/* 
  Standard Project Subpage Template CSS
  Minimalist Editorial Architecture Style
*/

.project-page {
  background: var(--color-white);
  min-height: 100vh;
  color: var(--color-black);
}

/* Header Hero */
.project-hero {
  width: 100%;
  height: 100vh;
  min-height: 500px;
  position: relative;
  overflow: hidden;
  margin-top: 0;
}

.project-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-header-text {
  max-width: 1400px;
  margin: 0 auto;
  padding: 4rem clamp(1.5rem, 5vw, 4rem);
}

.project-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

/* Standard font-weight for English project titles */
body:not(.lang-fa) .project-title {
  font-weight: 400;
  letter-spacing: -0.01em;
}

.project-subtitle {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-color-secondary);
}

/* Content Sections */
.project-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem) 4rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Split Narrative */
.split-narrative {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.narrative-text {
  text-align: justify !important;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.8;
  color: var(--text-color-primary);
  position: sticky;
  top: 120px;
}

.narrative-images {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.narrative-images img {
  width: 100%;
  height: auto;
  aspect-ratio: 4/5;
  object-fit: cover;
}

/* 3-Column Grids */
.gallery-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.gallery-grid-3 img {
  width: 100%;
  height: auto;
  aspect-ratio: 4/5;
  object-fit: cover;
}

.drawings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--color-light-gray);
  padding-top: 4rem;
}

.drawings-grid img {
  width: 100%;
  height: auto;
  aspect-ratio: 1/1;
  object-fit: contain;
  background: var(--color-off-white);
  padding: 2rem;
  mix-blend-mode: multiply;
}

/* Reusable Image Utilities */
.lightbox-trigger {
  cursor: pointer;
  transition: opacity 0.3s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox-trigger:hover {
  opacity: 0.9;
  transform: scale(1.02);
}

/* Responsive */
@media (max-width: 992px) {
  .split-narrative {
    grid-template-columns: 1fr;
  }
  .narrative-text {
  text-align: justify !important;
    position: relative;
    top: 0;
  }
}

@media (max-width: 768px) {
  .gallery-grid-3,
  .drawings-grid {
    grid-template-columns: 1fr;
  }
  .project-hero {
    height: 100vh;
  }
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.lightbox-content {
  position: relative;
  z-index: 100000;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-wrapper {
  max-width: 90vw;
  max-height: 90vh;
}

#lbImg {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.lb-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--color-black);
  cursor: pointer;
  padding: 0.5rem;
  z-index: 100001;
}

.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-black);
  cursor: pointer;
  padding: 1rem;
  z-index: 100001;
}

.lb-prev { left: 2rem; }
.lb-next { right: 2rem; }

@media (max-width: 768px) {
  .lb-prev { left: 0.5rem; }
  .lb-next { right: 0.5rem; }
  .lb-close { top: 1rem; right: 1rem; }
}

/* Crisp typography for English */
body:not(.lang-fa) .narrative-text {
  text-align: justify !important;
  text-justify: inter-word;
  hyphens: auto;
  font-weight: 400;
  letter-spacing: 0.01em;
}

body.lang-fa .narrative-text {
  text-align: justify !important;
  font-weight: 400; /* keep Farsi readable */
}

/* Dynamic Navbar Theme for Light Hero Images */
.navbar.navbar-dark-text .nav-brand-name,
.navbar.navbar-dark-text .nav-link,
.navbar.navbar-dark-text .lang-switcher,
.navbar.navbar-dark-text .nav-social-link {
  color: var(--color-black);
}

.navbar.navbar-dark-text .lang-switcher {
  border-color: currentColor;
}

.navbar.navbar-dark-text .nav-toggle span {
  background-color: var(--color-black);
}

.navbar.navbar-dark-text .nav-brand-logo {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect x='10' y='10' width='35' height='35' fill='none' stroke='%230a0a0a' stroke-width='3'/%3E%3Crect x='55' y='10' width='35' height='35' fill='%230a0a0a'/%3E%3Crect x='10' y='55' width='35' height='35' fill='%230a0a0a'/%3E%3Crect x='55' y='55' width='35' height='35' fill='none' stroke='%230a0a0a' stroke-width='3'/%3E%3C/svg%3E");
}

/* =========================================
      # Modern Editorial Refactor
   ========================================= */

/* Hero Parallax */
.parallax-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.parallax-hero img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
  /* Will-change for parallax performance */
  will-change: transform;
}

.project-hero-overlay {
  position: relative;
  z-index: 1;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.2) 20%, rgba(0,0,0,0.2) 100%);
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.project-hero-overlay .project-title {
  color: #fff;
  text-align: center;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
  margin: 0;
}

/* Metadata Bar */
.project-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem clamp(1.5rem, 5vw, 4rem);
  /* border-bottom: 1px solid var(--color-light-gray); */
  position: relative;
  background: var(--color-white);
}

body.lang-fa .project-meta-bar::after {
  left: auto;
  right: clamp(1.5rem, 5vw, 4rem);
}

.project-meta-bar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: clamp(1.5rem, 5vw, 4rem); /* Align with padding */
  width: 33%;
  height: 1px;
  background-color: var(--color-light-gray);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.meta-item span {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-color-secondary);
}

.meta-item strong {
  font-size: 1.1rem;
  font-weight: 500;
}

/* Editorial Brief */
.editorial-brief {
  display: grid;
  grid-template-columns: 1fr 3fr; /* Tighter footprint for title */
  gap: 2rem; /* Standardized gap */
  margin-top: 2rem;
}

.brief-title h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 400;
  margin: 0;
  line-height: 1.2;
}

/* Dynamic Gallery Rhythms */
.editorial-gallery {
  display: flex;
  flex-direction: column;
  gap: 1.5rem; /* Strict uniform spacing */
}

.gallery-panorama img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.gallery-diptych {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem; /* Strict uniform spacing */
}

.gallery-diptych img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.gallery-triptych {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem; /* Strict uniform spacing */
}

.gallery-triptych img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* Specs Drawer */
.specs-drawer {
  background: var(--color-off-white);
  padding: 4rem;
  margin-top: 2rem;
  border-radius: 4px;
}

.specs-title {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 3rem;
  /* border-bottom: 1px solid var(--color-light-gray); */
  position: relative;
  padding-bottom: 1rem;
}

.specs-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 33%;
  height: 1px;
  background-color: var(--color-light-gray);
}

body.lang-fa .specs-title::after {
  left: auto;
  right: 0;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.spec-block {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
}

.spec-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-color-secondary);
}

.spec-value {
  font-size: 1.1rem;
  line-height: 1.5;
}

/* Next Project Teaser */
.next-project-teaser {
  text-decoration: none;
  background: var(--color-white);
  padding-bottom: 6rem;
}

.next-project-content {
  position: relative;
  text-align: center;
  color: var(--text-color-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 4rem; /* Distinct visual gap before thumbnail container begins */
}

.next-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  margin: 0;
  color: var(--text-color-secondary);
}

.next-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 400;
  margin: 0;
  line-height: 1;
}

.next-project-thumbnail-wrapper {
  width: 100%;
  height: 60vh;
  min-height: 400px;
  overflow: hidden;
  position: relative;
  background: var(--color-off-white);
}

.next-project-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.next-project-teaser:hover .next-project-bg {
  transform: scale(1.03);
}

/* RTL Support for Teaser */
body.lang-fa .next-title,
body.lang-fa .next-label {
  font-family: var(--font-persian);
  letter-spacing: normal;
}

body.lang-fa .next-title {
  font-weight: 300; /* Replaced 700 */
  
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .editorial-brief {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .specs-drawer {
    padding: 2rem;
  }
}

/* Narrative Typography Updates */
.brief-text {
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  line-height: 1.8;
  color: var(--text-color-primary);
  text-align: justify !important;
  text-justify: inter-word;
  hyphens: auto;
}

@media (min-width: 992px) {
  .brief-text {
    column-count: 2;
    column-gap: 3rem;
  }
}

/* =========================================
      # Architectural Demarcation System
   ========================================= */

.architectural-section {
  display: grid;
  grid-template-columns: 1fr;
  padding: 6rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 992px) {
  .architectural-section {
    grid-template-columns: 200px 1fr;
    gap: 4rem;
    padding: 8rem clamp(1.5rem, 5vw, 4rem);
  }
}

.section-index {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 992px) {
  .section-index {
    position: sticky;
    top: 120px;
    margin-bottom: 0;
  }
}

.idx-num, .idx-title {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-color-secondary);
}

.section-body {
  width: 100%;
}

/* Tonal Shifts */
.tonal-shift-light,
.tonal-shift-drafting,
.tonal-shift-dark {
  position: relative;
}

.tonal-shift-light::before,
.tonal-shift-drafting::before,
.tonal-shift-dark::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  z-index: -1;
}

.tonal-shift-light::before {
  background-color: #FAF9F6;
}

.tonal-shift-drafting::before {
  background-color: #F3F3F1;
  background-image: 
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

.tonal-shift-dark::before {
  background-color: #121212;
}

.tonal-shift-dark {
  color: #fff;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.tonal-shift-dark .idx-num, 
.tonal-shift-dark .idx-title, 
.tonal-shift-dark .spec-label {
  color: rgba(255,255,255,0.5);
}
.tonal-shift-dark .spec-value {
  color: #fff;
}

/* RTL Support */
body.lang-fa .idx-num,
body.lang-fa .idx-title {
  font-family: var(--font-persian);
  letter-spacing: normal;
}



/* Fix section-index layout */
.section-index {
  display: flex !important;
  flex-direction: row !important;
  align-items: baseline !important;
  gap: 0.5rem !important;
}

@media (min-width: 992px) {
  .section-index {
    flex-direction: column !important;
    align-items: flex-start !important;
  }
}

/* Always keep section index in a row */
@media (min-width: 992px) {
  .section-index {
    flex-direction: row !important;
    align-items: baseline !important;
    gap: 0.5rem !important;
  }
}

.narrative-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}