/* ============================================
   USE CASES PAGE — Onyx Visual
   ============================================ */

/* ============================================
   TAB FILTERS (Section 2)
   ============================================ */

.uc-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-12);
}

.uc-filter-btn {
  padding: var(--sp-2) var(--sp-5);
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.uc-filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.06);
}

.uc-filter-btn.active {
  color: #fff;
  background: var(--accent-glow);
  border-color: transparent;
  box-shadow: 0 2px 12px rgba(59, 130, 246, 0.25);
}

/* ============================================
   USE CASE VERTICAL BLOCKS
   ============================================ */

.uc-vertical {
  margin-bottom: var(--sp-16);
  padding-bottom: var(--sp-16);
  border-bottom: 1px solid var(--border-color);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.uc-vertical:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.uc-vertical.hidden {
  display: none;
}

/* Vertical header */
.uc-vertical__header {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
}

.uc-vertical__icon-wrap {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: var(--radius-lg);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.uc-vertical__icon-wrap svg {
  width: 24px;
  height: 24px;
  color: var(--accent-primary);
}

.uc-vertical__title {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-primary);
  margin-bottom: var(--sp-1);
}

.uc-vertical__tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  margin-bottom: var(--sp-2);
  width: fit-content;
}

.uc-vertical__desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 680px;
}

/* Gallery grid */
.uc-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

@media (min-width: 768px) {
  .uc-gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

.uc-gallery__item {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.uc-gallery__item:hover {
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Placeholder image styling */
.uc-gallery__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
}

.uc-gallery__placeholder svg {
  width: 32px;
  height: 32px;
  opacity: 0.25;
  color: var(--accent-primary);
}

.uc-gallery__placeholder span {
  font-size: 0.6875rem;
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.6;
}

/* Different gradient per category */
.uc-gallery__item--trade {
  background: linear-gradient(135deg, #131a2e 0%, #1a2338 50%, #0f1520 100%);
}
.uc-gallery__item--corporate {
  background: linear-gradient(135deg, #0f1a20 0%, #142028 50%, #0d1318 100%);
}
.uc-gallery__item--wedding {
  background: linear-gradient(135deg, #1a1520 0%, #201828 50%, #150f1a 100%);
}
.uc-gallery__item--concert {
  background: linear-gradient(135deg, #1a1015 0%, #201518 50%, #180d10 100%);
}
.uc-gallery__item--retail {
  background: linear-gradient(135deg, #101a18 0%, #152520 50%, #0d1815 100%);
}

/* Hover overlay */
.uc-gallery__item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(59, 130, 246, 0.08);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.uc-gallery__item:hover::after {
  opacity: 1;
}

/* Zoom icon on hover */
.uc-gallery__zoom {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 2;
}

.uc-gallery__zoom svg {
  width: 18px;
  height: 18px;
  color: #fff;
}

.uc-gallery__item:hover .uc-gallery__zoom {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* Mini case study quote */
.uc-vertical__quote {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-md);
}

.uc-vertical__quote-icon {
  min-width: 28px;
  color: var(--accent-primary);
  opacity: 0.5;
}

.uc-vertical__quote-icon svg {
  width: 28px;
  height: 28px;
}

.uc-vertical__quote-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
}

.uc-vertical__quote-text strong {
  color: var(--text-primary);
  font-style: normal;
}

/* ============================================
   LIGHTBOX
   ============================================ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox__inner {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  width: 900px;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.lightbox.open .lightbox__inner {
  transform: scale(1);
}

.lightbox__content {
  position: absolute;
  inset: 0;
}

.lightbox__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  background: #000;
}

.lightbox__media img,
.lightbox__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lightbox__meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--sp-5) var(--sp-6);
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 60%, transparent 100%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  text-align: left;
}

.lightbox__label {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  font-size: 1.125rem;
  color: #fff;
}

.lightbox__caption {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.4;
}

/* Media assets inside gallery item */
.uc-gallery__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.uc-gallery__item:hover .uc-gallery__media {
  transform: scale(1.05);
}

.lightbox__close {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.15);
}

.lightbox__close svg {
  width: 20px;
  height: 20px;
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.lightbox__nav:hover {
  background: rgba(59, 130, 246, 0.3);
  border-color: rgba(59, 130, 246, 0.4);
}

.lightbox__nav--prev {
  left: var(--sp-4);
}

.lightbox__nav--next {
  right: var(--sp-4);
}

.lightbox__nav svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   TESTIMONIALS (Section 3)
   ============================================ */

.uc-testimonials {
  background: var(--bg-secondary);
}

.uc-testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

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

.uc-testimonial-card {
  padding: var(--sp-7);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  transition: all var(--transition-base);
}

.uc-testimonial-card:hover {
  border-color: rgba(59, 130, 246, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

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

.uc-testimonial-card__stars {
  display: flex;
  gap: 2px;
}

.uc-testimonial-card__stars svg {
  width: 16px;
  height: 16px;
  fill: #F59E0B;
  color: #F59E0B;
}

.uc-testimonial-card__category {
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.uc-testimonial-card__quote {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.uc-testimonial-card__quote::before {
  content: '"';
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--accent-primary);
  margin-right: 2px;
  line-height: 0;
  vertical-align: -4px;
}

.uc-testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border-color);
}

.uc-testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  font-size: 1rem;
  color: var(--accent-primary);
  border: 1px solid rgba(59, 130, 246, 0.2);
  flex-shrink: 0;
}

.uc-testimonial-card__name {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: 0.9375rem;
  color: var(--text-primary);
}

.uc-testimonial-card__role {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ============================================
   USE CASES CTA (Section 4)
   ============================================ */

.uc-cta {
  position: relative;
  overflow: hidden;
  text-align: center;
}

.uc-cta__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(59,130,246,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 70% 70%, rgba(6,182,212,0.05) 0%, transparent 50%);
}

.uc-cta__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 41, 59, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 41, 59, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 0%, transparent 100%);
}

.uc-cta__content {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 0 auto;
}

.uc-cta__title {
  margin-bottom: var(--sp-4);
}

.uc-cta__subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--sp-8);
}

.uc-cta__note {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--sp-4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
}

.uc-cta__note svg {
  width: 16px;
  height: 16px;
  color: var(--success);
}