/* Projects index — 미디어아트 · 웅장한 아카이브 */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body.media-portfolio.projects-index-page {
  --pr-glow-a: rgba(61, 214, 195, 0.45);
  --pr-glow-b: rgba(232, 168, 124, 0.38);
  --pr-glow-c: rgba(196, 181, 253, 0.28);
}

body.media-portfolio.projects-index-page main.page-main {
  position: relative;
  z-index: 20;
}

/* 히어로 — 스펙터클 */
.pr-hero--spectacle {
  position: relative;
  padding: clamp(5.5rem, 14vw, 8.5rem) 1rem clamp(3rem, 8vw, 5rem);
  text-align: center;
  overflow: hidden;
}

.pr-hero--spectacle::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto;
  height: 85%;
  background: radial-gradient(
    ellipse 55% 45% at 50% 0%,
    rgba(61, 214, 195, 0.22),
    transparent 68%
  );
  pointer-events: none;
}

.pr-hero--spectacle::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(92%, 720px);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--pr-glow-a),
    var(--pr-glow-b),
    var(--pr-glow-c),
    transparent
  );
  opacity: 0.85;
  pointer-events: none;
}

.pr-hero-orbit {
  position: absolute;
  inset: 8% 10% auto;
  height: min(420px, 48vw);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 0 80px rgba(61, 214, 195, 0.08),
    inset 0 0 60px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  opacity: 0.55;
  animation: pr-orbit-pulse 14s ease-in-out infinite alternate;
}

.pr-hero-orbit--b {
  inset: 12% 18% auto;
  height: min(340px, 42vw);
  border-color: rgba(232, 168, 124, 0.12);
  animation-duration: 18s;
  animation-direction: alternate-reverse;
}

@keyframes pr-orbit-pulse {
  0% {
    opacity: 0.35;
    transform: scale(0.98);
  }
  100% {
    opacity: 0.65;
    transform: scale(1.02);
  }
}

.pr-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 52rem;
  margin: 0 auto;
}

.pr-hero-kicker {
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(142, 240, 228, 0.88);
  margin-bottom: 1rem;
}

.pr-title--spectacle {
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 4.25rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  background: linear-gradient(
    125deg,
    #f4f8ff 0%,
    #8ef0e4 28%,
    #e8a87c 55%,
    #c4b5fd 88%,
    #f0f4f8 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 40px rgba(0, 0, 0, 0.45));
  animation: pr-title-shimmer 18s ease-in-out infinite alternate;
}

@keyframes pr-title-shimmer {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

.pr-hero-lead {
  margin: 1.35rem auto 0;
  max-width: 38rem;
  font-size: 1.05rem;
  line-height: 1.85;
  color: rgba(210, 220, 235, 0.92);
}

.pr-hero-lead strong {
  color: #fff;
  font-weight: 600;
}

.pr-hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

.pr-stat {
  text-align: center;
  min-width: 5.5rem;
}

.pr-stat-num {
  display: block;
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  background: linear-gradient(135deg, #8ef0e4, #e8a87c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pr-stat-label {
  margin-top: 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(160, 180, 205, 0.75);
}

/* 필터 */
.pr-toolbar {
  width: min(92%, 1100px);
  margin: 0 auto;
  padding: 0 1rem clamp(2rem, 5vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.pr-filter-btn {
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(6, 10, 18, 0.45);
  color: rgba(200, 215, 230, 0.88);
  cursor: pointer;
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.pr-filter-btn:hover {
  border-color: rgba(61, 214, 195, 0.35);
  color: #fff;
}

.pr-filter-btn.is-active {
  border-color: rgba(61, 214, 195, 0.55);
  color: #fff;
  box-shadow:
    0 0 28px rgba(61, 214, 195, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    165deg,
    rgba(61, 214, 195, 0.18) 0%,
    rgba(6, 10, 18, 0.65) 100%
  );
}

/* 그리드 */
.pr-works {
  padding: 0 1rem clamp(4rem, 10vw, 6rem);
}

.pr-works-inner {
  width: min(92%, 1200px);
  margin: 0 auto;
}

.pr-work-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 3vw, 1.85rem);
}

@media (max-width: 900px) {
  .pr-work-grid {
    grid-template-columns: 1fr;
  }
}

.pr-work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: 22px;
  overflow: hidden;
  background: rgba(5, 9, 18, 0.52);
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow:
    0 24px 72px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px) saturate(1.06);
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.35s ease,
    box-shadow 0.4s ease;
}

.pr-work-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    120% 80% at 10% 0%,
    rgba(61, 214, 195, 0.12),
    transparent 55%
  );
  transition: opacity 0.4s ease;
}

.pr-work-card:hover {
  transform: translateY(-8px);
  border-color: rgba(61, 214, 195, 0.28);
  box-shadow:
    0 32px 90px rgba(0, 0, 0, 0.5),
    0 0 48px rgba(61, 214, 195, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.pr-work-card:hover::before {
  opacity: 1;
}

.pr-work-card[data-category="security"]:hover {
  border-color: rgba(232, 168, 124, 0.35);
  box-shadow:
    0 32px 90px rgba(0, 0, 0, 0.5),
    0 0 48px rgba(232, 168, 124, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.pr-work-card[data-category="security"]:hover::before {
  background: radial-gradient(
    120% 80% at 10% 0%,
    rgba(232, 168, 124, 0.14),
    transparent 55%
  );
  opacity: 1;
}

.pr-work-card[hidden] {
  display: none !important;
}

.pr-work-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(12, 18, 32, 0.9), rgba(4, 8, 16, 0.95));
}

.pr-work-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.pr-work-card:hover .pr-work-thumb img {
  transform: scale(1.05);
}

.pr-work-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(4, 8, 16, 0.92) 0%,
    transparent 45%
  );
  pointer-events: none;
}

.pr-work-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 2;
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.4rem 0.65rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(4, 8, 16, 0.72);
  backdrop-filter: blur(10px);
}

.pr-work-badge--team {
  color: rgba(168, 240, 228, 0.95);
  border-color: rgba(61, 214, 195, 0.35);
}

.pr-work-badge--security {
  color: rgba(248, 210, 180, 0.95);
  border-color: rgba(232, 168, 124, 0.4);
}

.pr-work-badge--personal {
  color: rgba(212, 200, 255, 0.95);
  border-color: rgba(196, 181, 253, 0.35);
}

.pr-work-badge--planning {
  color: rgba(216, 200, 255, 0.96);
  border-color: rgba(167, 139, 250, 0.45);
}

.pr-work-body {
  position: relative;
  z-index: 1;
  padding: 1.35rem 1.4rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pr-work-title {
  margin: 0;
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1.35;
  color: #f0f4f8;
  letter-spacing: -0.02em;
}

.pr-work-desc {
  margin: 0.65rem 0 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(195, 210, 228, 0.9);
  flex: 1;
}

.pr-work-tags {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pr-work-tags span {
  font-size: 0.68rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(168, 240, 228, 0.88);
}

.pr-work-foot {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.pr-work-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.16) 0%,
    rgba(61, 214, 195, 0.22) 45%,
    rgba(232, 168, 124, 0.18) 100%
  );
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.pr-work-link:hover {
  transform: translateY(-2px);
  box-shadow:
    0 12px 40px rgba(61, 214, 195, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.pr-work-link span[aria-hidden="true"] {
  font-size: 1.1em;
  opacity: 0.85;
}

/* 풀블리드 카드 (첫 번째 강조) — 선택적 */
.pr-work-card--feature {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: stretch;
}

@media (max-width: 900px) {
  .pr-work-card--feature {
    flex-direction: column;
  }
}

.pr-work-card--feature .pr-work-thumb {
  flex: 0 0 min(42%, 380px);
  aspect-ratio: auto;
  min-height: 200px;
}

@media (max-width: 900px) {
  .pr-work-card--feature .pr-work-thumb {
    flex: none;
    aspect-ratio: 16 / 9;
    min-height: 0;
  }
}

.pr-work-card--feature .pr-work-body {
  justify-content: center;
}

/* 푸터 스트립 */
.pr-page-footer {
  text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem) 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: rgba(150, 170, 195, 0.75);
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.pr-back-home {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(142, 240, 228, 0.85);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 214, 195, 0.35);
  padding-bottom: 0.15rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.pr-back-home:hover {
  color: #fff;
  border-color: rgba(142, 240, 228, 0.7);
}