:root {
    --primary-color: #3a7bd5;
    --sidebar-width: 250px;
    --sidebar-width-collapsed: 80px;
    --icon-size-lg: 24px;
    --icon-size-sm: 28px;    
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
}
.back-to-home {
    text-align: center;
    margin-top: 20px;
}
.login-container {
    width: 100%;
    max-width: 350px;
    border-radius: 10px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}
.login-container .logo {
    width: 60px;
    margin-bottom: .3rem;
}

.password-rules {
    background-color: #f8f9fa;
    border-right: 4px solid #0d6efd;
    padding: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* تعديل المتغيرات للشريط الجانبي */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    background: linear-gradient(to bottom, #3a7bd5, #00d2ff);
    color: white;
    transition: all 0.3s;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    margin-bottom: 8px;
    padding: 12px 15px;
    display: flex;
    align-items: center;
    transition: all 0.2s;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    color: white;
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateX(-5px);
}

.sidebar-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.sidebar-icon i {
    font-size: var(--icon-size-lg);
    margin: 0;
}

.sidebar-text {
    margin-right: 10px;
    font-size: 15px;
    transition: all 0.3s;
}

/* تصميم متجاوب للأجهزة الصغيرة والمتوسطة */
@media (max-width: 992px) {
    :root {
        --sidebar-width: 80px;
    }
    
    .sidebar .nav-link {
        padding: 15px 10px;
        justify-content: center;
    }
    
    .sidebar-text {
        display: none;
    }
    
    .sidebar-icon {
        width: 45px;
        height: 45px;
    }
    
    .sidebar-icon i {
        font-size: var(--icon-size-sm);
    }
    
    .sidebar .text-center h5, .sidebar .text-center h6 {
        font-size: 14px;
    }
    
    .sidebar .nav-link:hover, .sidebar .nav-link.active {
        transform: translateY(-3px);
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 70px;
    }
    
    .sidebar {
        padding: 10px 5px;
    }
    
    .sidebar .nav-link {
        padding: 12px 8px;
        margin-bottom: 6px;
    }
    
    .sidebar-icon {
        width: 40px;
        height: 40px;
    }
    
    .sidebar-icon i {
        font-size: 22px;
    }
}

@media (max-width: 576px) {
    :root {
        --sidebar-width: 60px;
    }
    
    .sidebar {
        padding: 8px 3px;
    }
    
    .sidebar .nav-link {
        padding: 10px 5px;
        margin-bottom: 5px;
    }
    
    .sidebar-icon {
        width: 35px;
        height: 35px;
    }
    
    .sidebar-icon i {
        font-size: 20px;
    }
}

/* تأثير توسيع الشريط عند التمرير (لأجهزة الكمبيوتر اللوحي والجوال) */
@media (max-width: 992px) {
    .sidebar:hover {
        width: 250px;
    }
    
    .sidebar:hover .sidebar-text {
        display: inline;
        margin-right: 15px;
        font-size: 14px;
    }
    
    .sidebar:hover .nav-link {
        justify-content: flex-start;
        padding: 12px 15px;
    }
    
    .sidebar:hover .text-center h5, 
    .sidebar:hover .text-center h6 {
        font-size: 16px;
    }
}

/* تعديل عرض المحتوى الرئيسي ليتناسب مع الشريط الجانبي */
.main-content {
    margin-right: var(--sidebar-width);
    transition: margin-right 0.3s;
}

@media (max-width: 992px) {
    .main-content {
        margin-right: var(--sidebar-width-collapsed);
    }
    
    .sidebar:hover ~ .main-content {
        margin-right: 250px;
    }
}
/* ----------------------------- */

.main-content {
    margin-right: var(--sidebar-width);
    padding: 20px;
}
.stat-card {
    border-radius: 10px;
    transition: transform 0.3s;
}
.stat-card:hover {
    transform: translateY(-5px);
}
.task-status-badge {
    font-size: 0.8rem;
    padding: 5px 10px;
    border-radius: 20px;
}
.filter-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.bg-a-faire { background-color: #6c757d; }
.bg-en-cours { background-color: #0dcaf0; }
.bg-terminee { background-color: #198754; }
.bg-validee { background-color: #0d6efd; }

.file-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.file-card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.file-name {
    font-size: 0.9rem;
    max-width: 150px;
}

.file-details {
    font-size: 0.8rem;
}

.delete-file {
    padding: 0.1rem 0.3rem;
    font-size: 0.9rem;
}

.progress {
    background-color: #e9ecef;
    border-radius: 4px;
}

.progress-bar {
    transition: width 0.3s ease;
}

.delete-existing-file {
    padding: 0.1rem 0.3rem;
    font-size: 0.9rem;
}