:root {
    --bg: #f5f6f8;
    --panel: #ffffff;
    --border: #d6d9de;
    --text: #1f2933;
    --muted: #5f6b76;
    --soft: #eef1f4;
    --btn: #f3f4f6;
    --btn-hover: #e5e7eb;
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
}

h1, h2, h3, p { margin: 0; }

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    padding: 20px 24px 14px;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
    position: sticky;
    top: 0;
    z-index: 20;
}

.eyebrow {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    margin-bottom: 6px;
}

.subtitle,
.hero-copy,
.card-copy {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.45;
}

.layout {
    display: grid;
    gap: 18px;
    padding: 18px 24px 28px;
}

.item {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.hero {
    padding: 16px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 18px;
}

.card {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.card-top {
    display: flex;
    justify-content: space-between;
    gap: 14px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-bottom: 10px;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--soft);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}

.tag-row,
.button-row,
.header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    border: 1px solid var(--border);
    background: var(--btn);
    color: var(--text);
    text-decoration: none;
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
    background: var(--btn-hover);
    border-color: #bcc3cb;
}

.mini {
    padding: 10px 12px;
    border-radius: 10px;
    background: #fafbfc;
}

.mono {
    font-family: "Courier New", Courier, monospace;
    font-size: 12px;
    word-break: break-word;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.compact {
    gap: 8px;
}

.placeholder-card {
    border-style: dashed;
    background: #fafbfc;
}

@media (max-width: 720px) {
    .topbar,
    .card-top {
        flex-direction: column;
        align-items: stretch;
    }

    .layout {
        padding-left: 14px;
        padding-right: 14px;
    }
}