/* ============================================
   VOLT-MINIMALISM DESIGN SYSTEM
   Dark Mode Energy Optimization Theme
   ============================================ */

:root {
  /* Color Palette - Energy Optimized */
  --color-vacuum: #020205;
  --color-circuit: #1A1A1D;
  --color-cyan: #00F2FF;
  --color-amber: #FF8A00;
  --color-white: #FFFFFF;
  --color-grey-light: #E5E5E5;
  --color-grey-medium: #8E8E93;
  --color-grey-dark: #3A3A3C;
  
  /* Typography */
  --font-segmented: 'Share Tech Mono', monospace;
  --font-wide: 'Michroma', sans-serif;
  --font-body: 'Inter', 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: 16px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-glow-cyan: 0 0 20px rgba(0, 242, 255, 0.3);
  --shadow-glow-amber: 0 0 20px rgba(255, 138, 0, 0.3);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* ============================================
   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);
  background-color: var(--color-vacuum);
  color: var(--color-grey-light);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Circuit Path Background Animation */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(90deg, transparent 0%, rgba(0, 242, 255, 0.03) 50%, transparent 100%),
    linear-gradient(0deg, transparent 0%, rgba(0, 242, 255, 0.02) 50%, transparent 100%);
  background-size: 200px 200px, 150px 150px;
  background-position: 0 0, 50px 50px;
  pointer-events: none;
  z-index: 0;
  animation: circuitPulse 8s ease-in-out infinite;
}

@keyframes circuitPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-wide);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

h1 {
  font-size: clamp(1.4rem, 4vw, 3rem);
  letter-spacing: 0.05em;
}

h2 {
  font-size: clamp(1.2rem, 2vw, 2rem);
  letter-spacing: 0.03em;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.575rem, 1vw, 1rem);
}

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

a:hover {
  color: var(--color-white);
  text-shadow: 0 0 10px rgba(0, 242, 255, 0.5);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

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

.site-header {
  position: relative;
  z-index: 100;
  background: rgba(2, 2, 5, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 242, 255, 0.1);
  padding: var(--space-md) 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.brand-text {
  font-family: var(--font-wide);
  font-size: clamp(0.7rem, 2vw, 1.45rem);
  color: var(--color-cyan);

  text-shadow: 0 0 10px rgba(0, 242, 255, 0.5);
}

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

.nav-link {
  font-family: var(--font-segmented);
  font-size: 0.875rem;
  color: var(--color-grey-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-cyan);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

/* Burger Menu */
.burger-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-cyan);
  color: var(--color-cyan);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-family: var(--font-segmented);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  position: relative;
  z-index: 10001;
}

.burger-toggle:hover {
  background: rgba(0, 242, 255, 0.1);
  box-shadow: var(--shadow-glow-cyan);
}

.burger-toggle.active {
  background: var(--color-cyan);
  color: var(--color-vacuum);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(26, 26, 29, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xxl) var(--space-lg);
    gap: var(--space-lg);
    border-left: 1px solid rgba(0, 242, 255, 0.2);
    transition: right var(--transition-base);
    z-index: 100;
    overflow-y: auto;
  }

  .nav-menu.active {
    right: 0;
  }

  .burger-toggle {
    display: block;
  }

  .nav-link {
    font-size: 1rem;
    width: 100%;
    padding: var(--space-sm) 0;
  }
}

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

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

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xxl) var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-cyan), var(--color-white));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(0, 242, 255, 0.5);
}

.hero-text {
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  color: var(--color-grey-light);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.hero-image {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-top: var(--space-xl);
  border: 1px solid rgba(0, 242, 255, 0.2);
  box-shadow: var(--shadow-glow-cyan);
}

/* ============================================
   CARDS & GLASSMORPHISM
   ============================================ */

.card {
  background: rgba(26, 26, 29, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 242, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(0, 242, 255, 0.3);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-4px);
}

.card-title {
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
  font-family: var(--font-wide);
}

.card-text {
  color: var(--color-grey-light);
  line-height: 1.7;
}

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

.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

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

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

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

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-segmented);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-cyan);
  background: transparent;
  color: var(--color-cyan);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border-radius: var(--radius-sm);
  margin-top: 10px;
}

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

.btn-primary {
  background: var(--color-cyan);
  color: var(--color-vacuum);
}

.btn-primary:hover {
  background: var(--color-white);
  border-color: var(--color-white);
}

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

.btn-amber:hover {
  background: var(--color-amber);
  color: var(--color-vacuum);
  box-shadow: var(--shadow-glow-amber);
}

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

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

.form-label {
  display: block;
  font-family: var(--font-segmented);
  font-size: 0.875rem;
  color: var(--color-cyan);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(26, 26, 29, 0.8);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-white);
  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-cyan);
  box-shadow: 0 0 0 3px rgba(0, 242, 255, 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-md);
}

.checkbox-input {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-cyan);
}

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

/* ============================================
   ENERGY CALCULATOR
   ============================================ */

.calculator-container {
  background: rgba(26, 26, 29, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
}

.calculator-input-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.calculator-result {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: rgba(0, 242, 255, 0.05);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: var(--radius-md);
  font-family: var(--font-segmented);
}

.energy-visual {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.2), rgba(0, 242, 255, 0.2));
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-segmented);
  font-size: 1.5rem;
  color: var(--color-cyan);
  position: relative;
  overflow: hidden;
}

/* ============================================
   PRODUCT CARDS
   ============================================ */

.product-card {
  background: rgba(26, 26, 29, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 242, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.product-card:hover {
  border-color: rgba(0, 242, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.product-title {
  color: var(--color-cyan);
  font-family: var(--font-wide);
  margin-bottom: var(--space-md);
}

.product-price {
  font-family: var(--font-segmented);
  font-size: 1.5rem;
  color: var(--color-amber);
  margin: var(--space-md) 0;
}

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

.site-footer {
  background: rgba(2, 2, 5, 0.9);
  border-top: 1px solid rgba(0, 242, 255, 0.1);
  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-lg);
  margin-bottom: var(--space-lg);
}

.footer-section h3 {
  font-family: var(--font-wide);
  font-size: 1rem;
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

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

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

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(0, 242, 255, 0.1);
  font-size: 0.875rem;
  color: var(--color-grey-medium);
  font-family: var(--font-segmented);
}

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

.privacy-popup {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  background: rgba(26, 26, 29, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 242, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  z-index: 1000;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

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

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

.privacy-popup-content h3 {
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
}

.privacy-popup-content p {
  font-size: 0.875rem;
  line-height: 1.6;
}

.footer-contact-text {
  font-size: 0.875rem;
  color: var(--color-grey-light);
  line-height: 1.8;
}

.card-centered {
  max-width: 900px;
  margin: 0 auto;
}

.card-narrow {
  max-width: 600px;
  margin: 0 auto;
}

.section-centered {
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.icon-large {
  font-size: 4rem;
  color: var(--color-cyan);
  margin-bottom: var(--space-lg);
}

.icon-medium {
  font-size: 2rem;
  color: var(--color-cyan);
  margin-bottom: var(--space-md);
}

.policy-list {
  margin-left: 2rem;
  margin-bottom: var(--space-md);
  color: var(--color-grey-light);
}

.policy-list li {
  margin-bottom: var(--space-sm);
}

.error-code {
  font-size: 6rem;
  font-family: var(--font-segmented);
}

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

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

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 242, 255, 0.2);
  margin: var(--space-lg) 0;
}

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

/* ============================================
   IMAGE STYLES
   ============================================ */

.responsive-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 242, 255, 0.2);
}

.responsive-image-large {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 242, 255, 0.2);
  margin: var(--space-xl) auto;
  display: block;
}

.responsive-image-medium {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 242, 255, 0.2);
  margin: var(--space-xl) auto;
  display: block;
}

.section-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

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

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

.text-cyan {
  color: var(--color-cyan);
}

.text-amber {
  color: var(--color-amber);
}

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

@media (max-width: 768px) {
  .hero-banner {
    min-height: 50vh;
  }

  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }

  .calculator-input-group {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .privacy-popup {
    left: var(--space-sm);
    right: var(--space-sm);
  }
}

@media (max-width: 320px) {
  .container {
    padding: 0 var(--space-sm);
  }

  .section {
    padding: var(--space-lg) 0;
  }
}

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

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

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* Energy Saver Toggle */
.energy-toggle-container {
  position: fixed;
  top: 80px;
  right: var(--space-md);
  z-index: 99;
  background: rgba(26, 26, 29, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 242, 255, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-segmented);
  font-size: 0.75rem;
  color: var(--color-grey-light);
}

.energy-toggle-switch {
  width: 40px;
  height: 20px;
  background: var(--color-grey-dark);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-base);
}

.energy-toggle-switch.active {
  background: var(--color-cyan);
}

.energy-toggle-switch::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--color-white);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform var(--transition-base);
}

.energy-toggle-switch.active::after {
  transform: translateX(20px);
}

body.energy-saver-mode {
  filter: brightness(0.7);
}

body.energy-saver-mode * {
  animation: none !important;
}