:root {
    --bg: #f4f6f9;
    --panel: #ffffff;
    --border: #e2e6ec;
    --text: #1b2430;
    --muted: #6b7685;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --green: #16a34a;
    --red: #dc2626;
    --amber: #d97706;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
}

/* ---- Login ---- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.login-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 320px;
    box-shadow: 0 4px 20px rgba(0,0,0,.06);
}
.login-box h1 { font-size: 18px; margin: 0 0 16px; }
.login-box label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
.login-box input {
    display: block; width: 100%; margin-top: 4px; padding: 9px 10px;
    border: 1px solid var(--border); border-radius: 6px; font-size: 14px;
}
.login-box button {
    width: 100%; padding: 10px; background: var(--accent); color: #fff; border: none;
    border-radius: 6px; font-size: 14px; cursor: pointer; margin-top: 6px;
}
.login-box button:hover { background: var(--accent-dark); }
.error { color: var(--red); font-size: 13px; }

/* ---- Topbar ---- */
.topbar { background: var(--panel); border-bottom: 1px solid var(--border); }
.topbar-inner {
    max-width: 1400px; margin: 0 auto; padding: 0 20px; height: 56px;
    display: flex; align-items: center; gap: 24px;
}
.brand { font-weight: 700; font-size: 15px; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a {
    padding: 8px 14px; border-radius: 6px; text-decoration: none; color: var(--muted); font-size: 13.5px;
}
.topbar nav a:hover { background: var(--bg); color: var(--text); }
.topbar nav a.active { background: var(--accent); color: #fff; }
.user-box { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.user-box a { color: var(--accent); text-decoration: none; }

/* ---- Layout ---- */
.page { max-width: 1400px; margin: 0 auto; padding: 20px; }
.page h1 { font-size: 19px; margin: 0 0 4px; }
.page .subtitle { color: var(--muted); margin: 0 0 18px; font-size: 13px; }

/* ---- Stat cards ---- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card {
    background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 14px 16px;
}
.stat-card .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.stat-card .value { font-size: 20px; font-weight: 700; margin-top: 4px; }
.stat-card .value.green { color: var(--green); }
.stat-card .value.red { color: var(--red); }
.stat-card .value.amber { color: var(--amber); }

/* ---- Panels ---- */
.panel {
    background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 16px; margin-bottom: 20px;
}
.panel h2 { font-size: 15px; margin: 0 0 12px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.panel-head h2 { margin: 0; }

/* ---- Table / spreadsheet ---- */
.table-wrap { overflow-x: auto; }
table.grid { border-collapse: collapse; width: 100%; min-width: 1100px; font-size: 13px; }
table.grid th {
    text-align: left; background: #f8f9fb; color: var(--muted); font-weight: 600;
    padding: 8px 6px; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0;
}
table.grid td {
    padding: 2px; border-bottom: 1px solid var(--border); vertical-align: middle;
}
table.grid tbody tr:hover { background: #fafbfd; }
table.grid input, table.grid select {
    width: 100%; border: 1px solid transparent; background: transparent; padding: 7px 6px;
    font-size: 13px; border-radius: 5px; font-family: inherit; color: var(--text);
}
table.grid input:hover, table.grid select:hover { border-color: var(--border); }
table.grid input:focus, table.grid select:focus {
    outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 2px rgba(37,99,235,.15);
}
table.grid input[type=number] { text-align: right; }
table.grid input[type=checkbox] { width: 16px; height: 16px; margin-left: 8px; }
table.grid td.readonly { color: var(--muted); padding: 7px 8px; white-space: nowrap; }
table.grid td.profit-pos { color: var(--green); font-weight: 600; }
table.grid td.profit-neg { color: var(--red); font-weight: 600; }
table.grid tr.saving td { background: #fffbea; }
table.grid tr.new-row td { background: #f0f7ff; }
.row-del { background: none; border: none; color: var(--red); cursor: pointer; font-size: 15px; padding: 4px 8px; }
.row-del:hover { text-decoration: underline; }
.save-indicator { font-size: 11px; color: var(--muted); margin-left: 10px; }
.save-indicator.ok { color: var(--green); }
.save-indicator.err { color: var(--red); }

/* ---- Buttons ---- */
.btn {
    display: inline-block; padding: 8px 14px; background: var(--accent); color: #fff;
    border: none; border-radius: 6px; font-size: 13px; cursor: pointer; text-decoration: none;
}
.btn:hover { background: var(--accent-dark); }
.btn.secondary { background: var(--panel); color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: var(--bg); }

/* ---- Forms (overview page modals-ish inline forms) ---- */
.form-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.form-row .field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.form-row input, .form-row select {
    padding: 8px 9px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; min-width: 130px;
}

/* ---- Simple totals table (payments page) ---- */
table.totals { border-collapse: collapse; width: 100%; font-size: 13.5px; }
table.totals th, table.totals td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: right; }
table.totals th:first-child, table.totals td:first-child { text-align: left; }
table.totals thead th { background: #f8f9fb; color: var(--muted); font-weight: 600; }
table.totals tfoot td { font-weight: 700; border-top: 2px solid var(--border); border-bottom: none; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.yes { background: #dcfce7; color: #15803d; }
.badge.no { background: #fee2e2; color: #b91c1c; }

.txn-type-deposit, .txn-type-transfer_in { color: var(--green); }
.txn-type-withdrawal, .txn-type-transfer_out { color: var(--red); }

/* ---- Mobile: shipments grid becomes stacked cards instead of a wide table ---- */
@media (max-width: 720px) {
    .page { padding: 12px; }
    .topbar-inner { flex-wrap: wrap; height: auto; padding: 10px 12px; gap: 8px 16px; }
    .topbar nav { flex: 1 1 100%; order: 3; gap: 2px; }
    .topbar nav a { padding: 8px 10px; font-size: 13px; }

    .stat-row { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 12px; }
    .stat-card .value { font-size: 17px; }

    .panel-head { flex-direction: column; align-items: stretch; gap: 10px; }
    .panel-head > div { display: flex; flex-wrap: wrap; gap: 8px; }
    .panel-head .btn, .panel-head .btn.secondary { flex: 1 1 auto; text-align: center; padding: 10px 12px; }
    .save-indicator { flex: 1 1 100%; text-align: center; }

    /* Turn the spreadsheet-style table into one card per shipment */
    .table-wrap { overflow-x: visible; }
    table.grid { min-width: 0; }
    table.grid thead { display: none; }
    table.grid, table.grid tbody { display: block; width: 100%; }
    table.grid tr {
        display: block;
        background: var(--panel);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-bottom: 12px;
        padding: 6px 12px;
    }
    table.grid tr.saving { background: #fffbea; }
    table.grid td {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 9px 0;
        border-bottom: 1px solid var(--bg);
        width: 100%;
    }
    table.grid td:last-child { border-bottom: none; justify-content: flex-end; padding-top: 4px; }
    table.grid td[data-label]::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--muted);
        font-size: 12.5px;
        flex-shrink: 0;
    }
    table.grid td.readonly { padding: 9px 0; white-space: normal; }
    table.grid input, table.grid select {
        flex: 1;
        min-width: 0;
        max-width: 62%;
        min-height: 40px;
        font-size: 15px; /* keeps iOS Safari from auto-zooming on focus */
        text-align: right;
    }
    table.grid input[type="text"], table.grid input[type="date"] { text-align: left; }
    table.grid input[type="checkbox"] { flex: none; width: 22px; height: 22px; margin: 0; }
    .row-del { font-size: 20px; padding: 6px 10px; }

    .form-row { flex-direction: column; align-items: stretch; }
    .form-row .field, .form-row input, .form-row select { min-width: 0; width: 100%; }
    .form-row .btn { width: 100%; text-align: center; padding: 11px; }

    table.totals { font-size: 13px; }
    table.totals th, table.totals td { padding: 8px 6px; }
}