/* Shared scalable layout for category index pages (CloudToolStack-inspired) */
:root {
    --cc-accent: #2563eb;
    --cc-accent-soft: #dbeafe;
    --cc-bg: #f8fafc;
    --cc-surface: #ffffff;
    --cc-border: #e2e8f0;
    --cc-text: #0f172a;
    --cc-muted: #64748b;
    --cc-muted-strong: #475569;
}

body.category-page {
    background: var(--cc-bg);
    color: var(--cc-text);
}

body.category-page .container {
    max-width: 1280px;
}

body.category-page .left-section {
    padding-top: 8px;
}

body.category-page .sub-container {
    background: transparent;
    box-shadow: none;
    border: 0;
    overflow: visible;
}

body.category-page .category-header {
    text-align: left !important;
    margin: 8px 0 16px !important;
    padding: 20px 22px !important;
    border-radius: 14px !important;
    background: var(--cc-surface) !important;
    border: 1px solid var(--cc-border) !important;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06) !important;
}

body.category-page .category-header h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.2;
    font-size: 1.35rem;
    margin: 0;
}

body.category-page .category-header h1 i {
    color: var(--cc-accent);
}

body.category-page .category-header p {
    margin-top: 8px;
    max-width: 72ch;
    line-height: 1.45;
    font-size: 0.95rem;
    color: var(--cc-muted);
}

body.category-page .category-interlinks {
    margin: 0 0 14px;
    padding: 10px 12px;
    border: 1px solid var(--cc-border);
    border-radius: 12px;
    background: var(--cc-surface);
    color: var(--cc-muted-strong);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

body.category-page .category-interlinks strong {
    color: var(--cc-text);
    margin-right: 2px;
}

body.category-page .category-interlinks span[aria-hidden="true"] {
    display: none;
}

body.category-page .category-interlinks a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--cc-border);
    background: #fff;
    color: var(--cc-text);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

body.category-page .category-interlinks a:hover {
    background: var(--cc-accent-soft);
    border-color: #bfdbfe;
    color: #1d4ed8;
}

body.category-page .category-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 0 0 12px;
    padding: 8px 0;
}

body.category-page .category-toolbar-search {
    flex: 1 1 320px;
    min-width: 220px;
}

body.category-page .category-toolbar-search input {
    width: 100%;
    border: 1px solid var(--cc-border);
    border-radius: 10px;
    background: #fff;
    color: var(--cc-text);
    font-size: 0.95rem;
    padding: 10px 12px;
    outline: none;
}

body.category-page .category-toolbar-search input:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

body.category-page .category-toolbar-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cc-muted);
    font-size: 0.88rem;
    font-weight: 600;
}

body.category-page .category-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 14px;
}

body.category-page .category-filter {
    border: 1px solid var(--cc-border);
    background: #fff;
    color: var(--cc-muted-strong);
    border-radius: 999px;
    padding: 6px 11px;
    font-size: 0.8rem;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
}

body.category-page .category-filter:hover {
    background: var(--cc-accent-soft);
    border-color: #bfdbfe;
    color: #1d4ed8;
}

body.category-page .category-filter.is-active {
    background: var(--cc-accent);
    border-color: var(--cc-accent);
    color: #fff;
}

body.category-page .calculators-grid {
    display: flex !important;
    flex-direction: column;
    gap: 8px !important;
    margin-bottom: 24px;
}

body.category-page .calculator-card {
    display: flex !important;
    align-items: center;
    gap: 14px;
    border: 1px solid var(--cc-border) !important;
    border-radius: 12px !important;
    padding: 12px 14px !important;
    background: #fff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04) !important;
    transform: none !important;
    text-decoration: none;
    color: inherit;
}

body.category-page .calculator-card::before {
    display: none !important;
}

body.category-page .calculator-card:hover {
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08) !important;
    border-color: #cbd5f5 !important;
}

body.category-page .calculator-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 !important;
    background: var(--cc-accent-soft);
    color: var(--cc-accent);
    font-size: 1rem;
}

body.category-page .calculator-title {
    margin: 0;
    font-size: 0.98rem !important;
    line-height: 1.25;
    font-weight: 600;
    color: var(--cc-text);
}

body.category-page .calculator-description {
    margin: 4px 0 0;
    font-size: 0.86rem !important;
    line-height: 1.35;
    color: var(--cc-muted);
}

body.category-page .calculator-stats {
    margin-left: auto;
    border: 0 !important;
    padding: 0 !important;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

body.category-page .calculator-category {
    font-size: 0.74rem !important;
    padding: 5px 10px !important;
    border-radius: 999px !important;
    white-space: nowrap;
    background: var(--cc-accent-soft) !important;
    color: var(--cc-accent) !important;
    border: 1px solid #bfdbfe;
}

body.category-page .calculator-arrow {
    font-size: 0.82rem !important;
    color: var(--cc-muted);
}

body.category-page .category-empty-state {
    display: none;
    margin: 8px 0 14px;
    padding: 14px;
    border-radius: 12px;
    border: 1px dashed #cbd5f5;
    background: #f8fafc;
    color: var(--cc-muted-strong);
    font-size: 0.92rem;
}

body.category-page .category-empty-state.is-visible {
    display: block;
}

/* Category accents */
body.category-finance { --cc-accent: #2563eb; --cc-accent-soft: #dbeafe; }
body.category-health { --cc-accent: #16a34a; --cc-accent-soft: #dcfce7; }
body.category-math { --cc-accent: #7c3aed; --cc-accent-soft: #ede9fe; }
body.category-other { --cc-accent: #0ea5e9; --cc-accent-soft: #e0f2fe; }
body.category-biology { --cc-accent: #10b981; --cc-accent-soft: #d1fae5; }
body.category-chemistry { --cc-accent: #f59e0b; --cc-accent-soft: #fef3c7; }
body.category-construction { --cc-accent: #ea580c; --cc-accent-soft: #ffedd5; }
body.category-conversion { --cc-accent: #0f766e; --cc-accent-soft: #ccfbf1; }
body.category-ecology { --cc-accent: #22c55e; --cc-accent-soft: #dcfce7; }
body.category-everydaylife { --cc-accent: #0ea5e9; --cc-accent-soft: #e0f2fe; }
body.category-food { --cc-accent: #f97316; --cc-accent-soft: #ffedd5; }
body.category-physics { --cc-accent: #6366f1; --cc-accent-soft: #e0e7ff; }
body.category-sports { --cc-accent: #14b8a6; --cc-accent-soft: #ccfbf1; }
body.category-statistics { --cc-accent: #a855f7; --cc-accent-soft: #f3e8ff; }

@media (max-width: 900px) {
    body.category-page .calculator-card {
        flex-direction: column;
        align-items: flex-start;
    }

    body.category-page .calculator-stats {
        margin-left: 0;
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 640px) {
    body.category-page .category-header {
        padding: 18px !important;
    }

    body.category-page .calculator-card {
        padding: 12px !important;
    }

    body.category-page .calculator-title {
        font-size: 0.95rem !important;
    }

    body.category-page .calculator-description {
        font-size: 0.82rem !important;
    }
}