/**
 * Header — مستوى براند عالمي
 * مرجع: Apple, Stripe, Linear, Vercel
 * بنية واضحة، روابط في المنتصف، لمسات بسيطة
 */

:root {
    --nav-font: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --primary-500: #2563EB;
    --primary-600: #1D4ED8;
    --primary-gradient: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-base: 0.2s cubic-bezier(0.32, 0.72, 0, 1);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-menu: 0 4px 24px rgba(0, 0, 0, 0.08);
}

/* ─── الشريط ───────────────────────────────────────────────────────────── */
.navbar {
    font-family: var(--nav-font);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 64px;
    background: #fff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    width: 100%;
    max-width: 100vw;
}

.navbar.is-scrolled {
    border-bottom-color: rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    width: 100%;
    min-width: 0;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 24px;
    min-width: 0;
}

/* ─── اللوجو ───────────────────────────────────────────────────────────── */
.nav-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.nav-logo-img {
    height: 28px;
    width: auto;
    object-fit: contain;
    display: block;
}

.nav-logo:hover .nav-logo-img {
    opacity: 0.85;
}

/* ─── المسافات لتوسيط الروابط ─────────────────────────────────────────── */
.nav-spacer {
    flex: 1;
    min-width: 0;
}

/* ─── روابط التنقل (في المنتصف) ────────────────────────────────────────── */
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-shrink: 0;
}

.nav-link {
    font-size: 15px;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 0;
    transition: color var(--transition-base);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.is-active {
    color: var(--text-primary);
    font-weight: 500;
}

/* ─── الأزرار وقائمة المستخدم ─────────────────────────────────────────── */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    line-height: 1.4;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background var(--transition-base), color var(--transition-base);
}

.nav-btn--ghost {
    background: transparent;
    color: var(--text-secondary);
}

.nav-btn--ghost:hover {
    color: var(--text-primary);
    background: var(--gray-100);
}

.nav-btn--primary {
    background: var(--primary-gradient);
    color: #fff;
}

.nav-btn--primary:hover {
    opacity: 0.95;
}

/* ─── قائمة المستخدم ───────────────────────────────────────────────────── */
.nav-user {
    position: relative;
}

.nav-user-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px 6px 14px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 999px;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    transition: border-color var(--transition-base), background var(--transition-base);
}

.nav-user-trigger:hover {
    border-color: rgba(0, 0, 0, 0.12);
    background: var(--gray-100);
}

.nav-user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.nav-user-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-user-chevron {
    flex-shrink: 0;
    color: var(--text-secondary);
    transition: transform var(--transition-base);
}

.nav-user-trigger[aria-expanded="true"] .nav-user-chevron {
    transform: rotate(180deg);
}

.nav-user-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    padding: 6px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-menu);
    z-index: 1001;
}

[dir="rtl"] .nav-user-menu {
    right: auto;
    left: 0;
}

.nav-user-menu[hidden] {
    display: none !important;
}

.nav-user-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    border: none;
    background: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--transition-base);
    text-align: right;
    font-family: inherit;
}

[dir="rtl"] .nav-user-item {
    text-align: right;
}

.nav-user-item:hover {
    background: var(--gray-100);
    color: var(--primary-600);
}

.nav-user-item i {
    width: 18px;
    text-align: center;
    opacity: 0.85;
}

.nav-user-divider {
    height: 1px;
    background: rgba(0, 0, 0, 0.06);
    margin: 4px 0;
}

.nav-user-item--danger {
    color: #dc2626;
}

.nav-user-item--danger:hover {
    background: rgba(220, 38, 38, 0.08);
    color: #dc2626;
}

/* ─── زر الموبايل ─────────────────────────────────────────────────────── */
.nav-mobile-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-base);
}

.nav-mobile-btn:hover {
    background: var(--gray-100);
}

.nav-mobile-btn .menu-icon,
.nav-mobile-btn .close-icon {
    display: block;
}

.nav-mobile-btn .close-icon {
    display: none;
}

.nav-mobile-btn.is-open .menu-icon {
    display: none;
}

.nav-mobile-btn.is-open .close-icon {
    display: block;
}

/* ─── توافق قديم (لأي استخدام خارجي) ──────────────────────────────────── */
.logo,
.logo-link { display: flex; align-items: center; }
.logo-image { height: 28px; width: auto; object-fit: contain; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn-primary { background: var(--primary-gradient); color: #fff; padding: 8px 18px; border-radius: var(--radius-md); font-weight: 500; text-decoration: none; display: inline-flex; align-items: center; }
.btn-secondary { background: transparent; color: var(--text-secondary); padding: 8px 18px; border-radius: var(--radius-md); font-weight: 500; text-decoration: none; display: inline-flex; align-items: center; }
.user-menu,
.user-dropdown,
.dropdown-item,
.dropdown-divider,
.logout-item { display: none; }

/* ─── الموبايل ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .navbar {
        height: 56px;
        padding-left: env(safe-area-inset-left, 0);
        padding-right: env(safe-area-inset-right, 0);
    }

    .nav-container {
        padding-left: max(20px, env(safe-area-inset-left) + 8px);
        padding-right: max(20px, env(safe-area-inset-right) + 8px);
        /* بيدنغ أوضح لجهة زر القائمة كي لا يُقص */
        padding-right: max(56px, env(safe-area-inset-right) + 20px);
    }

    [dir="rtl"] .nav-container {
        padding-right: max(20px, env(safe-area-inset-right) + 8px);
        padding-left: max(56px, env(safe-area-inset-left) + 20px);
    }

    .nav-content {
        gap: 10px;
        width: 100%;
        min-width: 0;
        justify-content: space-between;
    }

    .nav-spacer--start,
    .nav-spacer--end {
        display: none;
    }

    /* القائمة المنزلقة — تبدأ تحت الشريط، الشريط يبقى ظاهراً للإغلاق */
    .nav-links {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 0;
        padding-top: 12px;
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
        padding-bottom: max(24px, env(safe-area-inset-bottom));
        background: #fff;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
        max-height: none;
        height: calc(100vh - 56px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transform: translateX(100%);
        opacity: 1;
        visibility: hidden;
        pointer-events: none;
        transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1),
                    visibility 0s linear 0.3s;
        z-index: 999;
    }

    [dir="rtl"] .nav-links {
        transform: translateX(-100%);
    }

    .nav-links.is-open {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
        transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
    }

    [dir="rtl"] .nav-links.is-open {
        transform: translateX(0);
    }

    .nav-link {
        display: block;
        padding: 16px 0;
        font-size: 18px;
        font-weight: 500;
        border-radius: 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        min-height: 52px;
        display: flex;
        align-items: center;
    }

    .nav-link:hover {
        background: var(--gray-100);
    }

    .nav-link:active {
        background: var(--gray-200);
    }

    .nav-actions {
        gap: 8px;
        min-width: 0;
        margin-inline-start: auto;
        display: flex;
        align-items: center;
    }

    .nav-actions .nav-btn--ghost {
        display: none;
    }

    .nav-actions .nav-btn--primary {
        padding: 8px 12px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .nav-mobile-btn {
        display: flex;
        flex-shrink: 0;
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
        overflow: visible;
        position: relative;
        z-index: 1;
        margin-left: 20px;
    }

    

    .nav-logo {
        min-width: 0;
        flex-shrink: 0;
    }

    .nav-logo-img {
        height: 26px;
        max-height: 26px;
    }

    .nav-user-trigger {
        padding: 6px 8px 6px 12px;
        min-height: 40px;
    }

    .nav-user-name {
        max-width: 80px;
    }

    .nav-user-menu {
        left: 0;
        right: auto;
        min-width: 220px;
        max-width: calc(100vw - 2rem);
    }

    [dir="rtl"] .nav-user-menu {
        left: auto;
        right: 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding-left: max(20px, env(safe-area-inset-left) + 8px);
        padding-right: max(56px, env(safe-area-inset-right) + 20px);
    }

    [dir="rtl"] .nav-container {
        padding-right: max(20px, env(safe-area-inset-right) + 8px);
        padding-left: max(56px, env(safe-area-inset-left) + 20px);
    }

    .nav-content {
        gap: 6px;
    }

    .nav-logo-img {
        height: 24px;
        max-height: 24px;
    }

    /* إخفاء اسم المستخدم — أيقونة فقط لتوفير المساحة */
    .nav-user-name {
        display: none;
    }

    .nav-user-trigger {
        padding: 8px;
    }

    .nav-user-avatar {
        width: 32px;
        height: 32px;
        font-size: 13px;
    }

    .nav-actions .nav-btn--primary {
        padding: 10px 12px;
        font-size: 13px;
    }

    .nav-link {
        font-size: 17px;
        padding: 18px 0;
        min-height: 56px;
    }
}