/* ============================================================
   WANDZILAK WEB DESIGN — PORTFOLIO SHOWCASE PAGE
   Hero canvas, stats strip, filter bar, project grid, cards
   ============================================================ */

/* ---------- PORTFOLIO HERO ---------- */
.portfolio-hero {
  position: relative;
  padding: 160px var(--section-pad-x) 80px;
  text-align: center;
  overflow: hidden;
  background: var(--bg-base);
  min-height: 420px;
}

.portfolio-hero .breadcrumbs {
  margin-bottom: 24px;
}

.portfolio-hero .page-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.15;
  margin-bottom: 16px;
}

.portfolio-hero .body-text {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: var(--text-body);
}

/* Hero background canvas */
#portfolio-hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.portfolio-hero > *:not(#portfolio-hero-canvas) {
  position: relative;
  z-index: 1;
}

/* Hero glow */
.portfolio-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, var(--amber-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}


/* ---------- STATS STRIP ---------- */
.portfolio-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  padding: 40px var(--section-pad-x);
  background: var(--bg-stats);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.portfolio-stat {
  text-align: center;
}

.portfolio-stat .stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--amber-core);
  line-height: 1.1;
  text-shadow: 0 0 20px rgba(255, 180, 60, 0.3);
}

.portfolio-stat .stat-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-top: 4px;
}


/* ---------- FILTER BAR ---------- */
.filter-section {
  position: sticky;
  top: 72px;
  z-index: 50;
  padding: 16px var(--section-pad-x);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);

  /* Default: solid background (Safari-safe, no compositing cost) */
  background: rgba(7, 8, 16, 0.95);
}

/* Progressively enhance with backdrop-filter on capable desktop browsers.
   Mobile Safari pays too high a compositing cost for frosted glass on sticky. */
@media (min-width: 961px) {
  @supports (backdrop-filter: blur(1px)) {
    .filter-section {
      background: rgba(7, 8, 16, 0.88);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      /* NO saturate() — removed deliberately for performance */
    }
  }
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: var(--content-max);
  margin: 0 auto;
}

.filter-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-tertiary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--hover-speed) ease;
  outline: none;
  user-select: none;
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-body);
}

.filter-btn:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan-core);
}

.filter-btn.active {
  background: rgba(0, 180, 255, 0.08);
  border-color: var(--cyan-core);
  color: var(--cyan-bright);
  box-shadow: 0 0 12px rgba(0, 180, 255, 0.15);
}

/* Count badge */
.filter-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  transition: all var(--hover-speed) ease;
}

.filter-btn.active .filter-count {
  background: rgba(0, 180, 255, 0.15);
  color: var(--cyan-core);
}


/* ---------- PROJECT GRID ---------- */
.portfolio-grid-section {
  padding: 40px var(--section-pad-x) var(--section-pad-y);
  background: var(--bg-base);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  max-width: var(--content-max);
  margin: 0 auto;
}

/* No results message */
.portfolio-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 24px;
  color: var(--text-tertiary);
  font-size: 1.1rem;
  display: none;
}


/* ---------- PROJECT CARD ---------- */
.project-card {
  position: relative;
  border-radius: var(--card-radius);
  background: var(--bg-card);
  border: var(--card-border);
  overflow: hidden;
  transition: transform var(--hover-speed) ease,
              box-shadow var(--hover-speed) ease,
              opacity 0.45s ease;
  will-change: transform;
}

/* Shimmer border (amber for portfolio/craft) — OPTIMIZED
   At rest: single bottom gradient only (minimal compositing cost).
   On hover: full four-edge shimmer (only 1 card at a time). */
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  padding: 1px;
  /* RESTING STATE: single bottom shimmer only */
  background:
    radial-gradient(ellipse 100px 35px at 50% 100%, rgba(255, 180, 60, 0.20) 0%, transparent 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.4;
  transition: opacity var(--hover-speed) ease, background 0.1s step-end;
  z-index: 2;
}

/* HOVER STATE: full four-edge shimmers */
.project-card:hover::before {
  background:
    radial-gradient(ellipse 100px 35px at 50% 100%, rgba(255, 180, 60, 0.20) 0%, transparent 100%),
    radial-gradient(ellipse 60px 25px at 50% 0%, rgba(255, 180, 60, 0.10) 0%, transparent 100%),
    radial-gradient(ellipse 25px 60px at 0% 50%, rgba(255, 180, 60, 0.08) 0%, transparent 100%),
    radial-gradient(ellipse 25px 60px at 100% 50%, rgba(255, 180, 60, 0.08) 0%, transparent 100%);
  opacity: 1;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35),
              0 0 20px rgba(255, 180, 60, 0.06);
}

/* Card image */
.project-card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #070810;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card-image img {
  transform: scale(1.05);
}

/* Gradient overlay on image bottom */
.project-card-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--bg-card) 0%, transparent 100%);
  pointer-events: none;
}

/* Card body */
.project-card-body {
  padding: 20px 24px 24px;
}

.project-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
  transition: color var(--hover-speed) ease;
}

.project-card:hover .project-card-title {
  color: var(--amber-bright);
}

.project-card-desc {
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card tags */
.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-tertiary);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Card link overlay */
.project-card-link {
  position: absolute;
  inset: 0;
  z-index: 3;
  text-decoration: none;
  color: inherit;
}

.project-card-link:focus-visible {
  outline: 2px solid var(--cyan-core);
  outline-offset: -2px;
  border-radius: var(--card-radius);
}

/* "View Project" hover indicator */
.project-card-arrow {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 180, 60, 0.10);
  border: 1px solid rgba(255, 180, 60, 0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--hover-speed) ease;
  z-index: 1;
}

.project-card-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--amber-core);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.project-card:hover .project-card-arrow {
  opacity: 1;
  transform: translateX(0);
}


/* ---------- FILTER ANIMATION STATES — OPTIMIZED ---------- */
/* Uses opacity + collapse instead of display:none to avoid grid relayout.
   Hidden cards are pulled out of flow with position:absolute + zero size
   so the grid collapses naturally without per-card reflow. */

.project-card.filter-hiding {
  opacity: 0;
  transform: scale(0.94) translateY(8px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.project-card.filter-hidden {
  /* Collapse out of flow without display:none */
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  margin: 0;
  padding: 0;
  border: none;
}

.project-card.filter-showing {
  opacity: 0;
  transform: scale(0.96) translateY(12px);
}

.project-card.filter-visible {
  /* Explicitly reset to normal grid flow */
  position: relative;
  width: auto;
  height: auto;
  overflow: hidden;
  opacity: 1;
  transform: scale(1) translateY(0);
  transition: opacity 0.45s var(--entrance-ease), transform 0.45s var(--entrance-ease);
}


/* ---------- BOTTOM CTA ---------- */
.portfolio-cta {
  text-align: center;
  padding: 80px var(--section-pad-x) 100px;
  background: var(--bg-cta);
}

.portfolio-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 16px;
}

.portfolio-cta p {
  font-size: 1.05rem;
  color: var(--text-body);
  max-width: 540px;
  margin: 0 auto 32px;
}


/* ---------- RESPONSIVE ---------- */
@media (max-width: 960px) {
  .portfolio-stats {
    gap: 32px;
  }

  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .portfolio-hero {
    padding: 140px 20px 60px;
    min-height: auto;
  }

  .portfolio-stats {
    flex-wrap: wrap;
    gap: 24px 40px;
    padding: 32px 20px;
  }

  .portfolio-stat .stat-number {
    font-size: 2rem;
  }

  .filter-bar {
    gap: 8px;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 0.78rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .project-card-body {
    padding: 16px 18px 20px;
  }
}