/*
 * Sanatan Sarita — assets/css/single.css
 *
 * Extra styles loaded ONLY on single post pages.
 * Keeps main.css lean by isolating single-post-specific styles here.
 * Enqueued conditionally in enqueue.php: if ( is_singular( 'post' ) )
 *
 * Covers:
 * - Reading progress bar polish
 * - Drop cap first letter
 * - Inline shloka callout block
 * - Sticky share sidebar (desktop)
 * - Table of contents
 * - Post series navigation
 * - Sanskrit / Devanagari special blocks
 */

/* ── Reading Progress Bar ────────────────────────────────── */

#ss-reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(
        to right,
        var(--ss-primary),
        var(--ss-accent)
    );
    z-index: 99999;
    transition: width 0.1s linear;
    pointer-events: none;
    border-radius: 0 2px 2px 0;
}

/* ── Drop Cap — First paragraph first letter ─────────────── */

.ss-single-content > p:first-of-type::first-letter {
    float: left;
    font-family: 'Tiro Devanagari Hindi', serif;
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 0.75;
    color: var(--ss-primary);
    margin-right: 0.125rem;
    margin-top: 0.25rem;
    padding: 0 0.1em 0.1em 0;
}

/* ── Inline Shloka Callout ───────────────────────────────── */
/* Use: <div class="ss-inline-shloka">...</div> in content */

.ss-inline-shloka {
    background: #FFFBEB;
    border: 1px solid #FDE68A;
    border-left: 6px solid var(--ss-accent);
    border-radius: 0.75rem;
    padding: 1.75rem 2rem;
    margin: 2.5rem 0;
    position: relative;
}

.ss-inline-shloka::before {
    content: '\201C';
    position: absolute;
    top: -0.5rem;
    left: 1rem;
    font-family: 'Tiro Devanagari Hindi', serif;
    font-size: 5rem;
    color: var(--ss-accent);
    opacity: 0.3;
    line-height: 1;
    pointer-events: none;
}

.ss-inline-shloka-text {
    font-family: 'Tiro Devanagari Hindi', serif;
    font-size: 1.375rem;
    font-style: italic;
    color: #78350F;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.ss-inline-shloka-source {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #B45309;
}

/* ── Sanskrit / Devanagari text class ───────────────────── */

.ss-sanskrit {
    font-family: 'Tiro Devanagari Hindi', serif;
    font-size: 1.25em;
    color: var(--ss-primary);
    line-height: 1.9;
}

/* ── Table of Contents ───────────────────────────────────── */

.ss-toc {
    background: var(--ss-bg-soft);
    border: 1px solid var(--ss-border);
    border-radius: var(--ss-radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.ss-toc-title {
    font-size: var(--ss-text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ss-text-muted);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.ss-toc-title svg {
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.ss-toc.ss-toc-collapsed .ss-toc-title svg {
    transform: rotate(180deg);
}

.ss-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.ss-toc.ss-toc-collapsed .ss-toc-list {
    display: none;
}

.ss-toc-list li {
    padding-left: 0;
}

.ss-toc-list li.ss-toc-h3 {
    padding-left: 1.25rem;
}

.ss-toc-list a {
    font-size: var(--ss-text-sm);
    font-weight: 600;
    color: var(--ss-text-muted);
    text-decoration: none;
    line-height: 1.4;
    transition: var(--ss-transition);
    display: block;
    padding: 0.2rem 0;
}

.ss-toc-list a:hover,
.ss-toc-list a.ss-toc-active {
    color: var(--ss-primary);
    padding-left: 0.375rem;
}

.ss-toc-list a.ss-toc-active {
    font-weight: 700;
}

/* ── Sticky Share Sidebar (large screens) ────────────────── */

.ss-sticky-share {
    position: fixed;
    left: max(1rem, calc(50vw - 520px));
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.ss-sticky-share.ss-visible {
    opacity: 1;
    visibility: visible;
}

.ss-sticky-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--ss-radius-full);
    border: 1px solid var(--ss-border);
    background: var(--ss-bg-white);
    color: #6B7280;
    text-decoration: none;
    cursor: pointer;
    transition: var(--ss-transition);
    box-shadow: var(--ss-shadow-sm);
}

.ss-sticky-share-btn:hover {
    box-shadow: var(--ss-shadow-md);
    transform: scale(1.1);
}

.ss-sticky-share-fb:hover    { background: #1877F2; border-color: #1877F2; color: white; }
.ss-sticky-share-tw:hover    { background: #000000; border-color: #000000; color: white; }
.ss-sticky-share-wa:hover    { background: #25D366; border-color: #25D366; color: white; }
.ss-sticky-share-copy:hover  { background: var(--ss-primary); border-color: var(--ss-primary); color: white; }

/* ── Post Series Block ───────────────────────────────────── */

.ss-post-series {
    background: linear-gradient(135deg, #FFF7ED, #FFFBEB);
    border: 1px solid #FDE68A;
    border-radius: var(--ss-radius-lg);
    padding: 1.75rem;
    margin: 2.5rem 0;
}

.ss-post-series-label {
    font-size: var(--ss-text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #B45309;
    margin-bottom: 0.5rem;
}

.ss-post-series-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #78350F;
    margin-bottom: 1.25rem;
}

.ss-post-series-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ss-post-series-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: var(--ss-text-sm);
}

.ss-post-series-list li.ss-series-current {
    font-weight: 700;
    color: var(--ss-primary);
}

.ss-post-series-num {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--ss-accent);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

.ss-series-current .ss-post-series-num {
    background: var(--ss-primary);
}

.ss-post-series-list a {
    color: #92400E;
    text-decoration: none;
    line-height: 1.4;
    transition: var(--ss-transition);
}

.ss-post-series-list a:hover {
    color: var(--ss-primary);
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 1280px) {
    .ss-sticky-share {
        display: none;
    }
}

@media (max-width: 768px) {
    /* Remove drop cap on mobile — too large for small screens */
    .ss-single-content > p:first-of-type::first-letter {
        float: none;
        font-size: inherit;
        font-weight: inherit;
        color: inherit;
        margin: 0;
        padding: 0;
    }

    .ss-inline-shloka {
        padding: 1.25rem;
    }

    .ss-inline-shloka-text {
        font-size: 1.125rem;
    }
}