/* ============================================================
   AH Electrical — Projects Portfolio Frontend CSS
   ============================================================ */
:root {
  --ahp-primary: #1A8787;
  --ahp-accent:  #136060;
  --ahp-light:   #EAF5F5;
  --ahp-mid:     #C5E4E4;
  --ahp-dark:    #1C2B2B;
  --ahp-muted:   #4A6464;
  --ahp-radius:  12px;
  --ahp-shadow:  0 4px 24px rgba(26,135,135,0.12);
  --ahp-shadow-lg: 0 12px 48px rgba(26,135,135,0.18);
}

/* ── FILTER BAR ── */
.ahp-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 16px;
  background: #f8fafa;
  border: 1px solid #e0eded;
  border-radius: var(--ahp-radius);
}
.ahp-filter-btn {
  padding: 8px 18px;
  border-radius: 100px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  border: 1.5px solid #dce8e8;
  background: #fff;
  color: var(--ahp-muted);
  transition: all .2s;
  line-height: 1;
}
.ahp-filter-btn:hover {
  border-color: var(--ahp-primary);
  color: var(--ahp-primary);
  background: var(--ahp-light);
}
.ahp-filter-btn.active {
  background: var(--ahp-primary);
  border-color: var(--ahp-primary);
  color: #fff;
}

/* ── PROJECT GRID ── */
.ahp-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols-desktop, 3), 1fr);
  gap: 24px;
}
@media (max-width: 900px) {
  .ahp-grid { grid-template-columns: repeat(var(--cols-tablet, 2), 1fr); }
}
@media (max-width: 580px) {
  .ahp-grid { grid-template-columns: 1fr; }
  .ahp-filter-bar { gap: 6px; }
  .ahp-filter-btn { font-size: .78rem; padding: 7px 14px; }
}

/* ── PROJECT CARD ── */
.ahp-card {
  border-radius: var(--ahp-radius);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  background: #fff;
  border: 1.5px solid #e0eded;
}
.ahp-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--ahp-shadow-lg);
  border-color: var(--ahp-mid);
}
.ahp-card.hidden { display: none; }
.ahp-card-inner { display: block; text-decoration: none; color: inherit; }

.ahp-card-img {
  aspect-ratio: 16/10;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  background-color: var(--ahp-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.ahp-no-img { font-size: 3rem; opacity: .4; }
.ahp-cat-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--ahp-primary);
  color: #fff;
  font-size: .68rem;
  font-weight: 800;
  padding: 4px 11px;
  border-radius: 100px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.ahp-featured-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: #fff;
  color: var(--ahp-primary);
  font-size: .68rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: .04em;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
}

/* CARD OVERLAY STYLE */
.ahp-card.overlay .ahp-card-img {
  aspect-ratio: 4/3;
}
.ahp-card.overlay .ahp-card-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(transparent 40%, rgba(12,50,50,0.75));
  transition: opacity .3s;
}
.ahp-card.overlay:hover .ahp-card-img::after {
  background: linear-gradient(transparent 20%, rgba(12,50,50,0.85));
}

.ahp-card-body {
  padding: 20px;
}
.ahp-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ahp-dark);
  margin: 0 0 8px;
  line-height: 1.3;
}
.ahp-card-excerpt {
  font-size: .84rem;
  color: var(--ahp-muted);
  line-height: 1.6;
  margin: 0 0 12px;
}
.ahp-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #eef4f4;
}
.ahp-meta-item {
  font-size: .75rem;
  color: var(--ahp-muted);
  background: var(--ahp-light);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--ahp-mid);
}
.ahp-view-btn {
  font-size: .82rem;
  font-weight: 700;
  color: var(--ahp-primary);
  letter-spacing: .03em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .15s;
}
.ahp-card:hover .ahp-view-btn { gap: 8px; }

.ahp-no-projects {
  grid-column: 1/-1;
  text-align: center;
  padding: 48px;
  color: var(--ahp-muted);
  font-size: 1rem;
}

/* ============================================================
   CASE STUDY SINGLE PAGE
   ============================================================ */
.ahp-case-study { max-width: 1140px; margin: 0 auto; }

.ahp-cs-hero {
  width: 100%;
  aspect-ratio: 21/8;
  background-size: cover;
  background-position: center;
  border-radius: var(--ahp-radius);
  overflow: hidden;
  position: relative;
  margin-bottom: 40px;
}
.ahp-cs-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(transparent 20%, rgba(8,40,40,0.78));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 36px 40px;
}
.ahp-cs-cat {
  background: var(--ahp-primary);
  color: #fff;
  font-size: .72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: .08em;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 10px;
  width: fit-content;
}
.ahp-cs-title {
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin: 0 0 10px;
}
.ahp-cs-result-badge {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: .82rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 100px;
  display: inline-block;
  width: fit-content;
}

.ahp-cs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

/* SIDEBAR */
.ahp-cs-sidebar {
  background: #f8fafa;
  border: 1.5px solid #e0eded;
  border-radius: var(--ahp-radius);
  padding: 24px;
  position: sticky;
  top: 90px;
}
.ahp-cs-sidebar-title {
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ahp-primary);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ahp-light);
}
.ahp-cs-fact {
  display: flex;
  flex-direction: column;
  padding: 10px 0;
  border-bottom: 1px solid #eef4f4;
}
.ahp-cs-fact:last-of-type { border: none; }
.ahp-cs-fact-label {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #8aacac;
  margin-bottom: 3px;
}
.ahp-cs-fact-value {
  font-size: .9rem;
  font-weight: 600;
  color: var(--ahp-dark);
  line-height: 1.4;
}
.ahp-cs-back {
  display: block;
  margin-top: 18px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--ahp-primary);
  text-decoration: none;
  padding: 9px 0;
  border-top: 1px solid #e0eded;
}
.ahp-cs-back:hover { color: var(--ahp-accent); }

/* BODY */
.ahp-cs-section-title {
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--ahp-dark);
  margin: 28px 0 12px;
  letter-spacing: .02em;
}
.ahp-cs-text { color: var(--ahp-muted); font-size: .95rem; line-height: 1.75; }
.ahp-cs-text p { margin-bottom: 12px; }
.ahp-cs-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ahp-cs-list li {
  display: flex;
  gap: 10px;
  font-size: .9rem;
  color: var(--ahp-muted);
  line-height: 1.55;
}
.ahp-cs-list li::before {
  content: '→';
  color: var(--ahp-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* GALLERY */
.ahp-cs-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin: 28px 0;
}
.ahp-cs-gallery-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.ahp-cs-gallery-item.ahp-gallery-main {
  grid-column: 1 / -1;
  aspect-ratio: 16/7;
}
.ahp-cs-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ahp-gallery-label {
  position: absolute;
  bottom: 10px; left: 10px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: .68rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 100px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

/* RESULT BLOCK */
.ahp-cs-result-block {
  background: var(--ahp-light);
  border: 1.5px solid var(--ahp-mid);
  border-radius: var(--ahp-radius);
  padding: 28px;
  margin: 28px 0;
}
.ahp-cs-result-title {
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--ahp-primary);
  margin: 0 0 14px;
}
.ahp-cs-quote {
  font-size: .98rem;
  font-style: italic;
  color: var(--ahp-dark);
  line-height: 1.7;
  border-left: 3px solid var(--ahp-primary);
  padding-left: 16px;
  margin: 0 0 10px;
}
.ahp-cs-quote-attr {
  font-size: .78rem;
  color: #8aacac;
  margin: 0 0 14px;
}
.ahp-cs-result-text {
  font-size: .9rem;
  color: var(--ahp-muted);
  line-height: 1.65;
  margin: 0 0 12px;
}
.ahp-cs-stat-badge {
  display: inline-block;
  background: var(--ahp-primary);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  padding: 7px 16px;
  border-radius: 8px;
}

/* CTA */
.ahp-cs-cta-block {
  background: #fff;
  border: 1.5px solid #e0eded;
  border-radius: var(--ahp-radius);
  padding: 24px;
  margin-top: 24px;
  text-align: center;
}
.ahp-cs-cta-block p {
  font-size: .95rem;
  color: var(--ahp-muted);
  margin: 0 0 14px;
}
.ahp-cs-cta-btn {
  display: inline-block;
  background: var(--ahp-primary);
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  padding: 13px 30px;
  border-radius: 8px;
  text-decoration: none;
  transition: background .2s, transform .2s;
}
.ahp-cs-cta-btn:hover {
  background: var(--ahp-accent);
  transform: translateY(-2px);
  color: #fff;
  text-decoration: none;
}

/* RESPONSIVE — CASE STUDY */
@media (max-width: 820px) {
  .ahp-cs-layout { grid-template-columns: 1fr; }
  .ahp-cs-sidebar { position: static; }
  .ahp-cs-hero { aspect-ratio: 16/9; }
  .ahp-cs-gallery { grid-template-columns: 1fr 1fr; }
  .ahp-cs-gallery-item.ahp-gallery-main { grid-column: 1/-1; aspect-ratio: 16/9; }
}
@media (max-width: 500px) {
  .ahp-cs-gallery { grid-template-columns: 1fr; }
  .ahp-cs-hero-overlay { padding: 20px; }
}