/* Global foF2 / ionosonde dashboard — sky domain accents */

.fof2-wrap {
    max-width: 1280px;
    margin: 0 auto;
}

.fof2-hero {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.fof2-hero h1 {
    font-size: 1.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.fof2-hero p {
    color: var(--muted);
    font-size: 0.92rem;
    max-width: 720px;
}

.fof2-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: linear-gradient(180deg, var(--surface) 0%, var(--surface-alt) 100%);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 14px 16px;
}

.stat-card .label {
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.stat-card .value {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text);
}

.stat-card .hint {
    margin-top: 4px;
    font-size: 0.78rem;
    color: var(--muted);
}

.control-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 14px;
}

.control-bar .control-label {
    font-size: 0.84rem;
    color: var(--muted);
    font-weight: 600;
}

.control-bar select,
.control-bar button {
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    font-size: 0.84rem;
}

.control-bar button {
    background: var(--brand-soft);
    color: var(--brand);
    font-weight: 600;
    cursor: pointer;
}

.control-bar button:hover { filter: brightness(0.97); }

.param-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.param-chip {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--chip-border);
    background: var(--surface);
    color: var(--chip-text);
    font-size: 0.8rem;
    cursor: pointer;
}

.param-chip.active {
    background: var(--brand-soft);
    border-color: var(--brand);
    color: var(--brand);
    font-weight: 600;
}

.chart-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 10px;
    margin-bottom: 18px;
}

.chart-box {
    width: 100%;
    height: 520px;
}

.chart-box-mid {
    width: 100%;
    height: 320px;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.knowledge-card {
    border: 1px solid var(--line);
    border-left: 4px solid var(--brand);
    border-radius: 10px;
    padding: 14px 16px;
    background: var(--surface-alt);
}

.knowledge-card h3 {
    font-size: 0.95rem;
    color: var(--text);
    margin-bottom: 6px;
}

.knowledge-card p {
    font-size: 0.84rem;
    color: var(--muted);
    line-height: 1.55;
}

.timeline-slider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 8px 4px 4px;
}

.timeline-slider input[type="range"] {
    flex: 1;
    accent-color: var(--brand);
}

.timeline-slider .t-label {
    min-width: 64px;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text);
}

@media (max-width: 900px) {
    .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .chart-box { height: 380px; }
    .fof2-meta { align-items: flex-start; }
}

@media (max-width: 560px) {
    .stat-grid { grid-template-columns: 1fr; }
}