */
.door {
  display: none;
  gap: 0.5rem;
  align-items: stretch;
  width: min(78vw, 300px);
  margin-top: 1rem;
}
.door.is-open { display: flex; }
.door input {
  flex: 1;
  min-width: 0;
  min-height: 3rem;
  padding: 0.6em 0.9em;
  font: inherit;
  font-size: max(16px, 1rem);
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
  color: var(--ink);
  background: color-mix(in oklab, var(--ink) 8%, transparent);
  border: 1px solid color-mix(in oklab, var(--ink) 30%, transparent);
  border-radius: 999px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.door input:focus { border-color: var(--accent); }
.door input::placeholder { text-transform: none; letter-spacing: 0.04em; color: color-mix(in oklab, var(--ink) 60%, transparent); }
.door button {
  min-height: 3rem;
  padding: 0 1.1em;
  font: inherit;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--bg);
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}
.door button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.enter {
  margin-top: 1.7rem;
  min-height: 3rem;
  padding: 0.85em 2.6em;
  font: inherit;
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: transparent;
  border: 1px solid color-mix(in oklab, var(--ink) 32%, transparent);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease;
  animation: rise 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) 2.1s both;
}
@media (hover: hover) { .enter:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); } }
.enter:active { background: color-mix(in oklab, var(--ink) 12%, transparent); }
.enter:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.note {
  min-height: 1.6em;
  margin-top: 1.1rem;
  font-size: 0.98rem;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.6s ease;
}
.note:empty { min-height: 0; margin: 0; }
.note:not(:empty) { opacity: 1; }

/* ---------- judesys: švelnus atsiradimas po logotipo ---------- */
.rise { animation: rise 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) both; }
.tagline { animation-delay: 1.5s; }
.lede { animation-delay: 1.65s; }
.cta { animation-delay: 1.8s; }
.menu { animation-delay: 1.95s; }
.foot { animation-name: fade; animation-delay: 2.15s; }
/* šviesa fone pražysta kartu su logotipu (tik opacity — telefonui pigu) */
.intro .glow { animation: fade 2.4s ease-out both; }   /* be poslinkio žemyn: paskutinė eilutė neišstumia puslapio (slinkimas) */
@keyframes rise { from { opacity: 0.01; transform: translateY(10px); } }
@keyframes fade { from { opacity: 0.01; } }

@media (prefers-reduced-motion: reduce) {
  .rise, .enter, .intro .glow { animation: none; }
  .note, .btn, .cta, .enter, .menu__btn, .menu__btn::after, .sheet, .sheet::backdrop { transition: none; }
}

/* ---------- kompiuteris: lapas centre, išnyra ---------- */
@media (min-width: 760px) {
  .tagline { max-width: none; }
  .sheet {
    margin: auto;
    padding: 0 44px 44px;
    border-radius: 26px;
    box-shadow: 0 0 0 1px color-mix(in oklab, var(--ink) 9%, transparent), 0 40px 100px rgb(0 0 0 / 0.35);
    translate: 0 24px;
    opacity: 0;
    transition: translate 0.45s var(--ease), opacity 0.3s ease;
  }
  .sheet.is-in { translate: 0 0; opacity: 1; }
  .sheet.is-closing { translate: 0 24px; opacity: 0; }
  .sheet__head { padding-top: 28px; }
  .sheet::backdrop { -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
}

/* šviesus režimas: baltas lapas virš popieriaus (po body.intro, kad perrašytų tamsų numatytąjį) */
@media (prefers-color-scheme: light) {
  body.intro { --sheet: #ffffff; --scrim: rgb(31 36 25 / 0.28); }
}

/* logotipas — ir durys į Kūrybos erdvę (2× bakstelėjimas, intro.js → erdve.js) */
body.intro { touch-action: manipulation; }   /* be priartinimo dukart bakstelėjus (iOS) */
.mark { -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }

/* žemas stačias ekranas (iPhone SE, Duo išorinis 382 × 580): viskas telpa be slinkimo */
@media (max-height: 640px) and (max-aspect-ratio: 3/4) {
  .hero { padding-top: calc(clamp(40px, 15svh, 120px) + env(safe-area-inset-top)); padding-bottom: 24px; }
  .cta { margin-top: 1.2rem; }
}

/* platus stačias ekranas (Duo vidinis stačiai 669 × 867, planšetė): logotipas baigiasi virš vidurio, šūkis prasideda po jo —
   per lenkimo liniją (ekrano vidurį) neina nei tekstas, nei mygtukas */
@media (min-width: 600px) and (max-aspect-ratio: 4/5) {
  .hero { padding-top: calc(46svh - 0.362 * min(78vw, 560px)); }
  .tagline { margin-top: 8svh; }
}

/* ---------- atverstas sulankstomas telefonas (iPhone Duo vidinis ekranas gulsčiai 951 × 585), planšetė gulsčiai ----------
   Du stulpeliai: kairėje logotipas, šūkis ir mygtukas, dešinėje — rodyklė į lapus ir rekvizitai. Vidurys (lenkimo linija) lieka tuščias:
   tarpas simetriškas, o jei Safari praneša segmentus (horizontal-viewport-segments), stulpeliai — tiksliai segmentų pločio.
   Keičiasi tik išdėstymas, ne animacijos: atverčiant telefoną niekas nepergroja iš naujo. */
@media (min-width: 700px) and (min-aspect-ratio: 4/3) and (max-height: 820px) {
  body.intro {
    --fold: 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr auto;
    grid-template-areas: "hero menu" "hero foot";
    column-gap: var(--fold);
    padding: env(safe-area-inset-top) max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left));
  }
  .hero { grid-area: hero; align-content: center; padding: 24px 0 calc(24px + env(safe-area-inset-bottom)); }
  .mark { width: min(100%, 420px); }
  .tagline { max-width: 20ch; }
  .menu {
    grid-area: menu;
    counter-reset: m;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: center;
    align-self: center;
    gap: 0;
    width: min(100%, 400px);
    padding: 24px 0 0;
  }
  .menu__btn {
    display: flex;
    align-items: center;
    gap: 1.1em;
    min-height: 68px;
    padding: 0 2.2em 0 0;
    font-size: clamp(1.15rem, 0.7rem + 1.2vw, 1.45rem);
    font-weight: 300;
    text-align: left;
    border-top: 1px solid var(--rule);
    border-radius: 0;
  }
  .menu__btn:last-child { border-bottom: 1px solid var(--rule); }
  .menu__btn::before {
    counter-increment: m;
    content: counter(m, decimal-leading-zero);
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
  }
  .menu__btn::after {
    content: "→";
    left: auto;
    right: 0.2em;
    bottom: auto;
    top: 50%;
    height: auto;
    background: none;
    color: var(--accent);
    transform: translate(-6px, -50%);
    opacity: 0.55;
  }
  @media (hover: hover) { .menu__btn:hover::after { transform: translate(0, -50%); opacity: 1; } }
  .menu__btn[aria-expanded="true"]::after { transform: translate(0, -50%); opacity: 1; }
  .menu__btn:active { scale: 1; }
  .foot { grid-area: foot; width: min(100%, 400px); padding-inline: 0; text-align: left; }

  /* lapas — dešinėje pusėje, iki lenkimo linijos, išslenka iš dešinės */
  .sheet {
    width: calc(50% - var(--fold, 64px) / 2);
    max-width: none;
    height: 100%;
    max-height: 100%;
    margin: 0 0 0 auto;
    padding: 0 max(32px, env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) 32px;
    border-radius: 26px 0 0 26px;
    box-shadow: -1px 0 0 color-mix(in oklab, var(--ink) 10%, transparent), -24px 0 60px rgb(0 0 0 / 0.25);
    translate: 100% 0;
    opacity: 1;
    transition: translate 0.5s var(--ease);
  }
  .sheet.is-in { translate: 0 0; opacity: 1; }
  .sheet.is-closing { translate: 100% 0; opacity: 1; }
  .sheet__head { padding-top: calc(22px + env(safe-area-inset-top)); }
  .sheet__head::before { display: none; }
  .sheet::backdrop { -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (min-width: 700px) and (min-aspect-ratio: 4/3) and (max-height: 820px) and (horizontal-viewport-segments: 2) {
  body.intro {
    --fold: calc(env(viewport-segment-left 1 0) - env(viewport-segment-right 0 0) + 48px);
    grid-template-columns: calc(env(viewport-segment-width 0 0) - 24px - max(24px, env(safe-area-inset-left))) calc(env(viewport-segment-width 1 0) - 24px - max(24px, env(safe-area-inset-right)));
  }
  .sheet { width: calc(env(viewport-segment-width 1 0) - 0px); }
}
/* atverstas, pasuktas stačiai ir sulenktas („knyga“ ant stalo): viršuje logotipas, apačioje meniu */
@media (vertical-viewport-segments: 2) {
  .hero { flex: none; height: env(viewport-segment-height 0 0); padding-top: env(safe-area-inset-top); align-content: center; }
}
@media (prefers-reduced-motion: reduce) { .sheet { transition: none; } }

/* Auksinis spindulėlis apskrieja brūkšnelį virš ū, kai logotipas jau susidėjo (VJ 2026-10-29); kartojasi kas ~30 s. SMIL, be JS. */
.spark-u .sp-halo { fill: url(#gold-hero); }
.spark-u .sp-core { fill: #F8E6AE; }
.spark-u .sp-trail .sp-core { fill: #F3D27C; }
@media (prefers-reduced-motion: reduce) { .spark-u { display: none; } }