:root {
    --deep-teal: #073f46;
    --teal: #0f7f8c;
    --aqua: #24bfd0;
    --mint: #c8f5df;
    --mint-soft: #edfff7;
    --coral: #ff6f61;
    --coral-soft: #fff0ed;
    --sun: #ffd166;
    --ink: #12333b;
    --muted: #62777d;
    --line: #cde8e6;
    --surface: #ffffff;
    --page: #f2fbfa;
    --shadow: 0 12px 32px rgba(7, 63, 70, .10);
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
    min-height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
    background:
        radial-gradient(circle at 12% -6%, rgba(36, 191, 208, .18), transparent 34%),
        linear-gradient(180deg, #f4fffb 0%, var(--page) 42%, #f8fbff 100%);
    color: var(--ink);
}

a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--deep-teal); }

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 14px 24px;
    background: var(--deep-teal);
    color: #fff;
    box-shadow: 0 6px 18px rgba(7, 63, 70, .20);
}

.topbar a {
    color: #eafff8;
    margin-right: 14px;
    font-weight: 700;
}

.topbar a:hover { color: var(--mint); }

.brand a {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-weight: 800;
    font-size: 18px;
    letter-spacing: 0;
}

.brand a::before {
    content: "";
    width: 22px;
    height: 22px;
    border-radius: 50% 50% 48% 52%;
    background: linear-gradient(135deg, var(--mint), var(--aqua));
    box-shadow: inset -4px -5px 0 rgba(7, 63, 70, .18);
}

.inline-form { display: inline; }

.inline-form button {
    background: rgba(255, 255, 255, .08);
    color: #fff;
    border: 1px solid rgba(200, 245, 223, .55);
    padding: 7px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
}

.inline-form button:hover { background: rgba(200, 245, 223, .18); }

.container {
    max-width: 1220px;
    margin: 28px auto;
    padding: 0 18px 38px;
}

.hero,
.form-card,
.login-card,
.stats > div {
    background: rgba(255, 255, 255, .94);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 22px;
    box-shadow: var(--shadow);
}

.hero {
    border-top: 5px solid var(--aqua);
}

.hero h1,
.page-header h1,
h1 {
    color: var(--deep-teal);
    margin-top: 0;
}

h2 {
    color: var(--deep-teal);
}

.login-card {
    max-width: 420px;
    margin: 64px auto;
    border-top: 5px solid var(--coral);
}

.btn {
    display: inline-block;
    border: 1px solid var(--line);
    padding: 9px 14px;
    border-radius: 8px;
    background: #fff;
    margin: 4px 8px 4px 0;
    color: var(--deep-teal);
    cursor: pointer;
    font-weight: 700;
    box-shadow: 0 2px 0 rgba(7, 63, 70, .05);
}

.btn:hover {
    border-color: var(--aqua);
    background: var(--mint-soft);
}

.btn.primary {
    background: linear-gradient(135deg, var(--teal), var(--aqua));
    color: #fff;
    border-color: transparent;
}

.btn.primary:hover {
    background: linear-gradient(135deg, var(--deep-teal), var(--teal));
    color: #fff;
}

dialog {
    width: min(440px, calc(100% - 32px));
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    box-shadow: var(--shadow);
    padding: 22px;
}

dialog::backdrop { background: rgba(7, 63, 70, .35); }

.dialog-actions { margin-top: 16px; }

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
    margin-top: 16px;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(7, 63, 70, .06);
}

th,
td {
    padding: 11px 12px;
    border-bottom: 1px solid #e4f2f1;
    text-align: left;
    font-size: 14px;
}

tr:last-child td { border-bottom: 0; }

th {
    background: #dff7f4;
    color: var(--deep-teal);
    font-weight: 800;
}

tbody tr:hover { background: #f7fffd; }

.trainer-shift-cell {
    min-width: 150px;
    vertical-align: top;
}

.trainer-shift-line + .trainer-shift-line {
    margin-top: 5px;
}

.form-row { margin-bottom: 14px; }

.form-row label,
.login-card label,
.branch-selector label {
    display: block;
    font-weight: 800;
    margin-bottom: 6px;
    color: var(--deep-teal);
}

.form-row .checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.checkbox-row input[type="checkbox"],
.checkbox-input {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    padding: 0;
    margin: 0;
    border-radius: 3px;
    accent-color: var(--teal);
}

input,
select,
textarea,
.form-control {
    width: 100%;
    padding: 10px 11px;
    border: 1px solid #b8d7d5;
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
}

input:focus,
select:focus,
textarea:focus,
.form-control:focus {
    outline: none;
    border-color: var(--aqua);
    box-shadow: 0 0 0 3px rgba(36, 191, 208, .18);
}

input[type="checkbox"] {
    width: auto;
    padding: 0;
    margin: 0;
}

select.substitute-trainer-field {
    border-color: var(--coral);
    background: var(--coral-soft);
    box-shadow: 0 0 0 3px rgba(255, 111, 97, .18);
}

.login-card input { margin-bottom: 14px; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.branch-selector {
    background: #ffffff;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--line);
    margin-bottom: 18px;
    max-width: 370px;
    box-shadow: 0 8px 20px rgba(7, 63, 70, .06);
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 16px 0;
}

.stats > div {
    border-top: 4px solid var(--aqua);
}

.stats span {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.stats strong {
    color: var(--deep-teal);
    font-size: 20px;
}

.message {
    padding: 11px 13px;
    border-radius: 8px;
    margin-bottom: 10px;
    background: var(--mint-soft);
    border: 1px solid #aee7d6;
    color: var(--deep-teal);
}

.error {
    color: #b42318;
    font-size: 13px;
    margin-top: 4px;
}

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

.warning-text {
    color: #bf4d43;
    font-weight: 800;
}

.trainer-autofill-note,
.trainer-warning {
    margin: -4px 0 14px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
}

.trainer-autofill-note {
    background: #ecfbff;
    border: 1px solid #aeeaf2;
    color: #075a64;
}

.trainer-warning {
    background: var(--coral-soft);
    border: 1px solid #ffb2aa;
    color: #9f2f26;
}

.trainer-warning strong {
    display: block;
    margin-top: 4px;
}

.sync-form {
    display: grid;
    grid-template-columns: minmax(180px, 240px) auto auto;
    gap: 10px;
    align-items: end;
    margin-top: 16px;
}

.sync-form label {
    grid-column: 1;
    font-weight: 800;
    color: var(--deep-teal);
}

.sync-form input { grid-column: 1; }

.month-switcher {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-right: 8px;
}

.month-switcher input {
    width: auto;
    min-width: 150px;
}

.notice {
    background: #eafff8;
    border: 1px solid #aee7d6;
    border-left: 5px solid var(--aqua);
    border-radius: 8px;
    padding: 12px 14px;
    margin: 12px 0 16px;
    color: var(--deep-teal);
}

.shift-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.shift-card {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 16px;
    background: linear-gradient(180deg, #ffffff 0%, #f6fffd 100%);
}

.shift-card h2 {
    margin-top: 0;
    font-size: 18px;
    color: var(--deep-teal);
}

.common-fields { margin-bottom: 16px; }

.table-scroll {
    overflow-x: auto;
    width: 100%;
}

.table-scroll table { min-width: 1400px; }

.trial-refresh-form {
    display: flex;
    align-items: end;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0 0 18px;
}

.trial-refresh-form label {
    display: grid;
    gap: 6px;
    font-weight: 700;
}

.trial-refresh-form input { min-width: 190px; }

.compact-table table { min-width: 720px; }

.payroll-total {
    margin-top: 20px;
    padding: 18px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--deep-teal), var(--teal));
    color: #fff;
    font-size: 20px;
    box-shadow: var(--shadow);
}

.report-filter-form {
    display: grid;
    grid-template-columns: repeat(3, minmax(170px, 1fr)) auto auto;
    gap: 12px;
    align-items: end;
    margin-bottom: 22px;
}

.report-filter-form .form-row { margin: 0; }

.report-section { margin: 28px 0 36px; }

.report-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.report-card {
    background: rgba(255, 255, 255, .96);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
    box-shadow: var(--shadow);
}

.report-card h3 { margin: 0 0 12px; color: var(--deep-teal); }

.report-kpis {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.report-kpis > div {
    padding: 9px 11px;
    border-radius: 8px;
    background: var(--mint-soft);
}

.report-kpis span { display: block; color: var(--muted); font-size: 12px; }
.report-kpis strong { color: var(--deep-teal); }

.report-chart,
.chart-wide canvas {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 12px;
}

.chart-wide { overflow-x: auto; }
.chart-wide canvas { min-width: 820px; }

.compact-report-table { box-shadow: none; margin-top: 8px; }
.compact-report-table th,
.compact-report-table td { padding: 7px 8px; font-size: 12px; }

.plan-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    gap: 12px;
    align-items: end;
}

.plan-grid .form-row { margin: 0; }
.plan-submit { align-self: end; }

.baseline-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.baseline-list span {
    padding: 8px 11px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--line);
}

@media (max-width: 800px) {
    .stats { grid-template-columns: 1fr 1fr; }
    .topbar {
        position: static;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .topbar nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .topbar a { margin-right: 0; }
    table { font-size: 12px; }
    .shift-grid { grid-template-columns: 1fr; }
    .sync-form { grid-template-columns: 1fr; }
    .sync-form label,
    .sync-form input { grid-column: auto; }
    .report-filter-form,
    .report-grid,
    .plan-grid { grid-template-columns: 1fr; }
}