/* ------------------- Root Değişkenleri ------------------- */
:root {
  --bg: #f5f5f5;
  --text: #2d2d2d;
  --sidebar-bg: #e5e5e5;
  --card-bg: #ffffff;
  --accent: #255d85;
  --button-bg: #2f3e50;
  --button-hover: #3f4e60;
  --border: #d0d4d8;
  --placeholder: #6b7280;
  --shadow: rgba(0, 0, 0, 0.1);
  --image-opacity: 0.10;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --border-radius: 8px;
  --font-base: 16px;
  --font-sm: 0.85rem;
  --font-md: 0.9rem;
  --font-lg: 1.25rem;
  --font-xl: 1.5rem;
  --font-xxl: 2rem;
}

[data-theme="dark"] {
  --bg: #1f1f1f;
  --text: #e5e5e5;
  --sidebar-bg: #2a2e35;
  --card-bg: #35383f;
  --accent: #4a7fb3;
  --button-bg: #3c4859;
  --button-hover: #4c5869;
  --border: #4b5563;
  --placeholder: #9ca3af;
  --shadow: rgba(0, 0, 0, 0.3);
  --image-opacity: 0.08;
}

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

html {
  font-size: var(--font-base);
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

.layout {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* ------------------- Sidebar ------------------- */
.sidebar {
  width: 350px;
  background: rgba(229, 229, 229, 0.9);
  position: relative;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

[data-theme="dark"] .sidebar {
  background: rgba(42, 46, 53, 0.9);
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/profil.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: var(--image-opacity);
  z-index: -1;
}

.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: var(--border-radius);
}

.sidebar-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
}

.sidebar-footer {
  margin-top: var(--spacing-md);
  display: flex;
  flex-direction: row;
  gap: var(--spacing-sm);
  justify-content: center;
}

.sidebar h1 {
  font-size: var(--font-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.sidebar .subtitle {
  font-size: var(--font-sm);
  font-style: italic;
  color: color-mix(in srgb, var(--text), transparent 30%);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin: var(--spacing-md) 0;
}

.social-link {
  font-size: var(--font-sm);
  color: var(--text);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  transition: background 0.3s, color 0.3s, transform 0.3s;
}

.social-link:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
}

.social-link:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.sidebar-section {
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.sidebar-title {
  font-size: var(--font-lg);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

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

.service-links li {
  font-size: var(--font-md);
  margin-bottom: var(--spacing-sm);
  padding-left: 1.2em;
  position: relative;
}

.service-links li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.service-link {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s;
}

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

.contact-info p {
  font-size: var(--font-md);
  margin-bottom: var(--spacing-sm);
}

.contact-info a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* ------------------- Butonlar ------------------- */
.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--button-bg);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
  width: 150px; /* 1.5 kat genişletildi */
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:hover {
  background: var(--button-hover);
  transform: translateY(-2px);
}

.btn:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(0);
}

/* ------------------- Main İçerik ------------------- */
.content {
  flex: 1;
  padding: var(--spacing-xl) 50px var(--spacing-xl) 20px;
}

section {
  margin-bottom: var(--spacing-xl);
}

section h2 {
  font-size: var(--font-xx
l);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

section h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 50px;
  height: 3px;
  background: var(--accent);
}

section p {
  line-height: 1.7;
  font-size: var(--font-md);
  margin-bottom: var(--spacing-md);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  list-style: none;
}

.tags li {
  background: var(--card-bg);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: var(--font-md);
  color: var(--text);
  transition: background 0.3s, color 0.3s, transform 0.3s;
  cursor: pointer;
}

.tags li:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.card {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
  transition: background 0.3s, color 0.3s, transform 0.3s;
  cursor: pointer;
}

.card h3 {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.card p {
  font-size: var(--font-md);
  color: color-mix(in srgb, var(--text), transparent 30%);
}

.card:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-4px);
}

.card:hover h3,
.card:hover p {
  color: white;
}

.contact-form-section form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  color: var(--text);
  font-size: var(--font-md);
  transition: border-color 0.3s;
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: var(--accent);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--placeholder);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn-submit {
  align-self: flex-start;
  padding: var(--spacing-md) var(--spacing-lg);
}

/* ------------------- Mobil Uyumluluk ------------------- */
@media (max-width: 1200px) {
  .content {
    padding: var(--spacing-lg) 30px var(--spacing-lg) 20px;
  }
}

@media (max-width: 992px) {
  .layout {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    height: auto;
    position: static;
    min-height: auto;
    background: rgba(229, 229, 229, 0.85);
  }
  
  [data-theme="dark"] .sidebar {
    background: rgba(42, 46, 53, 0.85);
  }
  
  .sidebar::before {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.3;
  }
  
  .sidebar-footer {
    flex-direction: row;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
  }
  
  .content {
    padding: var(--spacing-lg) 20px;
  }
  
  section h2 {
    font-size: var(--font-xl);
  }
}

@media (max-width: 576px) {
  .sidebar {
    padding: var(--spacing-md);
  }
  
  .content {
    padding: var(--spacing-md) 15px;
  }
  
  .tags li {
    padding: var(--spacing-sm);
    font-size: var(--font-sm);
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .btn-submit {
    align-self: stretch;
  }
}


/* Toast mesajları */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 24px;
  background: var(--card-bg);
  color: var(--text);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px var(--shadow);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  background: #4CAF50;
  color: white;
}

.toast-error {
  background: #F44336;
  color: white;
}

.toast-info {
  background: #2196F3;
  color: white;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Sayfa geçiş efekti */
body {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.honeypot-hidden {
    display: none;
}