/* ============================================
   TACTICAL NATURALISM - DESIGN SYSTEM
   Outdoor Sketching Classes Website
   ============================================ */

:root {
  /* Color Palette - Tactical Naturalism */
  --color-tactical-moss: #1E2B22;
  --color-graphite-core: #374151;
  --color-canvas-parchment: #F5F5F0;
  --color-prism-blue: #38BDF8;
  --color-ink-dark: #0F172A;
  --color-wash-light: #F8F9FA;
  
  /* Typography */
  --font-system: 'Michroma', monospace;
  --font-handwritten: 'Nanum Pen Script', cursive;
  --font-primary: 'Poppins', 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;
  
  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-thin: 1px solid rgba(56, 189, 248, 0.2);
  
  /* Shadows & Effects */
  --shadow-sm: 0 2px 8px rgba(30, 43, 34, 0.1);
  --shadow-md: 0 4px 16px rgba(30, 43, 34, 0.15);
  --shadow-lg: 0 8px 32px rgba(30, 43, 34, 0.2);
  --blur-glass: blur(10px);
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-normal: 0.5s ease;
  --transition-slow: 0.8s ease;
  
  /* Layout */
  --max-width-content: 1200px;
  --max-width-text: 800px;
}

/* ============================================
   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-primary);
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-tactical-moss);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-tactical-moss);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-family: var(--font-system);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-family: var(--font-system);
}

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

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

.text-system {
  font-family: var(--font-system);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.text-handwritten {
  font-family: var(--font-handwritten);
  font-size: 1.25rem;
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

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

.container-narrow {
  max-width: var(--max-width-text);
}

.section-text-center {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.section-bg-light {
  background: var(--color-wash-light);
}

.section-bg-dark {
  background: var(--color-tactical-moss);
  color: var(--color-canvas-parchment);
}

.section-bg-dark .section-title {
  color: var(--color-canvas-parchment);
}

.hero-short {
  min-height: 50vh;
}

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

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

.text-hero {
  color: #F5F5F0;
  margin-top: 1rem;
  font-size: 1.125rem;
}

.grid {
  display: grid;
  gap: var(--space-lg);
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

/* ============================================
   HEADER - VIEWFINDER DESIGN
   ============================================ */

.header-main {
  position: relative;
  background: linear-gradient(135deg, var(--color-tactical-moss) 0%, var(--color-graphite-core) 100%);
  padding: var(--space-md) 0;
  border-bottom: var(--border-thin);
  z-index: 1000;
}

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

.brand-name {
  font-family: var(--font-system);
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--color-prism-blue);
}

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

.nav-link {
  color: var(--color-canvas-parchment);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-xs) var(--space-sm);
  transition: color var(--transition-fast);
}

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

/* Burger Menu */
.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-sm);
  background: transparent;
  border: var(--border-thin);
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-left: auto;
  z-index: 10001;
}

.burger-line {
  width: 24px;
  height: 2px;
  background: var(--color-prism-blue);
  transition: all var(--transition-fast);
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger-toggle.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 1023px) {
  .burger-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-tactical-moss);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: var(--border-thin);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 999;
  }
  
  .nav-menu.active {
    max-height: 500px;
    opacity: 1;
  }
  
  .nav-link {
    width: 100%;
    text-align: center;
    padding: var(--space-sm);
  }
}

/* ============================================
   VIEWFINDER OVERLAY ELEMENTS
   ============================================ */

.viewfinder-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.3;
}

.crosshair {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-prism-blue);
}

.crosshair-top-left {
  top: 20px;
  left: 20px;
}

.crosshair-top-right {
  top: 20px;
  right: 20px;
}

.crosshair-bottom-left {
  bottom: 20px;
  left: 20px;
}

.crosshair-bottom-right {
  bottom: 20px;
  right: 20px;
}

/* ============================================
   ENVIRONMENT SCANNER
   ============================================ */

.env-scanner {
  position: fixed;
  top: 80px;
  right: 20px;
  background: rgba(30, 43, 34, 0.9);
  backdrop-filter: var(--blur-glass);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-family: var(--font-system);
  font-size: 0.75rem;
  color: var(--color-prism-blue);
  z-index: 99;
  min-width: 120px;
}

.env-data {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.env-label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.env-value {
  color: var(--color-canvas-parchment);
}

@media (max-width: 768px) {
  .env-scanner {
    display: none;
  }
  
  .viewfinder-overlay {
    display: none;
  }
}

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

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

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
  background: rgba(30, 43, 34, 0.75);
  backdrop-filter: var(--blur-glass);
  border-radius: var(--radius-lg);
  margin: var(--space-xl);
  max-width: 800px;
}

.hero-title {
  color: var(--color-canvas-parchment);
  margin-bottom: var(--space-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  color: var(--color-prism-blue);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-family: var(--font-system);
  letter-spacing: 0.05em;
}

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

.section-main {
  padding: var(--space-3xl) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  width: 100%;
  max-width: var(--max-width-content);
  padding: 0 var(--space-md);
}

.section-title {
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: var(--color-prism-blue);
}

/* ============================================
   CARDS & GRID ITEMS
   ============================================ */

.card-base {
  background: var(--color-wash-light);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.card-base:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-prism-blue);
}

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

.card-title {
  font-family: var(--font-system);
  color: var(--color-tactical-moss);
  margin-bottom: var(--space-sm);
}

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

/* ============================================
   INK-BLEED TRANSITIONS
   ============================================ */

.ink-bleed {
  position: relative;
  overflow: hidden;
}

.ink-bleed::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1) 0%, transparent 70%);
  animation: inkSpread 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes inkSpread {
  0%, 100% {
    transform: scale(0.8);
    opacity: 0.3;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.6;
  }
}

/* ============================================
   BUTTONS & CTAs
   ============================================ */

.btn-primary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(135deg, var(--color-prism-blue) 0%, var(--color-tactical-moss) 100%);
  color: var(--color-canvas-parchment);
  border-radius: var(--radius-md);
  font-family: var(--font-system);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  margin-top: 10px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  color: var(--color-tactical-moss);
  border: 2px solid var(--color-tactical-moss);
  border-radius: var(--radius-md);
  font-family: var(--font-system);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--color-tactical-moss);
  color: var(--color-canvas-parchment);
}

/* ============================================
   CONTACT FORM
   ============================================ */

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-wash-light);
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  border: var(--border-thin);
  box-shadow: var(--shadow-md);
}

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

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

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-graphite-core);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  background: var(--color-canvas-parchment);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-prism-blue);
}

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

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

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

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

.form-submit {
  width: 100%;
  margin-top: var(--space-lg);
}

/* ============================================
   MAP CONTAINER
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--border-thin);
  box-shadow: var(--shadow-md);
  margin: var(--space-2xl) 0;
}

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

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

.footer-main {
  background: var(--color-tactical-moss);
  color: var(--color-canvas-parchment);
  padding: var(--space-2xl) 0 var(--space-lg);
  margin-top: var(--space-3xl);
  border-top: var(--border-thin);
}

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

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

.footer-link {
  color: var(--color-canvas-parchment);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

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

.footer-info {
  text-align: center;
  font-size: 0.875rem;
  opacity: 0.8;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(56, 189, 248, 0.2);
}

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

.privacy-popup {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-tactical-moss);
  color: var(--color-canvas-parchment);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: var(--border-thin);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.privacy-popup.active {
  opacity: 1;
  visibility: visible;
}

.privacy-popup-text {
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  line-height: 1.6;
}

.privacy-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

.privacy-btn {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.privacy-btn-accept {
  background: var(--color-prism-blue);
  color: var(--color-canvas-parchment);
}

.privacy-btn-accept:hover {
  background: var(--color-canvas-parchment);
  color: var(--color-tactical-moss);
}

.privacy-btn-decline {
  background: transparent;
  color: var(--color-canvas-parchment);
  border: 1px solid var(--color-canvas-parchment);
}

/* ============================================
   PRODUCT GRID
   ============================================ */

.product-price {
  font-family: var(--font-system);
  font-size: 1.5rem;
  color: var(--color-prism-blue);
  margin-top: var(--space-md);
}

/* ============================================
   GALLERY / SKETCH STREAM
   ============================================ */

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

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin);
  box-shadow: var(--shadow-sm);
}

.gallery-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
}

/* ============================================
   COORDINATE GRID / MAP STYLE
   ============================================ */

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

.location-point {
  position: relative;
  background: var(--color-wash-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-prism-blue);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.location-point:hover {
  background: var(--color-tactical-moss);
  color: var(--color-canvas-parchment);
  transform: translateY(-4px);
}

.location-coords {
  font-family: var(--font-system);
  font-size: 0.75rem;
  color: var(--color-prism-blue);
  margin-top: var(--space-sm);
}

/* ============================================
   MATERIALS / CHROMATOGRAPHY
   ============================================ */

.material-card {
  background: linear-gradient(135deg, var(--color-wash-light) 0%, var(--color-canvas-parchment) 100%);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: var(--border-thin);
  text-align: center;
}

.material-icon {
  font-size: 3rem;
  color: var(--color-prism-blue);
  margin-bottom: var(--space-md);
}

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

.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); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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

@media (max-width: 768px) {
  :root {
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
  }
  
  .section-main {
    padding: var(--space-xl) 0;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .hero-content {
    padding: var(--space-xl) var(--space-md);
    margin: var(--space-md);
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .form-container {
    padding: var(--space-lg);
  }
  
  .privacy-popup {
    max-width: calc(100% - 40px);
    left: 20px;
    right: 20px;
    transform: none;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-banner {
    min-height: 40vh;
  }
  
  .card-base,
  .material-card {
    padding: var(--space-md);
  }
}