/* ============================================
   LUMINESCENT PARCHMENT - FUTURISTIC BOOKBINDING
   ============================================ */

:root {
  /* Colors - Luminescent Parchment Palette */
  --color-primary: #050505;
  --color-secondary: #E8E4D9;
  --color-accent: #FF4D00;
  --color-accent-glow: rgba(255, 77, 0, 0.3);
  --color-text-primary: #050505;
  --color-text-secondary: #6B6B6B;
  --color-bg-overlay: rgba(232, 228, 217, 0.95);
  --color-glass: rgba(232, 228, 217, 0.1);
  --color-glass-border: rgba(255, 255, 255, 0.2);
  
  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-xxl: 6rem;
  
  /* Layout */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Effects */
  --shadow-sm: 0 2px 8px rgba(5, 5, 5, 0.1);
  --shadow-md: 0 4px 16px rgba(5, 5, 5, 0.15);
  --shadow-lg: 0 8px 32px rgba(5, 5, 5, 0.2);
  --shadow-glow: 0 0 20px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Navigation */
  --nav-width: 280px;
  --header-height: 80px;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--color-secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.4rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

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

a:hover {
  color: var(--color-primary);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  position: relative;
  width: 100%;
  height: var(--header-height);
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-lg);
  z-index: 1000;
}

.brand-name {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
  color: var(--color-primary);
}

/* Horizontal Header Navigation */
.header-nav {
  display: none;
}

.header-nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.header-nav-link {
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.header-nav-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Vertical Spine Navigation */
.vertical-nav {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--nav-width);
  height: 100vh;
  background: linear-gradient(180deg, var(--color-primary) 0%, rgba(5, 5, 5, 0.95) 100%);
  border-right: 2px solid var(--color-accent);
  padding: var(--space-xl) var(--space-lg);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  z-index: 2000;
  overflow-y: auto;
}

.vertical-nav.active {
  transform: translateX(0);
}

.vertical-nav::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent-glow) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.vertical-nav:hover::before {
  opacity: 0.1;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: var(--space-xl);
}

.nav-link {
  color: var(--color-secondary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 0;
  background: var(--color-accent);
  transition: height var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  padding-left: var(--space-md);
}

.nav-link:hover::before {
  height: 100%;
}
.footer-contact a:hover{
  color: white;
}
/* Burger Menu Button - ALWAYS LAST IN HEADER */
.burger-toggle {
  position: relative;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  z-index: 20001;
  order: 999;
}

.burger-line {
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.burger-toggle.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* Overlay when menu is open */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 5, 5, 0.7);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 1999;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   FULL-WIDTH BANNERS
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3;
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  max-width: 1200px;
  width: 100%;
  background: rgba(232, 228, 217, 0.85);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  margin: 0 auto;
}

.banner-title {
  color: var(--color-primary);
  text-shadow: 0 2px 20px rgba(232, 228, 217, 0.8);
  margin-bottom: var(--space-lg);
}

.banner-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

/* ============================================
   SECTIONS
   ============================================ */

main {
  padding: var(--space-xl) 0;
}

.content-section {
  padding: var(--space-xxl) var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.content-section > * {
  text-align: left;
}

.content-section.text-center > * {
  text-align: center;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
  padding-bottom: var(--space-md);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  text-align: left;
  display: flex;
  flex-direction: column;
}

.section-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

/* ============================================
   INTERACTIVE FEATURES
   ============================================ */

.emboss-effect {
  position: relative;
  cursor: crosshair;
}

.emboss-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 77, 0, 0.1) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.emboss-effect:hover::after {
  opacity: 1;
}

/* ============================================
   FORMS
   ============================================ */

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-glass-border);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.checkbox-input {
  margin-top: 4px;
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  line-height: 1.5;
  cursor: pointer;
}

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-accent);
  color: var(--color-secondary);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  margin-top: 10px;
}

.btn:hover {
  color: white;
  background: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-secondary);
}

/* ============================================
   PRODUCTS
   ============================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.product-card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.product-info {
  padding: var(--space-lg);
}

.product-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
}

.product-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 700;
}

/* ============================================
   MAPS
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-xl);
  border: 1px solid var(--color-glass-border);
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-section h3 {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.footer-menu {
  list-style: none;
}

.footer-menu li {
  margin-bottom: var(--space-sm);
}

.footer-menu a {
  color: var(--color-secondary);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-contact {
  font-size: 0.875rem;
  line-height: 1.8;
}

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

/* ============================================
   PRIVACY POPUP
   ============================================ */

.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

.privacy-popup.active {
  transform: translateY(0);
}

.popup-content {
  margin-bottom: var(--space-md);
}

.popup-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.popup-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.popup-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.popup-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.75rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Desktop Navigation - Show horizontal menu, hide burger */
@media (min-width: 1024px) {
  .header-nav {
    display: block;
  }
  
  .burger-toggle {
    display: none;
  }
  
  .vertical-nav {
    display: none;
  }
  
  .nav-overlay {
    display: none;
  }
}

/* Mobile Navigation - Show burger, hide horizontal menu */
@media (max-width: 1023px) {
  .site-header {
    padding: 0 var(--space-md);
  }
  
  .header-nav {
    display: none;
  }
  
  .burger-toggle {
    display: flex;
  }
  
  .vertical-nav {
    width: 100%;
    max-width: 320px;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-md);
  }
  
  .content-section .section-grid {
    grid-template-columns: 1fr !important;
  }
  
  .section-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .privacy-popup {
    right: var(--space-md);
    left: var(--space-md);
    max-width: none;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
    --space-xl: 3rem;
    --space-xxl: 4rem;
  }
  
  .hero-banner {
    min-height: 40vh;
  }
  
  .banner-content {
    padding: var(--space-lg);
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
  }
  
  .site-header {
    padding: 0 var(--space-sm);
  }
  
  .brand-name {
    font-size: 1rem;
  }
  
  .hero-banner {
    min-height: 35vh;
  }
  
  .content-section {
    padding: var(--space-md) var(--space-sm);
  }
}

@media (max-width: 320px) {
  .hero-banner {
    min-height: 30vh;
  }
  
  .banner-content {
    padding: var(--space-md);
  }
  
  .contact-form {
    padding: var(--space-md);
  }
}

/* ============================================
   SPECIAL PAGE STYLES
   ============================================ */

.exploded-view {
  perspective: 1000px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xxl);
}

.book-3d {
  width: 300px;
  height: 400px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform var(--transition-slow);
}

.book-3d:hover {
  transform: rotateY(15deg) rotateX(5deg);
}

.book-part {
  position: absolute;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  backdrop-filter: blur(10px);
}

.paper-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.paper-card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.paper-spec {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

.portfolio-gallery {
  display: flex;
  overflow-x: auto;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.portfolio-item {
  flex: 0 0 300px;
  scroll-snap-align: start;
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.portfolio-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px var(--color-accent-glow);
  }
  50% {
    box-shadow: 0 0 40px var(--color-accent-glow);
  }
}

.glow-animation {
  animation: glow 2s ease-in-out infinite;
}