/* ===== TEKOGLU INSAAT - GLOBAL STYLES ===== */

:root {
  --primary: #1a3a2a;
  --primary-light: #2d5a3f;
  --secondary: #c8a96e;
  --secondary-light: #dfc99a;
  --accent: #e8a020;
  --dark: #1a1a1a;
  --gray: #666;
  --light-gray: #f5f5f0;
  --white: #fff;
  --shadow: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: var(--white);
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 58, 42, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  transition: var(--transition);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
}

.navbar .logo span {
  color: var(--secondary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

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

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

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

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,58,42,0.9) 0%, rgba(26,26,26,0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 20px;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.hero-content h1 span {
  color: var(--secondary);
}

.hero-content .tagline {
  font-size: 1.3rem;
  opacity: 0.9;
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-content .cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--secondary);
  color: var(--dark);
  font-weight: 600;
  border-radius: 50px;
  font-size: 1rem;
  transition: var(--transition);
  border: 2px solid var(--secondary);
}

.hero-content .cta-btn:hover {
  background: transparent;
  color: var(--secondary);
}

/* ===== SECTION COMMON ===== */
.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.section-title p {
  color: var(--gray);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-title .line {
  width: 60px;
  height: 3px;
  background: var(--secondary);
  margin: 15px auto 0;
  border-radius: 2px;
}

/* ===== BRAND CARDS (Homepage) ===== */
.brands {
  background: var(--light-gray);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.brand-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  display: block;
}

.brand-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.brand-card .card-img {
  height: 250px;
  overflow: hidden;
}

.brand-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.brand-card .card-body {
  padding: 25px;
}

.brand-card .card-body h3 {
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.brand-card .card-body p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.brand-card .card-body .card-link {
  color: var(--secondary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.brand-card .card-body .card-link:hover {
  color: var(--primary);
  gap: 10px;
}

/* ===== ABOUT SECTION ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

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

.about-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.about-text h3 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 15px;
}

.about-text p {
  color: var(--gray);
  margin-bottom: 15px;
  font-size: 1rem;
}

.about-text .features {
  list-style: none;
  margin-top: 20px;
}

.about-text .features li {
  padding: 8px 0;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.about-text .features li::before {
  content: '\2713';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--secondary);
  color: var(--white);
  border-radius: 50%;
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ===== SERVICES/FEATURES GRID ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--white);
  padding: 35px 25px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
  border-top: 3px solid transparent;
}

.feature-card:hover {
  border-top-color: var(--secondary);
  transform: translateY(-5px);
}

.feature-card .icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.feature-card h3 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* ===== GALLERY ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4/3;
  cursor: pointer;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item .overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,58,42,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.gallery-item .overlay span {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ===== CTA BANNER ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 60px 0;
  text-align: center;
  color: var(--white);
}

.cta-banner h2 {
  font-size: 2rem;
  margin-bottom: 15px;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 25px;
  font-size: 1.1rem;
}

.cta-banner .cta-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--secondary);
  color: var(--dark);
  font-weight: 600;
  border-radius: 50px;
  font-size: 1rem;
  transition: var(--transition);
}

.cta-banner .cta-btn:hover {
  background: var(--white);
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-info h3 {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 20px;
}

.contact-item .ci-icon {
  width: 45px;
  height: 45px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item .ci-text h4 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 3px;
}

.contact-item .ci-text p,
.contact-item .ci-text a {
  color: var(--gray);
  font-size: 0.95rem;
}

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  margin-bottom: 15px;
  transition: var(--transition);
  background: var(--white);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}

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

.contact-form button {
  padding: 14px 40px;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.contact-form button:hover {
  background: var(--primary-light);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 50px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 15px;
}

.footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--secondary);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary);
  color: var(--dark);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
}

/* ===== PAGE HEADER (Subpages) ===== */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.page-header-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.page-header h1 {
  font-size: 2.8rem;
  position: relative;
  z-index: 2;
  margin-bottom: 10px;
}

.page-header p {
  font-size: 1.15rem;
  opacity: 0.85;
  position: relative;
  z-index: 2;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .brand-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-content h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
  }

  .nav-links.active {
    display: flex;
  }

  .brand-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content .tagline {
    font-size: 1rem;
  }

  .section {
    padding: 50px 0;
  }

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

  .page-header h1 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.6rem;
  }

  .section-title h2 {
    font-size: 1.6rem;
  }
}