/* ═══════════════════════════════════════════════════════════════
   PORTFOLIO PAGE — Premium n x 4 Uniform Grid
   Clean, modern, and technical presentation.
   ═══════════════════════════════════════════════════════════════ */

:root {
  --grid-gap: 24px;
  --card-radius: 12px;
  --card-bg: #ffffff;
  --card-border: rgba(15, 23, 42, 0.08);
  --card-shadow: 0 4px 20px -4px rgba(15, 23, 42, 0.04);
  --card-shadow-hover: 0 24px 48px -8px rgba(15, 23, 42, 0.12);
  --accent-red: #be2b28;
}

/* 1. Section Header & Layout */
.portfolio-section {
  padding: var(--section-padding) 0 !important;
  background: #ffffff;
  position: relative;
}

.portfolio-main-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 30px;
}

/* 2. Advanced Controls */
.portfolio-controls-wrapper {
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.portfolio-search-box {
  width: 100%;
  max-width: 600px;
  position: relative;
}

.portfolio-search-box input {
  width: 100%;
  padding: 18px 24px 18px 56px;
  border-radius: 100px;
  border: 1px solid var(--ips-border);
  background: var(--ips-white);
  font-size: 1rem;
  transition: all 0.4s var(--ease-out);
  box-shadow: var(--shadow-sm);
}

.portfolio-search-box i {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ips-red);
  font-size: 1.2rem;
}

.portfolio-search-box input:focus {
  border-color: var(--ips-red);
  box-shadow: 0 0 0 5px rgba(190, 43, 40, 0.1);
}

.portfolio-filters-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 6px;
  background: transparent;
  border-radius: 100px;
  border: 1px solid var(--ips-border);
}

.portfolio-filters li {
  padding: 10px 22px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ips-muted);
  cursor: pointer;
  border-radius: 100px;
  transition: all 0.3s var(--ease-out);
  display: flex;
  align-items: center;
  gap: 8px;
}

.portfolio-filters li .count {
  font-size: 0.7rem;
  opacity: 0.6;
  background: rgba(15, 23, 42, 0.08);
  padding: 2px 8px;
  border-radius: 10px;
}

.portfolio-filters li:hover {
  color: var(--ips-red);
  background: rgba(190, 43, 40, 0.05);
}

.portfolio-filters li.filter-active {
  background: var(--ips-red);
  color: white;
  box-shadow: 0 4px 12px rgba(190, 43, 40, 0.3);
}

.portfolio-filters li.filter-active .count {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  opacity: 1;
}

/* 3. The Responsive Flex Grid (Centered) */
.portfolio-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  /* This centers the items, including the last row */
  gap: 0;
  /* Managed by item padding */
  position: relative;
  margin: 0 auto;
  max-width: 1400px;
  /* min-height: 400px; - Removed to prevent blank space when few items exist */
  transition: min-height 0.3s ease;
}

.portfolio-item {
  width: 25%;
  /* 4 columns */
  padding: 10px;
  align-self: flex-start;
  /* Prevents vertical stretching */
  /* Flexbox handles the alignment automatically now */
}

@media (max-width: 992px) {
  .portfolio-item {
    width: 33.333%;
  }
}

@media (max-width: 768px) {
  .portfolio-item {
    width: 50%;
  }
}

@media (max-width: 480px) {
  .portfolio-item {
    width: 100%;
  }
}

/* 4. The Premium Portfolio Card */
.portfolio-card {
  display: block;
  position: relative;
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  /* height: 100%; */
  text-decoration: none;
}

.portfolio-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  /* Ensures uniform card size */
  overflow: hidden;
  background: #f8fafc;
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  /* Fill the aspect-ratio container */
  display: block;
  object-fit: cover;
  /* Crop to fill instead of leaving gaps */
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  filter: grayscale(10%) brightness(0.98);
}

/* Technical Hover System */
.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
      rgba(15, 23, 42, 0.95) 0%,
      rgba(15, 23, 42, 0.5) 50%,
      transparent 100%);
  opacity: 0;
  transition: all 0.4s var(--ease-out);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  backdrop-filter: blur(0px);
}

.overlay-content {
  transform: translateY(15px);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.cat-tag {
  display: inline-flex;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 4px;
  margin-bottom: 10px;
  backdrop-filter: blur(8px);
  letter-spacing: 0.05em;
}

.overlay-content h3 {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}

.view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ips-red);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

/* Hover Effects */
.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
  border-color: rgba(190, 43, 40, 0.3);
}

.portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.08);
  filter: grayscale(0%) brightness(1);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
  backdrop-filter: blur(2px);
}

.portfolio-card:hover .overlay-content {
  transform: translateY(0);
}

/* 5. Responsive Configuration */
@media (max-width: 1200px) {
  .portfolio-item {
    width: 33.333%;
    padding: 8px;
  }

  .portfolio-container {
    margin: 0 -8px;
  }
}

@media (max-width: 991px) {
  .portfolio-section {
    padding: var(--section-padding-mobile) 0 !important;
  }

  .portfolio-item {
    width: 50%;
    padding: 6px;
  }

  .portfolio-container {
    margin: 0 -6px;
  }

  .portfolio-main-container {
    padding: 0 20px;
  }
}

@media (max-width: 500px) {
  .portfolio-no-results {
    padding: var(--section-padding-mobile) 20px;
  }

  .portfolio-item {
    padding: 5px;
  }

  /* More compact on mobile */
  .portfolio-container {
    margin: 0 -5px;
  }

  .portfolio-filters li {
    padding: 8px 16px;
    font-size: 0.8rem;
  }

  .overlay-content h3 {
    font-size: 0.9rem;
  }

  .cat-tag {
    padding: 2px 8px;
    font-size: 0.6rem;
  }
}

/* 6. Status & Messaging */
.portfolio-status {
  text-align: center;
  margin-bottom: 30px;
  font-size: 0.85rem;
  color: var(--ips-muted);
  font-family: monospace;
  letter-spacing: 0.05em;
}

.portfolio-no-results {
  text-align: center;
  padding: var(--section-padding) 20px;
  display: none;
}

.portfolio-no-results i {
  font-size: 3rem;
  color: #e2e8f0;
  margin-bottom: 20px;
  display: block;
}