/* =============================================
   AKNAS MIMARLIK VE MOBILYA - STYLESHEET
   ============================================= */

/* ---------- CSS VARIABLES ---------- */
:root {
  --black: #0a0a0a;
  --dark: #1a1a1a;
  --gray-dark: #2d2d2d;
  --gray-mid: #6b6b6b;
  --gray-light: #b0b0b0;
  --off-white: #f5f5f3;
  --white: #ffffff;
  --accent: #c8a96e;
  --accent-dark: #a8893e;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-main: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
}

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

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

body {
  font-family: var(--font-main);
  background-color: var(--white);
  color: var(--dark);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* ---------- UTILITY ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  position: relative;
  padding-left: 36px;
}

.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--black);
}

.section-title span {
  color: var(--accent);
}

/* ---------- SCROLL ANIMATIONS ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- PRELOADER ---------- */
#preloader {
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-inner {
  text-align: center;
}

.preloader-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.preloader-logo span {
  color: var(--accent);
}

.preloader-bar {
  width: 200px;
  height: 1px;
  background: var(--gray-dark);
  position: relative;
  overflow: hidden;
}

.preloader-bar::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--accent);
  animation: preload 1.4s ease forwards;
}

@keyframes preload {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* =============================================
   HEADER / NAVIGATION
   ============================================= */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 24px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

#header.scrolled {
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.3);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-main {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--white);
  text-transform: uppercase;
  line-height: 1;
}

.logo-main span {
  color: var(--accent);
}

.logo-sub {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--gray-light);
  text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  position: relative;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--white);
}

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

.nav-cta {
  padding: 10px 22px;
  background: var(--accent);
  color: var(--black) !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  border-radius: 2px;
  transition: background var(--transition), transform var(--transition) !important;
}

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

.nav-cta:hover {
  background: var(--accent-dark) !important;
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
  transform-origin: left center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 0;
  right: -100%;
  width: min(340px, 85vw);
  height: 100vh;
  background: var(--black);
  z-index: 999;
  padding: 100px 40px 40px;
  gap: 8px;
  transition: right 0.5s cubic-bezier(0.77, 0, 0.18, 1);
  border-left: 1px solid var(--gray-dark);
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav a {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  padding: 14px 0;
  border-bottom: 1px solid var(--gray-dark);
  transition: color var(--transition), padding var(--transition);
}

.mobile-nav a:hover {
  color: var(--accent);
  padding-left: 8px;
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 998;
  backdrop-filter: blur(4px);
}

.mobile-overlay.active {
  display: block;
}

/* =============================================
   HERO SECTION
   ============================================= */
#hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?w=1920&q=85&auto=format&fit=crop');
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 8s ease forwards;
}

@keyframes heroZoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 10, 0.72) 0%,
    rgba(10, 10, 10, 0.45) 50%,
    rgba(10, 10, 10, 0.30) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
  animation: fadeUp 0.8s ease 0.4s both;
}

.hero-tag::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 24px;
  animation: fadeUp 0.8s ease 0.6s both;
}

.hero-title .line-accent {
  color: var(--accent);
  display: block;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin-bottom: 44px;
  line-height: 1.8;
  animation: fadeUp 0.8s ease 0.8s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 1s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: var(--accent);
  color: var(--black);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 169, 110, 0.35);
}

.btn-primary svg {
  transition: transform var(--transition);
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: transparent;
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  animation: fadeUp 0.8s ease 1.3s both;
}

.hero-scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.5; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(0.7); }
}

/* Hero Stats Bar */
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat {
  flex: 1;
  padding: 22px 32px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.hero-stat:last-child {
  border-right: none;
}

.hero-stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =============================================
   ABOUT SECTION
   ============================================= */
#about {
  padding: 120px 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-images {
  position: relative;
}

.about-img-main {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: 2px;
  box-shadow: var(--shadow-lg);
}

.about-img-secondary {
  position: absolute;
  width: 52%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 2px;
  bottom: -40px;
  right: -30px;
  border: 6px solid var(--white);
  box-shadow: var(--shadow-lg);
}

.about-exp-badge {
  position: absolute;
  top: 32px;
  right: -20px;
  background: var(--accent);
  color: var(--black);
  padding: 20px 24px;
  text-align: center;
  border-radius: 2px;
  box-shadow: var(--shadow-md);
}

.about-exp-badge .num {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  display: block;
}

.about-exp-badge .txt {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-content {
  padding-left: 20px;
}

.about-desc {
  font-size: 1.05rem;
  color: var(--gray-mid);
  line-height: 1.85;
  margin: 24px 0 36px;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.highlight-icon {
  width: 36px;
  height: 36px;
  background: var(--off-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.highlight-icon svg {
  color: var(--accent);
}

.highlight-text strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 2px;
}

.highlight-text span {
  font-size: 0.78rem;
  color: var(--gray-mid);
}

/* =============================================
   PROJECTS SECTION
   ============================================= */
#projects {
  padding: 120px 0;
  background: var(--off-white);
}

.projects-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 60px;
  gap: 24px;
  flex-wrap: wrap;
}

.filter-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  color: var(--gray-mid);
  border: 1px solid #d8d8d8;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  cursor: pointer;
  background: var(--dark);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.project-card:nth-child(1) {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

.project-card:nth-child(n+2) {
  aspect-ratio: 4/3;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.7s ease;
  filter: brightness(0.85);
}

.project-card:hover .project-img {
  transform: scale(1.07);
  filter: brightness(0.6);
}

.project-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px 28px 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  transform: translateY(0);
  transition: var(--transition);
}

.project-category {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}

.project-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.project-view-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--black);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  transform: translateY(12px);
  transition: transform var(--transition);
}

.project-card:hover .project-view-btn {
  transform: translateY(0);
}

/* =============================================
   SERVICES SECTION
   ============================================= */
#services {
  padding: 120px 0;
  background: var(--white);
}

.services-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 72px;
}

.services-header .section-tag {
  padding-left: 0;
}

.services-header .section-tag::before {
  display: none;
}

.services-desc {
  font-size: 1rem;
  color: var(--gray-mid);
  margin-top: 16px;
  line-height: 1.8;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: #e8e8e8;
  border: 1px solid #e8e8e8;
}

.service-card {
  background: var(--white);
  padding: 48px 36px;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--accent);
  transition: width 0.5s ease;
}

.service-card:hover::before {
  width: 100%;
}

.service-card:hover {
  background: var(--off-white);
}

.service-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 24px;
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--off-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: background var(--transition);
  color: var(--dark);
}

.service-card:hover .service-icon {
  background: var(--accent);
  color: var(--black);
}

.service-icon svg {
  transition: color var(--transition);
}

.service-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.service-desc {
  font-size: 0.88rem;
  color: var(--gray-mid);
  line-height: 1.75;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark);
  transition: color var(--transition), gap var(--transition);
}

.service-link:hover {
  color: var(--accent);
  gap: 12px;
}

/* =============================================
   SECTORS SECTION
   ============================================= */
#sectors {
  padding: 120px 0;
  background: var(--black);
  position: relative;
  overflow: hidden;
}

#sectors::before {
  content: 'SEKTÖRLER';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(80px, 15vw, 180px);
  font-weight: 900;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.02);
  white-space: nowrap;
  pointer-events: none;
}

.sectors-header {
  text-align: center;
  margin-bottom: 80px;
}

.sectors-header .section-tag {
  color: var(--accent);
  padding-left: 36px;
}

.sectors-header .section-title {
  color: var(--white);
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}

.sector-item {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  cursor: pointer;
}

.sector-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.7s ease;
  filter: brightness(0.45) grayscale(0.3);
}

.sector-item:hover img {
  transform: scale(1.1);
  filter: brightness(0.3) grayscale(0);
}

.sector-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 24px 16px;
  text-align: center;
}

.sector-icon-wrap {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  transition: border-color var(--transition), background var(--transition);
}

.sector-item:hover .sector-icon-wrap {
  border-color: var(--accent);
  background: var(--accent);
}

.sector-name {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
}

.sector-divider {
  width: 20px;
  height: 1px;
  background: var(--accent);
  margin: 8px auto 0;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.sector-item:hover .sector-divider {
  transform: scaleX(1);
}

/* =============================================
   PROCESS SECTION
   ============================================= */
#process {
  padding: 120px 0;
  background: var(--off-white);
}

.process-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 72px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  gap: 40px;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  transition: background var(--transition), color var(--transition);
}

.process-step:hover .step-number {
  background: var(--accent);
  color: var(--black);
}

.step-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.83rem;
  color: var(--gray-mid);
  line-height: 1.7;
}

/* =============================================
   CTA SECTION
   ============================================= */
#cta {
  padding: 140px 0;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1486325212027-8081e485255e?w=1920&q=75&auto=format&fit=crop');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}

.cta-subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 44px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-accent-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: transparent;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.btn-accent-outline:hover {
  background: var(--accent);
  color: var(--black);
}

/* =============================================
   CONTACT SECTION
   ============================================= */
#contact {
  padding: 120px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-info {
  padding-top: 8px;
}

.contact-desc {
  font-size: 1rem;
  color: var(--gray-mid);
  line-height: 1.8;
  margin: 20px 0 44px;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 48px;
}

.contact-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: var(--off-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent);
  transition: background var(--transition), color var(--transition);
}

.contact-item:hover .contact-item-icon {
  background: var(--accent);
  color: var(--black);
}

.contact-item-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 4px;
}

.contact-item-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border: 1px solid #e0e0e0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-mid);
  transition: all var(--transition);
}

.social-link:hover {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
  transform: translateY(-3px);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--off-white);
  padding: 52px 48px;
  border-radius: 2px;
}

.form-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full {
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-mid);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 18px;
  background: var(--white);
  border: 1px solid #e0e0e0;
  border-radius: 2px;
  font-family: var(--font-main);
  font-size: 0.9rem;
  color: var(--dark);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 169, 110, 0.12);
}

.form-textarea {
  height: 140px;
  resize: none;
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
  transition: background var(--transition), transform var(--transition);
}

.form-submit:hover {
  background: var(--accent);
  color: var(--black);
  transform: translateY(-1px);
}

.form-success {
  display: none;
  text-align: center;
  padding: 20px;
  background: rgba(200, 169, 110, 0.1);
  border: 1px solid var(--accent);
  border-radius: 2px;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--dark);
  font-weight: 500;
}

/* =============================================
   FOOTER
   ============================================= */
#footer {
  background: var(--black);
  padding: 80px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-main {
  font-size: 1rem;
}

.footer-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  margin: 16px 0 24px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social .social-link {
  border-color: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.45);
}

.footer-social .social-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--black);
}

.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition), padding var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-newsletter p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  margin-bottom: 20px;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-input {
  flex: 1;
  padding: 12px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-right: none;
  color: var(--white);
  font-size: 0.85rem;
  font-family: var(--font-main);
  outline: none;
  border-radius: 2px 0 0 2px;
  transition: border-color var(--transition);
}

.newsletter-input:focus {
  border-color: var(--accent);
}

.newsletter-input::placeholder {
  color: rgba(255,255,255,0.3);
}

.newsletter-btn {
  padding: 12px 18px;
  background: var(--accent);
  border: none;
  cursor: pointer;
  border-radius: 0 2px 2px 0;
  transition: background var(--transition);
  display: flex;
  align-items: center;
}

.newsletter-btn:hover {
  background: var(--accent-dark);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
}

.footer-copy span {
  color: var(--accent);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  transition: color var(--transition);
}

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

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 36px;
  right: 36px;
  width: 46px;
  height: 46px;
  background: var(--accent);
  color: var(--black);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(200, 169, 110, 0.4);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-dark);
  transform: translateY(-3px);
}

/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }

  .about-grid { grid-template-columns: 1fr; gap: 60px; }
  .about-images { max-width: 520px; margin: 0 auto; }
  .about-img-secondary { display: none; }
  .about-exp-badge { right: 20px; }
  .about-content { padding-left: 0; }

  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card:nth-child(1) { grid-column: span 2; }

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

  .sectors-grid { grid-template-columns: repeat(3, 1fr); }

  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }

  .hero-stats { display: none; }
}

/* Mobile */
@media (max-width: 768px) {
  .container { padding: 0 20px; }

  #header { padding: 18px 0; }

  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }

  #hero { height: 100svh; }

  .hero-title { font-size: 2.1rem; }

  .projects-grid { grid-template-columns: 1fr; }
  .project-card:nth-child(1) { grid-column: span 1; }

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

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

  .process-steps { grid-template-columns: 1fr 1fr; gap: 28px; }

  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 36px 28px; }

  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .back-to-top { bottom: 20px; right: 20px; }

  .about-highlights { grid-template-columns: 1fr; }

  #sectors { padding: 80px 0; }
  #projects { padding: 80px 0; }
  #services { padding: 80px 0; }
  #about { padding: 80px 0; }
  #contact { padding: 80px 0; }
  #cta { padding: 100px 0; }
  #process { padding: 80px 0; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .filter-btns { display: none; }
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-actions { flex-direction: column; }
  .btn-accent-outline, .cta-actions .btn-primary { width: 100%; justify-content: center; }
}