/* ── Portfolio Section ─────────────────────────────────────────────────── */
.portfolio-section {
  background: #e8f0fe;
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}

/* ── Dots + Rings decorations ── */

/* Background dot grid */
.portfolio-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(26,110,245,0.18) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}

/* Soft blur blobs */
.pf-blob {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(70px);
  animation: pfBlobDrift 10s ease-in-out infinite;
}
.pf-blob-1 { width: 340px; height: 340px; top: -80px;  left: -80px;  background: rgba(26,110,245,0.1);  animation-delay: 0s; }
.pf-blob-2 { width: 260px; height: 260px; bottom: -60px; right: -60px; background: rgba(109,40,217,0.08); animation-delay: -4s; }
.pf-blob-3 { width: 200px; height: 200px; top: 40%;    left: 45%;    background: rgba(96,165,250,0.07); animation-delay: -7s; }

@keyframes pfBlobDrift {
  0%, 100% { transform: translate(0, 0); }
  50%       { transform: translate(20px, -20px); }
}

/* Thin floating plus signs */
.pf-plus {
  position: absolute;
  pointer-events: none;
  color: rgba(26,110,245,0.2);
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1;
  animation: pfPlusFloat 7s ease-in-out infinite;
  user-select: none;
}
.pf-plus-1 { top: 12%;  left: 8%;   animation-delay: 0s;   font-size: 1.2rem; }
.pf-plus-2 { top: 25%;  right: 7%;  animation-delay: -2s;  font-size: 1.6rem; color: rgba(109,40,217,0.18); }
.pf-plus-3 { bottom: 18%; left: 6%;  animation-delay: -4s;  font-size: 1rem; }
.pf-plus-4 { bottom: 25%; right: 10%;animation-delay: -1s;  font-size: 1.4rem; color: rgba(109,40,217,0.15); }
.pf-plus-5 { top: 55%;  left: 50%;  animation-delay: -3s;  font-size: 1rem;   color: rgba(26,110,245,0.15); }

@keyframes pfPlusFloat {
  0%, 100% { transform: translateY(0)    rotate(0deg);   opacity: 0.7; }
  50%       { transform: translateY(-14px) rotate(15deg); opacity: 1; }
}

.pf-diamond {
  position: absolute;
  transform: rotate(45deg);
  pointer-events: none;
  border-radius: 4px;
  animation: pfDiamondFloat 6s ease-in-out infinite;
}
.pf-diamond-1 {
  width: 60px; height: 60px;
  top: 8%; left: 4%;
  border: 2px solid rgba(109,40,217,0.2);
  background: rgba(109,40,217,0.04);
  animation-delay: 0s;
}
.pf-diamond-2 {
  width: 36px; height: 36px;
  top: 18%; right: 6%;
  border: 2px solid rgba(26,110,245,0.25);
  background: rgba(26,110,245,0.05);
  animation-delay: -2s;
}
.pf-diamond-3 {
  width: 80px; height: 80px;
  bottom: 12%; left: 2%;
  border: 2px solid rgba(109,40,217,0.12);
  background: rgba(109,40,217,0.03);
  animation-delay: -4s;
}
.pf-diamond-4 {
  width: 24px; height: 24px;
  top: 50%; right: 3%;
  border: 2px solid rgba(26,110,245,0.3);
  background: rgba(26,110,245,0.06);
  animation-delay: -1s;
}
.pf-diamond-5 {
  width: 48px; height: 48px;
  bottom: 20%; right: 8%;
  border: 2px solid rgba(109,40,217,0.18);
  background: rgba(109,40,217,0.04);
  animation-delay: -3s;
}
@keyframes pfDiamondFloat {
  0%, 100% { transform: rotate(45deg) translateY(0);   opacity: 0.7; }
  50%       { transform: rotate(45deg) translateY(-12px); opacity: 1; }
}

/* ── Card corner diamond watermark ── */
.pf-card::after {
  content: '';
  position: absolute;
  bottom: 16px; right: 16px;
  width: 28px; height: 28px;
  border: 2px solid rgba(109,40,217,0.12);
  border-radius: 3px;
  transform: rotate(45deg);
  transition: border-color 0.4s ease, transform 0.4s ease;
  pointer-events: none;
  z-index: 2;
}
.pf-card:hover::after {
  border-color: rgba(109,40,217,0.35);
  transform: rotate(45deg) scale(1.2);
}

/* ── Bento Grid ── */
.pf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: 20px;
  position: relative;
  z-index: 1;
}

/* First card spans 2 cols */
.pf-card:nth-child(1) { grid-column: span 2; }
/* 5th card spans 2 cols */
.pf-card:nth-child(5) { grid-column: span 2; }

/* ── Card base ── */
.pf-card {
  background: #ffffff;
  border: 1px solid rgba(26,110,245,0.1);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(26,110,245,0.07);
}
.pf-card:hover {
  transform: translateY(-8px);
  border-color: rgba(109,40,217,0.3);
  box-shadow: 0 20px 56px rgba(109,40,217,0.14);
}

/* Top shimmer line */
.pf-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #6D28D9, #1a6ef5, transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 3;
}
.pf-card.visible::before,
.pf-card:hover::before { opacity: 1; }

/* ── Image wrap ── */
.pf-img-wrap {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.pf-card:nth-child(1) .pf-img-wrap,
.pf-card:nth-child(5) .pf-img-wrap { height: 260px; }

.pf-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
  filter: brightness(0.85);
}
.pf-card:hover .pf-img {
  transform: scale(1.07);
  filter: brightness(1);
}

/* Image overlay */
.pf-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(6,15,46,0.92) 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 20px;
  z-index: 2;
}

.pf-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #6D28D9, #1a6ef5);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 50px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(109,40,217,0.4);
}
.pf-card:hover .pf-view-btn {
  opacity: 1;
  transform: translateY(0);
}

/* Number badge on image */
.pf-num {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(0,0,0,0.06);
  line-height: 1;
  user-select: none;
}

/* ── Card body ── */
.pf-body {
  padding: 24px 26px 26px;
}

.pf-cat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
  color: #ffffff;
}

.pf-body h3 {
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.35;
}
.pf-card:nth-child(1) .pf-body h3,
.pf-card:nth-child(5) .pf-body h3 { font-size: 1.2rem; }

.pf-body p {
  color: var(--text-light);
  font-size: 0.87rem;
  line-height: 1.72;
  margin-bottom: 18px;
}

.pf-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 16px;
}

/* Tech tags */
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 20px;
  background: rgba(109,40,217,0.08);
  color: #6D28D9;
  border: 1px solid rgba(109,40,217,0.18);
  transition: background 0.3s ease, color 0.3s ease;
}
.pf-card:hover .tech-tag {
  background: rgba(109,40,217,0.15);
  color: #5b21b6;
}

.pf-highlights {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pf-highlights li {
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}
.pf-highlights li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
}

/* ── Featured card case study blocks ── */
.pf-case-sections {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 18px;
}
.pf-case-block {
  background: rgba(26,110,245,0.04);
  border-left: 3px solid #1a6ef5;
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
}
.pf-case-block:nth-child(2) { border-left-color: #dc2626; background: rgba(220,38,38,0.04); }
.pf-case-block:nth-child(3) { border-left-color: #059669; background: rgba(5,150,105,0.04); }
.pf-case-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #1a6ef5;
  margin-bottom: 5px;
}
.pf-case-block:nth-child(2) .pf-case-label { color: #dc2626; }
.pf-case-block:nth-child(3) .pf-case-label { color: #059669; }
.pf-case-block p {
  font-size: 0.84rem;
  color: var(--text-light);
  line-height: 1.65;
  margin: 0;
}

/* ── Featured card meta row ── */
.pf-featured-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.pf-featured-meta .pf-cat { margin-bottom: 0; }

.pf-client-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(26,110,245,0.08);
  color: #1a6ef5;
  border: 1px solid rgba(26,110,245,0.2);
}
.pf-client-badge a {
  color: inherit;
  text-decoration: none;
}
.pf-client-badge a:hover { text-decoration: underline; }

/* ── Bottom CTA ── */
.pf-cta {
  margin-top: 56px;
  text-align: center;
  position: relative;
  z-index: 1;
}
.pf-cta p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.pf-cta .btn-primary {
  background: linear-gradient(135deg, #6D28D9, #1a6ef5);
  border: none;
  padding: 14px 36px;
  box-shadow: 0 8px 30px rgba(109,40,217,0.35);
}
.pf-cta .btn-primary:hover {
  box-shadow: 0 12px 40px rgba(109,40,217,0.5);
  transform: translateY(-2px);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .pf-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-card:nth-child(1),
  .pf-card:nth-child(5) { grid-column: span 2; }
}
@media (max-width: 640px) {
  .pf-grid { grid-template-columns: 1fr; }
  .pf-card:nth-child(1),
  .pf-card:nth-child(5) { grid-column: span 1; }
  .pf-img-wrap,
  .pf-card:nth-child(1) .pf-img-wrap,
  .pf-card:nth-child(5) .pf-img-wrap { height: 200px; }
  .pf-view-btn { opacity: 1; transform: translateY(0); }
}