/* ============================================
   HIGH-HEAT ENGINEERING & MOLTEN LUXURY DESIGN
   ============================================ */

:root {
  /* Color System */
  --color-obsidian: #121212;
  --color-plasma: #FF3D00;
  --color-mercury: #E5E7EB;
  --color-mercury-dark: #9CA3AF;
  --color-overlay: rgba(18, 18, 18, 0.85);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Layout */
  --container-max: 1280px;
  --section-padding: 5rem 1.5rem;
  
  /* Effects */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 0 20px rgba(255, 61, 0, 0.3);
  --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-obsidian);
  color: var(--color-mercury);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

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

p {
  margin-bottom: var(--space-sm);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--color-mercury-dark);
}

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

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

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

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

.section {
  padding: var(--section-padding);
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.section-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.site-header {
  position: relative;
  padding: var(--space-md) 0;
  background: var(--color-obsidian);
  border-bottom: 1px solid rgba(255, 61, 0, 0.1);
  z-index: 1000;
}

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

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

.nav-menu {
  display: flex;
  gap: 25px;
  list-style: none;
  align-items: center;
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--color-mercury-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-plasma);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-mercury);
}

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

.burger-button {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--color-mercury);
  font-size: 1.5rem;
  z-index: 1001;
  transition: color var(--transition-base);
  position: relative;
  order: 2;
}

.burger-button:hover {
  color: var(--color-plasma);
}

.burger-button.active {
  color: var(--color-plasma);
}

/* ============================================
   BURGER MENU (Mobile)
   ============================================ */

.menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.menu-overlay.active {
  display: block;
  opacity: 1;
}

@media (max-width: 1023px) {
  .burger-button {
    display: block;
  }
  
  .header-container nav {
    position: static;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    background: var(--color-obsidian);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem var(--space-md) var(--space-md);
    gap: var(--space-md);
    border-left: 1px solid rgba(255, 61, 0, 0.2);
    transition: right var(--transition-slow);
    z-index: 1000;
    overflow-y: auto;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.125rem;
    width: 100%;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(255, 61, 0, 0.1);
  }
}

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

.hero-image {
  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(
    180deg,
    rgba(18, 18, 18, 0.7) 0%,
    rgba(18, 18, 18, 0.9) 100%
  );
  z-index: 2;
}

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

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: var(--space-md);
  text-shadow: 0 0 30px rgba(255, 61, 0, 0.5);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--color-mercury-dark);
  max-width: 700px;
  margin: 0 auto;
}

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

.section-banner {
  position: relative;
  width: 100%;
  max-width: 1200px;
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin: var(--space-lg) auto;
}

.section-banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.35;
}

.section-banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(18, 18, 18, 0.8) 0%,
    rgba(18, 18, 18, 0.95) 100%
  );
  z-index: 2;
}

.section-banner-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-lg);
  max-width: 800px;
}

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

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

.content-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 61, 0, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.card-image {
  width: 100%;
  max-width: 400px;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  opacity: 0.8;
  transition: opacity var(--transition-base);
}

.content-card:hover .card-image {
  opacity: 1;
}

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

.card-text {
  color: var(--color-mercury-dark);
  font-size: 0.9375rem;
}

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

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: 2px solid var(--color-plasma);
  color: var(--color-plasma);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  border-radius: var(--radius-sm);
  margin-top: 10px;
}

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

.btn-primary {
  background: var(--color-plasma);
  color: var(--color-obsidian);
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-plasma);
}

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

.form-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-lg);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-mercury);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 61, 0, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-mercury);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-plasma);
  box-shadow: 0 0 0 3px rgba(255, 61, 0, 0.1);
}

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

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin: var(--space-md) 0;
}

.checkbox-input {
  margin-top: 4px;
  cursor: pointer;
}

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

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

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

.product-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 61, 0, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  transition: all var(--transition-base);
}

.product-card:hover {
  border-color: var(--color-plasma);
  box-shadow: var(--shadow-glow);
}

.product-image {
  width: 100%;
  height: 300px;
  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-mercury);
}

.product-description {
  color: var(--color-mercury-dark);
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
}

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

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

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: var(--space-lg) 0;
  border: 1px solid rgba(255, 61, 0, 0.2);
}

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

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

.site-footer {
  background: rgba(0, 0, 0, 0.5);
  border-top: 1px solid rgba(255, 61, 0, 0.1);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.footer-section h3 {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
  color: var(--color-mercury);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

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

.footer-link {
  color: var(--color-mercury-dark);
  font-size: 0.875rem;
  transition: color var(--transition-base);
}

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 61, 0, 0.1);
  color: var(--color-mercury-dark);
  font-size: 0.875rem;
}

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

.privacy-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-obsidian);
  border-top: 2px solid var(--color-plasma);
  padding: var(--space-md);
  z-index: 10000;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.8);
}

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

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

.popup-text {
  flex: 1;
  min-width: 250px;
  color: var(--color-mercury);
  font-size: 0.875rem;
}

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

/* ============================================
   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-plasma);
}

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

@media (max-width: 768px) {
  :root {
    --section-padding: 3rem 1rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
  }
  
  .section-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .section-banner {
    min-height: 300px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 2rem 1rem;
  }
  
  .popup-content {
    flex-direction: column;
    text-align: center;
  }
  
  .popup-buttons {
    width: 100%;
    justify-content: center;
  }
}

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