:root {
    --sg-bg-canvas: #0D1117;
    --sg-bg-surface: #161B22;
    --sg-text-primary: #FFFFFF;
    --sg-text-secondary: #8B949E;
    --sg-accent-execute: #3FB950;
    --sg-accent-structure: #58A6FF;
    --sg-accent-error: #F85149;
    --sg-accent-warning: #D29922;
    --sg-border-subtle: #30363D;
    --sg-font-sans: 'Inter', sans-serif;
    --sg-font-mono: 'JetBrains Mono', monospace;
}

.sg-roas-wrapper {
    background: var(--sg-bg-canvas);
    color: var(--sg-text-primary);
    font-family: var(--sg-font-sans);
    padding: 24px;
    border-radius: 8px;
    box-sizing: border-box;
}

.sg-roas-wrapper * {
    box-sizing: border-box;
}

.sg-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--sg-border-subtle);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.sg-header h2 {
    margin: 0 0 4px 0;
    color: var(--sg-text-primary);
    font-size: 24px;
}

.sg-header p {
    margin: 0;
    color: var(--sg-text-secondary);
    font-size: 14px;
}

.sg-actions button {
    background: var(--sg-accent-structure);
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 2px;
    font-family: var(--sg-font-mono);
    cursor: pointer;
    margin-left: 8px;
    transition: opacity 0.2s;
}

.sg-actions button#sg-btn-reset {
    background: var(--sg-border-subtle);
}

.sg-actions button:hover {
    opacity: 0.85;
}

.sg-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 992px) {
    .sg-grid {
        grid-template-columns: 1fr;
    }
}

.sg-card {
    background: var(--sg-bg-surface);
    border: 1px solid var(--sg-border-subtle);
    border-radius: 6px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.sg-card h3 {
    margin-top: 0;
    font-size: 16px;
    border-bottom: 1px solid var(--sg-border-subtle);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.sg-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.sg-input-group {
    display: flex;
    flex-direction: column;
}

.sg-input-group label {
    font-size: 12px;
    color: var(--sg-text-secondary);
    margin-bottom: 6px;
}

.sg-input-group input, 
.sg-input-group select {
    background: var(--sg-bg-surface);
    border: 1px solid var(--sg-border-subtle);
    color: var(--sg-text-primary);
    padding: 10px;
    border-radius: 2px;
    font-family: var(--sg-font-mono);
    outline: none;
    transition: border 0.2s;
}

.sg-input-group input:focus, 
.sg-input-group select:focus {
    border-color: var(--sg-accent-structure);
}

.sg-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.sg-metric-card {
    background: var(--sg-bg-surface);
    border: 1px solid var(--sg-border-subtle);
    border-radius: 6px;
    padding: 16px;
    text-align: center;
}

.sg-metric-card span {
    font-size: 12px;
    color: var(--sg-text-secondary);
    display: block;
    margin-bottom: 8px;
}

.sg-metric-card h4.sg-num {
    margin: 0;
    font-size: 20px;
    font-family: var(--sg-font-mono);
}

.sg-positive { color: var(--sg-accent-execute) !important; }
.sg-negative { color: var(--sg-accent-error) !important; }

.sg-health-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--sg-bg-surface);
    padding: 16px 24px;
    border-radius: 6px;
    border: 1px solid var(--sg-border-subtle);
    margin-bottom: 24px;
}

.sg-score-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--sg-accent-structure);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--sg-font-mono);
    font-weight: 600;
}

.sg-chart-container {
    height: 300px;
    position: relative;
}

.sg-recommendations-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sg-rule-card {
    padding: 12px;
    border-radius: 4px;
    border-left: 4px solid var(--sg-border-subtle);
    background: rgba(48, 54, 61, 0.3);
    font-size: 13px;
}

.sg-rule-card.warning { border-left-color: var(--sg-accent-warning); }
.sg-rule-card.danger { border-left-color: var(--sg-accent-error); }
.sg-rule-card.success { border-left-color: var(--sg-accent-execute); }
.sg-rule-card.info { border-left-color: var(--sg-accent-structure); }
/* --- Range Slider Styling --- */
input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
    padding: 10px 0;
    margin: 8px 0;
}

input[type=range]:focus {
    outline: none;
    border: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--sg-accent-structure);
    cursor: pointer;
    margin-top: -7px;
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.4);
    transition: transform 0.1s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--sg-border-subtle);
    border-radius: 2px;
}

/* Firefox Support */
input[type=range]::-moz-range-thumb {
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--sg-accent-structure);
    cursor: pointer;
    border: none;
}
input[type=range]::-moz-range-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--sg-border-subtle);
    border-radius: 2px;
}
/* =========================================
   Mobile Responsiveness & Media Queries
   ========================================= */

@media (max-width: 768px) {
    /* Form inputs ko single column mein convert karein */
    .sg-form-grid {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }

    /* Header aur buttons ko mobile friendly banayein */
    .sg-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .sg-actions {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        gap: 8px;
    }

    .sg-actions button {
        margin-left: 0 !important;
        flex: 1 1 auto;
        padding: 10px;
        font-size: 13px;
    }

    /* Padding adjust karein choti screens ke liye */
    .sg-roas-wrapper {
        padding: 16px;
    }

    .sg-card {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    /* Chote mobile phones ke liye result cards ko single column karein */
    .sg-metrics-grid {
        grid-template-columns: 1fr;
    }
}
/* =========================================
   Campaign Comparison Engine
   ========================================= */
.sg-campaign-item {
    background: rgba(48, 54, 61, 0.2);
    border: 1px solid var(--sg-border-subtle);
    border-radius: 4px;
    padding: 12px;
    position: relative;
    margin-bottom: 8px;
    animation: fadeIn 0.3s ease-in-out;
}

.sg-campaign-item .sg-remove-campaign {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--sg-accent-error);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.1s;
}

.sg-campaign-item .sg-remove-campaign:hover {
    transform: scale(1.1);
}

.sg-campaign-table th {
    font-weight: 600;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}