/* ============================================
   FUTURISTIC BEVERAGE STATION - DESIGN SYSTEM
   ============================================ */

:root {
  /* Color Palette - Hydration Console */
  --color-titanium: #2E2E30;
  --color-cooling-blue: #00D1FF;
  --color-carbon-black: #121212;
  --color-indicator-red: #FF3B30;
  --color-text-primary: #E8E8E8;
  --color-text-secondary: #B0B0B0;
  --color-bg-primary: #1A1A1C;
  --color-bg-secondary: #2E2E30;
  --color-border: #3A3A3C;
  
  /* Typography */
  --font-primary: 'Orbitron', sans-serif;
  --font-secondary: '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-width: 1px;
  
  /* Shadows & Effects */
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-glow-blue: 0 0 20px rgba(0, 209, 255, 0.3);
  --shadow-glow-red: 0 0 20px rgba(255, 59, 48, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --header-height: 80px;
  --footer-height: 120px;
  --max-width: 1400px;
}

/* ============================================
   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-secondary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-text-primary);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.4rem, 4vw, 3.5rem);
}

h2 {
  font-size: clamp(1.2rem, 3vw, 2.5rem);
}

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

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

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

.site-header {
  background-color: var(--color-titanium);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
  position: relative;
  z-index: 1000;
}

.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-primary);
  font-size: clamp(0.8rem, 1.45vw, 1.45rem);
  font-weight: 700;
  color: var(--color-text-primary);
}

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

.nav-menu li a {
  color: var(--color-text-secondary);
  font-family: var(--font-primary);
  font-size: 0.675rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-sm) var(--space-md);
  border: var(--border-width) solid transparent;
  transition: all var(--transition-normal);
}

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

.burger-button {
  display: none;
  background: transparent;
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text-primary);
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  order: 999;
}

.burger-button:hover {
  border-color: var(--color-cooling-blue);
  color: var(--color-cooling-blue);
}

.burger-button.active {
  border-color: var(--color-cooling-blue);
  background-color: var(--color-carbon-black);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-button {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 280px;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-titanium);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-left: var(--border-width) solid var(--color-border);
    transition: right var(--transition-normal);
    overflow-y: auto;
    z-index: 999;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu li a {
    display: block;
    width: 100%;
    padding: var(--space-md);
    border: var(--border-width) solid var(--color-border);
  }
}

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

main {
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
  padding: var(--space-lg) 0;
}

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

.section {
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl) 0;
}

/* ============================================
   HERO BANNER
   ============================================ */

.hero-banner {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-carbon-black);
  border: var(--border-width) solid var(--color-border);
  margin-bottom: var(--space-xl);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  max-width: 800px;
}

.hero-content h1 {
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  text-shadow: 0 0 30px rgba(0, 209, 255, 0.5);
}

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

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

.hero-image-below {
  width: 100%;
  max-width: 800px;
  margin: var(--space-xl) auto 0;
  border: var(--border-width) solid var(--color-border);
  display: block;
}

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

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: var(--border-width) solid;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: transparent;
  text-align: center;
  margin-top: 10px;
}

.btn-primary {
  color: var(--color-cooling-blue);
  border-color: var(--color-cooling-blue);
}

.btn-primary:hover {
  background-color: var(--color-cooling-blue);
  color: var(--color-carbon-black);
  box-shadow: var(--shadow-glow-blue);
}

.btn-secondary {
  color: var(--color-indicator-red);
  border-color: var(--color-indicator-red);
}

.btn-secondary:hover {
  background-color: var(--color-indicator-red);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow-red);
}

/* ============================================
   CARDS & GRIDS
   ============================================ */

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

.card {
  background-color: var(--color-titanium);
  border: var(--border-width) solid var(--color-border);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-inner);
}

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

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

.card-title {
  font-family: var(--font-primary);
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.card-description {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

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

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

.form-label {
  display: block;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background-color: var(--color-titanium);
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text-primary);
  font-family: var(--font-secondary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-cooling-blue);
  box-shadow: 0 0 10px rgba(0, 209, 255, 0.2);
}

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

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

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

.checkbox-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

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

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

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

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

.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background-color: var(--color-titanium);
  border: var(--border-width) solid var(--color-cooling-blue);
  padding: var(--space-lg);
  z-index: 10000;
  box-shadow: var(--shadow-glow-blue);
}

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

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

.privacy-popup-title {
  font-family: var(--font-primary);
  font-size: 1rem;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: var(--color-cooling-blue);
}

.privacy-popup-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

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

.privacy-popup-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  cursor: pointer;
}

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

.site-footer {
  background-color: var(--color-carbon-black);
  border-top: var(--border-width) solid var(--color-border);
  padding: var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.footer-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  list-style: none;
  margin-bottom: var(--space-md);
}

.footer-menu li a {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  transition: color var(--transition-fast);
}

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

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ============================================
   UTILITY PAGES
   ============================================ */

.page-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-top: var(--space-lg);
}

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

.content-section h2 {
  color: var(--color-cooling-blue);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.content-section h3 {
  color: var(--color-text-primary);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.date {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-style: italic;
  margin-top: var(--space-lg);
}

/* Thank You & 404 Pages */
.centered-content {
  text-align: center;
  padding: var(--space-xxl) 0;
}

.centered-content h1 {
  color: var(--color-cooling-blue);
  margin-bottom: var(--space-lg);
}

.centered-content h1.error-code {
  font-size: 8rem;
  color: var(--color-indicator-red);
  margin-bottom: var(--space-lg);
}

.centered-content .large-text {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
}

.centered-content .button-group {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   SPECIAL FEATURES
   ============================================ */

.blueprint-toggle {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  width: 50px;
  height: 50px;
  background-color: var(--color-titanium);
  border: var(--border-width) solid var(--color-cooling-blue);
  color: var(--color-cooling-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 1000;
  transition: all var(--transition-normal);
}

.blueprint-toggle:hover {
  background-color: var(--color-cooling-blue);
  color: var(--color-carbon-black);
  box-shadow: var(--shadow-glow-blue);
}

.blueprint-mode img {
  filter: grayscale(100%) contrast(150%);
  opacity: 0.8;
}

.liquid-scrollbar {
  position: fixed;
  right: 0;
  top: 0;
  width: 4px;
  height: 100vh;
  background-color: var(--color-carbon-black);
  z-index: 999;
}

.liquid-fill {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: linear-gradient(to top, var(--color-cooling-blue), rgba(0, 209, 255, 0.5));
  transition: height var(--transition-fast);
}

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

@media (max-width: 768px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
  }
  
  .header-container {
    padding: var(--space-sm) var(--space-md);
  }
  
  .hero-banner {
    min-height: 400px;
  }
  
  .hero-content {
    padding: var(--space-lg);
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-menu {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .privacy-popup {
    right: var(--space-sm);
    bottom: var(--space-sm);
    max-width: calc(100% - 2rem);
  }
  
  .blueprint-toggle {
    bottom: var(--space-sm);
    left: var(--space-sm);
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-lg) 0;
  }
}

/* ============================================
   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-cooling-blue);
  outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header,
  .site-footer,
  .burger-button,
  .privacy-popup,
  .blueprint-toggle {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}