/* TechBaba.co.uk — Portfolio page (scoped) */

.tb-portfolio,
.tb-portfolio section {
  display: block;
  visibility: visible;
  opacity: 1;
}

:root {
  --tb-navy: #030329;
  --tb-navy-soft: #0a0a4a;
  --tb-navy-card: #0d0d52;
  --tb-white: #ffffff;
  --tb-off-white: #f4f4fb;
  --tb-ink-70: rgba(255, 255, 255, 0.7);
  --tb-ink-50: rgba(255, 255, 255, 0.5);
  --tb-line: rgba(255, 255, 255, 0.12);
  --tb-orange: #ff7a1a;
  --tb-cyan: #29b6f6;
  --tb-radius: 14px;
  --tb-max: 1180px;
  --tb-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

.tb-portfolio {
  background: var(--tb-white);
  color: var(--tb-navy);
  font-family: "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.tb-portfolio img {
  max-width: 100%;
  display: block;
}

.tb-portfolio .portfolio-container {
  max-width: var(--tb-max);
  margin: 0 auto;
  padding: 0 28px;
}

.tb-portfolio h1,
.tb-portfolio h2,
.tb-portfolio h3 {
  font-family: "Sora", sans-serif;
  color: var(--tb-navy);
  margin: 0;
  line-height: 1.15;
}

.tb-portfolio .accent {
  color: var(--tb-orange);
}

.tb-portfolio .section-label {
  font-family: "Sora", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tb-orange);
  margin: 0 0 14px;
}

.tb-portfolio .section-label.light {
  color: var(--tb-cyan);
}

.tb-portfolio .section-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  max-width: 640px;
  margin-bottom: 14px;
}

.tb-portfolio .section-title.light {
  color: var(--tb-white);
}

.tb-portfolio .section-sub {
  max-width: 620px;
  color: rgba(3, 3, 41, 0.65);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 46px;
}

.tb-portfolio .hero {
  position: relative;
  background: var(--tb-navy);
  overflow: hidden;
  padding: 90px 0 70px;
}

.tb-portfolio .hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(255, 122, 26, 0.16), transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(41, 182, 246, 0.16), transparent 45%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.025) 0 2px, transparent 2px 26px);
}

.tb-portfolio .hero-inner {
  position: relative;
  z-index: 1;
}

.tb-portfolio .eyebrow {
  color: var(--tb-cyan);
  font-family: "Sora", sans-serif;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 18px;
}

.tb-portfolio .hero h1 {
  color: var(--tb-white);
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 800;
  max-width: 760px;
}

.tb-portfolio .hero-inner-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 30px;
}

.tb-portfolio .hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tb-portfolio .cube-stage {
  position: relative;
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1 / 1;
  perspective: 900px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tb-portfolio .orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--tb-line);
  transform-style: preserve-3d;
}

.tb-portfolio .ring-1 {
  width: 78%;
  height: 78%;
  transform: rotateX(72deg) rotate(0deg);
  animation: tb-spin-ring 16s linear infinite;
}

.tb-portfolio .ring-2 {
  width: 100%;
  height: 100%;
  border-color: rgba(41, 182, 246, 0.22);
  transform: rotateX(72deg) rotate(90deg);
  animation: tb-spin-ring 24s linear infinite reverse;
}

@keyframes tb-spin-ring {
  to {
    transform: rotateX(72deg) rotate(360deg);
  }
}

.tb-portfolio .cube {
  position: relative;
  width: 140px;
  height: 140px;
  transform-style: preserve-3d;
  transform: rotateX(-20deg) rotateY(35deg);
  animation: tb-cube-spin 14s linear infinite;
  transition: transform 0.2s ease-out;
}

@keyframes tb-cube-spin {
  to {
    transform: rotateX(-20deg) rotateY(395deg);
  }
}

.tb-portfolio .cube-face {
  position: absolute;
  width: 140px;
  height: 140px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: linear-gradient(
    135deg,
    rgba(255, 122, 26, 0.16),
    rgba(41, 182, 246, 0.12)
  );
  backdrop-filter: blur(2px);
}

.tb-portfolio .face-front {
  transform: translateZ(70px);
}

.tb-portfolio .face-back {
  transform: translateZ(-70px) rotateY(180deg);
}

.tb-portfolio .face-right {
  transform: rotateY(90deg) translateZ(70px);
  background: linear-gradient(
    135deg,
    rgba(41, 182, 246, 0.2),
    rgba(255, 122, 26, 0.08)
  );
}

.tb-portfolio .face-left {
  transform: rotateY(-90deg) translateZ(70px);
}

.tb-portfolio .face-top {
  transform: rotateX(90deg) translateZ(70px);
  background: rgba(255, 255, 255, 0.06);
}

.tb-portfolio .face-bottom {
  transform: rotateX(-90deg) translateZ(70px);
  background: rgba(3, 3, 41, 0.4);
}

.tb-portfolio .breadcrumb {
  margin-top: 34px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 0.9rem;
  color: var(--tb-ink-50);
}

.tb-portfolio .breadcrumb .current {
  color: var(--tb-orange);
  font-weight: 600;
}

.tb-portfolio .intro {
  padding: 90px 0;
}

.tb-portfolio .intro-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
}

.tb-portfolio .intro-lead h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 800;
}

.tb-portfolio .intro-body p {
  font-size: 1.02rem;
  line-height: 1.85;
  color: rgba(3, 3, 41, 0.72);
  margin: 0 0 20px;
}

.tb-portfolio .services {
  background: var(--tb-navy);
  padding: 90px 0;
}

.tb-portfolio .services-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.tb-portfolio .service-card {
  background: var(--tb-navy-card);
  border: 1px solid var(--tb-line);
  border-radius: var(--tb-radius);
  padding: 30px 26px;
  transition: transform 0.25s var(--tb-ease), border-color 0.25s var(--tb-ease);
}

.tb-portfolio .service-card:hover {
  transform: translateY(-6px);
  border-color: var(--tb-orange);
}

.tb-portfolio .service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 122, 26, 0.14);
  color: var(--tb-orange);
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.tb-portfolio .service-card h3 {
  color: var(--tb-white);
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.tb-portfolio .service-card p {
  color: var(--tb-ink-50);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

.tb-portfolio .portfolio {
  padding: 90px 0;
}

.tb-portfolio .portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 190px;
  gap: 18px;
}

.tb-portfolio .portfolio-item {
  position: relative;
  margin: 0;
  border-radius: var(--tb-radius);
  overflow: hidden;
  grid-column: span 1;
  grid-row: span 1;
  background: #111;
}

.tb-portfolio .portfolio-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.tb-portfolio .portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 0.5s var(--tb-ease);
}

.tb-portfolio .portfolio-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 20px;
  background: linear-gradient(to top, rgba(3, 3, 41, 0.92) 10%, rgba(3, 3, 41, 0.05) 90%);
  transform: translateY(12px);
  opacity: 0;
  transition: opacity 0.3s var(--tb-ease), transform 0.3s var(--tb-ease);
}

.tb-portfolio .portfolio-item:hover img {
  transform: scale(1.06);
}

.tb-portfolio .portfolio-item:hover figcaption {
  opacity: 1;
  transform: translateY(0);
}

.tb-portfolio .portfolio-item .tag {
  display: inline-block;
  font-family: "Sora", sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tb-orange);
  margin-bottom: 6px;
}

.tb-portfolio .portfolio-item h3 {
  color: var(--tb-white);
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.tb-portfolio .portfolio-item p {
  color: var(--tb-ink-70);
  font-size: 0.82rem;
  margin: 0;
}

.tb-portfolio .reviews {
  padding: 0 0 90px;
}

.tb-portfolio .reviews-slider {
  position: relative;
}

.tb-portfolio .slider-track {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -ms-overflow-style: none;
  scrollbar-width: none;
  padding-bottom: 4px;
}

.tb-portfolio .slider-track::-webkit-scrollbar {
  display: none;
}

.tb-portfolio .slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(3, 3, 41, 0.12);
  background: var(--tb-navy);
  color: var(--tb-white);
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s var(--tb-ease), transform 0.2s var(--tb-ease);
}

.tb-portfolio .slider-arrow:hover {
  background: var(--tb-orange);
}

.tb-portfolio .slider-arrow.prev {
  left: -23px;
}

.tb-portfolio .slider-arrow.next {
  right: -23px;
}

.tb-portfolio .slider-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 30px;
}

.tb-portfolio .slider-dots .dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(3, 3, 41, 0.16);
  cursor: pointer;
  transition: background 0.25s var(--tb-ease), width 0.25s var(--tb-ease);
}

.tb-portfolio .slider-dots .dot.active {
  background: var(--tb-orange);
  width: 22px;
  border-radius: 5px;
}

.tb-portfolio .review-card {
  background: var(--tb-off-white);
  border: 1px solid rgba(3, 3, 41, 0.08);
  border-radius: var(--tb-radius);
  padding: 24px;
  will-change: transform;
  flex: 0 0 calc((100% - 44px) / 3);
  scroll-snap-align: start;
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.tb-portfolio .review-logo {
  flex: none;
  width: 88px;
  height: 88px;
  border-radius: 12px;
  background: var(--tb-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 10px;
}

.tb-portfolio .review-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.tb-portfolio .review-body {
  flex: 1;
  min-width: 0;
}

.tb-portfolio .client-id h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.tb-portfolio .stars {
  color: var(--tb-orange);
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 12px;
  display: block;
}

.tb-portfolio .review-quote {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(3, 3, 41, 0.7);
  margin: 0;
}

.tb-portfolio .tilt {
  transition: transform 0.35s var(--tb-ease);
  will-change: transform;
}

.tb-portfolio .benefits {
  background: var(--tb-navy);
  padding: 90px 0;
}

.tb-portfolio .benefits-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.tb-portfolio .benefit {
  border-top: 2px solid var(--tb-orange);
  padding-top: 22px;
}

.tb-portfolio .benefit-num {
  font-family: "Sora", sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--tb-cyan);
  display: block;
  margin-bottom: 14px;
}

.tb-portfolio .benefit h3 {
  color: var(--tb-white);
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.tb-portfolio .benefit p {
  color: var(--tb-ink-50);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}

.tb-portfolio .cta {
  background: linear-gradient(120deg, var(--tb-navy) 0%, var(--tb-navy-soft) 100%);
  padding: 90px 0;
}

.tb-portfolio .cta-inner {
  text-align: center;
  max-width: 620px;
}

.tb-portfolio .cta h2 {
  color: var(--tb-white);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 16px;
}

.tb-portfolio .cta p {
  color: var(--tb-ink-70);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.tb-portfolio .portfolio-btn {
  display: inline-block;
  background: var(--tb-orange);
  color: var(--tb-navy);
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  padding: 16px 34px;
  border-radius: 100px;
  transition: transform 0.2s var(--tb-ease), background 0.2s var(--tb-ease);
}

.tb-portfolio .portfolio-btn:hover {
  background: var(--tb-cyan);
  transform: translateY(-2px);
  color: var(--tb-navy);
}

@media (max-width: 980px) {
  .tb-portfolio .intro-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .tb-portfolio .services-grid,
  .tb-portfolio .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tb-portfolio .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tb-portfolio .portfolio-item.large {
    grid-column: span 2;
    grid-row: span 1;
  }

  .tb-portfolio .review-card {
    flex: 0 0 calc((100% - 22px) / 2);
  }

  .tb-portfolio .review-logo {
    width: 64px;
    height: 64px;
  }

  .tb-portfolio .hero-inner-split {
    grid-template-columns: 1fr;
  }

  .tb-portfolio .hero-visual {
    order: -1;
  }

  .tb-portfolio .cube-stage {
    max-width: 220px;
    margin: 0 auto 10px;
  }
}

@media (max-width: 680px) {
  .tb-portfolio .services-grid,
  .tb-portfolio .benefits-grid {
    grid-template-columns: 1fr;
  }

  .tb-portfolio .portfolio-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }

  .tb-portfolio .portfolio-item.large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .tb-portfolio .review-card {
    flex: 0 0 100%;
  }

  .tb-portfolio .review-logo {
    width: 70px;
    height: 70px;
  }

  .tb-portfolio .slider-arrow {
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
  }

  .tb-portfolio .slider-arrow.prev {
    left: 4px;
  }

  .tb-portfolio .slider-arrow.next {
    right: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tb-portfolio * {
    transition: none !important;
    animation: none !important;
  }
}