/* CBS Books -- Chapin Business Services Bookkeeping */

:root {
    --color-primary: #1490C2;
    --color-primary-dark: #0F6E96;
    --color-primary-light: #1BA5D8;
    --color-sidebar-bg: #0F6E96;
    --color-sidebar-active: #1490C2;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    --color-bg: #f3f4f6;
    --color-white: #ffffff;
    --color-income: #059669;
    --color-expense: #dc2626;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --sidebar-width: 240px;
    --header-height: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
}

/* Layout */
.layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-sidebar-bg);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}
.sidebar-header {
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}
.sidebar-logo {
    width: 160px;
    height: auto;
    display: block;
    margin: 0 auto;
}
.sidebar-subtitle {
    display: block;
    font-size: 1.125rem;
    opacity: 0.85;
    margin-top: 0.375rem;
    font-weight: 500;
    text-align: center;
}
.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: background 0.15s, color 0.15s;
}
.nav-item:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}
.nav-item.active {
    background: var(--color-sidebar-active);
    color: white;
    font-weight: 500;
}
.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.sidebar-user {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}
.btn-logout {
    background: none;
    border: 1px solid rgba(255,255,255,0.3);
    color: rgba(255,255,255,0.7);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8125rem;
    transition: all 0.15s;
}
.btn-logout:hover {
    border-color: rgba(255,255,255,0.6);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}
.page-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}
.page-title {
    font-size: 1.375rem;
    font-weight: 600;
}
.page-body {
    padding: 1.5rem 2rem;
}

/* Cards */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}
.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* Stat Cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.25rem;
}
.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.25rem;
}
.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
}
.stat-value.income { color: var(--color-income); }
.stat-value.expense { color: var(--color-expense); }

/* Charts */
.chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}
.chart-grid canvas { max-height: 300px; }

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.625rem 0.75rem;
    border-bottom: 2px solid var(--color-border);
}
.data-table td {
    padding: 0.625rem 0.75rem;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.875rem;
}
.data-table tbody tr:hover { background: #f9fafb; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.nowrap { white-space: nowrap; }
.income { color: var(--color-income); }
.expense { color: var(--color-expense); }
.text-muted { color: var(--color-text-muted); font-size: 0.875rem; }

/* Table Summary */
.table-summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    background: var(--color-bg);
    border-radius: 6px;
    border: 1px solid var(--color-border-light);
}
.summary-sep { color: var(--color-border); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
}
.btn-primary {
    background: var(--color-primary);
    color: white;
}
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary {
    background: var(--color-white);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover { background: var(--color-bg); }
.btn-ghost {
    background: none;
    color: var(--color-text-light);
    border: none;
}
.btn-ghost:hover { color: var(--color-text); }
.btn-full { width: 100%; justify-content: center; }
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 4px;
    color: var(--color-text-light);
    transition: all 0.15s;
}
.btn-icon:hover { background: var(--color-bg); color: var(--color-text); }
.btn-icon.danger:hover { background: #fef2f2; color: var(--color-expense); }

/* Forms */
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.375rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    height: 38px;
    padding: 0 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color 0.15s;
}
.form-group textarea {
    height: auto;
    padding: 0.5rem 0.75rem;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(20, 144, 194, 0.1);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-inline {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.form-inline .form-group { margin-bottom: 0; }
.form-inline .btn { height: 38px; }
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-light);
}

/* Filters */
.filter-bar { margin-bottom: 1rem; }
.filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
    align-items: end;
}
.filter-form .form-group { margin-bottom: 0; }
.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.filter-group label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.filter-group input,
.filter-group select {
    height: 38px;
    padding: 0 0.625rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.8125rem;
    color: var(--color-text);
    background: var(--color-white);
    font-family: inherit;
}
.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(20, 144, 194, 0.1);
}
.filter-actions {
    display: flex;
    gap: 0.5rem;
    align-items: end;
}
.filter-actions .btn {
    height: 38px;
    padding: 0 0.875rem;
}

/* Autocomplete Dropdown */
.autocomplete-wrap {
    position: relative;
}
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 6px 6px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 50;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.autocomplete-item {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text);
}
.autocomplete-item:hover {
    background: var(--color-bg);
}
.filter-inline {
    display: flex;
    align-items: end;
    gap: 0.75rem;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}
.modal-content {
    background: var(--color-white);
    border-radius: 12px;
    padding: 1.5rem;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}
.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}
.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-light);
    line-height: 1;
}
.modal-close:hover { color: var(--color-text); }

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
}
.page-info {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}
.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}
.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}
.badge-income { background: #ecfdf5; color: var(--color-income); }
.badge-expense { background: #fef2f2; color: var(--color-expense); }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-light);
}
.empty-state a { color: var(--color-primary); }

/* Note indicator */
.note-indicator {
    color: var(--color-primary);
    font-weight: bold;
    margin-left: 0.25rem;
    cursor: help;
}

/* Reports */
.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}
.report-card {
    display: block;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    text-decoration: none;
    color: var(--color-text);
    transition: all 0.15s;
}
.report-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(20, 144, 194, 0.1);
}
.report-icon {
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}
.report-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.report-card p {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}
.report-content { margin-top: 1rem; }
.report-header-block {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-primary-dark);
}
.report-header-block h2 {
    font-size: 1.25rem;
    color: var(--color-primary-dark);
}
.report-header-block h3 {
    font-size: 1rem;
    font-weight: normal;
    color: var(--color-text);
}
.report-date-range {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}
.report-section-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin: 1.5rem 0 0.5rem;
    padding-bottom: 0.375rem;
    border-bottom: 1px solid var(--color-border);
}
.report-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0.5rem;
}
.report-table td {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--color-border-light);
}
.report-subtotal td {
    border-top: 1px solid var(--color-border);
    padding-top: 0.625rem;
}
.report-total td {
    border-top: 2px solid var(--color-primary-dark);
    font-size: 1rem;
    padding-top: 0.75rem;
}

/* Settings */
.settings-nav {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
}
.settings-tab {
    padding: 0.625rem 1.25rem;
    text-decoration: none;
    color: var(--color-text-light);
    font-size: 0.9375rem;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s;
}
.settings-tab:hover { color: var(--color-text); }
.settings-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Import */
.import-form { max-width: 400px; }
.import-result { text-align: center; padding: 1rem; }
.import-result-icon { margin-bottom: 1rem; }
.mapping-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.mapping-item label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}
.mapping-item select {
    width: 100%;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.8125rem;
}
.table-scroll { overflow-x: auto; }

/* Login */
.login-body {
    background: var(--color-sidebar-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}
.login-card {
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
}
.login-header {
    background: var(--color-primary-dark);
    padding: 2rem;
    text-align: center;
}
.login-logo {
    width: 180px;
    height: auto;
    margin: 0 auto 0.5rem;
    display: block;
}
.login-title {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.login-form { padding: 1.5rem 2rem 2rem; }

/* Toast Notifications */
.toast {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    animation: slideIn 0.3s ease;
}
.toast-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.toast-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}
.toast-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.5;
    color: inherit;
    line-height: 1;
}
.toast-close:hover { opacity: 1; }
@keyframes slideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Activity Log */
.log-action { font-weight: 500; }
.log-action.create { color: var(--color-income); }
.log-action.update { color: var(--color-primary); }
.log-action.delete { color: var(--color-expense); }
.log-details {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Changelog */
.changelog-entry {
    margin-bottom: 0.5rem;
}
.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.changelog-version {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    margin-right: 0.5rem;
}
.changelog-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}
.changelog-date {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}
.changelog-list {
    margin: 0;
    padding-left: 1.25rem;
}
.changelog-list li {
    font-size: 0.875rem;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 0.25rem;
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
}
.mobile-menu-btn:hover { background: var(--color-bg); }
.mobile-menu-btn svg { display: block; }
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.open { display: block; }
    .main-content { margin-left: 0; }
    .page-header { padding: 0 1rem; gap: 0.5rem; }
    .page-title { font-size: 1.125rem; }
    .page-body { padding: 1rem; }
    .chart-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .filter-form { grid-template-columns: 1fr 1fr; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .data-table { font-size: 0.8125rem; }
    .data-table th, .data-table td { padding: 0.5rem; }
    .modal-content { margin: 1rem; max-width: calc(100vw - 2rem); }
    .btn { padding: 0.625rem 1rem; }
    .report-grid { grid-template-columns: 1fr; }
    .changelog-header { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
    .filter-form { grid-template-columns: 1fr; }
    .form-inline { flex-direction: column; align-items: stretch; }
    .form-inline .btn { width: 100%; justify-content: center; }
}