/* ============================================
   ZERO-WASTE KITCHEN SYSTEM - FUTURISTIC UI
   Space Station Inventory System Aesthetic
   ============================================ */

:root {
  /* Color Palette */
  --color-titanium: #B7B7B7;
  --color-oxygen: #D0EFFF;
  --color-carbon: #121212;
  --color-warning: #CCFF00;
  --color-white: #FFFFFF;
  --color-text: #E8E8E8;
  --color-text-dim: #A0A0A0;
  
  /* Typography */
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Titillium Web', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Layout */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(208, 239, 255, 0.3);
}

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

* {
  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);
  background-color: var(--color-carbon);
  overflow-x: hidden;
}

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

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

h1 {
  font-size: clamp(1.1rem, 5vw, 3.5rem);
  letter-spacing: 0.05em;
}

h2 {
  font-size: clamp(1rem, 4vw, 2.5rem);
  letter-spacing: 0.03em;
}

h3 {
  font-size: clamp(0.9rem, 3vw, 1.75rem);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-dim);
  font-size: clamp(0.875rem, 2vw, 1rem);
  word-wrap: break-word;
}

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

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

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

.site-header {
  position: relative;
  width: 100%;
  padding: clamp(0.75rem, 2vw, 1rem) clamp(1rem, 4vw, 2rem);
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.95) 0%, rgba(18, 18, 18, 0.8) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(183, 183, 183, 0.2);
  z-index: 1000;
  box-sizing: border-box;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  width: 100%;
  box-sizing: border-box;
}

.brand-text {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 2vw, 1.45rem);
  color: var(--color-oxygen);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  gap: 10px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-menu li a {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  color: var(--color-titanium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) clamp(0.5rem, 2vw, 1rem);
  border: 1px solid transparent;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

/* Burger Menu */
.burger-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-titanium);
  color: var(--color-titanium);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  order: 999;
  z-index: 100001;
}

.burger-toggle:hover {
  color: var(--color-warning);
  border-color: var(--color-warning);
}

.burger-toggle.active {
  color: var(--color-warning);
  border-color: var(--color-warning);
}

@media (max-width: 1023px) {
  .burger-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(18, 18, 18, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xxl) var(--space-lg);
    border-left: 1px solid rgba(183, 183, 183, 0.3);
    transition: right var(--transition-base);
    z-index: 999;
    overflow-y: auto;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu li a {
    display: block;
    width: 100%;
    padding: var(--space-md);
    border-bottom: 1px solid rgba(183, 183, 183, 0.1);
  }
}

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

main {
  min-height: calc(100vh - 200px);
}

/* ============================================
   HERO BANNERS (Full-Width)
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  margin-left: calc(-50vw + 50%);
  padding: var(--space-lg) 0;
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.95) 0%, rgba(18, 18, 18, 0.85) 100%);
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(208, 239, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(208, 239, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.3;
  pointer-events: none;
}

.hero-content {
  max-width: 100%;
  margin: 0;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.hero-text {
  text-align: center;
  padding: 0 var(--space-lg);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(1.5rem, 6vw, 4rem);
  margin-bottom: clamp(1rem, 3vw, 2rem);
  background: linear-gradient(135deg, var(--color-oxygen) 0%, var(--color-white) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: clamp(0.875rem, 2.5vw, 1.25rem);
  color: var(--color-text);
  max-width: min(100%, 800px);
  margin: 0 auto;
  padding: 0 var(--space-md);
  box-sizing: border-box;
}

.hero-image-wrapper {
  width: 100vw;
  margin: 0;
  position: relative;
  height: clamp(250px, 40vh, 500px);
  overflow: hidden;
}

.hero-image-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid var(--color-oxygen);
  opacity: 0.3;
  pointer-events: none;
  z-index: 1;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border: none;
  box-shadow: var(--shadow-lg);
}

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

.content-section {
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2rem);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

.section-title {
  text-align: center;
  margin-bottom: clamp(1.5rem, 4vw, 3rem);
  position: relative;
  padding-bottom: var(--space-md);
  font-size: clamp(1.25rem, 4vw, 2.5rem);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-oxygen), transparent);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.section-item {
  background: rgba(183, 183, 183, 0.05);
  border: 1px solid rgba(183, 183, 183, 0.2);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.section-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-oxygen);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.section-item:hover {
  border-color: var(--color-oxygen);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.section-item:hover::before {
  transform: scaleY(1);
}

.section-item-title {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-oxygen);
  margin-bottom: var(--space-md);
}

.section-image {
  width: 100%;
  height: auto;
  margin: var(--space-md) 0;
  border: 1px solid rgba(183, 183, 183, 0.2);
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  margin: clamp(1.5rem, 4vw, 3rem) 0;
  width: 100%;
  box-sizing: border-box;
}

.two-column.reverse {
  grid-template-columns: 1fr 1fr;
}

.two-column .column-text,
.two-column .column-image {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.two-column .column-image {
  height: auto;
  display: block;
}

.two-column .column-text {
  padding: 0;
}

/* Tablet and below */
@media (max-width: 1024px) {
  .two-column,
  .two-column.reverse {
    grid-template-columns: 1fr;
    gap: clamp(1rem, 3vw, 2rem);
  }
  
  .two-column.reverse .column-text {
    order: 2;
  }
  
  .two-column.reverse .column-image {
    order: 1;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .two-column,
  .two-column.reverse {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
  }
  
  .two-column .column-text {
    padding: 0;
  }
  
  .two-column .column-image {
    width: 100%;
    max-width: 100%;
    margin: 0;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .two-column,
  .two-column.reverse {
    gap: var(--space-sm);
    margin: var(--space-md) 0;
  }
}

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

.btn {
  display: inline-block;
  padding: clamp(0.75rem, 2vw, 1rem) clamp(1.5rem, 4vw, 3rem);
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  border: 2px solid var(--color-oxygen);
  color: var(--color-oxygen);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  margin-top: 10px;
  max-width: 300px;
}

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

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

.btn-warning:hover {
  background: var(--color-warning);
  color: var(--color-carbon);
}

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

.form-container {
  max-width: 600px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: rgba(183, 183, 183, 0.05);
  border: 1px solid rgba(183, 183, 183, 0.2);
  width: 100%;
  box-sizing: border-box;
}

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

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-titanium);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(18, 18, 18, 0.5);
  border: 1px solid rgba(183, 183, 183, 0.3);
  color: var(--color-text);
  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-oxygen);
  box-shadow: 0 0 0 3px rgba(208, 239, 255, 0.1);
}

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

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

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

.checkbox-group label {
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-text-dim);
}

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

.map-container {
  width: 100%;
  height: clamp(250px, 40vh, 400px);
  margin: clamp(1.5rem, 4vw, 3rem) 0;
  border: 1px solid rgba(183, 183, 183, 0.2);
  overflow: hidden;
}

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

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

.site-footer {
  background: rgba(18, 18, 18, 0.95);
  border-top: 1px solid rgba(183, 183, 183, 0.2);
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 4vw, 2rem);
  margin-top: clamp(2rem, 5vw, 4rem);
  width: 100%;
  box-sizing: border-box;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}

.footer-section h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-oxygen);
  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-menu li a {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-info {
  color: var(--color-text-dim);
  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: 1px solid rgba(183, 183, 183, 0.1);
  color: var(--color-text-dim);
  font-size: 0.85rem;
}
.column-image img{
  width: 305px;
  height: 300px;
}

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

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

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

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

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

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

.legal-list {
  margin-left: var(--space-lg);
  color: var(--color-text-dim);
}

.date {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  font-style: italic;
}

/* ============================================
   UTILITY CLASSES FOR SPECIAL PAGES
   ============================================ */

.centered-section {
  min-height: clamp(40vh, 60vh, 80vh);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.centered-content {
  max-width: min(100%, 600px);
  width: 100%;
}

.error-404-title {
  font-size: clamp(4rem, 15vw, 8rem);
  margin-bottom: var(--space-md);
}

.btn-spacing {
  margin-top: var(--space-md);
}

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

/* Tablet */
@media (max-width: 1024px) {
  .section-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: var(--space-lg);
  }
}

/* Mobile */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  .hero-banner {
    padding: var(--space-md) 0;
  }
  
  .hero-image-wrapper {
    height: clamp(200px, 30vh, 400px);
  }
  
  .hero-text {
    padding: 0 var(--space-md);
  }
  
  .hero-title {
    font-size: clamp(1.25rem, 5vw, 2.5rem);
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-md);
  }
  
  .section-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .section-item {
    padding: var(--space-md);
  }
  
  .form-container {
    padding: var(--space-md);
    margin: 0 var(--space-md);
  }
  
  .btn {
    max-width: 100%;
    margin-top: var(--space-sm);
    width: auto;
    min-width: 120px;
  }
  
  .btn-spacing {
    margin-left: var(--space-sm);
    margin-top: 0;
    display: inline-block;
  }
  
  .centered-content .btn + .btn {
    margin-left: var(--space-sm);
  }
  
  .map-container {
    height: clamp(200px, 35vh, 350px);
    margin: var(--space-lg) 0;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .privacy-popup {
    bottom: var(--space-sm);
    right: var(--space-sm);
    left: var(--space-sm);
    padding: var(--space-md);
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  html {
    font-size: 13px;
  }
  
  .site-header {
    padding: var(--space-sm) var(--space-sm);
  }
  
  .header-container {
    gap: var(--space-sm);
  }
  
  .brand-text {
    font-size: clamp(0.6rem, 3vw, 1rem);
  }
  
  .nav-menu {
    width: 100%;
    max-width: 100%;
  }
  
  .hero-banner {
    padding: var(--space-sm) 0;
  }
  
  .hero-image-wrapper {
    height: clamp(180px, 25vh, 300px);
  }
  
  .hero-text {
    padding: 0 var(--space-sm);
  }
  
  .hero-title {
    font-size: clamp(1.1rem, 4vw, 2rem);
    margin-bottom: var(--space-md);
  }
  
  .hero-description {
    font-size: clamp(0.875rem, 3vw, 1rem);
  }
  
  .content-section {
    padding: var(--space-md) var(--space-sm);
  }
  
  .section-title {
    font-size: clamp(1rem, 4vw, 1.5rem);
    margin-bottom: var(--space-md);
  }
  
  .section-item {
    padding: var(--space-sm);
  }
  
  .section-item-title {
    font-size: clamp(0.9rem, 3vw, 1.1rem);
  }
  
  .form-container {
    padding: var(--space-sm);
    margin: 0 var(--space-sm);
  }
  
  .form-group input,
  .form-group textarea {
    font-size: 16px; /* Prevent zoom on iOS */
  }
  
  .map-container {
    height: clamp(180px, 30vh, 300px);
  }
  
  .footer-container {
    gap: var(--space-md);
  }
  
  .footer-section h3 {
    font-size: clamp(0.85rem, 3vw, 1rem);
  }
  
  .privacy-popup {
    bottom: var(--space-xs);
    right: var(--space-xs);
    left: var(--space-xs);
    padding: var(--space-sm);
  }
  
  .privacy-popup-buttons {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .privacy-popup-buttons .btn {
    width: 100%;
    max-width: 100%;
  }
}

@media (max-width: 320px) {
  html {
    font-size: 12px;
  }
  
  .hero-image-wrapper {
    height: clamp(150px, 20vh, 250px);
  }
}

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

.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: rgba(18, 18, 18, 0.98);
  border: 1px solid var(--color-oxygen);
  padding: var(--space-lg);
  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-md);
}

.privacy-popup-buttons .btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
}