/* ==========================================================================
   HEADER & BÖLÜMLER OVERLAY PANELİ
   ========================================================================== */

/* --------------------------------------------------------------------------
   Sabit Header (Fixed)
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height-desktop);
  background-color: rgba(245, 245, 245, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  z-index: var(--z-header);
  transform: none;
  display: flex;
  align-items: center;
}

.header-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Sol Logo Alanı */
.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
}

.header-logo-icon {
  width: 22px;
  height: 27px;
  flex-shrink: 0;
}

.header-logo-icon svg {
  width: 100%;
  height: 100%;
  fill: var(--color-primary);
}

.header-brand-name {
  font-family: var(--font-family);
  font-size: 24px;
  font-weight: 500;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

/* Sağ Menü / Butonlar */
.header-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.2;
}

/* İletişim Butonu (Outline) */
.header-btn-contact {
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  background-color: transparent;
}

.header-btn-contact:hover {
  background-color: var(--color-primary);
  color: #ffffff;
}

/* Bölümler Butonu (Dolu Mavi) */
.header-btn-menu {
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 51, 255, 0.2);
}

.header-btn-menu:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.header-btn-menu .star-icon {
  font-size: 14px;
  line-height: 1;
}

@media (max-width: 809px) {
  .site-header {
    height: var(--header-height-mobile);
  }

  .header-container {
    padding: 0 20px;
  }

  .header-btn-contact {
    display: none;
  }

  .header-btn-menu {
    padding: 7px 16px;
    font-size: 14px;
  }
}

/* --------------------------------------------------------------------------
   Bölümler Paneli (Fullscreen Overlay)
   -------------------------------------------------------------------------- */
.sections-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background-color: var(--bg-page);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

.sections-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

/* Arka Plan Sanatsal Gradient Görselleri (Masaüstü Yatay / Mobil Dikey) */
.overlay-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  background-color: var(--bg-page);
  background-image: url('../images/Portfolio_icindekiler_arkaplan_yatay.webp');
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

@media (max-width: 809px) {
  .overlay-background {
    background-image: url('../images/Portfolio_icindekiler_arkaplan_dikey.webp');
  }
}

/* Overlay İçerik Düzeni */
.overlay-header {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 24px 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.overlay-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(255, 255, 255, 0.6);
  color: var(--color-text-main);
  font-size: 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.overlay-close-btn:hover {
  background-color: #ffffff;
  color: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.overlay-close-btn:focus-visible {
  outline: 2px solid var(--color-primary);
}

.overlay-body {
  position: relative;
  z-index: 2;
  flex: 1;
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 16px 24px 32px;
  display: flex;
  align-items: center;
  justify-content: center; /* Masaüstünde sayfa merkezine ortala */
}

/* 12 Pill Menü Listesi (En geniş başlığa göre sola hizalı, blok olarak ortalanmış) */
.sections-list {
  display: flex;
  flex-direction: column;
  align-items: flex-start; /* En geniş başlığın sol hizasına göre sola yasla */
  gap: 11px;
  width: fit-content;      /* Genişliği en geniş başlık belirler */
  max-width: 100%;
  list-style: none;
  margin: 0 auto;          /* Bloğu ekranda yatayda merkezler */
  padding: 0;
}

.sections-list li {
  width: fit-content;
  display: flex;
}

.section-pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start; /* İçeriği sola yasla */
  gap: 12px;
  padding: 10px 26px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-dark);
  background-color: rgba(245, 245, 245, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-main);
  transition: all var(--transition-fast);
  transform-origin: left center;
  width: fit-content;
  min-width: 0;
  max-width: 100%;
}

.section-pill-num {
  font-family: var(--font-family-number, 'Archivo', sans-serif);
  font-weight: 600; /* Archivo Semi-Bold */
  color: var(--color-primary);
  transition: color var(--transition-fast);
  display: inline-block;
  min-width: 22px;
  text-align: left;
  font-variant-numeric: tabular-nums;
}

.section-pill-name {
  color: var(--color-text-main);
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.section-pill-link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 51, 255, 0.28);
}

.section-pill-link:hover .section-pill-num,
.section-pill-link:hover .section-pill-name {
  color: #ffffff;
}

/* Scroll-Spy ile Aktif Bölüm */
.section-pill-link.is-active {
  background-color: rgba(0, 51, 255, 0.12);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.section-pill-link.is-active .section-pill-num {
  font-weight: 600;
}

/* Overlay Altı Sosyal Linkler (Merkeze Ortalanmış) */
.overlay-footer {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 24px 36px 36px;
  display: flex;
  align-items: center;
  justify-content: center; /* Masaüstünde sayfa merkezine ortala */
  gap: 20px;
}

.overlay-social-links {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  color: var(--color-text-muted);
}

.overlay-social-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.overlay-social-link:hover {
  color: var(--color-primary);
}

.overlay-social-separator {
  color: var(--color-border-subtle);
  user-select: none;
}

@media (max-width: 809px) {
  .overlay-header {
    padding: 16px 20px;
  }

  .overlay-body {
    padding: 12px 20px 24px;
    justify-content: center;
  }

  .sections-list {
    align-items: flex-start;
    width: fit-content;
    margin: 0 auto;
    gap: 9px;
  }

  .sections-list li {
    width: fit-content;
    display: flex;
  }

  .section-pill-link {
    width: fit-content;
    max-width: 100%;
    min-width: 0;
    justify-content: flex-start;
    padding: 8px 18px;
    font-size: 14.5px;
    gap: 10px;
  }

  .section-pill-link:hover {
    transform: none;
  }

  .overlay-footer {
    padding: 20px;
    justify-content: center;
  }
}