/* Layout */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  height: 100vh;
}

.topbar {
  grid-area: topbar;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.badge {
  display: inline-block;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
}

.sidebar {
  grid-area: sidebar;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 10px 10px 14px;
  overflow: auto;
}

.sidebar .group-title {
  margin: 12px 10px 8px;
  font-size: 12px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px;
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.nav-item:hover { background: var(--panel-2); }
.nav-item.active {
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.20);
}

.main {
  grid-area: main;
  padding: 16px;
  overflow: auto;
}

/* Cards + grids */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
@media (max-width: 1200px) { .grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; grid-template-rows: var(--topbar-h) 1fr; grid-template-areas: "topbar" "main"; }
  .sidebar { display: none; }
  .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px var(--shadow);
}
.card .card-hd {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 14px 10px;
  border-bottom: 1px solid var(--border);
}
.card .card-bd { padding: 14px; }

.h1 { font-size: 22px; margin: 0; }
.h2 { font-size: 16px; margin: 0; color: var(--muted); font-weight: 400; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 0;
}

/* Buttons */
.btn {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.btn:hover { background: var(--panel-2); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  color: var(--primary-contrast);
  border-color: rgba(0,0,0,0.05);
}
.btn-primary:hover { filter: brightness(0.98); }

.btn-danger { background: var(--danger); color: #fff; border-color: rgba(0,0,0,0.05); }
.btn-danger:hover { filter: brightness(0.98); }

.btn-ghost { background: transparent; }

/* Inputs */
.input, .select, .textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--panel);
  color: var(--text);
}
.input::placeholder { color: var(--muted); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 900px) { .field-row { grid-template-columns: 1fr; } }
.label { font-size: 12px; color: var(--muted); margin: 0 0 6px; }

/* Table */
.table-wrap {
  margin-top: 12px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
}
th, td {
  padding: 10px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}
th { position: sticky; top: 0; background: var(--panel-2); z-index: 2; }
tr:hover td { background: rgba(37,99,235,0.06); }
.row-selected td { background: rgba(37,99,235,0.12) !important; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 1000;
}
.modal {
  width: min(900px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: var(--panel);
  color: var(--text);
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0,0,0,0.35);
}
.modal .modal-hd {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.modal .modal-bd { padding: 16px; }
.modal .modal-ft {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Utilities */
.kpi {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kpi .kpi-label { color: var(--muted); font-size: 12px; }
.kpi .kpi-value { font-size: 24px; font-weight: 700; }

.notice {
  border: 1px solid var(--border);
  background: var(--panel-2);
  border-radius: 12px;
  padding: 12px 12px;
  color: var(--muted);
}
.small { font-size: 12px; color: var(--muted); }
hr.sep { border: none; border-top: 1px solid var(--border); margin: 14px 0; }

/* Thumbnail images in tables */
img.thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: rgba(0,0,0,0.03);
}

.theme-dark img.thumb {
  background: rgba(255,255,255,0.06);
}