/* ============================================================
   AVISHKAARI PORTFOLIO — PROJECTS PAGE
   ============================================================ */

/* ---- Page Hero ---- */
.page-hero {
  padding: calc(var(--nav-h) + 72px) var(--section-px) 48px;
}
.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 12vw, 140px);
  line-height: 0.88;
  color: var(--text);
}
.page-hero-sub {
  max-width: 340px;
  font-size: 15px;
  color: var(--text2);
  line-height: 1.7;
  padding-bottom: 8px;
}

/* ---- Filter Bar ---- */
.filter-bar {
  padding: 0 var(--section-px) 40px;
  max-width: calc(var(--max-w) + var(--section-px) * 2);
  margin: 0 auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-count {
  font-family: var(--font-head);
  font-size: 12px;
  color: var(--text3);
  margin-left: auto;
}
.filter-btn {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  transition:
    background var(--t-fast),
    border-color var(--t-fast),
    color var(--t-fast),
    transform var(--t-fast) var(--ease-out);
}
.filter-btn:hover {
  border-color: var(--border2);
  color: var(--text);
  transform: translateY(-1px);
}
.filter-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--glow);
}

/* ---- All Projects Grid ---- */
.all-projects-wrap {
  padding: 0 var(--section-px) var(--section-py);
  max-width: calc(var(--max-w) + var(--section-px) * 2);
  margin: 0 auto;
}
.all-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

/* ---- Project Card ---- */
.project-card {
  position: relative;
  border-radius: var(--card-radius);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  will-change: transform;
  transition:
    transform var(--t-med) var(--ease-out),
    box-shadow var(--t-med) ease,
    border-color var(--t-med) ease;
}
.project-card:hover {
  transform: translateY(-7px);
  box-shadow:
    0 24px 64px rgba(0,0,0,0.45),
    0 0 0 1px var(--border2),
    0 0 60px var(--glow2);
  border-color: var(--border2);
}
.card-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg2);
}
.card-thumb-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 52px);
  letter-spacing: 4px;
  color: rgba(255,255,255,0.045);
  transition: transform 0.7s var(--ease-out), filter 0.5s ease;
}
.project-card:hover .card-thumb-inner {
  transform: scale(1.06);
  filter: brightness(1.15);
}
.card-gradient {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 65%;
  background: linear-gradient(to top, rgba(6,6,8,0.92), transparent);
  pointer-events: none;
}
.card-play-icon {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%) scale(0.75);
  width: 50px; height: 50px;
  border-radius: 50%;
  background: rgba(var(--accent-rgb), 0.12);
  border: 1.5px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--t-med) ease, transform var(--t-med) var(--ease-out);
  box-shadow: 0 0 28px var(--glow);
}
.project-card:hover .card-play-icon {
  opacity: 1;
  transform: translate(-50%,-50%) scale(1);
}
.card-body {
  padding: 18px 20px 22px;
}
.card-cat {
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 7px;
}
.card-title {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 7px;
  line-height: 1.2;
}
.card-desc {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.55;
  margin-bottom: 8px;
}
.card-year {
  font-family: var(--font-head);
  font-size: 11px;
  color: var(--text3);
  letter-spacing: 1px;
}
.platform-badge {
  position: absolute;
  top: 10px; right: 10px;
  font-family: var(--font-head);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 20px;
  z-index: 2;
}
.youtube-badge { background: rgba(255,68,68,0.15); color: #ff4444; border: 1px solid rgba(255,68,68,0.3); }
.vimeo-badge   { background: rgba(26,183,234,0.15); color: #1ab7ea; border: 1px solid rgba(26,183,234,0.3); }

/* Filter animation */
.project-card.filtered-out {
  opacity: 0;
  transform: scale(0.94) translateY(10px);
  pointer-events: none;
}
.project-card.filtered-in {
  opacity: 1;
  transform: none;
}

/* ---- LIGHTBOX ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px var(--section-px);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--t-med) var(--ease-out),
    visibility var(--t-med);
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6,6,8,0.94);
  backdrop-filter: blur(24px) saturate(130%);
  -webkit-backdrop-filter: blur(24px);
}

.lb-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 16px;
  overflow: hidden;
  transform: scale(0.88) translateY(20px);
  transition: transform var(--t-slow) var(--ease-out);
  scrollbar-width: thin;
  scrollbar-color: var(--accent3) transparent;
}
.lightbox.open .lb-inner {
  transform: none;
}

.lb-video {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  position: relative;
  overflow: hidden;
}
.lb-video iframe {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  border: none;
}

.lb-info {
  padding: 24px 28px 30px;
}
.lb-cat {
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.lb-title {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.lb-desc {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 20px;
}
.lb-tools {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lb-close {
  position: absolute;
  top: 16px; right: 16px;
  z-index: 10;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--text2);
  line-height: 1;
  transition:
    background var(--t-fast),
    color var(--t-fast),
    transform var(--t-med) var(--ease-out);
}
.lb-close:hover {
  background: var(--surface3);
  color: var(--text);
  transform: rotate(90deg);
}

/* Touch swipe hint (mobile) */
.lb-swipe-hint {
  display: none;
  text-align: center;
  font-family: var(--font-head);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text3);
  padding: 8px 0 16px;
}
@media (max-width: 768px) {
  .lb-swipe-hint { display: block; }
  .all-projects-grid { grid-template-columns: repeat(2, 1fr); }
  .lb-inner { border-radius: 12px; }
}
@media (max-width: 500px) {
  .all-projects-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   INFINITE SCROLL / LOAD MORE
   ============================================================ */

.load-more-wrap {
  display: flex;
  justify-content: center;
  padding: 40px 0 20px;
  gap: 16px;
  flex-direction: column;
  align-items: center;
}

.load-more-btn {
  min-width: 220px;
  padding: 14px 32px;
  font-size: 13px;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.load-more-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb),0.08), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.load-more-btn:hover::after { transform: translateX(100%); }

/* Card year tag */
.card-year {
  font-family: var(--font-head);
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 1.5px;
  font-weight: 600;
  display: block;
  margin-top: 6px;
}

/* Platform badges in grid cards (already defined in home.css but scoped) */
.project-card .card-thumb { position: relative; }

/* Scroll sentinel (invisible trigger) */
#scroll-sentinel { height: 1px; margin-top: -1px; }

/* Empty state */
.projects-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--text3);
  font-family: var(--font-head);
  font-size: 14px;
}

/* ---- Detail Page Arrow (appears on hover for projects with a detail page) ---- */
.card-detail-arrow {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  opacity: 0;
  transform: scale(0.6) translateY(6px);
  transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.16,1,0.3,1);
  z-index: 3;
  box-shadow: 0 4px 20px rgba(57,255,20,0.4);
}
.project-card:hover .card-detail-arrow {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* ---- Card thumbnail image ---- */
.card-thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.project-card:hover .card-thumb-img {
  transform: scale(1.05);
}