body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: #0f172a;
    color: #f8fafc;
    margin: 0;
    padding: 20px;
    min-height: 100vh;
}

.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    color: #38bdf8;
    margin: 0 0 5px 0;
    font-size: 2.2rem;
}

.subtitle {
    color: #94a3b8;
    margin: 0;
}

/* Control Station Panel layout */
.control-panel {
    background-color: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    justify-content: space-between;
}

#fetch-btn {
    background-color: #38bdf8;
    color: #0f172a;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
}

#fetch-btn:hover {
    background-color: #7dd3fc;
}

.filter-group {
    display: flex;
    gap: 10px;
    flex-grow: 1;
    max-width: 600px;
}

.filter-group input, .filter-group select {
    background-color: #0f172a;
    border: 1px solid #334155;
    color: #f8fafc;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.95rem;
}

.filter-group input {
    flex-grow: 2;
}

.filter-group select {
    flex-grow: 1;
}

.toggle-group {
    display: flex;
    background-color: #0f172a;
    padding: 4px;
    border-radius: 8px;
    border: 1px solid #334155;
}

.view-toggle {
    background: none;
    border: none;
    color: #94a3b8;
    padding: 8px 16px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-toggle.active {
    background-color: #38bdf8;
    color: #0f172a;
}

/* Structural Views Layout */
.news-flex {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.news-card {
    background-color: #1e293b;
    border: 1px solid #334155;
    border-radius: 10px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.news-card h3 {
    margin: 0 0 10px 0;
    font-size: 1.15rem;
    line-height: 1.4;
    color: #f1f5f9;
}

.source-badge {
    align-self: flex-start;
    background-color: rgba(56, 189, 248, 0.1);
    color: #38bdf8;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.news-card p {
    color: #cbd5e1;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0 0 15px 0;
}

.news-card a {
    color: #38bdf8;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
}

.news-card a:hover {
    text-decoration: underline;
}

.chart-container {
    background-color: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 25px;
    max-width: 800px;
    margin: 0 auto;
}

.status-card {
    background-color: #1e293b;
    border: 1px dashed #334155;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    color: #94a3b8;
    font-style: italic;
}

.hidden {
    display: none !important;
}

/* Responsive Fluid Breakpoints */
@media (max-width: 768px) {
    .control-panel {
        flex-direction: column;
        align-items: stretch;
    }
    .filter-group {
        flex-direction: column;
        max-width: 100%;
    }
    .toggle-group {
        justify-content: center;
    }
}