/* =================================================================
   Navarti Brand Page — Collections Layout
   HAMAN Group
   ================================================================= */

#navarti-page {
  --navarti-accent: #C8222C;
  --navarti-dark:   #111111;
  --navarti-gray:   #5a5a5a;
  --navarti-light:  #f5f4f1;
  --navarti-white:  #ffffff;
  --navarti-border: rgba(17, 17, 17, 0.07);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Sections ── */
.navarti-section {
  padding-block: clamp(5rem, 10vw, 8rem);
}

.navarti-section:nth-child(even) {
  background: var(--navarti-light);
}

.navarti-section:nth-child(odd) {
  background: var(--navarti-white);
}

.navarti-section__header {
  max-width: 52rem;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.navarti-section__eyebrow {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--navarti-accent);
  margin-bottom: 1rem;
}

.navarti-section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--navarti-dark);
  margin-bottom: 1rem;
}

.navarti-section__subtitle {
  font-size: clamp(0.9375rem, 1.3vw, 1.0625rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--navarti-gray);
  max-width: 52ch;
}

/* ── Back link ── */
.navarti-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  transition: color 0.3s;
}

.navarti-back:hover {
  color: #fff;
}

.navarti-back__arrow {
  font-size: 1rem;
  line-height: 1;
}

html[dir="rtl"] .navarti-back__arrow {
  transform: scaleX(-1);
  display: inline-block;
}

/* ═════════════════════════════════════════════════════════════
   HERO
   ═════════════════════════════════════════════════════════════ */
.navarti-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  margin-top: var(--header-offset, 80px);
  overflow: hidden;
}

.navarti-hero__image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.navarti-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  min-height: 92vh;
}

.navarti-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.82) 0%,
    rgba(10, 10, 10, 0.28) 50%,
    rgba(10, 10, 10, 0.40) 100%
  );
}

.navarti-hero__content {
  position: relative;
  z-index: 2;
  padding-block: clamp(4rem, 10vw, 7rem);
  color: #fff;
}

.navarti-hero__eyebrow {
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 1.25rem;
}

.navarti-hero__title {
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 200;
  letter-spacing: 0.04em;
  line-height: 1;
  color: #fff;
  margin-bottom: 1rem;
}

.navarti-hero__subtitle {
  font-size: clamp(1.125rem, 2.2vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 1.25rem;
}

.navarti-hero__desc {
  font-size: clamp(0.9375rem, 1.3vw, 1.0625rem);
  font-weight: 300;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.72);
  max-width: 44ch;
  margin-bottom: 2.5rem;
}

.navarti-hero__cta {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  transition: background 0.4s, border-color 0.4s;
}

.navarti-hero__cta:hover {
  background: var(--navarti-accent);
  border-color: var(--navarti-accent);
}

/* ═════════════════════════════════════════════════════════════
   BRAND GALLERY
   ═════════════════════════════════════════════════════════════ */
.navarti-gallery-section {
  background: var(--navarti-white);
}

.navarti-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: clamp(20rem, 34vw, 36rem);
  gap: clamp(0.5rem, 1vw, 1rem);
}

.navarti-gallery-item {
  overflow: hidden;
  background: var(--navarti-light);
}

.navarti-gallery-item--large {
  grid-column: span 2;
}

.navarti-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.9s var(--ease-out);
}

.navarti-gallery-item:hover img {
  transform: scale(1.04);
}

/* ═════════════════════════════════════════════════════════════
   COLLECTIONS INTRO
   ═════════════════════════════════════════════════════════════ */
.navarti-collections-intro {
  background: var(--navarti-light);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.navarti-collections-intro .navarti-section__header {
  margin-bottom: 0;
}

/* ═════════════════════════════════════════════════════════════
   COLLECTION BLOCKS
   ═════════════════════════════════════════════════════════════ */
.navarti-collection {
  padding-block: clamp(4rem, 8vw, 6.5rem);
  background: var(--navarti-white);
  border-top: 1px solid var(--navarti-border);
}

.navarti-collection--alt {
  background: var(--navarti-light);
}

.navarti-collection__header {
  max-width: 48rem;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
  padding-bottom: clamp(1.5rem, 3vw, 2rem);
  border-bottom: 2px solid rgba(200, 34, 44, 0.15);
}

.navarti-collection__index {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--navarti-accent);
  margin-bottom: 0.75rem;
}

.navarti-collection__name {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.03em;
  line-height: 1.1;
  color: var(--navarti-dark);
  margin-bottom: 1rem;
}

.navarti-collection__intro {
  font-size: clamp(0.9375rem, 1.25vw, 1.0625rem);
  font-weight: 300;
  line-height: 1.85;
  color: var(--navarti-gray);
  max-width: 52ch;
}

.navarti-collection__block {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.navarti-collection__block:last-child {
  margin-bottom: 0;
}

.navarti-collection__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.25rem, 2.5vw, 2rem);
  align-items: start;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}

.navarti-collection__row .navarti-collection__block--half {
  margin-bottom: 0;
}

.navarti-collection__row .navarti-wide-image {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navarti-collection__row .navarti-wide-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.navarti-collection__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navarti-dark);
  margin-bottom: clamp(1.25rem, 2.5vw, 1.75rem);
  padding-inline-start: 0.75rem;
  border-inline-start: 2px solid var(--navarti-accent);
}

/* Collection gallery grids */
.navarti-collection-gallery {
  display: grid;
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
}

.navarti-collection-gallery--3 {
  grid-template-columns: repeat(3, 1fr);
}

.navarti-collection-gallery--2 {
  grid-template-columns: repeat(2, 1fr);
}

.navarti-collection-gallery--1 {
  grid-template-columns: 1fr;
}

.navarti-collection-gallery__item {
  margin: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--navarti-border);
  aspect-ratio: 4 / 5;
}

.navarti-collection-gallery__item--wide {
  aspect-ratio: 16 / 10;
}

.navarti-collection-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.75s var(--ease-out);
}

.navarti-collection-gallery__item:hover img {
  transform: scale(1.03);
}

/* Wide detail / technical images */
.navarti-wide-image {
  width: 100%;
  background: #fff;
  border: 1px solid var(--navarti-border);
  padding: clamp(1.25rem, 2.5vw, 2rem);
  box-sizing: border-box;
}

.navarti-wide-image--tech {
  background: var(--navarti-light);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.navarti-wide-image img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

.navarti-wide-image--tap {
  cursor: zoom-in;
  transition: border-color 0.35s, box-shadow 0.35s;
}

.navarti-wide-image--tap:hover {
  border-color: rgba(200, 34, 44, 0.22);
  box-shadow: 0 8px 32px rgba(17, 17, 17, 0.06);
}

/* ═════════════════════════════════════════════════════════════
   DOWNLOADS
   ═════════════════════════════════════════════════════════════ */
.navarti-downloads-section {
  background: var(--navarti-light);
}

.navarti-downloads-list {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 3rem);
}

.navarti-download-card {
  margin: 0;
}

.navarti-download-card__caption {
  display: block;
  margin-top: 1rem;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--navarti-gray);
  text-align: center;
}

/* ═════════════════════════════════════════════════════════════
   CTA
   ═════════════════════════════════════════════════════════════ */
.navarti-cta-section {
  background: var(--navarti-dark);
  padding-block: clamp(5rem, 10vw, 8rem);
}

.navarti-cta-inner {
  text-align: center;
  max-width: 52rem;
  margin-inline: auto;
}

.navarti-cta-section .navarti-section__eyebrow {
  color: rgba(255, 255, 255, 0.5);
}

.navarti-cta__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: #fff;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.navarti-cta__desc {
  font-size: clamp(0.9375rem, 1.3vw, 1.0625rem);
  font-weight: 300;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: 2.5rem;
}

.navarti-cta__btn {
  display: inline-flex;
  align-items: center;
  padding: 1.1rem 2.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: var(--navarti-accent);
  border: 1px solid var(--navarti-accent);
  transition: opacity 0.35s;
}

.navarti-cta__btn:hover {
  opacity: 0.88;
}

/* ═════════════════════════════════════════════════════════════
   LIGHTBOX
   ═════════════════════════════════════════════════════════════ */
.navarti-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 10, 0.92);
  padding: clamp(1rem, 4vw, 2rem);
  box-sizing: border-box;
}

.navarti-lightbox[hidden] {
  display: none;
}

.navarti-lightbox__close {
  position: absolute;
  top: clamp(1rem, 3vw, 1.5rem);
  inset-inline-end: clamp(1rem, 3vw, 1.5rem);
  width: 2.75rem;
  height: 2.75rem;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.3s;
}

.navarti-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.navarti-lightbox__stage {
  max-width: min(96vw, 1400px);
  max-height: 90vh;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.navarti-lightbox__stage img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}

/* ═════════════════════════════════════════════════════════════
   RESPONSIVE
   ═════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .navarti-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: clamp(16rem, 38vw, 28rem);
  }

  .navarti-gallery-item--large {
    grid-column: span 2;
  }

  .navarti-collection-gallery--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .navarti-hero {
    min-height: 100svh;
  }

  .navarti-hero__image img {
    min-height: 100svh;
    object-position: center 30%;
  }

  .navarti-gallery-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: clamp(14rem, 65vw, 22rem);
  }

  .navarti-gallery-item--large {
    grid-column: span 1;
  }

  .navarti-collection-gallery--3,
  .navarti-collection-gallery--2 {
    grid-template-columns: 1fr;
  }

  .navarti-collection__row {
    grid-template-columns: 1fr;
  }

  .navarti-collection-gallery__item {
    aspect-ratio: 4 / 3;
  }

  .navarti-wide-image {
    padding: clamp(0.75rem, 3vw, 1.25rem);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .navarti-wide-image img {
    min-width: 100%;
  }
}

@media (max-width: 400px) {
  .navarti-hero__title {
    font-size: clamp(2.75rem, 13vw, 4rem);
  }
}