:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --text: #1d2733;
    --muted: #66707d;
    --border: #dde3ea;
    --primary: #0057e0;
    --primary-dark: #0047b8;
    --danger: #d64545;
    --success-bg: #e5f6ec;
    --success-fg: #1e7b3c;
    --danger-bg: #fdeaea;
    --danger-fg: #a33;
    --cashin: #0074d9;
    --cashout: #b10dc9;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.5;
}

/* Top bar */
.topbar {
    background: #14213d;
    color: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,.2);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    min-height: 56px;
}
.brand { font-weight: 700; font-size: 16px; padding: 8px 0; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
    color: #cdd6e4;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
}
.nav a:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav a.active { background: var(--primary); color: #fff; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.user-chip { font-size: 13px; color: #cdd6e4; }
.nav-toggle { display: none; background: none; border: 1px solid #44506b; color: #fff; border-radius: 6px; padding: 4px 10px; font-size: 16px; cursor: pointer; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 20px 16px 40px; }
.page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.page-head h1 { margin: 0; font-size: 22px; }
.footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 16px; }

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}
.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.card-head h2 { margin: 0; font-size: 16px; }
.stat-card .stat-label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.stat-card .stat-value { font-size: 24px; font-weight: 700; margin-top: 4px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr:last-child td { border-bottom: none; }
td.empty { text-align: center; color: var(--muted); padding: 24px; }
tr.clickable { cursor: pointer; }
tr.clickable:hover { background: #f0f5fc; }
.notes-cell { max-width: 200px; overflow-wrap: anywhere; }
td.pos { color: var(--success-fg); }
td.neg { color: var(--danger-fg); }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-cashin { background: #e3f0fd; color: var(--cashin); }
.badge-cashout { background: #f5e6fa; color: var(--cashout); }
.badge-paid { background: var(--success-bg); color: var(--success-fg); }
.badge-unpaid { background: #fff4e0; color: #a06a00; }

/* Forms */
label { display: block; font-size: 13px; color: var(--muted); font-weight: 600; margin-bottom: 4px; }
input, select, textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    margin-top: 4px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #b6d2f7; border-color: var(--primary); }
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}
.form-grid .span-2 { grid-column: span 2; }
.form-inline { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.form-inline label { margin-bottom: 0; }
.form-inline input, .form-inline select { width: 180px; }
.filters .filter-actions { display: flex; gap: 8px; align-self: end; padding-top: 22px; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: #fff;
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}
.btn:hover { background: #f0f3f7; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { background: #b93636; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: default; }

/* Fee table input row (always the last row) */
.fee-input-row td { padding-top: 12px; }
.fee-input-row input { width: 100%; min-width: 120px; }
.fee-actions { white-space: nowrap; display: flex; gap: 6px; }

/* Preview */
.preview {
    background: #f0f5fc;
    border: 1px solid #cfe0f7;
    border-radius: var(--radius);
    padding: 14px;
    margin: 12px 0;
}
.preview h3 { margin: 0 0 8px; font-size: 14px; text-transform: uppercase; letter-spacing: .04em; color: var(--primary-dark); }
.preview dl { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0; }
.preview dt { color: var(--muted); font-size: 13px; }
.preview dd { margin: 0; font-weight: 600; font-size: 14px; font-variant-numeric: tabular-nums; }

/* Alerts */
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.alert-success { background: var(--success-bg); color: var(--success-fg); }
.alert-danger { background: var(--danger-bg); color: var(--danger-fg); }

/* Pagination */
.pagination { display: flex; align-items: center; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 14px; }

.muted { color: var(--muted); font-size: 13px; }
.inline-form { display: inline; }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 16, 30, 0.55);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 24px 16px;
    overflow-y: auto;
    z-index: 100;
}
.modal-overlay[hidden] { display: none; }
.modal {
    background: #fff;
    border-radius: var(--radius);
    width: 100%;
    max-width: 760px;
    box-shadow: 0 18px 50px rgba(0,0,0,.35);
}
.modal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
}
.modal-head h2 { margin: 0; font-size: 17px; }
.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    line-height: 1;
    color: var(--muted);
    cursor: pointer;
    padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 18px; }
.modal-card { border: none; margin-bottom: 0; padding: 0; }
.modal-card .card-head { display: none; }

/* Login */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: #14213d; }
.login-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 30px rgba(0,0,0,.3);
}
.login-card h1 { font-size: 18px; margin-top: 0; }
.login-card label { margin-bottom: 12px; }

/* Responsive */
@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .nav { display: none; width: 100%; flex-direction: column; padding-bottom: 10px; }
    .nav.open { display: flex; }
    .topbar-inner { padding-bottom: 8px; }
    .form-inline input, .form-inline select { width: 100%; }
    .form-grid .span-2 { grid-column: span 1; }
    .page-head h1 { font-size: 19px; }
}