/* =================================================================
   Ortopedist - Ana CSS
   Renk paleti: profesyonel, sakin, tıbbi
   ================================================================= */

:root {
  /* Renkler */
  --color-bg: #fefefe;
  --color-surface: #ffffff;
  --color-surface-2: #f7f8fa;
  --color-border: #e6e8ed;
  --color-text: #1a2332;
  --color-text-muted: #5a6473;
  --color-text-light: #8a94a3;

  --color-primary: #0d6e70;          /* Sakin teal - sağlık/güven */
  --color-primary-hover: #0a5759;
  --color-primary-light: #e0f2f3;

  --color-accent: #d97706;           /* Sıcak vurgu - uzmanlık */
  --color-success: #16a34a;
  --color-warning: #ea580c;
  --color-danger: #dc2626;

  /* Tipografi */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Source Serif Pro', Georgia, serif;
  --font-arabic: 'Noto Naskh Arabic', 'Inter', sans-serif;

  /* Aralıklar */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;

  /* Yarıçap */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Gölge */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);

  /* Container */
  --container-max: 1180px;
  --container-narrow: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

body.rtl {
  font-family: var(--font-arabic);
  direction: rtl;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container.narrow { max-width: var(--container-narrow); }

/* =================================================================
   Header
   ================================================================= */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.95);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-lg);
  max-width: var(--container-max);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
}
.logo:hover { text-decoration: none; }
.logo-mark {
  color: var(--color-primary);
  font-size: 1.3em;
  line-height: 1;
}

.main-nav {
  display: flex;
  gap: var(--space-lg);
  flex: 1;
  justify-content: center;
}
.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}
.main-nav a:hover {
  text-decoration: none;
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.lang-switcher {
  display: flex;
  gap: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px;
  background: var(--color-surface-2);
}
.lang-switcher a {
  padding: 4px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: 4px;
  transition: all .15s;
}
.lang-switcher a:hover { text-decoration: none; color: var(--color-text); }
.lang-switcher a.active {
  background: var(--color-primary);
  color: white;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav, .lang-switcher {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    padding: 5rem 2rem 2rem;
    transform: translateY(-100%);
    transition: transform .3s;
    z-index: 40;
  }
  body.nav-open .main-nav { transform: translateY(0); }
}

/* =================================================================
   Hero
   ================================================================= */
.hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #f0f9fa 100%);
  padding: var(--space-2xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
body.rtl .hero-title { font-family: var(--font-arabic); }

.hero-subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin: 0 0 var(--space-xl);
}
.hero-search {
  display: flex;
  max-width: 480px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.hero-search input {
  flex: 1;
  border: 0;
  padding: 0.875rem 1.25rem;
  font-size: 1rem;
  outline: none;
  background: transparent;
}
.hero-search button {
  border: 0;
  padding: 0 1.25rem;
  background: var(--color-primary);
  color: white;
  font-size: 1.1rem;
  cursor: pointer;
  font-weight: 600;
}

/* =================================================================
   Posts Grid
   ================================================================= */
.posts-section { padding: var(--space-2xl) var(--space-lg); }

.section-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin: 0 0 var(--space-xl);
}
body.rtl .section-title { font-family: var(--font-arabic); }

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}
.post-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--color-surface-2);
}
.post-card-body { padding: var(--space-lg); }
.post-card-cat {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-sm);
}
.post-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-sm);
}
body.rtl .post-card-title { font-family: var(--font-arabic); }
.post-card-title a { color: var(--color-text); }
.post-card-title a:hover { color: var(--color-primary); text-decoration: none; }
.post-card-excerpt {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0 0 var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card-meta { color: var(--color-text-light); font-size: 0.85rem; }

.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--space-2xl);
}
.pagination a, .pagination span {
  min-width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.pagination a.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* =================================================================
   Single Post
   ================================================================= */
.post-article { padding: var(--space-2xl) 0; }
.post-header { text-align: center; margin-bottom: var(--space-xl); }
.post-category {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}
.post-title {
  font-family: var(--font-serif);
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-md);
}
body.rtl .post-title { font-family: var(--font-arabic); }
.post-meta {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}
.post-hero-image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin: var(--space-xl) 0;
}

.prose {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-text);
}
body.rtl .prose { font-family: var(--font-arabic); font-size: 1.05rem; }

.prose h1, .prose h2, .prose h3, .prose h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.3;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--color-text);
}
body.rtl .prose h1, body.rtl .prose h2, body.rtl .prose h3, body.rtl .prose h4 {
  font-family: var(--font-arabic);
}
.prose h1 { font-size: 1.875rem; display: none; /* Başlık zaten üstte */ }
.prose h2 { font-size: 1.5rem; }
.prose h3 {
  font-size: 1.25rem;
  padding-left: var(--space-md);
  border-left: 3px solid var(--color-primary);
}
body.rtl .prose h3 {
  padding-left: 0;
  padding-right: var(--space-md);
  border-left: 0;
  border-right: 3px solid var(--color-primary);
}
.prose p { margin: 0 0 var(--space-md); }
.prose ul, .prose ol { padding-left: 1.5rem; margin: 0 0 var(--space-md); }
body.rtl .prose ul, body.rtl .prose ol { padding-left: 0; padding-right: 1.5rem; }
.prose li { margin-bottom: 0.4rem; }
.prose blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--color-primary);
  background: var(--color-surface-2);
  font-style: italic;
  color: var(--color-text-muted);
}
.prose hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-xl) 0; }
.prose code {
  background: var(--color-surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.prose img { border-radius: var(--radius-md); margin: var(--space-lg) 0; }

.other-langs {
  margin: var(--space-2xl) 0 0;
  padding: var(--space-md);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  text-align: center;
}
.other-langs a { margin: 0 var(--space-xs); font-weight: 600; }

.related-posts { padding: var(--space-2xl) 0; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}
.related-card {
  display: block;
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
}
.related-card:hover { border-color: var(--color-primary); text-decoration: none; }
.related-card h4 { margin: 0 0 var(--space-xs); font-size: 1rem; }
.related-card p { margin: 0; color: var(--color-text-muted); font-size: 0.875rem; }

/* =================================================================
   Pages (about, contact, etc)
   ================================================================= */
.page { padding: var(--space-2xl) var(--space-lg); }
.page h1 {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  margin-top: 0;
}
body.rtl .page h1 { font-family: var(--font-arabic); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}
.contact-card h3 { margin: 0 0 var(--space-xs); font-size: 1rem; color: var(--color-primary); }

.search-form { display: flex; gap: var(--space-xs); margin: var(--space-lg) 0; }
.search-form input { flex: 1; padding: 0.75rem 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.search-form button { padding: 0.75rem 1.5rem; background: var(--color-primary); color: white; border: 0; border-radius: var(--radius-sm); cursor: pointer; font-weight: 600; }

.error-page { text-align: center; padding: var(--space-2xl) var(--space-lg); }
.error-page h1 { font-size: 6rem; margin: 0; color: var(--color-primary); font-family: var(--font-sans); }

.btn {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: background .2s;
}
.btn:hover { background: var(--color-primary-hover); text-decoration: none; color: white; }

/* =================================================================
   Footer
   ================================================================= */
.site-footer {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
  padding: var(--space-2xl) 0 var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
.footer-grid h4 { margin: 0 0 var(--space-sm); font-size: 1rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 4px; }
.footer-links a { color: var(--color-text-muted); }
.muted { color: var(--color-text-muted); }
.small { font-size: 0.875rem; }
.copyright { text-align: center; color: var(--color-text-light); font-size: 0.875rem; margin: var(--space-md) 0 0; }
.site-footer hr { border: 0; border-top: 1px solid var(--color-border); margin: 0; }

.empty { text-align: center; padding: var(--space-2xl); color: var(--color-text-muted); }