/* ========================================
   MISSION BRIEFING PORTAL - DESIGN SYSTEM
   Technical Utility Aesthetic
   ======================================== */

:root {
  /* Color Palette */
  --color-lunar-graphite: #1A1A1D;
  --color-alert-orange: #FF5F1F;
  --color-ozone-white: #F8FAFC;
  --color-topo-blue: #0EA5E9;
  --color-dark-bg: #0F1114;
  --color-card-bg: #1E2026;
  --color-border: #2A2D35;
  
  /* Typography */
  --font-command: 'Michroma', sans-serif;
  --font-spec: 'Source Code Pro', monospace;
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Radius */
  --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 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(255, 95, 31, 0.3);
  
  /* Layout */
  --max-width: 1280px;
  --header-height: 80px;
}

/* ========================================
   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-base);
  background-color: var(--color-dark-bg);
  color: var(--color-ozone-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-command);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(1.4rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.2rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
}

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

a:hover {
  color: var(--color-alert-orange);
}

code, .spec-text {
  font-family: var(--font-spec);
  font-size: 0.9em;
  background-color: rgba(14, 165, 233, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

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

.site-header {
  background-color: rgba(26, 26, 29, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px 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;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand-name {
  font-family: var(--font-command);
  font-size: clamp(0.7rem, 2vw, 1rem);
  color: var(--color-ozone-white);
}

.main-navigation {
  display: flex;
  align-items: center;
  list-style: none;
}

.nav-link {
  color: var(--color-ozone-white);
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-alert-orange);
  background-color: rgba(255, 95, 31, 0.1);
}

.burger-button {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-ozone-white);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: 0.8rem;
  z-index: 100001;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  font-family: var(--font-command);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.burger-button:hover {
  border-color: var(--color-alert-orange);
  color: var(--color-alert-orange);
}

/* Burger Menu Active - will be shown via media query */

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

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

/* ========================================
   BANNER SECTIONS (Full-Width)
   ======================================== */

.full-width-banner {
  width: 100vw;
  position: relative;
  margin-left: calc(-50vw + 50%);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.banner-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  filter: brightness(0.6) contrast(1.2);
}

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

.banner-title {
  font-size: clamp(1rem, 5vw, 2rem);
  color: var(--color-ozone-white);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
  margin-bottom: var(--space-lg);
}

.banner-text {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-ozone-white);
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.8);
  max-width: 700px;
  margin: 0 auto;
}

/* Scan-line Overlay Effect */
.scan-line-overlay {
  position: relative;
}

.scan-line-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(14, 165, 233, 0.03) 2px,
    rgba(14, 165, 233, 0.03) 4px
  );
  pointer-events: none;
  z-index: 3;
}

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

.content-section {
  padding: var(--space-3xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  color: var(--color-topo-blue);
  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-topo-blue), transparent);
}

/* Grid Layouts */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  width: 100%;
  justify-items: center;
}

.grid-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 400px;
}

.grid-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-topo-blue), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

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

.grid-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  filter: grayscale(0.2) contrast(1.1);
  display: block;
}

.grid-title {
  font-family: var(--font-command);
  font-size: 1.2rem;
  color: var(--color-topo-blue);
  margin-bottom: var(--space-sm);
}

.grid-text {
  color: rgba(248, 250, 252, 0.8);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  align-items: center;
  margin-top: var(--space-xl);
  width: 100%;
  justify-items: center;
}

.column-image {
  width: 100%;
  border-radius: var(--radius-md);
  filter: grayscale(0.1) contrast(1.1);
}

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

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-command);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 2px solid var(--color-alert-orange);
  background-color: transparent;
  color: var(--color-alert-orange);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  text-align: center;
  margin-top: 10px;
}

.btn:hover {
  background-color: var(--color-alert-orange);
  color: var(--color-dark-bg);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--color-alert-orange);
  color: var(--color-dark-bg);
}

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

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

.form-container {
  max-width: 600px;
  margin: var(--space-2xl) auto;
  background-color: var(--color-card-bg);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

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

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

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background-color: var(--color-lunar-graphite);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ozone-white);
  font-family: var(--font-spec);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-topo-blue);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

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

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

.checkbox-label {
  font-size: 0.9rem;
  color: rgba(248, 250, 252, 0.7);
  line-height: 1.5;
}

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

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  width: 100%;
  justify-items: center;
}

.product-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  width: 100%;
  max-width: 400px;
}

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

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  filter: grayscale(0.1);
}

.product-title {
  font-family: var(--font-command);
  font-size: 1.2rem;
  color: var(--color-topo-blue);
  margin-bottom: var(--space-sm);
}

.product-price {
  font-family: var(--font-spec);
  font-size: 1.2rem;
  color: var(--color-alert-orange);
  margin-top: var(--space-md);
}

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

.site-footer {
  background-color: var(--color-lunar-graphite);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

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

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

.footer-link {
  color: rgba(248, 250, 252, 0.7);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-info {
  text-align: center;
  color: rgba(248, 250, 252, 0.5);
  font-size: 0.85rem;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

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

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

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

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

.mt-2xl {
  margin-top: var(--space-2xl);
}

.hidden {
  display: none;
}

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

@media (max-width: 1023px) {
  .main-navigation {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-lunar-graphite);
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg);
    gap: var(--space-md);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  
  .burger-button {
    display: block;
  }
  
  .burger-menu-active .main-navigation {
    display: flex;
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 3rem;
    --space-2xl: 2rem;
  }
  

  
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  .two-column {
    grid-template-columns: 1fr;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .banner-content {
    padding: var(--space-xl) var(--space-md);
  }
}

@media (max-width: 480px) {
  .content-section {
    padding: var(--space-xl) var(--space-md);
  }
  
  .form-container {
    padding: var(--space-lg);
  }
  
  .footer-nav {
    flex-direction: column;
    gap: var(--space-md);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 14px;
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-sm);
  }
}