/* ============================================
   ACOUSTIC LABORATORY - FUTURISTIC DESIGN
   Vinyl Record Cleaning & Care Service
   ============================================ */

:root {
  /* Color Palette - Acoustic Laboratory */
  --color-obsidian: #050505;
  --color-sonic-gold: #D4AF37;
  --color-isotope-blue: #00E5FF;
  --color-dark-gray: #1a1a1a;
  --color-light-gray: #2a2a2a;
  --color-text-primary: #e0e0e0;
  --color-text-secondary: #b0b0b0;
  --color-border: rgba(212, 175, 55, 0.2);
  
  /* Typography */
  --font-header: 'Playfair Display', serif;
  --font-body: 'Rajdhani', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Border & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-thin: 1px solid var(--color-border);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.3);
  --shadow-gold: 0 0 15px rgba(212, 175, 55, 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;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-obsidian);
  overflow-x: hidden;
}

/* Groove Background Animation */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(0, 229, 255, 0.03) 0%, transparent 70%);
  animation: groovePulse 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes groovePulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.05); }
}

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

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

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, var(--color-sonic-gold), var(--color-isotope-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--color-sonic-gold);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

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

a {
  color: var(--color-isotope-blue);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

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

.site-header {
  position: relative;
  width: 100%;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-thin);
  z-index: 1000;
  padding: var(--space-md) var(--space-lg);
}

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

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

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

.nav-menu a {
  color: var(--color-text-primary);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-base);
}

.nav-menu a:hover {
  color: var(--color-isotope-blue);
  border-bottom-color: var(--color-isotope-blue);
}

/* Burger Menu Button - Always Last in Header */
.burger-toggle {
  display: none;
  background: transparent;
  border: var(--border-thin);
  width: 44px;
  height: 44px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: var(--space-sm);
  transition: all var(--transition-base);
  order: 999;
  z-index: 1100001;
}

.burger-toggle:hover {
  border-color: var(--color-isotope-blue);
  box-shadow: var(--shadow-glow);
}

.burger-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-sonic-gold);
  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 Menu - Opens Separately */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(5, 5, 5, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: var(--border-thin);
  padding: var(--space-lg);
  z-index: 999;
  transform: translateY(-100%);
  transition: transform var(--transition-base);
}

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

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.mobile-nav-list a {
  display: block;
  color: var(--color-text-primary);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: var(--space-md);
  border-left: 3px solid transparent;
  transition: all var(--transition-base);
}

.mobile-nav-list a:hover {
  color: var(--color-isotope-blue);
  border-left-color: var(--color-isotope-blue);
  padding-left: var(--space-lg);
}

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

main {
  position: relative;
  z-index: 1;
}

/* ============================================
   FULL-WIDTH BANNER
   ============================================ */

.hero-banner {
  position: relative;
  width: 100vw;
  min-height: 70vh;
  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: 0;
  opacity: 0.35;
  filter: brightness(0.25) contrast(1.2);
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(5, 5, 5, 0.9) 0%, rgba(5, 5, 5, 0.75) 50%, rgba(0, 229, 255, 0.15) 100%);
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  width: 100%;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

.banner-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--space-lg);
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
}

.banner-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
}

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

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

.content-section .section-title {
  text-align: center;
}

.content-section .two-column > div {
  text-align: left;
}

.content-section .grid-item {
  text-align: left;
}

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

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-sonic-gold), transparent);
}

/* Grid Layouts */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  justify-items: center;
}

.grid-item {
  background: rgba(26, 26, 26, 0.6);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
  max-width: 100%;
  width: 100%;
}

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

.grid-item-image {
  width: 100%;
  max-width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  opacity: 0.8;
  transition: opacity var(--transition-base);
}

.grid-item:hover .grid-item-image {
  opacity: 1;
}

.grid-item-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-sonic-gold);
}

.grid-item-text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.two-column-image {
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: var(--border-thin);
  box-shadow: var(--shadow-md);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  border: 2px solid var(--color-isotope-blue);
  color: var(--color-isotope-blue);
  font-family: var(--font-body);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 10px;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  border-radius: var(--radius-sm);
}

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

.btn-gold {
  border-color: var(--color-sonic-gold);
  color: var(--color-sonic-gold);
}

.btn-gold:hover {
  background: var(--color-sonic-gold);
  color: var(--color-obsidian);
  box-shadow: var(--shadow-gold);
}

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

.contact-form {
  max-width: 600px;
  margin: var(--space-xl) auto;
  background: rgba(26, 26, 26, 0.6);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: var(--border-thin);
  backdrop-filter: blur(10px);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-sonic-gold);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(5, 5, 5, 0.8);
  border: var(--border-thin);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-isotope-blue);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

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

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

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

.checkbox-group label {
  margin-bottom: 0;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

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

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

.product-card {
  background: rgba(26, 26, 26, 0.6);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

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

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

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

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-isotope-blue);
  margin-top: var(--space-md);
}

/* ============================================
   MAP
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  margin: var(--space-xl) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--border-thin);
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(20%) contrast(1.1);
}

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

.site-footer {
  background: rgba(5, 5, 5, 0.95);
  border-top: var(--border-thin);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

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

.footer-section h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--color-sonic-gold);
}

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

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

.footer-menu a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-base);
}

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

.footer-contact {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-copyright {
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: var(--border-thin);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

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

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

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

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

.highlight {
  color: var(--color-isotope-blue);
}

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

@media (max-width: 1023px) {
  .nav-menu {
    display: none;
  }
  
  .burger-toggle {
    display: flex;
  }
  
  .mobile-nav {
    display: block;
  }
  
  .header-container {
    flex-wrap: wrap;
  }
  
  .brand-name {
    flex: 1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 2rem;
    --space-xxl: 3rem;
  }
  
  .hero-banner {
    min-height: 60vh;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  .two-column {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-md);
  }
  
  .banner-content {
    padding: var(--space-lg) var(--space-md);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 14px;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
}

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

.privacy-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 5, 5, 0.95);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

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

.popup-content {
  background: rgba(26, 26, 26, 0.98);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.popup-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: transparent;
  border: var(--border-thin);
  color: var(--color-text-primary);
  width: 36px;
  height: 36px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.popup-close:hover {
  border-color: var(--color-isotope-blue);
  color: var(--color-isotope-blue);
}

/* ============================================
   THANK YOU & 404 PAGES
   ============================================ */

.page-message {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xxl) var(--space-lg);
}

.message-content {
  max-width: 600px;
}

.message-content h1 {
  margin-bottom: var(--space-lg);
}

.message-content p {
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
}

/* ============================================
   LEGAL PAGES STYLING
   ============================================ */

.legal-content {
  max-width: 900px;
  margin: var(--space-xl) auto;
  padding: var(--space-xl);
  background: rgba(26, 26, 26, 0.4);
  border-radius: var(--radius-md);
  border: var(--border-thin);
}

.legal-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.legal-content h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.3rem;
}

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

.legal-content ul {
  margin-left: var(--space-lg);
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

.legal-content li {
  margin-bottom: var(--space-sm);
}

.date {
  color: var(--color-isotope-blue);
  font-style: italic;
  margin-top: var(--space-lg);
}