/* --- Use Cases / Anwendungsszenarien Section --- */
.use-cases-section {
    padding: clamp(3.5rem, 6.5vh, 5rem) 0;
    position: relative;
    border-bottom: 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

/* Sub-heading that separates the use-case scenarios from the feature tiles so
   the two card types read as intentional groups (and gives the "Features" nav
   link a real target). */
.section-subheading {
    text-align: center;
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 3.25rem 0 1.5rem;
    scroll-margin-top: 96px;
}

.use-cases-feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 900px) {
    .use-cases-feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.25rem;
    }
}

@media (max-width: 600px) {
    .use-cases-feature-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 1rem;
    }
}

.use-case-card {
    background: oklch(0.27 0.035 130 / 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.2rem 1.6rem 1.7rem 1.6rem;
    text-align: left;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--card-accent-border, var(--accent)), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.use-case-card:nth-child(1) { --card-accent-border: oklch(0.68 0.13 150); }
.use-case-card:nth-child(2) { --card-accent-border: oklch(0.62 0.14 45); }
.use-case-card:nth-child(3) { --card-accent-border: oklch(0.75 0.10 150); }


/* Use-case cards are static content, not links — no hover lift so they don't
   read as clickable. The top accent bar (::before) stays visible instead. */
.use-case-card::before {
    opacity: 1;
}

.use-case-image {
    display: block;
    width: 100%;
    max-width: 272px;
    height: 150px;
    object-fit: contain;
    border-radius: 8px;
    margin: 0 auto 0 auto;
}

.cta-github-mascot {
    display: block;
    width: 100%;
    max-width: 250px;
    height: auto;
    margin: 1.5rem auto;
}

/* Shared framing so the section mascots read as one set even though the
   underlying illustrations differ slightly in style (a consistent, soft ground
   shadow — true art-direction alignment needs the assets themselves redrawn). */
.compat-mascot,
.features-questions-mascot,
.comparison-mascot,
.selfhost-mascot {
    filter: drop-shadow(0 6px 14px oklch(0.15 0.02 145 / 0.22));
}

.features-questions-mascot {
    display: block;
    width: 100%;
    max-width: 185px;
    height: auto;
    margin: -1rem auto 0.4rem auto;
}

.comparison-mascot {
    display: block;
    width: 100%;
    max-width: 195px;
    height: auto;
    margin: -1.4rem auto 0.4rem auto;
}

.use-case-icon {
    font-size: 1.6rem;
    margin-right: 0.6rem;
    display: inline-block;
    vertical-align: middle;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
}

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: white;
}

.use-case-card p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 0;
}

/* --- Comparison Section --- */
.comparison-section {
    padding: clamp(3.5rem, 6.5vh, 5rem) 0;
    background: transparent;
    border-bottom: 0;
}



.comparison-table-wrapper {
    overflow-x: auto;
    background: oklch(0.27 0.035 130 / 0.35);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin-top: 1rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

.comparison-table th, 
.comparison-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.comparison-table th {
    background: oklch(0.20 0.025 140 / 0.6);
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
}

.comparison-table th.highlight,
.comparison-table td.highlight {
    background: oklch(0.68 0.13 150 / 0.08);
}

.comparison-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.feat-name {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.feat-name strong {
    color: white;
    font-weight: 600;
}

.feat-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.check {
    color: oklch(0.68 0.13 150);
    font-weight: 700;
}

.cross {
    color: oklch(0.68 0.17 25);
    font-weight: 600;
    opacity: 1;
}

@media (max-width: 768px) {
    .comparison-table th,
    .comparison-table td {
        padding: 1rem;
        font-size: 0.85rem;
    }
}

/* On phones the 3-column table is turned into stacked cards so there is
   no horizontal scrolling — one card per feature, KoalaSync above Teleparty. */
@media (max-width: 600px) {
    .comparison-table-wrapper {
        overflow-x: visible;
        background: transparent;
        border: none;
        box-shadow: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        margin-top: 0;
    }

    .comparison-table {
        display: block;
        font-size: 0.95rem;
    }

    /* Visually hide the header row but keep it for screen readers. */
    .comparison-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .comparison-table tbody,
    .comparison-table tr,
    .comparison-table td {
        display: block;
        width: 100%;
    }

    .comparison-table tbody tr {
        background: oklch(0.27 0.035 130 / 0.35);
        border: 1px solid var(--glass-border);
        border-radius: 14px;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
        margin-bottom: 1rem;
        overflow: hidden;
    }

    .comparison-table tbody tr:last-child {
        margin-bottom: 0;
    }

    .comparison-table td {
        padding: 0.85rem 1.1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .comparison-table tbody tr td:last-child {
        border-bottom: none;
    }

    /* Feature name acts as the card header. */
    .comparison-table td.feat-name {
        background: oklch(0.20 0.025 140 / 0.55);
        padding: 0.9rem 1.1rem;
    }

    /* Room is back on the card, so show the description again. */
    .feat-desc {
        display: block;
        margin-top: 0.15rem;
    }

    /* Label each value cell with the product it belongs to. */
    .comparison-table td.check,
    .comparison-table td.cross {
        display: flex;
        align-items: baseline;
        gap: 0.4rem;
    }

    .comparison-table td.check::before,
    .comparison-table td.cross::before {
        flex: 0 0 5.5rem;
        font-size: 0.7rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: var(--text-muted);
        opacity: 0.85;
    }

    .comparison-table td.check::before,
    .comparison-table td.cross::before {
        content: attr(data-label);
    }

    /* Keep the KoalaSync row subtly highlighted, like on desktop. */
    .comparison-table td.check.highlight {
        background: oklch(0.68 0.13 150 / 0.08);
    }
}

@media (max-width: 600px) {
    html.theme-light .comparison-section {
        background: transparent;
    }

    html.theme-light .comparison-table tbody tr {
        background: #ffffff;
        border-color: oklch(0.20 0.025 140 / 0.1);
        box-shadow: 0 8px 20px oklch(0.20 0.025 140 / 0.08);
    }

    html.theme-light .comparison-table tbody tr:hover {
        background: #ffffff;
    }

    html.theme-light .comparison-table td {
        border-bottom-color: oklch(0.20 0.025 140 / 0.08);
    }

    html.theme-light .comparison-table td.feat-name {
        background: #ffffff;
    }

    html.theme-light .comparison-table td.check.highlight {
        background: oklch(0.52 0.12 150 / 0.07);
    }
}

/* --- Footnotes & Source Links --- */
.source-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 700;
    margin-left: 0.25rem;
    display: inline-flex;
    align-items: center;
    vertical-align: super;
    opacity: 0.82;
    transition: opacity 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.source-link:hover {
    opacity: 1;
    color: oklch(0.75 0.10 150);
    transform: translateY(-1px);
}

.table-footnotes {
    padding: 0.8rem 1.25rem;
    background: oklch(0.20 0.025 140 / 0.45);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.5;
    opacity: 0.65;
    transition: opacity 0.2s ease;
}

/* Link from the comparison table to the fuller guides/alternatives hub */
.comparison-guides-link {
    text-align: center;
    margin: 2rem 0 0;
}

.comparison-guides-link a {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: gap 0.2s ease, opacity 0.2s ease;
}

.comparison-guides-link a:hover {
    gap: 0.7rem;
    opacity: 0.85;
}

.table-footnotes:hover {
    opacity: 0.95;
}

.table-footnotes p {
    margin: 0;
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
}

.table-footnotes p:not(:last-child) {
    margin-bottom: 0.4rem;
}

.table-footnotes a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease, text-decoration 0.2s ease;
}

.table-footnotes a:hover {
    color: oklch(0.75 0.10 150);
    text-decoration: underline;
}

.table-footnotes sup {
    font-weight: 700;
    color: var(--accent);
}

@media (max-width: 768px) {
    .table-footnotes {
        padding: 0.75rem 1rem;
        font-size: 0.68rem;
    }
}