/* ===========================================================================
 * Arabdown Child — UI Components
 * ---------------------------------------------------------------------------
 * Stylesheet خاص بمكوّنات UI التفاعلية:
 *   ① Search Modal (Cmd+K)
 *   ② Font Size Controller
 *   ③ Lazy Comments placeholder
 *   ④ Infinite Scroll loader/end markers
 *   ⑤ Toast notifications (للنسخ ونحوه)
 *
 * يُحمَّل بعد golden-ratio.css ويستخدم متغيراته.
 * =========================================================================== */


/* ============================================================
 * ① SEARCH MODAL
 * ============================================================ */

.ad-search-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-block-start: 8vh;
    padding-inline: 16px;
    background: rgba(15, 20, 25, 0.7);
    -webkit-backdrop-filter: blur(8px) saturate(1.2);
    backdrop-filter: blur(8px) saturate(1.2);
    opacity: 0;
    transition: opacity 0.18s ease;
    overflow-y: auto;
}

.ad-search-modal.is-open {
    display: flex;
    opacity: 1;
}

.ad-search-modal__panel {
    inline-size: 100%;
    max-inline-size: 640px;
    background: #fff;
    border-radius: 16px;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.25),
        0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transform: translateY(-12px);
    transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ad-search-modal.is-open .ad-search-modal__panel {
    transform: translateY(0);
}

/* Input bar */
.ad-search-modal__bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-block-end: 1px solid #f0f0f0;
    background: #fff;
    position: relative;
}

.ad-search-modal__icon {
    flex-shrink: 0;
    inline-size: 22px;
    block-size: 22px;
    color: var(--ad-c-primary-600, #7aa000);
    pointer-events: none;
}

.ad-search-modal__input {
    flex: 1;
    border: 0;
    outline: 0;
    font-size: 18px;
    font-family: inherit;
    background: transparent;
    color: #111;
    padding: 4px 0;
    direction: rtl;
}
.ad-search-modal__input::placeholder {
    color: #9ca3af;
}

.ad-search-modal__close {
    flex-shrink: 0;
    inline-size: 32px;
    block-size: 32px;
    border: 0;
    background: #f3f4f6;
    color: #4b5563;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: background 0.15s ease;
}
.ad-search-modal__close:hover {
    background: #e5e7eb;
}

.ad-search-modal__kbd {
    flex-shrink: 0;
    padding: 3px 8px;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 5px;
    font-size: 11px;
    font-family: "Cascadia Code", Consolas, monospace;
    color: #6b7280;
    direction: ltr;
}

/* Results container */
.ad-search-modal__results {
    max-block-size: 60vh;
    overflow-y: auto;
    background: #fafafa;
}

.ad-search-modal__hint {
    padding: 32px 20px;
    text-align: center;
    color: #9ca3af;
    font-size: 14px;
}

.ad-search-modal__section-label {
    display: block;
    padding: 10px 20px 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
    background: #fafafa;
}

.ad-search-modal__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ad-search-modal__item {
    border-block-end: 1px solid #f0f0f0;
}
.ad-search-modal__item:last-child {
    border-block-end: 0;
}

.ad-search-modal__link {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 14px;
    padding: 12px 20px;
    text-decoration: none !important;
    color: inherit;
    background: transparent;
    transition: background 0.12s ease;
    align-items: center;
}
.ad-search-modal__link:hover,
.ad-search-modal__link.is-active {
    background: rgba(141, 182, 0, 0.08);
}
.ad-search-modal__link.is-active {
    box-shadow: inset 4px 0 0 var(--ad-c-primary-500, #8db600);
}

.ad-search-modal__thumb {
    inline-size: 64px;
    block-size: 48px;
    border-radius: 6px;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    flex-shrink: 0;
}
.ad-search-modal__thumb img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    display: block;
}

.ad-search-modal__body {
    min-inline-size: 0;
}
.ad-search-modal__title {
    font-size: 14px;
    font-weight: 700;
    color: #111;
    line-height: 1.4;
    margin: 0 0 4px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.ad-search-modal__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: #6b7280;
    flex-wrap: wrap;
}
.ad-search-modal__cat {
    display: inline-block;
    padding: 1px 7px;
    background: rgba(141, 182, 0, 0.12);
    color: var(--ad-c-primary-700, #6a8a00);
    border-radius: 3px;
    font-weight: 700;
    font-size: 10px;
}
.ad-search-modal__excerpt {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
    margin: 4px 0 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Recent searches */
.ad-search-modal__recent-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    cursor: pointer;
    transition: background 0.12s ease;
    color: #4b5563;
    font-size: 14px;
}
.ad-search-modal__recent-item:hover {
    background: #f3f4f6;
}
.ad-search-modal__recent-icon {
    color: #9ca3af;
    flex-shrink: 0;
}

/* Loading spinner */
.ad-search-modal__loading {
    padding: 32px;
    text-align: center;
    color: #6b7280;
}
.ad-search-modal__spinner {
    inline-size: 24px;
    block-size: 24px;
    border: 2px solid #e5e7eb;
    border-block-start-color: var(--ad-c-primary-500, #8db600);
    border-radius: 50%;
    animation: ad-spin 0.7s linear infinite;
    margin-inline: auto;
    margin-block-end: 8px;
}
@keyframes ad-spin {
    to { transform: rotate(360deg); }
}

/* Footer hint */
.ad-search-modal__footer {
    padding: 10px 20px;
    background: #fafafa;
    border-block-start: 1px solid #f0f0f0;
    font-size: 11px;
    color: #6b7280;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.ad-search-modal__footer-key {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Mobile adjustments */
@media (max-width: 480px) {
    .ad-search-modal {
        padding: 0;
        padding-block-start: 0;
        align-items: stretch;
    }
    .ad-search-modal__panel {
        max-inline-size: 100%;
        border-radius: 0;
        block-size: 100dvh;
        display: flex;
        flex-direction: column;
    }
    .ad-search-modal__results {
        max-block-size: none;
        flex: 1;
    }
    .ad-search-modal__kbd {
        display: none;
    }
}

/* Trigger button (يُحقَن في القائمة العلوية أو يستخدم data-trigger) */
[data-arabdown-search-trigger] {
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}


/* ============================================================
 * ② FONT SIZE CONTROLLER
 * ============================================================ */

.ad-fontsize {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: #f3f4f6;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.ad-fontsize__btn {
    border: 0;
    background: transparent;
    color: #6b7280;
    padding: 6px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    line-height: 1;
    transition: all 0.15s ease;
    min-block-size: 32px;
    min-inline-size: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.ad-fontsize__btn[data-size="sm"] { font-size: 12px; }
.ad-fontsize__btn[data-size="md"] { font-size: 14px; }
.ad-fontsize__btn[data-size="lg"] { font-size: 16px; }

.ad-fontsize__btn:hover {
    color: #111;
}
.ad-fontsize__btn[aria-pressed="true"] {
    background: #fff;
    color: var(--ad-c-primary-700, #6a8a00);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* تأثير حجم الخط على article-body فقط */
html[data-font-size="sm"] .article-body {
    font-size: 0.95em;
}
html[data-font-size="lg"] .article-body {
    font-size: 1.15em;
    line-height: 1.95;
}


/* ============================================================
 * ③ LAZY COMMENTS PLACEHOLDER
 * ============================================================ */

.ad-comments-placeholder {
    padding: 32px 20px;
    text-align: center;
    background: linear-gradient(135deg, #fafafa, #f3f4f6);
    border-radius: 12px;
    margin-block: 32px 16px;
    border: 1px dashed #e5e7eb;
}
.ad-comments-placeholder__icon {
    font-size: 32px;
    color: #9ca3af;
    margin-block-end: 8px;
}
.ad-comments-placeholder__text {
    font-size: 14px;
    color: #6b7280;
    margin: 0;
}

.ad-comments-loading {
    text-align: center;
    padding: 24px;
    color: #6b7280;
    font-size: 14px;
}


/* ============================================================
 * ④ INFINITE SCROLL — loader + sentinel
 * ============================================================ */

.ad-inf-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 32px 20px;
    color: #6b7280;
    font-size: 14px;
}
.ad-inf-loader__spinner {
    inline-size: 18px;
    block-size: 18px;
    border: 2px solid #e5e7eb;
    border-block-start-color: var(--ad-c-primary-500, #8db600);
    border-radius: 50%;
    animation: ad-spin 0.7s linear infinite;
}

.ad-inf-end {
    text-align: center;
    padding: 24px 16px;
    color: #9ca3af;
    font-size: 13px;
    font-style: italic;
}

.ad-inf-error {
    text-align: center;
    padding: 24px 16px;
    background: #fef2f2;
    color: #b91c1c;
    border-radius: 8px;
    margin: 16px 0;
}

.ad-inf-loadmore {
    display: block;
    margin: 24px auto;
    padding: 12px 32px;
    background: var(--ad-c-primary-500, #8db600);
    color: #fff;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    font-size: 14px;
    transition: background 0.2s ease;
}
.ad-inf-loadmore:hover {
    background: var(--ad-c-primary-700, #6a8a00);
}


/* ============================================================
 * ⑤ TOAST NOTIFICATIONS
 * ============================================================ */

.ad-toast {
    position: fixed;
    inset-block-end: 24px;
    inset-inline-start: 50%;
    transform: translateX(-50%) translateY(8px);
    z-index: 10000;
    padding: 10px 16px;
    background: rgba(15, 20, 25, 0.92);
    color: #fff;
    border-radius: 8px;
    font-size: 13px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}
.ad-toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* ============================================================
 * ⑥ Reduced motion support
 * ============================================================ */

@media (prefers-reduced-motion: reduce) {
    .ad-search-modal,
    .ad-search-modal__panel,
    .ad-search-modal__link,
    .ad-fontsize__btn,
    .ad-toast {
        transition: none !important;
        animation: none !important;
    }
    .ad-search-modal__spinner,
    .ad-inf-loader__spinner {
        animation: none !important;
    }
}


/* ============================================================
 * ⑦ STICKY SHARE BAR — أسفل الشاشة، أثناء قراءة المقال
 * ------------------------------------------------------------
 * يظهر بعد 10% من بداية المقال
 * يختفي عند الوصول لقسم "اقرأ أيضًا" أو نهاية المقال
 * 5 منصات: Twitter/X, Facebook, WhatsApp, Telegram, Copy Link
 * ============================================================ */

.ad-share-sticky {
    position: fixed;
    inset-block-end: 0;
    inset-inline: 0;
    z-index: 90;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.96);
    -webkit-backdrop-filter: blur(10px) saturate(1.2);
    backdrop-filter: blur(10px) saturate(1.2);
    border-block-start: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.ad-share-sticky.is-visible {
    transform: translateY(0);
}

.ad-share-sticky__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    max-inline-size: 640px;
    margin-inline: auto;
}

.ad-share-sticky__label {
    font-size: 13px;
    color: #4b5563;
    font-weight: 600;
    margin-inline-end: 4px;
    flex-shrink: 0;
}

.ad-share-sticky__list {
    display: flex;
    align-items: center;
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.ad-share-sticky__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 42px;
    block-size: 42px;
    border-radius: 50%;
    border: 0;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
    flex-shrink: 0;
}
.ad-share-sticky__btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
}
.ad-share-sticky__btn:active {
    transform: scale(0.95);
}
.ad-share-sticky__btn svg {
    inline-size: 20px;
    block-size: 20px;
    fill: currentColor;
}

.ad-share-sticky__btn--x         { background: #000; }
.ad-share-sticky__btn--facebook  { background: #1877f2; }
.ad-share-sticky__btn--whatsapp  { background: #25d366; }
.ad-share-sticky__btn--telegram  { background: #0088cc; }
.ad-share-sticky__btn--copy      { background: #4b5563; }
.ad-share-sticky__btn--copy.is-copied {
    background: var(--ad-c-primary-500, #8db600);
}

@media (max-width: 480px) {
    .ad-share-sticky {
        padding: 8px 12px calc(8px + env(safe-area-inset-bottom, 0px));
    }
    .ad-share-sticky__inner {
        gap: 8px;
    }
    .ad-share-sticky__list {
        gap: 8px;
    }
    .ad-share-sticky__btn {
        inline-size: 38px;
        block-size: 38px;
    }
    .ad-share-sticky__btn svg {
        inline-size: 18px;
        block-size: 18px;
    }
    .ad-share-sticky__label {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ad-share-sticky {
        transition: none !important;
    }
    .ad-share-sticky__btn {
        transition: none !important;
    }
}