:root {
    color-scheme: light;
    font-family: Arial, Helvetica, sans-serif;
    --ink: #1c2430;
    --muted: #687386;
    --line: #dce2ea;
    --surface: #ffffff;
    --page: #f5f7f9;
    --accent: #0f766e;
    --accent-dark: #115e59;
    --danger: #b42318;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background: var(--page);
}

button,
.button,
select {
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface);
    color: var(--ink);
    font: inherit;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    border-color: var(--accent);
    background: var(--accent);
    color: #ffffff;
    text-decoration: none;
    cursor: pointer;
}

button:hover,
.button:hover {
    background: var(--accent-dark);
}

button:disabled {
    cursor: wait;
    opacity: 0.7;
}

select {
    padding: 0 10px;
}

.auth-page {
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-panel {
    width: min(420px, 100%);
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.auth-panel h1 {
    margin: 0 0 10px;
}

.auth-panel p {
    color: var(--muted);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
}

.topbar div {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    align-items: baseline;
}

.topbar span {
    color: var(--muted);
    font-size: 14px;
}

.shell {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.stats-grid article,
.panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

.stats-grid article {
    padding: 18px;
}

.stats-grid span {
    display: block;
    margin-bottom: 10px;
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
}

.stats-grid strong {
    font-size: 32px;
}

.workspace {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 18px;
    margin-top: 18px;
}

.panel {
    padding: 18px;
}

.panel h2 {
    margin: 0 0 16px;
    font-size: 18px;
}

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

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

.status-list div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
}

.tasks {
    display: grid;
    gap: 12px;
}

.task {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.task h3 {
    margin: 0 0 6px;
    font-size: 16px;
}

.task p,
.empty {
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
}

.task-controls {
    display: flex;
    gap: 8px;
}

@media (max-width: 780px) {
    .stats-grid,
    .workspace,
    .task {
        grid-template-columns: 1fr;
    }

    .topbar,
    .panel-heading,
    .task-controls {
        align-items: stretch;
        flex-direction: column;
    }
}