:root {
  --bg: #0f1117;
  --bg2: #171b26;
  --bg3: #1e2333;
  --card: #1a1f2e;
  --border: rgba(255,255,255,0.08);
  --border2: rgba(255,255,255,0.14);
  --text: #e8eaf0;
  --muted: #7c8499;
  --accent: #4f8ef7;
  --accent2: #3a6fd8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --green-soft: rgba(34,197,94,0.12);
  --red-soft: rgba(239,68,68,0.12);
  --blue-soft: rgba(79,142,247,0.12);
  --amber-soft: rgba(245,158,11,0.12);
  --radius: 10px;
  --radius-lg: 14px;
  --font: 'Inter', system-ui, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.sidebar {
  width: 240px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo .logo-mark {
  display: flex; align-items: center; gap: 10px;
}

.logo-icon {
  width: 34px; height: 34px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; color: #fff;
}

.logo-text { font-size: 15px; font-weight: 600; color: var(--text); }
.logo-sub { font-size: 11px; color: var(--muted); margin-top: 1px; }

.sidebar-nav { flex: 1; padding: 12px 10px; }

.nav-section {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 12px 10px 6px;
}

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  margin-bottom: 2px;
}

.nav-item:hover { background: var(--bg3); color: var(--text); text-decoration: none; }
.nav-item.active { background: var(--blue-soft); color: var(--accent); }
.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; }

.sidebar-footer {
  padding: 14px;
  border-top: 1px solid var(--border);
}

.user-pill {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--bg3);
}

.user-avatar {
  width: 30px; height: 30px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--muted); }

.main-content {
  margin-left: 240px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: 58px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky; top: 0; z-index: 50;
}

.topbar-title { font-size: 15px; font-weight: 600; color: var(--text); flex: 1; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }

.page-body { padding: 28px; flex: 1; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}

.card-title { font-size: 14px; font-weight: 600; color: var(--text); }
.card-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* Stats grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.stat-label { font-size: 12px; color: var(--muted); font-weight: 500; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--text); margin: 6px 0 4px; letter-spacing: -0.5px; }
.stat-value.accent { color: var(--accent); }
.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-value.danger { color: var(--danger); }
.stat-badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 2px 7px; border-radius: 20px; font-weight: 500; }
.stat-badge.up { background: var(--green-soft); color: var(--success); }
.stat-badge.down { background: var(--red-soft); color: var(--danger); }

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* Table */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-success { background: var(--green-soft); color: var(--success); }
.badge-warning { background: var(--amber-soft); color: var(--warning); }
.badge-danger { background: var(--red-soft); color: var(--danger); }
.badge-info { background: var(--blue-soft); color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-ghost { background: var(--bg3); color: var(--text); border: 1px solid var(--border2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--red-soft); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Forms */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 7px; text-transform: uppercase; letter-spacing: 0.04em; }
.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
  font-family: var(--font);
}
.form-control:focus { border-color: var(--accent); }
.form-control::placeholder { color: var(--muted); }
select.form-control option { background: var(--bg3); }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Progress bar */
.progress { background: var(--bg3); border-radius: 99px; height: 6px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--accent); border-radius: 99px; transition: width 0.4s; }
.progress-bar.success { background: var(--success); }

/* Flash messages */
.flash { padding: 12px 18px; border-radius: 8px; margin-bottom: 18px; font-size: 13.5px; font-weight: 500; }
.flash-success { background: var(--green-soft); color: var(--success); border: 1px solid rgba(34,197,94,0.2); }
.flash-error { background: var(--red-soft); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }

/* Login */
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
.login-box {
  width: 100%; max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .logo-icon { width: 48px; height: 48px; font-size: 22px; margin: 0 auto 12px; border-radius: 12px; }
.login-logo h1 { font-size: 20px; font-weight: 700; }
.login-logo p { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* Schedule table colors */
.row-paid td { color: var(--muted); }
.row-paid td:first-child { text-decoration: line-through; }
.row-overdue td { color: var(--danger); }
.row-current td { background: var(--blue-soft); }

/* Loan detail summary boxes */
.loan-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 24px; }
.meta-box { background: var(--bg3); border-radius: var(--radius); padding: 16px; }
.meta-label { font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.meta-value { font-size: 20px; font-weight: 700; margin-top: 5px; color: var(--text); }
.meta-value.danger { color: var(--danger); }
.meta-value.success { color: var(--success); }
.meta-value.warning { color: var(--warning); }

/* Statement */
.statement-header { border-bottom: 2px solid var(--border2); padding-bottom: 20px; margin-bottom: 24px; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .loan-meta { grid-template-columns: 1fr 1fr; }
}