/* ==========================================
   MINIMALIST ART-BOOK PORTFOLIO THEME
   ========================================== */

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color Palette - Minimalist Art-Book (White & Charcoal) */
  --bg-main: #ffffff;
  --bg-chatbot: #0a0908;
  --text-primary: #0a0a0a;
  --text-secondary: #8a8a84;
  --border-color: #ececec;
  
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
}

/* Typography & Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: 0;
}

h1.section-title {
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 12px;
}

h2.section-title {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 24px;
}

a, a:visited, a:active {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

button {
  font-family: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

/* Animations */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-simple {
  animation: pageEnter var(--transition-medium) forwards;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 60px 0;
}

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: 1000;
  background-color: var(--bg-main);
  border-bottom: 0.5px solid var(--border-color);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  flex-wrap: nowrap;
}

.logo {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-primary);

}

.desktop-only {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: nowrap;
}

.nav-link {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;

  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.lang-toggle {
  font-size: 11px;
  color: var(--text-secondary);
  border: 0.5px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 2px;

  transition: all var(--transition-fast);
}

.lang-toggle:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.burger-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
}

/* Mobile drawer styling */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 48px;
  background-color: var(--bg-main);
  
  /* Smooth transitions with hardware acceleration */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.drawer-close {
  position: absolute;
  top: 24px;
  right: 24px;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.mobile-nav .nav-link {
  font-size: 16px;
}

/* Spacing Helpers */
.pt-32 {
  padding-top: 120px !important;
}

.pb-20 {
  padding-bottom: 60px !important;
}

/* CTA / Button Style - Underlined Text */
.btn-primary, .btn-secondary, .btn-action, button[type="submit"] {
  background: none !important;
  border: none !important;
  border-bottom: 1px solid var(--text-primary) !important;
  border-radius: 0 !important;
  padding: 0 0 2px 0 !important;
  color: var(--text-primary) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  cursor: pointer;

  letter-spacing: 0.02em !important;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.btn-primary:hover, .btn-secondary:hover, .btn-action:hover, button[type="submit"]:hover {
  opacity: 0.55 !important;
  background: none !important;
}

/* Home Section Styles */
.home-hero {
  text-align: left;
  padding: 100px 24px 70px 24px;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.hero-kicker {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.hero-mega {
  font-size: clamp(48px, 11vw, 110px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 0.95;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.hero-signature {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.home-tagline {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 2px;
  margin-bottom: 60px;
}

.home-grid .photo-card:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

@media (max-width: 768px) {
  .home-grid {
    grid-template-columns: 1fr;
  }
  .home-grid .photo-card:first-child {
    grid-column: span 1;
    grid-row: span 1;
  }
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2px;
}

.yk-mention {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 40px;
}

.text-link-inline {
  color: var(--text-primary);
  border-bottom: 1px solid var(--text-primary);
  transition: opacity var(--transition-fast);
}

.text-link-inline:hover {
  opacity: 0.55;
}

/* Photo Cards (Pure Grid) */
.photo-card {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  cursor: zoom-in;
  border-radius: 0;
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.photo-card:hover img {
  transform: scale(1.02);
}

/* Hover Overlay for photos */
.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 16px;
  pointer-events: none;
}

.photo-card:hover .photo-overlay {
  opacity: 1;
}

.photo-meta {
  color: #ffffff;
}

.photo-meta h3 {
  font-size: 11px;
  font-weight: 400;
  color: #ffffff;
  margin: 0;
}

.photo-catalog-num {
  display: block;
  font-size: 10px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.65);
  margin-bottom: 2px;
}

.photo-year {
  color: #ffffff;
  font-size: 11px;
  font-weight: 400;
}

/* Photo Tabs Container */
.gallery-tab-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  border-bottom: 0.5px solid var(--border-color);
  padding-bottom: 20px;
}

.tab-btn {
  font-size: 12px;
  color: var(--text-secondary);

  padding: 4px 8px;
  transition: color var(--transition-fast);
}

.tab-btn:hover, .tab-btn.active {
  color: var(--text-primary);
}

.tab-btn.active {
  border-bottom: 1px solid var(--text-primary);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px;
  align-items: start;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.about-photo-col {
  grid-column: span 5;
}

@media (max-width: 768px) {
  .about-photo-col {
    grid-column: span 12;
    display: flex;
    justify-content: center;
  }
}

.about-portrait-frame {
  max-width: 320px;
  width: 100%;
}

.about-portrait-frame img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  filter: grayscale(1);
  border-radius: 0;
}

.about-text-col {
  grid-column: span 7;
}

@media (max-width: 768px) {
  .about-text-col {
    grid-column: span 12;
  }
}

.about-intro-p {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* Highlights stats row */
.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.highlight-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 0.5px solid var(--border-color);
  padding-bottom: 12px;
}

.highlight-num {
  font-size: 20px;
  font-weight: 500;
  color: var(--text-primary);
  min-width: 50px;
}

.highlight-label {
  font-size: 13px;
  color: var(--text-secondary);

}

/* Horizontal Timeline */
.about-horizontal-timeline {
  display: flex;
  justify-content: space-between;
  border-top: 0.5px solid var(--border-color);
  padding-top: 24px;
  margin-top: 40px;
  flex-wrap: wrap;
  gap: 20px;
}

.timeline-milestone {
  flex: 1;
  min-width: 140px;
}

.milestone-year {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  display: block;
}

.milestone-text {
  font-size: 12px;
  color: var(--text-secondary);

  line-height: 1.4;
}

/* Accordions */
.accordion-container {
  display: flex;
  flex-direction: column;
  margin-top: 40px;
}

.accordion-item {
  border-bottom: 0.5px solid var(--border-color);
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  text-align: left;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);

}

.accordion-header:hover {
  opacity: 0.7;
}

.accordion-icon {
  color: var(--text-secondary);
  font-size: 10px;
}

.accordion-body {
  padding-bottom: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;

}

/* Publications Section */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}

.pub-card {
  border-bottom: 0.5px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.pub-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.pub-year {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.pub-card h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;

}

.pub-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;

}

.pub-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 12px;
}

.pub-label-bottom {
  font-size: 11px;
  color: var(--text-secondary);

}

/* Articles Section */
.articles-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.article-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 0.5px solid var(--border-color);
  transition: opacity var(--transition-fast);
}

.article-link:hover {
  opacity: 0.55;
}

.article-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;

}

.article-source {
  font-size: 11px;
  color: var(--text-secondary);

}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.contact-form-col {
  grid-column: span 7;
}

@media (max-width: 768px) {
  .contact-form-col {
    grid-column: span 12;
  }
}

.contact-info-col {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

@media (max-width: 768px) {
  .contact-info-col {
    grid-column: span 12;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-label {
  font-size: 11px;
  color: var(--text-secondary);

}

.form-input {
  background-color: #ffffff;
  border: 0.5px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 0;
  padding: 12px;
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--text-primary);
}

.contact-info-box {
  border-top: 0.5px solid var(--border-color);
  padding-top: 20px;
}

.info-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.info-header h3 {
  font-size: 12px;
  font-weight: 500;

}

.contact-info-box h4 {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;

}

.contact-info-box p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.social-link-item {
  transition: color var(--transition-fast);
}

.social-link-item:hover {
  color: var(--text-primary) !important;
}

/* Chatbot Section (Dark Mode Matte) */
.chatbot-page {
  background-color: var(--bg-chatbot) !important;
  color: #ffffff !important;
  min-height: 100vh;
}

.chatbot-page .site-header {
  background-color: var(--bg-chatbot) !important;
  border-bottom-color: #222222 !important;
}

.chatbot-page .logo {
  color: #ffffff !important;
}

.chatbot-page .nav-link {
  color: #888888 !important;
}

.chatbot-page .nav-link:hover, .chatbot-page .nav-link.active {
  color: #ffffff !important;
}

.chatbot-page .burger-btn {
  color: #ffffff !important;
}

.chatbot-page .site-footer {
  background-color: var(--bg-chatbot) !important;
  border-top-color: #222222 !important;
  color: #888888 !important;
}

.chatbot-page .footer-link:hover {
  color: #ffffff !important;
}

.chat-widget {
  background-color: var(--bg-chatbot);
  height: 600px;
  display: flex;
  flex-direction: column;
  border: 0.5px solid #222222;
  border-radius: 2px;
  margin-top: 20px;
}

.chat-banner {
  border-bottom: 0.5px solid #222222;
  padding: 16px 24px;
  background: none;
}

.chat-banner-info h2 {
  font-size: 13px;
  font-weight: 500;
  color: #ffffff;

}

.chat-status {
  font-size: 11px;
  color: #888888;
  display: flex;
  align-items: center;
  gap: 6px;

  margin-top: 2px;
}

.chat-status-dot {
  width: 6px;
  height: 6px;
  background-color: #4cd964;
  border-radius: 50%;
}

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: var(--bg-chatbot);
}

.msg-row {
  display: flex;
  width: 100%;
}

.msg-row.bot {
  justify-content: flex-start;
}

.msg-row.user {
  justify-content: flex-end;
}

.chat-bubble {
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.5;
  max-width: 75%;
}

.msg-row.bot .chat-bubble {
  background-color: #1c1a18;
  color: #ffffff;
  border-bottom-left-radius: 2px;
}

.msg-row.user .chat-bubble {
  background-color: #ffffff;
  color: #0a0a0a;
  border-bottom-right-radius: 2px;
}

.chat-suggestions {
  padding: 12px 24px;
  border-top: 0.5px solid #222222;
  background: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.chat-suggestions-label {
  font-size: 11px;
  color: #888888;

}

.suggestion-pill {
  font-size: 11px;
  padding: 6px 12px;
  border-radius: 9999px;
  border: 0.5px solid #333333;
  background-color: #1c1a18;
  color: #eaeaea;
  cursor: pointer;
  transition: opacity var(--transition-fast);

}

.suggestion-pill:hover {
  opacity: 0.8;
}

.chat-input-bar {
  padding: 16px;
  border-top: 0.5px solid #222222;
  background: none;
}

.chat-form {
  position: relative;
  display: flex;
}

.chat-input {
  width: 100%;
  background-color: #1c1a18;
  border: 0.5px solid #333333;
  color: #ffffff;
  border-radius: 9999px;
  padding: 12px 60px 12px 24px;
  font-size: 13px;
  outline: none;
}

.chat-input:focus {
  border-color: #555555;
}

.chat-send-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #ffffff;
  cursor: pointer;
}

.chat-send-btn:hover {
  opacity: 0.7;
}

/* Lightbox Modal (with overlay) */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.98) !important;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px;
  overflow: hidden;
}

@media (max-width: 576px) {
  .lightbox {
    padding: 16px;
  }
}

.lightbox-content {
  width: 100%;
  max-width: 1600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 0;
  border: 0.5px solid var(--border-color);
  box-shadow: none;
}

.lightbox-close, .lightbox-nav {
  position: fixed;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2100;
}

.lightbox-close:hover, .lightbox-nav:hover {
  opacity: 0.6;
}

.lightbox-close {
  top: 24px;
  right: 24px;
}

.lightbox-nav.prev {
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-nav.next {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 576px) {
  .lightbox-nav.prev { left: 12px; }
  .lightbox-nav.next { right: 12px; }
}

.lightbox-meta {
  position: relative;
  margin-top: 20px;
  text-align: center;
  color: var(--text-primary);
}

.lightbox-title {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
}

.lightbox-sub {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Footer (General) */
.site-footer {
  background-color: var(--bg-main);
  border-top: 0.5px solid var(--border-color);
  padding: 40px 0;
  font-size: 12px;
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 576px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}

.footer-copy {
  color: var(--text-secondary);

}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-link, .footer-link:visited, .footer-link:active {
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--text-primary);
}

/* ==========================================
   BLOG LAYOUT & SKELETON LOADER
   ========================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 40px;
}

.flickr-feed-container {
  display: contents; /* Makes children participate directly in the grid layout */
}

.blog-card {
  border-bottom: 0.5px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  transition: opacity var(--transition-fast);
}

.blog-card-img-wrap {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  margin-bottom: 16px;
  background-color: var(--border-color);
}

.blog-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.blog-card:hover .blog-card-img-wrap img {
  transform: scale(1.02);
}

.blog-card-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.blog-card-date {
  font-size: 11px;
  color: var(--text-secondary);
}

.blog-card-platform {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  background-color: var(--border-color);
  color: var(--text-primary);
  font-weight: 500;
}

.blog-card-platform.flickr {
  background-color: #0063dc;
  color: #ffffff;
}

.blog-card-platform.instagram {
  background-color: #e1306c;
  color: #ffffff;
}

.blog-card-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.blog-card-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

.blog-card-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
  border-bottom: 1px solid var(--text-primary);
  width: fit-content;
  padding-bottom: 2px;
  text-decoration: none;
}

.blog-card-link:hover {
  opacity: 0.7;
}

/* Skeleton loader animations */
.skeleton-card {
  pointer-events: none;
}

.skeleton-img {
  width: 100%;
  aspect-ratio: 16/10;
  background: linear-gradient(90deg, #f0f0f0 25%, #f7f7f7 37%, #f0f0f0 63%);
  background-size: 400% 100%;
  animation: skeleton-pulse 1.4s ease infinite;
  margin-bottom: 16px;
}

.skeleton-text {
  height: 12px;
  background: linear-gradient(90deg, #f0f0f0 25%, #f7f7f7 37%, #f0f0f0 63%);
  background-size: 400% 100%;
  animation: skeleton-pulse 1.4s ease infinite;
  margin-bottom: 10px;
  border-radius: 2px;
}

.skeleton-text.line-1 {
  width: 70%;
}

.skeleton-text.line-2 {
  width: 90%;
}

@keyframes skeleton-pulse {
  0% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0 50%;
  }
}