:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #0f0f0f;
    --bg-tertiary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --border-color: #2a2a2a;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-hover: linear-gradient(135deg, #7a8ff0 0%, #8a5cb8 100%);
}

.light-theme {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e5e5e5;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
}

.sponsor-hero-card {
    max-width: 860px;
    margin: 28px auto 0;
    padding: 22px 22px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(14px);
}

.sponsor-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 18px;
    align-items: center;
}

.sponsor-hero-card h2 {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.3px;
    margin-bottom: 8px;
}

.sponsor-hero-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.sponsor-price-badge {
    display: inline-flex;
    align-items: center;
    padding: 14px 18px;
    border-radius: 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    justify-self: end;
}

.sponsor-price-badge .sponsor-price-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sponsor-price-badge .sponsor-price-top {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 800;
    color: var(--text-secondary);
}

.sponsor-price-badge .sponsor-price-value {
    font-size: 22px;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sponsor-section {
    padding: 110px 0;
    background: var(--bg-secondary);
}

.sponsor-section.alt {
    background: var(--bg-tertiary);
}

.sponsor-faq-accordion {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sponsor-faq-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.sponsor-faq-item[open] {
    border-color: rgba(102, 126, 234, 0.45);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}

.sponsor-faq-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    font-weight: 900;
    font-size: 15px;
    letter-spacing: -0.2px;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.sponsor-faq-summary::-webkit-details-marker {
    display: none;
}

.sponsor-faq-summary::after {
    content: "";
    flex-shrink: 0;
    width: 9px;
    height: 9px;
    border-right: 2px solid var(--text-secondary);
    border-bottom: 2px solid var(--text-secondary);
    transform: rotate(45deg);
    transition: transform 0.25s ease;
    margin-top: -4px;
}

.sponsor-faq-item[open] .sponsor-faq-summary::after {
    transform: rotate(-135deg);
    margin-top: 4px;
}

.sponsor-faq-panel {
    padding: 0 22px 20px;
}

.sponsor-faq-panel p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
    padding-top: 4px;
    border-top: 1px solid var(--border-color);
}

.sponsor-button-row {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 22px;
}

.sponsor-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 18px;
    margin-top: 26px;
}

.sponsor-tile {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 22px;
}

.sponsor-tile .tile-icon {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.sponsor-tile .tile-icon svg {
    width: 22px;
    height: 22px;
    color: white;
}

.sponsor-tile h3 {
    font-size: 16px;
    font-weight: 900;
    margin-bottom: 10px;
}

.sponsor-tile p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}

.sponsor-steps {
    max-width: 980px;
    margin: 26px auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.sponsor-step {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 22px;
}

.sponsor-step .step-num {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: rgba(102, 126, 234, 0.16);
    border: 1px solid rgba(102, 126, 234, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    margin-bottom: 12px;
}

.sponsor-step h3 {
    font-size: 16px;
    font-weight: 900;
    margin-bottom: 10px;
}

.sponsor-step p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}

.sponsor-disclaimer {
    max-width: 980px;
    margin: 22px auto 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}