/* ==========================================================================
   VST PrintHub — Design System & Custom Stylesheet
   Print-on-Demand (POD) & Custom Merchandise Platform
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  /* Harmonious Color Palette */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: #1f2937;
  --bg-card-hover: #374151;
  --bg-glass: rgba(31, 41, 55, 0.7);
  
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --brand-primary: #6366f1;
  --brand-primary-hover: #4f46e5;
  --brand-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --brand-glow: 0 0 25px rgba(99, 102, 241, 0.4);
  
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --border-color: rgba(255, 255, 255, 0.1);
  --border-active: rgba(99, 102, 241, 0.5);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --border-color: #e2e8f0;
  --border-active: #6366f1;
}

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

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-logo i {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 1.8rem;
}

.brand-badge {
  background: rgba(99, 102, 241, 0.15);
  color: var(--brand-primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--brand-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.btn-primary-custom {
  background: var(--brand-gradient);
  color: #fff;
  border: none;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: var(--brand-glow);
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.btn-outline-custom {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-outline-custom:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  background: rgba(99, 102, 241, 0.05);
}

/* Hero Section */
.hero-section {
  padding: 4rem 2rem 3rem;
  max-width: 1300px;
  margin: 0 auto;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--brand-primary);
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  letter-spacing: -0.03em;
}

.hero-title span {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.stat-item h4 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Interactive Studio / Canvas Mockup Generator */
.studio-container {
  max-width: 1350px;
  margin: 2rem auto 5rem;
  padding: 0 1.5rem;
}

.studio-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 340px 1fr 340px;
  min-height: 720px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

/* Studio Left Panel - Controls */
.studio-panel {
  padding: 1.5rem;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--bg-card);
  overflow-y: auto;
}

.studio-panel-right {
  border-right: none;
  border-left: 1px solid var(--border-color);
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Garment Color Swatches */
.color-picker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}

.color-swatch {
  height: 42px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.color-swatch:hover, .color-swatch.active {
  border-color: var(--brand-primary);
  transform: scale(1.08);
}

.color-swatch.active::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
  text-shadow: 0 0 4px rgba(0,0,0,0.8);
}

/* Print Placement Selector */
.placement-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.placement-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

.placement-btn:hover, .placement-btn.active {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Upload Dropzone */
.dropzone-box {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  background: var(--bg-primary);
}

.dropzone-box:hover {
  border-color: var(--brand-primary);
  background: rgba(99, 102, 241, 0.05);
}

.dropzone-box i {
  font-size: 2.2rem;
  color: var(--brand-primary);
  margin-bottom: 0.5rem;
}

/* Center Canvas Viewer */
.canvas-stage {
  background: radial-gradient(circle at center, rgba(255,255,255,0.03) 0%, transparent 70%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 2rem;
}

.garment-mockup-wrapper {
  position: relative;
  width: 480px;
  height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.garment-svg-base {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.4));
}

/* Printable Overlay Area */
.print-area-overlay {
  position: absolute;
  width: 180px;
  height: 250px;
  top: 26%;
  left: 31%;
  border: 1px dashed rgba(99, 102, 241, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: move;
}

.user-artwork-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3));
}

/* Quality DPI Meter Badge */
.dpi-meter-badge {
  position: absolute;
  bottom: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  backdrop-filter: blur(10px);
}

.dpi-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

/* Product Catalog Grid */
.catalog-section {
  max-width: 1350px;
  margin: 0 auto 5rem;
  padding: 0 1.5rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-5px);
  border-color: var(--brand-primary);
  box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.product-img-box {
  height: 240px;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 1.5rem;
}

.product-img-box img {
  max-height: 100%;
  object-fit: contain;
  transition: var(--transition-smooth);
}

.product-card:hover .product-img-box img {
  transform: scale(1.05);
}

.product-badge-tech {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(5px);
}

.product-info {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.product-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.product-specs {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.product-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.base-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--brand-primary);
}

/* Profit Calculator */
.calc-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin: 3rem auto;
  max-width: 1100px;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.calc-slider-group {
  margin-bottom: 1.5rem;
}

.calc-slider-header {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.custom-range-slider {
  width: 100%;
  accent-color: var(--brand-primary);
  height: 6px;
  border-radius: 3px;
  cursor: pointer;
}

.profit-result-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}

.profit-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0.5rem 0;
}

/* Integrations Hub Grid */
.integrations-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.integration-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition-fast);
  cursor: pointer;
}

.integration-card:hover {
  border-color: var(--brand-primary);
  transform: translateY(-3px);
}

.integration-card i {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

/* Live Order Tracker Pipeline */
.pipeline-container {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 2rem;
}

.pipeline-container::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-color);
  z-index: 1;
}

.pipeline-step {
  position: relative;
  z-index: 2;
  background: var(--bg-secondary);
  padding: 0 1rem;
  text-align: center;
}

.pipeline-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.pipeline-step.active .pipeline-icon {
  border-color: var(--brand-primary);
  background: var(--brand-primary);
  color: #fff;
  box-shadow: var(--brand-glow);
}

.pipeline-step.completed .pipeline-icon {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: #fff;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem 2rem;
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Mega Menu Dropdown */
.mega-menu-item {
  position: relative;
}

.mega-menu-dropdown {
  position: absolute;
  top: 100%;
  left: -20px;
  width: 680px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 1200;
}

.mega-menu-item:hover .mega-menu-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-column h4 {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--brand-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.mega-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mega-column a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.mega-column a:hover {
  color: var(--brand-primary);
}

/* Onboarding Step Carousel (Printful Hero Matching) */
.onboarding-container {
  max-width: 1300px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

.onboarding-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(16, 185, 129, 0.05) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.onboarding-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  text-align: left;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.step-card:hover {
  transform: translateY(-5px);
  border-color: var(--brand-primary);
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.step-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Filter Sidebar for Catalog */
.catalog-layout {
  max-width: 1350px;
  margin: 2rem auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
}

.filter-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  height: fit-content;
}

.filter-group {
  margin-bottom: 1.75rem;
}

.filter-group-title {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.filter-checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.85rem;
}

.filter-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.filter-checkbox-label:hover {
  color: var(--text-main);
}

.filter-checkbox-label input[type="checkbox"] {
  accent-color: var(--brand-primary);
  width: 16px;
  height: 16px;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .catalog-layout {
    grid-template-columns: 1fr;
  }
  .mega-menu-dropdown {
    display: none;
  }
  .studio-card {
    grid-template-columns: 1fr;
  }
  .studio-panel {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .integrations-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}