/* ============================================
   MOZ PROJE — Design System
   ============================================ */

:root {
  /* Colors */
  --color-bg-primary: #FAFAF7;
  --color-bg-secondary: #F2EFE8;
  --color-bg-tertiary: #ECE8DE;
  --color-bg-dark: #0B1A2E;
  --color-bg-darker: #050E1C;
  --color-bg-deepest: #03080F;

  --color-text-primary: #1A1F2E;
  --color-text-secondary: #5A5F6C;
  --color-text-muted: #8A8F9C;
  --color-text-light: #FAFAF7;
  --color-text-light-muted: #B8BCC8;

  --color-accent: #C9A961;
  --color-accent-bright: #D8B870;
  --color-accent-dark: #A68838;

  --color-border: #E2DED2;
  --color-border-dark: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

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

  /* Layout */
  --max-width: 1400px;
  --content-width: 1200px;
  --narrow-width: 900px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   Reset
   ============================================ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s var(--ease);
}

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

ul, ol {
  list-style: none;
}

/* ============================================
   Typography
   ============================================ */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-md);
  display: inline-block;
}

.eyebrow.eyebrow-light {
  color: var(--color-accent);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.hero h1 {
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

p {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.lead {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-text-primary);
  font-weight: 400;
}

em {
  font-style: normal;
  color: var(--color-accent-dark);
  font-weight: inherit;
}

/* ============================================
   Layout Containers
   ============================================ */

.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

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

section {
  padding: var(--space-3xl) 0;
  position: relative;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-2xl) 0;
  }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-color: var(--color-bg-dark);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--color-text-primary);
  color: var(--color-text-light);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-text-light);
  border-color: rgba(250, 250, 247, 0.4);
}

.btn-outline-light:hover {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-color: var(--color-accent);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-bright);
  border-color: var(--color-accent-bright);
}

.btn .arrow {
  transition: transform 0.3s var(--ease);
}

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

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(11, 26, 46, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s var(--ease);
}

.nav.scrolled {
  background: rgba(11, 26, 46, 0.98);
  padding: 0.875rem 0;
}

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

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

.nav-logo img {
  height: 44px;
  width: auto;
  display: block;
  transition: opacity 0.2s var(--ease);
}

.nav-logo:hover img {
  opacity: 0.85;
}

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

.nav-menu a {
  font-size: 0.875rem;
  color: var(--color-text-light-muted);
  letter-spacing: -0.005em;
  position: relative;
  transition: color 0.2s var(--ease);
}

.nav-menu a:hover {
  color: var(--color-text-light);
}

.nav-menu a.active {
  color: var(--color-accent);
}

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

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-light-muted);
  letter-spacing: 0.05em;
}

.lang-switch button {
  color: var(--color-text-light-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.4rem;
  transition: color 0.2s var(--ease);
  letter-spacing: 0.05em;
}

.lang-switch button.active {
  color: var(--color-accent);
}

.lang-switch button:hover {
  color: var(--color-text-light);
}

.lang-switch .divider {
  color: rgba(255, 255, 255, 0.2);
}

/* Language switch for article pages (dark nav) */
.article-lang {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.article-lang a {
  color: var(--color-text-light-muted);
  text-decoration: none;
  padding: 0.25rem 0.4rem;
  transition: color 0.2s var(--ease);
}

.article-lang a.active {
  color: var(--color-accent);
  font-weight: 600;
}

.article-lang a:hover {
  color: var(--color-text-light);
}

.article-lang .divider {
  color: rgba(255, 255, 255, 0.2);
}

.nav-cta {
  font-size: 0.8125rem;
  padding: 0.625rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-radius: 2px;
  font-weight: 500;
  transition: background 0.2s var(--ease);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 24px;
  height: 1.5px;
  background: var(--color-text-light);
  transition: all 0.3s var(--ease);
}

@media (max-width: 900px) {
  .nav-menu {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-menu.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    background: var(--color-bg-darker);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border-dark);
  }
}

/* ============================================
   Hero
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  color: var(--color-text-light);
  overflow: hidden;
  padding-top: 6rem;
  padding-bottom: var(--space-3xl);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.8);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(5, 14, 28, 0.4) 0%,
    rgba(5, 14, 28, 0.5) 50%,
    rgba(5, 14, 28, 0.95) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  width: 100%;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero-meta .line {
  width: 40px;
  height: 1px;
  background: var(--color-accent);
}

.hero h1 {
  color: var(--color-text-light);
  max-width: 1100px;
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.4s forwards;
}

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

.hero-tagline {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  max-width: 640px;
  margin-bottom: var(--space-xl);
  color: var(--color-text-light-muted);
  line-height: 1.5;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.8s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  z-index: 2;
}

.hero-scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, transparent, var(--color-accent));
  margin: 0.5rem auto 0;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.3); }
}

/* ============================================
   Reference Logo Bar
   ============================================ */

.ref-bar {
  background: var(--color-bg-dark);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border-dark);
}

.ref-bar-label {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-light-muted);
  margin-bottom: var(--space-lg);
}

.ref-marquee {
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.ref-track {
  display: flex;
  gap: var(--space-3xl);
  animation: marquee 40s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.ref-item {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.ref-item img {
  height: 38px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.55;
  transition: opacity 0.3s var(--ease);
}

.ref-item:hover img {
  opacity: 1;
}

.ref-item::after {
  content: "✦";
  margin-left: var(--space-3xl);
  color: rgba(201, 169, 97, 0.3);
  font-size: 0.7em;
  align-self: center;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================
   About + Stats Section
   ============================================ */

.about {
  background: var(--color-bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

.about-text h2 {
  margin-bottom: var(--space-lg);
}

.about-text h2 em {
  color: var(--color-accent-dark);
}

.about-text p {
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl) var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-bg-secondary);
  border-radius: 2px;
  border-left: 3px solid var(--color-accent);
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
}

.stat-num .plus {
  color: var(--color-accent-dark);
  font-weight: 500;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* ============================================
   Services Section
   ============================================ */

.services {
  background: var(--color-bg-secondary);
  position: relative;
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.services-header h2 em {
  color: var(--color-accent-dark);
}

.services-header p {
  margin-top: var(--space-md);
  font-size: 1.125rem;
}

.service {
  background: var(--color-bg-primary);
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: border-color 0.3s var(--ease);
}

.service:hover {
  border-color: var(--color-accent);
}

.service-header {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  align-items: center;
  padding: var(--space-xl);
  gap: var(--space-lg);
  cursor: pointer;
  transition: background 0.3s var(--ease), grid-template-columns 0.45s var(--ease), gap 0.45s var(--ease);
}

/* Open: thumbnail collapses and title slides left */
.service.open .service-header {
  grid-template-columns: 0fr 1fr auto;
  gap: 0 var(--space-lg);
}

.service-header:hover {
  background: var(--color-bg-tertiary);
}

.service-thumb {
  width: 100%;
  height: 110px;
  border-radius: 2px;
  overflow: hidden;
  background: var(--color-bg-dark);
  opacity: 1;
  transition: opacity 0.3s var(--ease);
}

.service-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.service:hover .service-thumb img {
  transform: scale(1.04);
}

/* Open: hide the header thumbnail (big image opens in the body) */
.service.open .service-thumb {
  opacity: 0;
}

.service-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-text-primary);
}

.service-toggle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--ease);
  flex-shrink: 0;
}

.service-toggle svg {
  width: 16px;
  height: 16px;
  transition: transform 0.4s var(--ease);
}

.service.open .service-toggle {
  background: var(--color-bg-dark);
  border-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

.service.open .service-toggle svg {
  transform: rotate(45deg);
}

.service-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease);
}

.service.open .service-body {
  grid-template-rows: 1fr;
}

.service-body-inner {
  overflow: hidden;
}

.service-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  padding: var(--space-xl) var(--space-xl) var(--space-xl);
  margin-top: 0;
  border-top: 1px solid var(--color-border);
  align-items: start;
}

@media (max-width: 900px) {
  .service-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .service-header {
    grid-template-columns: 72px 1fr auto;
    gap: var(--space-md);
  }
  .service.open .service-header {
    grid-template-columns: 0fr 1fr auto;
    gap: 0 var(--space-md);
  }
  .service-thumb {
    height: 56px;
  }
}

.service-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-dark);
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.service:hover .service-image img {
  transform: scale(1.03);
}

.service-image-tag {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-light);
  background: rgba(11, 26, 46, 0.7);
  backdrop-filter: blur(8px);
  padding: 0.5rem 0.75rem;
}

.service-description {
  font-size: 1.0625rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text-primary);
}

.service-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.service-list li {
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.service-list li::before {
  content: "—";
  color: var(--color-accent-dark);
  font-weight: 500;
  flex-shrink: 0;
}

.service-list li:last-child {
  border-bottom: none;
}

/* ============================================
   Certificates
   ============================================ */

.certificates {
  background: var(--color-bg-primary);
}

.cert-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.cert-header h2 em {
  color: var(--color-accent-dark);
}

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

@media (max-width: 768px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

.cert-card {
  background: var(--color-bg-secondary);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  position: relative;
  transition: all 0.3s var(--ease);
}

.cert-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.cert-icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-dark);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.cert-icon svg {
  width: 24px;
  height: 24px;
}

.cert-card h4 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

.cert-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

.cert-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.cert-link:hover {
  color: var(--color-bg-dark);
}

/* ============================================
   Team
   ============================================ */

.team {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  position: relative;
}

.team-header {
  margin-bottom: var(--space-2xl);
  max-width: 700px;
}

.team-header h2 {
  color: var(--color-text-light);
}

.team-header h2 em {
  color: var(--color-accent);
}

.team-header p {
  color: var(--color-text-light-muted);
  margin-top: var(--space-md);
  font-size: 1.125rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
}

.team-card {
  position: relative;
}

.team-photo {
  aspect-ratio: 3/4;
  background: var(--color-bg-darker);
  margin-bottom: var(--space-md);
  overflow: hidden;
  position: relative;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.2) brightness(0.95);
  transition: filter 0.5s var(--ease);
}

.team-card:hover .team-photo img {
  filter: grayscale(0) brightness(1);
}

.team-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(5, 14, 28, 0.4));
  pointer-events: none;
}

.team-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.team-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ============================================
   References
   ============================================ */

.references {
  background: var(--color-bg-primary);
  overflow: hidden;
}

.ref-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.ref-header h2 em {
  color: var(--color-accent-dark);
}

.ref-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

@media (max-width: 900px) {
  .ref-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .ref-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.ref-cell {
  aspect-ratio: 5/3;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  transition: background 0.3s var(--ease);
  background: var(--color-bg-primary);
  overflow: hidden;
}

.ref-cell:hover {
  background: var(--color-bg-secondary);
}

.ref-cell img {
  max-width: 75%;
  max-height: 60%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(0.9) opacity(0.7);
  transition: filter 0.3s var(--ease);
}

/* White-on-dark logos (Rüzgar) need inverting on light grid */
.ref-cell img[src*="ruzgar"] {
  filter: invert(1) grayscale(0.9) opacity(0.7);
}

.ref-cell:hover img {
  filter: grayscale(0) opacity(1);
}

.ref-cell:hover img[src*="ruzgar"] {
  filter: invert(1) grayscale(0) opacity(1);
}

.ref-cell-text {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 400;
  text-align: center;
  color: var(--color-text-primary);
  letter-spacing: -0.005em;
  line-height: 1.2;
}

/* ============================================
   Knowledge Center (Bilgi Merkezi)
   ============================================ */

.knowledge {
  background: var(--color-bg-secondary);
}

.knowledge-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.knowledge-header h2 em {
  color: var(--color-accent-dark);
}

.knowledge-header-text {
  max-width: 600px;
}

.knowledge-header-text p {
  margin-top: var(--space-md);
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 1000px) {
  .knowledge-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .knowledge-grid {
    grid-template-columns: 1fr;
  }
}

.article-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all 0.3s var(--ease);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.article-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

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

.article-content {
  padding: var(--space-md) var(--space-md) var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-sm);
}

.article-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.article-excerpt {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-md);
  flex: 1;
}

.article-read {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-bg-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* ============================================
   Contact
   ============================================ */

.contact {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding-bottom: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

.contact-info h2 {
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.contact-info h2 em {
  color: var(--color-accent);
}

.contact-info p {
  color: var(--color-text-light-muted);
  margin-bottom: var(--space-xl);
  font-size: 1.0625rem;
}

.contact-details {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.contact-detail {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-md);
}

.contact-detail-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.contact-detail-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-light);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.contact-detail-value a:hover {
  color: var(--color-accent);
}

/* Full-width map */
.map-full {
  width: 100%;
  line-height: 0;
  padding: var(--space-2xl) 0 0;
  background: var(--color-bg-dark);
}

.map-full iframe {
  width: 100%;
  height: 460px;
  border: none;
  display: block;
  filter: grayscale(0.25);
}

@media (max-width: 600px) {
  .map-full iframe { height: 320px; }
}

/* Gold divider between dark sections */
.gold-divider {
  width: 100%;
  height: 3px;
  background: linear-gradient(
    90deg,
    rgba(201, 169, 97, 0) 0%,
    var(--color-accent) 18%,
    var(--color-accent) 82%,
    rgba(201, 169, 97, 0) 100%
  );
}

.contact-form {
  background: #FFFFFF;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: 2px;
}

.contact-form h3 {
  color: var(--color-bg-dark);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

.form-field {
  margin-bottom: var(--space-md);
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-bg-dark);
  margin-bottom: 0.5rem;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: transparent;
  border: 1px solid var(--color-bg-dark);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  border-radius: 2px;
  transition: border-color 0.2s var(--ease);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-bg-dark);
  box-shadow: 0 0 0 1px var(--color-bg-dark);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-text-muted);
}

.form-field textarea {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-body);
}

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

@media (max-width: 500px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-submit {
  width: 100%;
  padding: 1rem;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: -0.005em;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.2s var(--ease);
  margin-top: var(--space-sm);
}

.form-submit:hover {
  background: var(--color-accent-bright);
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-bg-deepest);
  color: var(--color-text-light-muted);
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 500px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  margin-bottom: var(--space-md);
}

.footer-brand img {
  height: 56px;
  width: auto;
  display: block;
  filter: brightness(1.05);
}

.footer-about {
  font-size: 0.9375rem;
  line-height: 1.55;
  max-width: 360px;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-col a {
  font-size: 0.9375rem;
  color: var(--color-text-light-muted);
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-text-light-muted);
  transition: color 0.2s var(--ease);
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

.footer-bottom .credit a {
  color: var(--color-accent);
  font-weight: 500;
}

.footer-bottom .credit a:hover {
  color: var(--color-accent-bright);
}

/* ============================================
   Article Page Styles
   ============================================ */

.article-page {
  padding-top: 8rem;
  padding-bottom: var(--space-3xl);
  background: var(--color-bg-primary);
}

.article-page .container {
  max-width: 760px;
}

.article-page-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-md);
}

.article-page h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--color-text-primary);
}

.article-page h1 em {
  color: var(--color-accent-dark);
}

.article-page-lead {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.article-page-image {
  margin: 0 calc(-1 * var(--space-lg)) var(--space-2xl);
  aspect-ratio: 21/9;
  overflow: hidden;
}

.article-page-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.875rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-body p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.article-body ul {
  margin-bottom: var(--space-md);
  padding-left: 0;
}

.article-body ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-primary);
}

.article-body ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent-dark);
  font-weight: 500;
}

.article-body strong {
  font-weight: 600;
  color: var(--color-text-primary);
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-xl);
  transition: gap 0.2s var(--ease);
}

.article-back:hover {
  gap: 0.75rem;
}

/* ============================================
   Scroll Reveal Animation
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   Utilities
   ============================================ */

.text-center { text-align: center; }
.text-light { color: var(--color-text-light) !important; }
.text-accent { color: var(--color-accent-dark); }
.mt-0 { margin-top: 0; }
.mb-lg { margin-bottom: var(--space-lg); }

::selection {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-muted);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-bg-dark);
}

/* ============================================
   Certificate Modal (Lightbox)
   ============================================ */

.cert-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: rgba(5, 14, 28, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.cert-modal.open {
  display: flex;
  opacity: 1;
}

.cert-modal-inner {
  position: relative;
  max-width: 900px;
  max-height: 90vh;
  width: 100%;
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.4s var(--ease-out);
}

.cert-modal.open .cert-modal-inner {
  transform: translateY(0);
}

.cert-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border-dark);
}

.cert-modal-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.cert-modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  font-size: 1.25rem;
  line-height: 1;
}

.cert-modal-close:hover {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}

.cert-modal-body {
  flex: 1;
  overflow: auto;
  background: #ffffff;
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-modal-body img {
  max-width: 100%;
  max-height: 100%;
  height: auto;
  width: auto;
  display: block;
}

.cert-modal-footer {
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
}

.cert-modal-download {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.2s var(--ease);
}

.cert-modal-download:hover {
  color: var(--color-bg-dark);
}

body.modal-open {
  overflow: hidden;
}

/* ============================================
   Stats Bar (horizontal, dark) — under hero
   ============================================ */

.stats-bar {
  background: var(--color-bg-dark);
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-border-dark);
}

.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: space-between;
  gap: var(--space-lg);
}

.stat-item-num {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.3vw, 4.0625rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
}

.stat-item-num .plus {
  color: var(--color-accent);
  font-weight: 500;
}

.stat-item-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-light-muted);
}

@media (max-width: 760px) {
  .stats-bar-grid {
    grid-template-columns: repeat(2, auto);
    justify-content: space-between;
    gap: var(--space-xl) var(--space-lg);
  }
}

/* ============================================
   About image (replaces stats box)
   ============================================ */