/* ========== DENEX GRADNJA — Stylesheet ========== */

:root {
  --color-bg: #1a1a1a;
  --color-surface: #242424;
  --color-surface-2: #2f2f2f;
  --color-text: #f4f4f4;
  --color-muted: #b8b8b8;
  --color-accent: #e85d1c;       /* narandžasta — građevina */
  --color-accent-hover: #ff6f2c;
  --color-header: #1f1f1f;
  --font-heading: 'Oswald', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', Tahoma, sans-serif;
  --transition: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-soft: 0 6px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 14px 40px rgba(0, 0, 0, 0.45);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-body);
}

html {
  scroll-behavior: smooth;
}

body {
  line-height: 1.6;
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

/* Globalne tranzicije */
a, button, .card, .nav a, img, .btn {
  transition: color var(--transition), background-color var(--transition),
              border-color var(--transition), transform var(--transition),
              box-shadow var(--transition), opacity var(--transition);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========== HEADER ========== */
.header {
  background: var(--color-header);
  color: #fff;
  padding: 0 40px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.header h1 {
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
}

.logo {
  display: block;
  max-height: 90px;
  transition: transform var(--transition);
}
.logo:hover { transform: scale(1.05); }

.logo a, h1 a {
  text-decoration: none;
  display: flex;
  align-items: center;
}

/* Nav sa animiranom linijom */
.nav {
  display: flex;
  align-items: center;
}
.nav a {
  color: #fff;
  margin-left: 28px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  padding: 8px 0;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav a:hover { color: var(--color-accent); }

/* ========== HERO ========== */
.hero {
  position: relative;
  height: 87vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.hero-video {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0,0,0,0.55) 0%,
    rgba(0,0,0,0.35) 50%,
    rgba(0,0,0,0.75) 100%);
  z-index: 1;
}
.hero-text {
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
  padding: 0 20px;
  max-width: 900px;
}
.hero-text h2 span {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  margin-bottom: 12px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.8);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0;
  animation: heroFadeUp 0.9s ease forwards;
}
.hero-text h2 span:nth-child(1) { animation-delay: 0.15s; }
.hero-text h2 span:nth-child(2) { animation-delay: 0.35s; }
.hero-text p {
  font-size: clamp(16px, 2vw, 22px);
  text-shadow: 0 2px 10px rgba(0,0,0,0.8);
  margin-top: 10px;
  opacity: 0;
  animation: heroFadeUp 0.9s ease 0.55s forwards;
}
.hero-cta {
  display: inline-block;
  margin-top: 28px;
  padding: 14px 34px;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: 2px;
  opacity: 0;
  animation: heroFadeUp 0.9s ease 0.75s forwards;
  box-shadow: var(--shadow-soft);
}
.hero-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ========== SECTIONS ========== */
.section {
  padding: 80px 40px;
  background: var(--color-bg);
  max-width: 1400px;
  margin: 0 auto;
}
.section.gray {
  background: var(--color-surface);
  max-width: 100%;
}
.section > h2 {
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 16px;
}
.section > h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 3px;
  background: var(--color-accent);
}
.section p {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 950px;
  margin: 0 auto;
  text-align: left;
}
.section.gray p { color: #ddd; }

/* ========== CARDS (usluge / projekti) ========== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.card {
  background: var(--color-surface-2);
  color: var(--color-text);
  padding: 40px 24px;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.05);
  border-top: 3px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: block;
}
.card:hover {
  transform: translateY(-8px);
  border-top-color: var(--color-accent);
  box-shadow: var(--shadow-hover);
  background: #333;
}

/* Projekti — kartice sa slikom */
.project-card {
  background: var(--color-surface-2);
  overflow: hidden;
  padding: 0;
  text-align: left;
  border-top: none;
  display: flex;
  flex-direction: column;
}
.project-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.project-card:hover img { transform: scale(1.08); }
.project-card .project-body {
  padding: 22px;
  text-transform: none;
  letter-spacing: normal;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.55;
}
.project-card .project-body strong {
  display: block;
  font-family: var(--font-heading);
  color: var(--color-text);
  font-size: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== KONTAKT ========== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 30px;
}
@media (max-width: 800px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info p {
  margin-bottom: 12px;
  color: var(--color-text);
  font-size: 16px;
}
.contact-info a { color: var(--color-accent); text-decoration: none; }
.contact-info a:hover { color: var(--color-accent-hover); }
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-form input,
.contact-form textarea {
  background: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 12px 16px;
  font-size: 15px;
  font-family: var(--font-body);
  border-radius: 3px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 93, 28, 0.2);
}
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form button {
  padding: 14px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-family: var(--font-heading);
  font-size: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 3px;
}
.contact-form button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.map-embed {
  margin-top: 40px;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.map-embed iframe {
  width: 100%;
  height: 340px;
  border: 0;
  display: block;
}

/* ========== FOOTER ========== */
.footer {
  background: #111;
  color: #ddd;
  padding: 50px 40px 20px;
  margin-top: 60px;
}
.footer-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-col h4 {
  font-family: var(--font-heading);
  color: #fff;
  font-size: 18px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 36px; height: 2px;
  background: var(--color-accent);
}
.footer-col p, .footer-col a {
  color: #aaa;
  font-size: 14px;
  text-decoration: none;
  display: block;
  margin-bottom: 8px;
}
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  text-align: center;
  padding-top: 20px;
  font-size: 13px;
  color: #888;
}

/* ========== LIGHTBOX ========== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: 20px;
}
.lightbox.open {
  display: flex;
  opacity: 1;
}
.lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  border-radius: 4px;
  box-shadow: 0 10px 60px rgba(0,0,0,0.7);
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 30px;
  color: #fff;
  font-size: 40px;
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}
.lightbox-close:hover { color: var(--color-accent); }

/* ========== PAGE TRANSITION OVERLAY ========== */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.page-transition.active {
  opacity: 1;
  pointer-events: all;
}

/* Responsive nav */
@media (max-width: 700px) {
  .header { padding: 0 16px; }
  .container { flex-direction: column; padding: 10px 0; }
  .nav { flex-wrap: wrap; justify-content: center; }
  .nav a { margin: 6px 12px; font-size: 15px; }
  .section { padding: 60px 20px; }
}