/* ============================================
   MONOLITHIC INTELLIGENCE DESIGN SYSTEM
   Personal Library Curation Platform
   ============================================ */

:root {
  /* Color Palette - The Living Codex */
  --inkwell-black: #020205;
  --epaper-white: #E6E6E6;
  --synapse-gold: #C1A35F;
  --glass-blue: #A5C9CA;
  --void-dark: #0a0a0f;
  --parchment-light: #f5f5f0;
  
  /* Typography */
  --font-primary: 'Lexend', sans-serif;
  --font-archive: 'Cutive Mono', monospace;
  
  /* Spacing System */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows & Effects */
  --shadow-soft: 0 2px 8px rgba(2, 2, 5, 0.1);
  --shadow-medium: 0 4px 16px rgba(2, 2, 5, 0.15);
  --shadow-strong: 0 8px 32px rgba(2, 2, 5, 0.2);
  --glow-gold: 0 0 20px rgba(193, 163, 95, 0.3);
  --glow-blue: 0 0 20px rgba(165, 201, 202, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --max-width: 1400px;
  --header-height: 80px;
}

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

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

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

body {
  font-family: var(--font-primary);
  background: var(--inkwell-black);
  color: var(--epaper-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 300;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

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

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

a:hover {
  color: var(--synapse-gold);
}

.archive-text {
  font-family: var(--font-archive);
  font-size: 0.875rem;
  color: var(--synapse-gold);
  opacity: 0.8;
}

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

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: rgba(2, 2, 5, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(165, 201, 202, 0.1);
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--header-height);
}

.brand-text {
  font-size: clamp(0.8rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--epaper-white);
}

.main-nav {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 15px;
  align-items: center;
}

.nav-link {
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.nav-link:hover {
  border-bottom-color: var(--synapse-gold);
}

/* Burger Menu */
.burger-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--glass-blue);
  width: 44px;
  height: 44px;
  cursor: pointer;
  position: relative;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
  transition: border-color var(--transition-fast);
}

.burger-toggle:hover {
  border-color: var(--synapse-gold);
}

.burger-line {
  width: 20px;
  height: 2px;
  background: var(--epaper-white);
  transition: all var(--transition-base);
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  background: rgba(2, 2, 5, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(165, 201, 202, 0.2);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  z-index: 999;
}

.mobile-nav.active {
  max-height: 400px;
}

.mobile-nav-list {
  list-style: none;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-md);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.9375rem;
}

.mobile-nav-link:hover {
  border-left-color: var(--synapse-gold);
  padding-left: var(--space-lg);
}

/* Responsive Navigation */
@media (max-width: 1023px) {
  .main-nav {
    display: none;
  }
  
  .burger-toggle {
    display: flex;
  }
}

@media (min-width: 1024px) {
  .mobile-nav {
    display: none;
  }
}

/* ============================================
   HERO BANNERS
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-3xl) var(--space-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--void-dark) 0%, var(--inkwell-black) 100%);
}

.hero-image-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.3;
  z-index: 1;
}

.hero-image-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(2, 2, 5, 0.8) 0%, rgba(10, 10, 15, 0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 200;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--epaper-white) 0%, var(--glass-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 10px rgba(2, 2, 5, 0.5);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--epaper-white);
  font-weight: 300;
  margin-bottom: var(--space-xl);
  text-shadow: 0 2px 8px rgba(2, 2, 5, 0.7);
}

/* Holographic Grid Background */
.holographic-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  background-image: 
    linear-gradient(rgba(165, 201, 202, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(165, 201, 202, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

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

.main-content {
  width: 100%;
}

.content-section {
  padding: var(--space-3xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  margin-bottom: var(--space-md);
  color: var(--epaper-white);
}

.section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--glass-blue);
  font-weight: 300;
  max-width: 700px;
  margin: 0 auto;
}

/* Grid Layouts */
.grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.grid-item {
  background: rgba(165, 201, 202, 0.05);
  border: 1px solid rgba(165, 201, 202, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.grid-item:hover {
  background: rgba(165, 201, 202, 0.1);
  border-color: var(--glass-blue);
  transform: translateY(-4px);
  box-shadow: var(--glow-blue);
}

/* Image Containers */
.image-wrapper {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: var(--space-lg) auto;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.content-image {
  width: 100%;
  height: auto;
  max-height: 500px;
  display: block;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.image-wrapper:hover .content-image {
  transform: scale(1.05);
}

/* ============================================
   BUTTONS & CTAs
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--glass-blue);
  background: transparent;
  color: var(--epaper-white);
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  margin-top: 10px;
}

.btn:hover {
  background: var(--glass-blue);
  color: var(--inkwell-black);
  box-shadow: var(--glow-blue);
}

.btn-primary {
  background: var(--synapse-gold);
  border-color: var(--synapse-gold);
  color: var(--inkwell-black);
}

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

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-section {
  padding: var(--space-3xl) var(--space-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.form-container {
  background: rgba(165, 201, 202, 0.05);
  border: 1px solid rgba(165, 201, 202, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--glass-blue);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(2, 2, 5, 0.5);
  border: 1px solid rgba(165, 201, 202, 0.2);
  border-radius: var(--radius-sm);
  color: var(--epaper-white);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--glass-blue);
  box-shadow: 0 0 0 3px rgba(165, 201, 202, 0.1);
}

.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;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--epaper-white);
}

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(165, 201, 202, 0.2);
  margin-top: var(--space-2xl);
}

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

.contact-info {
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  background: rgba(165, 201, 202, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(165, 201, 202, 0.1);
}

.contact-info-item {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.contact-info-label {
  color: var(--synapse-gold);
  font-weight: 500;
  margin-right: var(--space-sm);
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.product-card {
  background: rgba(165, 201, 202, 0.05);
  border: 1px solid rgba(165, 201, 202, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--synapse-gold);
  box-shadow: var(--glow-gold);
  transform: translateY(-4px);
}

.product-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--epaper-white);
}

.product-description {
  color: var(--glass-blue);
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.product-price {
  font-size: 1.5rem;
  color: var(--synapse-gold);
  font-weight: 500;
  margin-top: auto;
}

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

.site-footer {
  background: var(--void-dark);
  border-top: 1px solid rgba(165, 201, 202, 0.1);
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.footer-section {
  margin-bottom: var(--space-lg);
}

.footer-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  color: var(--synapse-gold);
}

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

.footer-nav-item {
  margin-bottom: var(--space-sm);
}

.footer-link {
  color: var(--glass-blue);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--synapse-gold);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(165, 201, 202, 0.1);
  margin-top: var(--space-lg);
  color: var(--glass-blue);
  font-size: 0.875rem;
}

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

.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(2, 2, 5, 0.98);
  border: 1px solid var(--glass-blue);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  max-width: 500px;
  width: calc(100% - var(--space-lg) * 2);
  z-index: 10000;
  box-shadow: var(--shadow-strong);
  display: none;
}

.privacy-popup.active {
  display: block;
}

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

.privacy-popup-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  color: var(--synapse-gold);
}

.privacy-popup-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--epaper-white);
  margin-bottom: var(--space-md);
}

.privacy-popup-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

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

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

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

@media (max-width: 768px) {
  :root {
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
  }
  
  .site-header {
    padding: var(--space-md);
  }
  
  .hero-banner {
    min-height: 50vh;
    padding: var(--space-2xl) var(--space-md);
  }
  
  .content-section {
    padding: var(--space-2xl) var(--space-md);
  }
  
  .grid-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .form-container {
    padding: var(--space-lg);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
  
  .privacy-popup {
    width: calc(100% - var(--space-md) * 2);
    padding: var(--space-md);
  }
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.floating {
  animation: float 6s ease-in-out infinite;
}

@keyframes scan {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.scan-line {
  position: relative;
  overflow: hidden;
}

.scan-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(165, 201, 202, 0.3), transparent);
  animation: scan 3s linear infinite;
}