/* Unutrasnje strane skice F: uvod sa petljom svetla, staklene ploce, tunel svih projekata, studija slucaja i poziv na kraju.
   Boje, slova, sekcije, dugmad i spisak radova dolaze iz e.css i f.css. */

.strana .vrh nav a[aria-current] { color: var(--zrak2); }
.strana .meni a[aria-current] span { color: var(--zrak); }

/* ---------- uvod strane ---------- */
.uvodna { position: relative; isolation: isolate; display: grid; align-items: end; min-height: min(84svh, 860px); padding: 108px var(--rub) clamp(40px, 8vh, 88px); overflow: clip; }
.uvodna--niska { min-height: min(62svh, 620px); }
.uvodna__pozadina { position: absolute; inset: 0; z-index: -1; }
.uvodna__pozadina img, .uvodna__pozadina video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.uvodna__pozadina video, .poziv__pozadina video { opacity: 0; transition: opacity .9s; }
.uvodna__pozadina video.ide, .poziv__pozadina video.ide { opacity: 1; }
.uvodna__pozadina::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3, 5, 8, .7) 0, rgba(3, 5, 8, .15) 34%, rgba(3, 5, 8, .5) 70%, var(--noc) 100%), radial-gradient(120% 70% at 20% 100%, rgba(3, 5, 8, .85), transparent 70%); }
@media (min-width: 900px) { .uvodna__pozadina::after { background: linear-gradient(180deg, rgba(3, 5, 8, .7) 0, rgba(3, 5, 8, .15) 34%, rgba(3, 5, 8, .5) 70%, var(--noc) 100%), linear-gradient(90deg, rgba(3, 5, 8, .82) 0, rgba(3, 5, 8, .45) 45%, transparent 75%); } }
.uvodna__unutra { position: relative; width: 100%; max-width: var(--sir); margin: 0 auto; }
.mrvice { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin: 0 0 18px; color: var(--tiho); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.mrvice a { color: var(--zrak2); text-decoration: none; }
.mrvice a:hover { text-decoration: underline; }
.mrvice i { width: 14px; height: 1px; background: var(--ivica2); }
.uvodna h1 { margin: 0; max-width: 13ch; font: 800 clamp(2.7rem, 11vw, 7.2rem)/.9 var(--naslov); letter-spacing: -.045em; text-wrap: balance; }
.uvodna h1 em { font-style: normal; color: var(--zrak2); text-shadow: 0 0 44px rgba(57, 225, 255, .5); }
.uvodna__lid { max-width: 36em; margin: 20px 0 0; color: var(--sivo); font-size: clamp(1rem, 1.2vw + .7rem, 1.28rem); line-height: 1.5; }
.uvodna .dugmad { margin-top: 26px; }
.oznake { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.oznake li { padding: 7px 11px; border: 1px solid var(--ivica2); border-radius: 999px; background: rgba(6, 10, 16, .55); color: var(--sivo); font: 500 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.oznake li b { color: var(--zrak2); font-weight: 600; }

/* ---------- staklo ---------- */
.staklo { position: relative; border: 1px solid rgba(190, 240, 255, .22); border-radius: 14px; background: linear-gradient(160deg, rgba(150, 220, 255, .09), rgba(150, 220, 255, .02) 42%, rgba(4, 7, 12, .5)); box-shadow: inset 0 1px 0 rgba(220, 250, 255, .18), 0 30px 70px -30px rgba(0, 0, 0, .9); }
.staklo::before { content: ''; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(115deg, transparent 30%, rgba(200, 248, 255, .08) 45%, transparent 60%); }

/* ---------- tunel svih projekata (strana Radovi). Bez pokreta je mreza kartica; sa pokretom skrol vodi kameru kroz tunel. ---------- */
.tunel { position: relative; }
.tunel__scena { position: relative; padding: 108px var(--rub) 30px; }
.tunel__glava { position: relative; z-index: 3; max-width: var(--sir); margin: 0 auto; }
.tunel__glava h1 { margin: 0; max-width: 15ch; font: 800 clamp(2.5rem, 9vw, 6.4rem)/.92 var(--naslov); letter-spacing: -.045em; text-wrap: balance; }
.tunel__glava h1 em { font-style: normal; color: var(--zrak2); text-shadow: 0 0 44px rgba(57, 225, 255, .5); }
.tunel__lid { max-width: 34em; margin: 18px 0 0; color: var(--sivo); font-size: clamp(1rem, 1.1vw + .7rem, 1.2rem); line-height: 1.5; text-wrap: pretty; }
.tunel__vodic, .tunel__dubina, .tunel__opis, .tunel__otvori { display: none; }
.tunel__karte { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 14px; max-width: var(--sir); margin: 26px auto 0; }
.tunel__k { position: relative; display: block; padding: 5px; border: 1px solid rgba(190, 240, 255, .22); border-radius: 12px; background: linear-gradient(160deg, rgba(150, 220, 255, .1), rgba(4, 7, 12, .72) 55%); color: var(--kost); text-decoration: none; box-shadow: 0 30px 60px -30px #000; }
.tunel__k img { display: block; width: 100%; height: auto; aspect-ratio: 1.6; object-fit: cover; border-radius: 8px; background: var(--ploca); }
.tunel__k[hidden] { display: none !important; }
.tunel__k:hover, .tunel__k:focus-visible { border-color: rgba(205, 250, 255, .85); }
.tunel__oznaka { display: block; padding: 8px 4px 3px; overflow: hidden; color: var(--sivo); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; text-overflow: ellipsis; }
.spisak .br--klijentski::before, .spisak .br--sopstveni::before, .spisak .br--u_izradi::before { content: ''; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--zrak); box-shadow: 0 0 10px rgba(57, 225, 255, .6); }
.spisak .br--sopstveni::before { background: var(--amber); box-shadow: 0 0 10px rgba(255, 179, 71, .5); }
.spisak .br--u_izradi::before { background: transparent; box-shadow: inset 0 0 0 1.5px var(--sivo); }
.tunel__hud { max-width: var(--sir); margin: 0 auto; }
.tunel__filteri { position: relative; z-index: 3; display: flex; flex-wrap: wrap; gap: 8px; max-width: var(--sir); margin: 22px auto 0; }
.tunel__filteri button { min-height: 40px; padding: 0 13px; border: 1px solid var(--ivica); border-radius: 3px; background: rgba(3, 5, 8, .55); color: var(--sivo); cursor: pointer; }
.tunel__filteri button b { margin-left: 4px; color: var(--tiho); font-weight: 500; }
.tunel__filteri button[aria-pressed="true"] { border-color: var(--zrak); background: rgba(57, 225, 255, .12); color: var(--zrak2); }
.tunel__spisak { display: inline-flex; align-items: center; min-height: 40px; padding: 0 12px; color: var(--zrak2); text-decoration: none; text-transform: uppercase; letter-spacing: .06em; font-size: 11px; }
.tunel__spisak:hover { text-decoration: underline; }
@media (prefers-reduced-motion: no-preference) {
  .ima-js .tunel__scena { position: sticky; top: 0; height: 100vh; height: 100svh; padding: 0; overflow: hidden; }
  .ima-js .tunel__dubina { display: block; position: absolute; inset: 0; z-index: 0; pointer-events: none; background: radial-gradient(34% 30% at 50% 50%, rgba(57, 225, 255, .13), transparent 70%), radial-gradient(70% 60% at 50% 50%, rgba(10, 40, 60, .35), transparent 80%); }
  .ima-js .tunel__dubina i { position: absolute; left: 0; top: 0; border: 1px solid rgba(110, 235, 255, .55); border-radius: 26px; opacity: 0; transform-origin: 0 0; will-change: transform, opacity; }
  .ima-js .tunel__glava { position: absolute; left: var(--rub); right: var(--rub); top: 50%; margin: 0 auto; translate: 0 -54%; text-align: center; pointer-events: none; will-change: opacity, transform; }
  .ima-js .tunel__glava h1 { max-width: 13ch; margin: 0 auto; text-shadow: 0 4px 40px #000; }
  .ima-js .tunel__glava .mrvice { justify-content: center; pointer-events: auto; }
  .ima-js .tunel__lid { margin: 18px auto 0; text-shadow: 0 2px 20px #000; }
  .ima-js .tunel__vodic { display: inline-flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 30px; color: var(--tiho); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
  .ima-js .tunel__vodic i { width: 1px; height: 46px; background: linear-gradient(var(--zrak), transparent); animation: tunel-vodic 1.8s ease-in-out infinite; transform-origin: top; }
  .ima-js .tunel__karte { position: absolute; inset: 0; z-index: 1; display: block; max-width: none; margin: 0; }
  .ima-js .tunel__k { position: absolute; left: 0; top: 0; display: none; transform-origin: 0 0; will-change: transform, opacity; }
  .ima-js .tunel__k.tu { display: block; }
  .ima-js .tunel__k.sad { border-color: rgba(205, 250, 255, .9); box-shadow: 0 0 0 1px rgba(57, 225, 255, .35), 0 0 70px rgba(57, 225, 255, .3), 0 40px 90px -30px #000; }
  .ima-js .tunel__hud { position: absolute; z-index: 4; left: var(--rub); right: var(--rub); bottom: max(18px, env(safe-area-inset-bottom)); display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 6px 18px; opacity: 0; transition: opacity .4s; }
  .ima-js .tunel--leti .tunel__hud { opacity: 1; }
  .ima-js .tunel__hud::before { content: ''; position: absolute; z-index: -1; inset: -90px calc(-1 * var(--rub)) calc(-1 * max(18px, env(safe-area-inset-bottom))); background: linear-gradient(180deg, transparent, rgba(3, 5, 8, .88) 62%); pointer-events: none; }
  .ima-js .tunel__opis { display: contents; }
  .ima-js .tunel__naziv { grid-column: 1; min-width: 0; overflow: hidden; font: 700 clamp(1.5rem, 3.6vw, 3rem)/1.02 var(--naslov); letter-spacing: -.03em; white-space: nowrap; text-overflow: ellipsis; }
  .ima-js .tunel__sta { grid-column: 1; min-width: 0; overflow: hidden; color: var(--sivo); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; text-overflow: ellipsis; }
  .ima-js .tunel__otvori { display: inline-flex; grid-column: 2; grid-row: 1 / span 2; align-self: center; }
  .ima-js .tunel__filteri { position: absolute; z-index: 5; left: var(--rub); right: var(--rub); top: 74px; justify-content: center; max-width: none; margin: 0; transition: opacity .4s; }
  .ima-js .tunel:not(.tunel--leti) .tunel__filteri { opacity: 0; visibility: hidden; }
  .ima-js .tunel__filteri button { min-height: 36px; padding: 0 11px; font-size: 11px; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
}
@keyframes tunel-vodic { 0%, 100% { scale: 1 .35; opacity: .4; } 50% { scale: 1 1; opacity: 1; } }
@media (prefers-reduced-motion: no-preference) and (max-width: 899px) {
  .ima-js .tunel__hud { grid-template-columns: minmax(0, 1fr); }
  .ima-js .tunel__otvori { grid-column: 1 / -1; grid-row: auto; justify-content: center; }
  .ima-js .tunel__filteri { top: 66px; flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; }
  .ima-js .tunel__filteri button { flex: none; }
}

/* ---------- studija slucaja ---------- */
.ulazak { position: fixed; inset: 0; z-index: 96; display: grid; place-items: center; background: #000; opacity: 1; transition: opacity .55s; }
.ulazak[hidden] { display: none; }
.ulazak video { width: 100%; height: 100%; object-fit: cover; }
.ulazak::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle, rgba(220, 252, 255, .95), rgba(57, 225, 255, .55) 40%, transparent 72%); opacity: 0; transition: opacity .35s; }
.ulazak--blic::after { opacity: 1; }
.ulazak--kraj { opacity: 0; pointer-events: none; }
.ulazak__preskoci { position: absolute; right: var(--rub); bottom: max(22px, env(safe-area-inset-bottom)); z-index: 1; min-height: 40px; padding: 0 14px; border: 1px solid var(--ivica2); border-radius: 3px; background: rgba(3, 5, 8, .6); color: var(--sivo); font: 500 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }

.studija-uvod { min-height: min(78svh, 820px); }
.studija-uvod h1 { max-width: 12ch; }
.studija-uvod .uvodna__lid { max-width: 40em; }
.cinjenice { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; margin: 34px 0 0; border: 1px solid var(--ivica); border-radius: 10px; overflow: hidden; background: var(--ivica); }
.cinjenice div { padding: 13px 15px; background: rgba(5, 8, 13, .88); }
.cinjenice dt { color: var(--tiho); font: 500 10.5px/1.2 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.cinjenice dd { margin: 6px 0 0; color: var(--kost); font-size: .95rem; line-height: 1.35; }
.cinjenice a { color: var(--zrak2); }

.ploca-red { position: relative; padding: clamp(30px, 8vh, 90px) var(--rub) 0; perspective: 1600px; }
.ploca { max-width: 1180px; margin: 0 auto; padding: clamp(6px, 1vw, 12px); transform-origin: 50% 100%; will-change: transform; }
.ploca img { display: block; width: 100%; height: auto; border-radius: 9px; }
.ploca figcaption, .snimak figcaption { margin-top: 12px; color: var(--tiho); font: 500 11px/1.4 var(--mono); letter-spacing: .05em; }

.scene { counter-reset: scena; }
.scena-red { display: grid; gap: 18px 6vw; padding: clamp(56px, 12vh, 130px) var(--rub) 0; max-width: calc(var(--sir) + var(--rub) * 2); margin: 0 auto; }
.scena-red__glava { position: relative; }
.scena-red__glava .mono { color: var(--zrak); font-size: 12px; letter-spacing: .1em; }
.scena-red__glava h2 { margin: 12px 0 0; font: 800 clamp(1.9rem, 5.6vw, 3.6rem)/.98 var(--naslov); letter-spacing: -.04em; text-wrap: balance; }
.scena-red__telo { color: var(--sivo); font-size: 1.05rem; line-height: 1.7; }
.scena-red__telo p { margin: 0 0 1em; }
.scena-red__telo strong { color: var(--kost); }
.scena-red__telo a:not(.dugme) { color: var(--zrak2); }
.snimak { margin: 8px 0 0; padding: 6px; }
.snimak img { display: block; width: 100%; height: auto; border-radius: 9px; }
@media (min-width: 900px) {
  .scena-red { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .scena-red__glava { position: sticky; top: 96px; }
  .scena-red--snimak .snimak { grid-column: 2; }
}

.mere { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 16px; margin: 0; }
.mere div { padding-top: 14px; border-top: 1px solid var(--ivica2); }
.mere b { display: block; font: 900 clamp(3rem, 12vw, 6.4rem)/.8 var(--broj); font-stretch: 62%; color: var(--kost); font-variant-numeric: tabular-nums; }
.mere b.zrak { color: var(--zrak2); text-shadow: 0 0 34px rgba(57, 225, 255, .45); }
.mere span { display: block; margin-top: 10px; color: var(--tiho); font: 500 11px/1.3 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
@media (min-width: 900px) { .mere { grid-template-columns: repeat(4, minmax(0, 1fr)); } .mere--dve { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.snimak--uspravan { max-width: 340px; margin-left: auto; margin-right: auto; }

.telefon-red { display: grid; grid-template-columns: minmax(0, 1fr); gap: 30px; align-items: center; }
.telefon { width: min(300px, 74vw); margin: 0 auto; padding: 9px; border-radius: 38px; transform-origin: 50% 100%; }
.telefon img { display: block; width: 100%; height: auto; border-radius: 30px; }
@media (min-width: 900px) { .telefon-red { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

.pitanja { display: grid; gap: 10px; }
.pitanja details { padding: 0 18px; }
.pitanja summary { display: flex; justify-content: space-between; gap: 16px; padding: 17px 0; cursor: pointer; font-weight: 600; list-style: none; }
.pitanja summary::-webkit-details-marker { display: none; }
.pitanja summary::after { content: '+'; color: var(--zrak); font: 500 1.2rem/1 var(--mono); transition: transform .3s; }
.pitanja details[open] summary::after { transform: rotate(45deg); }
.pitanja details p { margin: 0 0 18px; color: var(--sivo); line-height: 1.65; }

.srodni { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.srodni a { display: block; padding: 6px 6px 14px; text-decoration: none; color: var(--kost); transition: transform .4s var(--lako), border-color .3s; }
.srodni a:hover { transform: translateY(-4px); border-color: rgba(205, 250, 255, .6); }
.srodni img { display: block; width: 100%; aspect-ratio: 1.6; object-fit: cover; object-position: top; border-radius: 9px; }
.srodni strong { display: block; margin: 12px 8px 2px; font: 700 1.15rem/1.15 var(--naslov); }
.srodni span { display: block; margin: 0 8px; color: var(--tiho); font-size: .9rem; }

.sledeci { position: relative; display: block; margin: clamp(60px, 12vh, 130px) var(--rub) 0; max-width: var(--sir); padding: clamp(20px, 4vw, 44px); overflow: hidden; text-decoration: none; color: var(--kost); }
@media (min-width: 1300px) { .sledeci { margin-left: auto; margin-right: auto; } }
.sledeci .mono { color: var(--zrak); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.sledeci strong { display: block; margin-top: 10px; font: 800 clamp(2.2rem, 8vw, 5.6rem)/.92 var(--naslov); letter-spacing: -.045em; }
.sledeci span:last-child { display: block; margin-top: 10px; color: var(--sivo); }
.sledeci img { position: absolute; right: -6%; top: 50%; width: min(52%, 560px); border-radius: 10px; opacity: .35; transform: translateY(-50%) rotate(-4deg); transition: opacity .4s, transform .6s var(--lako); }
.sledeci:hover img { opacity: .6; transform: translateY(-50%) rotate(-2deg) scale(1.03); }
.sledeci > :not(img) { position: relative; }

/* ---------- poziv na kraju svake strane ---------- */
.poziv { position: relative; isolation: isolate; margin-top: clamp(80px, 14vh, 160px); padding: clamp(90px, 16vh, 180px) var(--rub); overflow: clip; text-align: center; }
.poziv__pozadina { position: absolute; inset: 0; z-index: -1; }
.poziv__pozadina img, .poziv__pozadina video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.poziv__pozadina::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, var(--noc), rgba(3, 5, 8, .35) 30%, rgba(3, 5, 8, .45) 70%, var(--noc)); }
.poziv__unutra { position: relative; max-width: 760px; margin: 0 auto; }
.poziv .sek__red { justify-content: center; }
.poziv h2 { margin: 14px 0 0; font: 800 clamp(2.4rem, 9vw, 5.6rem)/.92 var(--naslov); letter-spacing: -.045em; }
.poziv h2 em { font-style: normal; color: var(--zrak2); text-shadow: 0 0 44px rgba(57, 225, 255, .55); }
.poziv__lid { margin: 18px auto 0; color: var(--sivo); font-size: 1.1rem; }
.poziv .dugmad { justify-content: center; margin-top: 26px; }
.poziv__direktno { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 18px; margin: 24px 0 0; font-size: 12px; }
.poziv__direktno a { color: var(--sivo); }

/* ---------- mirne strane za citanje ---------- */
.citanje { max-width: 720px; margin: 0 auto; padding: clamp(40px, 8vh, 80px) var(--rub) 0; color: var(--sivo); font-size: 1.08rem; line-height: 1.75; }
.citanje h2 { margin: 2.2em 0 .6em; color: var(--kost); font: 800 clamp(1.6rem, 4.6vw, 2.4rem)/1.05 var(--naslov); letter-spacing: -.03em; }
.citanje h3 { margin: 1.8em 0 .5em; color: var(--kost); font: 700 1.25rem/1.2 var(--naslov); }
.citanje a { color: var(--zrak2); }
.citanje strong { color: var(--kost); }
.citanje ul, .citanje ol { padding-left: 1.2em; }
.citanje li { margin: .35em 0; }


.studija__rep { max-width: 24em; margin: 14px 0 0; color: var(--kost); font: 600 clamp(1.15rem, 2.2vw, 1.7rem)/1.2 var(--naslov); letter-spacing: -.02em; text-wrap: balance; }
.studija-uvod .uvodna__pozadina::before { content: ''; position: absolute; inset: 0; z-index: 1; background: radial-gradient(70% 55% at 78% 28%, color-mix(in srgb, var(--boja, #39e1ff) 34%, transparent), transparent 72%); mix-blend-mode: screen; pointer-events: none; }

.scena-red__glava h2 em, .sek h2 em { font-style: normal; color: var(--zrak2); text-shadow: 0 0 34px rgba(57, 225, 255, .45); }
@media (max-width: 899px) { .uvodna__pozadina::after { background: linear-gradient(180deg, rgba(3, 5, 8, .6) 0, rgba(3, 5, 8, .5) 35%, rgba(3, 5, 8, .82) 68%, var(--noc) 100%); } }

/* mejl se ne pise velikim slovima; naslov poziva bez usamljene reci; manji razmak posle uvoda */
.poziv h2 { text-wrap: balance; }
.poziv__direktno a[href^="mailto"] { text-transform: none; letter-spacing: .02em; }
.uvodna { padding-bottom: clamp(28px, 5vh, 56px); }
.uvodna + .tok > section:first-of-type, .uvodna + .tok > .sek:first-child { padding-top: clamp(44px, 8vh, 96px); }
.strana .sek { padding-top: clamp(56px, 10vh, 120px); }

/* pravne strane (politika privatnosti, uslovi): razmak medju pasusima i oznake u spiskovima */
.citanje--pravno { padding-bottom: clamp(48px, 10vh, 96px); }
.citanje--pravno p { margin: 0 0 1em; }
.citanje--pravno ul { list-style: disc; }
.citanje--pravno ol { list-style: decimal; }
.citanje--pravno li::marker { color: var(--zrak2); }
.citanje--pravno h2 { scroll-margin-top: 96px; }
.citanje--pravno .dugme { margin: .4em 0 1.2em; }
.vodic-en__meta { margin-top: 14px; color: var(--tiho); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }