.topbar {
  position: relative;
  z-index: 101;
  background: #0a1429;
  color: #e2e8f0;
  font-size: 0.8125rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.topbar-glow {
  position: absolute;
  top: 50%;
  left: 22%;
  width: 520px;
  height: 220px;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    ellipse at center,
    rgba(167, 139, 250, 0.22) 0%,
    rgba(99, 102, 241, 0.14) 30%,
    rgba(99, 102, 241, 0) 65%
  );
  pointer-events: none;
  filter: blur(2px);
}

.topbar-inner {
  position: relative;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 44px;
}

.topbar-promo {
  margin: 0;
  text-align: left;
  font-weight: 500;
  letter-spacing: 0;
  white-space: nowrap;
  color: #f1f5f9;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-promo strong {
  font-weight: 600;
  color: #ffffff;
}

.topbar-promo-icon {
  margin-left: 0.4rem;
  display: inline-block;
  transform: translateY(1px);
  font-size: 0.95rem;
}

.topbar-contact {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.85rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.topbar-phone {
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  transition: color 160ms ease;
}

.topbar-phone:hover {
  color: #c7d2fe;
}

.topbar-sep {
  width: 1px;
  height: 14px;
  background: rgba(226, 232, 240, 0.22);
  display: inline-block;
}

.topbar-callback {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #ffffff;
  font-weight: 500;
  text-decoration: none;
  transition: color 160ms ease;
}

.topbar-callback i {
  color: #93c5fd;
  font-size: 0.95rem;
}

.topbar-callback:hover {
  color: #c7d2fe;
}

@media (max-width: 900px) {
  .topbar-inner {
    gap: 0.75rem;
    min-height: 40px;
  }

  .topbar-glow {
    left: 30%;
    width: 320px;
    height: 160px;
  }

  .topbar-promo {
    text-align: left;
    font-size: 0.75rem;
  }

  .topbar-contact {
    gap: 0.6rem;
    font-size: 0.75rem;
  }
}

@media (max-width: 560px) {
  .topbar-glow {
    display: none;
  }

  .topbar-promo {
    font-size: 0.7rem;
  }

  .topbar-promo-icon {
    display: none;
  }

  .topbar-callback-label {
    display: none;
  }

  .topbar-callback {
    gap: 0;
  }

  .topbar-callback i {
    font-size: 1rem;
  }

  .topbar-sep {
    display: none;
  }
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  isolation: isolate;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding-top: 14px;
  padding-bottom: 14px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

@media (min-width: 901px) {
  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1rem;
  }

  .header-inner > .logo {
    justify-self: start;
    margin-left: 9rem;
  }

  .topbar-promo {
    margin-left: 9rem;
  }

  .header-inner > .nav,
  .header-nav-cluster {
    justify-self: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    min-width: 0;
  }

  .header-nav-cluster .nav {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
  }

  .header-inner > .header-actions {
    justify-self: end;
  }
}

.header-nav-login {
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    visibility 0.22s ease;
}

.header-actions .btn i,
.header-nav-login i,
.nav-mobile-panel__foot-btn i {
  margin-right: 0.5rem;
  font-size: 0.95em;
  opacity: 0.85;
}

.header-actions .btn {
  padding: 0.4rem 0.95rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.header-actions .btn i {
  font-size: 0.9em;
  margin-right: 0.4rem;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.15rem 1rem;
  padding: 0.5rem 0;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}

@media (min-width: 1100px) {
  .nav-pill {
    gap: 0.2rem 1.35rem;
    padding: 0.55rem 2rem;
  }
}

.nav-pill a {
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-pill a:hover {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}

.nav-pill a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header-actions .btn {
  border-radius: 9999px;
  padding: 0.625rem 1.35rem;
  font-size: 1rem;
  font-weight: 600;
}

.header-nav-login.btn {
  border-radius: 9999px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.65);
  color: var(--color-text);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.nav-toggle:hover {
  background: #ffffff;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-toggle-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 22px;
}

.nav-toggle-bars span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile-panel[hidden] {
  display: none !important;
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  max-width: 1120px;
  margin: 0 auto;
}

.nav-mobile a,
.nav-mobile a.nav-mobile__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-sans);
  color: var(--color-text);
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}

.nav-mobile a:hover,
.nav-mobile a:focus-visible,
.nav-mobile a.nav-mobile__link:hover,
.nav-mobile a.nav-mobile__link:focus-visible {
  background: #f1f5f9;
  color: var(--color-primary);
}

@media (max-width: 900px) {
  body.nav-drawer-open {
    overflow: hidden;
    touch-action: none;
  }

  body.nav-drawer-open .header {
    z-index: 150000;
    overflow: visible;
    /* backdrop-filter fixed konumlu çocukların containing block'unu header yapar; menü tam ekran için kapat */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    isolation: auto;
  }

  .nav-mobile-panel:not([hidden]) {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    max-width: none;
    min-height: 100vh;
    min-height: 100dvh;
    z-index: 150001;
    box-sizing: border-box;
    /* Üst/sağ/sol: .header + .header-inner ile aynı — menü tuşu ile X aynı hizada */
    padding: calc(env(safe-area-inset-top, 0px) + 14px) max(6px, env(safe-area-inset-right, 0px)) max(12px, env(safe-area-inset-bottom, 0px)) max(12px, env(safe-area-inset-left, 0px));
    background: #ffffff;
    overflow: hidden;
  }

  .nav-mobile-panel__sheet {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .nav-mobile-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-shrink: 0;
    padding-bottom: 0.35rem;
  }

  .nav-mobile-panel__brand {
    display: flex;
    align-items: center;
    line-height: 0;
  }

  .nav-mobile-panel__logo {
    height: 34px;
    width: auto;
    max-width: min(180px, 52vw);
    object-fit: contain;
  }

  .nav-mobile-panel__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: var(--radius);
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.65);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
  }

  .nav-mobile-panel__close:hover {
    background: #ffffff;
    color: #000;
  }

  .nav-mobile-panel__close:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }

  .nav-mobile-panel__close-icon {
    display: block;
    flex-shrink: 0;
  }

  .nav-mobile-panel__scroll {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding: 0.5rem 0 max(1rem, env(safe-area-inset-bottom, 0px));
    display: flex;
    flex-direction: column;
  }

  .nav-mobile-panel:not([hidden]) .nav-mobile {
    max-width: none;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
  }

  .nav-mobile-panel:not([hidden]) .nav-mobile__link {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0;
    min-height: 52px;
    padding: 0.65rem 0;
    margin: 0;
    border-radius: 0;
    border-bottom: none;
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: #111827;
    text-decoration: none;
  }

  .nav-mobile-panel:not([hidden]) .nav-mobile__link:hover,
  .nav-mobile-panel:not([hidden]) .nav-mobile__link:focus-visible {
    background: transparent;
    color: #000;
  }

  .nav-mobile-panel:not([hidden]) .nav-mobile__link[aria-current="page"] {
    color: var(--color-primary);
    font-weight: 600;
  }

  .nav-mobile-panel__ctas {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.35rem;
    padding-top: 1rem;
  }

  .nav-mobile-panel__foot-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border-radius: 10px;
    text-decoration: none;
    transition: background 0.15s ease, border-color 0.15s ease, filter 0.15s ease, color 0.15s ease;
  }

  .nav-mobile-panel__foot-btn--ghost {
    color: #111827;
    background: #fff;
    border: 1px solid #e5e7eb;
  }

  .nav-mobile-panel__foot-btn--ghost:hover {
    background: #f9fafb;
    border-color: #d1d5db;
  }

  .nav-mobile-panel__foot-btn--primary {
    color: #fff;
    border: none;
    background: var(--color-primary);
    box-shadow: 0 10px 28px -12px rgba(79, 70, 229, 0.55);
  }

  .nav-mobile-panel__foot-btn--primary:hover {
    background: var(--color-primary-hover);
    filter: none;
  }

  .nav-mobile-panel__notch {
    display: block;
    width: 36px;
    height: 4px;
    flex-shrink: 0;
    margin: 1.25rem auto 0;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: #e5e7eb;
    box-shadow: 0 6px 0 #e5e7eb;
  }

  .header {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-inner {
    flex-wrap: nowrap;
    padding-left: max(12px, env(safe-area-inset-left, 0px));
    padding-right: max(6px, env(safe-area-inset-right, 0px));
    gap: 0.35rem;
    justify-content: flex-start;
  }

  .logo {
    margin-right: auto;
    flex-shrink: 0;
  }

  .nav {
    display: none;
  }

  .header-nav-cluster {
    display: none;
  }

  /* Tam ekran menüde Giriş/Kayıt; üst çubukta tekrar gösterme */
  .header-actions {
    display: none;
  }
}

@media (max-width: 600px) {
  .header-actions {
    gap: 0.35rem;
    flex-shrink: 0;
  }

  .header-actions .btn {
    padding: 0.55rem 0.8rem;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
  }
}

/* ======================================================
   MEGA DROPDOWN — Özellikler menüsü
   ====================================================== */

.nav-pill-dd-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--color-text);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-sans);
  line-height: 1.5;
  transition: color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.nav-pill-dd-btn:hover,
.nav-pill-dd-btn[aria-expanded="true"] {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}

.nav-pill-dd-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-dd-chev {
  flex-shrink: 0;
  transition: transform 0.22s ease;
}

.nav-pill-dd-btn[aria-expanded="true"] .nav-dd-chev {
  transform: rotate(180deg);
}

.nav-dd-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  max-width: calc(100vw - 32px);
  background: #ffffff;
  border-radius: 16px;
  box-shadow:
    0 4px 6px -2px rgba(15, 23, 42, 0.06),
    0 20px 48px -6px rgba(15, 23, 42, 0.16);
  border: 1px solid rgba(15, 23, 42, 0.07);
  padding: 1.125rem 1.125rem 0.875rem;
  z-index: 200;
  margin-top: 6px;
}

.nav-dd-panel[hidden] {
  display: none !important;
}

.nav-dd-panel__label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #94a3b8;
  padding: 0 0.5rem 0.75rem;
  margin: 0;
}

.nav-dd-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.25rem;
}

.nav-dd-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.75rem 0.875rem;
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s ease;
}

.nav-dd-item:hover {
  background: #f8fafc;
}

.nav-dd-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 10px;
}

.nav-dd-item__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(37, 99, 235, 0.07);
  color: var(--color-primary);
  margin-top: 1px;
}

.nav-dd-item__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.nav-dd-item__title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  color: #0f172a;
}

.nav-dd-item__desc {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.45;
  color: #64748b;
}

@media (max-width: 900px) {
  .nav-dd-panel {
    display: none !important;
  }
}

/* ======================================================
   MOBİL ACCORDION — Özellikler alt menüsü
   ====================================================== */

.nav-mobile__group-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 52px;
  padding: 0.65rem 0;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #111827;
  font-family: var(--font-sans);
  text-align: left;
}

.nav-mobile__group-btn:hover {
  color: var(--color-primary);
}

.nav-mobile__group-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-mobile__group-chev {
  flex-shrink: 0;
  color: #9ca3af;
  transition: transform 0.2s ease;
}

.nav-mobile__group-btn[aria-expanded="true"] .nav-mobile__group-chev {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.nav-mobile__sub[hidden] {
  display: none !important;
}

.nav-mobile__sub {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.25rem 0 0.75rem 0.5rem;
}

.nav-mobile__sub-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: #374151;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-mobile__sub-link:hover {
  background: #f1f5f9;
  color: var(--color-primary);
}

.nav-mobile__sub-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
}

/* Blog, Akademi, Fiyatlar — aynı sabit üst çubuk (logo + nav pill + CTA) */
body.blog-page,
body.pricing-page,
body.akademi-page {
  --page-header-offset: calc(env(safe-area-inset-top, 0px) + 4.125rem);
}

html:has(body.blog-page),
html:has(body.pricing-page),
html:has(body.akademi-page) {
  scroll-padding-top: var(--page-header-offset);
}

body.blog-page .header,
body.pricing-page .header,
body.akademi-page .header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: #f1f5f9;
  border-bottom: 1px solid rgba(15, 23, 42, 0.07);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset;
}

@media (max-width: 900px) {
  body.blog-page .header,
  body.pricing-page .header,
  body.akademi-page .header {
    background: #f1f5f9;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

body.blog-page > main,
body.pricing-page > main,
body.akademi-page > main {
  padding-top: 0;
}