/* Modern Blog Tasarımı - PlentAcademy */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

/* Sidebar Navigation */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem 0;
  z-index: 1000;
  box-shadow: 3px 0 15px rgba(0,0,0,0.1);
}

.sidebar .logo {
  text-align: center;
  padding: 0 2rem 2rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 2rem;
}

.sidebar .logo img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-bottom: 1rem;
}

.sidebar .logo h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.sidebar .logo p {
  font-size: 0.9rem;
  opacity: 0.8;
}

.sidebar-nav {
  list-style: none;
  padding: 0 1rem;
}

.sidebar-nav li {
  margin-bottom: 0.5rem;
}

.sidebar-nav a {
  display: block;
  padding: 0.8rem 1rem;
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-weight: 500;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  background: rgba(255,255,255,0.1);
  color: white;
  transform: translateX(5px);
}

/* Main Content */
.main-content {
  margin-left: 280px;
  min-height: 100vh;
  background: #fff;
}

/* Header */
.header {
  background: white;
  padding: 1.5rem 2rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin-bottom: 2rem;
}

.header h1 {
  color: #2c3e50;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.header p {
  color: #7f8c8d;
  font-size: 1.1rem;
}

/* Content Sections */
.content-section {
  padding: 2rem;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 2px;
}

/* Kitap Grid */
.kitap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.kitap-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kitap-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.kitap-image {
  width: 100%;
  height: 550px;
  object-fit: cover;
}

.kitap-info {
  padding: 1.5rem;
}

.kitap-info h4 {
  color: #2c3e50;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.kitap-info p {
  color: #7f8c8d;
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}

.kitap-buttons {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}

.kitap-buttons a {
  transition: transform 0.3s ease;
}

.kitap-buttons a:hover {
  transform: scale(1.1);
}

/* Eğitim Grid */
.egitim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.egitim-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.egitim-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.egitim-image {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.egitim-info {
  padding: 1.5rem;
}

.egitim-info h4 {
  color: #2c3e50;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.egitim-info p {
  color: #7f8c8d;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Danışmanlık Grid */
.danismanlik-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.danismanlik-card {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.danismanlik-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.danismanlik-card h4 {
  color: #2c3e50;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.danismanlik-card p {
  color: #7f8c8d;
  font-size: 0.9rem;
  line-height: 1.5;
}

/* İletişim Form */
.iletisim-form {
  max-width: 600px;
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #667eea;
}

.btn {
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Sosyal Medya */
.sosyal-medya {
  margin-top: 3rem;
  text-align: center;
}

.sosyal-medya h4 {
  color: #2c3e50;
  margin-bottom: 1rem;
}

.sosyal-linkler {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.sosyal-linkler a {
  transition: transform 0.3s ease;
}

.sosyal-linkler a:hover {
  transform: scale(1.1);
}

/* Footer */
.footer {
  background: #2c3e50;
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background: #667eea;
  color: white;
  border: none;
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .header {
    padding: 1rem;
  }
  
  .content-section {
    padding: 1rem;
  }
  
  .kitap-grid,
  .egitim-grid,
  .danismanlik-grid {
    grid-template-columns: 1fr;
  }

  .iletisim-form {
    padding: 0 1rem;
  }
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}