/* ============================================
   MACRAMÉ & FIBER ART - FUTURISTIC DESIGN
   Linear Minimalism & Parallax Depth
   ============================================ */

:root {
  /* Color Palette - Industrial Fiber */
  --color-base: #0B0B0B;
  --color-base-alt: #2F353B;
  --color-primary: #B87333;
  --color-primary-alt: #4B0082;
  --color-highlight: #F9F6F2;
  --color-text: #E8E8E8;
  --color-text-muted: #A0A0A0;
  
  /* Typography */
  --font-header: 'Tenor Sans', 'Syncopate', sans-serif;
  --font-body: 'Space Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-thin: 1px solid rgba(184, 115, 51, 0.2);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index layers */
  --z-base: 1;
  --z-header: 100;
  --z-overlay: 200;
  --z-modal: 300;
}

/* ============================================
   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-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-base);
  overflow-x: hidden;
  position: relative;
}

/* Fine Line Art Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(90deg, transparent 0%, rgba(184, 115, 51, 0.03) 50%, transparent 100%),
    linear-gradient(0deg, transparent 0%, rgba(75, 0, 130, 0.02) 50%, transparent 100%);
  background-size: 200px 200px, 150px 150px;
  background-position: 0 0, 50px 50px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-highlight);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}

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

h2 {
  font-size: clamp(1.3rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1rem, 2vw, 1.2rem);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

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

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

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

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: rgba(11, 11, 11, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-thin);
  z-index: var(--z-header);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
}

.brand-name {
  font-family: var(--font-header);
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  color: var(--color-highlight);
  text-transform: uppercase;
}

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

.main-nav a {
  color: var(--color-text);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  position: relative;
  transition: color var(--transition-fast);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  transition: transform var(--transition-base);
}

.main-nav a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

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

/* Burger Menu Button */
.burger-toggle {
  display: none;
  background: transparent;
  border: var(--border-thin);
  padding: var(--space-sm);
  cursor: pointer;
  width: 40px;
  height: 40px;
  position: relative;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: border-color var(--transition-fast);
  order: 2;
  margin-left: auto;
}

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

.burger-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-highlight);
  transition: all var(--transition-base);
}

.burger-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}


/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: rgba(11, 11, 11, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xxl) var(--space-lg);
    gap: var(--space-md);
    border-left: var(--border-thin);
    transition: right var(--transition-base);
    z-index: var(--z-overlay);
    align-items: flex-start;
    justify-content: flex-start;
    padding-top: 100px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .main-nav a {
    width: 100%;
    padding: var(--space-md);
    border-bottom: var(--border-thin);
  }
  
  .site-header {
    position: relative;
  }
}

/* ============================================
   HERO BANNERS (Full-Width)
   ============================================ */

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

.hero-banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: var(--z-base);
  filter: grayscale(20%) contrast(1.1);
}

.hero-content {
  position: relative;
  z-index: calc(var(--z-base) + 1);
  text-align: center;
  padding: var(--space-xxl) var(--space-lg);
  max-width: 1200px;
  background: rgba(11, 11, 11, 0.6);
  backdrop-filter: blur(10px);
  border: var(--border-thin);
  margin: var(--space-lg);
}

.hero-content h1 {
  margin-bottom: var(--space-lg);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.hero-content p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text);
  max-width: 800px;
  margin: 0 auto;
}

/* ============================================
   MAIN CONTENT & SECTIONS
   ============================================ */

main {
  position: relative;
  z-index: var(--z-base);
  padding: var(--space-xxl) 0;
  width: 100%;
}

.content-section {
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl) var(--space-lg);
  position: relative;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.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;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

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

/* Grid Layouts */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(225px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.grid-item {
  background: rgba(47, 53, 59, 0.3);
  border: var(--border-thin);
  padding: var(--space-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.grid-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(184, 115, 51, 0.1), transparent);
  transition: left var(--transition-slow);
}

.grid-item:hover::before {
  left: 100%;
}

.grid-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.grid-item-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  margin-bottom: var(--space-md);
  filter: grayscale(30%);
  transition: filter var(--transition-base);
  border-radius: var(--radius-sm);
}

.grid-item:hover .grid-item-image {
  filter: grayscale(0%);
}

/* ============================================
   PATTERN-SCRIPT GENERATOR
   ============================================ */

.pattern-generator {
  background: rgba(47, 53, 59, 0.2);
  border: var(--border-thin);
  padding: var(--space-xl);
  margin: var(--space-xxl) 0;
}

.generator-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.control-group label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.control-group input[type="range"] {
  width: 100%;
  height: 4px;
  background: rgba(184, 115, 51, 0.2);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--color-primary-alt);
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  cursor: pointer;
  border-radius: 50%;
  border: none;
}

.control-value {
  color: var(--color-primary);
  font-weight: bold;
}

.knot-visualizer {
  width: 100%;
  height: 400px;
  background: rgba(11, 11, 11, 0.5);
  border: var(--border-thin);
  position: relative;
  overflow: hidden;
}

.knot-canvas {
  width: 100%;
  height: 100%;
}

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

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-xl);
  background: rgba(47, 53, 59, 0.3);
  border: var(--border-thin);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(11, 11, 11, 0.5);
  border: var(--border-thin);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(184, 115, 51, 0.1);
}

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

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

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 4px;
  cursor: pointer;
}

.checkbox-group label {
  font-size: 0.85rem;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
}

.submit-button {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-header);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  margin-top: 10px;
  overflow: hidden;
}

.submit-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--color-primary);
  transition: left var(--transition-base);
  z-index: -1;
}

.submit-button:hover {
  color: var(--color-base);
  border-color: var(--color-primary);
}

.submit-button:hover::before {
  left: 0;
}

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

.map-container {
  width: 100%;
  height: 400px;
  margin: var(--space-xl) 0;
  border: var(--border-thin);
  overflow: hidden;
}
.grid-item p{font-size: 0.8rem}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(30%) contrast(1.1);
}

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

.site-footer {
  margin-top: var(--space-xxl);
  padding: var(--space-xl) var(--space-lg);
  background: rgba(11, 11, 11, 0.9);
  border-top: var(--border-thin);
  text-align: center;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  list-style: none;
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

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

.footer-info {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: var(--space-md);
}

/* ============================================
   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); }

/* ============================================
   PARALLAX EFFECTS
   ============================================ */

.parallax-layer {
  position: relative;
  will-change: transform;
}

.parallax-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120%;
  opacity: 0.1;
  background-size: cover;
  background-position: center;
  will-change: transform;
}

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

@media (max-width: 768px) {
  .site-header {
    padding: var(--space-md);
  }
  
  main {
    padding: var(--space-lg) var(--space-md);
  }
  
  .hero-content {
    padding: var(--space-lg) var(--space-md);
    margin: var(--space-md);
  }
  
  .grid-container {
    gap: var(--space-md);
  }
  
  .generator-controls {
    grid-template-columns: 1fr;
  }
  
  .knot-visualizer {
    height: 300px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .contact-form {
    padding: var(--space-md);
  }
}

/* ============================================
   SVG PATH ANIMATIONS (Tension Hover)
   ============================================ */

.tension-hover {
  transition: transform var(--transition-base);
  cursor: pointer;
}

.tension-hover:hover {
  transform: scale(1.02);
}

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

.product-card {
  background: rgba(47, 53, 59, 0.3);
  border: var(--border-thin);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

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

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  margin-bottom: var(--space-md);
  filter: grayscale(20%);
  transition: filter var(--transition-base);
}

.product-card:hover .product-image {
  filter: grayscale(0%);
}

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

.product-price {
  font-size: 1.25rem;
  color: var(--color-primary);
  font-weight: bold;
  margin-top: var(--space-md);
}

/* ============================================
   RADAR CHART CONTAINER
   ============================================ */

.radar-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.radar-chart {
  width: 100%;
  height: 300px;
  background: rgba(11, 11, 11, 0.5);
  border: var(--border-thin);
  position: relative;
}

/* ============================================
   KNOT LIBRARY STYLES
   ============================================ */

.knot-diagram {
  width: 100%;
  max-width: 400px;
  height: auto;
  margin: var(--space-lg) auto;
  display: block;
  filter: drop-shadow(0 4px 8px rgba(184, 115, 51, 0.3));
}

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

.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  max-width: 500px;
  background: rgba(11, 11, 11, 0.95);
  border: var(--border-thin);
  padding: var(--space-lg);
  z-index: var(--z-modal);
  backdrop-filter: blur(20px);
  display: none;
}

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

.privacy-popup p {
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
}

.privacy-buttons {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.privacy-button {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: var(--border-thin);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.privacy-button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.privacy-button.accept {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.privacy-button.accept:hover {
  background: var(--color-primary);
  color: var(--color-base);
}