:root {
    color-scheme: dark;

    --color-bg: #121212;
    --color-surface: #1a1a1a;
    --color-surface-raised: #252525;
    --color-border: #333333;
    --color-border-subtle: #2a2a2a;
    --color-text: #e8e8e8;
    --color-text-muted: #999999;
    --color-hover: #2a2a2a;
    --color-link-active-bg: #1e293b;
    --color-success: #86efac;
    --color-error: #f87171;
    --color-overlay: rgba(0, 0, 0, 0.55);
    --color-shadow-sidebar: 2px 0 8px rgba(0, 0, 0, 0.35);
    --color-input-border: #444444;
    --color-button-border: #444444;
    --color-focus-ring: #60a5fa;
}

[data-theme="light"] {
    color-scheme: light;

    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --color-surface-raised: #ffffff;
    --color-border: #e5e5e5;
    --color-border-subtle: #f0f0f0;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
    --color-hover: #f5f5f5;
    --color-link-active-bg: #eef2ff;
    --color-success: #166534;
    --color-error: #b91c1c;
    --color-overlay: rgba(0, 0, 0, 0.35);
    --color-shadow-sidebar: 2px 0 8px rgba(0, 0, 0, 0.08);
    --color-input-border: #e5e5e5;
    --color-button-border: #cccccc;
    --color-focus-ring: #2563eb;
}

body {
    font-family: system-ui, sans-serif;
    line-height: 1.5;
    margin: 0;
    color: var(--color-text);
    background: var(--color-bg);
}

.layout-app .app-shell {
    display: grid;
    grid-template-columns: 0 1fr;
    grid-template-rows: auto 1fr;
    grid-template-areas:
        "topbar topbar"
        "sidebar main";
    min-height: 100vh;
}

.layout-app.sidebar-open .app-shell {
    grid-template-columns: 15rem 1fr;
}

.layout-app.sidebar-collapsed .app-shell {
    grid-template-columns: 0 1fr;
}

.app-topbar {
    grid-area: topbar;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 30;
}

.app-topbar-title {
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.nav-toggle,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem;
    background: var(--color-surface);
    border: 1px solid var(--color-button-border);
    border-radius: 4px;
    cursor: pointer;
    color: var(--color-text);
}

/* Dark: sun = switch to light; light: moon = switch to dark */
.theme-toggle .theme-icon--moon {
    display: none;
}

html[data-theme="light"] .theme-toggle .theme-icon--sun {
    display: none;
}

html[data-theme="light"] .theme-toggle .theme-icon--moon {
    display: block;
}

.nav-toggle:focus-visible,
.theme-toggle:focus-visible,
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-focus-ring);
    outline-offset: 2px;
}

.site-sidebar {
    grid-area: sidebar;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 1rem 0;
    overflow-y: auto;
    position: sticky;
    top: 3rem;
    align-self: start;
    max-height: calc(100vh - 3rem);
    z-index: 20;
}

.layout-app.sidebar-collapsed .site-sidebar {
    transform: translateX(-100%);
    visibility: hidden;
}

.layout-app.sidebar-open .site-sidebar {
    transform: translateX(0);
    visibility: visible;
}

.sidebar-brand {
    padding: 0 1rem 1rem;
    font-size: 0.95rem;
}

.nav-group {
    border-bottom: 1px solid var(--color-border-subtle);
}

.nav-group-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
}

.nav-group-title::-webkit-details-marker {
    display: none;
}

.nav-group ul {
    list-style: none;
    margin: 0;
    padding: 0 0 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem 0.45rem 1.75rem;
    color: inherit;
    text-decoration: none;
    font-size: 0.95rem;
}

.nav-link:hover {
    background: var(--color-hover);
}

.nav-link.is-active {
    background: var(--color-link-active-bg);
    font-weight: 600;
}

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

.nav-overlay {
    display: none;
}

.layout-app .site-main {
    grid-area: main;
    max-width: none;
    margin: 0;
    padding: 1.5rem;
    min-width: 0;
}

/* Page title is shown in the top bar */
.layout-app .site-main h1 {
    display: none;
}

.layout-public {
    min-height: 100vh;
}

.public-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.public-header__signin {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--color-button-border);
    border-radius: 4px;
    text-decoration: none;
    color: inherit;
}

a.button-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-button-border);
    border-radius: 4px;
    text-decoration: none;
    color: inherit;
}

.site-main--public {
    max-width: 36rem;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

.site-main--minimal {
    max-width: 24rem;
    margin: 2rem auto;
    padding: 1.5rem;
}

.contacts-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.contacts-section h2 {
    margin: 0 0 0.75rem;
    font-size: 1.1rem;
}

.tax-rate-fieldset {
    border: 1px solid var(--color-border);
    padding: 0.75rem 1rem 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
}

.tax-rate-fieldset legend {
    font-weight: 600;
    padding: 0 0.25rem;
}

@media (max-width: 767px) {
    /* Single full-width column; sidebar/overlay must not occupy grid tracks */
    .layout-app .app-shell,
    .layout-app.sidebar-open .app-shell,
    .layout-app.sidebar-collapsed .app-shell {
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas:
            "topbar"
            "main";
        width: 100%;
    }

    .layout-app .site-main {
        width: 100%;
        max-width: none;
        min-width: 0;
    }

    .layout-app .site-sidebar,
    .layout-app .nav-overlay {
        grid-area: unset;
        grid-column: unset;
        grid-row: unset;
    }

    .site-sidebar {
        position: fixed;
        top: 3rem;
        left: 0;
        bottom: 0;
        width: min(15rem, 85vw);
        max-height: none;
        box-shadow: var(--color-shadow-sidebar);
        z-index: 25;
    }

    .layout-app.sidebar-collapsed .site-sidebar {
        transform: translateX(-100%);
        visibility: hidden;
        pointer-events: none;
    }

    .layout-app.sidebar-open .site-sidebar {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }

    .layout-app.sidebar-open .nav-overlay {
        display: block;
        position: fixed;
        inset: 3rem 0 0 0;
        background: var(--color-overlay);
        z-index: 15;
    }
}

@media (min-width: 768px) {
    .layout-app.sidebar-collapsed .nav-overlay {
        display: none !important;
    }
}

label {
    display: block;
    margin-bottom: 1rem;
}

input[type="email"],
input[type="text"],
input[type="number"],
input[type="datetime-local"],
input[type="month"],
input[type="date"],
select,
textarea {
    display: block;
    width: 100%;
    max-width: 24rem;
    box-sizing: border-box;
    padding: 0.5rem;
    margin-top: 0.25rem;
    color: var(--color-text);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-input-border);
    border-radius: 4px;
}

select,
textarea {
    margin-bottom: 1rem;
}

button {
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: var(--color-text);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-button-border);
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    text-align: left;
    padding: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.inline-form {
    display: inline;
}

.pagination {
    margin: 1rem 0;
}

.pagination a {
    margin-right: 1rem;
    color: var(--color-text);
}

.flash-success {
    color: var(--color-success);
}

.flash-error {
    color: var(--color-error);
}

.timer-elapsed {
    font-size: 2.5rem;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    margin: 0.5rem 0 1rem;
}

.timer-status {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.timer-continue-hint {
    margin: 0 0 1rem;
    padding: 0.6rem 0.75rem;
    font-size: 0.9rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.timer-manual {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.timer-manual summary {
    cursor: pointer;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timer-manual-hint {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin: 0 0 1rem;
}

.timer-manual[open] summary {
    margin-bottom: 0.75rem;
}

.timer-actions button {
    margin-right: 0.5rem;
}

.btn-primary {
    font-weight: 600;
}

.timer-error {
    color: var(--color-error);
}

.combo-results {
    list-style: none;
    margin: 0;
    padding: 0;
    border: 1px solid var(--color-border);
    background: var(--color-surface-raised);
    max-width: 24rem;
    max-height: 12rem;
    overflow-y: auto;
}

.combo-results li {
    padding: 0.4rem 0.5rem;
    cursor: pointer;
}

.combo-results li:hover,
.combo-results li:focus {
    background: var(--color-hover);
}

.combo-results li.combo-hint {
    color: var(--color-text-muted);
    font-style: italic;
    cursor: default;
}

.combo-results li.combo-hint:hover,
.combo-results li.combo-hint:focus {
    background: var(--color-surface-raised);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-label input {
    width: auto;
    margin: 0;
}

.timer-footer {
    margin-top: 2rem;
    color: var(--color-text-muted);
}

.report-filters label {
    display: inline-block;
    margin-right: 1rem;
    vertical-align: top;
}

.report-filters select,
.report-filters input[type="date"],
.report-filters input[type="month"],
.report-filters input[type="number"] {
    display: block;
    max-width: 12rem;
}

.report-summary {
    margin: 1rem 0 1.5rem;
    padding: 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.report-summary__heading {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
}

.report-summary__estimate {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
}

.report-summary__totals {
    margin: 0;
}

.report-task {
    margin: 0.75rem 0 1rem 1rem;
}

.report-task h4 {
    margin: 0.5rem 0;
    font-size: 1rem;
}

.report-date-heading {
    margin: 0.75rem 0 0.25rem 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.report-log-table {
    margin-bottom: 1rem;
}

.report-col-check {
    width: 2.5rem;
}

.report-col-note,
.report-col-hours {
    min-width: 8rem;
}

.report-col-amounts {
    font-size: 0.9rem;
}

.report-amount-line {
    display: block;
}

.report-amount-total {
    font-weight: 600;
}

.copy-btn {
    margin-left: 0.5rem;
    padding: 0.15rem 0.45rem;
    font-size: 0.75rem;
    cursor: pointer;
    border: 1px solid var(--color-button-border);
    border-radius: 3px;
    background: var(--color-surface);
    color: inherit;
}

.copy-btn:disabled {
    opacity: 0.7;
}

.time-log-date-link {
    color: inherit;
    text-decoration: none;
    font-weight: 600;
}

.time-log-date-link:hover {
    text-decoration: underline;
}

.status-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    font-size: 0.8rem;
    border-radius: 3px;
    text-transform: capitalize;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
}

.report-bulk-actions {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.report-bulk-actions__group {
    margin: 0.75rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.report-client h2,
.report-engagement h3 {
    margin-top: 1.5rem;
}

.muted {
    color: var(--color-text-muted);
    font-weight: normal;
    font-size: 0.9em;
}

.status-legend {
    margin: 1.25rem 0 0;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    border: 1px solid var(--color-border-subtle);
    border-radius: 4px;
    background: var(--color-surface-raised);
}

.status-legend__heading {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
}

.status-legend ul {
    margin: 0 0 0.5rem;
    padding-left: 1.25rem;
}

.status-legend li {
    margin-bottom: 0.25rem;
}

.status-legend__note {
    margin: 0;
    font-size: 0.85rem;
}

.budget-panel {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.budget-panel__heading {
    margin: 0 0 0.75rem;
    font-size: 1.1rem;
}

.budget-progress__scope {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
}

.budget-progress__track {
    height: 0.5rem;
    background: var(--color-border-subtle);
    border-radius: 4px;
    overflow: hidden;
}

.budget-progress__fill {
    height: 100%;
    background: var(--color-focus-ring);
    border-radius: 4px;
    min-width: 0;
    transition: width 0.2s ease;
}

.budget-progress__labels {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
}

.sidebar-nav-top {
    list-style: none;
    margin: 0 0 0.75rem;
    padding: 0;
}

.dashboard-stat {
    margin: 0 0 1.5rem;
    padding: 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.dashboard-stat__label {
    margin: 0 0 0.25rem;
    font-size: 1rem;
    font-weight: 600;
}

.dashboard-stat__value {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
}

.dashboard-stat__meta {
    margin: 0.25rem 0 0;
}

.dashboard-section {
    margin-bottom: 1.5rem;
}

.dashboard-section h2 {
    margin: 0 0 0.75rem;
    font-size: 1.1rem;
}

.dashboard-engagement-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.dashboard-engagement-card {
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.dashboard-engagement-card__title {
    margin: 0 0 0.5rem;
}

.dashboard-links__heading {
    margin: 0 0 0.5rem;
    font-size: 1rem;
}

.dashboard-links ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0.5rem 0 1rem;
}

@media (max-width: 767px) {
    .layout-app .site-main,
    .layout-public .site-main {
        padding: 1rem;
    }

    .layout-public .site-main--public {
        max-width: none;
        width: 100%;
    }

    .layout-app label,
    .layout-public label,
    .layout-app .combo-results,
    .layout-public .combo-results,
    .layout-app input,
    .layout-public input,
    .layout-app select,
    .layout-public select,
    .layout-app textarea,
    .layout-public textarea,
    .layout-app .report-filters input,
    .layout-app .report-filters select {
        max-width: 100%;
    }

    .report-filters label {
        display: block;
        width: 100%;
        margin-right: 0;
        margin-bottom: 0.75rem;
    }

    .report-filters select,
    .report-filters input[type="date"],
    .report-filters input[type="month"],
    .report-filters input[type="number"] {
        max-width: 100%;
    }

    .dashboard-links ul {
        flex-direction: column;
        gap: 0.35rem;
    }
}

.report-actions {
    margin: 0.5rem 0 1.5rem;
}

.report-actions .button-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-button-border);
    border-radius: 4px;
    text-decoration: none;
    color: inherit;
}

.report-client {
    margin-bottom: 2rem;
}

.report-engagement {
    margin-left: 0.5rem;
    margin-bottom: 1rem;
}

.open-entries {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.entry-context {
    margin-bottom: 1rem;
}

@media (max-width: 640px) {
    .data-table thead {
        display: none;
    }

    .data-table tbody tr {
        display: block;
        margin-bottom: 1rem;
        border: 1px solid var(--color-border);
        background: var(--color-surface-raised);
        border-radius: 4px;
    }

    .data-table td {
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        align-items: flex-start;
        border-bottom: 1px solid var(--color-border-subtle);
        padding: 0.5rem 0.75rem;
    }

    .data-table td:last-child {
        border-bottom: none;
    }

    .data-table td::before {
        content: attr(data-label);
        font-weight: 600;
        flex-shrink: 0;
    }

    .data-table td[data-label=""]::before {
        content: none;
    }

    .open-entries .data-table td:has(input[type="checkbox"]) {
        flex-wrap: wrap;
    }

    .open-entries .data-table td:has(input[type="checkbox"])::before {
        width: 100%;
    }

    .data-table--responsive td[data-priority="optional"],
    .data-table--responsive th[data-priority="optional"] {
        display: none;
    }

    .data-table--responsive.report-log-table .report-amount-detail {
        display: none;
    }

    .data-table--responsive.report-log-table .report-copy-actions {
        display: none;
    }

    .data-table--responsive.report-log-table .report-note-text {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .data-table--responsive tbody tr {
        padding: 0;
    }

    .data-table--responsive td[data-priority="primary"],
    .data-table--responsive td[data-priority="secondary"] {
        border-bottom: none;
    }

    .data-table--responsive td[data-priority="primary"]::before,
    .data-table--responsive td[data-priority="secondary"]::before {
        content: none;
    }

    .data-table--responsive td[data-priority="primary"]:not(.data-table__actions) {
        padding-top: 0.35rem;
        padding-bottom: 0.15rem;
    }

    .data-table--responsive td[data-priority="secondary"] {
        padding-top: 0;
        padding-bottom: 0.35rem;
        font-size: 0.9rem;
    }

    .data-table--responsive td.data-table__actions {
        padding-top: 0.25rem;
        border-bottom: 1px solid var(--color-border-subtle);
    }

    .data-table--responsive td.data-table__actions::before {
        content: none;
    }
}