/* ============================================================
   Portfolio Page Styles
   Extends about-us.css — inherits all .au-* variables & utilities
   ============================================================ */

/* ============================================================
   SECTION 1 — Hero overrides + Stats
   ============================================================ */
.pf-hero-section {
  padding-bottom: 80px;
}

.pf-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.pf-stat-card {
  background: var(--au-white);
  border-radius: var(--au-radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid rgba(0,0,0,0.06);
}

.pf-stat-card--teal {
  background: var(--au-teal);
  border-color: transparent;
}

.pf-stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--au-dark);
  line-height: 1;
}

.pf-stat-card--teal .pf-stat-number {
  color: var(--au-white);
}

.pf-stat-plus {
  font-size: 28px;
  font-weight: 700;
  color: var(--au-teal);
}

.pf-stat-card--teal .pf-stat-plus {
  color: rgba(255,255,255,0.75);
}

.pf-stat-label {
  font-size: 13px;
  color: var(--au-gray);
  font-weight: 500;
}

.pf-stat-card--teal .pf-stat-label {
  color: rgba(255,255,255,0.85);
}

/* ============================================================
   SECTION 2 — Projects Grid
   ============================================================ */
.pf-projects-section {
  padding-top: 72px;
  padding-bottom: 80px;
}

.pf-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 40px;
}

/* Filter tabs */
.pf-filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pf-filter-btn {
  background: var(--au-white);
  border: 1.5px solid rgba(0,0,0,0.1);
  color: var(--au-gray);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 50px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  font-family: inherit;
}

.pf-filter-btn:hover,
.pf-filter-btn.active {
  background: var(--au-teal);
  color: var(--au-white);
  border-color: var(--au-teal);
}

/* Masonry-style grid */
.pf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 260px;
  gap: 20px;
}

.pf-item {
  border-radius: var(--au-radius);
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.pf-item--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Large items span 2 columns */
.pf-item--large {
  grid-column: span 2;
}

.pf-item-inner {
  position: relative;
  width: 100%;
  height: 100%;
}

.pf-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.pf-item:hover .pf-item-img {
  transform: scale(1.04);
}

.pf-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,27,30,0.88) 0%, rgba(13,27,30,0.2) 55%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pf-item:hover .pf-item-overlay {
  opacity: 1;
}

.pf-item-tag {
  display: inline-block;
  background: var(--au-teal);
  color: var(--au-white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
  width: fit-content;
}

.pf-item-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--au-white);
  margin: 0 0 8px;
  line-height: 1.3;
}

.pf-item-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  margin: 0 0 14px;
  line-height: 1.5;
}

.pf-item-link {
  color: var(--au-teal);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.2s;
}

.pf-item-link:hover {
  color: var(--au-white);
}

/* ============================================================
   SECTION 3 — Process
   ============================================================ */
.pf-process-section {
  padding-top: 72px;
  padding-bottom: 80px;
}

.pf-process-header {
  margin-bottom: 48px;
}

.pf-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pf-process-card {
  position: relative;
  padding-top: 48px;
}

.pf-process-num {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 13px;
  font-weight: 800;
  color: var(--au-teal);
  opacity: 0.5;
  letter-spacing: 1px;
}

.pf-process-num--light {
  color: rgba(255,255,255,0.6);
}

/* ============================================================
   SECTION 4 — Clients + CTA
   ============================================================ */
.pf-clients-section {
  padding-bottom: 80px;
}

.pf-clients-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 56px;
}

.pf-client-card {
  background: var(--au-white);
  border-radius: var(--au-radius);
  padding: 28px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(0,0,0,0.06);
  transition: box-shadow 0.2s;
}

.pf-client-card:hover {
  box-shadow: 0 4px 20px rgba(58,175,169,0.15);
}

.pf-client-logo {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--au-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: var(--au-teal);
  letter-spacing: 1px;
}

.pf-client-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--au-gray);
  text-align: center;
}

/* CTA Strip */
.pf-cta-strip {
  background: var(--au-dark);
  border-radius: var(--au-radius);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.pf-cta-strip-title {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  color: var(--au-white);
  margin: 0 0 6px;
  line-height: 1.3;
}

.pf-cta-strip-sub {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin: 0;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .pf-stats-row      { grid-template-columns: repeat(2, 1fr); }
  .pf-process-grid   { grid-template-columns: repeat(2, 1fr); }
  .pf-clients-grid   { grid-template-columns: repeat(3, 1fr); }
  .pf-grid           { grid-template-columns: repeat(2, 1fr); }
  .pf-item--large    { grid-column: span 2; }
}

@media (max-width: 768px) {
  .pf-section-header { flex-direction: column; align-items: flex-start; }
  .pf-grid           { grid-template-columns: 1fr; grid-auto-rows: 240px; }
  .pf-item--large    { grid-column: span 1; }
  .pf-clients-grid   { grid-template-columns: repeat(2, 1fr); }
  .pf-cta-strip      { flex-direction: column; align-items: flex-start; padding: 32px 28px; }
}

@media (max-width: 480px) {
  .pf-stats-row    { grid-template-columns: 1fr; }
  .pf-process-grid { grid-template-columns: 1fr; }
  .pf-clients-grid { grid-template-columns: repeat(2, 1fr); }
}