:root {
    --app-primary: #2563eb;
    --app-primary-dark: #1d4ed8;
    --app-accent: #06b6d4;
    --app-bg: #f1f5f9;
    --app-sidebar-bg: #0f172a;
    --app-sidebar-text: #94a3b8;
    --app-sidebar-active: #1e293b;
    --app-radius: 14px;
    --app-shadow: 0 6px 24px rgba(2, 6, 23, .08);
    --app-font: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
}

* { box-sizing: border-box; }

body {
    font-family: var(--app-font);
    background: var(--app-bg);
    color: #1e293b;
    min-height: 100vh;
    margin: 0;
}

/* ============ صفحة تسجيل الدخول ============ */
.login-body {
    background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 60%, #06b6d4 120%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.login-wrapper { width: 100%; max-width: 440px; }
.login-card { border-radius: 20px; }
.login-head {
    background: #ffffff;
    background: linear-gradient(90deg, rgba(255, 255, 255, 1) 0%, rgba(0, 242, 255, 1) 50%, rgba(83, 91, 237, 1) 100%);
    /*background: linear-gradient(135deg, #1d4ed8, #06b6d4);*/
    color: #fff;
    text-align: center;
    padding: 32px 20px;
}
.brand-icon-lg {
    display: inline-flex; align-items: center; justify-content: center;
    width: 64px; height: 64px; border-radius: 18px;
    background: rgba(255,255,255,.18);
    font-size: 30px; margin-bottom: 10px;
}
.login-logo {
    width: 100%; max-width: 250px; height: auto;
    display: block; margin: 0 auto;
}

/* ============ تجاوب صفحة الدخول ============ */
@media (max-width: 480px) {
    .login-body { padding: 12px; }
    .login-card { border-radius: 14px; }
    .login-head { padding: 20px 12px; }
    .login-head .login-logo { max-width: 185px; }
}
@media (max-width: 350px) {
    .login-head .login-logo { max-width: 150px; }
    .login-head p { font-size: .85rem; }
}
@media (min-width: 1400px) {
    .login-wrapper { max-width: 480px; }
}
/* شاشات أفقية قصيرة (هاتف بالعرض): تقليص الرأس ليتسع دون تمرير */
@media (max-height: 640px) and (orientation: landscape) {
    .login-body { align-items: flex-start; padding-top: 10px; padding-bottom: 10px; }
    .login-head { padding: 10px 16px !important; }
    .login-head .login-logo { max-width: 110px; }
    .login-card .card-body { padding: 12px 18px !important; }
}

/* ============ الهيكل العام ============ */
.app-wrapper { display: flex; min-height: 100vh; }

.app-sidebar {
    width: 260px; min-width: 260px;
    background: var(--app-sidebar-bg);
    color: var(--app-sidebar-text);
    display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh;
    z-index: 1040;
    transition: transform .25s ease;
}
.sidebar-brand {
    display: flex; align-items: center; gap: 10px;
    padding: 18px 20px;
    color: #fff; font-weight: 800; font-size: 1.15rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.brand-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 12px;
    background: linear-gradient(135deg, #2563eb, #06b6d4);
    color: #fff; font-size: 20px;
}
.sidebar-nav { padding: 14px 12px; flex: 1; overflow-y: auto; }
.sidebar-nav .nav-link {
    display: flex; align-items: center; gap: 12px;
    color: var(--app-sidebar-text);
    padding: 11px 14px; margin-bottom: 4px;
    border-radius: 10px; font-weight: 600; font-size: .95rem;
    text-decoration: none;
    transition: background .15s, color .15s;
}
.sidebar-nav .nav-link i { font-size: 1.1rem; width: 22px; text-align: center; }
.sidebar-nav .nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.sidebar-nav .nav-link.active { background: var(--app-sidebar-active); color: #fff; box-shadow: inset 3px 0 0 var(--app-accent); }
.sidebar-nav .nav-chevron { margin-left: auto; margin-right: 0; font-size: .8rem !important; width: auto !important; transition: transform .2s; }
.sidebar-nav .nav-link[aria-expanded="true"] .nav-chevron { transform: rotate(180deg); }
.sidebar-nav .nav-submenu { padding-left: 14px; }
.sidebar-nav .nav-submenu .nav-link.sub { padding: 9px 14px 9px 22px; font-size: .88rem; font-weight: 500; }
.sidebar-nav .nav-submenu .nav-link.sub.active { background: var(--app-sidebar-active); color: #fff; }
.sidebar-nav .nav-section {
    padding: 14px 14px 6px;
    font-size: .72rem; font-weight: 700; letter-spacing: .5px;
    text-transform: uppercase;
    color: rgba(148, 163, 184, .75);
}
[dir="rtl"] .sidebar-nav .nav-chevron { margin-left: 0; margin-right: auto; }
[dir="rtl"] .sidebar-nav .nav-submenu .nav-link.sub { padding: 9px 22px 9px 14px; }
.sidebar-footer { padding: 12px; border-top: 1px solid rgba(255,255,255,.06); }
.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 8px; margin-bottom: 8px;
    border-radius: 10px; background: rgba(255,255,255,.04);
}
.avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: linear-gradient(135deg, #2563eb, #06b6d4);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-size: 18px; flex-shrink: 0;
}
.user-info { min-width: 0; }
.user-info strong { display: block; color: #fff; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-info small { color: var(--app-sidebar-text); font-size: .75rem; }
.logout-link { color: #f87171 !important; }
.logout-link:hover { background: rgba(248,113,113,.1) !important; color: #f87171 !important; }

.app-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.app-topbar {
    background: #fff;
    padding: 12px 22px;
    display: flex; align-items: center; gap: 14px;
    position: sticky; top: 0; z-index: 1030;
    box-shadow: 0 1px 0 rgba(2,6,23,.06);
}
.topbar-title { font-size: 1.05rem; font-weight: 700; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.btn-icon {
    width: 40px; height: 40px; border-radius: 10px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid #e2e8f0; background: #fff; color: #475569;
}
.btn-icon:hover { background: #f1f5f9; }
.btn-lang {
    border-radius: 10px; font-weight: 600;
    border: 1px solid #e2e8f0; background: #fff; color: #334155;
    padding: 8px 14px;
}
.btn-lang:hover { background: #f1f5f9; }

.app-content { padding: 22px; flex: 1; }
.app-footer {
    padding: 12px 22px; color: #94a3b8; font-size: .85rem;
    border-top: 1px solid #e2e8f0; background: #fff;
}

/* ============ البطاقات ============ */
.card { border-radius: var(--app-radius); border: none; box-shadow: var(--app-shadow); }
.card-header { background: #fff; border-bottom: 1px solid #eef2f7; border-radius: var(--app-radius) var(--app-radius) 0 0 !important; font-weight: 700; }
.card-title { font-weight: 700; }

.stat-card { border-radius: var(--app-radius); border: none; box-shadow: var(--app-shadow); overflow: hidden; }
.stat-icon {
    width: 52px; height: 52px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: #fff;
}

.gradient-blue { background: linear-gradient(135deg, #2563eb, #3b82f6); }
.gradient-cyan { background: linear-gradient(135deg, #0891b2, #06b6d4); }
.gradient-green { background: linear-gradient(135deg, #16a34a, #22c55e); }
.gradient-orange { background: linear-gradient(135deg, #ea580c, #f97316); }
.gradient-purple { background: linear-gradient(135deg, #7c3aed, #a855f7); }
.gradient-rose { background: linear-gradient(135deg, #e11d48, #f43f5e); }

/* ============ الجداول ============ */
.table thead th {
    background: #f8fafc; font-weight: 700; font-size: .85rem;
    color: #475569; white-space: nowrap;
    border-bottom-width: 1px;
}
.table tbody td { vertical-align: middle; font-size: .92rem; }
.grid-wrap { overflow-x: auto; }
.badge { font-weight: 600; padding: .45em .75em; border-radius: 8px; }

/* ============ النماذج ============ */
.form-control, .form-select {
    border-radius: 10px; border-color: #e2e8f0;
    padding: .55rem .85rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--app-primary);
    box-shadow: 0 0 0 .2rem rgba(37,99,235,.15);
}
.form-label { font-weight: 600; font-size: .9rem; }

.btn { border-radius: 10px; font-weight: 600; }
.btn-primary { background: var(--app-primary); border-color: var(--app-primary); }
.btn-primary:hover { background: var(--app-primary-dark); border-color: var(--app-primary-dark); }

/* ============ شريط بحث وتصفية ============ */
.filter-card { border-radius: var(--app-radius); border: none; box-shadow: var(--app-shadow); }
.page-title { font-size: 1.35rem; font-weight: 800; margin: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }

/* ============ شارات الحالة ============ */
.badge.bg-warning { background: #f59e0b !important; }
.badge.bg-info { background: #0ea5e9 !important; }

/* ============ التجاوب ============ */
@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed; left: 0; top: 0;
        transform: translateX(-100%);
    }
    .app-sidebar.show { transform: translateX(0); }
}
[dir="rtl"] .app-sidebar {
    right: 0; left: auto;
}
[dir="rtl"] .sidebar-nav .nav-link.active { box-shadow: inset -3px 0 0 var(--app-accent); }
@media (max-width: 991.98px) {
    [dir="rtl"] .app-sidebar { transform: translateX(100%); }
    [dir="rtl"] .app-sidebar.show { transform: translateX(0); }
}

.page-spinner {
    display: inline-block; width: 1.2rem; height: 1.2rem;
    border: 3px solid rgba(37,99,235,.2); border-top-color: var(--app-primary);
    border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* ============ المظهر الغامق (Dark Theme) ============ */
[data-theme="dark"] {
    --bs-body-bg: #0b1220;
    --bs-body-color: #dbe4f0;
    --bs-border-color: #24324a;
    --bs-secondary-color: #94a3b8;
    --bs-secondary-bg: #111a2c;
    --bs-card-bg: #121c30;
    --bs-card-color: #dbe4f0;
    --bs-body-color-rgb: 219, 228, 240;

    --app-bg: #0b1220;
    --app-surface: #121c30;
    --app-text: #dbe4f0;
    --app-muted: #94a3b8;
    --app-border: #24324a;
    --app-topbar-bg: #101a2b;
    --app-footer-bg: #101a2b;
}
[data-theme="dark"] body { background: var(--app-bg); color: var(--app-text); }
[data-theme="dark"] .app-topbar { background: var(--app-topbar-bg); box-shadow: 0 1px 0 var(--app-border); }
[data-theme="dark"] .app-footer { background: var(--app-footer-bg); border-top-color: var(--app-border); color: var(--app-muted); }
[data-theme="dark"] .topbar-title { color: var(--app-text); }
[data-theme="dark"] .card,
[data-theme="dark"] .stat-card { background: var(--app-surface); color: var(--app-text); }
[data-theme="dark"] .card-header { background: var(--app-surface); border-bottom-color: var(--app-border); color: var(--app-text); }
[data-theme="dark"] .card-footer { background: var(--app-surface); border-top-color: var(--app-border); }
[data-theme="dark"] .text-muted { color: var(--app-muted) !important; }
[data-theme="dark"] .table { --bs-table-bg: transparent; --bs-table-color: var(--app-text); --bs-table-border-color: var(--app-border); }
[data-theme="dark"] .table thead th { background: #16223a; color: #b6c2d4; border-color: var(--app-border); }
[data-theme="dark"] .table-hover > tbody > tr:hover > * { background-color: rgba(37, 99, 235, .08); color: var(--app-text); }
[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > * { background-color: rgba(255, 255, 255, .02); }
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: #0e1626; color: var(--app-text); border-color: var(--app-border);
}
[data-theme="dark"] .form-control::placeholder { color: #64748b; }
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus { background-color: #0e1626; color: var(--app-text); border-color: var(--app-primary); }
[data-theme="dark"] .form-label { color: #c7d2e3; }
[data-theme="dark"] .form-check-input { background-color: #0e1626; border-color: #33415c; }
[data-theme="dark"] .dropdown-menu { background-color: var(--app-surface); color: var(--app-text); border-color: var(--app-border); }
[data-theme="dark"] .dropdown-item { color: var(--app-text); }
[data-theme="dark"] .dropdown-item:hover { background-color: #16223a; color: #fff; }
[data-theme="dark"] .dropdown-header { color: var(--app-muted); }
[data-theme="dark"] .dropdown-divider { border-color: var(--app-border); }
[data-theme="dark"] .btn-light,
[data-theme="dark"] .btn-lang,
[data-theme="dark"] .btn-icon {
    background-color: #16223a; border-color: #24324a; color: #c7d2e3;
}
[data-theme="dark"] .btn-light:hover,
[data-theme="dark"] .btn-lang:hover,
[data-theme="dark"] .btn-icon:hover { background-color: #1e2c47; color: #fff; }
[data-theme="dark"] .btn-outline-secondary { color: #94a3b8; border-color: #33415c; }
[data-theme="dark"] .btn-outline-secondary:hover { background-color: #16223a; color: #fff; }
[data-theme="dark"] .alert { background-color: var(--app-surface); border-color: var(--app-border); color: var(--app-text); }
[data-theme="dark"] .alert-light { background-color: #101a2b; border-color: var(--app-border); color: var(--app-text); }
[data-theme="dark"] .alert-primary { background-color: #12325f; border-color: #1d4ed8; color: #cfe3ff; }
[data-theme="dark"] .alert-success { background-color: #0f2d1f; border-color: #16a34a; color: #c8f0d8; }
[data-theme="dark"] .alert-warning { background-color: #33280f; border-color: #b45309; color: #ffecc8; }
[data-theme="dark"] .alert-danger { background-color: #3a1220; border-color: #be123c; color: #ffd6df; }
[data-theme="dark"] .input-group-text { background-color: #16223a; color: #c7d2e3; border-color: var(--app-border); }
[data-theme="dark"] .grid-wrap table.table { border-color: var(--app-border); }
[data-theme="dark"] .sidebar-nav .nav-link { color: var(--app-sidebar-text); }
[data-theme="dark"] .sidebar-nav .nav-link.active { background: #1e293b; }
[data-theme="dark"] .form-check-input:checked { background-color: var(--app-primary); border-color: var(--app-primary); }
[data-theme="dark"] .login-body { background: linear-gradient(135deg, #0a0f1e 0%, #14274e 60%, #0e3a4a 120%); }
[data-theme="dark"] .login-card { background: var(--app-surface); color: var(--app-text); }
[data-theme="dark"] .login-head { background: linear-gradient(135deg, #1e3a8a, #0e7490); }
[data-theme="dark"] .nav-pills .nav-link { color: var(--app-muted); }
[data-theme="dark"] .nav-pills .nav-link.active { background: var(--app-primary); color: #fff; }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #33415c; }
[data-theme="dark"] .page-title { color: var(--app-text); }

/* ============ صفحة الإقلاع (Splash) ============ */
.splash-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    overflow: hidden;
    background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 50%, #06b6d4 100%);
    background-size: 200% 200%;
    animation: splashBg 6s ease infinite;
    font-family: var(--app-font);
    color: #fff;
}
@keyframes splashBg {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.splash-bg-particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.splash-bg-particles span {
    position: absolute; bottom: -20px; border-radius: 50%;
    background: rgba(255, 255, 255, .16);
    animation: splashFloatUp linear infinite;
}
.splash-bg-particles span:nth-child(1) { width: 8px; height: 8px; left: 8%; animation-duration: 9s; }
.splash-bg-particles span:nth-child(2) { width: 14px; height: 14px; left: 22%; animation-duration: 12s; }
.splash-bg-particles span:nth-child(3) { width: 6px; height: 6px; left: 45%; animation-duration: 8s; }
.splash-bg-particles span:nth-child(4) { width: 18px; height: 18px; left: 68%; animation-duration: 14s; }
.splash-bg-particles span:nth-child(5) { width: 10px; height: 10px; left: 85%; animation-duration: 10s; }
.splash-bg-particles span:nth-child(6) { width: 12px; height: 12px; left: 95%; animation-duration: 11s; }
@keyframes splashFloatUp {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    100% { transform: translateY(-120vh) translateX(30px); opacity: 0; }
}
.splash-content { text-align: center; position: relative; z-index: 2; }
.splash-icon-ring {
    width: 110px; height: 110px; margin: 0 auto 30px;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    position: relative;
}
.splash-icon-ring::before,
.splash-icon-ring::after {
    content: ''; position: absolute; inset: 0; border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, .35);
    animation: splashRing 2.4s ease-out infinite;
}
.splash-icon-ring::after { animation-delay: 1.2s; }
@keyframes splashRing {
    0% { transform: scale(.6); opacity: 1; }
    100% { transform: scale(1.8); opacity: 0; }
}
.splash-icon {
    width: 92px; height: 92px; border-radius: 50%;
    background: rgba(255, 255, 255, .16);
    backdrop-filter: blur(8px);
    display: flex; align-items: center; justify-content: center;
    font-size: 44px;
    box-shadow: 0 0 40px rgba(255, 255, 255, .25);
    animation: splashFloat 3s ease-in-out infinite;
}
@keyframes splashFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.splash-title {
    font-size: clamp(2.6rem, 8vw, 4.2rem);
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(90deg, #fff 0%, #a5f3fc 25%, #fff 50%, #a5f3fc 75%, #fff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    animation: splashShine 3s linear infinite, splashUp .8s ease both;
}
@keyframes splashShine { to { background-position: 200% center; } }
@keyframes splashUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: none; }
}
.splash-subtitle {
    font-size: 1.15rem; color: rgba(255, 255, 255, .85);
    margin-top: 8px;
    animation: splashUp .8s ease .3s both;
}
.splash-loader { display: flex; gap: 8px; justify-content: center; margin-top: 42px; }
.splash-loader span {
    width: 10px; height: 10px; border-radius: 50%; background: #fff;
    animation: splashDot 1.2s ease-in-out infinite;
}
.splash-loader span:nth-child(2) { animation-delay: .15s; }
.splash-loader span:nth-child(3) { animation-delay: .3s; }
@keyframes splashDot {
    0%, 100% { transform: translateY(0); opacity: .4; }
    50% { transform: translateY(-12px); opacity: 1; }
}