:root { --gold: #f4c842; --gold-dim: rgba(244, 200, 66, 0.15); }

.shop-section-label {
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--accent);
    opacity: 0.8;
    width: 100%;
    max-width: 960px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(42, 187, 165, 0.2);
}

.grades-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 960px;
    width: 100%;
    animation: fadeUp 0.8s ease 0.2s forwards;
    opacity: 0;
    transform: translateY(20px);
}

.grade-card {
    border-radius: 18px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.2s, border-color 0.3s;
}

.grade-card:hover { transform: translateY(-4px); }

.grade-free {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}

.grade-free:hover { border-color: rgba(42, 187, 165, 0.35); }

.grade-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
}

.grade-badge { font-size: 32px; }

.grade-name {
    font-size: 15px;
    font-weight: 900;
    color: var(--Background);
    letter-spacing: 2px;
}

.grade-subtitle {
    font-size: 11px;
    color: var(--secondary-txt);
    letter-spacing: 1.5px;
}

.grade-price-tag {
    text-align: center;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2px;
    align-self: center;
}

.grade-price-tag.free {
    background: rgba(42, 187, 165, 0.12);
    color: var(--accent);
    border: 1px solid rgba(42, 187, 165, 0.3);
}

.grade-price-tag.premium {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--gold-dim);
    border: 1px solid rgba(244, 200, 66, 0.4);
    padding: 10px 24px;
    border-radius: 16px;
}

.price-amount {
    font-size: 28px;
    font-weight: 900;
    color: var(--gold);
    letter-spacing: 1px;
}

.price-duration {
    font-size: 11px;
    color: rgba(244, 200, 66, 0.7);
    letter-spacing: 1.5px;
    font-weight: normal;
}

.grade-perks {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.grade-perks li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--secondary-txt);
    line-height: 1.4;
}

.grade-perks li strong { color: var(--Background); }
.perk-icon { font-size: 14px; flex-shrink: 0; }

.grade-premium {
    max-width: 960px;
    width: 100%;
    background: linear-gradient(135deg, rgba(244, 200, 66, 0.06) 0%, rgba(42, 187, 165, 0.06) 100%);
    border: 1px solid rgba(244, 200, 66, 0.3);
    box-shadow: 0 0 40px rgba(244, 200, 66, 0.08);
    animation: fadeUp 0.8s ease 0.3s forwards;
    opacity: 0;
    transform: translateY(20px);
}

.grade-premium:hover {
    border-color: rgba(244, 200, 66, 0.5);
    box-shadow: 0 0 50px rgba(244, 200, 66, 0.12);
    transform: translateY(-2px);
}

.grade-premium-inner {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 40px;
    padding: 8px 8px;
}

.grade-premium .grade-header { text-align: center; min-width: 130px; }
.grade-premium .grade-name { font-size: 20px; color: var(--gold); }
.grade-premium .grade-badge { font-size: 40px; }

.grade-premium .grade-perks {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 24px;
}

.grade-premium .grade-perks li { font-size: 9px; }

.grade-buy-btn {
    min-width: 180px;
    background: linear-gradient(135deg, var(--gold) 0%, #e8a820 100%);
    color: #001f2b;
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 1px;
    white-space: nowrap;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 20px rgba(244, 200, 66, 0.35);
    text-align: center;
}

.grade-buy-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 28px rgba(244, 200, 66, 0.5);
}

.grade-coming {
    max-width: 960px;
    width: 100%;
    background: rgba(193, 237, 204, 0.02);
    border: 1px dashed var(--card-border);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 20px 32px;
    animation: fadeUp 0.8s ease 0.4s forwards;
    opacity: 0;
    transform: translateY(20px);
}

.grade-coming:hover { transform: none; border-color: rgba(193, 237, 204, 0.2); }

.grade-coming .grade-header {
    flex-direction: row;
    gap: 16px;
    text-align: left;
}

.grade-coming .grade-badge { font-size: 24px; }
.grade-coming .grade-name { font-size: 16px; color: var(--secondary-txt); }
.grade-coming .grade-subtitle { text-align: left; }

.grade-coming-tag {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--secondary-txt);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 6px 16px;
    border-radius: 20px;
}

.shop-notice {
    max-width: 960px;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px 24px;
    color: var(--secondary-txt);
    font-size: 13px;
    text-align: center;
    line-height: 1.7;
    animation: fadeUp 0.8s ease 0.5s forwards;
    opacity: 0;
    transform: translateY(20px);
}

@media (max-width: 900px) {
    .grades-grid { grid-template-columns: repeat(2, 1fr); }

    .grade-premium-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 24px;
    }

    .grade-premium .grade-perks { grid-template-columns: 1fr; }
    .grade-premium .grade-header { align-items: center; }
    .grade-buy-btn { align-self: center; }
}

@media (max-width: 560px) {
    .page-content { padding: 40px 16px; }
    .grades-grid { grid-template-columns: 1fr; }

    .grade-coming {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}