:root {
    --bg: #f3f4f6;
    --panel: #ffffff;
    --border: #e5e7eb;
    --border-strong: #d4d7dd;
    --text: #1a1d23;
    --muted: #6b7280;
    --primary: #2d5a3d;
    --primary-dark: #1f3f2b;
    --primary-light: #eaf2ec;
    --warning-bg: #fdecec;
    --warning-text: #a12a2a;
    --soon-bg: #fff6e0;
    --soon-text: #8a6100;
    --ok-bg: #e8f3ec;
    --ok-text: #206a3f;
    --shadow-sm: 0 1px 2px rgba(16, 24, 32, 0.06);
    --shadow-md: 0 4px 14px rgba(16, 24, 32, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------------------------------
   Top nav - a normal row on wide screens, a hamburger-collapsed panel on
   narrow ones (toggled by app.js, no page reload).
   --------------------------------------------------------------------- */
.topnav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(180deg, var(--primary-dark), #17301f);
    padding: 14px 24px;
    color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 20;
}

.topnav .brand { font-weight: 700; font-size: 1.08rem; letter-spacing: -.01em; }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    color: white;
    padding: 6px 10px;
    font-size: 1.1rem;
    cursor: pointer;
    line-height: 1;
}

.nav-links { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }

.nav-links a {
    color: #cfe0d5;
    text-decoration: none;
    padding: 7px 11px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: background-color .12s ease, color .12s ease;
}

.nav-links a:hover { color: white; background: rgba(255,255,255,0.08); }
.nav-links a.active { color: white; font-weight: 600; background: rgba(255,255,255,0.14); }

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 28px 24px 60px;
}

h1 { margin-top: 0; letter-spacing: -.01em; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .15s ease, transform .15s ease;
}

.stat-card.stat-warning { border-color: var(--warning-text); background: var(--warning-bg); }
.stat-card-link { display: block; text-decoration: none; color: inherit; }
.stat-card-link:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-1px); }

.stat-icon { font-size: 1.15rem; margin-bottom: 6px; }
.stat-label { color: var(--muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
.stat-value { font-size: 1.7rem; font-weight: 700; margin-top: 6px; letter-spacing: -.01em; }
.stat-sub { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.panel-inactive { opacity: 0.6; }

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.panel h2 { margin-top: 0; font-size: 1.08rem; letter-spacing: -.01em; }

.simple-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.simple-table th, .simple-table td {
    text-align: left;
    padding: 10px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}
.simple-table th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .03em; }
.simple-table tbody tr { transition: background-color .1s ease; }
.simple-table tbody tr:hover { background: var(--primary-light); }
.row-inactive { opacity: 0.5; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.row-actions form { display: inline; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}
.badge-overdue { background: var(--warning-bg); color: var(--warning-text); }
.badge-due-today { background: var(--soon-bg); color: var(--soon-text); }
.badge-due-soon { background: var(--soon-bg); color: var(--soon-text); }
.badge-upcoming { background: var(--ok-bg); color: var(--ok-text); }

.attention-list { list-style: none; padding: 0; margin: 8px 0 0; }
.attention-list li {
    padding: 9px 12px;
    background: var(--warning-bg);
    color: var(--warning-text);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    font-size: 0.92rem;
}

.link-more { display: inline-block; margin-top: 10px; color: var(--primary); text-decoration: none; font-weight: 600; font-size: 0.9rem; }
.link-more:hover { text-decoration: underline; }

.muted { color: var(--muted); }

.btn {
    border: 1px solid var(--border-strong);
    background: white;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color .12s ease, box-shadow .12s ease, transform .08s ease;
    text-decoration: none;
    color: var(--text);
    display: inline-block;
}
.btn:hover { box-shadow: var(--shadow-sm); background: #fafafa; }
.btn:active { transform: translateY(1px); }
.btn-small { padding: 5px 10px; font-size: 0.82rem; }
.btn-primary { background: var(--primary); color: white; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); }

.inline-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; }
.inline-form input { padding: 7px 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }
.mark-paid-amount { width: 80px; padding: 5px 7px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); }

.grid-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    align-items: end;
}
.grid-form label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--muted); gap: 4px; font-weight: 500; }
.grid-form input, .grid-form select {
    padding: 9px 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--text);
    background: white;
}
.grid-form input:focus, .grid-form select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.grid-form .full-width { grid-column: 1 / -1; }
.grid-form .checkbox-label { flex-direction: row; align-items: center; gap: 6px; }
.grid-form button { grid-column: 1 / -1; justify-self: start; }

.auth-box {
    max-width: 380px;
    margin: 80px auto;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-md);
}
.auth-box form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
.auth-box label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; color: var(--muted); }
.auth-box input { padding: 10px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); font-size: 1rem; }

.flash {
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.92rem;
    box-shadow: var(--shadow-sm);
}
.flash-error { background: var(--warning-bg); color: var(--warning-text); }
.flash-success { background: var(--ok-bg); color: var(--ok-text); }

/* Calendar */
.cal-nav { display: flex; gap: 8px; }
.cal-grid { width: 100%; border-collapse: collapse; table-layout: fixed; }
.cal-grid th {
    text-align: left;
    padding: 6px 8px;
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.cal-day {
    border: 1px solid var(--border);
    vertical-align: top;
    padding: 6px;
    height: 100px;
    width: 14.28%;
}
.cal-day-outside { background: #fafafa; color: var(--muted); }
.cal-day-today { background: var(--ok-bg); border: 2px solid var(--primary); }
.cal-day-number { font-weight: 700; margin-bottom: 4px; }
.cal-chip {
    font-size: 0.78rem;
    line-height: 1.3;
    padding: 2px 6px;
    border-radius: 5px;
    margin-bottom: 3px;
    word-break: break-word;
}
.cal-chip-appt { background: #e3edf7; color: #1d4e7a; }
.cal-chip-bill { background: var(--soon-bg); color: var(--soon-text); }
.cal-chip-income { background: var(--ok-bg); color: var(--ok-text); }
.cal-day-total { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }

/* Settings / kiosk URL */
.kiosk-url {
    font-family: "Courier New", monospace;
    background: #f2f4f2;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    word-break: break-all;
    border: 1px solid var(--border);
}
code { background: #eef0f2; padding: 1px 5px; border-radius: 4px; }

/* ---------------------------------------------------------------------
   Mobile (≤800px): collapsible nav + tables become stacked cards.
   Table cell labels come from data-label attributes that app.js sets
   automatically from each table's header row, so no template changes
   were needed to make every existing (and future) .simple-table
   responsive.
   --------------------------------------------------------------------- */
@media (max-width: 800px) {
    .two-col { grid-template-columns: 1fr; }
    .container { padding: 18px 14px 50px; }

    .nav-toggle { display: inline-block; }
    .nav-links {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        margin-top: 12px;
        gap: 2px;
    }
    .nav-links.nav-open { display: flex; }
    .topnav { flex-wrap: wrap; }
    .nav-links a { padding: 10px 12px; }

    .simple-table thead { display: none; }
    .simple-table, .simple-table tbody, .simple-table tr, .simple-table td { display: block; width: 100%; }
    .simple-table tr {
        margin-bottom: 12px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 10px 12px;
        background: var(--panel);
        box-shadow: var(--shadow-sm);
    }
    .simple-table td {
        border-bottom: none;
        padding: 5px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
        text-align: right;
    }
    .simple-table td[data-label]:not([data-label=""])::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--muted);
        text-align: left;
        margin-right: auto;
        font-size: 0.82rem;
    }
    .simple-table td.row-actions { justify-content: flex-start; }
    .simple-table td.row-actions::before { content: none; }
}