/* =========================
   Cards
   ========================= */

.card{
  position: relative;
  overflow: visible;
  border-radius: var(--radius);
  padding: var(--card-padding);
  padding-bottom: calc(var(--card-padding) + 72px);
  background: var(--bg-deep);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);

  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
}

.card::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background: linear-gradient(135deg,
    rgba(0, 0, 0, 0.12) 0%,
    rgba(0, 0, 0, 0.03) 28%,
    transparent 58%);
  mix-blend-mode: overlay;
  transform: translateY(-18%);
  opacity:0.9;
}

.card::after{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:inherit;
  pointer-events:none;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.02) inset;
}

/* =========================
   Card header
   ========================= */

.card h2{
  margin:0 0 12px 0;
  color: var(--brand-600);
  font-size: 1.12rem;
  border-bottom: 2px solid var(--card-border);
  padding-bottom: 8px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;

  position: relative;
  overflow: hidden;
}

/* =========================
   Card title shimmer (one-shot)
   ========================= */

.card h2.shimmer-once::after{
  content:"";
  position:absolute;
  top:0;
  left:-120%;
  width:120%;
  height:100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255,255,255,0.08) 35%,
    rgba(33,188,165,0.35) 50%,
    rgba(255,255,255,0.08) 65%,
    transparent 100%
  );
  animation: titleShimmer 900ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: 120ms;
  pointer-events:none;
}

@keyframes titleShimmer{
  to{ left:120%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  .card h2.shimmer-once::after{
    animation:none;
  }
}

/* =========================
   Card sticky footer
   ========================= */

.card-footer{
  position: sticky;
  bottom: 0;
  z-index: 5;

  margin-top: 18px;
  padding-top: 12px;
  padding-bottom: 6px;

  background: linear-gradient(
    180deg,
    rgba(0,0,0,0) 0%,
    rgba(0,0,0,0.55) 38%,
    rgba(0,0,0,0.70) 100%
  );

  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);

  border-top: 1px dashed rgba(255,255,255,0.10);
}

/* Keep footer buttons readable */
.card-footer .btn-row{
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

/* Stage navigation inside cards */
.card .btn-row{
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px dashed rgba(255,255,255,0.08);
}

.card-footer .btn{
  transform: translateZ(0); /* reduces flicker on sticky layers */
}

/* iOS safe-area support */
@supports (padding: env(safe-area-inset-bottom)){
  .card-footer{
    padding-bottom: calc(6px + env(safe-area-inset-bottom));
  }
}

/* =========================
   No-backdrop fallback
   ========================= */

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))){
  body{
    background: linear-gradient(180deg, #0b1220, #0a1020);
  }

  .card{
    background: rgba(255,255,255,0.92);
    color: #071028;
    border: 1px solid rgba(11,18,32,0.08);
  }

  .card h2{ color:#0b1220; }
  label, h3{ color:#0b1220; }
  .muted, .field-note{ color:#334155; }
  input, select, textarea{
    background:#f7f7f8;
    color:#071028;
    border:1px solid rgba(11,18,32,0.10);
  }
  thead th{ color:#0b1220; }
  .toast{ background: rgba(15,23,42,0.92); color:#fff; }
}