:root{
  --sl-bg0:#0b1020;
  --sl-bg1:#101a33;
  --sl-ink:#0b1220;
  --sl-muted:#5a667a;
  --sl-paper:#f7f3ea;
  --sl-card:#ffffff;
  --sl-border:rgba(15, 25, 45, .12);
  --sl-accent:#1f7a6b;       /* teal */
  --sl-accent2:#e07a2f;      /* orange */
  --sl-accent3:#3a63e6;      /* blue */
  --sl-danger:#c63a3a;
  --sl-shadow:0 14px 40px rgba(10, 16, 30, .10);
  --sl-shadow2:0 10px 26px rgba(10, 16, 30, .12);
}

html,body{height:100%;}
body{
  font-size:.95rem;
  color:var(--sl-ink);
  background:
    radial-gradient(1200px 600px at 18% 5%, rgba(31,122,107,.18), transparent 60%),
    radial-gradient(900px 520px at 85% 12%, rgba(224,122,47,.16), transparent 58%),
    linear-gradient(180deg, #fbf7ef 0%, #f3f0ea 55%, #eef2f7 100%);
  padding-top:64px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-family: Verdana, Geneva, sans-serif;
}

h1,h2,h3,h4,h5,.navbar-brand{
  font-family: "Palatino Linotype", Palatino, "Book Antiqua", serif;
  letter-spacing: .2px;
}

.sl-topbar.navbar{
  background:
    linear-gradient(180deg, rgba(11,16,32,.92), rgba(11,16,32,.72));
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sl-topbar .navbar-brand{
  display:flex;
  align-items:center;
  gap:.6rem;
  font-weight: 700;
}
.sl-brand-badge{
  width:28px;
  height:28px;
  border-radius:10px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.55), transparent 55%),
    linear-gradient(135deg, var(--sl-accent3), var(--sl-accent));
  box-shadow: 0 10px 22px rgba(12, 20, 40, .35);
}

.sl-shell{
  min-height: calc(100vh - 64px);
}

/* Sidebar (md+ fixed, small screens offcanvas) */
.sl-sidebar{
  background:
    radial-gradient(900px 520px at 20% 10%, rgba(58,99,230,.22), transparent 55%),
    radial-gradient(800px 420px at 80% 20%, rgba(31,122,107,.22), transparent 60%),
    linear-gradient(180deg, var(--sl-bg0), var(--sl-bg1));
  color: rgba(255,255,255,.88);
  border-right: 1px solid rgba(255,255,255,.08);
}
.sl-sidebar .offcanvas-header{
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sl-sidebar .nav-link{
  color: rgba(255,255,255,.80);
  border-radius: 12px;
  padding: .55rem .7rem;
  margin: .08rem .45rem;
  display:flex;
  align-items:center;
  gap:.55rem;
}
.sl-sidebar .nav-link:hover{
  color: #fff;
  background: rgba(255,255,255,.08);
}
.sl-sidebar .nav-link.active{
  color:#06101a;
  background:
    linear-gradient(135deg, rgba(255,255,255,.92), rgba(255,255,255,.82));
  box-shadow: 0 8px 22px rgba(0,0,0,.22);
}
.sl-sidebar .sl-nav-section{
  padding: .25rem .65rem;
  margin-top: .35rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .72rem;
  color: rgba(255,255,255,.55);
}

@media (min-width: 768px){
  .sl-sidebar{
    position: sticky;
    top: 64px;
    height: calc(100vh - 64px);
  }
  .sl-sidebar .offcanvas-body{
    height: 100%;
    overflow-y: auto;
  }
}

/* Main content */
.sl-content{
  animation: slFadeUp .35s ease both;
}
@keyframes slFadeUp{
  /* IMPORTANT: no `transform` here, otherwise Bootstrap modals can end up behind the backdrop
     because a transformed ancestor changes the containing block/stacking context for fixed elements. */
  from{opacity:0;}
  to{opacity:1;}
}
@media (prefers-reduced-motion: reduce){
  .sl-content{animation:none;}
}

/* Cards, tables, inputs */
.card{
  border: 1px solid var(--sl-border);
  border-radius: 16px;
  box-shadow: var(--sl-shadow);
}
.card-header{
  border-bottom: 1px solid var(--sl-border);
  background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.90));
}
.table{
  --bs-table-bg: transparent;
}
.table thead th{
  font-weight: 700;
  color: rgba(20, 30, 52, .78);
}
.form-control, .form-select{
  border-radius: 12px;
  border-color: rgba(20, 30, 52, .18);
}
.btn{
  border-radius: 12px;
}
.btn-primary{
  --bs-btn-bg: var(--sl-accent3);
  --bs-btn-border-color: rgba(0,0,0,0);
  --bs-btn-hover-bg: #2e56db;
  --bs-btn-hover-border-color: rgba(0,0,0,0);
  --bs-btn-active-bg: #254ad0;
}
.btn-outline-primary{
  --bs-btn-color: var(--sl-accent3);
  --bs-btn-border-color: rgba(58,99,230,.40);
  --bs-btn-hover-bg: rgba(58,99,230,.10);
  --bs-btn-hover-border-color: rgba(58,99,230,.55);
}

/* Utility */
.sl-pill{
  border-radius: 999px;
}
.sl-muted{
  color: var(--sl-muted) !important;
}

/* Safety override: ensure Bootstrap modals stay above backdrops even if a page layout
   accidentally creates stacking contexts. */
.modal-backdrop{ z-index: 2000; }
.modal{ z-index: 2005; }