/* ==========================================================================
   BEYOĞLU TEKNOLOJİ — HOMEPAGE v3 (Shop-Inspired)
   Clean canvas · Product-first · Breathing room · Soft elevation
   Namespace: .bt-home-*, .bt-hero-*, .bt-cat-*, .bt-trust-*, .bt-edonusum-*
   ========================================================================== */

/* ── 1. SECTION SYSTEM ──────────────────────────────────────────────────── */
.bt-home-section {
  padding: 4rem 0;
  position: relative;
}

@media (max-width: 768px) {
  .bt-home-section { padding: 2.5rem 0; }
}

.bt-home-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.bt-home-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--bt-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

/* Legacy alias */
.bt-home-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--bt-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.bt-home-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--bt-text);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

@media (max-width: 768px) {
  .bt-home-title { font-size: 1.375rem; }
}

.bt-home-subtitle {
  font-size: var(--bt-text-sm);
  color: var(--bt-muted);
  margin: 0.35rem 0 0 0;
  line-height: 1.5;
}

.bt-home-view-all {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--bt-text-sm);
  font-weight: 600;
  color: var(--bt-text-secondary);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--bt-transition-fast);
}
.bt-home-view-all:hover { color: var(--bt-primary); }
.bt-home-view-all::after {
  content: '→';
  font-size: 0.9em;
}

/* ── 2. HERO SLIDER ──────────────────────────────────────────────────────── */
.bt-hero-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1899 / 828;
  height: auto;
  border-radius: var(--bt-hero-radius, 0px) !important;
  overflow: hidden;
  background: #0a0e1a;
}

@media (max-width: 1024px) {
  .bt-hero-wrapper {
    aspect-ratio: 1899 / 828;
    height: auto;
    border-radius: var(--bt-hero-radius, 0px) !important;
  }
}
@media (max-width: 768px) {
  .bt-hero-wrapper {
    aspect-ratio: 1899 / 828;
    min-height: 200px;
    height: auto;
    border-radius: var(--bt-hero-radius, 0px) !important;
  }
}
@media (max-width: 480px) {
  .bt-hero-wrapper {
    aspect-ratio: 1899 / 828;
    min-height: 160px;
    height: auto;
    border-radius: var(--bt-hero-radius, 0px) !important;
  }
}

.bt-hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.55s ease, visibility 0.55s ease;
  display: flex;
  align-items: center;
  border-radius: var(--bt-hero-radius, 0px) !important;
}

.bt-hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.bt-hero-picture {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0a0e1a;
  border-radius: var(--bt-hero-radius, 0px) !important;
  overflow: hidden;
}

.bt-hero-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: var(--bt-hero-radius, 0px) !important;
}

/* Overlays */
.bt-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  border-radius: var(--bt-hero-radius, 0px) !important;
}
.bt-hero-overlay-none   { display: none !important; }
.bt-hero-overlay-light  { background: linear-gradient(100deg, rgba(10,14,26,.78) 0%, rgba(10,14,26,.4) 55%, transparent 100%); }
.bt-hero-overlay-medium { background: linear-gradient(100deg, rgba(10,14,26,.92) 0%, rgba(10,14,26,.58) 55%, rgba(10,14,26,.12) 100%); }
.bt-hero-overlay-strong { background: linear-gradient(100deg, rgba(10,14,26,.97) 0%, rgba(10,14,26,.75) 55%, rgba(10,14,26,.3) 100%); }

.bt-hero-content {
  position: relative;
  z-index: 3;
  max-width: 580px;
  padding: 0 3rem;
  color: #ffffff;
}

@media (max-width: 768px) { .bt-hero-content { padding: 0 1.25rem; } }

/* Hero badge / eyebrow */
.bt-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--bt-radius-pill);
  margin-bottom: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero title */
.bt-hero-title {
  font-size: 2.375rem;
  font-weight: 800;
  line-height: 1.12;
  color: #ffffff;
  margin: 0 0 0.875rem 0;
  letter-spacing: -0.035em;
}

.bt-hero-title span {
  color: #fca5a5;
}

@media (max-width: 768px) { .bt-hero-title { font-size: 1.625rem; } }

/* Hero description */
.bt-hero-desc {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.55;
  margin: 0 0 1.5rem 0;
  max-width: 440px;
}

@media (max-width: 768px) { .bt-hero-desc { font-size: 0.875rem; } }

/* Hero CTA group */
.bt-hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.bt-hero-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1.5rem;
  background: var(--bt-primary);
  color: #ffffff;
  border-radius: var(--bt-radius-md);
  font-size: var(--bt-text-base);
  font-weight: 700;
  text-decoration: none;
  border: 2px solid var(--bt-primary);
  transition: all var(--bt-transition-fast);
  letter-spacing: -0.01em;
}
.bt-hero-btn-primary:hover {
  background: var(--bt-primary-hover);
  border-color: var(--bt-primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.bt-hero-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1.5rem;
  background: rgba(255,255,255,0.12);
  color: #ffffff;
  border-radius: var(--bt-radius-md);
  font-size: var(--bt-text-base);
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(6px);
  transition: all var(--bt-transition-fast);
  letter-spacing: -0.01em;
}
.bt-hero-btn-secondary:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.5);
  color: #ffffff;
}

/* Slider arrows */
.bt-hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 4;
  width: 40px;
  height: 40px;
  border-radius: var(--bt-radius-pill);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border: none;
  color: var(--bt-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--bt-shadow-md);
  transition: all var(--bt-transition-fast);
  opacity: 0;
}
.bt-hero-wrapper:hover .bt-hero-arrow { opacity: 1; }
.bt-hero-arrow:hover { background: #ffffff; transform: translateY(-50%) scale(1.08); }
.bt-hero-arrow.prev { left: 1rem; }
.bt-hero-arrow.next { right: 1rem; }

/* Dots */
.bt-hero-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 4;
}

.bt-hero-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--bt-radius-pill);
  background: rgba(255,255,255,0.45);
  cursor: pointer;
  transition: all 0.25s ease;
}
.bt-hero-dot.active {
  width: 20px;
  background: #ffffff;
}

/* ── 3. TRUST STRIP ──────────────────────────────────────────────────────── */
.bt-trust-strip {
  margin-top: 1.25rem;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.bt-trust-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) { .bt-trust-grid-4 { grid-template-columns: repeat(2, 1fr); gap: 1rem 2rem; } }
@media (max-width: 480px) { .bt-trust-grid-4 { grid-template-columns: 1fr 1fr; gap: 0.875rem; } }

.bt-trust-col {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.bt-trust-icon-box {
  width: 38px;
  height: 38px;
  background: var(--bt-primary-light);
  border-radius: var(--bt-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bt-primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.bt-trust-icon-box svg { width: 18px; height: 18px; }

.bt-trust-title {
  font-size: var(--bt-text-sm);
  font-weight: 600;
  color: var(--bt-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.bt-trust-desc {
  font-size: var(--bt-text-xs);
  color: var(--bt-muted);
  margin-top: 2px;
}

/* ── 4. CATEGORY GRID — Image-first ─────────────────────────────────────── */
.bt-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--bt-space-4);
}

@media (max-width: 1024px) { .bt-cat-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .bt-cat-grid { grid-template-columns: repeat(2, 1fr); gap: var(--bt-space-3); } }
@media (max-width: 400px)  { .bt-cat-grid { gap: var(--bt-space-2); } }

.bt-cat-card {
  display: flex;
  flex-direction: column;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--bt-text);
  transition: transform var(--bt-transition-base),
              box-shadow var(--bt-transition-base),
              border-color var(--bt-transition-base);
  box-shadow: var(--bt-shadow-card);
  min-height: 160px;
}

.bt-cat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--bt-shadow-card-hover);
  border-color: var(--bt-border-strong);
}

.bt-cat-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.875rem;
}

.bt-cat-icon {
  width: 40px;
  height: 40px;
  background: var(--bt-canvas);
  border-radius: var(--bt-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bt-primary);
  flex-shrink: 0;
}
.bt-cat-icon svg { width: 20px; height: 20px; }

.bt-cat-count-badge {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--bt-muted);
  background: var(--bt-canvas);
  border: 1px solid var(--bt-border);
  padding: 2px 7px;
  border-radius: var(--bt-radius-pill);
}

.bt-cat-body { flex: 1; }

.bt-cat-name {
  font-size: var(--bt-text-base);
  font-weight: 700;
  color: var(--bt-text);
  margin: 0 0 0.35rem 0;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.bt-cat-highlights {
  font-size: var(--bt-text-xs);
  color: var(--bt-muted);
  margin: 0;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bt-cat-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.875rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bt-border-light);
  font-size: var(--bt-text-xs);
  font-weight: 600;
  color: var(--bt-muted);
}

.bt-cat-arrow-btn {
  width: 22px;
  height: 22px;
  background: var(--bt-canvas);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bt-text-secondary);
  transition: all var(--bt-transition-fast);
}
.bt-cat-card:hover .bt-cat-arrow-btn {
  background: var(--bt-primary);
  border-color: var(--bt-primary);
  color: #ffffff;
}

/* ── 5. CAMPAIGN BANNER ──────────────────────────────────────────────────── */
.bt-campaign-banner {
  background: var(--bt-dark-2);
  border-radius: var(--bt-radius-xl);
  overflow: hidden;
  position: relative;
  min-height: 220px;
}

.bt-campaign-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem 3rem;
}

@media (max-width: 768px) {
  .bt-campaign-grid {
    grid-template-columns: 1fr;
    padding: 1.75rem 1.5rem;
  }
}

.bt-campaign-text { position: relative; z-index: 2; }

.bt-campaign-media {
  position: relative;
  z-index: 2;
}
.bt-campaign-media img {
  max-height: 200px;
  width: auto;
  object-fit: contain;
  border-radius: var(--bt-radius-md);
}

/* ── 6. E-DÖNÜŞÜM CARDS ─────────────────────────────────────────────────── */
.bt-edonusum-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--bt-space-4);
}

@media (max-width: 1024px) { .bt-edonusum-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .bt-edonusum-grid { grid-template-columns: 1fr; } }

.bt-edonusum-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--bt-shadow-card);
  transition: transform var(--bt-transition-base), box-shadow var(--bt-transition-base);
}
.bt-edonusum-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--bt-shadow-card-hover);
}

.bt-edonusum-icon {
  width: 44px;
  height: 44px;
  background: var(--bt-primary-light);
  border-radius: var(--bt-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bt-primary);
  margin-bottom: 0.875rem;
}

.bt-edonusum-card-title {
  font-size: var(--bt-text-base);
  font-weight: 800;
  color: var(--bt-text);
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.02em;
}

.bt-edonusum-card-desc {
  font-size: var(--bt-text-sm);
  color: var(--bt-muted);
  line-height: 1.5;
  margin: 0 0 1rem 0;
}

.bt-edonusum-features {
  list-style: none;
  margin: 0 0 1.25rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.bt-edonusum-features li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--bt-text-xs);
  color: var(--bt-text-secondary);
  font-weight: 500;
}

.bt-edonusum-features li svg {
  color: var(--bt-success);
  flex-shrink: 0;
}

.bt-edonusum-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--bt-text-sm);
  font-weight: 700;
  color: var(--bt-primary);
  text-decoration: none;
  transition: gap var(--bt-transition-fast);
  letter-spacing: -0.01em;
}
.bt-edonusum-btn:hover { gap: 8px; }

/* ── 7. BLOG CARDS ────────────────────────────────────────────────────────── */
.bt-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--bt-space-4);
}

@media (max-width: 900px) { .bt-blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .bt-blog-grid { grid-template-columns: 1fr; } }

.bt-blog-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--bt-shadow-card);
  transition: transform var(--bt-transition-base), box-shadow var(--bt-transition-base);
}
.bt-blog-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--bt-shadow-card-hover);
}

.bt-blog-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--bt-text-xs);
  color: var(--bt-muted);
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.bt-blog-pill {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 2px 8px;
  background: var(--bt-primary-light);
  color: var(--bt-primary);
  border-radius: var(--bt-radius-pill);
}

.bt-blog-title {
  font-size: var(--bt-text-base);
  font-weight: 700;
  color: var(--bt-text);
  margin: 0 0 1rem 0;
  line-height: 1.4;
  letter-spacing: -0.02em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.bt-blog-title a { color: inherit; text-decoration: none; }
.bt-blog-title a:hover { color: var(--bt-primary); }

.bt-blog-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--bt-text-sm);
  font-weight: 700;
  color: var(--bt-primary);
  text-decoration: none;
  transition: gap var(--bt-transition-fast);
}
.bt-blog-link:hover { gap: 9px; }

/* ── 8. NEWSLETTER ───────────────────────────────────────────────────────── */
.bt-newsletter-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  background: var(--bt-canvas);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-xl);
  padding: 2rem 2.5rem;
}

@media (max-width: 768px) {
  .bt-newsletter-box {
    grid-template-columns: 1fr;
    padding: 1.5rem;
    gap: 1rem;
  }
}

.bt-newsletter-form {
  display: flex;
  gap: 0.5rem;
  min-width: 320px;
}
@media (max-width: 480px) { .bt-newsletter-form { min-width: 0; flex-direction: column; } }

.bt-newsletter-input {
  flex: 1;
  height: 46px;
  background: var(--bt-surface);
  border: 1.5px solid var(--bt-border);
  border-radius: var(--bt-radius-pill);
  padding: 0 1.1rem;
  font-size: var(--bt-text-base);
  font-family: var(--bt-font-sans);
  color: var(--bt-text);
  outline: none;
  transition: border-color var(--bt-transition-fast);
}
.bt-newsletter-input:focus { border-color: var(--bt-primary); }
.bt-newsletter-input::placeholder { color: var(--bt-faint); }

.bt-newsletter-btn {
  height: 46px;
  padding: 0 1.25rem;
  background: var(--bt-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--bt-radius-pill);
  font-size: var(--bt-text-sm);
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--bt-transition-fast);
  font-family: var(--bt-font-sans);
}
.bt-newsletter-btn:hover { background: var(--bt-primary-hover); }

/* ── 9. BRANDS ROW ───────────────────────────────────────────────────────── */
.bt-brands-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.75rem;
}

.bt-brand-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 0.875rem 0.5rem;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-md);
  text-decoration: none;
  transition: all var(--bt-transition-fast);
}
.bt-brand-chip:hover {
  border-color: var(--bt-primary);
  background: var(--bt-primary-light);
  transform: translateY(-2px);
}

.bt-brand-name {
  font-size: var(--bt-text-sm);
  font-weight: 700;
  color: var(--bt-text);
  text-align: center;
  line-height: 1.2;
}

.bt-brand-count {
  font-size: var(--bt-text-xs);
  color: var(--bt-muted);
}

/* ── 10. SURFACE ALTERNATION for sections ────────────────────────────────── */
/* White sections on canvas bg, no stacked gradient noise */
.bt-section-white { background: var(--bt-surface); }
.bt-section-canvas { background: var(--bt-canvas); }