/**
 * INTEF Canvas Studio - Catalog Layout & Components
 * Technical Institutional Canvas (Stitch Style)
 */

/* ==========================================================================
   1. FIXED TOP NAVIGATION HEADER
   ========================================================================== */
.top-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 56px;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

html.dark .top-header {
  background-color: rgba(11, 23, 38, 0.92);
  border-bottom: 1px solid var(--border-subtle);
}

.header-container {
  height: 56px;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.brand-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--on-surface);
  user-select: none;
}

/* Search rules removed for clean header */

/* Header Action Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-header-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--secondary);
  background-color: var(--surface-container-low);
  transition: all var(--transition-fast);
}

.btn-header-secondary:hover {
  background-color: var(--surface-container);
  color: var(--on-surface);
  border-color: var(--outline-variant);
}

.btn-icon-square {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-lg);
  background-color: var(--surface-container-low);
  border: 1px solid var(--border-subtle);
  color: var(--on-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-icon-square:hover {
  background-color: var(--surface-container);
  border-color: var(--outline-variant);
}

/* ==========================================================================
   2. MAIN WRAPPER & HERO SECTION
   ========================================================================== */
.main-wrapper {
  padding-top: 56px;
  min-height: 100vh;
  display: flex;
  flex-col;
  background-color: var(--background);
}

.hero-section {
  width: 100%;
  padding: 2.75rem 1.5rem 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}



.hero-title {
  font-size: 2.25rem;
  line-height: 1.22;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--on-surface);
  max-width: 840px;
  margin-bottom: 0.75rem;
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.75rem;
  }
}

.hero-title-highlight {
  display: block;
  color: var(--primary);
  font-weight: 800;
}

html.dark .hero-title-highlight {
  color: #72aeff;
}

.hero-subtitle {
  font-size: 0.9375rem;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--secondary);
  max-width: 660px;
  margin: 0 auto 1.75rem auto;
}

/* Category Filter Pills */
.filters-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  width: 100%;
  max-width: 800px;
}

.filter-btn {
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background-color: var(--surface-card);
  color: var(--on-surface);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  background-color: var(--surface-container);
}

.filter-btn.active {
  background-color: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

html.dark .filter-btn.active {
  background-color: #2563eb;
  border-color: #2563eb;
}

/* ==========================================================================
   3. CAROUSEL SHOWROOM SECTION
   ========================================================================== */
.carousel-section {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 1rem 3.5rem 3.5rem 3.5rem;
  position: relative;
}

@media (max-width: 768px) {
  .carousel-section {
    padding: 1rem 1rem 3rem 1rem;
  }
}

/* Fixed External Navigation Buttons */
.carousel-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  width: 48px;
  height: 48px;
  background-color: var(--surface-card);
  color: var(--primary);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px -5px rgba(0, 43, 73, 0.15), 0 4px 6px -2px rgba(0, 43, 73, 0.05);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

html.dark .carousel-nav-btn {
  color: var(--on-surface);
  border-color: var(--border-subtle);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.carousel-nav-btn:hover {
  background-color: var(--primary);
  color: #ffffff;
  transform: translateY(-50%) scale(1.05);
}

.carousel-nav-btn.prev {
  left: 0.5rem;
}

.carousel-nav-btn.next {
  right: 0.5rem;
}

@media (max-width: 768px) {
  .carousel-nav-btn {
    display: none;
  }
}

/* Scroll Container */
.carousel-track {
  display: flex;
  gap: 1.5rem;
  padding: 0.5rem 0.25rem 1.5rem 0.25rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   4. VISUAL CARDS
   ========================================================================== */
.visual-card {
  width: 320px;
  min-height: 400px;
  flex-shrink: 0;
  scroll-snap-align: start;
  border-radius: var(--radius-xl);
  background-color: var(--surface-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
}

.visual-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--outline-variant);
}

.visual-card.featured-card {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 1px var(--accent-gold), var(--shadow-md);
}

/* Card Header */
.card-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.card-category-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--surface-container);
  color: var(--secondary);
}

.card-code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--secondary);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--on-surface);
  margin-bottom: 0.375rem;
}

.card-desc {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--secondary);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.2rem;
}

/* Chart Canvas Simulation Box */
.card-simulation-box {
  width: 100%;
  height: 180px;
  border-radius: var(--radius-lg);
  background-color: var(--surface-container-low);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 0.75rem;
}

/* Card Footer */
.card-footer {
  margin-top: 1rem;
}

.card-specs-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--secondary);
  border-top: 1px dashed var(--border-light);
  margin-bottom: 0.75rem;
}

.card-spec-value {
  color: var(--on-surface);
  font-weight: 600;
}

/* Action Buttons */
.btn-card-action {
  width: 100%;
  height: 38px;
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  transition: all var(--transition-fast);
}

.btn-card-action.primary-cta {
  background-color: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-card-action.primary-cta:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-card-action.upcoming {
  background-color: var(--surface-container);
  color: var(--on-surface);
  cursor: default;
}

.btn-card-action.upcoming:hover {
  background-color: var(--surface-container-high);
}

/* ==========================================================================
   5. HOW IT WORKS GUIDE (3 STEPS)
   ========================================================================== */
.how-it-works-section {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem 1.5rem;
}

.how-it-works-card {
  background-color: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
}

.how-it-works-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
}

.how-it-works-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  margin-bottom: 0.5rem;
}

.how-it-works-subtitle {
  font-size: 0.875rem;
  color: var(--secondary);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  position: relative;
}

@media (max-width: 860px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background-color: var(--surface-container-low);
  border: 1px solid var(--border-light);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.step-item:hover {
  transform: translateY(-2px);
  border-color: var(--outline-variant);
}

.step-number-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  background-color: var(--primary);
  color: #ffffff;
  margin-bottom: 1rem;
}

html.dark .step-number-badge {
  background-color: #2563eb;
}

.step-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 0.375rem;
}

.step-desc {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--secondary);
}

/* ==========================================================================
   6. INSTITUTIONAL FOOTER
   ========================================================================== */
.main-footer {
  width: 100%;
  background-color: var(--surface-card);
  border-top: 1px solid var(--border-light);
  padding: 3rem 1.5rem 2rem 1.5rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

html.dark .main-footer {
  border-top-color: var(--border-subtle);
}

.footer-inner {
  max-width: 1360px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
}

html.dark .footer-top-row {
  border-bottom-color: var(--border-subtle);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.footer-brand-logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-brand-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.015em;
}

.footer-brand-tagline {
  font-size: 0.8125rem;
  color: var(--secondary);
}

.footer-nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: color var(--transition-fast);
}

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

html.dark .footer-link:hover {
  color: #72aeff;
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--secondary);
}

.footer-copy-text {
  font-family: var(--font-mono);
}