/* ============================================================
   PORTFOLIO PAGE
   ============================================================ */

/* --- Active nav link --- */
.nav__portfolio-active {
  color: var(--accent) !important;
}

/* --- Page header --- */
.pf-page-header {
  padding: 130px 0 48px;
  text-align: center;
}

.pf-title {
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 800;
  letter-spacing: -3px;
  margin: 12px 0 16px;
  line-height: 1;
}

.pf-title-dot { color: var(--accent); }

.pf-subtitle {
  color: var(--text-3);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Filters --- */
.pf-filters-bar {
  padding: 0 0 40px;
}

.pf-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pf-filter-btn {
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: 1px solid var(--border-1);
  background: transparent;
  color: var(--text-3);
  transition: all 0.2s;
}

.pf-filter-btn:hover { color: var(--text-1); border-color: #444; }

.pf-filter-btn.is-active {
  border-color: transparent;
  color: #000;
  font-weight: 600;
}

/* --- Grid --- */
.pf-section {
  padding-bottom: 80px;
}

.pf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 20px;
}

/* --- Card --- */
.pf-card {
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: 8px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.pf-card:hover {
  transform: translateY(-4px);
  border-color: #333;
}

.pf-card__accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}

.pf-card__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.pf-tag {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 3px;
}

.pf-card__badges {
  display: flex;
  gap: 6px;
}

.pf-badge {
  font-size: 10px;
  color: #555;
  background: var(--bg-0);
  padding: 3px 7px;
  border-radius: 3px;
}

.pf-card__title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.35;
}

.pf-card__desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.55;
  margin: 0 0 20px;
}

.pf-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pf-card__domain { font-size: 11px; color: #555; }

.pf-card__cta {
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* --- Modal --- */
.pf-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.pf-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.pf-modal {
  background: var(--bg-1);
  border: 1px solid #222;
  border-radius: 10px;
  width: 100%;
  max-width: 780px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  transition: transform 0.25s ease;
}

.pf-overlay.is-open .pf-modal {
  transform: translateY(0);
}

.pf-modal__header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-1);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.pf-modal__meta {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.pf-modal__title {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.pf-modal__close {
  background: var(--bg-0);
  border: none;
  color: var(--text-3);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  flex-shrink: 0;
  margin-left: 12px;
  transition: color 0.2s;
}

.pf-modal__close:hover { color: var(--text-1); }

.pf-modal__body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.pf-preview {
  background: var(--bg-0);
  border: 1px solid var(--border-1);
  border-radius: 6px;
  padding: 20px;
}

.pf-preview pre {
  margin: 0;
  font-size: 12px;
  line-height: 1.75;
  color: var(--text-3);
  white-space: pre-wrap;
  font-family: var(--font-mono);
}


/* --- Modal footer --- */
.pf-modal__footer {
  margin-top: 16px;
}

.pf-btn-drive {
  display: inline-block;
  width: 100%;
  padding: 12px;
  border-radius: 6px;
  color: #000;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  text-align: center;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: opacity 0.2s;
}

.pf-btn-drive:hover { opacity: 0.85; }

.pf-no-link {
  font-size: 12px;
  color: #555;
  text-align: center;
  margin: 0;
  padding: 8px 0;
}

.pf-no-link a {
  color: var(--accent);
  text-decoration: none;
}

.pf-no-link a:hover { text-decoration: underline; }

/* --- Cases CTA (in index.html) --- */
.cases-cta {
  text-align: center;
  padding-top: 2.5rem;
}

.cases-cta p {
  color: var(--text-3);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 720px) {
  .pf-grid { grid-template-columns: 1fr; }
  .pf-title { letter-spacing: -2px; }
  .pf-page-header { padding-top: 110px; }
}

@media (max-width: 540px) {
  .pf-modal { max-height: 95vh; }
  .pf-modal__header { padding: 16px; }
  .pf-modal__body { padding: 16px; }
}