/* ==========================================================================
   DENTALINS — HAKKIMIZDA SAYFASI (about.css)
   Hakkımızda sayfasına özgü bileşenler.
   Tasarım dili ana sayfa ile tutarlı; aynı değişkenler, spacing ve renkler.
   BEM: .about-*
   ========================================================================== */


/* ======================================================================
   1. ABOUT STORY — Klinik Hikayesi
   Sol: görsel + aksan katman | Sağ: metin, özellikler, CTA
   ====================================================================== */

.about-story {
  padding: var(--space-16) 0;
  background-color: var(--color-neutral-0);
  /* page-header deco logosunun üstüne çıkar */
  position: relative;
  z-index: 1;
}

.about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-story__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-16);
  }
}

/* Görsel tarafı */
.about-story__visual {
  position: relative;
}

.about-story__img-wrap {
  position: relative;
  z-index: 1;
}

.about-story__img {
  display: block;
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center 20%;
  border-radius: var(--radius-xl);
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.12),
    0 0 0 1px rgba(5, 160, 214, 0.08);
}

/* Offset dekoratif çerçeve */
.about-story__img-wrap::before {
  content: '';
  position: absolute;
  top: -14px;
  left: -14px;
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-xl) + 4px);
  border: 2px solid rgba(5, 160, 214, 0.15);
  z-index: -1;
  pointer-events: none;
}

.about-story__img-wrap::after {
  content: '';
  position: absolute;
  top: -28px;
  left: -28px;
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-xl) + 8px);
  border: 1px solid rgba(5, 160, 214, 0.07);
  z-index: -2;
  pointer-events: none;
}

/* Kuruluş yılı badge */
.about-story__badge {
  position: absolute;
  bottom: -20px;
  right: -16px;
  background: linear-gradient(135deg, var(--color-secondary-500) 0%, var(--color-secondary-700) 100%);
  border: 1px solid rgba(5, 160, 214, 0.20);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.20);
  z-index: 2;
}

.about-story__badge-year {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-neutral-0);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}

.about-story__badge-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-primary-400);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  white-space: nowrap;
}

/* Metin tarafı */
.about-story__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-story__lead {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-secondary-500);
  line-height: var(--leading-relaxed);
  border-left: 3px solid var(--color-primary-500);
  padding-left: var(--space-5);
}

.about-story__body {
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  font-size: var(--text-base);
}

.about-story__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.about-story__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.about-story__feature-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background-color: rgba(5, 160, 214, 0.10);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-500);
  margin-top: 2px;
}

.about-story__feature-icon svg {
  width: 12px;
  height: 12px;
}

.about-story__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

/* Mobil görsel altura */
@media (max-width: 1023px) {
  .about-story__img {
    height: 360px;
  }

  .about-story__badge {
    bottom: -16px;
    right: 12px;
  }
}

@media (max-width: 479px) {
  .about-story {
    padding: var(--space-12) 0;
  }

  .about-story__img {
    height: 280px;
  }

  .about-story__badge {
    bottom: -14px;
    right: 8px;
    padding: var(--space-3) var(--space-4);
  }

  .about-story__badge-year {
    font-size: var(--text-2xl);
  }
}


/* ======================================================================
   2. ABOUT VALUES — Misyon / Vizyon / Felsefe
   Koyu navy arka plan, 3 kart grid
   ====================================================================== */

.about-values {
  padding: var(--space-16) 0;
  background: linear-gradient(155deg, var(--color-secondary-500) 0%, #060f1e 100%);
  position: relative;
  overflow: hidden;
}

/* Dekoratif arka plan ışıması */
.about-values::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(5, 160, 214, 0.07) 0%, transparent 65%);
  pointer-events: none;
}

.about-values__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

@media (min-width: 640px) {
  .about-values__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-values__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.about-value-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-7);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.about-value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-700));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.about-value-card:hover {
  border-color: rgba(5, 160, 214, 0.25);
  transform: translateY(-3px);
}

.about-value-card:hover::before {
  opacity: 1;
}

.about-value-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: rgba(5, 160, 214, 0.10);
  border: 1px solid rgba(5, 160, 214, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-400);
  margin-bottom: var(--space-5);
  flex-shrink: 0;
}

.about-value-card__tag {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-primary-400);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  margin-bottom: var(--space-2);
}

.about-value-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-neutral-0);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-3);
}

.about-value-card__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  line-height: var(--leading-relaxed);
}

@media (max-width: 479px) {
  .about-values {
    padding: var(--space-12) 0;
  }

  .about-values__grid {
    margin-top: var(--space-8);
  }

  .about-value-card {
    padding: var(--space-6) var(--space-5);
  }
}


/* ======================================================================
   3. ABOUT FEATURES — Neden Biz?
   Sol: büyük başlık + metin | Sağ: 2x2 özellik ızgarası
   ====================================================================== */

.about-features {
  padding: var(--space-16) 0;
  background-color: var(--color-neutral-50);
}

.about-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .about-features__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--space-16);
  }
}

.about-features__intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.about-features__intro-body {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

.about-features__items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

@media (max-width: 479px) {
  .about-features__items {
    grid-template-columns: 1fr;
  }
}

.about-feature-item {
  background: var(--color-neutral-0);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-5);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.about-feature-item:hover {
  border-color: rgba(5, 160, 214, 0.30);
  box-shadow: 0 8px 24px rgba(5, 160, 214, 0.07);
  transform: translateY(-2px);
}

.about-feature-item__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: rgba(5, 160, 214, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-500);
  margin-bottom: var(--space-4);
}

.about-feature-item__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-secondary-500);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.about-feature-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

@media (max-width: 479px) {
  .about-features {
    padding: var(--space-12) 0;
  }
}


/* ======================================================================
   4. ABOUT GALLERY — Klinik Fotoğrafları
   Asymmetric CSS Grid: büyük sol + 2x sağ üst-alt
   ====================================================================== */

.about-gallery {
  padding: var(--space-16) 0;
  background-color: var(--color-neutral-0);
}

.about-gallery__grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

@media (min-width: 640px) {
  .about-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-gallery__item--main {
    grid-row: 1 / 3;
  }
}

@media (min-width: 1024px) {
  .about-gallery__grid {
    grid-template-columns: 1.3fr 1fr 1fr;
    grid-template-rows: 260px 260px;
    gap: var(--space-4);
  }

  .about-gallery__item--main {
    grid-row: 1 / 3;
    grid-column: 1;
  }
}

.about-gallery__item {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: var(--color-neutral-100);
}

.about-gallery__item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out-expo);
}

.about-gallery__item--main img {
  height: 340px;
}

.about-gallery__item:not(.about-gallery__item--main) img {
  height: 220px;
}

@media (min-width: 640px) {
  .about-gallery__item--main img {
    height: 100%;
  }

  .about-gallery__item:not(.about-gallery__item--main) img {
    height: 100%;
  }
}

.about-gallery__item:hover img {
  transform: scale(1.04);
}

.about-gallery__item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 19, 40, 0.55) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.about-gallery__item:hover .about-gallery__item-overlay {
  opacity: 1;
}

.about-gallery__item-caption {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-neutral-0);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.about-gallery__item:hover .about-gallery__item-caption {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 479px) {
  .about-gallery {
    padding: var(--space-12) 0;
  }

  .about-gallery__grid {
    margin-top: var(--space-8);
  }
}

/* -- Zoom trigger button -------------------------------------------- */

.about-gallery__item[data-lightbox-src] {
  cursor: zoom-in;
}

.about-gallery__zoom {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(5, 160, 214, 0.82);
  border: 2px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  z-index: 4;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 0 0 0 rgba(5, 160, 214, 0);
  transition:
    opacity 0.28s ease,
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.28s ease;
  pointer-events: none;
}

.about-gallery__item:hover .about-gallery__zoom {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  box-shadow: 0 0 0 8px rgba(5, 160, 214, 0.14), 0 8px 28px rgba(0, 0, 0, 0.32);
  pointer-events: auto;
}

.about-gallery__zoom:hover {
  background: var(--color-primary-500);
  box-shadow: 0 0 0 14px rgba(5, 160, 214, 0.12), 0 12px 36px rgba(0, 0, 0, 0.38);
}

.about-gallery__zoom svg {
  pointer-events: none;
}


/* ======================================================================
   GALLERY LIGHTBOX MODAL
   ====================================================================== */

.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.gallery-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

.gallery-lightbox.is-closing {
  opacity: 0;
  pointer-events: none;
}

.gallery-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 10, 26, 0.93);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

/* Stage */
.gallery-lightbox__stage {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: min(90vw, 1100px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

/* Slide animations */
.gallery-lightbox__stage.slide-out-left  { opacity: 0; transform: translateX(-50px); }
.gallery-lightbox__stage.slide-out-right { opacity: 0; transform: translateX(50px);  }

.gallery-lightbox__stage.slide-in-left  { animation: lbSlideInLeft  0.36s ease forwards; }
.gallery-lightbox__stage.slide-in-right { animation: lbSlideInRight 0.36s ease forwards; }

@keyframes lbSlideInLeft  { from { opacity: 0; transform: translateX(-50px); } to { opacity: 1; transform: none; } }
@keyframes lbSlideInRight { from { opacity: 0; transform: translateX( 50px); } to { opacity: 1; transform: none; } }

/* Image */
.gallery-lightbox__img {
  display: block;
  max-width: 100%;
  max-height: calc(90vh - 70px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-xl);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 24px 80px rgba(0, 0, 0, 0.65);
}

/* Info bar */
.gallery-lightbox__info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: var(--space-4);
  padding: 0 var(--space-1);
}

.gallery-lightbox__caption {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
  font-weight: var(--weight-medium);
  margin: 0;
}

.gallery-lightbox__counter {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.30);
  letter-spacing: 0.05em;
}

/* Close button */
.gallery-lightbox__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 3;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.70);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background var(--transition-fast), color var(--transition-fast), transform 0.2s ease;
}

.gallery-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-neutral-0);
  transform: rotate(90deg);
}

/* Nav buttons */
.gallery-lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.70);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform 0.2s ease;
}

.gallery-lightbox__nav--prev { left: var(--space-4); }
.gallery-lightbox__nav--next { right: var(--space-4); }

.gallery-lightbox__nav:hover {
  background: rgba(5, 160, 214, 0.22);
  border-color: rgba(5, 160, 214, 0.35);
  color: var(--color-neutral-0);
}

.gallery-lightbox__nav--prev:hover { transform: translateY(-50%) translateX(-3px); }
.gallery-lightbox__nav--next:hover { transform: translateY(-50%) translateX( 3px); }

@media (max-width: 639px) {
  .gallery-lightbox__nav { width: 40px; height: 40px; }
  .gallery-lightbox__nav--prev { left: var(--space-2); }
  .gallery-lightbox__nav--next { right: var(--space-2); }
}


/* ======================================================================
   5. ABOUT CERTIFICATIONS — Sertifikalar & Akreditasyonlar
   ====================================================================== */

.about-certs {
  padding: var(--space-14) 0;
  background-color: var(--color-neutral-50);
  border-top: 1px solid var(--color-neutral-200);
  border-bottom: 1px solid var(--color-neutral-200);
}

.about-certs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-10);
}

@media (min-width: 480px) {
  .about-certs__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 640px) {
  .about-certs__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-certs__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.about-cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-4);
  background: var(--color-neutral-0);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.about-cert-item:hover {
  border-color: rgba(5, 160, 214, 0.25);
  box-shadow: 0 4px 16px rgba(5, 160, 214, 0.07);
}

.about-cert-item__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(5, 160, 214, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-500);
  flex-shrink: 0;
}

.about-cert-item__name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-secondary-500);
  line-height: var(--leading-snug);
}

.about-cert-item__desc {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
}

@media (max-width: 479px) {
  .about-certs {
    padding: var(--space-10) 0;
  }

  .about-certs__grid {
    margin-top: var(--space-7);
    gap: var(--space-3);
  }

  .about-cert-item {
    padding: var(--space-5) var(--space-3);
  }
}


/* ======================================================================
   6. ABOUT CTA — Son çağrı aksiyonu
   ====================================================================== */

.about-cta {
  padding: var(--space-16) 0;
  background: linear-gradient(155deg, var(--color-secondary-500) 0%, #060f1e 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.about-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(5, 160, 214, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 160, 214, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Orta parıltı */
.about-cta::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(5, 160, 214, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

.about-cta__inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.about-cta__title {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-neutral-0);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.about-cta__title span {
  background: linear-gradient(135deg, var(--color-primary-300) 0%, var(--color-primary-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-cta__subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.55);
  line-height: var(--leading-relaxed);
}

.about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

@media (max-width: 479px) {
  .about-cta {
    padding: var(--space-12) 0;
  }

  .about-cta__title {
    font-size: var(--text-2xl);
  }

  .about-cta__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .about-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .gallery-lightbox__stage {
    animation: none;
    transition: none;
  }

  .about-story__visual,
  .about-cert-item,
  .about-gallery__item img {
    transition: none;
  }
}