/* =====================================================================
   EDTECH LITHUANIA · SUPPORT LAB — STILIUS
   Vizuali sistema iš pateikto logotipo:
   · Rašalo mėlyna #1E1E44 (užrašas) — tekstas
   · Pilkšva mėlyna #35446B (logotipo plytelė) — antrinis tonas
   · Žalia   #2ECF7C (logotipo plytelė) — „atsakymo" spalva, pagrindinis CTA
   · Sodri žalia #29A666 — užvedimo būsena
   · Mėtinė  #E9F9F1 — šviesus žalios atspalvis jaukiems paviršiams
   · Logotipas — keturi kvadratai, kiekvienas su VIENU užapvalintu
     kampu, sukasi kaip vėjo malūnėlis. Ta forma — sistemos parašas:
     mygtukai, kortelės ir sekcijos apvalina lygiai vieną kampą.
   ===================================================================== */

:root {
  --ink:        #1E1E44;
  --slate:      #35446B;
  --green:      #2ECF7C;
  --green-deep: #29A666;
  --paper:      #FFFFFF;
  --mint:       #E9F9F1;   /* šviesus žalios tonas — jaukumo paviršius */
  --mint-deep:  #D6F3E4;
  --mist:       #F2F3F6;
  --line:       #DDDEE3;
  --ink-soft:   #565672;

  --radius: 22px;          /* „vienas užapvalintas kampas" */
  --radius-sm: 14px;

  --font: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --measure: 34rem;
}

/* ---------- Pagrindas ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }

a { color: var(--slate); text-underline-offset: 3px; }
a:hover { color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--green-deep);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  background: var(--ink); color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 20;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; color: #fff; }

/* ---------- Antraštė ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  max-width: 72rem;
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.brand img { width: 88px; height: auto; }
.brand-lab {
  display: none;               /* siaurame ekrane rodomas tik logotipas */
  font-weight: 800;
  font-stretch: 108%;
  font-size: 1.05rem;
  color: var(--ink);
  padding-left: 0.7rem;
  border-left: 2px solid var(--mint-deep);
  line-height: 1.15;
}
.site-nav { display: flex; gap: 1.25rem; }
.site-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--slate);
}
.site-nav a:hover { color: var(--ink); text-decoration: underline; }

/* ---------- Pirmas ekranas ---------- */
.hero {
  position: relative;
  max-width: 72rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
  overflow: hidden;
  text-align: center;
}
/* taškelių tinklelis — sąsiuvinio ir EEA ženklo faktūra */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: radial-gradient(var(--line) 1.3px, transparent 1.3px);
  background-size: 26px 26px;
  opacity: 0.55;
  -webkit-mask-image: radial-gradient(ellipse 75% 85% at 50% 40%, #000 30%, transparent 78%);
          mask-image: radial-gradient(ellipse 75% 85% at 50% 40%, #000 30%, transparent 78%);
}

/* „Support Lab" ženkliukas — mažas žalias kampuotas kvadratas + vardas */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.1rem;
  font-weight: 800;
  font-stretch: 108%;
  font-size: 1rem;
  color: var(--ink);
  background: var(--mint);
  padding: 0.45rem 0.95rem 0.45rem 0.55rem;
  border-radius: var(--radius-sm) 4px 4px 4px;
}
.hero-badge::before {
  content: "";
  width: 0.95rem; height: 0.95rem;
  background: var(--green);
  border-radius: 4px 8px 4px 4px;
}

.hero-kicker {
  margin: 0 0 0.8rem;
  font-weight: 600;
  color: var(--green-deep);
}

.hero .hl {
  background-image: linear-gradient(transparent 58%, rgba(46, 207, 124, 0.35) 58%);
  border-radius: 3px;
  padding: 0 0.08em;
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 8.5vw, 4.1rem);
  line-height: 1.02;
  font-weight: 800;
  font-stretch: 112%;
  letter-spacing: -0.015em;
}

.hero-lede {
  margin: 0 auto 2rem;
  max-width: var(--measure);
  font-size: 1.125rem;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.hero-note {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--slate);
}

.hero-network {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.35;   /* fonas lieka ramus, tekstas — pirmame plane */
}
.hero-network canvas { width: 100%; height: 100%; }
.hero-copy { position: relative; }

/* ---------- Mygtukai ---------- */
.btn {
  display: inline-block;
  padding: 0.9rem 1.6rem;
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  border-radius: 4px var(--radius) 4px 4px;   /* parašo kampas */
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--green);
  color: var(--ink);
}
.btn-primary:hover { background: var(--green-deep); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
  border-radius: 4px 4px 4px var(--radius);   /* veidrodinis kampas */
}
.btn-ghost:hover { background: var(--mint); color: var(--ink); }
.btn-plain {
  background: none;
  border: none;
  color: var(--slate);
  text-decoration: underline;
  padding: 0.9rem 0.5rem;
  font-weight: 600;
}
.btn-plain:hover { color: var(--ink); }

/* ---------- Tinklo signalai (paslėpta, kol nėra tikrų duomenų) ---------- */
.signals {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
}
.signals h2 { font-size: 1.25rem; margin: 0 0 0.75rem; }
.signals-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0; padding: 0;
}
.signals-list li {
  background: var(--mint);
  padding: 0.5rem 1rem;
  border-radius: 4px var(--radius-sm) 4px 4px;
  font-size: 0.95rem;
}
.signals-list strong { color: var(--green-deep); }

/* ---------- Klausti / siūlyti — šviesi, jauki sekcija ---------- */
.ask {
  background: var(--mint);
  color: var(--ink);
  padding: 3.5rem 1.25rem 4rem;
  border-radius: 0 72px 0 0;   /* sekcija pati neša parašo kampą */
  text-align: center;
}
.ask > * { max-width: 72rem; margin-left: auto; margin-right: auto; }

.ask-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  font-stretch: 108%;
}
.ask-head p {
  margin: 0 auto 2rem;
  max-width: var(--measure);
  color: var(--ink-soft);
}

.mode-toggle {
  display: inline-flex;
  background: var(--paper);
  border: 2px solid var(--mint-deep);
  border-radius: 4px var(--radius-sm) 4px var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.mode-btn {
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.65rem 1.1rem;
  background: transparent;
  color: var(--slate);
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.mode-btn.is-active {
  background: var(--green);
  color: var(--ink);
}
.mode-btn:not(.is-active):hover { color: var(--ink); }

.chips {
  list-style: none;
  margin: 0 auto 2rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  max-width: 56rem;
}
.chip {
  font: inherit;
  font-size: 0.98rem;
  font-weight: 600;
  padding: 0.65rem 1.1rem;
  background: var(--paper);
  color: var(--ink);
  border: 1.5px solid var(--mint-deep);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
/* vienas ir tas pats parašo kampas visiems — tvarka, ne chaosas */
.chip { border-radius: 4px var(--radius-sm) 4px 4px; }

.chip:hover { border-color: var(--green); }
.chip[aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--ink);
}
.chip[aria-pressed="true"]::before {
  content: "✓ ";
  font-weight: 800;
}
.chip.chip-unsure { border-style: dashed; border-color: var(--slate); }
.chip.chip-unsure:hover,
.chip.chip-unsure[aria-pressed="true"] { border-color: var(--green); border-style: solid; }

/* Rašymo blokas: pasirinkus, po eilute nusidriekia žalias „ryšys" */
.compose {
  border-top: 1px solid var(--mint-deep);
  padding-top: 1.75rem;
}
.compose-line {
  margin: 0 auto 0.45rem;
  font-size: 1.15rem;
  font-weight: 600;
  max-width: var(--measure);
  min-height: 2.9em;
}
.compose-thread {
  display: block;
  width: 0;
  height: 4px;
  background: var(--green);
  border-radius: 2px;
  margin: 0 auto 1.1rem;
  transition: width 0.45s ease;
}
.compose.is-picked .compose-thread { width: 72px; }

.compose-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.privacy-note {
  margin: 0 auto;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: var(--measure);
}

.anchor-alias { display: block; height: 0; }

/* ---------- Kaip tai veikia — kelias su progreso linija ---------- */
.how {
  max-width: 72rem;
  margin: 0 auto;
  padding: 3.5rem 1.25rem 3rem;
  text-align: center;
}
.how h2 {
  margin: 0 0 2rem;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  font-stretch: 108%;
}
.how-steps {
  text-align: left;
  list-style: none;
  counter-reset: step;
  margin: 0; padding: 0;
  display: grid;
  gap: 1.75rem;
  position: relative;
}
/* vertikali kelio linija mobiliame — žingsniai sujungti, ne pabirę */
.how-steps::before {
  content: "";
  position: absolute;
  left: 1.2rem;
  top: 1.2rem; bottom: 1.2rem;
  width: 2px;
  background: var(--mint-deep);
  transform: translateX(-1px);
}
.how-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3.4rem;
  max-width: var(--measure);
}
.how-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0; top: 0.1rem;
  width: 2.4rem; height: 2.4rem;
  display: grid; place-items: center;
  font-weight: 800;
  color: var(--ink);
  background: var(--green);
  border-radius: 4px var(--radius-sm) 4px 4px;
}
.how-steps h3 { margin: 0 0 0.35rem; font-size: 1.15rem; }
.how-steps p { margin: 0; color: var(--ink-soft); }

.how-footnote {
  margin: 2.25rem auto 0;
  font-weight: 600;
  color: var(--slate);
  max-width: var(--measure);
}

/* ---------- Poraštė ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 1.25rem 3rem;
  text-align: center;
}
.footer-logo { margin: 0 auto 0.75rem; width: 72px; }
.footer-line { margin: 0 0 0.75rem; font-weight: 600; }
.footer-eea {
  margin: 0 0 0.9rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.footer-eea img { height: 34px; width: auto; display: inline-block; vertical-align: middle; }
.footer-eea a { display: inline-flex; align-items: center; }

.footer-meta {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: center;
  gap: 0.6rem;
}

/* ---------- Kompiuterio ekranas ---------- */
@media (min-width: 860px) {
  .site-header { padding: 1.25rem 2rem; }
  .brand img { width: 112px; }
  .brand-lab { display: block; font-size: 1.15rem; }

  .hero { padding: 4.5rem 2rem 6rem; }

  .ask { padding: 4.5rem 2rem 5rem; }
  .how { padding: 4.5rem 2rem 4rem; }
  .how-steps { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
  /* horizontali kelio linija — progresas iš kairės į dešinę */
  .how-steps::before {
    left: 1.2rem; right: calc(33.333% - 1.2rem);
    top: 1.2rem; bottom: auto;
    width: auto; height: 2px;
    transform: translateY(-1px);
  }
  .how-steps li { padding-left: 0; padding-top: 3.4rem; }
  .how-steps li::before { top: 0; }
}

/* ---------- Sumažintas judesys ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}