/* ============================================================
   THE REF PAGE
   A-Z Index
   ============================================================ */


/* ============================================================
   1. PAGE HEADER
   ============================================================ */

.az-page-header {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr) auto;

    align-items: stretch;

    padding: 0;
}


/* ------------------------------------------------------------
   Main
   ------------------------------------------------------------ */

.az-page-header-main {
    min-width: 0;

    padding:
        clamp(1.25rem, 2vw, 2rem);
}

.az-page-header-main h1 {
    margin:
        var(--space-2) 0 var(--space-3);
}

.az-page-lead {
    max-width: 720px;

    margin: 0;

    color: var(--color-text-muted);

    font-family: var(--font-mono);
    font-size: var(--text-sm);

    line-height: 1.55;
}


/* ------------------------------------------------------------
   Stats
   ------------------------------------------------------------ */

.az-page-header-meta {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(110px, 1fr));

    border-left:
        var(--border-width) solid var(--color-border);
}

.az-page-header-meta span {
    display: flex;
    flex-direction: column;
    justify-content: center;

    gap: 0.25rem;

    padding:
        var(--space-4) var(--space-5);

    color: var(--color-text-muted);

    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;

    letter-spacing: 0.055em;
    text-align: center;
    text-transform: uppercase;
}

.az-page-header-meta span+span {
    border-left:
        1px solid var(--color-border-soft);
}

.az-page-header-meta strong {
    color: var(--color-accent);

    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 850;

    line-height: 1;
}


/* ============================================================
   2. LETTER NAVIGATION
   ============================================================ */

.az-directory-nav {
    padding: 0;
}

.az-directory-nav .module-header-icon {
    background: var(--color-yellow);
    color: var(--color-accent-text);
}

.az-directory-keys {
    display: grid;

    grid-template-columns:
        repeat(14, minmax(0, 1fr));

    gap: var(--space-2);

    padding: var(--space-4);
}


/* ------------------------------------------------------------
   Keys
   ------------------------------------------------------------ */

.az-directory-key {
    display: grid;
    place-items: center;

    min-width: 0;
    min-height: 42px;

    padding: 0.4rem;

    border:
        1px solid var(--color-border-soft);

    background: var(--color-surface-2);
    color: var(--color-text-muted);

    box-shadow:
        2px 2px 0 var(--color-border-soft);

    font-family: var(--font-mono);
    font-size: var(--text-sm);
    font-weight: 800;

    line-height: 1;

    text-align: center;
    text-decoration: none;

    user-select: none;
}

.az-directory-key.is-active {
    border-color: var(--color-border);

    background: var(--color-surface);
    color: var(--color-text);

    box-shadow:
        2px 2px 0 var(--color-border);

    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.az-directory-key.is-active:hover,
.az-directory-key.is-active:focus-visible {
    background: var(--color-accent);
    color: var(--color-accent-text);

    text-decoration: none;
}

.az-directory-key.is-active:active {
    transform: translate(2px, 2px);

    box-shadow: none;
}

.az-directory-key.is-disabled {
    opacity: 0.4;

    pointer-events: none;
}


/* ============================================================
   3. DIRECTORY
   ============================================================ */

.az-directory {
    padding: 0;
}

.az-directory>.module-header .module-header-icon {
    background: var(--color-teal);
    color: #111;
}


/* ============================================================
   4. LETTER SECTION
   ============================================================ */

.az-letter-section {
    display: grid;

    grid-template-columns:
        100px minmax(0, 1fr);

    scroll-margin-top: 6rem;

    border-bottom:
        var(--border-width) solid var(--color-border);
}

.az-letter-section:last-of-type {
    border-bottom: 0;
}


/* ------------------------------------------------------------
   Letter rail
   ------------------------------------------------------------ */

.az-letter-header {
    display: flex;
    flex-direction: column;
    align-items: center;

    gap: var(--space-3);

    padding:
        var(--space-4) var(--space-3);

    border-right:
        var(--border-width) solid var(--color-border);

    background: var(--color-surface-2);
}

.az-letter {
    display: grid;
    place-items: center;

    width: 56px;
    height: 56px;

    border:
        var(--border-width) solid var(--color-border);

    background: var(--color-accent);
    color: var(--color-accent-text);

    box-shadow:
        3px 3px 0 var(--color-border);

    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;

    line-height: 1;
}

.az-letter-count {
    color: var(--color-text-muted);

    font-family: var(--font-mono);
    font-size: 0.58rem;
    font-weight: 800;

    letter-spacing: 0.055em;
    text-align: center;
    text-transform: uppercase;
}


/* ============================================================
   5. ENTRIES
   ============================================================ */

.az-entry-list {
    min-width: 0;
}


/* ------------------------------------------------------------
   Entry row
   ------------------------------------------------------------ */

.az-entry {
    display: grid;

    grid-template-columns:
        54px minmax(0, 1fr) auto 82px;

    align-items: stretch;

    min-width: 0;
    min-height: 94px;

    border-bottom:
        1px solid var(--color-border-soft);

    background: var(--color-surface);

    transition:
        background var(--transition-fast);
}

.az-entry:last-child {
    border-bottom: 0;
}

.az-entry:hover {
    background: var(--color-surface-2);
}


/* ------------------------------------------------------------
   Icon
   ------------------------------------------------------------ */

.az-entry-icon {
    display: grid;
    place-items: center;

    border-right:
        1px solid var(--color-border-soft);

    color: var(--color-text);

    font-size: 1.2rem;
}


/* ------------------------------------------------------------
   Content
   ------------------------------------------------------------ */

.az-entry-content {
    min-width: 0;

    padding:
        var(--space-3) var(--space-4);
}

.az-entry-content .eyebrow {
    display: block;

    margin-bottom: var(--space-1);
}

.az-entry-content h3 {
    margin:
        0 0 var(--space-1);

    font-size: clamp(1.1rem, 1.4vw, 1.35rem);

    line-height: 1;
}

.az-entry-content h3 a {
    color: var(--color-text);

    text-decoration: none;
}

.az-entry-content h3 a:hover,
.az-entry-content h3 a:focus-visible {
    color: var(--color-accent);
}

.az-entry-content p {
    margin: 0;

    color: var(--color-text-muted);

    font-family: var(--font-mono);
    font-size: var(--text-xs);

    line-height: 1.4;
}


/* ------------------------------------------------------------
   Category
   ------------------------------------------------------------ */

.az-entry>.category-badge {
    align-self: center;

    margin-inline: var(--space-3);
}


/* ------------------------------------------------------------
   Open
   ------------------------------------------------------------ */

.az-entry-open {
    display: flex;
    align-items: center;
    justify-content: center;

    gap: var(--space-2);

    min-width: 82px;

    border-left:
        1px solid var(--color-border-soft);

    color: var(--color-accent);

    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 800;

    text-decoration: none;
    text-transform: uppercase;
}

.az-entry-open:hover,
.az-entry-open:focus-visible {
    background: var(--color-accent);
    color: var(--color-accent-text);

    text-decoration: none;
}


/* ============================================================
   6. DIRECTORY FOOTER
   ============================================================ */

.az-directory-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: var(--space-4);

    padding:
        var(--space-3) var(--space-4);

    background: var(--color-surface-2);
}

.az-directory-footer .eyebrow {
    margin: 0;
}

.az-directory-footer a {
    display: inline-flex;
    align-items: center;

    gap: var(--space-2);

    color: var(--color-text);

    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 800;

    text-decoration: none;
    text-transform: uppercase;
}

.az-directory-footer a:hover,
.az-directory-footer a:focus-visible {
    color: var(--color-accent);
}


/* ============================================================
   7. RESPONSIVE
   ============================================================ */

@media (max-width: 1100px) {

    .az-directory-keys {
        grid-template-columns:
            repeat(9, minmax(0, 1fr));
    }
}


@media (max-width: 760px) {

    .az-page-header {
        grid-template-columns: 1fr;
    }

    .az-page-header-meta {
        border-top:
            var(--border-width) solid var(--color-border);

        border-left: 0;
    }

    .az-directory-keys {
        grid-template-columns:
            repeat(7, minmax(0, 1fr));
    }

    .az-letter-section {
        grid-template-columns: 70px minmax(0, 1fr);
    }

    .az-letter {
        width: 44px;
        height: 44px;

        font-size: 1.5rem;
    }

    .az-entry {
        grid-template-columns:
            46px minmax(0, 1fr) 68px;
    }

    .az-entry>.category-badge {
        display: none;
    }

    .az-entry-open {
        min-width: 68px;
    }
}


@media (max-width: 520px) {

    .az-directory-keys {
        grid-template-columns:
            repeat(5, minmax(0, 1fr));

        padding: var(--space-3);
    }

    .az-directory-key {
        min-height: 38px;

        font-size: var(--text-xs);
    }

    .az-letter-section {
        display: block;
    }

    .az-letter-header {
        flex-direction: row;
        justify-content: space-between;

        padding:
            var(--space-2) var(--space-3);

        border-right: 0;
        border-bottom:
            1px solid var(--color-border);
    }

    .az-letter {
        width: 38px;
        height: 38px;

        box-shadow:
            2px 2px 0 var(--color-border);

        font-size: 1.3rem;
    }

    .az-entry {
        grid-template-columns:
            42px minmax(0, 1fr) 48px;

        min-height: 82px;
    }

    .az-entry-content {
        padding:
            var(--space-3) var(--space-2);
    }

    .az-entry-content h3 {
        font-size: var(--text-base);
    }

    .az-entry-content p {
        display: none;
    }

    .az-entry-open {
        min-width: 48px;

        padding: 0;
    }

    .az-entry-open span {
        display: none;
    }

    .az-directory-footer {
        align-items: flex-start;
        flex-direction: column;

        gap: var(--space-2);
    }

    .az-footer-actions {
        align-items: flex-start;
        flex-direction: column;

        gap: var(--space-2);
    }
}



/* ------------------------------------------------------------
   A–Z footer actions
   ------------------------------------------------------------ */

.az-footer-actions {
    display: flex;
    align-items: flex-end;

    gap: var(--space-4);
}

.az-full-index-link {
    display: inline-flex;
    align-items: center;

    gap: var(--space-2);

    color: var(--color-text);

    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 800;

    text-decoration: none;
    text-transform: uppercase;

    white-space: nowrap;
}

.az-full-index-link i {
    font-size: 0.7rem;

    transition:
        transform var(--transition-fast);
}

.az-full-index-link:hover,
.az-full-index-link:focus-visible {
    color: var(--color-accent);

    text-decoration: none;
}

.az-full-index-link:hover i,
.az-full-index-link:focus-visible i {
    transform: translateX(3px);
}