:root {
  --primary-red: #d32f2f;
  --dark-anthracite: #1e232a;
  --light-gray: #f8f9fa;
  --border-color: #e9ecef;
  --text-main: #333333;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  color: var(--text-main);
  background-color: #ffffff;
  line-height: 1.6;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Top Bar */
.top-bar {
  background: var(--dark-anthracite);
  color: #fff;
  font-size: 0.85rem;
  padding: 8px 0;
}
.top-bar-content {
  display: flex;
  justify-content: space-between;
}

/* Navbar */
.navbar {
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary-red);
  text-decoration: none;
}
.logo span {
  color: var(--dark-anthracite);
  font-weight: 400;
  font-size: 1rem;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 20px;
}
.nav-links a {
  text-decoration: none;
  color: var(--dark-anthracite);
  font-weight: 600;
  transition: color 0.3s;
}
.nav-links a:hover {
  color: var(--primary-red);
}

/* Hero */
.hero {
  padding: 60px 0;
  background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
.badge {
  background: rgba(211, 47, 47, 0.1);
  color: var(--primary-red);
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-block;
  margin-bottom: 15px;
}
.hero h1 {
  font-size: 2.5rem;
  color: var(--dark-anthracite);
  line-height: 1.2;
  margin-bottom: 15px;
}
.hero-buttons {
  margin-top: 25px;
  display: flex;
  gap: 15px;
}
.mascot-card {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  text-align: center;
  border-left: 5px solid var(--primary-red);
}
.mascot-icon {
  font-size: 3rem;
  color: var(--primary-red);
  margin-bottom: 15px;
}

/* Publishers Bar */
.publishers-bar {
  background: var(--dark-anthracite);
  color: white;
  padding: 25px 0;
  text-align: center;
}
.publishers-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 15px;
  color: #adb5bd;
}
.publishers-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.publishers-tags span {
  background: rgba(255,255,255,0.1);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
}

/* Sections & Grids */
.section {
  padding: 60px 0;
}
.bg-light {
  background-color: var(--light-gray);
}
.section-header {
  text-align: center;
  margin-bottom: 40px;
}
.section-header h2 {
  font-size: 2rem;
  color: var(--dark-anthracite);
}

.filter-buttons {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}
.filter-btn {
  background: white;
  border: 1px solid #ced4da;
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}
.filter-btn.active, .filter-btn:hover {
  background: var(--primary-red);
  color: white;
  border-color: var(--primary-red);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 25px;
}
.product-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
}
.product-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.product-info {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.product-info h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.product-info p {
  font-size: 0.85rem;
  color: #6c757d;
  margin-bottom: 15px;
  flex-grow: 1;
}
.product-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-red);
}

/* Butonlar */
.btn {
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
}
.btn-primary {
  background: var(--primary-red);
  color: white;
}
.btn-whatsapp {
  background: #25d366;
  color: white;
}
.btn-buy {
  background: #25d366;
  color: white;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Hakkımızda & Bilgi */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.payment-info-box {
  background: white;
  padding: 30px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}
.payment-info-box ul {
  list-style: none;
  margin-top: 15px;
}
.payment-info-box li {
  margin-bottom: 10px;
}

/* Footer */
.footer {
  background: var(--dark-anthracite);
  color: white;
  padding: 50px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #adb5bd;
}

/* Mobil Uyum */
@media(max-width: 768px) {
  .hero-grid, .about-grid, .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none; /* Mobilde sade görünüm */
  }
  .top-bar-content {
    flex-direction: column;
    text-align: center;
    gap: 5px;
  }
}