:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --sidebar-width: 280px;
    --header-height: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f1f5f9;
    color: #334155;
    line-height: 1.6;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

.sidebar-brand i {
    margin-right: 0.75rem;
    font-size: 2rem;
    color: var(--primary-color);
}

.sidebar-nav {
    padding: 1rem 0;
    overflow-y: auto;
    overflow-x: hidden;
    height: calc(100vh - 80px);
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

.nav-item {
    margin: 0.25rem 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--primary-color);
}

.nav-link.active {
    background-color: rgba(79, 70, 229, 0.2);
    color: white;
    border-left-color: var(--primary-color);
}

.nav-link i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

.nav-link .chevron {
    margin-left: auto;
    margin-right: 0;
    transition: transform 0.3s ease;
    font-size: 0.75rem;
}

.nav-item.has-submenu .nav-link .chevron {
    display: inline-block;
}

.nav-item.has-submenu.expanded .nav-link .chevron {
    transform: rotate(90deg);
}

.nav-dropdown {
    max-height: 0;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
    padding: 0;
    transition: max-height 0.3s ease, padding 0.3s ease;
    margin-left: 0;
    border-radius: 0;
}

.nav-item.expanded > .nav-dropdown {
    max-height: 1000px;
    padding: 0.5rem 0;
}

.nav-dropdown .nav-link {
    padding: 0.5rem 1rem 0.5rem 3rem;
    font-size: 0.875rem;
}

.nav-dropdown .nav-link .chevron {
    display: none;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: all 0.3s ease;
}

/* Header */
.main-header {
    background: white;
    height: var(--header-height);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-left {
    display: flex;
    align-items: center;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--secondary-color);
    cursor: pointer;
    margin-right: 1rem;
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item {
    font-size: 0.875rem;
}

.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-search {
    position: relative;
}

.header-search input {
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    width: 300px;
    font-size: 0.875rem;
}

.header-search i {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--light-color);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

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

.notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--danger-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.user-profile:hover {
    background: rgba(79, 70, 229, 0.1);
}

.dropdown-menu {
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    border-radius: 0.75rem;
    padding: 0.5rem;
    min-width: 200px;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.dropdown-item:hover {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
}

.dropdown-item.text-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: #e2e8f0;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-color);
}

.user-role {
    font-size: 0.75rem;
    color: var(--secondary-color);
}

/* Content Area */
.content-wrapper {
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--secondary-color);
    font-size: 1rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: none;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.card-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-color);
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: 1rem;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.3s ease;
}

.stats-card:hover::before {
    transform: scale(1);
}

.stats-icon {
    font-size: 2.5rem;
    opacity: 0.8;
    margin-bottom: 1rem;
}

.stats-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-warning {
    background: var(--warning-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-info {
    background: var(--info-color);
    color: white;
}

/* Tables */
.table {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.table thead th {
    background: var(--light-color);
    border: none;
    font-weight: 600;
    color: var(--dark-color);
    padding: 1rem;
}

.table tbody td {
    border: none;
    padding: 1rem;
    vertical-align: middle;
}

.table tbody tr:hover {
    background: rgba(79, 70, 229, 0.05);
}

/* Sidebar toggle para desktop também */
.sidebar.hidden {
    transform: translateX(-100%);
}

.main-content.sidebar-hidden {
    margin-left: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-search input {
        width: 200px;
    }
    
    .content-wrapper {
        padding: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Login Page Styles */
.login-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.login-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    padding: 2.5rem;
    animation: fadeInUp 0.5s ease-out;
}

.login-footer a {
    color: white;
    text-decoration: none;
    font-weight: 700;
}

.login-footer a:hover {
    text-decoration: underline;
}