/* =============================================================
   TERMOSILIT
   Sve boje, fontovi i mere su na jednom mestu, u :root ispod.
   Redosled sekcija u fajlu prati redosled sekcija na stranici.

   1.  Promenljive
   2.  Osnova i tipografija
   3.  Pomoćne klase (wrap, eyebrow, rule, btn, ico, todo)
   4.  Zaglavlje i navigacija
   5.  Hero
   6.  Zaglavlje sekcije
   7.  O nama
   8.  Delatnost
   9.  Kako radimo
   10. Radovi i lightbox
   11. Zašto Termosilit
   12. Kontakt
   13. Futer
   14. Plutajuće dugme
   15. Animacije pri skrolu
   ============================================================= */


/* -------------------------------------------------------------
   1. PROMENLJIVE
   ------------------------------------------------------------- */
:root {
  /* Paleta izvučena iz logotipa */
  --blue-primary: #3A7FB5;  /* plava iz natpisa TERMOSILIT, glavna boja */
  --blue-dark:    #1B3A5C;  /* tamnoplava iz ikonice, naslovi */
  --blue-deep:    #13243A;  /* najtamnija plava, pozadina futera */
  --blue-soft:    #7BA3C8;  /* svetloplava linija iz logotipa, razdvajači */
  --blue-tint:    #EEF4FA;  /* vrlo svetla plava, naizmenična pozadina sekcija */
  --white:        #FFFFFF;
  --text:         #1E2B3A;
  --text-muted:   #5A7A99;
  --accent:       #FF6A00;  /* narandžasta tačka iz logotipa, samo sitni akcenti */
  --flame-yellow: #FFB800;

  /* Izvedene boje */
  --line:      rgba(123, 163, 200, .34);
  --line-soft: rgba(123, 163, 200, .18);

  /* Tipografija */
  --f-head: 'Saira', 'Segoe UI', system-ui, sans-serif;
  --f-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

  /* Mere */
  --wrap: 1200px;
  --pad: 24px;
  /* Visina zaglavlja je na jednom mestu jer od nje zavise i skok na sidro
     i položaj mobilnog menija. Menja se samo ovde. */
  --header-h: 88px;
  --sec-pad: 120px;
  --r-card: 18px;
  --r-big: 22px;

  /* Senke */
  --sh-sm: 0 1px 2px rgba(19, 36, 58, .05);
  --sh-md: 0 10px 28px rgba(19, 36, 58, .08);
  --sh-lg: 0 22px 60px rgba(19, 36, 58, .13);

  --ease: cubic-bezier(.22, .61, .36, 1);
}


/* -------------------------------------------------------------
   2. OSNOVA I TIPOGRAFIJA
   ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font: 400 17px/1.65 var(--f-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--blue-dark);
  margin: 0;
  line-height: 1.15;
}
h1 { font-size: clamp(2rem, 3.7vw, 3.05rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.12rem; letter-spacing: .04em; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--blue-primary); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue-dark); }

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

ul, ol { margin: 0; padding: 0; list-style: none; }

/* Vidljiv fokus svuda, bez izuzetaka */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--blue-dark); color: #fff;
  padding: 12px 20px; border-radius: 0 0 10px 0;
}
.skip:focus { left: 0; color: #fff; }


/* -------------------------------------------------------------
   3. POMOĆNE KLASE
   ------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.sec { padding-block: var(--sec-pad); }
.sec--tint { background: var(--blue-tint); }

/* Oznaka iznad naslova, razmaknuta slova kao podnaslov u logotipu */
.eyebrow {
  font-family: var(--f-head);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 14px;
}

/* Motiv iz logotipa: tanka svetloplava linija sa narandžastom tačkom na kraju */
.rule {
  display: block;
  position: relative;
  width: 72px; height: 2px;
  background: var(--blue-soft);
  border-radius: 2px;
  margin: 18px 0 0;
}
.rule::after {
  content: '';
  position: absolute; right: -3px; top: 50%;
  width: 7px; height: 7px;
  transform: translateY(-50%);
  background: var(--accent);
  border-radius: 50%;
}
.rule--dark { background: rgba(123, 163, 200, .5); }

/* Dugmad */
.btn {
  --btn-bg: var(--blue-primary);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--f-head);
  font-weight: 600; font-size: .95rem;
  letter-spacing: .07em; text-transform: uppercase;
  color: #fff;
  background: var(--btn-bg);
  padding: 15px 28px;
  border: 2px solid var(--btn-bg);
  border-radius: 11px;
  cursor: pointer;
  transition: background .22s var(--ease), border-color .22s var(--ease),
              transform .22s var(--ease), box-shadow .22s var(--ease), color .22s var(--ease);
}
.btn:hover {
  --btn-bg: var(--blue-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
}
.btn--ghost {
  background: transparent;
  color: var(--blue-primary);
  border-color: var(--line);
}
.btn--ghost:hover {
  background: transparent;
  color: var(--blue-dark);
  border-color: var(--blue-primary);
}
.btn--sm { padding: 11px 18px; font-size: .85rem; border-radius: 9px; }
.btn--full { width: 100%; }

/* Linijske ikonice, jedan stil za ceo sajt */
.ico {
  width: 18px; height: 18px; flex: none;
  fill: none; stroke: currentColor;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.ico--lg { width: 22px; height: 22px; stroke: var(--blue-primary); }

/* Vidljiva oznaka podatka koji tek treba uneti.
   Kad se podatak unese, skloniti klasu "todo" zajedno sa tekstom. */
.todo {
  color: var(--accent) !important;
  border: 1px dashed var(--accent);
  border-radius: 7px;
  padding: 2px 9px;
}
.todo--dark { color: var(--flame-yellow) !important; border-color: var(--flame-yellow); }


/* -------------------------------------------------------------
   3b. UČITAVANJE
   Plamen iz logotipa preko bele podloge, ispod njega traka sa
   narandžastom tačkom (isti motiv kao linija ispod naslova).
   Sklanja se dodavanjem klase "ucitano" na <html>, iz main.js.
   ------------------------------------------------------------- */
.loader {
  position: fixed; inset: 0; z-index: 300;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 30px;
  background: var(--white);
  background-image: radial-gradient(58% 48% at 50% 42%,
                    rgba(58, 127, 181, .11), rgba(58, 127, 181, 0) 70%);
  transition: opacity .45s var(--ease), visibility .45s var(--ease);
}

.loader__flame {
  width: 108px; height: 108px;
  border-radius: 24px;
  box-shadow: 0 18px 44px rgba(19, 36, 58, .18);
  animation: plamen 1.9s var(--ease) infinite;
}
@keyframes plamen {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-7px) scale(1.04); }
}

.loader__track {
  position: relative; display: block;
  width: 148px; height: 2px;
  background: var(--line);
  border-radius: 2px;
}
.loader__dot {
  position: absolute; top: 50%; left: 0;
  width: 7px; height: 7px;
  margin-top: -3.5px;
  background: var(--accent);
  border-radius: 50%;
  animation: tacka 1.5s var(--ease) infinite;
}
@keyframes tacka {
  0%   { left: 0; }
  50%  { left: calc(100% - 7px); }
  100% { left: 0; }
}

/* Gotovo: sklanja se iz toka i prestaje da hvata klikove */
html.ucitano .loader {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}


/* -------------------------------------------------------------
   4. ZAGLAVLJE I NAVIGACIJA
   ------------------------------------------------------------- */
.header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.header.is-stuck {
  box-shadow: 0 1px 20px rgba(19, 36, 58, .09);
  border-bottom-color: var(--line-soft);
}
.header__in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  min-height: var(--header-h);
}

/* Ceo horizontalni logotip, isečen od praznog prostora
   (images/termosilit-logo-header.png, odnos 3.08:1) */
.brand { display: flex; align-items: center; flex: none; }
.brand img {
  display: block;
  height: 58px; width: auto;
}

.nav { display: flex; align-items: center; gap: 30px; }
.nav > a:not(.btn) {
  position: relative;
  font-size: .96rem; font-weight: 500;
  color: var(--text);
  padding-block: 6px;
}
.nav > a:not(.btn)::after {
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--blue-soft);
  border-radius: 2px;
  transition: width .25s var(--ease);
}
.nav > a:not(.btn):hover { color: var(--blue-dark); }
.nav > a:not(.btn):hover::after,
.nav > a.is-active::after { width: 100%; }
.nav > a.is-active { color: var(--blue-primary); }
/* Narandžasta tačka na kraju linije aktivne stavke, isti motiv kao u logotipu */
.nav > a.is-active { padding-right: 10px; }
.nav > a.is-active::before {
  content: '';
  position: absolute; right: 0; bottom: -2px;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.nav__cta { margin-left: 4px; }

.burger {
  display: none;
  width: 44px; height: 44px;
  background: none; border: 0; cursor: pointer;
  padding: 11px 10px;
}
.burger span {
  display: block; height: 2px; border-radius: 2px;
  background: var(--blue-dark);
  transition: transform .26s var(--ease), opacity .2s var(--ease);
}
.burger span + span { margin-top: 5px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  :root { --header-h: 70px; }
  .brand img { height: 46px; }
  .burger { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    flex-direction: column; align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line-soft);
    box-shadow: var(--sh-lg);
    padding: 8px var(--pad) 24px;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0; visibility: hidden;
    transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav > a:not(.btn) {
    padding: 15px 2px;
    border-bottom: 1px solid var(--line-soft);
    font-size: 1.05rem;
  }
  .nav > a:not(.btn)::after, .nav > a.is-active::before { display: none; }
  .nav__cta { margin: 18px 0 0; }
}


/* -------------------------------------------------------------
   5. HERO
   ------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: 88px 104px;
  overflow: hidden;
}
/* Suptilan plavi sjaj u gornjem desnom uglu */
.hero::before {
  content: '';
  position: absolute; top: -280px; right: -160px;
  width: 720px; height: 720px;
  background: radial-gradient(circle, rgba(58, 127, 181, .13) 0%, rgba(58, 127, 181, 0) 68%);
  pointer-events: none;
}
.hero__in {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 64px;
  align-items: center;
}

.hero h1 { margin-bottom: 22px; }
.hero .lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 48ch;
  margin-bottom: 34px;
}

.hero__btns { display: flex; flex-wrap: wrap; gap: 14px; }

/* Razmaci i razmicanje slova su namerno stegnuti: sa širim vrednostima
   sve tri stavke ne stanu u jedan red u koloni heroja (~570px). */
.hero__facts {
  display: flex; flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--f-head);
  font-size: .82rem; font-weight: 600;
  letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-muted);
}
.hero__facts li { display: flex; align-items: center; gap: 16px; }
/* Tačka stoji ISPRED stavke, ne iza nje. Kad se traka prelomi u novi red,
   tačka ode sa stavkom umesto da visi sama na kraju prethodnog reda. */
.hero__facts li:not(:first-child)::before {
  content: '';
  flex: none;
  width: 5px; height: 5px;
  background: var(--blue-soft);
  border-radius: 50%;
}

/* Fotografija u heroju sedi na blagom plavom panelu */
.hero__shot {
  position: relative;
  margin: 0;
  border-radius: var(--r-big);
  background: linear-gradient(160deg, var(--blue-tint), #fff 72%);
  border: 1px solid var(--line-soft);
  padding: 30px;
  box-shadow: var(--sh-md);
}
.hero__shot img {
  width: 100%;
  max-height: 460px;
  object-fit: contain;
  border-radius: 12px;
}
/* Motiv linije sa tačkom, kao potpis ispod panela */
.hero__shot::after {
  content: '';
  position: absolute; left: 30px; bottom: 18px;
  width: 56px; height: 2px;
  background: var(--blue-soft);
  border-radius: 2px;
}
.hero__shot::before {
  content: '';
  position: absolute; left: 90px; bottom: 16px;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

@media (max-width: 900px) {
  .hero { padding-block: 56px 72px; }
  .hero__in { grid-template-columns: 1fr; gap: 40px; }
  /* Na uskom ekranu naslov ide prvi, fotografija ispod njega.
     Ako fotografija ide prva, dugmad padnu ispod prvog ekrana. */
  .hero__shot { padding: 18px; }
  .hero__shot img { max-height: 300px; }
  .hero__shot::after { display: none; }
}
@media (max-width: 620px) {
  /* Dugmad jednake širine, jedno ispod drugog */
  .hero__btns { flex-direction: column; align-items: stretch; }
  /* Kad se podaci prelome u kolonu, tačke razdvajanja nemaju šta da razdvajaju */
  .hero__facts { flex-direction: column; align-items: flex-start; gap: 11px; }
  .hero__facts li::before { display: none; }
}


/* -------------------------------------------------------------
   6. ZAGLAVLJE SEKCIJE
   Oznaka stoji u uskoj koloni levo, naslov u širokoj desno.
   ------------------------------------------------------------- */
.sechead {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0 48px;
  margin-bottom: 62px;
}
.sechead .eyebrow { padding-top: .55em; margin: 0; }
.sechead__main { max-width: 62ch; }
.sechead__lead {
  margin-top: 22px;
  color: var(--text-muted);
  font-size: 1.05rem;
}
@media (max-width: 820px) {
  .sechead { grid-template-columns: 1fr; margin-bottom: 42px; }
  .sechead .eyebrow { padding-top: 0; margin-bottom: 12px; }
}


/* -------------------------------------------------------------
   7. O NAMA
   ------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about__text p { color: var(--text); }
.about__text p + p { margin-top: 1.1em; }

.specs {
  margin: 36px 0 0;
  border-top: 1px solid var(--line);
}
.specs > div {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.specs dt {
  font-family: var(--f-head);
  font-size: .82rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-muted);
}
.specs dd {
  margin: 0;
  font-family: var(--f-head);
  font-weight: 700; font-size: 1.05rem;
  color: var(--blue-dark);
  text-align: right;
}
.specs__note {
  display: block;
  font-family: var(--f-body);
  font-weight: 400; font-size: .8rem;
  letter-spacing: 0; text-transform: none;
  color: var(--text-muted);
}

.about__shot { margin: 0; }
.about__shot img {
  width: 100%;
  border-radius: var(--r-big);
  border: 1px solid var(--line-soft);
  box-shadow: var(--sh-md);
}
.about__shot figcaption {
  margin-top: 14px;
  font-size: .88rem;
  color: var(--text-muted);
  padding-left: 16px;
  border-left: 2px solid var(--blue-soft);
}

@media (max-width: 900px) {
  .about { grid-template-columns: 1fr; gap: 40px; }
}


/* -------------------------------------------------------------
   8. DELATNOST
   ------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 32px 28px 30px;
  transition: transform .26s var(--ease), box-shadow .26s var(--ease), border-color .26s var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--blue-primary);
  box-shadow: var(--sh-md);
  z-index: 2;              /* bez ovoga podignutu karticu prekriva sledeća */
}
.card__ico {
  width: 34px; height: 34px;
  fill: none; stroke: var(--blue-primary);
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  margin-bottom: 20px;
}
.card h3 { margin-bottom: 11px; }
.card p { color: var(--text-muted); font-size: .97rem; }

@media (max-width: 980px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .cards { grid-template-columns: 1fr; } }


/* -------------------------------------------------------------
   9. KAKO RADIMO
   Četiri koraka povezana tankom plavom linijom,
   poslednji korak nosi narandžastu tačku.
   ------------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
/* Linija koja povezuje korake */
.steps::before {
  content: '';
  position: absolute;
  top: 21px; left: 10%; right: 10%;
  height: 2px;
  background: var(--blue-soft);
  opacity: .55;
}
.step { position: relative; padding-top: 62px; }
.step__num {
  position: absolute; top: 0; left: 0;
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--blue-soft);
  font-family: var(--f-head);
  font-weight: 700; font-size: .92rem;
  letter-spacing: .03em;
  color: var(--blue-primary);
}
.step:last-child .step__num { border-color: var(--accent); color: var(--accent); }
.step h3 { margin-bottom: 9px; }
.step p { color: var(--text-muted); font-size: .96rem; }

@media (max-width: 900px) {
  .steps { grid-template-columns: repeat(2, 1fr); gap: 34px 26px; }
  .steps::before { display: none; }
}
@media (max-width: 540px) { .steps { grid-template-columns: 1fr; } }


/* -------------------------------------------------------------
   10. RADOVI I LIGHTBOX
   ------------------------------------------------------------- */
.filters {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 30px;
}
.filter {
  font-family: var(--f-head);
  font-weight: 600; font-size: .84rem;
  letter-spacing: .09em; text-transform: uppercase;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 20px;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.filter:hover { color: var(--blue-dark); border-color: var(--blue-soft); }
.filter.is-on {
  color: #fff;
  background: var(--blue-primary);
  border-color: var(--blue-primary);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px;
  grid-auto-flow: dense;
  gap: 16px;
}
.work {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-card);
  border: 1px solid var(--line-soft);
  background: #fff;
  cursor: zoom-in;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
}
.work--tall { grid-row: span 2; }
.work--wide { grid-column: span 2; }

.work img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
/* Uspravni predmeti na beloj pozadini bolje izgledaju uklopljeni nego isečeni */
.work--tall img { object-fit: contain; padding: 14px; }

.work:hover {
  transform: translateY(-4px);
  border-color: var(--blue-soft);
  box-shadow: var(--sh-md);
  z-index: 2;
}
.work:hover img { transform: scale(1.04); }

.work figcaption {
  position: absolute; inset: auto 0 0 0;
  display: flex; flex-direction: column; gap: 3px;
  padding: 44px 20px 18px;
  background: linear-gradient(to top, rgba(19, 36, 58, .93) 12%, rgba(19, 36, 58, .68) 55%, rgba(19, 36, 58, 0));
  color: #fff;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.work:hover figcaption,
.work:focus-within figcaption { opacity: 1; transform: none; }

.work figcaption strong {
  font-family: var(--f-head);
  font-weight: 700; font-size: 1rem;
  letter-spacing: .05em; text-transform: uppercase;
}
.work figcaption span { font-size: .85rem; color: var(--blue-soft); }

.work[hidden] { display: none; }

/* Na ekranu osetljivom na dodir nema prelaska mišem, pa naziv mora stalno da se vidi */
@media (hover: none) {
  .work figcaption { opacity: 1; transform: none; }
}

.gallery__empty {
  margin-top: 28px;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 980px) {
  .gallery { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 180px; }
}
@media (max-width: 720px) {
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .work--wide { grid-column: span 2; }
  .work figcaption { opacity: 1; transform: none; padding: 34px 14px 13px; }
  .work figcaption strong { font-size: .88rem; }
  .work figcaption span { font-size: .76rem; }
}

/* Lightbox */
.lb {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  background: rgba(19, 36, 58, .94);
  padding: 4vh 6vw;
  animation: lbIn .2s var(--ease);
}
@keyframes lbIn { from { opacity: 0; } to { opacity: 1; } }
.lb[hidden] { display: none; }

.lb__box { margin: 0; max-width: 100%; max-height: 92vh; text-align: center; }
.lb__box img {
  max-width: 100%; max-height: 80vh;
  margin-inline: auto;
  border-radius: 12px;
  background: #fff;
}
.lb__box figcaption {
  margin-top: 16px;
  font-family: var(--f-head);
  font-weight: 600; font-size: .95rem;
  letter-spacing: .07em; text-transform: uppercase;
  color: #fff;
}
.lb__x, .lb__nav {
  position: absolute;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: grid; place-items: center;
  transition: background .2s var(--ease);
}
.lb__x:hover, .lb__nav:hover { background: rgba(255, 255, 255, .22); }
.lb__x { top: 20px; right: 20px; width: 46px; height: 46px; font-size: 1.8rem; line-height: 1; }
.lb__nav { top: 50%; transform: translateY(-50%); width: 50px; height: 50px; font-size: 2.1rem; line-height: 1; }
.lb__nav--prev { left: 16px; }
.lb__nav--next { right: 16px; }
@media (max-width: 640px) {
  .lb__nav { width: 42px; height: 42px; font-size: 1.7rem; }
  .lb__nav--prev { left: 6px; }
  .lb__nav--next { right: 6px; }
}


/* -------------------------------------------------------------
   11. ZAŠTO TERMOSILIT
   ------------------------------------------------------------- */
.why {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.why li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 28px 24px;
  color: var(--text-muted);
  font-size: .96rem;
}
.why strong {
  display: block;
  position: relative;
  font-family: var(--f-head);
  font-weight: 700; font-size: 1.02rem;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--blue-dark);
  line-height: 1.25;
  /* Dva reda naslova, da linija sa tačkom i tekst ispod ostanu poravnati
     i kad je naslov u jednom redu */
  min-height: calc(2.5em + 16px);
  padding-bottom: 16px;
  margin-bottom: 14px;
}
/* Linija sa tačkom, motiv iz logotipa */
.why strong::after {
  content: '';
  position: absolute; left: 0; bottom: 0;
  width: 46px; height: 2px;
  background: var(--blue-soft);
  border-radius: 2px;
}
.why strong::before {
  content: '';
  position: absolute; left: 50px; bottom: -2px;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
@media (max-width: 980px) { .why { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .why { grid-template-columns: 1fr; } }


/* -------------------------------------------------------------
   12. KONTAKT
   ------------------------------------------------------------- */
.contact {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 56px;
  align-items: start;
}

.info li { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.info li:first-child { padding-top: 0; }
.info .ico { margin-top: 3px; }
.info__label {
  display: block;
  font-family: var(--f-head);
  font-size: .76rem; font-weight: 600;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.info p { margin: 0; color: var(--text); }
.info a { font-weight: 500; }

.hours { margin-top: 36px; }
.hours h3 { margin-bottom: 16px; }
.hours table { width: 100%; border-collapse: collapse; font-size: .96rem; }
.hours th, .hours td { padding: 10px 12px; text-align: left; font-weight: 400; }
.hours td { text-align: right; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.hours tr { border-bottom: 1px solid var(--line-soft); }
.hours tr:last-child { border-bottom: 0; }
.hours th { color: var(--text); }

.hours .hours__off th, .hours .hours__off td { color: #9AAAB9; }

/* Današnji dan, istaknut plavom */
.hours .is-today {
  background: var(--blue-tint);
  border-radius: 9px;
  border-bottom-color: transparent;
}
.hours .is-today th,
.hours .is-today td { color: var(--blue-primary); font-weight: 600; }
.hours .is-today th { border-radius: 9px 0 0 9px; }
.hours .is-today td { border-radius: 0 9px 9px 0; }
.hours .is-today.hours__off th,
.hours .is-today.hours__off td { color: var(--text-muted); }

/* Forma */
.contact__form {
  background: var(--blue-tint);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-big);
  padding: 36px;
}
.f2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
@media (max-width: 520px) { .f2 { grid-template-columns: 1fr; } }

.field { margin: 0 0 18px; }
.field label {
  display: block;
  font-family: var(--f-head);
  font-size: .76rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 7px;
}
.req { color: var(--accent); }

.field input,
.field select,
.field textarea {
  width: 100%;
  font: 400 1rem/1.5 var(--f-body);
  color: var(--text);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 14px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 128px; }
.field select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235A7A99' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 17px;
  padding-right: 40px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 0 3px rgba(58, 127, 181, .16);
}
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: none; }

.field.is-bad input, .field.is-bad textarea { border-color: var(--accent); }
.field .err {
  display: block;
  margin-top: 6px;
  font-size: .82rem;
  color: var(--accent);
  letter-spacing: 0; text-transform: none; font-family: var(--f-body); font-weight: 400;
}

/* Zamka za botove, sakrivena od ljudi ali ne i od čitača ekrana na silu */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.formnote { margin: 14px 0 0; font-size: .84rem; color: var(--text-muted); }

.formmsg {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-radius: 11px;
  font-size: .94rem;
  border: 1px solid var(--line);
  background: #fff;
}
.formmsg.is-ok { border-color: var(--blue-primary); color: var(--blue-dark); }
.formmsg.is-bad { border-color: var(--accent); color: var(--text); }
.formmsg .btn { margin-top: 12px; }

.map {
  margin-top: 64px;
  border-radius: var(--r-big);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  box-shadow: var(--sh-sm);
  line-height: 0;
}
.map iframe { filter: grayscale(.28) contrast(1.02); }

@media (max-width: 900px) {
  .contact { grid-template-columns: 1fr; gap: 42px; }
  .contact__form { padding: 26px 22px; }
  .map { margin-top: 44px; }
}


/* -------------------------------------------------------------
   13. FUTER
   ------------------------------------------------------------- */
.footer {
  background: var(--blue-deep);
  color: var(--blue-soft);
  padding-top: 76px;
}
.footer__in {
  display: grid;
  grid-template-columns: 1.4fr .7fr 1fr;
  gap: 52px;
  padding-bottom: 56px;
}
.footer__brand img { border-radius: 12px; margin-bottom: 16px; }
.footer__name {
  font-family: var(--f-head);
  font-weight: 700; font-size: 1.32rem;
  letter-spacing: .1em;
  color: #fff;
  margin: 0 0 6px;
}
.footer__sub {
  font-size: .85rem;
  letter-spacing: .04em;
  color: var(--blue-soft);
  margin: 0;
}
.footer__brand .rule { margin: 18px 0; }
.footer__desc { font-size: .92rem; max-width: 40ch; color: rgba(255, 255, 255, .62); }

.footer__h {
  font-family: var(--f-head);
  font-size: .76rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: #fff;
  margin: 0 0 18px;
}
.footer__links { display: flex; flex-direction: column; gap: 11px; align-items: flex-start; }
.footer a { color: var(--blue-soft); }
.footer a:hover { color: #fff; }
.footer__contact p { margin: 0 0 12px; font-size: .94rem; line-height: 1.6; }
.footer__hours { color: rgba(255, 255, 255, .52); font-size: .88rem !important; }

.footer__bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px 24px;
  padding-block: 22px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: .84rem;
  color: rgba(255, 255, 255, .5);
}
.footer__bar p { margin: 0; }

@media (max-width: 860px) {
  .footer__in { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer__in { grid-template-columns: 1fr; }
  .footer__bar { justify-content: flex-start; }
}


/* -------------------------------------------------------------
   14. PLUTAJUĆE DUGME ZA POZIV, SAMO NA MOBILNOM
   ------------------------------------------------------------- */
.fab {
  display: none;
  position: fixed; right: 18px; bottom: 18px; z-index: 80;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--blue-primary);
  box-shadow: 0 10px 26px rgba(19, 36, 58, .3);
  place-items: center;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.fab:hover { background: var(--blue-dark); transform: translateY(-2px); }
.fab svg {
  width: 24px; height: 24px;
  fill: none; stroke: #fff; stroke-width: 1.9;
  stroke-linecap: round; stroke-linejoin: round;
}
@media (max-width: 760px) { .fab { display: grid; } }


/* -------------------------------------------------------------
   15. ANIMACIJE PRI SKROLU
   Blagi fade in i pomeranje naviše. Bez agresivnih efekata.
   ------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* Poštuje podešavanje sistema za smanjeno kretanje */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  /* Izuzetak: bez animacije plamena i tačke ekran za učitavanje deluje zamrznuto.
     Usporene su i ublažene umesto da budu ugašene. */
  .loader__flame, .loader__dot {
    animation-duration: 2.6s !important;
    animation-iteration-count: infinite !important;
  }
  .loader__flame { animation-name: plamen-blago !important; }
}
@keyframes plamen-blago {
  0%, 100% { opacity: .78; }
  50%      { opacity: 1; }
}

/* Ako JavaScript ne radi, <noscript> blok u index.html vraća .reveal na vidljivo. */


/* -------------------------------------------------------------
   Manji ekrani, opšta podešavanja razmaka
   ------------------------------------------------------------- */
@media (max-width: 900px) {
  :root { --sec-pad: 72px; --pad: 20px; }
  body { font-size: 16px; }
}