/* ============================================
   VINYL RECORD MAINTENANCE - FUTURISTIC THEME
   "The Groove Archive" - Hi-Fi Minimalism
   ============================================ */

:root {
  /* Color Palette */
  --color-vinyl-black: #0A0A0B;
  --color-brushed-aluminum: #A8A9AD;
  --color-inner-sleeve-cream: #F5F5DC;
  --color-neon-stylus-red: #FF003C;
  --color-text-primary: #F5F5DC;
  --color-text-secondary: #A8A9AD;
  --color-overlay-dark: rgba(10, 10, 11, 0.85);
  --color-overlay-light: rgba(245, 245, 220, 0.1);
  
  /* Typography */
  --font-primary: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Border & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 50%;
  
  /* 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);
  --shadow-neon: 0 0 20px rgba(255, 0, 60, 0.4);
  
  /* 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;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

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

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

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

a:hover {
  color: var(--color-neon-stylus-red);
}

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

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

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

h1 {
  font-size: clamp(1.4rem, 4vw, 3rem);
}

h2 {
  font-size: clamp(1.2rem, 3vw, 2rem);
}

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

p {
  margin-bottom: var(--space-sm);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
}

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

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-md);
  background: var(--color-overlay-dark);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-brushed-aluminum);
  z-index: 1000;
  transition: transform var(--transition-base);
}

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

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

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

.nav-link {
  font-size: clamp(0.875rem, 2vw, 1rem);
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-base);
}

.nav-link:hover {
  border-bottom-color: var(--color-neon-stylus-red);
}

.burger-button {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  background: transparent;
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-sm);
  width: 40px;
  height: 40px;
  z-index: 101;
  position: relative;
  justify-content: center;
  align-items: center;
  transition: all var(--transition-base);
}

.burger-button:hover {
  border-color: var(--color-neon-stylus-red);
  box-shadow: var(--shadow-neon);
}

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

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

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

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

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--color-overlay-dark);
  backdrop-filter: blur(20px);
  padding: var(--space-xl) var(--space-md);
  flex-direction: column;
  gap: var(--space-md);
  list-style: none;
  z-index: 9999;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.mobile-menu.active {
  display: flex;
  transform: translateX(0);
}

.mobile-menu .nav-link {
  padding: var(--space-sm);
  border-left: 3px solid transparent;
  border-bottom: none;
}

.mobile-menu .nav-link:hover {
  border-left-color: var(--color-neon-stylus-red);
  border-bottom-color: transparent;
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10002;
}

.mobile-menu-close:hover {
  border-color: var(--color-neon-stylus-red);
  color: var(--color-neon-stylus-red);
  box-shadow: var(--shadow-neon);
}

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

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

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 11, 0.7) 0%,
    rgba(10, 10, 11, 0.9) 100%
  );
  z-index: 2;
}

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

.banner-title {
  font-size: clamp(1.4rem, 4vw, 3rem);
  margin-bottom: var(--space-md);
  text-shadow: 0 0 30px rgba(255, 0, 60, 0.3);
}

.banner-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

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

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

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: var(--color-neon-stylus-red);
  box-shadow: var(--shadow-neon);
}

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

.grid-container {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: var(--space-lg);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.grid-item {
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

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

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

.grid-item:hover .grid-item-image {
  transform: rotate(2deg) scale(1.05);
}

.grid-item-title {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}

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

/* ============================================
   AUDIO VISUALIZER (Sonic Scratches)
   ============================================ */

.audio-visualizer-container {
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.visualizer-title {
  text-align: center;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.visualizer-slider-container {
  position: relative;
  margin: var(--space-lg) 0;
}

.visualizer-slider {
  width: 100%;
  height: 8px;
  background: var(--color-brushed-aluminum);
  border-radius: var(--radius-full);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.visualizer-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  background: var(--color-neon-stylus-red);
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-neon);
  transition: all var(--transition-base);
}

.visualizer-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.visualizer-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--color-neon-stylus-red);
  border-radius: var(--radius-full);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-neon);
  transition: all var(--transition-base);
}

.visualizer-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
}

.visualizer-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
}

.visualizer-waveform {
  width: 100%;
  height: 150px;
  background: var(--color-vinyl-black);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  position: relative;
  overflow: hidden;
}

.waveform-bar {
  position: absolute;
  bottom: 0;
  width: 4px;
  background: var(--color-neon-stylus-red);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: height var(--transition-fast);
  box-shadow: 0 0 10px rgba(255, 0, 60, 0.5);
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.product-card {
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 0, 60, 0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card:hover {
  transform: translateY(-10px) rotate(1deg);
  border-color: var(--color-neon-stylus-red);
  box-shadow: var(--shadow-neon);
}

.product-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image {
  transform: scale(1.1) rotate(3deg);
}

.product-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
}

.product-price {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-neon-stylus-red);
  font-weight: 700;
  text-shadow: var(--shadow-neon);
}

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

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.contact-form {
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  background: var(--color-vinyl-black);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-neon-stylus-red);
  box-shadow: 0 0 10px rgba(255, 0, 60, 0.3);
}

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

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

.checkbox-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-label {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.submit-button {
  width: 100%;
  padding: var(--space-md);
  background: var(--color-neon-stylus-red);
  color: var(--color-vinyl-black);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 10px;
}

.submit-button:hover {
  transform: translateY(-2px);
  color: black;
  box-shadow: var(--shadow-neon);
}

.contact-info {
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.info-item {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-brushed-aluminum);
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  font-family: var(--font-mono);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.info-value {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-primary);
}

.map-container {
  margin-top: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-brushed-aluminum);
}

.map-iframe {
  width: 100%;
  height: 400px;
  border: none;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-lg);
  background: var(--color-overlay-light);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-brushed-aluminum);
}

.comparison-table th {
  background: var(--color-vinyl-black);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-neon-stylus-red);
  text-transform: uppercase;
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  letter-spacing: 0.05em;
}

.comparison-table td {
  color: var(--color-text-secondary);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
}

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

.comparison-table tr:hover {
  background: rgba(255, 0, 60, 0.05);
}

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

.site-footer {
  background: var(--color-overlay-dark);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-brushed-aluminum);
  padding: var(--space-lg) var(--space-md);
  margin-top: var(--space-xl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-lg);
}

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

.footer-title {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-neon-stylus-red);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-link {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  transition: all var(--transition-base);
}

.footer-link:hover {
  color: var(--color-neon-stylus-red);
  padding-left: var(--space-xs);
}

.footer-text {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
  text-align: center;
  grid-column: 1 / -1;
}

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

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

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

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

.date {
  font-family: var(--font-mono);
  color: var(--color-text-secondary);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
}

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

.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  max-width: 600px;
  background: var(--color-overlay-dark);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  z-index: 10000;
  box-shadow: var(--shadow-lg);
}

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

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

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

.privacy-button {
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-brushed-aluminum);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
}

.privacy-button:hover {
  border-color: var(--color-neon-stylus-red);
  color: var(--color-neon-stylus-red);
}

.privacy-button.accept {
  background: var(--color-neon-stylus-red);
  color: var(--color-vinyl-black);
  border-color: var(--color-neon-stylus-red);
}

.privacy-button.accept:hover {
  box-shadow: var(--shadow-neon);
}

/* ============================================
   THANK YOU PAGE
   ============================================ */

.thank-you-container {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.thank-you-icon {
  font-size: clamp(4rem, 8vw, 6rem);
  color: var(--color-neon-stylus-red);
  margin-bottom: var(--space-md);
  text-shadow: var(--shadow-neon);
}

.thank-you-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: var(--space-md);
}

.thank-you-message {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

/* ============================================
   404 PAGE
   ============================================ */

.error-container {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.error-code {
  font-size: clamp(6rem, 12vw, 10rem);
  font-family: var(--font-mono);
  color: var(--color-neon-stylus-red);
  text-shadow: var(--shadow-neon);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--space-md);
}

.error-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

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

@media (max-width: 1023px) {
  .nav-menu {
    display: none;
  }
  
  .burger-button {
    display: flex;
  }
  
  .mobile-menu .nav-link {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    padding: var(--space-md);
    border-left: 3px solid transparent;
    border-bottom: none;
    text-align: left;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 768px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 4rem;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .comparison-table {
    font-size: 0.875rem;
  }
  
  .comparison-table th,
  .comparison-table td {
    padding: var(--space-sm);
  }
  
  .privacy-popup {
    left: var(--space-sm);
    right: var(--space-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
  }
  
  .header-container {
    padding: var(--space-sm) 0;
  }
  
  .banner-content {
    padding: var(--space-md) var(--space-sm);
  }
  
  main {
    padding: var(--space-md) var(--space-sm);
  }
  
  .content-section {
    padding: var(--space-md) 0;
  }
  
  .audio-visualizer-container {
    padding: var(--space-md);
  }
  
  .contact-form,
  .contact-info {
    padding: var(--space-md);
  }
}

@media (max-width: 320px) {
  :root {
    --space-sm: 0.75rem;
    --space-md: 1rem;
  }
  
  .grid-item,
  .product-card {
    padding: var(--space-sm);
  }
}

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

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.rotating-element {
  animation: rotate 20s linear infinite;
}

.pulsing-element {
  animation: pulse 2s ease-in-out infinite;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-vinyl-black);
}

::-webkit-scrollbar-thumb {
  background: var(--color-brushed-aluminum);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neon-stylus-red);
}