:root {
  --primary: #0f172a;
  --accent: #2563eb;
  --bg-light: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --surface: #ffffff;
  --radius: 16px;
  --ease: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text-main);
  background: var(--bg-light);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

img[loading="lazy"] {
  content-visibility: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: #1d4ed8;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 200;
  background: var(--primary);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}

.skip-link:focus {
  top: 12px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 12px 24px;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--primary);
}

.site-nav ul,
.footer-grid nav ul,
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav ul {
  gap: 4px;
}

.site-nav a {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  transition: background var(--ease), color var(--ease);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--bg-light);
  color: var(--accent);
}

.breadcrumb {
  margin: 16px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.breadcrumb ol {
  gap: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--accent);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin: 0 8px;
  color: #cbd5e1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  font-family: inherit;
}

.btn-small {
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease);
}

.btn-small:hover,
.btn-small:focus-visible {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.18);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  background: #fff;
  transition: background 0.2s;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--bg-light);
  color: var(--text-main);
}

.hero {
  padding: 48px 0 90px;
  content-visibility: visible;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

#hero-heading {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--primary);
  margin: 0 0 20px;
  font-weight: 800;
}

h2,
h3 {
  color: var(--primary);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1.25;
  margin: 0 0 12px;
}

h3 {
  font-size: 1.125rem;
  line-height: 1.35;
  margin: 0 0 10px;
}

.lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 12px;
}

.meta-line {
  font-size: 0.85rem;
  color: #94a3b8;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-panel {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
}

.metric {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.metric:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin: 0 0 6px;
}

.metric-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  margin: 0;
}

.section {
  padding-top: 90px;
  padding-bottom: 90px;
  content-visibility: auto;
  contain-intrinsic-size: 1px 800px;
}

.section-alt {
  background: #f1f5f9;
}

.section-header p {
  margin: 0;
  color: var(--text-muted);
  max-width: 640px;
}

.card-grid,
.expert-grid,
.about-grid,
.faq-wrap,
.footer-grid {
  display: grid;
  gap: 24px;
}

.card-grid {
  margin-top: 32px;
  grid-template-columns: repeat(3, 1fr);
}

.expert-grid {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: start;
}

.about-grid {
  grid-template-columns: 1fr 1.2fr;
  align-items: start;
  gap: 48px;
}

.card,
.expert-card,
.org-card,
.cta-box,
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
}

.card,
.expert-card,
.org-card {
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover,
.expert-card:hover,
.org-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px -5px rgba(0, 0, 0, 0.08);
}

.card p,
.about-grid article p,
.expert-card p,
.org-card p,
.hours,
.credential-list,
address {
  color: var(--text-muted);
}

.card p,
.about-grid article p,
.expert-card p,
.org-card p,
.hours {
  margin: 0 0 12px;
}

.credential-list {
  margin: 0;
  padding-left: 18px;
}

address {
  font-style: normal;
}

.accordion {
  display: grid;
  gap: 12px;
}

.accordion-item {
  overflow: hidden;
}

.accordion-item h3 {
  margin: 0;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  background: none;
  border: 0;
  padding: 18px 20px;
  font: inherit;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
}

.accordion-trigger:hover,
.accordion-trigger:focus-visible {
  background: var(--bg-light);
}

.accordion-trigger::after {
  content: "+";
  color: var(--text-muted);
  font-weight: 500;
}

.accordion-item.is-open .accordion-trigger::after {
  content: "–";
  color: var(--accent);
}

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}

.accordion-item.is-open .accordion-panel {
  grid-template-rows: 1fr;
}

.accordion-panel-inner {
  overflow: hidden;
  min-height: 0;
}

.accordion-panel p {
  margin: 0;
  padding: 0 20px 18px;
  color: var(--text-muted);
}

.section-cta {
  padding-bottom: 90px;
}

.cta-box {
  text-align: center;
  padding: 48px 32px;
}

.cta-box p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 24px;
}

.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--accent);
}

.footer-grid {
  grid-template-columns: 1.2fr 1fr 0.8fr;
  align-items: start;
}

.footer-grid nav ul {
  gap: 16px;
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 700;
  color: var(--primary);
}

.footer-legal {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .hero-grid,
  .card-grid,
  .expert-grid,
  .about-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 32px 0 72px;
  }

  .hero-panel {
    padding: 28px;
  }

  .section,
  .section-cta {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn-primary,
  .btn-small,
  .btn-ghost,
  .card,
  .expert-card,
  .org-card,
  .accordion-panel {
    transition: none;
  }

  .card:hover,
  .expert-card:hover,
  .org-card:hover,
  .btn-primary:hover,
  .btn-small:hover {
    transform: none;
  }
}

/* Akordiyon Gizleme ve Görünürlük Stilleri */
.accordion-panel[aria-hidden="true"] {
  display: none;
}

.accordion-panel[aria-hidden="false"] {
  display: block;
  animation: accordionFadeIn 0.25s ease-out;
}

.accordion-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  cursor: pointer;
}

.accordion-trigger::after {
  content: "+";
  font-size: 1.25rem;
  line-height: 1;
  margin-left: 1rem;
  transition: transform 0.2s ease;
}

.accordion-trigger[aria-expanded="true"]::after {
  content: "−";
}

@keyframes accordionFadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.media-frame {
  margin: 0 0 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #e2e8f0;
}

.media-frame img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 0 90px;
}

.article-wrap h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--primary);
  margin: 0 0 16px;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 24px;
}

.article-wrap p,
.article-wrap li {
  color: var(--text-muted);
}

.article-wrap h2 {
  margin-top: 32px;
}

.blog-list {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

@media (min-width: 768px) {
  .blog-list {
    grid-template-columns: 1fr 1fr;
  }
}