:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-border: #e5e7eb;
    --color-text: #111827;
    --color-muted: #6b7280;
    --color-primary: #111827;
    --color-primary-text: #ffffff;
    --color-success-bg: #dcfce7;
    --color-success-text: #16a34a;
    --color-warning-bg: #ffedd5;
    --color-warning-text: #c2410c;
    --color-neutral-bg: #f3f4f6;
    --color-neutral-text: #4b5563;
    --radius: 10px;
}

* {
    box-sizing: border-box;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.app-shell {
    display: flex;
    height: 100vh;
    position: relative;
}

.app-sidebar {
    width: 260px;
    flex-shrink: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    overflow-y: auto;
    transition: width 0.15s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-weight: 700;
    font-size: 18px;
    padding: 0 20px 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 12px;
}

.sidebar-brand-text {
    overflow: hidden;
    white-space: nowrap;
}

.sidebar-toggle {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-surface);
    color: var(--color-muted);
    cursor: pointer;
}

.sidebar-toggle:hover {
    background: var(--color-neutral-bg);
}

.sidebar-toggle svg {
    transition: transform 0.15s ease;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 12px;
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 12px 0;
    margin-top: 24px;
    border-top: 1px solid var(--color-border);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--color-muted);
    font-size: 14px;
}

.sidebar-link:hover {
    background: var(--color-neutral-bg);
}

.sidebar-link.is-active {
    background: var(--color-primary);
    color: var(--color-primary-text);
}

.sidebar-icon {
    flex-shrink: 0;
}

.sidebar-label {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.app-sidebar.is-collapsed {
    width: 72px;
}

.app-sidebar.is-collapsed .sidebar-brand {
    padding: 0 12px 16px;
    justify-content: center;
}

.app-sidebar.is-collapsed .sidebar-brand-text,
.app-sidebar.is-collapsed .sidebar-label {
    display: none;
}

.app-sidebar.is-collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

.app-sidebar.is-collapsed .sidebar-link {
    justify-content: center;
}

.app-sidebar.is-collapsed:hover:not(.no-hover-expand) {
    position: absolute;
    top: 0;
    left: 0;
    width: 260px;
    height: 100%;
    z-index: 40;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.14);
}

.app-sidebar.is-collapsed:hover:not(.no-hover-expand) .sidebar-brand {
    justify-content: space-between;
    padding: 0 20px 16px;
}

.app-sidebar.is-collapsed:hover:not(.no-hover-expand) .sidebar-brand-text,
.app-sidebar.is-collapsed:hover:not(.no-hover-expand) .sidebar-label {
    display: block;
}

.app-sidebar.is-collapsed:hover:not(.no-hover-expand) .sidebar-toggle svg {
    transform: none;
}

.app-sidebar.is-collapsed:hover:not(.no-hover-expand) .sidebar-link {
    justify-content: flex-start;
}

.app-main {
    flex: 1;
    height: 100vh;
    padding: 28px 32px;
    max-width: 100%;
    overflow-y: auto;
    overflow-x: auto;
}

.scroll-top-btn {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: var(--color-primary);
    color: var(--color-primary-text);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
    z-index: 30;
}

.scroll-top-btn.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    opacity: 0.85;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.page-header h1 {
    font-size: 22px;
    margin: 0;
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.month-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 6px 10px;
    font-weight: 600;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

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

.btn-sm {
    padding: 6px 10px;
    font-size: 13px;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px;
}

.stat-card-label {
    color: var(--color-muted);
    font-size: 13px;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 22px;
    font-weight: 700;
}

.tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 20px;
}

.tab {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-muted);
}

.tab.is-active {
    background: var(--color-primary);
    color: var(--color-primary-text);
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 20px;
}

.panel h2 {
    font-size: 16px;
    margin: 0 0 14px;
}

.panel h3 {
    font-size: 15px;
    margin: 24px 0 10px;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    vertical-align: middle;
    white-space: nowrap;
}

th:last-child, td:last-child {
    border-right: none;
}

td.wrap, th.wrap {
    white-space: normal;
}

th {
    background: var(--color-neutral-bg);
    color: var(--color-text);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-align: center;
    vertical-align: middle;
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

.text-strong {
    font-weight: 700;
}

.link {
    color: #2563eb;
    text-decoration: underline;
}

.hint {
    color: var(--color-muted);
    font-size: 13px;
    margin-top: 10px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.badge-neutral {
    background: var(--color-neutral-bg);
    color: var(--color-neutral-text);
}

.sub-note {
    display: block;
    color: var(--color-muted);
    font-size: 12px;
    margin-top: 2px;
}

.empty-state {
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    color: var(--color-muted);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}

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

.form-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--color-surface);
    color: var(--color-text);
}

.toggle-group {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    width: fit-content;
}

.toggle-group button {
    padding: 10px 16px;
    border: none;
    background: var(--color-surface);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text);
}

.toggle-group button.is-active {
    background: var(--color-primary);
    color: var(--color-primary-text);
}

.info-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    background: var(--color-neutral-bg);
    border-radius: 8px;
    padding: 14px;
    margin: 14px 0;
}

.info-row-item .label {
    color: var(--color-muted);
    font-size: 12px;
}

.info-row-item .value {
    font-weight: 700;
    font-size: 16px;
}

.jobs-day-table col.col-party { width: 220px; }
.jobs-day-table col.col-notes { width: 160px; }
.jobs-day-table col.col-menu { width: 320px; }
.jobs-day-table col.col-remark { width: 160px; }

.detail-title {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.detail-title h1 {
    font-size: 20px;
    margin: 0;
}

.field-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 24px;
}

.field-list .field .label {
    color: var(--color-muted);
    font-size: 12px;
    margin-bottom: 4px;
}

.field-list .field .value {
    font-size: 15px;
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    width: 100%;
    max-width: 360px;
}

.login-card h1 {
    font-size: 20px;
    margin: 0 0 20px;
}

.form-error {
    background: var(--color-warning-bg);
    color: var(--color-warning-text);
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 14px;
}

@media (max-width: 860px) {
    .app-sidebar {
        display: none;
    }

    .form-grid,
    .field-list,
    .info-row {
        grid-template-columns: 1fr;
    }
}