/* ============================================================================
   Developer Center — واجهة 3D Hub
   ----------------------------------------------------------------------------
   بديل التبويبات المسطّحة: مشهد ثلاثي الأبعاد من كروت تنقلب عند التمرير
   لتعرض ما بداخل كل قسم، والنقر يدخل القسم نفسه.

   ⚠ لا يوجد لون جديد في هذا الملف إطلاقًا. كل شيء مشتق من متغيّرات نظام
   التصميم القائم (--color-accent / --color-surface / --color-border ...)
   عبر color-mix، فيتبع الوضع الفاتح والداكن تلقائيًا.

   إمكانية الوصول مبنية في الأساس لا مضافة لاحقًا:
     • الكارت عنصر role="button" يستقبل التركيز، ويتقلب بـ :focus-within أيضًا.
     • على الأجهزة التي لا تدعم hover تُعرض الوجهتان فوق بعض (بلا قلب).
     • prefers-reduced-motion يوقف القلب والميلان ويستبدلهما بتلاشٍ بسيط.
   ============================================================================ */

/* ==================== زر ملف التوثيق (داخل رأس الصفحة) ==================== */

.page-doc-btn {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1.1rem;
    padding: 0.7rem 1.15rem;
    border-radius: 0.8rem;
    text-decoration: none;
    font-family: inherit;
    font-weight: 800;
    font-size: 0.9rem;
    color: #fff;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
    transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1), background 0.2s, box-shadow 0.2s;
}
.page-doc-btn:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-2px);
    box-shadow: var(--elev-2);
}
.page-doc-btn:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.page-doc-btn small {
    font-size: 0.72rem;
    font-weight: 600;
    opacity: 0.85;
    padding-inline-start: 0.6rem;
    border-inline-start: 1px solid rgba(255, 255, 255, 0.3);
}
@media (max-width: 480px) {
    .page-doc-btn small { border-inline-start: none; padding-inline-start: 0; width: 100%; }
}

/* ==================== المشهد ==================== */

.hub {
    perspective: 1600px;
    perspective-origin: 50% 40%;
    margin-bottom: 1.75rem;
}

.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    transform-style: preserve-3d;
    /* الميلان يأتي من الماوس عبر JS، وهذه قيم السكون */
    transform: rotateX(var(--hub-rx, 0deg)) rotateY(var(--hub-ry, 0deg));
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}

/* ==================== الكارت ==================== */

.hub-card {
    position: relative;
    height: 260px;
    perspective: 1400px;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
    font-family: inherit;
    text-align: start;
    /* دخول متدرّج: كل كارت يصعد من العمق بتأخير مختلف */
    animation: hubCardIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}
.hub-card:nth-child(1) { animation-delay: 0.05s; }
.hub-card:nth-child(2) { animation-delay: 0.14s; }
.hub-card:nth-child(3) { animation-delay: 0.23s; }

@keyframes hubCardIn {
    from { opacity: 0; transform: translateY(28px) translateZ(-160px) rotateX(-14deg); }
    to   { opacity: 1; transform: none; }
}

.hub-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition:
        transform 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.4s ease;
    border-radius: 1.25rem;
}

/* القلب: hover للفأرة، focus-within للوحة المفاتيح، is-flipped للمس */
.hub-card:hover .hub-card-inner,
.hub-card:focus-visible .hub-card-inner,
.hub-card.is-flipped .hub-card-inner {
    transform: rotateY(180deg) translateZ(24px);
    box-shadow: 0 28px 60px color-mix(in srgb, var(--color-accent) 22%, transparent);
}

/* اتجاه الصفحة RTL: القلب يبدأ من نفس الجهة بصريًا */
[dir="rtl"] .hub-card:hover .hub-card-inner,
[dir="rtl"] .hub-card:focus-visible .hub-card-inner,
[dir="rtl"] .hub-card.is-flipped .hub-card-inner {
    transform: rotateY(-180deg) translateZ(24px);
}

.hub-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 1.25rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--elev-1);
}

.hub-face-back {
    transform: rotateY(180deg);
    background: color-mix(in srgb, var(--color-accent) 6%, var(--color-surface));
    border-color: color-mix(in srgb, var(--color-accent) 30%, var(--color-border));
}
[dir="rtl"] .hub-face-back { transform: rotateY(-180deg); }

/* ==================== الوجه الأمامي ==================== */

/* توهّج يتحرّك خلف الأيقونة — يعطي عمقًا دون أي لون جديد */
.hub-glow {
    position: absolute;
    top: -30%;
    inset-inline-start: -20%;
    width: 160%;
    height: 160%;
    pointer-events: none;
    background: radial-gradient(
        circle at 30% 25%,
        color-mix(in srgb, var(--color-accent) 20%, transparent) 0%,
        transparent 60%
    );
    opacity: 0.75;
    animation: hubGlowDrift 9s ease-in-out infinite alternate;
}
@keyframes hubGlowDrift {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(12%, 10%, 0) scale(1.15); }
}

.hub-icon {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--color-accent) 85%, #000 0%),
        color-mix(in srgb, var(--color-accent) 55%, var(--color-surface)));
    box-shadow: 0 8px 20px color-mix(in srgb, var(--color-accent) 32%, transparent);
    margin-bottom: 1rem;
    /* طبقة ترتفع عن سطح الكارت فتظهر كأنها طافية */
    transform: translateZ(40px);
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.hub-card:hover .hub-icon { transform: translateZ(60px) rotateZ(-6deg); }

.hub-title {
    position: relative;
    margin: 0 0 0.35rem;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: 0.01em;
    transform: translateZ(26px);
}
.hub-desc {
    position: relative;
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    transform: translateZ(16px);
}

.hub-meta {
    position: relative;
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    transform: translateZ(20px);
}
.hub-count {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.3rem 0.75rem;
    border-radius: 2rem;
    background: color-mix(in srgb, var(--color-accent) 12%, var(--color-surface));
    color: color-mix(in srgb, var(--color-accent) 85%, var(--color-text));
    border: 1px solid color-mix(in srgb, var(--color-accent) 26%, transparent);
}
.hub-hint {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-inline-start: auto;
    opacity: 0.8;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* ==================== الوجه الخلفي ==================== */

.hub-back-title {
    margin: 0 0 0.75rem;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.hub-list {
    margin: 0 0 0.9rem;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    overflow-y: auto;
}
.hub-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--color-text);
    padding: 0.35rem 0.5rem;
    border-radius: 0.5rem;
    background: color-mix(in srgb, var(--color-surface) 70%, transparent);
}
.hub-list li svg { color: var(--color-accent); flex-shrink: 0; }
.hub-list li .hub-list-count {
    margin-inline-start: auto;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--color-text-secondary);
}

.hub-enter {
    margin-top: auto;
    width: 100%;
    justify-content: center;
}

/* ==================== الشريط المضغوط بعد الدخول ==================== */

.hub-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding: 0.5rem 0.6rem;
    border-radius: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--elev-1);
    animation: hubBarIn 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes hubBarIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }

.hub-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: none;
    background: var(--color-muted);
    color: var(--color-text);
    font-family: inherit;
    font-weight: 700;
    font-size: 0.83rem;
    padding: 0.5rem 0.9rem;
    border-radius: 0.7rem;
    cursor: pointer;
    transition: background 0.15s, transform 0.15s;
}
.hub-back-btn:hover { background: var(--color-border); transform: translateX(2px); }

.hub-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid transparent;
    background: transparent;
    color: var(--color-text-secondary);
    font-family: inherit;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 0.5rem 0.95rem;
    border-radius: 0.7rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.hub-chip:hover { background: var(--color-muted); color: var(--color-text); }
.hub-chip.active {
    background: var(--color-accent);
    color: #fff;
    box-shadow: 0 6px 16px color-mix(in srgb, var(--color-accent) 35%, transparent);
    transform: translateY(-1px);
}
.hub-chip .tab-count {
    font-size: 0.66rem;
    font-weight: 800;
    padding: 0.05rem 0.4rem;
    border-radius: 2rem;
    background: var(--color-muted);
    color: var(--color-text-secondary);
    min-width: 1.1rem;
    text-align: center;
}
.hub-chip.active .tab-count { background: rgba(255, 255, 255, 0.25); color: #fff; }

/* دخول المحتوى بعد اختيار قسم */
.dev-section.active { animation: sectionIn 0.4s cubic-bezier(0.22, 1, 0.36, 1); }
@keyframes sectionIn {
    from { opacity: 0; transform: translateY(14px) scale(0.995); }
    to   { opacity: 1; transform: none; }
}

/* ==================== اللمس: لا hover، فلا قلب تلقائي ==================== */

@media (hover: none) {
    .hub-card { height: auto; }
    .hub-card-inner { transform: none !important; box-shadow: none; }
    .hub-face {
        position: relative;
        inset: auto;
        backface-visibility: visible;
        -webkit-backface-visibility: visible;
        transform: none !important;
    }
    /* الوجهان يظهران فوق بعض: كل المعلومات متاحة بلا أي تفاعل */
    .hub-face-front { border-radius: 1.25rem 1.25rem 0 0; border-bottom: none; }
    .hub-face-back { border-radius: 0 0 1.25rem 1.25rem; }
    .hub-icon, .hub-title, .hub-desc, .hub-meta { transform: none; }
    .hub-hint { display: none; }
}

/* ==================== احترام تقليل الحركة ==================== */

@media (prefers-reduced-motion: reduce) {
    .hub-grid { transform: none !important; transition: none; }
    .hub-card { animation: none; }
    .hub-card-inner { transition: none; transform: none !important; }
    .hub-glow { animation: none; }
    .hub-icon { transition: none; transform: none; }
    .dev-section.active { animation: none; }

    /* بديل القلب: تلاشٍ بسيط للوجه الخلفي فوق الأمامي */
    .hub-face { backface-visibility: visible; -webkit-backface-visibility: visible; }
    .hub-face-back { transform: none !important; opacity: 0; transition: opacity 0.2s linear; }
    .hub-card:hover .hub-face-back,
    .hub-card:focus-within .hub-face-back,
    .hub-card.is-flipped .hub-face-back { opacity: 1; }
}

/* ==================== الشاشات الصغيرة ==================== */

@media (max-width: 640px) {
    .hub { perspective: none; }
    .hub-grid { grid-template-columns: 1fr; gap: 0.9rem; transform: none !important; }
    .hub-card { height: auto; }
    .hub-face { position: relative; inset: auto; backface-visibility: visible; transform: none !important; }
    .hub-face-front { border-radius: 1.25rem 1.25rem 0 0; border-bottom: none; }
    .hub-face-back { border-radius: 0 0 1.25rem 1.25rem; }
    .hub-card-inner { transform: none !important; }
    .hub-icon, .hub-title, .hub-desc, .hub-meta { transform: none; }
    .hub-hint { display: none; }
    .hub-bar { padding: 0.4rem; }
    .hub-chip { font-size: 0.8rem; padding: 0.45rem 0.7rem; }
}

/* ============================================================================
   لوحة الأوامر (Ctrl/⌘+K)
   ----------------------------------------------------------------------------
   بلا أي لون جديد: كل شيء مشتق من متغيّرات نظام التصميم عبر color-mix، فتتبع
   اللوحة السمة الفاتحة والداكنة تلقائيًا كبقية الصفحة.
   ========================================================================== */

.palette-trigger {
    display: inline-flex; align-items: center; gap: 0.5rem;
    margin-inline-start: auto;
    padding: 0.45rem 0.8rem;
    font-family: inherit; font-size: 0.82rem; font-weight: 600;
    color: rgba(255, 255, 255, 0.92);
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 0.6rem;
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.palette-trigger:hover { background: rgba(255, 255, 255, 0.22); border-color: rgba(255, 255, 255, 0.45); }
.palette-trigger:active { transform: translateY(1px); }
.palette-trigger:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.palette-trigger kbd {
    font-family: inherit; font-size: 0.68rem; font-weight: 700;
    padding: 0.1rem 0.35rem; border-radius: 0.3rem;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
}
@media (max-width: 720px) {
    .palette-trigger span { display: none; }
    .palette-trigger kbd { display: none; }
    .palette-trigger { padding: 0.45rem; }
}

/* ‎`display: flex` هنا أقوى من قاعدة `[hidden] { display: none }` في متصفّح
   المستخدم (قواعد الصفحة تسبق قواعد المتصفّح)، فتبقى الطبقة معروضة بعرض
   شفّاف تغطّي الصفحة كلها وتبتلع كل نقرة بعد أول إغلاق. الإخفاء الصريح أدناه
   ليس احتياطًا — بدونه تتجمّد الصفحة بالكامل. */
.cmdk[hidden] { display: none; }

.cmdk {
    position: fixed; inset: 0; z-index: 1200;
    display: flex; align-items: flex-start; justify-content: center;
    padding: clamp(3rem, 12vh, 9rem) 1rem 1rem;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 0.15s ease;
}
.cmdk.is-open { opacity: 1; }

.cmdk-panel {
    width: min(680px, 100%);
    max-height: min(70vh, 560px);
    display: flex; flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    box-shadow: var(--elev-3);
    overflow: hidden;
    transform: translateY(-8px) scale(0.985);
    transition: transform 0.18s cubic-bezier(0.2, 0.9, 0.3, 1);
}
.cmdk.is-open .cmdk-panel { transform: none; }

.cmdk-search {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}
.cmdk-search input {
    flex: 1; min-width: 0;
    border: none; background: transparent; outline: none;
    font-family: inherit; font-size: 0.95rem; color: var(--color-text);
}
.cmdk-search input::placeholder { color: var(--color-text-secondary); opacity: 0.75; }
.cmdk-esc {
    font-family: inherit; font-size: 0.68rem; font-weight: 700;
    padding: 0.15rem 0.4rem; border-radius: 0.3rem;
    background: var(--color-muted); border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.cmdk-list { overflow-y: auto; padding: 0.35rem; scroll-padding: 0.5rem; }

.cmdk-group {
    padding: 0.55rem 0.7rem 0.3rem;
    font-size: 0.7rem; font-weight: 800; letter-spacing: 0.02em;
    color: var(--color-text-secondary);
    text-transform: none;
}

.cmdk-item {
    display: flex; align-items: center; gap: 0.7rem;
    padding: 0.55rem 0.7rem;
    border-radius: 0.6rem;
    cursor: pointer;
    border: 1px solid transparent;
}
.cmdk-item.is-selected {
    background: color-mix(in srgb, var(--color-accent) 12%, var(--color-surface));
    border-color: color-mix(in srgb, var(--color-accent) 32%, transparent);
}
.cmdk-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 30px; height: 30px; flex-shrink: 0;
    border-radius: 0.5rem;
    background: var(--color-muted);
    color: var(--color-accent);
}
.cmdk-item.is-selected .cmdk-icon { background: color-mix(in srgb, var(--color-accent) 20%, transparent); }
.cmdk-text { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; flex: 1; }
.cmdk-title {
    font-size: 0.87rem; font-weight: 700; color: var(--color-text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cmdk-sub {
    font-size: 0.73rem; color: var(--color-text-secondary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cmdk-badge {
    flex-shrink: 0;
    font-size: 0.68rem; font-weight: 700;
    padding: 0.15rem 0.5rem; border-radius: 999px;
    background: color-mix(in srgb, var(--color-accent) 14%, transparent);
    color: var(--color-accent);
}

.cmdk-empty { padding: 2rem 1rem; text-align: center; }
.cmdk-empty p { margin: 0 0 0.35rem; font-weight: 700; color: var(--color-text); }
.cmdk-empty small { color: var(--color-text-secondary); font-size: 0.78rem; line-height: 1.7; }

.cmdk-footer {
    display: flex; gap: 1rem; flex-wrap: wrap;
    padding: 0.55rem 1rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-muted);
    font-size: 0.72rem; color: var(--color-text-secondary);
}
.cmdk-footer kbd {
    font-family: inherit; font-size: 0.68rem; font-weight: 700;
    padding: 0.08rem 0.35rem; margin-inline-end: 0.15rem;
    border-radius: 0.3rem;
    background: var(--color-surface); border: 1px solid var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
    .cmdk, .cmdk-panel { transition: none; }
    .cmdk-panel { transform: none; }
}

/* ==================== إبراز العنصر بعد القفز إليه ==================== */

/* بعد أن تنقلك لوحة الأوامر للقسم الصحيح، النبضة تدلّك على العنصر نفسه
   وسط عشرات البطاقات — بدونها يضيع نصف فائدة البحث. */
@keyframes mcpFlash {
    0%, 100% { box-shadow: 0 0 0 0 transparent; }
    12%      { box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent) 42%, transparent); }
    60%      { box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent) 22%, transparent); }
}
.is-flashed {
    animation: mcpFlash 2.1s ease-out;
    border-color: color-mix(in srgb, var(--color-accent) 55%, transparent) !important;
}
@media (prefers-reduced-motion: reduce) {
    .is-flashed { animation: none; outline: 3px solid var(--color-accent); outline-offset: 2px; }
}

/* ==================== نافذة الاختصارات ==================== */

.shortcut-rows { display: flex; flex-direction: column; gap: 0.15rem; }
.shortcut-row {
    display: flex; align-items: center; gap: 1rem;
    padding: 0.6rem 0.2rem;
    border-bottom: 1px dashed var(--color-border);
}
.shortcut-row:last-child { border-bottom: none; }
.shortcut-keys { display: inline-flex; align-items: center; gap: 0.2rem; flex-shrink: 0; min-width: 150px; }
.shortcut-keys kbd {
    font-family: inherit; font-size: 0.72rem; font-weight: 700;
    padding: 0.2rem 0.45rem; border-radius: 0.35rem;
    background: var(--color-muted); border: 1px solid var(--color-border);
    color: var(--color-text);
}
.shortcut-plus { color: var(--color-text-secondary); font-size: 0.7rem; }
.shortcut-desc { font-size: 0.84rem; color: var(--color-text-secondary); line-height: 1.6; }

@media (max-width: 520px) {
    .shortcut-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
    .shortcut-keys { min-width: 0; }
}

.cmdk-busy {
    margin-inline-start: auto;
    display: inline-flex; align-items: center; gap: 0.4rem;
    color: var(--color-accent); font-weight: 600;
}
.cmdk-busy::before {
    content: ''; width: 10px; height: 10px; border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
    border-top-color: var(--color-accent);
    animation: cmdkSpin 0.7s linear infinite;
}
@keyframes cmdkSpin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .cmdk-busy::before { animation: none; } }