/* ==========================================================================
   LAYOUT
   Sayfa iskeletleri: header, hero, bento araç ızgarası, çalışma alanı
   (galeri + ayarlar), bottom sheet, yasal sayfalar ve footer.
   ========================================================================== */

.main-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.hidden {
  display: none !important;
}

/* --------------------------------------------------------------------
   1. HEADER
   -------------------------------------------------------------------- */

.app-header {
  height: var(--header-height);
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

@media (min-width: 768px) {
  .app-header {
    padding: 0 2rem;
  }
}

.logo {
  font-size: 1.3rem;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo b {
  color: var(--color-brand);
}

.site-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

/* --------------------------------------------------------------------
   2. UPLOAD / HERO EKRANI (Araç sayfaları)
   -------------------------------------------------------------------- */

.upload-view {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
}

.hero-content {
  text-align: center;
  max-width: 580px;
  width: 100%;
}

.hero-content h1 {
  font-size: clamp(1.5rem, 4.5vw, 2.2rem);
  margin-bottom: 0.75rem;
}

.hero-content p {
  margin-bottom: 1.75rem;
  font-size: clamp(0.9rem, 2.5vw, 1.05rem);
}

.dropzone {
  background: var(--color-bg-surface);
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  cursor: pointer;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

@media (min-width: 600px) {
  .dropzone {
    padding: 3.5rem 2rem;
  }
}

.dropzone.is-dragover {
  border-color: var(--color-brand);
  background-color: var(--color-brand-soft);
}

.drop-text {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------
   3. ANA SAYFA — BENTO GRID HERO
   -------------------------------------------------------------------- */

.home-hero {
  padding: 2.5rem 1rem;
  max-width: var(--container-max);
  margin: 0 auto;
  width: 100%;
}

@media (min-width: 768px) {
  .home-hero {
    padding: 4rem 2rem;
  }
}

.home-hero-content {
  text-align: center;
  margin-bottom: 2.5rem;
}

.home-hero-content h1 {
  font-size: clamp(1.7rem, 5vw, 2.75rem);
  margin-bottom: 0.75rem;
}

.home-hero-content p {
  font-size: clamp(0.9rem, 2.5vw, 1.15rem);
  max-width: 620px;
  margin: 0 auto;
}

/* Bento ızgarası: masaüstünde eşit olmayan, öne çıkan hücreler */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(200px, 1fr);
    grid-auto-flow: dense;
    gap: 1.75rem;
  }

  /* Öne çıkan araç: 2×2'lik büyük bento hücresi (en çok kullanılan araç) */
  .tool-card--feature {
    grid-column: span 2;
    grid-row: span 2;
  }

  /* İkincil araç: tek satır ama iki sütun genişliğinde */
  .tool-card--wide {
    grid-column: span 2;
  }
}

.tool-card {
  background: var(--color-bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  position: relative;
  color: inherit;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

@media (min-width: 768px) {
  .tool-card {
    padding: 2rem 1.75rem;
  }
}

.tool-card.is-active:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
}

.tool-card.is-active:active {
  transform: scale(0.99);
}

.tool-card.is-disabled {
  opacity: 0.7;
  background-color: var(--slate-50);
  cursor: default;
}

/* Öne çıkan bento hücresi: koyu lacivert marka gradyanı */
.tool-card--feature {
  background: var(--gradient-brand);
  background-image: var(--gradient-feature), var(--gradient-brand);
  border-color: transparent;
  color: var(--color-text-inverse);
}

.tool-card--feature .tool-icon-box {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
}

.tool-card--feature .tool-info h3 {
  color: #ffffff;
}

.tool-card--feature .tool-info p {
  color: var(--color-text-inverse-muted);
}

.tool-card--feature .tool-action {
  color: #ffffff;
}

.tool-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.tool-icon-box.icon-brand   { background: var(--color-brand-soft); color: var(--color-brand); }
.tool-icon-box.icon-accent  { background: var(--color-accent-soft); color: var(--emerald-600); }
.tool-icon-box.icon-violet  { background: var(--violet-100); color: var(--violet-600); }
.tool-icon-box.icon-neutral { background: var(--slate-100); color: var(--slate-500); }

.tool-info h3 {
  font-size: 1.05rem;
  font-weight: var(--fw-bold);
  margin-bottom: 0.4rem;
}

.tool-info p {
  font-size: 0.85rem;
  line-height: var(--lh-relaxed);
  margin-bottom: 1.25rem;
}

.tool-action {
  margin-top: auto;
  font-size: 0.9rem;
  font-weight: var(--fw-bold);
  color: var(--color-brand);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast);
}

.tool-card.is-active:hover .tool-action {
  gap: 0.6rem;
}

.tool-action.is-disabled-text {
  color: var(--color-text-muted);
  font-weight: var(--fw-semibold);
  font-size: 0.8rem;
}

/* --------------------------------------------------------------------
   4. ÇALIŞMA ALANI (Galeri + Ayarlar bölünmüş yerleşim)
   -------------------------------------------------------------------- */

.workspace-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--header-height));
  height: calc(100dvh - var(--header-height));
  overflow: hidden;
}

@media (min-width: 900px) {
  .workspace-view {
    flex-direction: row;
  }
}

.gallery-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 900px) {
  .gallery-section {
    padding: 1.5rem 2rem;
  }
}

.gallery-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.sort-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
}

/* Sürüklenebilir kart ızgarası. Mobil-öncelikli: <768px'de her zaman tek
   sütun (liste görünümü) — kartlar yan yana olduğunda parmak dikey kaydırma
   ile sürükleme hareketini karıştırıyordu (touch conflict). Çoklu sütunlu
   "kart" ızgarası yalnızca >=768px'de, fare/trackpad ile etkileşimin normal
   olduğu genişliklerde devreye girer. */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  align-items: stretch;
}

@media (min-width: 768px) {
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.25rem;
    align-items: start;
  }

  .cards-grid.mode-landscape {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }

  .cards-grid.mode-portrait .media-card {
    aspect-ratio: 210 / 297;
  }

  .cards-grid.mode-landscape .media-card {
    aspect-ratio: 297 / 210;
  }

  .cards-grid.margin-none  .media-card-preview { padding: 4px; }
  .cards-grid.margin-small .media-card-preview { padding: 10px; }
  .cards-grid.margin-big   .media-card-preview { padding: 18px; }
}

@media (min-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 1.75rem;
  }
}

/* --------------------------------------------------------------------
   5. SIDEBAR (Masaüstü) / BOTTOM SHEET (Mobil)
   -------------------------------------------------------------------- */

.sidebar {
  width: 100%;
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.sidebar-settings {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: var(--fw-extrabold);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-label {
  display: block;
  font-size: 0.8rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
}

.sidebar-actions {
  margin-top: auto;
  padding-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* Mobilde ayarları açan buton ve bottom sheet başlığı: masaüstünde gizli */
.settings-header-mobile,
.btn-settings-toggle,
.sheet-drag-handle {
  display: none;
}

.settings-backdrop {
  display: none;
}

@media (min-width: 900px) {
  .sidebar {
    width: var(--sidebar-width);
    border-top: none;
    border-left: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1.25rem;
  }
}

@media (max-width: 899px) {
  /* Ekranda sabit kalan alt aksiyon çubuğu */
  .sidebar {
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom));
    background: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.08);
    z-index: var(--z-sticky);
    gap: 0;
  }

  .sidebar-actions {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem;
    width: 100%;
    margin-top: 0;
    padding-top: 0;
  }

  .sidebar-actions .btn-outline {
    grid-column: span 2;
  }

  .btn-settings-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background: var(--slate-100);
    color: var(--color-text-primary);
    border: 1.5px solid var(--color-border);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: var(--fw-bold);
    cursor: pointer;
    min-height: 46px;
    touch-action: manipulation;
  }

  .btn-settings-toggle:active {
    background: var(--slate-200);
  }

  /* Bottom Sheet: mobilde ayarlar çekmecesi */
  .sidebar-settings {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg-surface);
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
    box-shadow: 0 -12px 32px rgba(15, 23, 42, 0.22);
    padding: 0.75rem 1.25rem calc(2rem + env(safe-area-inset-bottom));
    max-height: 80vh;
    max-height: 80dvh;
    overflow-y: auto;
    z-index: var(--z-sheet);
    display: none;
    flex-direction: column;
    gap: 1.25rem;
    animation: slideUpSheet var(--transition-slow);
  }

  .sidebar-settings.is-open {
    display: flex;
  }

  .sheet-drag-handle {
    display: block;
    width: 40px;
    height: 4px;
    border-radius: var(--radius-full);
    background: var(--color-border-strong);
    margin: 0.5rem auto 0.25rem;
    flex-shrink: 0;
  }

  .settings-header-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.75rem;
  }

  .settings-backdrop {
    position: fixed;
    inset: 0;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(2px);
    z-index: var(--z-backdrop);
    display: none;
  }

  .settings-backdrop.is-open {
    display: block;
  }
}

@keyframes slideUpSheet {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

/* --------------------------------------------------------------------
   6. YASAL SAYFALAR
   -------------------------------------------------------------------- */

.legal-container {
  max-width: var(--container-narrow);
  margin: 2rem auto;
  background: var(--color-bg-surface);
  padding: 1.75rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  width: calc(100% - 2rem);
}

@media (min-width: 768px) {
  .legal-container {
    padding: 2.5rem 2rem;
    width: 100%;
  }
}

.legal-container h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.legal-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.6rem;
}

.legal-container section {
  margin-bottom: 1.5rem;
}

.legal-container h2 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.legal-container p {
  font-size: 0.9rem;
  color: var(--slate-700);
  margin-bottom: 0.65rem;
}

.legal-container ul {
  list-style-type: disc;
  padding-left: 1.25rem;
  margin-bottom: 0.65rem;
}

.legal-container li {
  font-size: 0.9rem;
  color: var(--slate-700);
  line-height: var(--lh-relaxed);
  margin-bottom: 0.35rem;
}

/* --------------------------------------------------------------------
   7. FOOTER
   -------------------------------------------------------------------- */

.app-footer {
  text-align: center;
  padding: 1.25rem 1rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  margin-top: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 0.4rem;
}

.footer-links a {
  color: var(--color-text-primary);
  font-weight: var(--fw-semibold);
}

.footer-links a:hover {
  color: var(--color-brand);
  text-decoration: underline;
}