:root {
  --primary: #e8500a;
  --primary-dark: #c4400a;
  --dark: #0a0a0a;
  --darker: #111111;
  --card: #1a1a1a;
  --text: #f0f0f0;
  --text-muted: #888888;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--dark);
  color: var(--text);
  min-height: 100vh;
}

/* NAVBAR */
.navbar {
  background: var(--darker);
  padding: 0 2rem;
  height: 65px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(232,80,10,0.3);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.navbar-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.navbar-brand .brand-text {
  line-height: 1.2;
}

.navbar-brand .brand-name {
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.navbar-brand .brand-sub {
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
}

.navbar-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s;
}

.navbar-nav a:hover, .navbar-nav a.active {
  color: var(--text);
  background: rgba(255,255,255,0.08);
}

.btn-logout {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text-muted) !important;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s;
}

.btn-logout:hover { border-color: var(--danger); color: var(--danger) !important; }

/* MAIN LAYOUT */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* CARDS */
.card {
  background: var(--darker);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #059669; }
.btn-warning { background: var(--warning); color: #1a1a2e; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-warning-outline { background: transparent; border: 1px solid rgba(245,158,11,0.45); color: #f59e0b; }
.btn-warning-outline:hover { border-color: var(--warning); color: var(--warning); }

/* FORMS */
.form-group { margin-bottom: 1.2rem; }
.form-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}
.form-label.required::after { content: ' *'; color: var(--primary); }

.form-control {
  width: 100%;
  padding: 0.65rem 0.9rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255,255,255,0.08);
}

.form-control option { background: var(--darker); }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}

/* CHECKBOXES */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.7rem;
  margin-top: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.checkbox-item:hover { border-color: var(--primary); background: rgba(232,80,10,0.1); }
.checkbox-item input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px; height: 16px;
  flex-shrink: 0;
  appearance: none; -webkit-appearance: none;
  border: 2px solid rgba(255,255,255,0.45);
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}
.checkbox-item input[type="checkbox"]:checked {
  background: var(--primary);
  border-color: var(--primary);
}
.checkbox-item input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 3px; top: 0px;
  width: 5px; height: 9px;
  border: 2px solid #fff;
  border-top: none; border-left: none;
  transform: rotate(45deg);
}
.checkbox-item label { cursor: pointer; font-size: 0.85rem; user-select: none; color: var(--text); }

/* FILE UPLOAD */
.file-upload-area {
  border: 2px dashed rgba(255,255,255,0.2);
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: rgba(255,255,255,0.02);
}

.file-upload-area:hover, .file-upload-area.dragover {
  border-color: var(--primary);
  background: rgba(232,80,10,0.08);
}

.file-upload-area .upload-icon { font-size: 3rem; margin-bottom: 0.8rem; }
.file-upload-area p { color: var(--text-muted); font-size: 0.9rem; }
.file-upload-area .file-name { color: var(--success); font-weight: 600; margin-top: 0.5rem; }

/* STATUS BADGES */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-received { background: rgba(59,130,246,0.2); color: #60a5fa; border: 1px solid rgba(59,130,246,0.3); }
.badge-processing { background: rgba(245,158,11,0.2); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.badge-completed { background: rgba(16,185,129,0.2); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.badge-on_hold { background: rgba(239,68,68,0.2); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-paid    { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.badge-pending { background: rgba(245,158,11,0.15); color: #f59e0b; border: 1px solid rgba(245,158,11,0.3); }
.badge-unpaid  { background: rgba(239,68,68,0.12); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }

/* TABLES */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  padding: 0.7rem 1rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
td {
  padding: 0.9rem 1rem;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
tr:hover td { background: rgba(255,255,255,0.03); }

/* STATS GRID */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--darker);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-icon.orange { background: rgba(232,80,10,0.2); }
.stat-icon.blue { background: rgba(59,130,246,0.2); }
.stat-icon.green { background: rgba(16,185,129,0.2); }
.stat-icon.yellow { background: rgba(245,158,11,0.2); }

.stat-info .stat-value { font-size: 1.6rem; font-weight: 700; color: var(--text); }
.stat-info .stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* ALERTS */
.alert {
  padding: 0.8rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #f87171; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #34d399; }

/* PAGE HEADER */
.page-header {
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-title { font-size: 1.6rem; font-weight: 700; }
.page-title span { color: var(--primary); }

/* MODAL */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--darker);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.2rem;
}
.modal-close:hover { color: var(--text); }

/* SECTION DIVIDER */
.section-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1rem;
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.07);
}

/* LOADING */
.loading { text-align: center; padding: 3rem; color: var(--text-muted); }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* EMPTY STATE */
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state p { margin-bottom: 1.5rem; }

/* RESPONSIVE */
@media (max-width: 768px) {
  .form-grid, .form-grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .main-container { padding: 1rem; }
  .navbar { padding: 0 1rem; }
}

/* ── CUSTOMER MOBILE DRAWER ── */
.cust-burger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px;
  background: none; border: none; cursor: pointer; padding: 8px;
  border-radius: 8px; transition: background .15s; flex-shrink: 0;
}
.cust-burger:hover { background: rgba(255,255,255,0.06); }
.cust-burger span {
  display: block; width: 22px; height: 2px;
  background: rgba(255,255,255,0.8); border-radius: 2px;
  transition: all .25s;
}
.cust-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.cust-burger.open span:nth-child(2) { opacity: 0; }
.cust-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#custDrawerBackdrop {
  display: none; position: fixed; inset: 0; z-index: 140;
  background: rgba(0,0,0,0.6);
}
#custDrawerBackdrop.open { display: block; }

#custDrawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 160;
  width: min(82vw, 270px);
  background: var(--darker);
  border-left: 1px solid rgba(255,255,255,0.09);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
}
#custDrawer.open { transform: translateX(0); }

.cust-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.2rem; border-bottom: 1px solid rgba(255,255,255,0.07);
  position: sticky; top: 0; background: var(--darker); z-index: 1;
  flex-shrink: 0;
}
.cust-drawer-brand { color: var(--primary); font-size: 1rem; font-weight: 700; }
.cust-drawer-sub   { color: var(--text-muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px; margin-top: 1px; }
.cust-drawer-close {
  background: none; border: none; color: rgba(255,255,255,0.45);
  font-size: 1.1rem; cursor: pointer; padding: 5px 9px;
  border-radius: 6px; line-height: 1;
}
.cust-drawer-close:hover { background: rgba(255,255,255,0.07); color: #fff; }

.cust-drawer-nav { list-style: none; padding: 0.6rem 0; flex: 1; }
.cust-drawer-nav li a {
  display: flex; align-items: center; gap: 9px;
  padding: 0.8rem 1.3rem;
  color: var(--text-muted); text-decoration: none; font-size: 0.92rem;
  transition: all 0.15s;
}
.cust-drawer-nav li a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.cust-drawer-nav li a.active {
  color: var(--text); background: rgba(255,255,255,0.06);
  border-left: 3px solid var(--primary); padding-left: calc(1.3rem - 3px);
}

.cust-drawer-footer {
  padding: 1rem 1.2rem; border-top: 1px solid rgba(255,255,255,0.07);
}

@media (max-width: 700px) {
  .navbar-nav { display: none; }
  .cust-burger { display: flex; }
}