/* ==========================================================================
   Design Spectrum — Gallery Layout & Component Styles
   ========================================================================== */

/* Header & Sticky Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(249, 250, 251, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-primary);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-logo svg {
  width: 28px;
  height: 28px;
  color: var(--accent-primary);
}

.studio-tagline-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
}

.studio-tagline-badge span.dot {
  width: 6px;
  height: 6px;
  background-color: #10b981;
  border-radius: 50%;
  display: inline-block;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 20px;
  background-color: var(--text-primary);
  color: var(--text-inverse);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-primary:hover {
  background-color: #1f2937;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 20px;
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-primary);
}

/* Hero Section */
.hero-section {
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 840px;
  margin: 0 auto;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--accent-light);
  border: 1px solid var(--accent-border);
  color: var(--accent-primary);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Gallery Section & Controls */
.gallery-section {
  padding: var(--space-8) 0 var(--space-20);
}

.controls-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.search-box-wrapper {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 14px 44px 14px 48px;
  font-size: var(--fs-base);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px var(--focus-ring);
  outline: none;
}

.search-clear-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.search-clear-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

.search-clear-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

/* Filter Pills */
.filter-categories {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-btn {
  padding: 8px 18px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.filter-btn.active {
  background-color: var(--text-primary);
  color: var(--text-inverse);
  border-color: var(--text-primary);
  font-weight: var(--fw-semibold);
  box-shadow: var(--shadow-sm);
}

.filter-results-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding: 0 var(--space-2);
}

/* Gallery Cards Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-8);
  transition: opacity var(--transition-base);
}

@media (min-width: 640px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1400px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Gallery Card Design */
.gallery-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  position: relative;
  height: 100%;
}

.gallery-card:hover, .gallery-card:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-strong);
}

.card-preview-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: var(--bg-subtle);
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}

.card-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
  display: block;
}

.gallery-card:hover .card-preview-img {
  transform: scale(1.04);
}

.card-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 10px;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}

.card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.card-description {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.tag-pill {
  font-size: var(--fs-xs);
  padding: 3px 8px;
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-weight: var(--fw-medium);
}

.card-action-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 16px;
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.card-action-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.gallery-card:hover .card-action-btn,
.card-action-btn:focus {
  background-color: var(--text-primary);
  color: var(--text-inverse);
  border-color: var(--text-primary);
}

.gallery-card:hover .card-action-btn svg {
  transform: translateX(3px);
}

/* Empty Search Results State */
.empty-results {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  grid-column: 1 / -1;
}

.empty-icon {
  width: 64px;
  height: 64px;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.empty-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}

.empty-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}

/* Process & Methodology Section */
.process-section {
  padding: var(--space-16) 0;
  background-color: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section-subtitle {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: var(--space-2);
}

.section-title {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-3);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.process-card {
  padding: var(--space-8);
  background-color: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  position: relative;
}

.process-number {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  font-family: var(--font-mono);
  color: var(--accent-primary);
  margin-bottom: var(--space-3);
  display: inline-block;
  padding: 4px 8px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
}

.process-card-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-3);
}

.process-card-desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact CTA Banner */
.cta-section {
  padding: var(--space-16) 0;
  background-color: var(--bg-main);
}

.cta-box {
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: var(--space-12) var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box h2 {
  color: #ffffff;
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-4);
}

.cta-box p {
  color: #9ca3af;
  max-width: 580px;
  margin: 0 auto var(--space-8);
  font-size: var(--fs-lg);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 28px;
  background-color: #ffffff;
  color: var(--text-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.cta-btn:hover {
  background-color: #f3f4f6;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* Site Footer */
.site-footer {
  padding: var(--space-8) 0;
  background-color: #ffffff;
  border-top: 1px solid var(--border-light);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.footer-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-nav {
  display: flex;
  gap: var(--space-6);
}

.footer-nav a {
  color: var(--text-muted);
}

.footer-nav a:hover {
  color: var(--text-primary);
}