:root {
    
    --primary: #1e88e5;
    --primary-dark: #1976d2;
    --secondary: #424242;
    --success: #4bb543;
    --info: #2196f3;
    --warning: #ff9800;
    --danger: #f44336;
    --light: #f8f9fa;
    --dark: #212529;
    --background-color: #f5f5f5;
    --surface-color: #ffffff;
    --border-color: #e0e0e0;
    --text-primary: #212121;
    --text-secondary: #757575;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --border-radius: 4px;
    --transition: all 0.2s ease;
}


html {
    direction: rtl;
    font-size: 14px;
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', 'Tajawal', 'Cairo', -apple-system, BlinkMacSystemFont, "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.5;
}


.page-content {
    padding: 1rem;
    min-height: calc(100vh - 64px);
    max-width: 100%;
    margin: 0 auto;
}

.sidebar {
    width: 250px;
    background-color: var(--surface-color);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--background-color);
    transition: margin 0.3s ease;
}

.content {
    flex: 1;
    padding: 1.5rem;
}


.mud-drawer {
    background-color: var(--surface-color);
    border-left: 1px solid var(--border-color);
}
.mud-drawer-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}
.mud-nav-menu {
    padding: 0.5rem 0;
}
.mud-nav-link {
    margin: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}
.mud-nav-link:hover {
    background-color: rgba(0, 0, 0, 0.04);
}
.mud-nav-link.mud-nav-link-active {
    background-color: rgba(30, 136, 229, 0.1);
    color: var(--primary);
}


.mud-appbar {
    background-color: var(--surface-color) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.top-row {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    height: 60px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    box-shadow: var(--shadow-sm);
    z-index: 100;
}


.toast-container {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1100;
    width: 350px;
    max-width: 100%;
}
.toast {
    margin-bottom: 1rem;
    border-radius: 0.375rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateX(-100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.toast.show {
    opacity: 1;
    transform: translateX(0);
}


.btn {
    border-radius: 0.375rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: var(--transition);
}
.btn-primary {
    background-color: var(--primary);
    color: #fff;
    border: none;
}
.btn-primary:hover {
    background-color: var(--primary-dark);
}


.text-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.stats-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}
.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}


@media (max-width: 600px) {
    html {
        font-size: 12px;
    }
    .page-content {
        padding: 0.5rem;
    }
}


h1:focus, h2:focus, h3:focus, h4:focus, h5:focus, h6:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}