/* ============================================================
   ŽUFIĆ STUDIO — Brand Stylesheet
   Paleta boja usklađena s brand guidelines
   ============================================================ */

/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand boje */
  --color-dark: #1E1E1E;
  --color-accent: #84C4C2;
  --color-accent-dark: #6B9D9F;
  --color-accent-light: #9DD3D2;
  --color-accent-pale: #B5DFDE;
  --color-accent-mist: #CDEBE9;
  --color-accent-frost: #E2F2F1;
  --color-accent-ice: #F0F8F7;

  /* Neutralne */
  --color-bg: #F6F6F6;
  --color-surface: #FFFFFF;
  --color-text: #1E1E1E;
  --color-text-secondary: #606060;
  --color-text-muted: #8A8A8A;
  --color-border: #E6E6E6;
  --color-border-dark: #BDBDBD;

  /* Komplementarne */
  --color-teal: #2E5363;
  --color-sage: #8FB7B0;
  --color-olive: #A6B98A;
  --color-gold: #D4A72C;
  --color-cream: #F2E6C9;
  --color-terracotta: #C46A4A;
  --color-rose: #D9A3A1;

  /* Fontovi */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: block;
}

/* ========== NAVIGATION ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(246, 246, 246, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--nav-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.5rem;
  background: var(--color-dark);
  color: white !important;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--color-accent-dark);
}

.nav-cta::after { display: none !important; }

.nav-social { display: flex; align-items: center; gap: 0.5rem; margin-left: 0.5rem; }
.nav-social a { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; color: var(--color-text-muted); transition: var(--transition); }
.nav-social a:hover { color: var(--color-accent-dark); background: var(--color-accent-ice); }
.nav-social a svg { width: 16px; height: 16px; }

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(78, 138, 153, 0.25);
}

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

.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(132, 196, 194, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border-dark);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  transform: translateY(-2px);
}

.btn-arrow { transition: var(--transition); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
  width: 100%;
}

.hero h1 {
  margin-bottom: var(--space-md);
  max-width: 800px;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.hero-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.hero-decoration {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(132, 196, 194, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* ========== SERVICES ========== */
.services {
  padding: var(--space-2xl) 0;
  background: var(--color-surface);
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.services-header h2 { margin-bottom: var(--space-sm); }

.services-header p {
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.service-card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
}

.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(132, 196, 194, 0.1);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-ice);
  border-radius: 12px;
  margin-bottom: var(--space-md);
  color: var(--color-accent-dark);
}

.service-card h3 { margin-bottom: var(--space-xs); }

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========== PORTFOLIO ========== */
.portfolio { padding: var(--space-2xl) 0; }

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.portfolio-filters {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.55rem 1.3rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--color-text-secondary);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.portfolio-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  background: var(--color-border);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover img { transform: scale(1.05); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30, 30, 30, 0.85) 0%, rgba(30, 30, 30, 0) 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }

.portfolio-overlay h3 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.portfolio-overlay span {
  color: var(--color-accent-pale);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.portfolio-item:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.portfolio-more {
  text-align: center;
  margin-top: var(--space-lg);
}

/* ========== ABOUT PREVIEW ========== */
.about-preview { padding: var(--space-2xl) 0; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-text p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-accent);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: 300% 300%;
  animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 0%; }
  25% { background-position: 100% 0%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
  100% { background-position: 0% 0%; }
}

/* Noise overlay via pseudo-element */
.about-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.06;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 128px 128px;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.about-visual-text {
  position: relative;
  z-index: 2;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: white;
  text-align: center;
  padding: var(--space-md);
  opacity: 0.9;
  width: 100%;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-break: break-word;
}

.about-visual-text em {
  color: var(--color-accent-ice);
  font-style: italic;
}

/* Rotating word in about visual */
.about-rotating {
  display: inline-block;
  position: relative;
  color: var(--color-accent-ice);
  font-style: italic;
}

.about-rotating .aword {
  display: inline-block;
  opacity: 0;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%) translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  white-space: nowrap;
}

.about-rotating .aword.active {
  opacity: 1;
  position: relative;
  left: auto;
  transform: translateX(0) translateY(0);
}

/* ========== CONTACT CTA ========== */
.contact-cta {
  padding: var(--space-2xl) 0;
  background: var(--color-dark);
  color: white;
}

.contact-cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-cta h2 { color: white; margin-bottom: var(--space-sm); }
.contact-cta p { color: rgba(255,255,255,0.6); margin-bottom: var(--space-lg); }

.contact-form { display: flex; flex-direction: column; gap: var(--space-sm); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }

.form-input {
  width: 100%;
  padding: 1rem 1.2rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  color: white;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input::placeholder { color: rgba(255,255,255,0.35); }

.form-input:focus {
  border-color: var(--color-accent);
  background: rgba(132, 196, 194, 0.08);
}

textarea.form-input { min-height: 140px; resize: vertical; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.contact-info-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(132, 196, 194, 0.15);
  border-radius: 10px;
  flex-shrink: 0;
}

.contact-info-text { font-size: 0.95rem; }
.contact-info-text strong { display: block; margin-bottom: 2px; color: white; }
.contact-info-text span { color: rgba(255,255,255,0.55); }

/* ========== FOOTER ========== */
.footer {
  padding: var(--space-lg) 0;
  background: #111111;
  color: rgba(255,255,255,0.45);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-logo img {
  height: 24px;
  width: auto;
}

.footer-links { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.footer-links a { font-size: 0.85rem; transition: var(--transition); white-space: nowrap; }
.footer-links a:hover { color: var(--color-accent-pale); }

.footer-copy { font-size: 0.8rem; }

.footer-social { display: flex; align-items: center; gap: 0.6rem; }
.footer-social a { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.15); color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-social a:hover { color: white; border-color: var(--color-accent); background: rgba(132,196,194,0.15); }
.footer-social a svg { width: 16px; height: 16px; }

/* ========== PAGE HEADER (subpages) ========== */
.page-header {
  padding: calc(var(--nav-height) + var(--space-xl)) 0 var(--space-xl);
  text-align: center;
}

.page-header p {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: var(--space-sm) auto 0;
  font-size: 1.1rem;
}

/* ========== ANIMATIONS ========== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== CTA BANNER ========== */
.cta-banner {
  padding: var(--space-xl) 0;
  background: var(--color-dark);
  text-align: center;
  color: white;
}

.cta-banner h2 { color: white; margin-bottom: var(--space-sm); }

.cta-banner p {
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== ADMIN LOGIN BUTTON ========== */
.admin-login {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  z-index: 9999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-dark);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  transition: var(--transition);
}

.admin-login:hover {
  transform: scale(1.1);
  background: var(--color-accent);
}

.admin-login svg { width: 20px; height: 20px; fill: white; }

/* ========== RESPONSIVE ========== */
/* Nav dark variant — for pages with dark hero images */
.nav.nav-dark {
  background: rgba(30, 30, 30, 0.85);
  border-bottom-color: rgba(255,255,255,0.08);
}

.nav.nav-dark .nav-links a { color: rgba(255,255,255,0.7); }
.nav.nav-dark .nav-links a:hover,
.nav.nav-dark .nav-links a.active { color: white; }
.nav.nav-dark .menu-toggle span { background: white; }

/* Nav scrolled state — becomes solid */
.nav.nav-scrolled {
  background: rgba(246, 246, 246, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.nav.nav-dark.nav-scrolled {
  background: rgba(30, 30, 30, 0.98);
}

@media (max-width: 968px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
  }

  .nav.nav-dark .nav-links.active {
    background: var(--color-dark);
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-item:first-child {
    grid-column: span 2;
    grid-row: span 1;
  }

  .about-grid,
  .contact-cta-inner {
    grid-template-columns: 1fr;
  }

  .about-visual { aspect-ratio: 4/3; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer: smaller gaps, prevent wrapping */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .footer-links {
    gap: var(--space-sm);
  }

  .footer-links a {
    font-size: 0.8rem;
  }
}

@media (max-width: 640px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-item:first-child {
    grid-column: span 1;
  }

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

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }

  .footer-links {
    gap: 0.6rem 1rem;
  }
}