:root {
    --bg: #f3f4f6;
    --surface: #ffffff;
    --surface-muted: #f8fafc;
    --border: #d9dde3;
    --text: #111827;
    --muted: #6b7280;
    --primary: #1f5f46;
    --primary-strong: #174734;
    --danger: #b42318;
    --warning: #b54708;
    --info: #175cd3;
    --success: #027a48;
    --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: Inter, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
}

body {
    min-height: 100vh;
}

button,
input,
select,
textarea {
    font: inherit;
}

a {
    color: inherit;
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card,
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.login-card {
    width: min(100%, 420px);
    padding: 32px;
}

.login-card h1,
.topbar h1,
.toolbar h2,
.card h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.login-card p,
.muted,
.eyebrow {
    color: var(--muted);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.75rem;
    margin-bottom: 8px;
}

.login-error {
    display: none;
    margin: 12px 0;
    color: var(--danger);
    font-size: 0.92rem;
}

.login-links {
    margin-top: 18px;
    font-size: 0.9rem;
}

.shell {
    max-width: 1480px;
    margin: 0 auto;
    padding: 20px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 16px;
    margin-bottom: 20px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-pills {
    display: flex;
    gap: 8px;
}

.nav-pills button {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 10px 14px;
    color: var(--muted);
    cursor: pointer;
}

.nav-pills button.active {
    color: var(--primary);
    border-color: var(--primary);
    background: #eef6f2;
}

.page,
.stack {
    display: grid;
    gap: 16px;
}

.toolbar,
.card-header,
.modal-header,
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.toolbar-actions,
.modal-footer-right {
    display: flex;
    gap: 8px;
    align-items: center;
}

.card-header,
.card-body,
.modal-header,
.modal-body,
.modal-footer {
    padding: 16px 18px;
}

.card-header {
    border-bottom: 1px solid var(--border);
}

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

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 14px 16px;
    box-shadow: var(--shadow);
}

.stat-card strong {
    display: block;
    margin-top: 6px;
    font-size: 1.6rem;
    font-weight: 600;
}

.stat-label {
    color: var(--muted);
    font-size: 0.85rem;
}

.planner-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
    gap: 16px;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

th {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
}

tbody tr:hover {
    background: var(--surface-muted);
}

.empty-cell {
    text-align: center;
    color: var(--muted);
    padding: 24px;
}

.agenda-list {
    display: grid;
    gap: 10px;
}

.agenda-item {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 14px;
    border: 1px solid var(--border);
    background: var(--surface-muted);
}

.agenda-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: end;
    gap: 8px;
    color: var(--muted);
    font-size: 0.92rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border: 1px solid transparent;
    font-size: 0.78rem;
    white-space: nowrap;
}

.badge-blue {
    background: #eef4ff;
    border-color: #cfe0ff;
    color: var(--info);
}

.badge-green {
    background: #ecfdf3;
    border-color: #c7eed8;
    color: var(--success);
}

.badge-yellow {
    background: #fff7ed;
    border-color: #f7ddbe;
    color: var(--warning);
}

.badge-red {
    background: #fef3f2;
    border-color: #f3c7c4;
    color: var(--danger);
}

.badge-gray {
    background: #f3f4f6;
    border-color: #d1d5db;
    color: var(--muted);
}

.btn,
.table-action,
.modal-close {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

.btn {
    padding: 10px 14px;
}

.btn-small,
.table-action {
    padding: 6px 10px;
    font-size: 0.88rem;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-strong);
}

.btn-secondary:hover,
.table-action:hover,
.modal-close:hover,
.nav-pills button:hover {
    background: var(--surface-muted);
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.detail-link {
    padding: 0;
    border: 0;
    border-bottom: 1px dotted var(--muted);
    background: transparent;
    color: inherit;
    cursor: help;
    font: inherit;
    text-align: left;
}

.hover-tooltip {
    position: fixed;
    z-index: 1000;
    max-width: 320px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    background: var(--text);
    color: white;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
    font-size: 0.84rem;
    line-height: 1.45;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.12s ease, transform 0.12s ease;
}

.hover-tooltip.visible {
    opacity: 1;
    transform: translateY(0);
}

.table-action.danger {
    color: var(--danger);
}

.btn-block {
    width: 100%;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.form-group {
    display: grid;
    gap: 6px;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.88rem;
    color: var(--muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: white;
    padding: 10px 12px;
    color: var(--text);
}

.form-group textarea {
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: 2px solid #dbeee6;
    border-color: var(--primary);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.42);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.open {
    display: flex;
}

.modal {
    width: min(100%, 760px);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: 0 16px 40px rgba(17, 24, 39, 0.18);
}

.modal-close {
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 8px;
}

.cal-header {
    padding: 8px 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--muted);
}

.cal-day {
    min-height: 100px;
    padding: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
}

.cal-day:hover {
    background: var(--surface-muted);
}

.cal-day.today {
    border-color: var(--primary);
}

.cal-day.has-booking {
    background: #eef6f2;
}

.day-num {
    margin-bottom: 8px;
    font-weight: 600;
}

.day-event {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.78rem;
    color: var(--primary);
}

@media (max-width: 1080px) {
    .stats-grid,
    .planner-grid,
    .resource-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .topbar,
    .toolbar,
    .card-header,
    .modal-header,
    .modal-footer {
        align-items: start;
        flex-direction: column;
    }

    .topbar-actions,
    .toolbar-actions {
        width: 100%;
        flex-wrap: wrap;
    }
}

@media (max-width: 720px) {
    .shell {
        padding: 12px;
    }

    .nav-pills {
        width: 100%;
    }

    .nav-pills button,
    .btn {
        width: 100%;
    }
}