/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a2d47;
  --primary-light: #1e3a5f;
  --accent: #7a94b0;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --info: #0891b2;
  --bg: #f0f4f8;
  --card: #ffffff;
  --border: #d1d9e0;
  --text: #1e293b;
  --text-muted: #64748b;
  --sidebar-w: 240px;
  --topbar-h: 60px;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

/* ── Sidebar ── */
#sidebar {
  width: var(--sidebar-w); background: var(--primary); color: #fff;
  display: flex; flex-direction: column; flex-shrink: 0;
  transition: width 0.3s; overflow: hidden;
}
#sidebar.collapsed { width: 60px; }
#sidebar.collapsed .logo-title, #sidebar.collapsed .logo-sub,
#sidebar.collapsed .nav-links a span:not(.icon),
#sidebar.collapsed .sidebar-footer { display: none; }

.sidebar-header { padding: 16px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.logo { display: flex; align-items: center; justify-content: center; }

.nav-links { list-style: none; padding: 12px 0; flex: 1; }
.nav-links li a {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  color: rgba(255,255,255,0.75); text-decoration: none; font-size: 14px;
  transition: background 0.2s, color 0.2s; white-space: nowrap;
}
.nav-links li a:hover { background: rgba(255,255,255,0.1); color: #fff; }
.nav-links li a.active { background: var(--primary-light); color: #fff; font-weight: 600; }
.nav-links li a .icon { flex-shrink: 0; width: 24px; display: flex; align-items: center; justify-content: center; }
.nav-links li a .icon svg { width: 18px; height: 18px; }

.sidebar-footer { padding: 16px; font-size: 11px; color: rgba(255,255,255,0.4); border-top: 1px solid rgba(255,255,255,0.1); white-space: nowrap; }

/* ── Main Layout ── */
#main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

#topbar {
  height: var(--topbar-h); background: var(--card); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
#menu-toggle { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); padding: 4px 8px; border-radius: 6px; }
#menu-toggle:hover { background: var(--bg); }
#page-title { font-size: 18px; font-weight: 600; color: var(--text); }
#current-date { font-size: 13px; color: var(--text-muted); }

#content { flex: 1; overflow-y: auto; padding: 24px; }

/* ── Cards & Grid ── */
.page { animation: fadeIn 0.2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--card); border-radius: var(--radius); padding: 20px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 6px;
  border-left: 4px solid var(--primary);
}
.stat-card.green { border-color: var(--success); }
.stat-card.orange { border-color: var(--warning); }
.stat-card.red { border-color: var(--danger); }
.stat-card.blue { border-color: var(--info); }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--text); }
.stat-sub { font-size: 12px; color: var(--text-muted); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

/* ── Table ── */
.table-container { overflow-x: auto; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: #f8fafc; }
th { padding: 12px 14px; text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); border-bottom: 2px solid var(--border); white-space: nowrap; }
td { padding: 12px 14px; border-bottom: 1px solid #f1f5f9; vertical-align: middle; }
tr:hover td { background: #f8fafc; }
tr:last-child td { border-bottom: none; }

/* ── Badges ── */
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.3px;
}
.badge-active, .badge-Active { background: #dbeafe; color: #1d4ed8; }
.badge-paid, .badge-Paid { background: #dcfce7; color: #15803d; }
.badge-partial, .badge-Partial { background: #fef9c3; color: #a16207; }
.badge-legal, .badge-Legal { background: #fee2e2; color: #b91c1c; }
.badge-written, .badge-Written\ Off { background: #f3f4f6; color: #6b7280; }
.badge-pending, .badge-Pending { background: #e0f2fe; color: #0369a1; }
.badge-suspended, .badge-Suspended { background: #fce7f3; color: #9d174d; }
.badge-high, .badge-High { background: #fee2e2; color: #b91c1c; }
.badge-medium, .badge-Medium { background: #fef9c3; color: #a16207; }
.badge-low, .badge-Low { background: #dcfce7; color: #15803d; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 7px; border: none; cursor: pointer;
  font-size: 14px; font-weight: 500; transition: all 0.2s; white-space: nowrap;
}
.btn-primary { background: var(--primary-light); color: #fff; }
.btn-primary:hover { background: var(--primary); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(0.9); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(0.9); }
.btn-outline { background: transparent; color: var(--primary-light); border: 1px solid var(--primary-light); }
.btn-outline:hover { background: var(--primary-light); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-warning { background: var(--warning); color: #fff; }

/* ── Toolbar ── */
.toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.toolbar-left { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.search-box { display: flex; align-items: center; background: var(--card); border: 1px solid var(--border); border-radius: 7px; padding: 0 12px; gap: 8px; }
.search-box input { border: none; outline: none; padding: 8px 0; font-size: 14px; background: transparent; width: 220px; }
.search-box span { color: var(--text-muted); }
select.filter-select {
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 7px;
  background: var(--card); font-size: 14px; color: var(--text); outline: none; cursor: pointer;
}

/* ── Forms ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
label { font-size: 13px; font-weight: 500; color: var(--text-muted); }
input, select, textarea {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 7px;
  font-size: 14px; color: var(--text); outline: none; transition: border 0.2s;
  background: var(--card);
}
input:focus, select:focus, textarea:focus { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(37,99,168,0.1); }
textarea { resize: vertical; min-height: 80px; }
.form-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 10px; padding-top: 8px; border-top: 1px solid var(--border); margin-top: 8px; }

/* ── Modal ── */
#modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 20px; }
#modal-overlay.hidden { display: none; }
#modal { background: var(--card); border-radius: 12px; width: 100%; max-width: 720px; max-height: 90vh; display: flex; flex-direction: column; box-shadow: 0 20px 60px rgba(0,0,0,0.2); }
#modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; border-bottom: 1px solid var(--border); }
#modal-title { font-size: 18px; font-weight: 600; }
#modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-muted); line-height: 1; }
#modal-close:hover { color: var(--danger); }
#modal-body { padding: 24px; overflow-y: auto; }

/* ── Toast ── */
#toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 2000;
  padding: 12px 20px; border-radius: 8px; font-size: 14px; font-weight: 500;
  color: #fff; background: #1e293b; box-shadow: var(--shadow);
  transform: translateY(80px); opacity: 0; transition: all 0.3s; pointer-events: none;
}
#toast.show { transform: translateY(0); opacity: 1; }
#toast.success { background: var(--success); }
#toast.error { background: var(--danger); }

/* ── Debtor Detail ── */
.debtor-detail-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.debtor-avatar { width: 60px; height: 60px; border-radius: 50%; background: var(--primary-light); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 700; flex-shrink: 0; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-bottom: 16px; }
.info-item { }
.info-item .label { font-size: 11px; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.5px; }
.info-item .value { font-size: 14px; font-weight: 500; margin-top: 2px; }

.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab-btn { padding: 10px 16px; border: none; background: none; cursor: pointer; font-size: 14px; color: var(--text-muted); border-bottom: 2px solid transparent; margin-bottom: -2px; font-weight: 500; transition: all 0.2s; }
.tab-btn.active { color: var(--primary-light); border-bottom-color: var(--primary-light); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Charts (simple CSS bars) ── */
.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-row { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.bar-label { width: 100px; text-align: right; color: var(--text-muted); flex-shrink: 0; font-size: 12px; }
.bar-track { flex: 1; background: #f1f5f9; border-radius: 4px; height: 20px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--primary-light); border-radius: 4px; transition: width 0.8s ease; }
.bar-fill.green { background: var(--success); }
.bar-fill.orange { background: var(--warning); }
.bar-fill.red { background: var(--danger); }
.bar-value { width: 100px; color: var(--text); font-weight: 600; font-size: 12px; }

/* ── Section Headers ── */
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.section-header h3 { font-size: 16px; font-weight: 600; }

/* ── Empty State ── */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state .empty-icon { margin-bottom: 12px; display: flex; justify-content: center; opacity: 0.35; }
.empty-state p { font-size: 15px; }

/* ── Pagination ── */
.pagination { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; font-size: 13px; color: var(--text-muted); }
.pagination-controls { display: flex; gap: 6px; }
.page-btn { padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); cursor: pointer; font-size: 13px; }
.page-btn:hover, .page-btn.active { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* ── Login Screen ── */
#login-overlay {
  position: fixed; inset: 0; background: var(--primary);
  display: flex; align-items: center; justify-content: center; z-index: 9999;
}
#login-overlay.hidden { display: none; }

#login-box {
  background: var(--card); border-radius: 16px; padding: 40px;
  width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 32px; }
.firm-logo-img { width: 220px; object-fit: contain; }
.login-sub-text { font-size: 12px; color: var(--text-muted); text-align: center; letter-spacing: 0.5px; }
.sidebar-logo-img { width: 150px; object-fit: contain; background: rgba(255,255,255,0.95); border-radius: 6px; padding: 8px 12px; }
#login-form .form-group { margin-bottom: 16px; }
#login-form label { display: block; font-size: 13px; font-weight: 500; color: var(--text-muted); margin-bottom: 6px; }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin-bottom: 12px; }

/* ── Main App wrapper ── */
#main-app { display: flex; height: 100vh; overflow: hidden; }
#main-app.hidden { display: none; }

/* ── Topbar user area ── */
.topbar-right { display: flex; align-items: center; gap: 14px; }
.user-menu { display: flex; align-items: center; gap: 10px; }
#user-name-display { font-size: 13px; font-weight: 600; color: var(--text); }

/* ── Live sync dot ── */
.sync-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #cbd5e1; display: inline-block; flex-shrink: 0;
  transition: background 0.3s;
}
.sync-dot.active { background: var(--success); box-shadow: 0 0 6px var(--success); }

/* ── Responsive ── */
@media (max-width: 768px) {
  #sidebar { position: fixed; z-index: 100; height: 100vh; transform: translateX(-100%); transition: transform 0.3s; }
  #sidebar.open { transform: translateX(0); }
  #main { margin-left: 0 !important; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .user-menu #user-name-display { display: none; }
}