.sj-tools-home {
    max-width: 1200px;
    margin: 30px auto;
    padding: 20px;
}

.sj-tools-hero {
    text-align: center;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #0f172a, #1d4ed8);
    color: #fff;
    padding: 35px 20px;
    border-radius: 20px;
}

.sj-tools-hero h1 {
    font-size: 40px;
    margin-bottom: 10px;
}

.sj-tools-hero p {
    font-size: 18px;
    margin-bottom: 18px;
}

#sjCalcSearch {
    width: 100%;
    max-width: 500px;
    padding: 14px 18px;
    border-radius: 14px;
    border: none;
    font-size: 16px;
}

.sj-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.sj-tool-card {
    background: #fff;
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    border: 1px solid #e5e7eb;
    transition: 0.25s ease;
}

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

.sj-tool-card h3 {
    font-size: 22px;
    margin: 10px 0;
    color: #111827;
}

.sj-tool-card p {
    color: #4b5563;
    margin-bottom: 14px;
}

.sj-tool-card code {
    display: inline-block;
    background: #f1f5f9;
    padding: 8px 10px;
    border-radius: 10px;
    font-size: 13px;
    word-break: break-word;
}

.sj-tool-category {
    display: inline-block;
    background: #dbeafe;
    color: #1d4ed8;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
}

.sj-premium-calculator {
    max-width: 900px;
    margin: 25px auto;
    padding: 10px;
}

.sj-premium-card {
    background: #fff;
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
    border: 1px solid #e5e7eb;
}

.sj-top-bar {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.sj-top-bar h2 {
    font-size: 32px;
    margin: 0;
}

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

.sj-copy-btn,
.sj-print-btn,
.sj-main-calc-btn {
    background: #0f172a;
    color: #fff;
    border: none;
    padding: 12px 18px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    font-size: 15px;
}

.sj-copy-btn:hover,
.sj-print-btn:hover,
.sj-main-calc-btn:hover {
    background: #1d4ed8;
}

.sj-calc-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 25px;
}

.sj-calc-form label {
    display: flex;
    flex-direction: column;
    font-weight: 600;
    color: #374151;
    font-size: 15px;
}

.sj-calc-form input {
    margin-top: 8px;
    padding: 13px 14px;
    border-radius: 12px;
    border: 1px solid #d1d5db;
    font-size: 16px;
}

.sj-result-box {
    background: #f8fafc;
    border-left: 5px solid #1d4ed8;
    padding: 20px;
    border-radius: 14px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.sj-result-explainer {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    padding: 18px;
    border-radius: 14px;
    color: #374151;
    line-height: 1.7;
}

.sj-calc-bottom-tools {
    margin-top: 22px;
}

.sj-ad-space {
    margin-top: 28px;
    min-height: 120px;
    background: #f3f4f6;
    border: 2px dashed #cbd5e1;
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #64748b;
    font-weight: 600;
}

.sj-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 16px;
    border-radius: 12px;
}

@media (max-width: 768px) {
    .sj-tools-hero h1 {
        font-size: 30px;
    }

    .sj-calc-form {
        grid-template-columns: 1fr;
    }

    .sj-top-bar h2 {
        font-size: 26px;
    }
}