:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #2d2d2d;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

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

header h1 {
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: #ffffff;
}

header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.control-panel {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

select {
    background-color: #2a2a2a;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 6px;
    font-size: 1rem;
    outline: none;
}

select:focus {
    border-color: var(--accent-color);
}

button {
    cursor: pointer;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 6px;
    border: none;
    font-size: 1rem;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.result-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.result-header h2 {
    font-size: 1.2rem;
    color: #ffffff;
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.btn-secondary {
    background-color: #2d2d2d;
    color: var(--text-primary);
    font-size: 0.85rem;
    padding: 6px 12px;
}

.btn-secondary:hover {
    background-color: #3d3d3d;
}

.result-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.result-item {
    background-color: #161616;
    padding: 10px 14px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.result-item.full-width {
    grid-column: span 2;
}

.item-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 2px;
}

.item-value {
    font-size: 1rem;
    color: #ffffff;
    font-family: monospace;
}

.ad-container {
    background-color: #161616;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ad-placeholder {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 40px;
}

@media (max-width: 600px) {
    .result-body {
        grid-template-columns: 1fr;
    }
    .result-item.full-width {
        grid-column: span 1;
    }
    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}