/* =============================================================
   portfolio.css
   Perlyn-IT Website — Portfolio Page Styles
   Variables mapped to main.css naming convention.
   No hardcoded colours, no inline styles.
   ============================================================= */


/* =============================================================
   1. PAGE HERO
   ============================================================= */

.portfolio-hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-3xl);
  background: linear-gradient(
    160deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  border-bottom: 1px solid var(--border-subtle);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.breadcrumb__link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb__link:hover {
  color: var(--accent-teal-light);
}

.breadcrumb__sep {
  color: var(--text-muted);
}

.breadcrumb__current {
  color: var(--accent-teal-light);
}

/* Hero content */
.portfolio-hero__content {
  max-width: 680px;
}

.portfolio-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: var(--space-sm) 0 var(--space-lg);
}

.portfolio-hero__sub {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.portfolio-hero__note {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
  padding: var(--space-sm) var(--space-md);
  background: rgba(155, 175, 202, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  width: fit-content;
}

.portfolio-hero__note-icon {
  color: var(--accent-teal-light);
  font-style: normal;
  font-size: 1rem;
}


/* =============================================================
   2. PORTFOLIO INTRO — 2 column
   ============================================================= */

.portfolio-intro {
  background: var(--bg-primary);
}

.portfolio-intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.portfolio-intro__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.portfolio-intro__text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.portfolio-intro__text p:last-child {
  margin-bottom: 0;
}

.portfolio-intro__counts-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  margin-bottom: var(--space-lg);
}

.portfolio-intro__count-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.portfolio-count-badge {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease;
}

.portfolio-count-badge:hover {
  border-color: var(--border-accent);
}

.portfolio-count-badge__num {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--accent-teal-light);
  min-width: 2rem;
  text-align: center;
}

.portfolio-count-badge__label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}


/* =============================================================
   3. FILTER BAR
   ============================================================= */

.portfolio-filter-section {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: var(--space-md) 0;
  background: rgba(10, 15, 30, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
  user-select: none;
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-teal-light);
  background: rgba(13, 115, 119, 0.08);
}

.filter-btn.active {
  color: #ffffff;
  background: var(--accent-teal);
  border-color: var(--accent-teal);
  box-shadow: 0 0 14px rgba(13, 115, 119, 0.45);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--accent-teal-light);
  outline-offset: 3px;
}


/* =============================================================
   4. PORTFOLIO GRID
   ============================================================= */

.portfolio-grid-section {
  background: var(--bg-primary);
  padding-top: var(--space-3xl);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  align-items: start;
  transition: opacity 0.22s ease;
}

.portfolio-grid--fading {
  opacity: 0;
  pointer-events: none;
}

/* Loading dots */
.portfolio-grid__loading {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-4xl) 0;
}

.portfolio-grid__loading-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-teal-light);
  opacity: 0.6;
  animation: portfolioDotPulse 1.2s ease-in-out infinite;
}

.portfolio-grid__loading-dot:nth-child(2) { animation-delay: 0.2s; }
.portfolio-grid__loading-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes portfolioDotPulse {
  0%, 100% { opacity: 0.2; transform: scale(0.85); }
  50%       { opacity: 0.9; transform: scale(1.1); }
}

.portfolio-grid__empty {
  text-align: center;
  padding: var(--space-4xl) 0;
  color: var(--text-muted);
  font-size: 1rem;
}


/* =============================================================
   5. PORTFOLIO CARD
   ============================================================= */

.portfolio-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out, border-color 0.3s ease-out;
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-teal);
  border-color: var(--border-accent);
}

/* Image placeholder area */
.portfolio-card__image {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-card);
  flex-shrink: 0;
}

.portfolio-card__image-icon {
  width: 48px;
  height: 48px;
  color: var(--accent-teal-light);
  opacity: 0.6;
}

.portfolio-card__image-icon svg {
  width: 100%;
  height: 100%;
}

/* Card body */
.portfolio-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-xl);
  flex: 1;
}

.portfolio-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-teal-light);
  background: rgba(13, 115, 119, 0.12);
  border: 1px solid rgba(13, 115, 119, 0.25);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  width: fit-content;
}

.portfolio-card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 0;
}

.portfolio-card__client {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.portfolio-card__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

/* Tags */
.portfolio-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.portfolio-card__tag {
  display: inline-flex;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(155, 175, 202, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
}

/* Outcome stat */
.portfolio-card__outcome {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-gold);
  margin: 0;
}

/* Card CTA button */
.portfolio-card__btn {
  margin-top: auto;
  align-self: flex-start;
  font-size: 0.875rem;
  padding: 0.5rem 1.25rem;
}

.portfolio-card__btn[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
  cursor: default;
}


/* =============================================================
   6. BTN ALIASES — portfolio uses btn-primary / btn-outline
      These map to the .btn system in components.css
   ============================================================= */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.8125rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  background: var(--gradient-teal);
  color: #fff;
  box-shadow: 0 4px 20px rgba(13, 115, 119, 0.30);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(13, 115, 119, 0.45);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.8125rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-card);
}

.btn-outline:hover {
  border-color: var(--accent-teal-light);
  color: var(--accent-teal-light);
  transform: translateY(-2px);
}


/* =============================================================
   7. FEATURED GRID
   ============================================================= */

.featured-section {
  background: var(--bg-secondary);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.featured-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out, border-color 0.3s ease-out;
}

.featured-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-teal);
  border-color: var(--border-accent);
}

.featured-card__image {
  position: relative;
  width: 100%;
  height: 220px;
  background: linear-gradient(
    135deg,
    var(--bg-secondary) 0%,
    #0c1a28 50%,
    var(--bg-primary) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-card);
  flex-shrink: 0;
}

.featured-card__image-icon {
  width: 72px;
  height: 72px;
  color: var(--accent-teal-light);
  opacity: 0.5;
}

.featured-card__image-icon svg {
  width: 100%;
  height: 100%;
}

.featured-card__image-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-teal-light);
  background: rgba(10, 15, 30, 0.85);
  border: 1px solid rgba(13, 115, 119, 0.35);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.featured-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-2xl);
  flex: 1;
}

.featured-card__title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 0;
}

.featured-card__client {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.featured-card__desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

.featured-card__outcomes {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.featured-card__outcome-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--accent-gold);
  font-weight: 600;
}

.featured-card__outcome-item::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
  margin-top: 7px;
}

.featured-card__btn {
  margin-top: auto;
  align-self: flex-start;
}


/* =============================================================
   8. SECTION BADGE & SECTION LEAD
      (used in portfolio sections not covered by main.css)
   ============================================================= */

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-teal-light);
  margin-bottom: var(--space-md);
}

.section-badge::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--gradient-teal);
  border-radius: 2px;
}

.section-lead {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 620px;
}


/* =============================================================
   9. PORTFOLIO CTA BAND
   ============================================================= */

.portfolio-cta {
  background: var(--bg-primary);
}

.cta-band {
  position: relative;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #0a1628 100%);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(13, 115, 119, 0.5), rgba(0, 180, 216, 0.4), transparent);
}

.cta-band__content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-band__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.cta-band__sub {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-2xl);
}

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


/* =============================================================
   10. RESPONSIVE — TABLET (max 1024px)
   ============================================================= */

@media (max-width: 1024px) {

  .portfolio-hero__title {
    font-size: clamp(2rem, 4vw, 3rem);
  }

  .portfolio-intro__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .featured-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

}


/* =============================================================
   11. RESPONSIVE — MOBILE (max 640px)
   ============================================================= */

@media (max-width: 640px) {

  .portfolio-hero {
    padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl);
  }

  .portfolio-hero__title {
    font-size: 2rem;
  }

  .portfolio-hero__sub {
    font-size: 1rem;
  }

  .portfolio-filter-section {
    position: static;
  }

  .filter-bar {
    gap: var(--space-xs);
  }

  .filter-btn {
    font-size: 0.8125rem;
    padding: 0.4375rem 0.875rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .portfolio-grid-section {
    padding-top: var(--space-2xl);
  }

  .featured-card__body {
    padding: var(--space-xl);
  }

  .featured-card__image {
    height: 180px;
  }

  .cta-band__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-band__actions .btn-primary,
  .cta-band__actions .btn-outline {
    justify-content: center;
  }

}