/* --- Global Styles --- */
body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #fff5f5 0%, #ffe4e6 50%, #fbcfe8 100%);
    min-height: 100vh;
}

.app-container {
    padding: 40px 20px;
}

.app-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

/* --- Typography --- */
.app-header {
    text-align: center;
    color: #1e1b4b;
    font-weight: 800;
    margin-bottom: 5px;
}

.app-subtitle {
    text-align: center;
    color: #be123c;
    margin-top: -5px;
    font-weight: bold;
    letter-spacing: 0.5px;
}

/* --- Layout Grid --- */
.dashboard-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 35px;
}

/* --- Glassmorphism Sidebar Panel --- */
.sidebar-panel {
    flex: 1;
    min-width: 320px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.sidebar-title {
    margin-top: 0;
    color: #1e1b4b;
    border-bottom: 3px solid #e11d48;
    padding-bottom: 8px;
    font-weight: 700;
}

.control-label {
    font-weight: bold;
    display: block;
    margin-top: 15px;
    color: #334155;
    margin-bottom: 8px;
}

/* --- Main Content Panel --- */
.main-content {
    flex: 2.5;
    min-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* --- Metric Cards --- */
.metrics-row {
    display: flex;
    gap: 20px;
}

.metric-card {
    flex: 1;
    text-align: center;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.metric-card.train {
    border-left: 5px solid #e11d48;
}

.metric-card.test {
    border-left: 5px solid #16a34a;
}

.metric-title-train {
    font-size: 11pt;
    color: #9f1239;
    font-weight: bold;
}

.metric-title-test {
    font-size: 11pt;
    color: #166534;
    font-weight: bold;
}

.metric-value-train {
    margin: 5px 0 0 0;
    color: #e11d48;
    font-weight: 800;
}

.metric-value-test {
    margin: 5px 0 0 0;
    color: #16a34a;
    font-weight: 800;
}

/* --- Chart Containers --- */
.chart-container-large {
    background-color: #ffffff;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.charts-row-small {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.chart-container-small {
    flex: 1;
    min-width: 300px;
    background-color: #ffffff;
    padding: 15px;
    border-radius: 16px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}