/* ============================================================
   CREO HUB — glass.css
   Glass morphism treatments: .glass, .glass-navy, .glass-card
   ============================================================ */

/* ── Primary glass surface ── */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md),
              inset 0 1px 0 rgba(255,255,255,0.60);
  position: relative;
  overflow: hidden;
}

/* Inner highlight — top edge catch light */
.glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(255,255,255,0.80) 30%,
    rgba(255,255,255,0.80) 70%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* ── Dark navy glass surface ── */
.glass-navy {
  background: var(--glass-navy-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg),
              inset 0 1px 0 rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
}

.glass-navy::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(255,255,255,0.12) 30%,
    rgba(255,255,255,0.12) 70%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* ── Nested card glass surface ── */
.glass-card {
  background: var(--glass-card-bg);
  backdrop-filter: var(--glass-card-blur);
  -webkit-backdrop-filter: var(--glass-card-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm),
              inset 0 1px 0 rgba(255,255,255,0.50);
  position: relative;
  overflow: hidden;
}

/* ── Gold-accented glass card ── */
.glass-gold {
  background: rgba(229,156,40,0.08);
  backdrop-filter: var(--glass-card-blur);
  -webkit-backdrop-filter: var(--glass-card-blur);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-gold);
}

/* ── Cerulean-accented glass card ── */
.glass-cerulean {
  background: rgba(23,100,135,0.08);
  backdrop-filter: var(--glass-card-blur);
  -webkit-backdrop-filter: var(--glass-card-blur);
  border: 1px solid rgba(23,100,135,0.20);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(23,100,135,0.12);
}

/* ── Shimmer effect (loading states) ── */
.shimmer {
  position: relative;
  overflow: hidden;
  background: var(--border-light);
}

.shimmer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.60) 50%,
    transparent 100%
  );
  animation: shimmer-sweep 1.6s ease-in-out infinite;
}

@keyframes shimmer-sweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ── Glass hover lift ── */
.glass-hover {
  transition: box-shadow var(--transition-base),
              transform var(--transition-base);
}

.glass-hover:hover {
  box-shadow: var(--shadow-lg),
              inset 0 1px 0 rgba(255,255,255,0.60);
  transform: translateY(-2px);
}

/* ── Flat / clean card (for data-dense pages) ── */
.card-flat {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-flat-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-flat-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.card-flat-body {
  padding: var(--space-5);
}