:root {
    --smn-bg-main: #0d1117;
    --smn-bg-card: #161b22;
    --smn-text-bright: #f0f6fc;
    --smn-text-dark: #8b949e;
    --smn-brand-red: #e21e26;
    --smn-ad-bg: #21262d;
    --smn-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.smn-premium-box {
    background-color: var(--smn-bg-card);
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 22px;
    max-width: 420px;
    margin: 25px auto;
    font-family: var(--smn-font);
    color: var(--smn-text-bright);
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
    box-sizing: border-box;
}

.smn-title-bar {
    margin: 0 0 18px 0;
    font-size: 17px;
    font-weight: 700;
    border-left: 4px solid var(--smn-brand-red);
    padding-left: 12px;
    color: var(--smn-text-bright);
}

.smn-tab-header {
    display: flex;
    gap: 12px;
    margin-bottom: 18px;
    border-bottom: 1px solid #30363d;
    padding-bottom: 6px;
}

.smn-tab-trigger {
    background: none;
    border: none;
    color: var(--smn-text-dark);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    padding: 6px 12px;
    transition: color 0.2s ease;
}

.smn-tab-trigger.active {
    color: var(--smn-brand-red);
    border-bottom: 2px solid var(--smn-brand-red);
}

.smn-panel-item {
    display: none;
}

.smn-panel-item.active {
    display: block;
}

.smn-input-field {
    width: 100%;
    padding: 12px;
    background-color: var(--smn-bg-main);
    border: 1px solid #30363d;
    border-radius: 6px;
    color: var(--smn-text-bright);
    box-sizing: border-box;
    margin-bottom: 15px;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.smn-input-field:focus {
    border-color: var(--smn-brand-red);
    outline: none;
}

.smn-action-btn {
    width: 100%;
    padding: 13px;
    background-color: var(--smn-brand-red);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    font-size: 14px;
    transition: opacity 0.2s ease;
}

.smn-action-btn:hover {
    opacity: 0.92;
}

.smn-results-wrapper {
    margin-top: 15px;
    font-size: 13px;
    color: var(--smn-text-dark);
}

.smn-premium-ad-placeholder {
    background-color: var(--smn-ad-bg);
    border: 1px dashed #30363d;
    text-align: center;
    padding: 12px;
    margin: 20px auto;
    max-width: 728px;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--smn-text-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-sizing: border-box;
}