:root{
  --bg: #0b0f17;
  --panel: #101828;
  --panel-2: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --border: rgba(255,255,255,.10);
  --shadow: 0 20px 50px rgba(0,0,0,.35);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1100px;
  --sidebar-width: 250px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: radial-gradient(1200px 600px at 10% 0%, rgba(59,130,246,.20), transparent 55%),
              radial-gradient(900px 600px at 100% 0%, rgba(168,85,247,.18), transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  line-height: 1.5;
}

a{ color: inherit; text-decoration:none; }

/* Default container behavior */
.container{
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 18px;
}

/* ---------- App Layout ---------- */

.app-shell{
  display: flex;
  min-height: 100vh;
}

.sidebar{
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: rgba(11,15,23,.78);
  backdrop-filter: blur(10px);
  border-right: 1px solid var(--border);
  padding: 18px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-inner{
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sidebar .brand{
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 6px 4px 14px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
}
.brand-mark{
  width: 38px; height: 38px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: linear-gradient(135deg, rgba(59,130,246,.95), rgba(168,85,247,.9));
  box-shadow: var(--shadow);
  font-weight: 800;
  letter-spacing: .5px;
}
.brand-name{
  font-weight: 750;
  letter-spacing: .2px;
}

.sidebar .nav{
  display:flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}

.nav{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-item{
  position: relative;
  display: block;
}

.nav-link{
  display: block;
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  border: 1px solid transparent;
  background: rgba(255,255,255,.02);
}

.nav-link:hover{
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,.04);
}

.nav-link-cta{
  color: var(--text);
  background: rgba(255,255,255,.06);
  border-color: var(--border);
}

/* Sidebar submenu */
.submenu{
  display: none;
  position: static;
  min-width: 100%;
  margin-top: 6px;
  margin-left: 10px;
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
  z-index: auto;
}

.nav-item:hover .submenu{
  display: block;
}

.submenu-link{
  display: block;
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--muted);
  border: 1px solid transparent;
  white-space: nowrap;
  font-size: 14px;
}

.submenu-link:hover{
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,.04);
}

.content-area{
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.site-main{
  flex: 1;
  padding: 26px 24px 40px;
}

.site-main .container{
  max-width: none;
  margin: 0;
  padding: 0;
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.hero{
  display:grid;
  gap: 12px;
  padding: 26px;
}
.hero h1{
  margin: 0;
  font-size: clamp(26px, 2.8vw, 38px);
  line-height: 1.12;
}
.hero p{
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-weight: 650;
  cursor: pointer;
}
.btn:hover{ background: rgba(255,255,255,.09); }

.btn-primary{
  background: linear-gradient(135deg, rgba(59,130,246,.95), rgba(168,85,247,.9));
  border-color: transparent;
}

.grid{
  display:grid;
  gap: 16px;
  grid-template-columns: repeat(12, 1fr);
  margin-top: 18px;
}
.col-6{ grid-column: span 6; }
.col-12{ grid-column: span 12; }

.site-footer{
  border-top: 1px solid var(--border);
  background: rgba(11,15,23,.70);
}

.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 20px;
  padding: 22px 0;
  flex-wrap: wrap;
}

.footer-brand{ font-weight: 750; }
.footer-note{ color: var(--muted); max-width: 55ch; }
.footer-right{ display:flex; gap: 12px; flex-wrap: wrap; }

.footer-link{
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 10px;
}
.footer-link:hover{
  color: var(--text);
  background: rgba(255,255,255,.04);
}

.footer-bottom{
  padding: 14px 0 22px;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- Set page ---------- */

.set-page h1{
  margin-top: 0;
  margin-bottom: 20px;
}

.set-export-links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.set-filters{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 16px;
}

.set-filters label{
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text);
  font-weight: 600;
}

.set-filters input[type="text"],
.set-filters input[type="number"],
.set-filters select{
  min-height: 40px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.set-filters option{
  color: #111827;
}

.table-wrap{
  width: 100%;
  overflow-x: auto;
}

.set-table{
  width: 100%;
  border-collapse: collapse;
  min-width: 1100px;
}

.set-table th,
.set-table td{
  padding: 12px 10px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.set-table thead th{
  font-size: 15px;
  font-weight: 700;
}

.limited-variation{
  color: #ff8787;
  font-weight: 600;
}

.add-qty-header{
  min-width: 520px;
}

.add-qty-header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.set-all-qty-btn{
  width: auto;
  white-space: nowrap;
}

.add-qty-cell{
  white-space: nowrap;
}

.qty-row{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.qty-input{
  width: 82px;
  min-width: 82px;
  min-height: 40px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
}

.qty-quick-group{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
}

.qty-quick{
  width: auto;
  min-width: 52px;
  text-align: center;
  white-space: nowrap;
  flex: 0 0 auto;
  cursor: pointer;
}

@media (max-width: 980px){
  .app-shell{
    flex-direction: column;
  }

  .sidebar{
    width: 100%;
    min-width: 0;
    height: auto;
    position: relative;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .sidebar .nav{
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .sidebar .nav-item{
    width: 100%;
  }

  .sidebar .nav-link{
    width: auto;
  }

  .nav-item:hover .submenu{
    display: block;
  }

  .submenu{
    margin-left: 0;
    margin-top: 8px;
    padding-left: 8px;
  }

  .site-main{
    padding: 22px 18px 32px;
  }

  .col-6{ grid-column: span 12; }

  .set-filters{
    flex-direction: column;
    align-items: stretch;
  }

  .add-qty-header{
    min-width: 480px;
  }
}

.cs-cards-wrap {
        max-width: 1700px;
        margin: 0 auto;
    }
    .cs-cards-panel {
        background: #1f2937;
        border: 1px solid #374151;
        border-radius: 14px;
        padding: 18px;
        margin-bottom: 18px;
    }
    .cs-cards-toolbar {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 16px;
    }
    .cs-cards-btn,
    button.cs-cards-btn {
        display: inline-block;
        border: 0;
        border-radius: 10px;
        padding: 10px 14px;
        background: #2563eb;
        color: #fff;
        text-decoration: none;
        cursor: pointer;
        font-weight: 600;
    }
    .cs-cards-btn:hover,
    button.cs-cards-btn:hover {
        background: #1d4ed8;
    }
    .cs-cards-btn-secondary {
        background: #374151;
    }
    .cs-cards-btn-secondary:hover {
        background: #4b5563;
    }
    .cs-cards-btn-active {
        background: #1d4ed8;
        box-shadow: inset 0 0 0 1px #93c5fd;
    }
    .cs-cards-filters {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 14px;
    }
    .cs-cards-label {
        display: block;
        font-size: 12px;
        color: #9ca3af;
        margin-bottom: 6px;
    }
    .cs-cards-input,
    .cs-cards-select {
        width: 100%;
        padding: 10px 12px;
        border-radius: 10px;
        border: 1px solid #4b5563;
        background: #0f172a;
        color: #fff;
    }
    .cs-cards-small {
        font-size: 12px;
        color: #9ca3af;
    }
    .cs-cards-flash {
        border-radius: 12px;
        padding: 12px 14px;
        margin-bottom: 16px;
        border: 1px solid;
        font-weight: 600;
    }
    .cs-cards-flash-success {
        background: #14532d;
        border-color: #166534;
        color: #dcfce7;
    }
    .cs-cards-flash-error {
        background: #7f1d1d;
        border-color: #991b1b;
        color: #fee2e2;
    }
    .cs-cards-table-wrap {
        overflow-x: auto;
    }
    .cs-cards-table {
        width: 100%;
        border-collapse: collapse;
        min-width: 1200px;
    }
    .cs-cards-table th,
    .cs-cards-table td {
        padding: 10px 8px;
        border-bottom: 1px solid #374151;
        text-align: left;
        vertical-align: top;
        font-size: 14px;
    }
    .cs-cards-table th {
        color: #93c5fd;
        white-space: nowrap;
    }
    .cs-cards-table a {
        color: #93c5fd;
    }
    .cs-cards-nowrap {
        white-space: nowrap;
    }
    .cs-cards-muted {
        color: #9ca3af;
    }
    .cs-cards-chip {
        display: inline-block;
        padding: 2px 8px;
        border-radius: 999px;
        background: #374151;
        color: #e5e7eb;
        font-size: 11px;
        margin: 2px 6px 2px 0;
    }
    .cs-cards-chip-good {
        background: #14532d;
        color: #dcfce7;
    }
    .cs-cards-chip-copies {
        background: #1d4ed8;
        color: #dbeafe;
    }
    .cs-cards-owned {
        font-weight: 700;
        color: #86efac;
    }
    .cs-cards-paging {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-top: 16px;
        align-items: center;
    }
    .cs-cards-page-ranges {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin: 12px 0 16px 0;
    }
    .cs-cards-qty-cell {
        min-width: 260px;
    }
    .cs-cards-qty-row {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .cs-cards-qty-input {
        width: 74px;
        min-width: 74px;
    }
    .cs-cards-quick-group {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
    }
    .cs-cards-quick {
        border: 1px solid #4b5563;
        background: #111827;
        color: #dbeafe;
        border-radius: 8px;
        padding: 4px 8px;
        cursor: pointer;
        font-size: 12px;
    }
    .cs-cards-quick:hover {
        background: #1f2937;
    }
    .cs-cards-add-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
    }
    .cs-cards-link-button {
        background: none;
        border: none;
        color: #93c5fd;
        cursor: pointer;
        padding: 0;
        font: inherit;
        text-decoration: underline;
    }
    @media (max-width: 1400px) {
        .cs-cards-filters {
            grid-template-columns: repeat(3, minmax(0, 1fr));
        }
    }
    @media (max-width: 900px) {
        .cs-cards-filters {
            grid-template-columns: repeat(2, minmax(0, 1fr));
        }
    }
    @media (max-width: 700px) {
        .cs-cards-filters {
            grid-template-columns: repeat(1, minmax(0, 1fr));
        }
    }