/* =============================================
   OnlineUstaz FAQ page (local/pages/faq.php)
   All rules scoped under .ou-faq.
   Mobile-first: 375 -> 640 -> 1024.
   ============================================= */

.ou-faq {
    --f-bg: #ffffff;
    --f-bg-alt: #f5f7fb;
    --f-surface: #ffffff;
    --f-ink: #14172b;
    --f-ink-2: #4b5168;
    --f-ink-3: #7c8299;
    --f-line: rgba(20, 23, 43, 0.09);
    --f-line-strong: rgba(20, 23, 43, 0.16);
    --f-blue: #2563eb;
    --f-blue-hover: #1d4ed8;
    --f-blue-soft: #eaf0ff;
    --f-blue-ink: #1e3fae;
    --f-gold-soft: #fff4dc;
    --f-shadow: 0 1px 2px rgba(20, 23, 43, 0.05), 0 8px 24px -12px rgba(20, 23, 43, 0.18);
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 4px 56px;
    color: var(--f-ink);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

body.theme-dark .ou-faq {
    --f-bg: #0f1219;
    --f-bg-alt: #141826;
    --f-surface: #1a1f2e;
    --f-ink: #eef0f6;
    --f-ink-2: #b4b9cc;
    --f-ink-3: #7f86a0;
    --f-line: rgba(238, 240, 246, 0.09);
    --f-line-strong: rgba(238, 240, 246, 0.18);
    --f-blue: #4f7cff;
    --f-blue-hover: #6b91ff;
    --f-blue-soft: rgba(79, 124, 255, 0.14);
    --f-blue-ink: #9db4ff;
    --f-gold-soft: rgba(232, 178, 58, 0.22);
    --f-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
}

.ou-faq h1,
.ou-faq h2,
.ou-faq h3 {
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--f-ink);
}

.ou-faq p { margin: 0; }
.ou-faq ul { margin: 0; padding-left: 20px; }
.ou-faq li + li { margin-top: 4px; }

.ou-faq a { color: var(--f-blue); text-decoration: none; }
.ou-faq a:hover { color: var(--f-blue-hover); text-decoration: underline; }

.ou-faq a:focus-visible,
.ou-faq button:focus-visible,
.ou-faq input:focus-visible,
.ou-faq textarea:focus-visible,
.ou-faq summary:focus-visible {
    outline: 2px solid var(--f-blue);
    outline-offset: 3px;
    border-radius: 6px;
}

.ou-faq mark {
    background: var(--f-gold-soft);
    color: inherit;
    border-radius: 3px;
    padding: 0 2px;
}

/* ---------- Hero ---------- */
.ou-faq-hero {
    background: var(--f-bg-alt);
    border: 1px solid var(--f-line);
    border-radius: 16px;
    padding: 28px 20px 14px;
    margin-top: 8px;
}

.ou-faq-crumb {
    font-size: 14px;
    color: var(--f-ink-3);
    margin-bottom: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ou-faq-crumb a { color: var(--f-ink-3); }

.ou-faq-title { font-size: 28px; font-weight: 700; }

.ou-faq-lead {
    margin-top: 10px;
    color: var(--f-ink-2);
    max-width: 60ch;
}

.ou-faq-search {
    margin-top: 24px;
    position: relative;
    max-width: 620px;
}

.ou-faq-search svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--f-ink-3);
    pointer-events: none;
}

.ou-faq-search input {
    width: 100%;
    height: 52px;
    padding: 0 48px;
    border: 1px solid var(--f-line-strong);
    border-radius: 12px;
    background: var(--f-surface);
    color: var(--f-ink);
    font: inherit;
    font-size: 16px;
    box-shadow: var(--f-shadow);
}

.ou-faq-search input::placeholder { color: var(--f-ink-3); }

.ou-faq-search-clear {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    color: var(--f-ink-3);
    cursor: pointer;
    border-radius: 8px;
    font-size: 22px;
    line-height: 1;
}

.ou-faq-search-clear[hidden] { display: none; }

.ou-faq-hint {
    margin-top: 10px;
    font-size: 14px;
    color: var(--f-ink-3);
    min-height: 20px;
}

/* ---------- Category nav: chips on mobile ---------- */
.ou-faq-nav {
    position: sticky;
    top: 65px; /* below the fixed site header */
    z-index: 5;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    margin: 0 -4px;
    padding: 10px 12px;
    border-radius: 0 0 16px 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    box-shadow: 0 0 0 rgba(20, 23, 43, 0);
    transition: box-shadow 250ms ease, background 250ms ease;
}

body.theme-dark .ou-faq-nav {
    background: rgba(15, 18, 25, 0.92);
}

/* The soft shadow appears only while the bar is actually pinned. */
.ou-faq-nav.is-stuck {
    box-shadow: 0 10px 24px -16px rgba(20, 23, 43, 0.35);
}

body.theme-dark .ou-faq-nav.is-stuck {
    box-shadow: 0 10px 24px -16px rgba(0, 0, 0, 0.7);
}

.ou-faq-nav::-webkit-scrollbar { display: none; }

.ou-faq-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 8px;
    width: max-content;
}

.ou-faq-nav li { margin: 0; }

.ou-faq-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid var(--f-line-strong);
    border-radius: 999px;
    color: var(--f-ink-2);
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
    transition: background 180ms, color 180ms, border-color 180ms;
}

.ou-faq-nav a:hover {
    text-decoration: none;
    border-color: var(--f-blue);
    color: var(--f-blue);
}

.ou-faq-nav a.active {
    background: var(--f-blue-soft);
    border-color: transparent;
    color: var(--f-blue-ink);
}

.ou-faq-count {
    font-variant-numeric: tabular-nums;
    font-size: 12px;
    font-weight: 600;
    color: var(--f-ink-3);
    background: var(--f-bg-alt);
    border-radius: 999px;
    padding: 2px 8px;
}

.ou-faq-nav a.active .ou-faq-count {
    background: rgba(255, 255, 255, 0.6);
    color: var(--f-blue-ink);
}

body.theme-dark .ou-faq-nav a.active .ou-faq-count { background: rgba(0, 0, 0, 0.25); }

/* ---------- Sections ---------- */
.ou-faq-cat {
    padding: 36px 0 8px;
    scroll-margin-top: 150px;
}

.ou-faq-cat[hidden] { display: none; }

.ou-faq-cat-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.ou-faq-cat-head h2 { font-size: 22px; font-weight: 700; }

.ou-faq-cat-sub {
    margin-top: 6px;
    color: var(--f-ink-2);
    font-size: 15px;
    max-width: 60ch;
}

.ou-faq-toggle-all {
    border: 0;
    background: transparent;
    color: var(--f-blue);
    font: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    min-height: 44px;
    padding: 0 8px;
    margin-right: -8px;
    flex-shrink: 0;
}

.ou-faq-toggle-all:hover { color: var(--f-blue-hover); text-decoration: underline; }

.ou-faq-qlist {
    border: 1px solid var(--f-line);
    border-radius: 14px;
    background: var(--f-surface);
    overflow: hidden;
    box-shadow: var(--f-shadow);
}

.ou-faq-q {
    border-top: 1px solid var(--f-line);
    scroll-margin-top: 158px;
    margin: 0;
}

.ou-faq-q:first-child { border-top: 0; }
.ou-faq-q[hidden] { display: none; }

.ou-faq-q summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 18px 18px 20px;
    font-weight: 600;
    font-size: 16px;
    line-height: 1.4;
    color: var(--f-ink);
    transition: background 150ms;
}

.ou-faq-q summary::-webkit-details-marker { display: none; }
.ou-faq-q summary::marker { content: ''; }

@media (hover: hover) {
    .ou-faq-q summary:hover { background: var(--f-bg-alt); }
}

.ou-faq-q[open] summary { background: var(--f-bg-alt); }

.ou-faq-chev {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    margin-left: auto;
    margin-top: -1px;
    border-radius: 999px;
    color: var(--f-ink-3);
    background: var(--f-bg-alt);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 200ms, background 150ms, color 150ms;
}

.ou-faq-q[open] .ou-faq-chev {
    transform: rotate(180deg);
    background: var(--f-blue-soft);
    color: var(--f-blue-ink);
}

.ou-faq-a {
    padding: 4px 20px 22px;
    color: var(--f-ink-2);
    font-size: 16px;
    max-width: 72ch;
}

.ou-faq-a p + p,
.ou-faq-a p + ul,
.ou-faq-a ul + p { margin-top: 10px; }

.ou-faq-a strong { color: var(--f-ink); font-weight: 600; }

/* ---------- Empty state ---------- */
.ou-faq-empty {
    padding: 48px 20px;
    text-align: center;
    color: var(--f-ink-2);
}

.ou-faq-empty[hidden] { display: none; }

.ou-faq-empty h3 { font-size: 18px; margin-bottom: 8px; }

/* ---------- Ask form ---------- */
.ou-faq-ask {
    margin-top: 48px;
    border: 1px solid var(--f-line);
    border-radius: 16px;
    background: var(--f-bg-alt);
    overflow: hidden;
}

.ou-faq-ask-info { padding: 28px 20px 8px; }

.ou-faq-ask-info h2 { font-size: 22px; }

.ou-faq-ask-info > p {
    color: var(--f-ink-2);
    margin-top: 8px;
    max-width: 52ch;
}

.ou-faq-ask-response {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-top: 16px;
    font-size: 14px;
    color: var(--f-ink-3);
}

.ou-faq-ask-response svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.ou-faq-ask-ways { margin-top: 20px; display: grid; gap: 4px; }

.ou-faq-ask-or {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--f-ink-3);
    margin-bottom: 4px;
}

.ou-faq-way {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    color: var(--f-ink);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.ou-faq-way:hover { color: var(--f-blue); text-decoration: none; }

.ou-faq-way svg {
    width: 20px;
    height: 20px;
    color: var(--f-blue);
    flex-shrink: 0;
}

.ou-faq-ask-formwrap {
    background: var(--f-surface);
    border-top: 1px solid var(--f-line);
    padding: 24px 20px;
}

.ou-faq-field { margin-bottom: 16px; }

.ou-faq-field label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--f-ink-2);
    margin-bottom: 6px;
}

.ou-faq-field input,
.ou-faq-field textarea {
    width: 100%;
    border: 1px solid var(--f-line-strong);
    border-radius: 10px;
    background: var(--f-bg);
    color: var(--f-ink);
    font: inherit;
    font-size: 16px;
    padding: 12px 14px;
    transition: border-color 150ms, box-shadow 150ms;
}

.ou-faq-field input { height: 48px; }

.ou-faq-field textarea { resize: vertical; min-height: 112px; }

.ou-faq-field input::placeholder,
.ou-faq-field textarea::placeholder { color: var(--f-ink-3); }

.ou-faq-field input:focus,
.ou-faq-field textarea:focus {
    outline: none;
    border-color: var(--f-blue);
    box-shadow: 0 0 0 3px var(--f-blue-soft);
}

.ou-faq-field input.is-error,
.ou-faq-field textarea.is-error { border-color: #dc2626; }

.ou-faq-field-error {
    display: none;
    font-size: 13px;
    color: #dc2626;
    margin-top: 6px;
}

.ou-faq-field-error.is-visible { display: block; }

.ou-faq-field-row { display: grid; gap: 0; }

.ou-faq-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    padding: 0 22px;
    border: 0;
    border-radius: 10px;
    background: var(--f-blue);
    color: #fff;
    font: inherit;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: background 150ms, opacity 150ms;
}

.ou-faq-submit:hover:not(:disabled) { background: var(--f-blue-hover); }

.ou-faq-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.ou-faq-form-ok {
    text-align: center;
    padding: 32px 16px;
}

.ou-faq-form-ok[hidden] { display: none; }

.ou-faq-form-ok-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: 999px;
    background: var(--f-blue-soft);
    color: var(--f-blue-ink);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ou-faq-form-ok-icon svg { width: 28px; height: 28px; }

.ou-faq-form-ok-text {
    font-weight: 500;
    color: var(--f-ink);
    max-width: 40ch;
    margin: 0 auto;
}

@media (prefers-reduced-motion: reduce) {
    .ou-faq * { transition: none !important; }
}

/* ---------- Phone: reclaim the theme side paddings (10px container + 20px wrapper) ---------- */
@media (max-width: 639.98px) {
    .ou-faq {
        /* Parent chain indents the content 30px from the screen edge; pull back to a 12px gutter. */
        margin-inline: -18px;
        padding-inline: 0;
    }

    .ou-faq-nav {
        margin-inline: -12px;
        padding-inline: 12px;
    }

    .ou-faq-nav.is-stuck {
        /* Pinned over content: slightly stronger glass so text under it never fights the chips. */
        background: rgba(255, 255, 255, 0.96);
    }

    body.theme-dark .ou-faq-nav.is-stuck {
        background: rgba(15, 18, 25, 0.96);
    }
}

/* ---------- Tablet ---------- */
@media (min-width: 640px) {
    .ou-faq { padding-bottom: 72px; }

    .ou-faq-hero { padding: 44px 32px 20px; }

    .ou-faq-title { font-size: 36px; }

    .ou-faq-field-row { grid-template-columns: 1fr 1fr; gap: 0 16px; }

    .ou-faq-ask {
        display: grid;
        grid-template-columns: 5fr 6fr;
        align-items: stretch;
    }

    .ou-faq-ask-info { padding: 32px 28px; }

    .ou-faq-ask-formwrap {
        border-top: 0;
        border-left: 1px solid var(--f-line);
        padding: 32px 28px;
    }
}

/* ---------- Desktop: left rail ---------- */
@media (min-width: 1024px) {
    .ou-faq-layout {
        display: grid;
        grid-template-columns: 248px minmax(0, 1fr);
        gap: 48px;
        align-items: start;
    }

    .ou-faq-nav {
        position: sticky;
        top: 90px;
        margin: 0;
        padding: 32px 0 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
        box-shadow: none;
        overflow: visible;
    }

    .ou-faq-nav.is-stuck,
    body.theme-dark .ou-faq-nav.is-stuck { box-shadow: none; background: transparent; }

    .ou-faq-nav ul { flex-direction: column; gap: 2px; width: auto; }

    .ou-faq-nav a {
        border: 0;
        border-radius: 10px;
        padding: 0 14px;
        width: 100%;
        justify-content: space-between;
        color: var(--f-ink-2);
    }

    .ou-faq-nav a:hover { background: var(--f-bg-alt); color: var(--f-ink); }

    .ou-faq-nav a.active {
        background: var(--f-blue-soft);
        color: var(--f-blue-ink);
        font-weight: 600;
    }

    .ou-faq-cat { padding: 32px 0 8px; scroll-margin-top: 90px; }
    .ou-faq-cat:first-child { padding-top: 32px; }

    .ou-faq-q { scroll-margin-top: 98px; }
    .ou-faq-q summary { padding: 20px 20px 20px 24px; }
    .ou-faq-a { padding: 4px 24px 24px; }
}