/* ============================================
   Saf Foil — Glavni stilovi
   Mobile-first pristup
   ============================================ */

/* CSS varijable */
:root {
  --primary: #003366;
  --primary-dark: #002244;
  --primary-light: #004488;
  --secondary: #f8f9fa;
  --accent: #c0c0c0;
  --accent-dark: #a0a0a0;
  --text: #333333;
  --text-light: #666666;
  --white: #ffffff;
  --black: #000000;
  --border: #e0e0e0;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --transition: all 0.3s ease;
  --container-max: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--white);
  overflow-x: hidden;
}

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

picture {
  display: block;
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: 1rem;
}

address {
  font-style: normal;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* Tipografija */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}

h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h3 {
  font-size: clamp(1.125rem, 3vw, 1.375rem);
}

p {
  margin-bottom: 1rem;
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Sekcije */
.section {
  padding: 3rem 0;
}

.section-alt {
  background-color: var(--secondary);
}

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

/* Dugmad */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
}

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

.btn-outline:hover,
.btn-outline:focus {
  background-color: var(--primary);
  color: var(--white);
}

.btn-large {
  padding: 1rem 2.25rem;
  font-size: 1.1rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  z-index: 1000;
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: block;
  flex-shrink: 0;
}

.logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

/* Mobilni meni */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  z-index: 1002;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.menu-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.menu-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.main-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: var(--white);
  padding: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  z-index: 1001;
}

.main-nav.is-open {
  transform: translateX(0);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link:focus,
.nav-link.active {
  background-color: var(--secondary);
  color: var(--primary-light);
}

.has-submenu {
  position: relative;
}

.submenu-toggle {
  width: 100%;
}

.icon-chevron {
  transition: transform 0.3s ease;
}

.submenu-toggle[aria-expanded="true"] .icon-chevron {
  transform: rotate(180deg);
}

.submenu {
  display: none;
  padding-left: 1rem;
  border-left: 2px solid var(--border);
  margin-left: 1rem;
}

.submenu.is-open {
  display: block;
}

.submenu .nav-link {
  font-size: 1rem;
  font-weight: 500;
}

.header-phone {
  display: none;
}

/* Hero */
.hero {
  background-color: var(--secondary);
}

.hero.section {
  padding-top: calc(var(--header-height) + 2rem);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.hero-content h1 {
  color: var(--primary-dark);
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.1;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

.hero-content p {
  color: var(--text-light);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  margin-bottom: 1.75rem;
  line-height: 1.65;
}

.hero-content .btn {
  width: 100%;
  max-width: 280px;
  margin-bottom: 1rem;
}

.hero-badge {
  display: inline-block;
  color: var(--text-light);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  background: rgba(0, 51, 102, 0.08);
  border-radius: 999px;
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 520px;
  padding: 2rem;
  border-radius: 2rem;
  background: linear-gradient(135deg, rgba(0, 51, 102, 0.08) 0%, rgba(0, 34, 68, 0.04) 100%);
}

.hero-image-wrapper::before {
  content: '';
  position: absolute;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: rgba(0, 51, 102, 0.05);
  filter: blur(40px);
  z-index: 0;
}

.hero-image-wrapper img {
  position: relative;
  z-index: 1;
  max-width: 100%;
  max-height: 320px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 16px 32px rgba(0, 0, 0, 0.12));
}

/* Kategorije */
.categories-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.category-card {
  position: relative;
  display: flex;
  background-color: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  will-change: transform;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0.85;
  z-index: 2;
}

.category-card:hover,
.category-card:focus-within {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.category-link {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
}

.category-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  background-color: var(--secondary);
  overflow: hidden;
  padding: 1.5rem;
}

.category-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.5s ease;
  will-change: transform;
}

.category-card:hover .category-image img,
.category-card:focus-within .category-image img {
  transform: scale(1.08);
}

.category-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 1.5rem;
}

.category-content h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
}

.category-content p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.category-content .btn-outline {
  align-self: stretch;
  width: 100%;
}

/* Stagger animacija za kategorije */
.categories-grid .category-card:nth-child(2) { transition-delay: 0.1s; }
.categories-grid .category-card:nth-child(3) { transition-delay: 0.2s; }
.categories-grid .category-card:nth-child(4) { transition-delay: 0.3s; }

.section-subtitle.reveal {
  transition-delay: 0.1s;
}

/* Stats / Brojevi koji govore */
.stats {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.stats .section-title {
  color: var(--white);
  margin-bottom: 2.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transition: transform 0.35s ease, box-shadow 0.35s ease, background-color 0.35s ease;
  will-change: transform;
}

.stat-item:hover,
.stat-item:focus-within {
  transform: translateY(-8px);
  background-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-radius: 50%;
  margin-bottom: 0.5rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 1rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.85);
  max-width: 220px;
}

/* Stagger animacija za stats */
.stats-grid .stat-item:nth-child(2) { transition-delay: 0.1s; }
.stats-grid .stat-item:nth-child(3) { transition-delay: 0.2s; }
.stats-grid .stat-item:nth-child(4) { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .stat-item {
    transition: none;
  }
}

/* O firmi */
.about-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.about-content h2 {
  margin-bottom: 1.25rem;
}

.about-content p {
  margin-bottom: 1rem;
}

.about-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.about-image img {
  width: 100%;
  height: auto;
}

/* Prednosti */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.feature-card {
  background-color: var(--white);
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background-color: var(--secondary);
  color: var(--primary);
  border-radius: 50%;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  text-align: center;
}

.cta-container {
  max-width: 700px;
}

.cta h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.1rem;
  margin-bottom: 1.75rem;
  opacity: 0.95;
}

.cta .btn-primary {
  background-color: var(--white);
  color: var(--primary);
  border-color: var(--white);
}

.cta .btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--primary-dark);
}

/* Footer */
.site-footer {
  background-color: var(--primary-dark);
  color: var(--white);
  padding-top: 3rem;
}

.footer-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-brand img {
  height: 60px;
  width: auto;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links h3,
.footer-contact h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links a:hover,
.footer-links a:focus {
  color: var(--accent);
  padding-left: 0.25rem;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact a:hover,
.footer-contact a:focus {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

/* Page hero */
.page-hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 8rem 0 3rem;
  margin-top: var(--header-height);
}

.page-hero h1 {
  color: var(--white);
  margin-top: 1rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
  color: var(--accent);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb li[aria-current="page"]::before {
  content: '/';
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Intro sekcija */
.intro-section {
  background-color: var(--secondary);
}

.intro-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.intro-content h2 {
  margin-bottom: 1rem;
}

.intro-content p {
  font-size: 1.1rem;
  color: var(--text-light);
}

/* Proizvodi */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.product-card {
  background-color: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
  text-align: center;
  padding: 1.5rem;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.product-image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  margin-bottom: 1.25rem;
}

.product-image img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
}

.product-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.product-card .package {
  font-weight: 400;
  color: var(--text-light);
}

.product-code {
  color: var(--primary);
  font-weight: 600;
  font-family: var(--font-heading);
  margin-bottom: 0;
}

.product-note {
  margin-top: 2rem;
  padding: 1.25rem;
  background-color: #fff8e1;
  border-left: 4px solid #ffc107;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.product-note p {
  margin-bottom: 0;
}

/* O nama stranica */
.about-full {
  max-width: 900px;
  margin: 0 auto;
}

.about-text h2 {
  margin-bottom: 1.25rem;
}

.about-text p {
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

/* Galerija */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.gallery-item {
  display: block;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Kontakt */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info > p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.contact-details {
  display: grid;
  gap: 1.5rem;
}

.contact-item h3 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.contact-item a {
  color: var(--primary);
}

.contact-item a:hover {
  text-decoration: underline;
}

/* Kontakt forma */
.contact-form {
  background-color: var(--secondary);
  padding: 1.5rem;
  border-radius: var(--radius);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--primary);
}

.required {
  color: #dc3545;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #dc3545;
}

.error-message {
  display: block;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.375rem;
  min-height: 1.25rem;
}

.form-status {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  display: none;
}

.form-status.success {
  display: block;
  background-color: #d4edda;
  color: #155724;
}

.form-status.error {
  display: block;
  background-color: #f8d7da;
  color: #721c24;
}

/* Slika objekta */
.object-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  max-width: 900px;
  margin: 0 auto;
}

.object-image img {
  width: 100%;
  height: auto;
}

/* Mapa */
.map-section {
  line-height: 0;
}

.map-section iframe {
  width: 100%;
  height: 350px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox-close {
  top: -50px;
  right: 0;
}

.lightbox-prev {
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
}