/*!
==========================================================
ToolXone Shared Tool Article
----------------------------------------------------------
Reusable educational-content design for:
- Calculators
- Converters
- Health tools
- Utilities
- Future ToolXone tools

Clean replacement:
- Preserves existing .tool-article contract
- Preserves Discount Calculator article components
- Consolidates responsive rules
- Adds mobile overflow protection
==========================================================
*/

/* =====================================================
   1. ARTICLE CONTAINER
   ===================================================== */

.tool-article {
    width: min(100% - 32px, 1070px);
    max-width: 100%;
    min-width: 0;
    margin: 44px auto;
    padding: 42px 38px;

    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 22px;

    box-shadow:
        0 14px 35px rgba(15, 23, 42, 0.07);

    color: #334155;

    font-size: 17px;
    line-height: 1.75;

    box-sizing: border-box;
    overflow-wrap: anywhere;
}

/* =====================================================
   2. MAIN ARTICLE HEADING
   ===================================================== */

.tool-article > h1 {
    margin: 0 0 26px;

    color: #10b981;

    font-size: 30px;
    line-height: 1.25;
    font-weight: 700;

    text-align: center;
    overflow-wrap: anywhere;
}

/* =====================================================
   3. ARTICLE SECTION HEADINGS
   ===================================================== */

.tool-article > h2 {
    margin: 38px 0 14px;

    color: #0f172a;

    font-size: 22px;
    line-height: 1.35;
    font-weight: 700;

    overflow-wrap: anywhere;
}

.tool-article > h2:first-of-type {
    margin-top: 30px;
}

/* =====================================================
   4. OPTIONAL SUBSECTION HEADINGS
   ===================================================== */

.tool-article h3 {
    margin: 28px 0 12px;

    color: #0f172a;

    font-size: 20px;
    line-height: 1.4;
    font-weight: 700;

    overflow-wrap: anywhere;
}

/* =====================================================
   5. PARAGRAPHS
   ===================================================== */

.tool-article p {
    margin: 0 0 18px;
}

.tool-article p:last-child {
    margin-bottom: 0;
}

/* =====================================================
   6. LISTS
   ===================================================== */

.tool-article ul,
.tool-article ol {
    margin: 16px 0 24px;
    padding-left: 28px;
}

.tool-article li {
    margin-bottom: 10px;
    padding-left: 4px;
}

.tool-article li:last-child {
    margin-bottom: 0;
}

.tool-article li::marker {
    color: #10b981;
    font-weight: 700;
}

/* =====================================================
   7. STRONG / IMPORTANT TEXT
   ===================================================== */

.tool-article strong {
    color: #0f172a;
    font-weight: 700;
}

/* =====================================================
   8. LINKS
   ===================================================== */

.tool-article a {
    color: #059669;
    font-weight: 600;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;

    transition:
        color 0.2s ease,
        text-decoration-color 0.2s ease;
}

.tool-article a:hover {
    color: #047857;
}

.tool-article a:focus-visible {
    outline: 3px solid rgba(16, 185, 129, 0.25);
    outline-offset: 3px;
    border-radius: 3px;
}

/* =====================================================
   9. SECTION RHYTHM
   ===================================================== */

.tool-article h3 + p {
    margin-top: 0;
}

.tool-article ul + h3,
.tool-article ol + h3,
.tool-article p + h3 {
    margin-top: 38px;
}

/* =====================================================
   10. OPTIONAL ARTICLE CALLOUTS
   ===================================================== */

.tool-article .article-note,
.tool-article .article-example {
    margin: 24px 0;
    padding: 18px 20px;

    border-radius: 14px;

    line-height: 1.65;
    box-sizing: border-box;
    max-width: 100%;
}

.tool-article .article-note {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-left: 4px solid #10b981;
}

.tool-article .article-example {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-left: 4px solid #3b82f6;
}

/* =====================================================
   11. TABLE SUPPORT
   ===================================================== */

.tool-article .article-table-wrap {
    width: 100%;
    max-width: 100%;
    margin: 24px 0;

    overflow-x: auto;
    -webkit-overflow-scrolling: touch;

    border: 1px solid #e2e8f0;
    border-radius: 14px;
    box-sizing: border-box;
}

.tool-article table {
    width: 100%;
    border-collapse: collapse;

    font-size: 16px;
}

.tool-article th,
.tool-article td {
    padding: 14px 16px;

    border-bottom: 1px solid #e2e8f0;

    text-align: left;
    vertical-align: top;
}

.tool-article th {
    background: #f8fafc;
    color: #0f172a;

    font-weight: 700;
}

.tool-article tr:last-child td {
    border-bottom: 0;
}

/* =====================================================
   12. DISCOUNT CALCULATOR — ARTICLE GUIDE COMPONENTS
   ===================================================== */

/* Numbered guide steps */

.tool-article ol.discount-guide-steps {
    counter-reset: discount-step;

    margin: 22px 0 30px;
    padding: 0;

    list-style: none;

    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.tool-article ol.discount-guide-steps > li {
    position: relative;

    counter-increment: discount-step;

    margin: 0;
    padding: 22px 20px 22px 72px;

    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;

    color: #334155;
    line-height: 1.65;

    box-sizing: border-box;
    min-width: 0;
}

.tool-article ol.discount-guide-steps > li::before {
    content: counter(discount-step);

    position: absolute;
    top: 22px;
    left: 20px;

    width: 38px;
    height: 38px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #10b981;
    color: #ffffff;

    border-radius: 50%;

    font-size: 16px;
    font-weight: 700;
    line-height: 1;

    box-sizing: border-box;
}

.tool-article ol.discount-guide-steps > li strong {
    display: block;

    margin: 0 0 4px;

    color: #0f172a;
    font-weight: 700;
}

/* Guide / use-case list */

.tool-article ul.discount-guide-list {
    margin: 20px 0 30px;
    padding: 0;

    list-style: none;

    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-article ul.discount-guide-list > li {
    position: relative;

    margin: 0;
    padding: 13px 16px 13px 50px;

    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;

    color: #334155;
    line-height: 1.6;

    box-sizing: border-box;
    min-width: 0;
}

.tool-article ul.discount-guide-list > li::before {
    content: "✓";

    position: absolute;
    top: 13px;
    left: 16px;

    width: 22px;
    height: 22px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #d1fae5;
    color: #059669;

    border-radius: 50%;

    font-size: 14px;
    font-weight: 700;
    line-height: 1;

    box-sizing: border-box;
}

/* =====================================================
   13. DARK MODE
   ===================================================== */

body.dark-mode .tool-article,
body.dark .tool-article,
[data-theme="dark"] .tool-article {
    background: #111827;
    border-color: #334155;
    color: #cbd5e1;

    box-shadow:
        0 14px 35px rgba(0, 0, 0, 0.22);
}

body.dark-mode .tool-article > h1,
body.dark .tool-article > h1,
[data-theme="dark"] .tool-article > h1 {
    color: #34d399;
}

body.dark-mode .tool-article > h2,
body.dark .tool-article > h2,
[data-theme="dark"] .tool-article > h2,
body.dark-mode .tool-article h3,
body.dark .tool-article h3,
[data-theme="dark"] .tool-article h3,
body.dark-mode .tool-article strong,
body.dark .tool-article strong,
[data-theme="dark"] .tool-article strong {
    color: #f1f5f9;
}

body.dark-mode .tool-article a,
body.dark .tool-article a,
[data-theme="dark"] .tool-article a {
    color: #34d399;
}

body.dark-mode .tool-article a:hover,
body.dark .tool-article a:hover,
[data-theme="dark"] .tool-article a:hover {
    color: #6ee7b7;
}

body.dark-mode .tool-article .article-note,
body.dark .tool-article .article-note,
[data-theme="dark"] .tool-article .article-note {
    background: rgba(16, 185, 129, 0.08);
    border-color: #065f46;
    border-left-color: #34d399;
}

body.dark-mode .tool-article .article-example,
body.dark .tool-article .article-example,
[data-theme="dark"] .tool-article .article-example {
    background: #172033;
    border-color: #334155;
    border-left-color: #60a5fa;
}

body.dark-mode .tool-article .article-table-wrap,
body.dark .tool-article .article-table-wrap,
[data-theme="dark"] .tool-article .article-table-wrap {
    border-color: #334155;
}

body.dark-mode .tool-article th,
body.dark .tool-article th,
[data-theme="dark"] .tool-article th {
    background: #172033;
    color: #f1f5f9;
}

body.dark-mode .tool-article th,
body.dark-mode .tool-article td,
body.dark .tool-article th,
body.dark .tool-article td,
[data-theme="dark"] .tool-article th,
[data-theme="dark"] .tool-article td {
    border-color: #334155;
}

body.dark-mode .tool-article ol.discount-guide-steps > li,
body.dark .tool-article ol.discount-guide-steps > li,
[data-theme="dark"] .tool-article ol.discount-guide-steps > li,
body.dark-mode .tool-article ul.discount-guide-list > li,
body.dark .tool-article ul.discount-guide-list > li,
[data-theme="dark"] .tool-article ul.discount-guide-list > li {
    background: #172033;
    border-color: #334155;
    color: #cbd5e1;
}

body.dark-mode .tool-article ol.discount-guide-steps > li strong,
body.dark .tool-article ol.discount-guide-steps > li strong,
[data-theme="dark"] .tool-article ol.discount-guide-steps > li strong {
    color: #f1f5f9;
}

body.dark-mode .tool-article ul.discount-guide-list > li::before,
body.dark .tool-article ul.discount-guide-list > li::before,
[data-theme="dark"] .tool-article ul.discount-guide-list > li::before {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

/* =====================================================
   14. TABLET
   ===================================================== */

@media (max-width: 768px) {

    .tool-article {
        width: calc(100% - 24px);
        margin: 32px auto;
        padding: 32px 26px;

        border-radius: 18px;

        font-size: 16px;
        line-height: 1.7;
    }

    .tool-article > h1 {
        font-size: 28px;
    }

    .tool-article > h2 {
        margin-bottom: 22px;
        font-size: 26px;
    }

    .tool-article h3 {
        margin-top: 32px;
        font-size: 20px;
    }

    .tool-article ul,
    .tool-article ol {
        padding-left: 24px;
    }

    .tool-article ol.discount-guide-steps {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .tool-article ol.discount-guide-steps > li {
        padding: 20px 18px 20px 68px;
    }

    .tool-article ol.discount-guide-steps > li::before {
        top: 20px;
        left: 18px;
    }
}

/* =====================================================
   15. MOBILE
   ===================================================== */

@media (max-width: 480px) {

    .tool-article {
        width: calc(100% - 20px);
        margin: 26px auto;
        padding: 26px 20px;

        border-radius: 16px;

        font-size: 15.5px;
        line-height: 1.68;
    }

    .tool-article > h1 {
        margin-bottom: 22px;
        font-size: 26px;
    }

    .tool-article > h2 {
        margin-bottom: 20px;
        font-size: 24px;
    }

    .tool-article h3 {
        margin: 28px 0 12px;
        font-size: 19px;
    }

    .tool-article p {
        margin-bottom: 16px;
    }

    .tool-article ul,
    .tool-article ol {
        margin: 14px 0 20px;
        padding-left: 22px;
    }

    .tool-article li {
        margin-bottom: 8px;
    }

    .tool-article .article-note,
    .tool-article .article-example {
        padding: 16px;
        margin: 20px 0;
    }

    .tool-article .article-table-wrap {
        margin: 20px 0;
    }

    .tool-article ol.discount-guide-steps {
        gap: 12px;
        margin: 18px 0 24px;
    }

    .tool-article ol.discount-guide-steps > li {
        padding: 17px 15px 17px 60px;
        border-radius: 14px;
    }

    .tool-article ol.discount-guide-steps > li::before {
        top: 17px;
        left: 15px;

        width: 34px;
        height: 34px;

        font-size: 15px;
    }

    .tool-article ul.discount-guide-list {
        gap: 9px;
    }

    .tool-article ul.discount-guide-list > li {
        padding: 12px 13px 12px 46px;
        border-radius: 12px;
    }

    .tool-article ul.discount-guide-list > li::before {
        top: 12px;
        left: 13px;
    }
}

/* =====================================================
   16. VERY SMALL MOBILE
   ===================================================== */

@media (max-width: 360px) {

    .tool-article {
        width: calc(100% - 16px);
        padding: 22px 16px;
        margin: 20px auto;

        font-size: 15px;
    }

    .tool-article > h1 {
        font-size: 24px;
    }

    .tool-article > h2 {
        font-size: 22px;
    }

    .tool-article h3 {
        font-size: 18px;
    }

    .tool-article ul,
    .tool-article ol {
        padding-left: 20px;
    }

    .tool-article ol.discount-guide-steps > li {
        padding-left: 54px;
    }
}