:root { color-scheme: light dark; }
:root[data-bs-theme="dark"] {
  --sb-bg: #0b1020;
  --sb-text: #e7e9ee;
  --sb-muted: rgba(231,233,238,0.75);
  --sb-card-bg: rgba(255,255,255,0.03);
  --sb-card-border: rgba(255,255,255,0.10);
  --sb-hover: rgba(255,255,255,0.04);
}
:root[data-bs-theme="light"] {
  --sb-bg: #f6f7fb;
  --sb-text: #0b1020;
  --sb-muted: rgba(11,16,32,0.68);
  --sb-card-bg: rgba(255,255,255,0.90);
  --sb-card-border: rgba(11,16,32,0.12);
  --sb-hover: rgba(11,16,32,0.04);
}
body { background: var(--sb-bg); color: var(--sb-text); overflow-x: hidden; }
.card { background: var(--sb-card-bg); border: 1px solid var(--sb-card-border); }
.muted { color: var(--sb-muted); }
.sb-hr { border-color: var(--sb-card-border) !important; opacity: 1; }
.card .list-group-item { background: transparent; color: inherit; border-color: var(--sb-card-border); }
.card .list-group-item:hover { background: var(--sb-hover); }
.card .table { --bs-table-bg: transparent; --bs-table-border-color: var(--sb-card-border); color: inherit; }

.sb-logo-nav { width: 28px; height: 28px; object-fit: contain; }
.sb-logo-card { height: 30px; width: auto; object-fit: contain; filter: drop-shadow(0 0 12px rgba(0,210,255,0.18)); }
.sb-logo-card-lg { height: 40px; width: auto; object-fit: contain; filter: drop-shadow(0 0 14px rgba(0,210,255,0.22)); }

.sb-navbar { min-height: 50px; padding-top: 0; padding-bottom: 0; }
.sb-navbar > .container { min-height: 50px; }
.sb-navbar > .container { align-items: center; }
.sb-navbar .navbar-brand { padding-top: 0; padding-bottom: 0; line-height: 1; min-height: 50px; display: flex; align-items: center; }
.sb-navbar .sb-logo-nav { height: 80px; width: auto; max-width: 160px; object-fit: contain; display: block; }
.sb-navbar .btn { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.sb-theme-btn { width: 38px; height: 32px; display: inline-flex; align-items: center; justify-content: center; }

.sb-navbar .navbar-toggler { border-color: var(--sb-card-border); }

@media (max-width: 991.98px) {
  .sb-navbar .sb-logo-nav { height: 56px; max-width: 140px; }
  .sb-navbar .navbar-nav .nav-link { padding: 0.35rem 0; }
}
.badge-chip { border: 1px solid rgba(255,255,255,0.14); padding: 0.25rem 0.5rem; border-radius: 999px; display: inline-block; margin: 0.125rem 0.25rem 0 0; font-size: 0.9rem; }
.stamp { font-weight: 700; letter-spacing: 0.06em; }
.stamp.valid { color: #20e3b2; }
.stamp.expired { color: #ffcc66; }
.stamp.revoked { color: #ff5c75; }

.card3d-toolbar .btn { border-color: var(--sb-card-border); }
.card3d-scene { perspective: 1100px; touch-action: none; cursor: grab; user-select: none; display: grid; place-items: center; width: 100%; }
.card3d-scene:active { cursor: grabbing; }
.card3d-wrap { display: grid; place-items: center; width: 100%; }
.card3d {
  width: min(420px, 100%);
  margin-inline: auto;
  aspect-ratio: 1.585 / 1;
  position: relative;
  transform-style: preserve-3d;
  border-radius: 18px;
  transform: rotateX(var(--rx, -10deg)) rotateY(var(--ry, 18deg));
  transition: transform 120ms ease;
  will-change: transform;
}
.card3d.is-floating { animation: cardFloat 6s ease-in-out infinite; }
.card3d::before {
  content: "";
  position: absolute;
  inset: -12px;
  border-radius: 24px;
  background:
    radial-gradient(900px 280px at 20% 20%, rgba(32,227,178,0.22), transparent 60%),
    radial-gradient(900px 320px at 80% 10%, rgba(156,86,255,0.20), transparent 55%),
    radial-gradient(900px 340px at 50% 90%, rgba(0,210,255,0.14), transparent 60%);
  filter: blur(20px);
  opacity: 0.85;
  transform: translateZ(-1px);
  pointer-events: none;
}
.card3d::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  background:
    radial-gradient(240px 160px at calc(var(--px, 50) * 1%) calc(var(--py, 35) * 1%),
      rgba(255,255,255,0.20), rgba(255,255,255,0.05) 35%, transparent 70%),
    linear-gradient(120deg,
      rgba(255,255,255,0.06),
      rgba(255,255,255,0.00) 35%,
      rgba(255,255,255,0.10) 55%,
      rgba(255,255,255,0.00) 75%,
      rgba(255,255,255,0.06));
  mix-blend-mode: screen;
  opacity: 0.55;
  pointer-events: none;
  transform: translateZ(1px);
}
.card3d-face {
  position: absolute;
  inset: 0;
  border-radius: 18px;
  overflow: hidden;
  backface-visibility: hidden;
  border: 1px solid rgba(255,255,255,0.12);
  color: #e7e9ee;
  box-shadow:
    0 18px 60px rgba(0,0,0,0.55),
    inset 0 0 0 1px rgba(255,255,255,0.06);
}
.card3d-face .muted { color: rgba(231,233,238,0.75) !important; }
.card3d-front {
  background:
    linear-gradient(135deg, rgba(12,18,36,0.94), rgba(10,12,22,0.92)),
    radial-gradient(800px 320px at 20% 20%, rgba(0,210,255,0.18), transparent 55%),
    radial-gradient(700px 300px at 80% 10%, rgba(156,86,255,0.18), transparent 55%),
    radial-gradient(700px 320px at 50% 100%, rgba(32,227,178,0.14), transparent 60%);
}
.card3d-back {
  transform: rotateY(180deg);
  background:
    linear-gradient(135deg, rgba(10,12,22,0.94), rgba(12,18,36,0.94)),
    radial-gradient(800px 360px at 70% 20%, rgba(0,210,255,0.14), transparent 55%),
    radial-gradient(700px 360px at 30% 80%, rgba(156,86,255,0.14), transparent 60%);
}
.card3d-surface { padding: 0.95rem; height: 100%; display: flex; flex-direction: column; gap: 0.5rem; }
.card3d-title { letter-spacing: 0.14em; font-weight: 800; font-size: 0.85rem; opacity: 0.92; }
.card3d-name { font-weight: 800; font-size: 1.25rem; line-height: 1.1; }
.card3d-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 0.25rem 0.6rem; font-size: 0.9rem; }
.card3d-meta > div { min-width: 0; }
.card3d-meta > div > div { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card3d-label { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.72; }
.card3d-avatar { width: 56px; height: 56px; border-radius: 14px; object-fit: cover; border: 1px solid rgba(255,255,255,0.18); background: rgba(0,0,0,0.15); flex: 0 0 auto; }
.barcode { width: 100%; height: 64px; display: block; background: rgba(255,255,255,0.06); border-radius: 10px; padding: 6px; }
.barcode text { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; fill: rgba(231,233,238,0.85); }

.sb-card-front { display: flex; gap: 0.75rem; align-items: stretch; height: 100%; }
.sb-card-left { width: 120px; display: flex; flex-direction: column; gap: 0.5rem; }
.sb-card-photo { width: 100%; aspect-ratio: 1 / 1; border-radius: 16px; object-fit: cover; border: 1px solid rgba(255,255,255,0.18); background: rgba(0,0,0,0.15); }
.sb-card-right { flex: 1; display: flex; flex-direction: column; gap: 0.45rem; min-width: 0; }
.sb-card-meta { margin-top: 0.15rem; }
.sb-card-badges { margin-top: auto; padding-top: 0.25rem; }
.card3d-face .badge-chip { font-size: 0.8rem; padding: 0.18rem 0.42rem; margin: 0.12rem 0.18rem 0 0; }

@media (max-width: 575.98px) {
  .card3d { aspect-ratio: 1.80 / 1; }
  .card3d-surface { padding: 0.75rem; gap: 0.4rem; }
  .sb-card-front { gap: 0.6rem; }
  .sb-card-left { width: clamp(60px, 18vw, 90px); gap: 0.35rem; }
  .sb-logo-card-lg { height: clamp(18px, 5vw, 28px); }
  .sb-card-photo { border-radius: 12px; }
  .sb-card-right { gap: 0.35rem; }
  .card3d-name { font-size: 1.05rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .sb-card-right .muted { font-size: 0.82rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .stamp { font-size: 0.78rem; letter-spacing: 0.04em; }
  .card3d-meta { font-size: 0.8rem; gap: 0.18rem 0.45rem; }
  .card3d-label { font-size: 0.64rem; letter-spacing: 0.05em; }
  .card3d-face .badge-chip { font-size: 0.72rem; padding: 0.14rem 0.34rem; }
}

@media (max-width: 420px) {
  .card3d { aspect-ratio: 1.65 / 1; }
  .card3d-surface { padding: 0.6rem; gap: 0.32rem; }
  .sb-card-left { width: clamp(56px, 16vw, 76px); }
  .sb-logo-card-lg { height: clamp(16px, 4.6vw, 24px); }
  .card3d-meta { font-size: 0.78rem; gap: 0.16rem 0.4rem; }
}

@media (max-width: 360px) {
  .card3d { aspect-ratio: 1.45 / 1; }
  .card3d-meta { grid-template-columns: 1fr; }
  .sb-meta-optional { display: none; }
}

@keyframes cardFloat {
  0% { transform: rotateX(var(--rx, -10deg)) rotateY(var(--ry, 18deg)) translateY(0px); }
  50% { transform: rotateX(calc(var(--rx, -10deg) + 1deg)) rotateY(calc(var(--ry, 18deg) - 3deg)) translateY(-8px); }
  100% { transform: rotateX(var(--rx, -10deg)) rotateY(var(--ry, 18deg)) translateY(0px); }
}