/* ============================================
   LIQUID LABORATORY - DARK MODE & REFRACTIVE UI
   ============================================ */

:root {
  /* Color Palette */
  --color-midnight: #050505;
  --color-copper: #FF7F50;
  --color-chrome: #4A4A4A;
  --color-ice: #E0E0E0;
  --color-glass: rgba(255, 255, 255, 0.05);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --color-glass-hover: rgba(255, 127, 80, 0.1);
  
  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-mono: 'IBM Plex 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 */
  --blur-sm: blur(8px);
  --blur-md: blur(16px);
  --blur-lg: blur(24px);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(255, 127, 80, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Container */
  --container-max: 1400px;
  --container-padding: 1.5rem;
}

/* ============================================
   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);
  background-color: var(--color-midnight);
  color: var(--color-ice);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

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

/* ============================================
   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(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.section-content {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
  justify-items: center;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: relative;
  z-index: 1000;
  padding: var(--space-md) var(--container-padding);
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: var(--blur-md);
  border-bottom: 1px solid var(--color-glass-border);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  position: relative;
}

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

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

.nav-link {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
}

.nav-link:hover {
  background: var(--color-glass-hover);
  color: var(--color-copper);
}

.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 28px;
  height: 28px;
  z-index: 10001;
  justify-content: center;
  align-items: center;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  transition: all var(--transition-base);
  position: relative;
  margin-left: auto;
}

.burger-toggle:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-copper);
}

.burger-line {
  width: 20px;
  height: 2px;
  background: var(--color-ice);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.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(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(5, 5, 5, 0.98);
  backdrop-filter: var(--blur-lg);
  z-index: 10000;
  padding: var(--space-xxl) var(--container-padding);
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
}

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

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

.mobile-nav-link {
  font-size: 1.25rem;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  display: block;
  text-align: center;
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  background: var(--color-glass-hover);
  color: var(--color-copper);
  border-color: var(--color-copper);
}

@media (max-width: 1023px) {
  .nav-menu {
    display: none;
  }
  
  .burger-toggle {
    display: flex;
  }
  
  .mobile-nav {
    display: flex;
  }
}

/* ============================================
   HERO BANNER (FULL-WIDTH)
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(5, 5, 5, 0.7) 0%,
    rgba(5, 5, 5, 0.5) 50%,
    rgba(5, 5, 5, 0.8) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-ice) 0%, var(--color-copper) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-ice);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
}

/* ============================================
   SECTION BANNERS
   ============================================ */

.section-banner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto var(--space-xl);
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

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

.section-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(5, 5, 5, 0.8) 0%,
    rgba(5, 5, 5, 0.6) 100%
  );
  z-index: 2;
}

.section-banner-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-xl);
  width: 100%;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  justify-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.grid-three {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  justify-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.grid-four {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  justify-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.grid-item {
  background: var(--color-glass);
  backdrop-filter: var(--blur-md);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.grid-item:hover {
  border-color: var(--color-copper);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.grid-item-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.grid-item-title {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  margin-bottom: var(--space-sm);
  color: var(--color-copper);
}

.grid-item-text {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-ice);
  opacity: 0.8;
}

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

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border: 1px solid transparent;
  margin-top: 10px;
}

.btn-primary {
  background: var(--color-copper);
  color: var(--color-midnight);
  border-color: var(--color-copper);
}

.btn-primary:hover {
  background: var(--color-copper);
  color: black;
  border-color: var(--color-copper);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-copper);
  border-color: var(--color-copper);
}

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

/* ============================================
   MOOD GENERATOR
   ============================================ */

.mood-generator {
  background: var(--color-glass);
  backdrop-filter: var(--blur-lg);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

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

.mood-slider-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-ice);
}

.mood-slider {
  width: 100%;
  height: 6px;
  background: var(--color-chrome);
  border-radius: var(--radius-sm);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.mood-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-copper);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
}

.mood-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-copper);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-glow);
}

.mood-result {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: rgba(255, 127, 80, 0.1);
  border: 1px solid var(--color-copper);
  border-radius: var(--radius-md);
  text-align: center;
}

/* ============================================
   HORIZONTAL SCROLL
   ============================================ */

.horizontal-scroll {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  padding: var(--space-lg) 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-copper) var(--color-chrome);
}

.horizontal-scroll::-webkit-scrollbar {
  height: 8px;
}

.horizontal-scroll::-webkit-scrollbar-track {
  background: var(--color-chrome);
  border-radius: var(--radius-sm);
}

.horizontal-scroll::-webkit-scrollbar-thumb {
  background: var(--color-copper);
  border-radius: var(--radius-sm);
}

.horizontal-item {
  flex: 0 0 320px;
  scroll-snap-align: start;
  background: var(--color-glass);
  backdrop-filter: var(--blur-md);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.horizontal-item:hover {
  border-color: var(--color-copper);
  box-shadow: var(--shadow-glow);
}

/* ============================================
   REFRACTION CURSOR EFFECT
   ============================================ */

.refraction-target {
  position: relative;
  overflow: hidden;
  cursor: none;
}

.refraction-lens {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 10;
}

.refraction-target:hover .refraction-lens {
  opacity: 1;
}

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

.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;
  color: var(--color-ice);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-copper);
  box-shadow: 0 0 0 3px rgba(255, 127, 80, 0.2);
}

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

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

.form-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-copper);
}

.form-checkbox-label {
  font-size: 0.875rem;
  color: var(--color-ice);
  opacity: 0.8;
  line-height: 1.5;
}

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

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-glass-border);
  margin: var(--space-xl) 0;
}

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

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

.product-card {
  background: var(--color-glass);
  backdrop-filter: var(--blur-md);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  text-align: center;
}

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

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.product-title {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  margin-bottom: var(--space-sm);
  color: var(--color-copper);
}

.product-description {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-ice);
  opacity: 0.8;
  margin-bottom: var(--space-md);
}

.product-price {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--color-copper);
  font-weight: 700;
}

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

.site-footer {
  background: rgba(5, 5, 5, 0.9);
  backdrop-filter: var(--blur-md);
  border-top: 1px solid var(--color-glass-border);
  padding: var(--space-xl) 0;
  margin-top: var(--space-xxl);
}

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

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

.footer-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  font-size: 0.875rem;
  color: var(--color-ice);
  opacity: 0.7;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-copper);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-glass-border);
  font-size: 0.875rem;
  color: var(--color-ice);
  opacity: 0.6;
}

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

.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  max-width: 500px;
  background: var(--color-glass);
  backdrop-filter: var(--blur-lg);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  z-index: 10000;
  transform: translateY(150%);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-glass);
}

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

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

.privacy-popup-text {
  font-size: 0.875rem;
  color: var(--color-ice);
  opacity: 0.9;
  line-height: 1.6;
}

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

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

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

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

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

.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
   ============================================ */

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --space-xl: 3rem;
    --space-xxl: 4rem;
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
  
  .hero-banner {
    min-height: 60vh;
  }
  
  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .privacy-popup {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
  }
  
  .hero-content {
    padding: var(--space-md);
  }
  
  .mood-generator {
    padding: var(--space-md);
  }
}

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

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

.fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-copper);
  outline-offset: 2px;
}