*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
}

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

a {
  text-decoration: none;
  color: var(--text);
}

ul {
  list-style: none;
}

/* =============================================
   NAVIGACIJA
   OBAVEZNO - Responzivni dizajn koji uključuje hamburger izbornik za mobilne uređaje
   ============================================= */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(13, 15, 26, 0.88);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

#header.scrolled {
  background-color: rgba(13, 15, 26, 0.98);
}

#nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 40px;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo-img {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--aqua-border);
  transition: border-color 0.25s ease;
}

.nav-logo:hover .nav-logo-img {
  border-color: var(--aqua);
}

.nav-logo span {
  color: var(--aqua);
}

/* OBAVEZNO - Raspored elemenata kreiran pomoću Flexboxa (nav-links) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  font-family: var(--font);
  font-size: 0.875rem;
  color: var(--text);
  padding: 5px 10px;
  border-radius: var(--radius);
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-links a:hover {
  color: var(--aqua);
  background: var(--aqua-dim);
}

/* =============================================
   OBAVEZNO - Hamburger izbornik za mobilne uređaje
   Skriveno na desktopu, vidljivo na mobitelu putem media query-a
   ============================================= */
#hamburger {
  display: none;
  position: fixed;
  top: 18px;
  right: 24px;
  width: 36px;
  height: 36px;
  flex-direction: column;
  align-items: center;
  justify-content: space-evenly;
  cursor: pointer;
  z-index: 200;
}

.linija {
  width: 100%;
  height: 4px;
  background-color: var(--aqua);
  border-radius: 4px;
  /* OBAVEZNO - 2D transformacija: rotate i translateY na .open klasi */
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* OBAVEZNO - 2D transformacija: rotateZ i translateY — hamburger u X */
#hamburger.open .linija:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
#hamburger.open .linija:nth-child(2) {
  opacity: 0;
}
#hamburger.open .linija:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* =============================================
   GUMBI
   OBAVEZNO - 2D transformacija: translateY na hover gumbima
   ============================================= */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: bold;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.btn-primary {
  background-color: var(--aqua);
  color: #ffffff;
  border-color: var(--aqua);
}

/* OBAVEZNO - 2D transformacija: translateY(-2px) na hover */
.btn-primary:hover {
  background-color: transparent;
  color: var(--aqua);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--aqua);
  border-color: var(--aqua);
}

/* OBAVEZNO - 2D transformacija: translateY(-2px) na hover */
.btn-outline:hover {
  background-color: var(--aqua);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* =============================================
   LAYOUT
   ============================================= */
.container {
  width: min(90%, 1100px);
  margin-inline: auto;
}

.section {
  padding: 80px 0;
}

.section-dark {
  background-color: var(--bg-2);
}

/* =============================================
   TIPOGRAFIJA
   ============================================= */
.eyebrow {
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 10px;
}

h2 {
  font-size: 1.9rem;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 40px;
  line-height: 1.25;
}

h3 {
  font-size: 1rem;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 8px;
}

p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.center {
  text-align: center;
}

/* =============================================
   OBAVEZNO - Istaknuta hero sekcija na vrhu stranice
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/*
  OBAVEZNO - Istaknuta hero sekcija: pozadinska slika
*/
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    rgba(13,15,26,0.85),
    rgba(125, 17, 40, 0.15),
    rgba(13,15,26,0.85)
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 0;
}

/* Poluprozirni pravokutnik iza naslova i opisa */
.hero-text-box {
  background: rgba(13, 15, 26, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(125, 17, 40, 0.25);
  border-radius: 14px;
  padding: 32px 40px;
}

.hero-text-box h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: bold;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 14px;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.hero-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =============================================
   OBAVEZNO - Raspored elemenata kreiran pomoću Flexboxa (about-grid)
   ============================================= */
.about-grid {
  display: flex;
  align-items: center;
  gap: 60px;
}

.about-img-wrap {
  flex: 0 0 300px;
}

/* OBAVEZNO - 2D transformacija: scale(1.02) na hover */
.about-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.about-img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 30px rgba(125, 17, 40, 0.18);
}

.about-text {
  flex: 1;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-text p {
  margin-bottom: 14px;
}

/* =============================================
   OBAVEZNO - Raspored elemenata kreiran pomoću Grida (services-grid)
   OBAVEZNO - 3D transformacija: perspective + rotateY na hover karticama
   ============================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(180px, auto);
  gap: 16px;
}

/* OBAVEZNO - 3D transformacija: perspective na roditeljskom elementu (.card) */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  /* perspective je potreban da bi rotateY izgledao 3D */
  perspective: 800px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  border-color: var(--aqua-border);
  box-shadow: 0 6px 20px rgba(125, 17, 40, 0.12);
}

/* OBAVEZNO - 3D transformacija: rotateY(6deg) — sadržaj kartice se zarotira u 3D prostoru */
.card-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  transition: transform 0.4s ease;
  transform-style: preserve-3d;
}

.card:hover .card-inner {
  transform: rotateY(6deg);
}

.card-icon {
  width: 38px;
  height: 38px;
  color: var(--aqua);
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card p {
  font-size: 0.875rem;
  margin-bottom: 0;
}

.card-highlight {
  background: var(--aqua-dim);
  border-color: var(--aqua-border);
  align-items: center;
  justify-content: center;
  text-align: center;
}

.card-highlight .card-inner {
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.card-highlight p {
  color: #ffffff;
  font-size: 1rem;
  font-weight: bold;
  margin: 0;
}

.card-highlight:hover {
  box-shadow: 0 6px 20px rgba(125, 17, 40, 0.20);
}

/* =============================================
   OBAVEZNO - Raspored elemenata kreiran pomoću Flexboxa (works-flex)
   OBAVEZNO - 2D transformacija: scale na hover slika, translateY na kartice
   ============================================= */
.works-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.work-card {
  flex: 1 1 260px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  /* OBAVEZNO - 2D transformacija: translateY na hover */
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.work-card-wide {
  flex: 2 1 380px;
}

.work-card:hover {
  border-color: var(--aqua-border);
  transform: translateY(-4px);
}

.work-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #1a1a1a;
}

/* OBAVEZNO - 2D transformacija: scale(1.05) na hover */
.work-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.work-card:hover .work-img {
  transform: scale(1.05);
}

.work-overlay {
  position: absolute;
  inset: 0;
  background: rgba(125, 17, 40, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.work-card:hover .work-overlay {
  opacity: 1;
}

.work-overlay span {
  background: rgba(0, 0, 0, 0.6);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: bold;
}

.work-body {
  padding: 16px 20px;
}

.work-body h3 {
  margin-bottom: 6px;
}

.work-body p {
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* =============================================
   OBAVEZNO - Raspored elemenata kreiran pomoću Grida (skills-grid)
   OBAVEZNO - Animacija: @keyframes barFill punjenje skill barova
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px 48px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skill-name {
  font-size: 0.875rem;
  color: var(--text);
  font-weight: bold;
}

.skill-pct {
  font-size: 0.8rem;
  color: var(--aqua);
  font-weight: bold;
}

.skill-bar-wrap {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 10px;
  overflow: hidden;
}

/* OBAVEZNO - Animacija: barFill puni traku od 0 do zadane širine */
.skill-bar {
  height: 100%;
  width: var(--pct);
  background-color: var(--aqua);
  border-radius: 10px;
  animation: barFill 1.2s ease forwards;
}

@keyframes barFill {
  from { width: 0; }
  to   { width: var(--pct); }
}

/* =============================================
   OBAVEZNO - Raspored elemenata kreiran pomoću Grida (contact-wrap)
   ============================================= */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info p {
  margin-bottom: 24px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.contact-list svg {
  width: 18px;
  height: 18px;
  color: var(--aqua);
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  outline: none;
  resize: vertical;
  transition: border-color 0.25s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #444444;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--aqua);
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  justify-content: center;
}

.footer-inner p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 0;
}

/* =============================================
   OBAVEZNO - Responzivni dizajn — MEDIA QUERIES
   Breakpoints: 1024px, 800px, 600px, 480px
   ============================================= */

/* Manji desktop */
@media screen and (max-width: 1024px) {
  .about-grid {
    gap: 40px;
  }
  .about-img-wrap {
    flex: 0 0 240px;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-wrap {
    gap: 40px;
  }
}

/* OBAVEZNO - Tablet 800px: hamburger se prikazuje, navigacija skrivena */
@media screen and (max-width: 800px) {

  /* OBAVEZNO - Hamburger vidljiv na mobitelu */
  #hamburger {
    display: flex;
  }

  /* Navigacijski linkovi skriveni po defaultu */
  #nav .nav-links {
    display: none;
    position: fixed;
    top: 60px;
    right: 0;
    width: 180px;
    background-color: rgba(13, 15, 26, 0.97);
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    border-radius: 0 0 0 var(--radius);
    flex-direction: column;
    gap: 0;
    padding: 10px 0;
    z-index: 150;
  }

  /* Vidljivi kada je meni otvoren */
  #nav .nav-links.mobile-open {
    display: flex;
  }

  #nav .nav-links a {
    display: block;
    padding: 10px 20px;
    border-radius: 0;
    width: 100%;
  }

  .about-grid {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }

  .about-img-wrap {
    flex: none;
    width: 220px;
    margin: 0 auto;
  }

  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .works-flex {
    flex-direction: column;
  }

  .work-card,
  .work-card-wide {
    flex: none;
    width: 100%;
  }

  #nav {
    padding: 14px 20px;
  }
}

/* Mobilni — 600px */
@media screen and (max-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-text-box h1 {
    font-size: 1.8rem;
  }

  .hero-text-box {
    padding: 24px 20px;
  }

  .hero-btns {
    flex-direction: column;
    align-items: center;
  }

  .hero-btns .btn {
    width: 100%;
    text-align: center;
  }

  h2 {
    font-size: 1.5rem;
  }

  .section {
    padding: 60px 0;
  }
}

/* Mali mobilni — 480px */
@media screen and (max-width: 480px) {
  .hero-text-box h1 {
    font-size: 1.5rem;
  }

  .section {
    padding: 50px 0;
  }
}

:root {
  --bg: #0d0f1a;
  --bg-2: #111425;
  --bg-card: #161929;
  --border: #252840;
  --text: #dde0f0;
  --text-muted: #7a7f9a;
  --aqua: #7d1128;           /* bordo — tamno crvena */
  --aqua-dim: rgba(125, 17, 40, 0.18);
  --aqua-border: rgba(125, 17, 40, 0.40);
  --font: Arial, Helvetica, sans-serif;
  --radius: 10px;
}