/* DECKORARQ Refined Editorial Design System & Styling */

/* --- Custom Variables & Luxury Tokens --- */
:root {
  --bg-primary: #050505;
  --bg-secondary: #0c0d0e;
  --bg-glass: rgba(10, 11, 12, 0.82);
  
  --accent-gold: #bfa37a;
  --accent-gold-hover: #d1bba0;
  --accent-gold-dark: #786245;
  --accent-gold-glow: rgba(191, 163, 122, 0.08);
  
  --text-light: #ffffff;
  --text-primary: #e1e3e5;
  --text-muted: #83888b;
  --text-dark: #4d5153;
  
  --border-thin: rgba(255, 255, 255, 0.035);
  --border-gold: rgba(191, 163, 122, 0.12);
  
  --font-title: 'Outfit', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  
  --transition-editorial: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  
  --radius-sm: 2px;
  --radius-md: 4px;
}

/* --- Base Styling --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Material Texture Layer --- */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  content: "";
  opacity: 0.035;
  z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- Scrollbar Customization --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--accent-gold-dark);
  border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold);
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.container-fluid {
  width: 100%;
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 40px;
}

/* --- Dynamic Header --- */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: var(--transition-editorial);
}

.main-header.scrolled {
  background-color: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-thin);
}

.header-container {
  max-width: 1560px;
  margin: 0 auto;
  padding: 24px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-brand {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text-light);
  line-height: 1;
}

.logo-tagline {
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--accent-gold);
  margin-top: 5px;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 48px;
}

.nav-link {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
}

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

.nav-catalog-trigger {
  background: transparent;
  border: 0;
  font-family: inherit;
  cursor: pointer;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-gold);
  transition: var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.btn-catalog-trigger {
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  padding: 8px 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-fast);
}

.btn-catalog-trigger:hover {
  background-color: var(--accent-gold);
  color: var(--bg-primary);
  border-color: var(--accent-gold);
}

/* Mobile Toggle Hamburger button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  display: none;
  flex-direction: column;
  gap: 6px;
}

.mobile-menu-toggle .bar {
  width: 24px;
  height: 1px;
  background-color: var(--text-light);
  transition: var(--transition-fast);
}

/* --- Mobile Drawer Menu --- */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100%;
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-thin);
  z-index: 200;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  transition: var(--transition-editorial);
}

.mobile-drawer.open {
  right: 0;
}

.close-drawer-btn {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 24px;
  cursor: pointer;
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.drawer-link {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
}

.drawer-link:hover {
  color: var(--accent-gold);
}

/* --- Hero Section (Editorial Portrait) --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  background-image: radial-gradient(circle at 10% 20%, #0d0e0f 0%, var(--bg-primary) 60%);
}

.hero-glow-layer {
  position: absolute;
  top: 35%;
  right: 15%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(191, 163, 122, 0.05) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(60px);
}

.hero-content {
  max-width: 960px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.hero-pretitle {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent-gold);
}

.hero-title {
  font-size: clamp(38px, 6.5vw, 72px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.title-line {
  display: block;
}

.hero-lead {
  font-size: clamp(16px, 2.5vw, 19px);
  max-width: 680px;
  color: var(--text-primary);
  font-weight: 300;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 12px;
}

.btn-editorial-primary {
  background-color: var(--accent-gold);
  color: var(--bg-primary);
  padding: 16px 36px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.btn-editorial-primary:hover {
  background: rgba(191, 163, 122, 0.05);
  transform: translateY(-2px);
}

.btn-editorial-secondary {
  background-color: transparent;
  border: 1px solid var(--border-gold);
  color: var(--accent-gold);
  padding: 16px 36px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-fast);
}

.btn-editorial-secondary:hover {
  background-color: rgba(191, 163, 122, 0.05);
  border-color: var(--accent-gold-hover);
  transform: translateY(-2px);
}

/* Minimalist scroll down line indicator */
.hero-scroll-btn {
  position: absolute;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  display: block;
}

.hero-scroll-btn .scroll-line {
  display: block;
  width: 1px;
  height: 50px;
  background-color: var(--accent-gold-dark);
  position: relative;
  overflow: hidden;
}

.hero-scroll-btn .scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 20px;
  background-color: var(--accent-gold-hover);
  animation: scrollAnim 2s infinite cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scrollAnim {
  0% { transform: translateY(-20px); }
  50%, 100% { transform: translateY(50px); }
}

/* --- Gallery & Asymmetric Reticle Grid --- */
.gallery-section {
  padding: 120px 0;
  border-top: 1px solid var(--border-thin);
  background-color: var(--bg-primary);
}

.gallery-header {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-bottom: 64px;
}

@media (min-width: 1024px) {
  .gallery-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.section-pretitle {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gallery-navigation {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.category-link {
  background: none;
  border: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.category-link:hover, .category-link.active {
  color: var(--text-light);
}

.category-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-gold);
  transition: var(--transition-fast);
}

.category-link:hover::after, .category-link.active::after {
  width: 100%;
}

/* Asymmetric Grid Definition */
.asymmetric-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 56px;
}

/* Image-led editorial product cards */
.editorial-card {
  position: relative;
  background: transparent;
  border: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: var(--transition-editorial);
  cursor: pointer;
}

.editorial-card:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 8px;
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1.1;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.card-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.card-image-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(17, 17, 17, 0.76) 0%, rgba(17, 17, 17, 0.25) 58%, rgba(17, 17, 17, 0.04) 100%);
  transition: background 350ms ease;
}

.editorial-card:hover .card-image,
.editorial-card:focus-visible .card-image {
  transform: scale(1.055);
}

.editorial-card:hover .card-image-shade {
  background: linear-gradient(90deg, rgba(17, 17, 17, 0.86) 0%, rgba(17, 17, 17, 0.38) 62%, rgba(17, 17, 17, 0.12) 100%);
}

/* Uniform three-column gallery on desktop */
@media (min-width: 900px) {
  .editorial-card { grid-column: span 4; }
}

@media (max-width: 899px) {
  .asymmetric-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }
  .editorial-card {
    min-height: 0;
  }
  .card-image-wrap { aspect-ratio: 1 / 1.08; }
}

.card-copy {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: clamp(24px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 12px;
}

.card-category {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.card-title {
  font-size: clamp(22px, 2.5vw, 38px);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-light);
}

.card-rule {
  width: 72px;
  height: 1px;
  background-color: var(--accent-gold);
  margin-top: 8px;
}

.btn-card-more {
  background-color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  color: var(--bg-primary);
  padding: 11px 16px;
  margin-top: 12px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.btn-card-more:hover,
.btn-card-more:focus-visible {
  background-color: transparent;
  color: var(--text-light);
}


/* Scroll Entry Animations configuration */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes revealUp {
      from {
        opacity: 0;
        transform: translateY(60px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    .asymmetric-grid > * {
      animation: revealUp auto linear backwards;
      animation-timeline: view();
      animation-range: entry 5% entry 25%;
    }
  }
}

/* --- Showroom & Contact Layout --- */
.contact-section {
  padding: 140px 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-thin);
  position: relative;
  overflow: hidden;
}

.contact-glow-layer {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(191, 163, 122, 0.03) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.showroom-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
}

@media (min-width: 1024px) {
  .showroom-layout {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
  }
}

.visual-card-wrapper {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-gold);
  padding: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  position: relative;
}

.visual-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--accent-gold);
}

.visual-title {
  font-size: clamp(24px, 3.5vw, 36px);
  line-height: 1.2;
}

.visual-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.visual-stamp {
  display: flex;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--border-thin);
  padding-top: 24px;
  color: var(--accent-gold);
}

.visual-stamp i {
  font-size: 32px;
}

.visual-stamp div {
  display: flex;
  flex-direction: column;
}

.visual-stamp strong {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.visual-stamp span {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-primary);
}

.contact-pretitle {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 8px;
}

.contact-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

.contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.method-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.method-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.method-value {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 400;
  color: var(--text-light);
}

.method-value:hover {
  color: var(--accent-gold-hover);
}

.method-value.text-only {
  cursor: default;
}

/* --- Footer --- */
.editorial-footer {
  padding: 60px 0;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-thin);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.footer-copy {
  font-size: 12px;
  color: var(--text-dark);
}

.footer-socials {
  display: flex;
  gap: 24px;
}

.footer-socials a {
  color: var(--text-muted);
  font-size: 16px;
  transition: var(--transition-fast);
}

.footer-socials a:hover {
  color: var(--accent-gold);
}

/* --- Dialog Modals System --- */
dialog.glass-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.97);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.8);
  padding: 0;
  max-width: 840px;
  width: 90%;
  max-height: 90vh;
  outline: none;
  overflow: hidden;
  opacity: 0;
  transition: 
    opacity 0.4s ease, 
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    overlay 0.4s allow-discrete, 
    display 0.4s allow-discrete;
}

dialog.glass-dialog[open] {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

@starting-style {
  dialog.glass-dialog[open] {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.97);
  }
}

dialog.glass-dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  transition: 
    opacity 0.4s ease,
    overlay 0.4s allow-discrete, 
    display 0.4s allow-discrete;
}

dialog.glass-dialog[open]::backdrop {
  opacity: 1;
}

@starting-style {
  dialog.glass-dialog[open]::backdrop {
    opacity: 0;
  }
}

/* Dialog inner content */
.dialog-content-wrapper {
  position: relative;
  padding: 56px;
  overflow-y: auto;
  max-height: 90vh;
}

.dialog-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: transparent;
  border: 1px solid var(--border-thin);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-fast);
}

.dialog-close-btn:hover {
  background-color: var(--accent-gold);
  color: var(--bg-primary);
  border-color: var(--accent-gold);
}

.dialog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

@media (min-width: 768px) {
  .dialog-grid {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: start;
  }
}

.dialog-media-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px dashed var(--border-gold);
  padding: 0;
  min-height: 240px;
  text-align: center;
  overflow: hidden;
}

.dialog-product-image {
  display: block;
  width: 100%;
  aspect-ratio: 77 / 95;
  object-fit: cover;
}

.dialog-media-caption {
  font-size: 11px;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.dialog-info-block {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.dialog-category {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  display: block;
  margin-bottom: 8px;
}

.dialog-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 500;
}

.dialog-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  font-weight: 300;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
}

.specs-table tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.specs-table tr:last-child {
  border-bottom: none;
}

.specs-table td {
  padding: 12px;
}

.specs-table td.spec-name {
  font-weight: 600;
  color: var(--text-primary);
  width: 40%;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
}

.specs-table td.spec-val {
  color: var(--text-muted);
}

.dialog-colors-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.dialog-colors-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dialog-color-chip {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(255,255,255,0.02);
  border: 1px solid var(--border-thin);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.color-dot-chip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dialog-actions {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.dialog-actions button {
  flex: 1;
}

@media (max-width: 575px) {
  .dialog-content-wrapper {
    padding: 56px 24px 32px;
  }

  .dialog-media-block {
    min-height: 180px;
    padding: 32px 20px;
  }

  .dialog-actions {
    flex-direction: column;
  }
}

/* Accessory Items listing */
.items-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.items-list-item {
  display: flex;
  gap: 12px;
  font-size: 13px;
  background-color: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-thin);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--accent-gold);
  align-items: center;
}

.items-list-item i {
  color: var(--accent-gold);
  margin-top: 3px;
}

/* --- PDF Catalog Modal & Flipbook Container --- */
dialog.pdf-dialog {
  max-width: 1200px;
  width: 95%;
  height: 88vh;
}

.pdf-viewer-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pdf-viewer-header {
  padding: 20px 32px;
  background-color: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--border-thin);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pdf-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.15em;
  display: flex;
  align-items: center;
  gap: 12px;
}

.pdf-title i {
  color: #ff4d4d;
}

.pdf-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pdf-ctrl-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  padding: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.pdf-ctrl-btn:hover {
  color: var(--text-light);
}

.pdf-close-btn {
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 20px;
  padding: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-left: 8px;
}

.pdf-close-btn:hover {
  color: #ff4d4d;
}

/* Book Space viewport */
.pdf-book-container {
  flex: 1;
  background-color: #08090a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: auto;
  padding: 40px;
}

.pdf-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 13px;
  z-index: 10;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 2px solid rgba(191, 163, 122, 0.1);
  border-top-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 3D Flipbook structure */
.flipbook {
  position: relative;
  width: 860px;
  height: 580px;
  display: flex;
  perspective: 2000px;
  transform-style: preserve-3d;
  transition: opacity 0.25s ease-in-out, transform 0.25s ease-in-out;
}

/* Turning Class to trigger page turning visual blur/zoom */
.page-turning {
  opacity: 0.45;
  transform: scale(0.97);
  filter: blur(1px);
}

/* Page sheets */
.page-container {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  background-color: #111213;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7);
  overflow: hidden;
}

.page-left {
  left: 0;
  border-top-left-radius: var(--radius-sm);
  border-bottom-left-radius: var(--radius-sm);
  border-right: 1px solid rgba(0,0,0,0.3);
}

.page-right {
  right: 0;
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
  border-left: 1px solid rgba(0,0,0,0.3);
}

.pdf-canvas {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.page-number-overlay {
  position: absolute;
  bottom: 12px;
  color: rgba(255, 255, 255, 0.25);
  font-size: 10px;
  font-family: var(--font-body);
  letter-spacing: 0.05em;
}

.page-left .page-number-overlay {
  left: 24px;
}

.page-right .page-number-overlay {
  right: 24px;
}

/* Single Page Mobile Viewport */
.single-page-viewer {
  position: relative;
  width: 430px;
  height: 580px;
  background-color: #111213;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: opacity 0.25s ease-in-out, transform 0.25s ease-in-out;
}

.single-page-viewer .page-number-overlay {
  right: 24px;
}

/* Bottom Navigation Controls */
.pdf-viewer-footer {
  padding: 16px 32px;
  background-color: rgba(0, 0, 0, 0.4);
  border-top: 1px solid var(--border-thin);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pdf-nav-btn {
  background: none;
  border: none;
  color: var(--accent-gold);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pdf-nav-btn:hover:not(:disabled) {
  color: var(--text-light);
  transform: translateX(4px);
}

#btnPdfPrev:hover:not(:disabled) {
  transform: translateX(-4px);
}

.pdf-nav-btn:disabled {
  color: var(--text-dark);
  cursor: not-allowed;
}

.pdf-page-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.pdf-page-selector input {
  width: 50px;
  padding: 6px;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-sm);
  color: var(--text-light);
  text-align: center;
  font-size: 13px;
  font-weight: 600;
}

/* --- Responsive Adaptability --- */
@media (max-width: 1024px) {
  .header-container {
    padding: 24px 32px;
  }
}

@media (max-width: 900px) {
  .nav-menu {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  
  /* Make flipbook show only one page (Mobile view) */
  .flipbook {
    display: none !important;
  }
  
  .single-page-viewer {
    display: block !important;
    width: 320px;
    height: 440px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 24px;
  }
  
  .container-fluid {
    padding: 0 24px;
  }
  
  .hero-section {
    padding-left: 24px;
    padding-right: 24px;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions a, .hero-actions button {
    width: 100%;
    justify-content: center;
  }
  
  .dialog-content-wrapper {
    padding: 32px 24px;
  }
  
  .dialog-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .dialog-media-block {
    padding: 32px;
  }
  
  .pdf-viewer-header {
    padding: 12px 24px;
  }
  
  .pdf-viewer-footer {
    padding: 12px 24px;
  }
  
  .single-page-viewer {
    width: 270px;
    height: 380px;
  }
}