:root {
  --navy: #16264d;
  --navy-light: #1f3868;
  --gold: #c8a35a;
  --gold-light: #e0c384;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1c2333;
  --muted: #6b7280;
  --danger: #d64545;
  --success: #2f9e5c;
  --warning: #e0a11a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

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

.sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--navy) 0%, #0e1830 100%);
  color: #fff;
  flex-shrink: 0;
  padding: 20px 0;
  display: flex;
  flex-direction: column;
}

.sidebar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 10px;
}
.sidebar .brand img { width: 38px; height: 38px; border-radius: 8px; background: #fff; padding: 2px; }
.sidebar .brand .name { font-weight: 700; font-size: 14px; line-height: 1.2; }
.sidebar .brand .sub { font-size: 10px; color: var(--gold-light); letter-spacing: 1px; text-transform: uppercase; }

.sidebar nav { flex: 1; overflow-y: auto; }
.sidebar .section-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,0.4); padding: 14px 20px 6px; }
.sidebar a.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; font-size: 14px; color: rgba(255,255,255,0.85);
  border-left: 3px solid transparent;
}
.sidebar a.nav-link:hover { background: rgba(255,255,255,0.06); }
.sidebar a.nav-link.active { background: rgba(200,163,90,0.15); border-left-color: var(--gold); color: #fff; font-weight: 600; }
.sidebar .user-box { padding: 14px 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 12px; }
.sidebar .user-box .role-badge { display: inline-block; margin-top: 4px; background: var(--gold); color: var(--navy); padding: 2px 8px; border-radius: 10px; font-size: 10px; font-weight: 700; text-transform: uppercase; }
.sidebar .logout-link { color: #f0a; }

.main { flex: 1; min-width: 0; }
.topbar {
  background: #fff; padding: 14px 28px; display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid #e5e8f0; position: sticky; top: 0; z-index: 5;
}
.topbar h1 { font-size: 18px; margin: 0; color: var(--navy); }
.content { padding: 24px 28px 60px; }

/* ---------- Cards / KPIs ---------- */
.grid { display: grid; gap: 18px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1000px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border-radius: 12px; padding: 20px;
  box-shadow: 0 1px 3px rgba(20,30,60,0.06); border: 1px solid #edf0f7;
}
.kpi .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.kpi .value { font-size: 26px; font-weight: 700; color: var(--navy); }
.kpi .delta { font-size: 12px; margin-top: 6px; }
.kpi .delta.up { color: var(--success); }
.kpi .delta.down { color: var(--danger); }

.section-title { font-size: 16px; font-weight: 700; color: var(--navy); margin: 30px 0 14px; display: flex; align-items: center; gap: 8px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--navy); color: #fff; border: none; padding: 10px 18px;
  border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--navy-light); }
.btn.gold { background: var(--gold); color: var(--navy); }
.btn.gold:hover { background: var(--gold-light); }
.btn.outline { background: transparent; color: var(--navy); border: 1px solid var(--navy); }
.btn.danger { background: var(--danger); }
.btn.sm { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border: 1px solid #d8dce8; border-radius: 8px; font-size: 14px; background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--gold); }
.form-row { display: flex; gap: 16px; }
.form-row > .form-group { flex: 1; }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ---------- Tables ---------- */
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th { text-align: left; background: #f6f7fc; color: var(--navy); padding: 10px 12px; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
table.data-table td { padding: 10px 12px; border-bottom: 1px solid #f0f1f6; }
table.data-table tr:hover td { background: #fafbff; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; text-transform: uppercase; }
.badge.active, .badge.paid, .badge.disbursed, .badge.completed { background: #e3f6ea; color: var(--success); }
.badge.pending, .badge.partial, .badge.draft { background: #fdf3dd; color: var(--warning); }
.badge.past_due, .badge.lossing, .badge.written_off, .badge.unpaid { background: #fbe6e6; color: var(--danger); }

/* ---------- Product picker ---------- */
.product-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.product-card {
  background: #fff; border: 2px solid #e5e8f0; border-radius: 14px; padding: 28px; text-align: center; cursor: pointer;
  transition: all .15s ease;
}
.product-card:hover { border-color: var(--gold); box-shadow: 0 6px 18px rgba(20,30,60,0.08); transform: translateY(-2px); }
.product-card .icon { font-size: 40px; margin-bottom: 12px; }
.product-card h3 { color: var(--navy); margin: 0 0 8px; }
.product-card p { color: var(--muted); font-size: 13px; margin: 0; }

/* ---------- Login ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--navy) 0%, #0e1830 100%); }
.login-card { background: #fff; border-radius: 16px; padding: 40px; width: 380px; text-align: center; box-shadow: 0 20px 50px rgba(0,0,0,0.3); }
.login-card img { width: 90px; margin-bottom: 10px; }
.login-card h2 { color: var(--navy); margin: 0 0 4px; }
.login-card .sub { color: var(--gold); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 24px; }
.login-card .btn { width: 100%; justify-content: center; margin-top: 8px; }
.error-msg { background: #fbe6e6; color: var(--danger); padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; }

.flow-steps { display: flex; gap: 6px; margin-bottom: 24px; }
.flow-steps .step { flex: 1; padding: 8px; text-align: center; border-radius: 8px; font-size: 12px; font-weight: 700; background: #eef0f8; color: var(--muted); }
.flow-steps .step.done { background: var(--gold); color: var(--navy); }
.flow-steps .step.current { background: var(--navy); color: #fff; }

.chart-wrap { position: relative; height: 280px; }