/* ============================================================================
 * LivingBinder — 3D WebGL binder you flip through
 * Apple Liquid Glass surfaces (translucent panels, backdrop-blur, specular
 * edges) layered over a soft studio backdrop. Light + dark + reduced-motion.
 * ========================================================================== */

.lb {
  --lb-bg-1: #0c1322;
  --lb-bg-2: #182a4a;
  --lb-bg-3: #060a14;
  min-height: 100vh;
}

/* Studio backdrop that frames the binder. */
.lb-stage {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% -10%, rgba(120,170,255,0.22), transparent 55%),
    radial-gradient(80% 60% at 50% 120%, rgba(255,160,220,0.12), transparent 60%),
    linear-gradient(180deg, var(--lb-bg-1), var(--lb-bg-3));
  box-shadow: var(--cc-shadow-lg), inset 0 1px 0 rgba(255,255,255,0.06);
  isolation: isolate;
}

/* ---------- Hero / picker header ---------- */
.lb-hero {
  max-width: var(--cc-max);
  margin: 0 auto 22px;
}
.lb-hero h1 {
  font-size: clamp(28px, 4.4vw, 46px);
  letter-spacing: -0.022em;
  line-height: 1.04;
  margin: 6px 0 10px;
  background: linear-gradient(120deg, var(--cc-ink), var(--cc-accent) 130%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.lb-hero p {
  max-width: 60ch;
  color: var(--cc-ink-2);
  font-size: 16px;
  line-height: 1.55;
}
.lb-hero .lb-est {
  color: var(--cc-ink-3);
  font-size: 13px;
}

/* ---------- The 3D stage shell ---------- */
.lb-stage {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: clamp(520px, 72vh, 760px);
}

.lb-stage-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding: 16px 20px;
  position: relative; z-index: 3;
}

/* Frosted glass capsule used across the stage chrome. */
.lb-glass {
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.28), 0 10px 30px -16px rgba(0,0,0,0.6);
  border-radius: 16px;
}

.lb-set-id {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px;
}
.lb-set-id-logo { height: 30px; width: auto; max-width: 120px; object-fit: contain; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4)); }
.lb-set-name { color: #fff; font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }

/* Completion ring (radial) */
.lb-ring {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 16px 8px 10px;
}
.lb-ring-svg { width: 58px; height: 58px; transform: rotate(-90deg); flex: 0 0 auto; }
.lb-ring-bg { fill: none; stroke: rgba(255,255,255,0.14); stroke-width: 5; }
.lb-ring-fill {
  fill: none; stroke: url(#lb-ring-grad); stroke-width: 5; stroke-linecap: round;
  transition: stroke-dashoffset 1.1s var(--cc-ease-glass);
}
.lb-ring--count .lb-ring-fill { stroke-dashoffset: 0 !important; }
.lb-ring-text { display: flex; flex-direction: column; line-height: 1.1; }
.lb-ring-num { color: #fff; font-weight: 700; font-size: 20px; font-variant-numeric: tabular-nums; }
.lb-ring-lbl { color: rgba(255,255,255,0.62); font-size: 11px; letter-spacing: 0.02em; }

/* Canvas area */
.lb-canvas-wrap {
  position: relative;
  width: 100%;
  min-height: 0;
  grid-row: 2;
}
.lb-canvas { display: block; width: 100% !important; height: 100% !important; touch-action: none; }

.lb-loading {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7); font-size: 14px;
  flex-direction: column; gap: 14px;
}
.lb-spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.18);
  border-top-color: #7fb2ff;
  animation: lb-spin 0.9s linear infinite;
}
@keyframes lb-spin { to { transform: rotate(360deg); } }
.lb-error { color: #ffb3ad; text-align: center; max-width: 32ch; }

/* Bottom control bar (glass) */
.lb-stage-bottom {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  flex-wrap: wrap;
  padding: 16px 20px 20px;
  position: relative; z-index: 3;
}
.lb-ctrl {
  display: inline-flex; align-items: center; gap: 8px;
  height: 44px; padding: 0 18px;
  color: #fff; font-weight: 500; font-size: 14px;
  cursor: pointer; user-select: none;
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.28);
  transition: transform 0.18s var(--cc-ease-glass), background 0.2s ease, box-shadow 0.2s ease;
}
.lb-ctrl:hover { background: rgba(255,255,255,0.18); transform: translateY(-1px); }
.lb-ctrl:active { transform: scale(0.97); }
.lb-ctrl:disabled { opacity: 0.35; pointer-events: none; }
.lb-ctrl svg { width: 18px; height: 18px; }
.lb-ctrl--icon { width: 44px; padding: 0; justify-content: center; }

.lb-page-label {
  color: rgba(255,255,255,0.78);
  font-size: 13px; font-variant-numeric: tabular-nums;
  padding: 0 10px;
  min-width: 130px; text-align: center;
}

/* Owned-only / set completion toggle */
.lb-ctrl.is-on {
  background: linear-gradient(120deg, var(--cc-accent), #4ea3ff);
  border-color: rgba(255,255,255,0.4);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.4), 0 6px 20px -8px rgba(40,150,255,0.7);
}
.lb-owned-hint {
  width: 100%; text-align: center; color: rgba(255,255,255,0.5);
  font-size: 12px; margin: 2px 0 -4px;
}

/* ---------- Card detail slide-in sheet ---------- */
.lb-detail {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: min(340px, 86vw);
  padding: 22px 20px;
  transform: translateX(105%);
  transition: transform 0.5s var(--cc-ease-glass), opacity 0.3s ease;
  opacity: 0; pointer-events: none;
  z-index: 6;
  background: rgba(16,22,38,0.62);
  backdrop-filter: blur(30px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  border-left: 1px solid rgba(255,255,255,0.14);
  box-shadow: -30px 0 80px -30px rgba(0,0,0,0.8);
  display: flex; flex-direction: column; gap: 14px;
  overflow-y: auto;
}
.lb-detail.is-open { transform: none; opacity: 1; pointer-events: auto; }
.lb-detail-close {
  position: absolute; top: 12px; right: 14px;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18);
  color: #fff; font-size: 20px; line-height: 1; cursor: pointer;
}
.lb-detail-close:hover { background: rgba(255,255,255,0.22); }
.lb-detail-img { border-radius: 14px; overflow: hidden; box-shadow: 0 20px 50px -20px rgba(0,0,0,0.8); }
.lb-detail-img img { width: 100%; display: block; }
.lb-detail-num { color: rgba(255,255,255,0.6); font-size: 12px; letter-spacing: 0.02em; }
.lb-detail-name { color: #fff; font-size: 22px; margin: 2px 0 0; letter-spacing: -0.01em; }
.lb-badge {
  display: inline-block; align-self: flex-start;
  padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.lb-badge--owned { background: rgba(48,209,88,0.18); color: #4ade80; border: 1px solid rgba(48,209,88,0.4); }
.lb-badge--missing { background: rgba(255,69,58,0.16); color: #ff938c; border: 1px solid rgba(255,69,58,0.4); }
.lb-detail-price {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 12px 14px; border-radius: 12px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
}
.lb-detail-price span { color: rgba(255,255,255,0.6); font-size: 13px; }
.lb-detail-price strong { color: #fff; font-size: 22px; font-variant-numeric: tabular-nums; }
.lb-detail-link { align-self: flex-start; }
.lb-detail-hint { color: rgba(255,255,255,0.45); font-size: 12px; line-height: 1.5; }

/* ---------- 2D fallback grid (no WebGL) ---------- */
.lb-fallback { padding: 22px; grid-row: 2; overflow-y: auto; }
.lb-fb-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 12px; max-width: var(--cc-max); margin: 0 auto;
}
.lb-fb-cell {
  position: relative; display: block; border-radius: 10px; overflow: hidden;
  aspect-ratio: 245 / 342; background: rgba(255,255,255,0.06);
  box-shadow: 0 8px 20px -12px rgba(0,0,0,0.7);
  transition: transform 0.2s var(--cc-ease-glass);
}
.lb-fb-cell:hover { transform: translateY(-3px) scale(1.03); }
.lb-fb-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }
.lb-fb--ghost img { filter: grayscale(1) brightness(0.5); opacity: 0.5; }
.lb-fb-num {
  position: absolute; bottom: 4px; left: 4px;
  background: rgba(0,0,0,0.6); color: #fff; font-size: 10px;
  padding: 1px 6px; border-radius: 6px; font-variant-numeric: tabular-nums;
}
.lb-fb-cell.lb-fb--spread { outline: 2px solid var(--cc-accent); outline-offset: 1px; }

/* ---------- Set picker grid ---------- */
.lb-picker {
  max-width: var(--cc-max); margin: 28px auto 0;
}
.lb-picker h2 { color: var(--cc-ink); font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
.lb-picker-sub { color: var(--cc-ink-3); font-size: 14px; margin: 0 0 18px; }
.lb-picker-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.lb-set-card {
  display: flex; flex-direction: column; gap: 10px;
  padding: 18px 16px; border-radius: 18px; text-decoration: none;
  background: var(--cc-glass);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border: 1px solid var(--cc-glass-line);
  box-shadow: var(--cc-shadow);
  transition: transform 0.24s var(--cc-ease-glass), box-shadow 0.24s ease;
  min-height: 150px;
}
.lb-set-card:hover { transform: translateY(-4px); box-shadow: var(--cc-shadow-md); }
.lb-set-card-logo { height: 54px; display: flex; align-items: center; }
.lb-set-card-logo img { max-height: 54px; max-width: 100%; object-fit: contain; }
.lb-set-card-name { color: var(--cc-ink); font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.lb-set-card-meta { color: var(--cc-ink-3); font-size: 12px; margin-top: auto; display: flex; justify-content: space-between; }
.lb-set-card-cta {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--cc-accent); font-size: 13px; font-weight: 600;
}

/* ---------- Eyebrow on dark stage ---------- */
.lb-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--cc-accent); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.lb-eyebrow svg { width: 15px; height: 15px; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .lb-spinner { animation: none; }
  .lb-ring-fill { transition: none; }
  .lb-set-card, .lb-fb-cell, .lb-ctrl, .lb-detail { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .lb-stage { min-height: clamp(460px, 64vh, 620px); }
  .lb-detail { width: 100%; }
  .lb-page-label { min-width: 0; }
  .lb-stage-top { gap: 10px; }
}