:root {
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8C61;
    --secondary: #2A9D8F;
    --secondary-dark: #21867A;
    --secondary-light: #3DBAA5;
    --accent: #E76F51;
    --dark: #212529;
    --dark-light: #2C3034;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --hover-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    --sidebar-width: 280px;
    --header-height: 70px;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    background-color: #f5f7fb;
    color: var(--dark);
    font-family: 'Inter', 'Roboto', 'Segoe UI', sans-serif;
    line-height: 1.6;
    font-size: 16px;
}

.sidebar {
    background: linear-gradient(to bottom, var(--dark-light), var(--dark));
    color: white;
    width: var(--sidebar-width);
    padding: 25px 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.logo i {
    font-size: 28px;
    margin-right: 12px;
    background: var(--primary);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.logo h1 {
    font-size: 22px;
    font-weight: 700;
}

.menu-section {
    margin-bottom: 30px;
}

.menu-title {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    opacity: 0.7;
    padding-left: 15px;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    margin-bottom: 8px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.menu-item.active {
    background: var(--primary);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.menu-item i {
    margin-right: 14px;
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 25px 35px;
    transition: var(--transition);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    padding: 15px 0;
    border-bottom: 1px solid var(--gray-300);
    position: sticky;
    top: 0;
    background: #f5f7fb;
    z-index: 999;
}

.header-left h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-left h2:after {
    content: "";
    width: 4px;
    height: 30px;
    background: var(--primary);
    display: inline-block;
    border-radius: 10px;
}

.dashboard-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
    height: 100%;
}

.dashboard-card:hover {
    box-shadow: var(--hover-shadow);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--gray-300);
}

.card-header h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h3 i {
    color: var(--primary);
    font-size: 22px;
}

.stat-container {
    background: linear-gradient(to right, var(--gray-100), white);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-left: 4px solid var(--secondary);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.stat-label i {
    color: var(--secondary);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--secondary);
    margin: 5px 0;
    display: flex;
    align-items: center;
}

.section-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    height: 100%;
}

.section-card:hover {
    box-shadow: var(--hover-shadow);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-300);
}

.section-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h3 i {
    color: var(--primary);
    font-size: 20px;
}

.list-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

.list-item:hover {
    background: var(--gray-100);
}

.list-item:last-child {
    border-bottom: none;
}

.item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: var(--primary);
    font-size: 16px;
}

.item-details {
    flex: 1;
}

.item-title {
    font-weight: 500;
    margin-bottom: 5px;
}

.item-meta {
    font-size: 13px;
    color: var(--gray-600);
}

.item-status {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-new {
    background: rgba(42, 157, 143, 0.1);
    color: var(--secondary);
}

.status-pending {
    background: rgba(255, 152, 0, 0.1);
    color: #FF9800;
}

.status-completed {
    background: rgba(33, 150, 243, 0.1);
    color: #2196F3;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 250px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--hover-shadow);
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.user-profile.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(to right, var(--primary-light), var(--primary));
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.user-dropdown-item {
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
    cursor: pointer;
    border-bottom: 1px solid var(--gray-200);
}

.user-dropdown-item:last-child {
    border-bottom: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.user-dropdown-item:hover {
    background: var(--gray-100);
}

.user-dropdown-item i {
    width: 20px;
    color: var(--primary);
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}

.sidebar-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px;
    border-radius: var(--border-radius);
    cursor: pointer;
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .sidebar-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .main-content {
        padding: 20px;
    }

    .dashboard-card, .section-card {
        padding: 20px;
    }

    .stat-number {
        font-size: 28px;
    }

    .card-header h3 {
        font-size: 17px;
    }
}