/* ============================================
   Ocean Path — Fanned Card Deck
   ============================================ */
#path-ocean {
  background: var(--ocean-deep);
  overflow: hidden;
}

/* Depth gradient (fixed background layer) */
.ocean-depth-bg {
  position: fixed;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(30,95,140,0.4) 0%,
    var(--ocean-deep) 40%,
    #041230 100%
  );
  pointer-events: none;
  z-index: 0;
  display: none;
}

[data-active-path="ocean"] .ocean-depth-bg { display: block; }

/* Bubble canvas (fixed background layer) */
.bubble-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  display: none;
}

[data-active-path="ocean"] .bubble-canvas { display: block; }

/* ---- Card Deck Section ---- */
.card-deck-section {
  position: relative;
  z-index: 5;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: calc(5rem + env(safe-area-inset-top, 0px)) 2rem 2rem;
  box-sizing: border-box;
  gap: 2rem;
}

/* ---- Header ---- */
.deck-header {
  text-align: center;
  margin-top: auto;
  z-index: 10;
  transition: opacity 0.4s ease;
}

.deck-title {
  color: var(--ocean-foam);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.deck-subtitle {
  color: rgba(255,255,255,0.65);
  font-size: clamp(0.9rem, 1.8vw, 1.15rem);
  max-width: 600px;
  margin: 0 auto;
}

/* ---- Deck container ---- */
.card-deck {
  position: relative;
  width: 100%;
  max-width: 1100px;
  height: 420px;
  /* Cards are positioned via left offset + rotation */
}

/* ---- Individual card ---- */
.deck-card {
  /* Spread cards horizontally: centered on 5 cards */
  --card-offset: calc((var(--card-index) - 2) * 100px);
  --card-rotation: calc((var(--card-index) - 2) * 5deg);

  position: absolute;
  left: calc(50% + var(--card-offset));
  bottom: 0;
  width: 260px;
  height: 370px;
  margin-left: -130px;

  transform-origin: 50% 100%;
  transform: rotate(var(--card-rotation));
  will-change: transform;

  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
              z-index 0s;
  cursor: pointer;
  z-index: calc(var(--card-index) + 1);
}

.deck-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;

  background: linear-gradient(
    170deg,
    rgb(20, 60, 120) 0%,
    rgb(10, 36, 99) 50%,
    rgb(6, 22, 60) 100%
  );
  border: 2px solid rgba(184,230,245,0.25);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4),
              inset 0 1px 0 rgba(184,230,245,0.1);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Holographic shimmer on hover */
.deck-card-inner::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    transparent 30%,
    rgba(61,157,217,0.15) 45%,
    rgba(184,230,245,0.2) 50%,
    rgba(61,157,217,0.15) 55%,
    transparent 70%
  );
  background-size: 200% 200%;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* ---- Card header (title + type badge) ---- */
.card-header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid rgba(184,230,245,0.12);
  flex-shrink: 0;
}

.card-tab-title {
  color: var(--ocean-foam);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.card-type {
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(184,230,245,0.8);
  background: rgba(61,157,217,0.2);
  border: 1px solid rgba(184,230,245,0.15);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- Card image frame (like a Pokemon card art box) ---- */
.card-image-frame {
  position: relative;
  z-index: 2;
  flex: 1;
  margin: 0.4rem 0.5rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(184,230,245,0.12);
  background: rgb(6, 16, 40);
}

.card-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

/* ---- Card footer (label bar at bottom) ---- */
.card-footer {
  position: relative;
  z-index: 2;
  padding: 0.45rem 0.8rem;
  border-top: 1px solid rgba(184,230,245,0.12);
  text-align: center;
  flex-shrink: 0;
}

.card-footer-label {
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(184,230,245,0.6);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---- "More details" button ---- */
.card-detail-btn {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(61,157,217,0.3);
  color: var(--ocean-foam);
  border: 1px solid rgba(184,230,245,0.25);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.card-detail-btn:hover {
  background: rgba(61,157,217,0.5);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(61,157,217,0.2);
}

/* ---- Hover: dim siblings, glow active card ---- */
.deck-card {
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 0.4s ease,
              filter 0.4s ease;
}

/* When a card is directly hovered, dim ALL cards + header */
.card-deck:has(.deck-card:hover) .deck-card {
  opacity: 0.35;
  filter: brightness(0.5) saturate(0.4);
}

.card-deck-section:has(.deck-card:hover) .deck-header {
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* Then un-dim the actual hovered card and make it glow */
.card-deck:has(.deck-card:hover) .deck-card:hover {
  opacity: 1;
  filter: brightness(1.1) saturate(1.2);
  transform: rotate(var(--card-rotation)) scale(1.1);
  z-index: 20;
}

.deck-card:hover .deck-card-inner::before {
  opacity: 1;
}

.deck-card:hover .deck-card-inner {
  border-color: rgba(184,230,245,0.6);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5),
              0 0 30px rgba(61,157,217,0.35),
              0 0 60px rgba(61,157,217,0.15),
              inset 0 1px 0 rgba(184,230,245,0.2);
}

.deck-card:hover .card-image-frame img {
  transform: scale(1.05);
}

.deck-card:hover .card-image-frame {
  border-color: rgba(184,230,245,0.3);
}

/* ---- Shared preview panel below deck ---- */
.deck-preview {
  position: relative;
  z-index: 30;
  text-align: center;
  margin-top: 2rem;
  padding: 1.2rem 2rem;
  background: rgba(10, 36, 99, 0.4);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(184,230,245,0.15);
  border-radius: 16px;
  max-width: 500px;
  min-height: 90px;
  transition: opacity 0.3s ease;
}

.deck-preview-title {
  color: var(--ocean-foam);
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
}

.deck-preview-desc {
  color: rgba(255,255,255,0.75);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 0.6rem;
}

.deck-preview-btn {
  margin-top: 0.3rem;
}

/* ---- Detail overlay (opened on click) ---- */
.card-detail {
  display: none;
}

.deck-detail-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--ocean-light) transparent;

  background: rgba(10, 36, 99, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: none;
  border-radius: 0;
  padding: 3rem 4rem;
  box-sizing: border-box;

  color: var(--white);
  z-index: 1001;

  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  transition: opacity 0.4s ease,
              transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.deck-detail-overlay.open {
  opacity: 1;
  pointer-events: all;
  transform: scale(1);
}

.deck-detail-overlay > * {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.deck-detail-overlay h3 {
  color: var(--ocean-foam);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  margin-bottom: 0.8rem;
}

.deck-detail-overlay p {
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.deck-detail-overlay ul {
  color: rgba(255,255,255,0.85);
  padding-left: 1.2rem;
  margin-bottom: 1rem;
}

.deck-detail-overlay li {
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

/* Tags in detail */
.deck-detail-overlay .tag {
  background: rgba(61,157,217,0.3);
  color: var(--ocean-foam);
  border: 1px solid rgba(184,230,245,0.2);
}

/* Gallery in detail */
.deck-detail-overlay .panel-gallery {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.deck-detail-overlay .panel-gallery img {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid rgba(184,230,245,0.15);
  flex-shrink: 0;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.deck-detail-overlay .panel-gallery img:hover {
  transform: scale(1.08);
  border-color: var(--ocean-foam);
}

/* Close button */
.deck-detail-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(184,230,245,0.2);
  background: rgba(10, 36, 99, 0.6);
  color: var(--ocean-foam);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 5;
}

.deck-detail-close:hover {
  background: rgba(61,157,217,0.4);
  transform: scale(1.1);
}

/* Badge */
.deck-detail-overlay .panel-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(255,215,0,0.3), rgba(255,180,0,0.2));
  color: #ffd700;
  border: 1px solid rgba(255,215,0,0.4);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

/* Reflection blockquote */
.deck-detail-overlay .panel-reflection {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-left: 3px solid var(--ocean-foam);
  background: rgba(30,95,140,0.2);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
}

/* ---- Presentation list in detail overlay ---- */
.card-presentations {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(184,230,245,0.12);
}

.card-presentations h4 {
  color: var(--ocean-foam);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.card-presentations ul {
  list-style: none;
  padding-left: 0;
}

.card-presentations li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.6rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
  font-size: 0.9rem;
}

.card-presentations li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--ocean-foam);
}

.card-presentations li strong {
  color: var(--ocean-foam);
}

.tag-small {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  vertical-align: middle;
  opacity: 0.7;
}

/* ---- Presentation links ---- */
.pres-link {
  display: inline-block;
  margin-left: 0.5rem;
  font-size: 0.8rem;
  color: var(--ocean-foam);
  text-decoration: none;
  border: 1px solid rgba(184,230,245,0.25);
  padding: 0.15rem 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.pres-link:hover {
  background: rgba(61,157,217,0.3);
  border-color: var(--ocean-foam);
}

/* ---- Embedded presentation/PDF ---- */
.pres-embed {
  margin-top: 1.5rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(184,230,245,0.15);
}

.pres-embed h5 {
  color: var(--ocean-foam);
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  padding: 0.8rem 1rem;
  background: rgba(10, 36, 99, 0.6);
  border-bottom: 1px solid rgba(184,230,245,0.1);
}

.pres-embed iframe {
  display: block;
  border: none;
}

.pres-date {
  float: right;
  font-size: 0.8rem;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  font-style: italic;
}

/* ---- Backdrop when detail is open ---- */
.deck-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 18, 48, 0.7);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.deck-backdrop.visible {
  opacity: 1;
  pointer-events: all;
}