:root {
    color-scheme: light;
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-alt: #f9fafb;
    --text: #16202a;
    --muted: #5f6b76;
    --line: #d9e0e6;
    --primary: #0a6cff;
    --primary-strong: #065ad6;
    --success: #1f8a4c;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.45;
}

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

.container {
    width: min(1120px, 94%);
    margin: 0 auto;
}

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
}

.brand {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0;
}

.nav {
    display: flex;
    gap: 22px;
    color: var(--muted);
    font-size: 0.95rem;
}

.actions {
    display: flex;
    gap: 10px;
}

.btn {
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    padding: 9px 14px;
    border-radius: 6px;
    font-size: 0.92rem;
    cursor: pointer;
}

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

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

.hero {
    padding: 34px 0 18px;
}

h1 {
    margin: 0;
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    line-height: 1.2;
}

.hero p {
    margin: 12px 0 0;
    max-width: 780px;
    color: var(--muted);
    font-size: 1rem;
}

.metrics {
    padding: 18px 0 28px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.metric {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
    min-height: 98px;
}

.metric-label {
    font-size: 0.84rem;
    color: var(--muted);
    margin-bottom: 10px;
}

.metric-value {
    font-size: 1.35rem;
    font-weight: 650;
}

.metric-note {
    margin-top: 4px;
    font-size: 0.82rem;
    color: var(--success);
}

.workspace {
    padding: 8px 0 38px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 14px;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
}

.panel-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 650;
}

.panel-body {
    padding: 8px 0;
}

.item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 14px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    align-items: center;
}

.item:last-child {
    border-bottom: none;
}

.item-name {
    font-size: 0.94rem;
}

.item-meta {
    color: var(--muted);
    font-size: 0.84rem;
}

.status {
    font-size: 0.82rem;
    color: var(--primary);
    border: 1px solid #b8d2ff;
    background: #edf4ff;
    padding: 4px 8px;
    border-radius: 6px;
    white-space: nowrap;
}

.side-stack {
    display: grid;
    gap: 14px;
}

.quick-actions {
    display: grid;
    gap: 8px;
    padding: 14px 16px 16px;
    background: var(--surface-alt);
}

.quick-actions .btn {
    text-align: left;
    background: #fff;
}

.support {
    padding: 14px 16px 16px;
    color: var(--muted);
    font-size: 0.92rem;
}

.support strong {
    color: var(--text);
}

.footer {
    border-top: 1px solid var(--line);
    background: var(--surface);
    color: var(--muted);
    font-size: 0.84rem;
}

.footer .container {
    padding: 12px 0;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

@media (max-width: 980px) {
    .metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .workspace {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .topbar-inner {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .actions {
        margin-left: auto;
    }

    .metrics {
        grid-template-columns: 1fr;
    }

    .item {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .status {
        width: fit-content;
    }
}