/* =========================================================
   SLOPE-INTERCEPT WORKED EXAMPLE
   ========================================================= */

.glf-example-section
{
    padding-top: 1rem;
}


.glf-equation-card
{
    border: 1px solid #dce3eb;
    border-radius: 1rem;

    background:
        linear-gradient(
            135deg,
            rgba(21, 154, 156, 0.07),
            rgba(31, 111, 139, 0.035)
        );

    padding: 1rem 1.25rem;

    text-align: center;
}


.glf-example-layout
{
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(210px, 0.55fr);
    gap: 1.25rem;
    align-items: center;
}


.glf-graph-card
{
    padding: 0.75rem;

    border: 1px solid #dce3eb;
    border-radius: 1rem;

    background: #ffffff;

    box-shadow:
        0 8px 24px rgba(16, 42, 67, 0.09);
}


.glf-graph
{
    width: 100%;
    height: 430px;

    border: 0 !important;
    border-radius: 0.75rem;

    background: #ffffff;
}


.glf-example-values
{
    display: grid;
    gap: 0.85rem;
}


.glf-value-card
{
    padding: 1rem;

    border: 1px solid #dce3eb;
    border-radius: 0.85rem;

    background: #ffffff;

    box-shadow:
        0 6px 18px rgba(16, 42, 67, 0.06);
}


.glf-value-card span
{
    display: block;

    margin-bottom: 0.25rem;

    color: #64748b;

    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}


.glf-value-card strong
{
    color: #0f766e;

    font-size: 1.2rem;
    font-weight: 800;
}


.glf-step-list
{
    display: grid;
    gap: 0.75rem;
}


.glf-step-row
{
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 1rem;
    align-items: center;

    padding: 1rem 1.1rem;

    border: 1px solid #dce3eb;
    border-radius: 0.85rem;

    background: #ffffff;
}


.glf-step-label
{
    color: #0f766e;

    font-size: 0.85rem;
    font-weight: 800;
}


/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 767.98px)
{
    .glf-example-layout
    {
        grid-template-columns: 1fr;
    }


    .glf-example-values
    {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }


    .glf-graph-card
    {
        overflow-x: auto;
    }


    .glf-graph
    {
        min-width: 520px;
        height: 400px;
    }


    .glf-step-row
    {
        grid-template-columns: 1fr;
        gap: 0.3rem;
    }
}


@media (max-width: 575.98px)
{
    .glf-example-values
    {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   SLOPE TYPES
   ========================================================= */

.glf-slope-layout
{
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(230px, 0.6fr);
    gap: 1.25rem;
    align-items: center;
}


.glf-slope-type-list
{
    display: grid;
    gap: 0.75rem;
}


.glf-slope-type-card
{
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.8rem;
    align-items: center;

    padding: 0.95rem 1rem;

    border: 1px solid #dce3eb;
    border-radius: 0.85rem;

    background: #ffffff;

    box-shadow:
        0 6px 18px rgba(16, 42, 67, 0.06);
}


.glf-slope-type-symbol
{
    display: flex;
    align-items: center;
    justify-content: center;

    width: 38px;
    height: 38px;

    border-radius: 50%;

    background: rgba(21, 154, 156, 0.1);
    color: #0f766e;

    font-size: 1.25rem;
    font-weight: 800;
}


.glf-slope-type-card strong
{
    display: block;

    margin-bottom: 0.15rem;

    color: #102a43;

    font-weight: 800;
}


.glf-slope-type-card p
{
    color: #627d98;

    font-size: 0.84rem;
    line-height: 1.5;
}


.glf-slope-note
{
    padding: 1rem 1.1rem;

    border-left: 4px solid #0f766e;
    border-radius: 0.7rem;

    background: #eef8f7;

    line-height: 1.65;
}


@media (max-width: 767.98px)
{
    .glf-slope-layout
    {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   POINT-SLOPE SECTION
   ========================================================= */

.glf-point-slope-section
{
    padding-top: 1rem;
}


.glf-point-slope-section .glf-value-card strong
{
    overflow-wrap: anywhere;
}


.glf-point-slope-section .glf-slope-note .MathJax
{
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

/* =========================================================
   INTERCEPTS SECTION
   ========================================================= */

.glf-intercepts-section
{
    padding-top: 1rem;
}

/* =========================================================
   REWRITE EQUATION SECTION
   ========================================================= */

.glf-rewrite-section
{
    padding-top: 1rem;
}

/* =========================================================
   COMMON MISTAKES
   ========================================================= */

.glf-mistakes-section
{
    padding-top: 1rem;
}


.glf-mistake-list
{
    display: grid;
    gap: 0.9rem;
}


.glf-mistake-card
{
    padding: 1.15rem 1.2rem;

    border: 1px solid #dce3eb;
    border-left: 4px solid #d97706;
    border-radius: 0.85rem;

    background: #ffffff;

    box-shadow:
        0 6px 18px rgba(16, 42, 67, 0.05);
}


.glf-mistake-card h3
{
    margin-bottom: 0.4rem;

    color: #102a43;

    font-weight: 800;
}


.glf-mistake-card p
{
    color: #486581;

    line-height: 1.65;
}

/* =========================================================
   PRACTICE OPTIONS
   ========================================================= */

.glf-practice-grid
{
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}


.glf-practice-card
{
    display: flex;
    flex-direction: column;

    padding: 1.35rem;

    border: 1px solid #dce3eb;
    border-radius: 1rem;

    background: #ffffff;

    box-shadow:
        0 8px 24px rgba(16, 42, 67, 0.07);
}


.glf-practice-icon
{
    display: flex;
    align-items: center;
    justify-content: center;

    width: 46px;
    height: 46px;

    margin-bottom: 1rem;

    border-radius: 0.8rem;

    background: rgba(21, 154, 156, 0.1);
    color: #0f766e;

    font-size: 1.05rem;
}


.glf-practice-eyebrow
{
    margin-bottom: 0.35rem;

    color: #0f766e;

    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}


.glf-practice-card h3
{
    margin-bottom: 0.55rem;

    color: #102a43;

    font-size: 1.1rem;
    font-weight: 800;
}


.glf-practice-card > p:not(.glf-practice-eyebrow)
{
    color: #627d98;

    line-height: 1.65;
}


.glf-practice-card .btn
{
    margin-top: auto;
}


.glf-mini-link-list
{
    display: grid;
    gap: 0.45rem;

    margin-top: auto;
}


.glf-mini-link-list a
{
    color: #0f766e;

    font-size: 0.88rem;
    font-weight: 700;

    text-decoration: none;
}


.glf-mini-link-list a:hover
{
    text-decoration: underline;
}


/* =========================================================
   WHY / TUTORING
   ========================================================= */

.glf-why-section,
.glf-tutoring-section
{
    padding: 1.35rem;

    border: 1px solid #dce3eb;
    border-radius: 1rem;

    background: #f8fafc;
}


.glf-why-section p,
.glf-tutoring-section p
{
    line-height: 1.75;
}


/* =========================================================
   RELATED RESOURCES
   ========================================================= */

.glf-related-grid
{
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}


.glf-related-card
{
    display: block;

    height: 100%;

    padding: 1.2rem;

    border: 1px solid #dce3eb;
    border-radius: 0.9rem;

    background: #ffffff;
    color: inherit;

    text-decoration: none;

    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}


.glf-related-card:hover
{
    transform: translateY(-2px);

    border-color: #159a9c;

    color: inherit;

    box-shadow:
        0 8px 22px rgba(16, 42, 67, 0.08);
}


.glf-related-card h3
{
    margin-bottom: 0.4rem;

    color: #102a43;

    font-size: 1rem;
    font-weight: 800;
}


.glf-related-card p
{
    margin-bottom: 0;

    color: #627d98;

    font-size: 0.87rem;
    line-height: 1.6;
}


/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 900px)
{
    .glf-practice-grid
    {
        grid-template-columns: 1fr;
    }
}


@media (max-width: 767.98px)
{
    .glf-related-grid
    {
        grid-template-columns: 1fr;
    }
}

/* =========================================================
   GUIDE INTRO / TOC
   ========================================================= */

.glf-guide-intro
{
    scroll-margin-top: 5rem;
}


.glf-toc
{
    padding: 1.35rem;

    border: 1px solid #dce3eb;
    border-radius: 1rem;

    background: #f8fafc;
}


.glf-toc ul
{
    margin-bottom: 0;
    padding-left: 1.2rem;

    columns: 2;
    column-gap: 2rem;
}


.glf-toc li
{
    margin-bottom: 0.5rem;

    break-inside: avoid;
}


.glf-toc a
{
    color: #0f766e;

    font-weight: 650;

    text-decoration: none;
}


.glf-toc a:hover
{
    text-decoration: underline;
}


[id]
{
    scroll-margin-top: 5rem;
}


@media (max-width: 767.98px)
{
    .glf-toc ul
    {
        columns: 1;
    }
}