/* ==========================================================================
   TASARIM SISTEMI VE CSS MOTORU (SIFIR EMOJI - MODERN BLOGGER MIMARISI)
   ========================================================================== */
:root {
  --brand: #7FBD28;
  --brand-dark: #547E1A;
  --accent: #D830E8;
  --bg: #FAFAF8;
  --card: #FEFEFF;
  --text: #1F231A;
  --muted: #747E67;
  --border: #E1E4DB;
  --footer-bg: #1A2111;
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 6px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 32px rgba(0,0,0,0.12);
  --radius-card: 12px;
  --radius-pill: 999px;
  --radius-input: 8px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ERISILEBILIRLIK SKIP LINK */
.skip-link {
  position: absolute;
  top: -100px;
  left: 24px;
  background: var(--brand);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: var(--radius-input);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
@media (min-width: 1024px) {
  .container {
    padding: 0 48px;
  }
}

/* ==========================================================================
   HEADER & STICKY NAV (OPAK VE KESIN ARKAPLAN)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  height: 64px;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
  transition: all 0.2s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--brand);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
}
.logo-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  background: var(--brand);
  color: #ffffff;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.desktop-nav {
  display: none;
}
@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 28px;
  }
}
.nav-link {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  color: var(--brand);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-trigger {
  height: 38px;
  padding: 0 14px;
  border-radius: var(--radius-input);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}
.search-trigger:hover {
  background: var(--card);
  border-color: var(--accent);
  color: var(--accent);
}
.btn-cta {
  background: var(--accent);
  color: #ffffff;
  padding: 8px 20px;
  height: 38px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  transition: all 0.2s ease;
}
.btn-cta:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #ffffff;
}

/* MOBIL MENU */
.mobile-menu-btn {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}
@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 340px;
  height: 100vh;
  background: #ffffff;
  z-index: 2000;
  box-shadow: -8px 0 24px rgba(0,0,0,0.12);
  transition: right 0.25s ease;
  padding: 24px;
  display: flex;
  flex-direction: column;
}
.mobile-drawer.open {
  right: 0;
}
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 1999;
  display: none;
}
.drawer-backdrop.open {
  display: block;
}
.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.drawer-close {
  background: transparent;
  border: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--text);
}
.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.drawer-nav a {
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

/* ==========================================================================
   ARAMA MODALI
   ========================================================================== */
.search-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 15vh 20px 20px;
}
.search-modal.open {
  display: flex;
}
.search-modal-box {
  background: #ffffff;
  width: 100%;
  max-width: 600px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.search-input-wrap {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.search-input {
  width: 100%;
  border: none;
  outline: none;
  font-size: 18px;
  color: var(--text);
  font-family: var(--font-body);
}
.search-popular {
  padding: 12px 20px;
  background: var(--bg);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}
.popular-chip {
  background: #ffffff;
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  color: var(--brand);
  font-weight: 500;
}
.popular-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.search-results {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px 0;
}
.search-result-item {
  padding: 12px 20px;
  display: block;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s ease;
}
.search-result-item:hover {
  background: var(--bg);
}
.search-result-title {
  color: var(--brand);
  font-weight: 600;
  font-size: 15px;
}
.search-result-url {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}
.search-result-snippet {
  color: var(--text);
  font-size: 13px;
  margin-top: 4px;
}
.search-empty {
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ==========================================================================
   HERO & ANSWER PARAGRAFI
   ========================================================================== */
.hero-section {
  padding: 56px 0 40px;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(255,255,255,0.6) 100%);
  border-bottom: 1px solid var(--border);
}
@media (min-width: 1024px) {
  .hero-section {
    padding: 80px 0 56px;
  }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
  }
}
.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  line-height: 1.18;
  color: var(--brand);
  letter-spacing: -0.8px;
  margin-bottom: 16px;
}
@media (min-width: 768px) {
  .hero-title {
    font-size: 46px;
  }
}
.hero-desc {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

/* ANSWER PARAGRAFI (GEO & AI SNIPPET KRITIK) */
.answer {
  display: block;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 18px 24px;
  margin: 20px 0 28px 0;
  box-shadow: var(--shadow-sm);
  font-weight: 500;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid var(--accent);
}
.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #ffffff;
  transform: translateY(-1px);
}
.btn-secondary, .btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover, .btn-outline:hover {
  background: var(--card);
  border-color: var(--accent);
  color: var(--accent);
}

/* ==========================================================================
   GUVEN SERIDI (TRUST STRIP)
   ========================================================================== */
.trust-strip {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
  margin: 0 0 48px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 768px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}
@media (max-width: 480px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
}
.trust-item, .trust-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 16px;
  border-right: 1px solid var(--border);
}
.trust-item:last-child, .trust-col:last-child {
  border-right: none;
}
@media (max-width: 768px) {
  .trust-item:nth-child(2), .trust-col:nth-child(2) {
    border-right: none;
  }
}
.trust-value, .trust-num {
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.2;
  margin-bottom: 4px;
}
.trust-label {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

/* ==========================================================================
   BOLUMLER VE KARTLAR (6 KONU KARTI)
   ========================================================================== */
.section {
  padding: 48px 0;
}
.section-header, .section-head {
  text-align: center;
  margin-bottom: 36px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--muted);
}

.cards-grid, .topic-grid, .related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}
@media (max-width: 1024px) {
  .cards-grid, .topic-grid, .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .cards-grid, .topic-grid, .related-grid {
    grid-template-columns: 1fr;
  }
}

.card, .topic-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow-sm);
}
.card:hover, .topic-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.card-icon, .card-icon-pill {
  display: inline-flex;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--brand);
  font-weight: 800;
  font-size: 15px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.card-title {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 10px;
  line-height: 1.35;
}
.card-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}
.card-link, .card-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease, color 0.2s ease;
}
.card:hover .card-link, .topic-card:hover .card-cta {
  color: var(--brand-dark);
  gap: 8px;
}

/* ==========================================================================
   ICERIK VE TIPOGRAFI (BLOGGER DERIN YAZI BLOKLARI)
   ========================================================================== */
.content-article {
  max-width: 820px;
  margin: 0 auto;
  line-height: 1.75;
  font-size: 17px;
  color: var(--text);
}
.content-article h2 {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 800;
  color: var(--brand);
  margin-top: 48px;
  margin-bottom: 16px;
  letter-spacing: -0.4px;
  line-height: 1.3;
}
.content-article h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--brand);
  margin-top: 32px;
  margin-bottom: 12px;
  line-height: 1.4;
}
.content-article p {
  margin-bottom: 22px;
  color: var(--text);
  line-height: 1.75;
}
.content-article ul {
  margin: 0 0 24px 24px;
  list-style-type: disc;
}
.content-article li {
  margin-bottom: 10px;
  line-height: 1.65;
}
.content-article blockquote {
  border-left: 4px solid var(--accent);
  background: var(--card);
  padding: 18px 24px;
  border-radius: 8px;
  margin: 24px 0;
  font-style: italic;
  color: var(--muted);
  border: 1px solid var(--border);
  border-left-width: 4px;
}

/* ==========================================================================
   KARSILASTIRMA TABLOSU
   ========================================================================== */
.table-container, .table-responsive {
  overflow-x: auto;
  margin: 36px 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  box-shadow: var(--shadow-sm);
}
.data-table, table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 15px;
  min-width: 620px;
}
.data-table caption, table caption {
  padding: 16px 20px;
  text-align: left;
  font-weight: 700;
  font-size: 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  color: var(--brand);
}
.data-table thead th, table thead th {
  background: var(--brand);
  color: #ffffff;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.3px;
  white-space: nowrap;
  border-bottom: 2px solid var(--brand-dark);
}
.data-table tbody td, .data-table tbody th, table tbody td, table tbody th {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: top;
  line-height: 1.5;
}
.data-table tbody tr:nth-child(even), table tbody tr:nth-child(even) {
  background: var(--bg);
}
.data-table tbody tr:hover, table tbody tr:hover {
  background: rgba(0,0,0,0.02);
}
.data-table tbody tr:last-child td, .data-table tbody tr:last-child th,
table tbody tr:last-child td, table tbody tr:last-child th {
  border-bottom: none;
}

/* ==========================================================================
   SSS ACCORDION (KATLANABILIR MODERN SORU-CEVAP)
   ========================================================================== */
.accordion, .faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 32px 0;
}
.accordion-item, .faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.accordion-item:hover, .faq-item:hover {
  border-color: var(--accent);
}
.accordion-item.active, .faq-item.active {
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}
.accordion-header, .faq-button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}
.accordion-header:hover, .faq-button:hover {
  background: var(--bg);
  color: var(--brand);
}
.accordion-icon, .faq-icon {
  display: inline-flex;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--brand);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
  flex-shrink: 0;
  margin-left: 16px;
}
.accordion-header[aria-expanded="true"] .accordion-icon,
.accordion-item.active .accordion-icon,
.faq-button[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}
.accordion-body, .faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  background: var(--card);
}
.accordion-body.open, .accordion-item.active .accordion-body, .faq-answer.open {
  display: block;
}

/* ==========================================================================
   ALT SAYFA SAYFA DUZENI & YAPISKAN ICINDEKILER (TOC)
   ========================================================================== */
.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding: 40px 24px 80px;
  max-width: 1280px;
  margin: 0 auto;
}
@media (min-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}
.content-col {
  min-width: 0;
}
.sidebar-col {
  display: none;
}
@media (min-width: 1024px) {
  .sidebar-col {
    display: block;
  }
}
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
  align-items: center;
}
.breadcrumb a {
  color: var(--brand);
  text-decoration: none;
}
.page-title {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.6px;
}
.meta-row {
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
  align-items: center;
  flex-wrap: wrap;
}
.toc-card {
  position: sticky;
  top: 88px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.toc-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toc-list a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  transition: color 0.15s ease;
  display: block;
}
.toc-list a:hover {
  color: var(--accent);
  font-weight: 600;
}

.cta-banner {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin: 40px 0;
  text-align: center;
}
.cta-banner h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 8px;
}
.cta-banner p {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 20px;
}

.sources-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  font-size: 13px;
  color: var(--muted);
  margin-top: 40px;
}
.sources-box ul {
  margin: 8px 0 0 16px;
}

/* ==========================================================================
   FOOTER (3 KOLON + ALT BAR)
   ========================================================================== */
.site-footer {
  background: var(--footer-bg);
  color: #94a3b8;
  padding: 64px 0 24px;
  margin-top: auto;
  border-top: 1px solid #1e293b;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand-title {
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
}
.footer-brand-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #94a3b8;
  margin-bottom: 16px;
}
.footer-email-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease;
}
.footer-email-link:hover {
  color: #ffffff;
}
.footer-heading {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s ease;
}
.footer-nav a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}

/* ==========================================================================
   404 SAYFASI
   ========================================================================== */
.error-page {
  text-align: center;
  padding: 80px 24px;
  max-width: 900px;
  margin: 0 auto;
}
.error-code {
  font-family: var(--font-heading);
  font-size: 96px;
  font-weight: 900;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -3px;
}
.error-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}
.error-desc {
  font-size: 16px;
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

/* BACK TO TOP */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  z-index: 900;
  transition: transform 0.2s ease, background 0.2s ease;
}
.back-to-top:hover {
  transform: translateY(-2px);
  background: var(--brand-dark);
}