/* ─────────────────────────────────────────────────────────────
   ALWIN — Portfolio / Projects page (portfolio.html)
   Extends alwin.css / style.css tokens. RTL-first, Vazirmatn.
───────────────────────────────────────────────────────────── */

/* ─── active nav ─── */
html[lang="fa"] .body-portfolio .main-menu > ul > li > a.active {
  color: var(--alwin-primary);
  position: relative;
}
html[lang="fa"] .body-portfolio .main-menu > ul > li > a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  inset-inline-start: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background-color: var(--alwin-primary);
}

/* ─── hero ─── */
.portfolio-hero-area .section-header {
  max-width: 920px;
}
.portfolio-hero-area .section-title {
  margin-bottom: 0;
}
.portfolio-hero-area .portfolio-hero-title {
  font-size: clamp(1.65rem, 3.8vw, 2.75rem);
  white-space: nowrap;
  line-height: 1.2;
  max-width: 100%;
}
.portfolio-hero-area .text-wrapper {
  margin-top: 22px;
  max-width: 680px;
}
.portfolio-hero-area .text-wrapper .text {
  font-size: 18px;
  line-height: 1.9;
  color: var(--alwin-gray);
}
@media (max-width: 767px) {
  .portfolio-hero-area .text-wrapper .text {
    font-size: 16px;
  }
}

.portfolio-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 32px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.portfolio-hero-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.portfolio-hero-stat .num {
  font-size: 28px;
  font-weight: 700;
  color: var(--alwin-primary);
  line-height: 1;
}
.portfolio-hero-stat .lbl {
  font-size: 14px;
  color: var(--alwin-gray);
}

/* ─── filter bar ─── */
.portfolio-filter-area {
  padding-top: 12px;
  padding-bottom: 8px;
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: var(--alwin-gray-light);
  padding: 8px;
  border-radius: 999px;
  width: fit-content;
  max-width: 100%;
}

@media (max-width: 767px) {
  .portfolio-filters {
    border-radius: 20px;
    width: 100%;
  }
}

.portfolio-filter-btn {
  appearance: none;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--secondary);
  padding: 12px 20px;
  border-radius: 999px;
  transition: background-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}

.portfolio-filter-btn:hover {
  color: var(--primary);
}

.portfolio-filter-btn.is-active {
  background: var(--alwin-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(0, 67, 133, 0.25);
}

.portfolio-filter-btn .count {
  font-size: 12px;
  opacity: 0.75;
  margin-inline-start: 4px;
}

.portfolio-filter-btn__name {
  unicode-bidi: isolate;
}

.portfolio-filter-btn.is-active .count {
  opacity: 0.85;
}

/* ─── grid area ─── */
.portfolio-grid-area {
  padding-top: 40px;
}

.portfolio-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.portfolio-result-count {
  font-size: 15px;
  color: var(--alwin-gray);
  margin: 0;
}

.portfolio-result-count strong {
  color: var(--primary);
  font-weight: 700;
}

/* Uniform project grid — equal 4:3 cards */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

@media (max-width: 1199px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 575px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

/* ─── project card ─── */
.project-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  background: #111;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.65s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease;
}

.project-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card.is-hidden {
  display: none !important;
}

.project-card:hover {
  box-shadow: 0 28px 56px rgba(17, 17, 17, 0.22);
}

.project-card__link {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.project-card__media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #f2f4f6;
}

.project-card__media picture {
  display: block;
  width: 100%;
  height: 100%;
}

.project-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  transition: transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.project-card:hover .project-card__media img {
  transform: scale(1.08);
}

/* dark gradient overlay */
.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(17, 17, 17, 0) 0%,
    rgba(17, 17, 17, 0.12) 40%,
    rgba(17, 17, 17, 0.88) 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}

.project-card:hover .project-card__overlay,
.project-card:focus-within .project-card__overlay {
  opacity: 1;
}

.project-card__chip {
  position: absolute;
  top: 16px;
  inset-inline-start: 16px;
  z-index: 2;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  background: rgba(17, 17, 17, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 7px 14px;
  border-radius: 999px;
  transition: background-color 0.3s ease;
}

.project-card:hover .project-card__chip {
  background: var(--alwin-primary);
}

.project-card__content {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  z-index: 2;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  transform: translateY(18px);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.project-card:hover .project-card__content,
.project-card:focus-within .project-card__content {
  opacity: 1;
  transform: translateY(0);
}

.project-card__title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.45;
  color: #fff;
  margin: 0;
  letter-spacing: 0;
}

@media (max-width: 991px) {
  .project-card__title {
    font-size: 17px;
  }
}

.project-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.project-card__meta .loc::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--alwin-blue);
  margin-inline-end: 8px;
  vertical-align: middle;
}

.project-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--alwin-primary);
  transition: background-color 0.25s ease;
}

.project-card__cta i {
  font-size: 11px;
  transition: transform 0.25s ease;
}

.project-card:hover .project-card__cta {
  background: var(--alwin-blue);
}

html[dir="rtl"] .project-card:hover .project-card__cta i {
  transform: translateX(3px);
}

/* touch devices: keep overlay readable without hover */
@media (hover: none) {
  .project-card__overlay {
    opacity: 1;
    background: linear-gradient(
      180deg,
      rgba(17, 17, 17, 0) 42%,
      rgba(17, 17, 17, 0.8) 100%
    );
  }
  .project-card__content {
    opacity: 1;
    transform: none;
  }
  .project-card__chip {
    background: var(--alwin-primary);
  }
}

.portfolio-empty {
  text-align: center;
  color: var(--alwin-gray);
  font-size: 15px;
  padding: 60px 20px;
  border: 1px dashed var(--border);
  border-radius: 20px;
}

.portfolio-loadmore-wrap {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}

.portfolio-loadmore-wrap[hidden],
.portfolio-empty[hidden] {
  display: none !important;
}