/**
 * TokenGuard - Sistema de Autenticação TOTP
 * Identidade Visual Moderna e Tecnológica - Versão Refinada
 */

/* Importar fonte Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Variáveis CSS para modo claro */
:root {
    /* Cores Primárias */
    --color-primary: #3366FF;
    --color-primary-dark: #1a3a8a;
    --color-primary-light: #4A7CFF;
    --color-accent: #00D4FF;
    --color-secondary: #60A5FA;
    --color-gray-light: #F4F6FA;
    --color-code-bg: #F2F6FF;
    
    /* Texto */
    --color-text-primary: #101820;
    --color-text-secondary: #4A5568;
    --color-text-muted: #8892a4;
    
    /* Background */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F4F6FA;
    --color-bg-sidebar: #FFFFFF;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-border: rgba(0, 0, 0, 0.08);
    
    /* Bordas e Sombras */
    --border-radius: 12px;
    --border-radius-small: 8px;
    --border-radius-large: 20px;
    --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-sidebar: 2px 0 8px rgba(0, 0, 0, 0.05);
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-width-collapsed: 80px;
}

/* Modo Escuro */
[data-theme="dark"] {
    --color-primary: #4A7CFF;
    --color-primary-dark: #1a3a8a;
    --color-primary-light: #5B8DFF;
    --color-accent: #00D4FF;
    --color-secondary: #60A5FA;
    --color-gray-light: #1F2937;
    --color-code-bg: #1E293B;
    
    --color-text-primary: #F4F6FA;
    --color-text-secondary: #A0AEC0;
    --color-text-muted: #8892a4;
    
    --color-bg-primary: #0a0f1c;
    --color-bg-secondary: #060912;
    --color-bg-sidebar: #0f1629;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-border: rgba(255, 255, 255, 0.08);
    
    --shadow-sm: 0 0 12px rgba(59, 130, 246, 0.2);
    --shadow-md: 0 0 16px rgba(59, 130, 246, 0.25);
    --shadow-lg: 0 0 24px rgba(59, 130, 246, 0.3);
    --shadow-sidebar: 2px 0 8px rgba(0, 0, 0, 0.3);
}

/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
}

/* Layout Principal com Sidebar */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Sidebar Moderna */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: var(--color-bg-sidebar);
    border-right: 1px solid var(--color-border);
    box-shadow: var(--shadow-sidebar);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: width var(--transition-normal), transform var(--transition-normal);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

/* Sidebar Header */
.sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 0.875rem;
    min-height: 72px;
    background: linear-gradient(180deg, var(--color-bg-sidebar) 0%, transparent 100%);
}

.sidebar-logo {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(51, 102, 255, 0.25);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.sidebar-logo:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(51, 102, 255, 0.35);
}

.sidebar-logo img {
    width: 100%;
    height: 100%;
    border-radius: 10px;
    object-fit: cover;
}

.sidebar-logo i {
    color: #FFFFFF;
    font-size: 1.35rem;
}

.sidebar-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    letter-spacing: -0.01em;
}

.sidebar.collapsed .sidebar-brand {
    opacity: 0;
    width: 0;
    transform: translateX(-10px);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0.625rem;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav-section {
    margin-bottom: 1.25rem;
}

.sidebar-nav-section-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: 0.625rem 0.875rem;
    margin-bottom: 0.375rem;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-nav-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
    opacity: 0.5;
}

.sidebar.collapsed .sidebar-nav-section-title {
    opacity: 0;
    height: 0;
    padding: 0;
    margin: 0;
}

.sidebar.collapsed .sidebar-nav-section-title::after {
    display: none;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    margin-bottom: 0.125rem;
    border-radius: var(--border-radius-small);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-nav-item i {
    font-size: 1.05rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.85;
    transition: opacity var(--transition-fast);
}

.sidebar-nav-item:hover {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    transform: translateX(3px);
}

.sidebar-nav-item:hover i {
    opacity: 1;
}

.sidebar-nav-item.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #FFFFFF;
    box-shadow: 0 3px 10px rgba(51, 102, 255, 0.25);
}

.sidebar-nav-item.active i {
    opacity: 1;
}

.sidebar-nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 55%;
    background: #FFFFFF;
    border-radius: 0 2px 2px 0;
}

.sidebar-nav-item-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
}

.sidebar.collapsed .sidebar-nav-item-text {
    opacity: 0;
    width: 0;
}

.sidebar-nav-item-badge {
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

.sidebar-nav-item.active .sidebar-nav-item-badge {
    background: rgba(255, 255, 255, 0.2);
}

.sidebar.collapsed .sidebar-nav-item-badge {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
}

/* Submenu de Auditoria */
.sidebar-nav-item-parent {
    cursor: pointer;
}

.sidebar-nav-item-arrow {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
    opacity: 0.6;
}

.sidebar-nav-item-parent:hover .sidebar-nav-item-arrow {
    opacity: 1;
}

.sidebar-nav-item-parent.expanded .sidebar-nav-item-arrow {
    transform: rotate(180deg);
    opacity: 1;
}

.sidebar-nav-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
    margin-left: 0.875rem;
    margin-top: 0.25rem;
    border-left: 2px solid var(--color-border);
    padding-left: 0;
}

.sidebar-nav-submenu.expanded {
    max-height: 500px;
    margin-bottom: 0.5rem;
}

.sidebar-nav-subitem {
    padding-left: 1.25rem !important;
    font-size: 0.825rem;
    margin-left: 0;
    border-left: none;
    border-radius: 0 var(--border-radius-small) var(--border-radius-small) 0;
}

.sidebar-nav-subitem.active {
    border-left: none;
    background: linear-gradient(90deg, rgba(51, 102, 255, 0.1) 0%, rgba(51, 102, 255, 0.2) 100%);
    color: var(--color-primary);
    box-shadow: none;
}

.sidebar-nav-subitem.active::before {
    display: none;
}

[data-theme="dark"] .sidebar-nav-subitem.active {
    background: linear-gradient(90deg, rgba(74, 124, 255, 0.1) 0%, rgba(74, 124, 255, 0.2) 100%);
    color: var(--color-primary-light);
}

.sidebar-nav-subitem.active {
    border-left-color: var(--color-primary);
}

.sidebar.collapsed .sidebar-nav-submenu {
    display: none;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 0.875rem 0.75rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: linear-gradient(0deg, var(--color-bg-sidebar) 0%, transparent 100%);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.625rem;
    border-radius: var(--border-radius-small);
    transition: background var(--transition-fast);
}

.sidebar-user:hover {
    background: var(--color-bg-card);
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(51, 102, 255, 0.2);
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 0.825rem;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.sidebar-user-email {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.sidebar.collapsed .sidebar-user-info {
    opacity: 0;
    width: 0;
}

.sidebar-actions {
    display: flex;
    gap: 0.375rem;
    transition: opacity var(--transition-normal);
}

.sidebar.collapsed .sidebar-actions {
    flex-direction: column;
}

.sidebar-action-btn {
    flex: 1;
    padding: 0.5rem;
    border: none;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-small);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    text-decoration: none;
}

.sidebar-action-btn:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(51, 102, 255, 0.2);
}

.sidebar-toggle {
    position: absolute;
    top: 50%;
    right: -14px;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1001;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
    transform: translateY(-50%) scale(1.1);
}

.sidebar-toggle i {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

/* Main Content Area */
.main-content-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-normal);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sidebar.collapsed ~ .main-content-wrapper {
    margin-left: var(--sidebar-width-collapsed);
}

.main-content {
    flex: 1;
    padding: 2rem;
}

/* Top Bar */
.top-bar {
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    padding: 0.875rem 1.5rem;
    display: flex;
    min-height: 60px;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.top-bar-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
    transform: scale(1.1);
}

/* Tipografia - Hierarquia Consistente */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

h1 { 
    font-size: 2rem; 
    font-weight: 600; 
}

h2 { 
    font-size: 1.75rem; 
    font-weight: 600; 
}

h3 { 
    font-size: 1.5rem; 
    font-weight: 600; 
}

h4 { 
    font-size: 1.25rem; 
    font-weight: 600; 
}

h5, h6 {
    font-weight: 500;
}

p, span, div {
    color: var(--color-text-primary);
    font-weight: 400;
}

.text-muted {
    color: var(--color-text-secondary) !important;
    font-weight: 400;
}

/* Navbar - Mantida para páginas sem sidebar (login, etc) */
.navbar {
    background: var(--color-primary) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 10px 0;
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .navbar {
    background: #0F172A !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #FFFFFF !important;
}

.navbar-brand span {
    color: #FFFFFF !important;
    font-weight: 600;
}

.logo-container {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.logo-icon {
    color: #FFFFFF;
    font-size: 1.75rem;
    z-index: 1;
    position: relative;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.4rem 0.75rem !important;
    border-radius: var(--border-radius-small);
    transition: all var(--transition-fast);
    margin: 0 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: #FFFFFF !important;
}

.nav-link i {
    font-size: 0.95rem;
}

/* Dropdown Menu Elegante */
.dropdown-menu {
    border-radius: var(--border-radius-small);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: var(--shadow-md);
    padding: 0.5rem;
    margin-top: 0.5rem;
}

[data-theme="dark"] .dropdown-menu {
    background: var(--color-bg-primary);
    border-color: #1F2937;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
}

.dropdown-item {
    border-radius: var(--border-radius-small);
    padding: 0.5rem 0.75rem;
    transition: all var(--transition-fast);
    font-weight: 400;
}

.dropdown-item:hover {
    background-color: var(--color-gray-light);
}

[data-theme="dark"] .dropdown-item:hover {
    background-color: #1F2937;
}

/* Cards TOTP - Padronizados */
.token-card {
    background: var(--color-bg-primary);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

[data-theme="dark"] .token-card {
    background: #111827;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
    border-color: #1F2937;
}

.token-card:hover {
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

[data-theme="dark"] .token-card:hover {
    box-shadow: 0 0 16px rgba(59, 130, 246, 0.25);
}

.token-label {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-primary);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.token-issuer {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    font-weight: 400;
}

/* Código TOTP */
.totp-code {
    font-family: 'Inter', monospace;
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.4rem;
    color: var(--color-primary);
    text-align: center;
    padding: 1rem;
    background: var(--color-code-bg);
    border-radius: var(--border-radius);
    margin: 0.75rem 0;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.totp-code:hover {
    background: var(--color-primary-light);
    color: #FFFFFF;
    transform: scale(1.02);
}

.token-hidden {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.4rem;
    color: var(--color-text-secondary);
    opacity: 0.6;
}

.token-visible {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.4rem;
    color: var(--color-primary);
    animation: fadeIn 0.3s ease;
}

[data-theme="dark"] .totp-code {
    background: var(--color-code-bg);
    color: var(--color-secondary);
}

.totp-code::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: code-shine 3s infinite;
}

@keyframes code-shine {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Barra de Progresso - Vermelha Padronizada */
.progress {
    height: 4px;
    border-radius: 10px;
    background: var(--color-gray-light);
    overflow: hidden;
    margin: 0.75rem 0;
}

[data-theme="dark"] .progress {
    background: #1F2937;
}

.progress-bar {
    border-radius: 10px;
    transition: width var(--transition-fast), background-color var(--transition-fast);
    background: #FF4D4F !important;
    height: 4px;
}

/* Time Remaining */
.time-remaining {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    font-weight: 400;
}

/* Botões Modernos */
.btn {
    border-radius: var(--border-radius-small);
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    transition: all var(--transition-fast);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-primary);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(51, 102, 255, 0.3);
}

.btn-primary:hover {
    background: #2952E6;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(51, 102, 255, 0.4);
}

.btn-outline-primary {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
    font-weight: 500;
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    transform: translateY(-1px);
}

.btn-outline-secondary {
    border: 2px solid var(--color-text-secondary);
    color: var(--color-text-secondary);
    background: transparent;
    font-weight: 400;
}

.btn-outline-secondary:hover {
    background: var(--color-text-secondary);
    color: #FFFFFF;
}

/* Ripple Effect */
.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

/* Inputs Modernos */
.form-control {
    border-radius: var(--border-radius-small);
    border: 2px solid var(--color-gray-light);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-weight: 400;
}

[data-theme="dark"] .form-control {
    border-color: #1F2937;
    background: var(--color-bg-primary);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(51, 102, 255, 0.1);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

/* Toggle Dark Mode */
.theme-toggle {
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: #FFFFFF;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
}

/* Cards Modernos (genérico) */
.card {
    background: var(--color-bg-primary);
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

[data-theme="dark"] .card {
    background: #111827;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
    border: 1px solid #1F2937;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

[data-theme="dark"] .card:hover {
    box-shadow: 0 0 16px rgba(59, 130, 246, 0.25);
}

.card-body {
    padding: 1.5rem;
}

.card-header {
    background: var(--color-gray-light);
    border-bottom: 1px solid var(--color-gray-light);
    padding: 1rem 1.5rem;
    font-weight: 600;
}

[data-theme="dark"] .card-header {
    background: #1F2937;
    border-color: #1F2937;
}

/* Alertas Modernos */
.alert {
    border-radius: var(--border-radius-small);
    border: none;
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: #FFFFFF;
}

.alert-danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    color: #FFFFFF;
}

.alert-info {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    color: #FFFFFF;
}

.alert-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    color: #FFFFFF;
}

/* Tabelas Modernas */
.table {
    background: var(--color-bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead {
    background: var(--color-gray-light);
}

[data-theme="dark"] .table thead {
    background: #1F2937;
}

.table th {
    font-weight: 600;
    color: var(--color-text-primary);
    border: none;
    padding: 1rem;
}

.table td {
    padding: 1rem;
    border-color: var(--color-gray-light);
    color: var(--color-text-primary);
    font-weight: 400;
}

[data-theme="dark"] .table td {
    border-color: #1F2937;
}

.table-hover tbody tr:hover {
    background: var(--color-gray-light);
    transition: background var(--transition-fast);
}

[data-theme="dark"] .table-hover tbody tr:hover {
    background: #1F2937;
}

/* Badges Modernos */
.badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-small);
    font-weight: 500;
    font-size: 0.75rem;
}

/* Footer */
footer {
    background: var(--color-bg-primary) !important;
    border-top: 1px solid var(--color-gray-light);
    color: var(--color-text-secondary);
    margin-top: auto;
    font-weight: 400;
}

[data-theme="dark"] footer {
    border-color: #1F2937;
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* Espaçamentos - Cards com margem de 24px */
.row > [class*="col-"] {
    margin-bottom: 24px;
}

/* Botão Gerenciar TOTP - Esconder no mobile */
.btn-gerenciar-desktop {
    display: block;
}

@media (max-width: 768px) {
    .btn-gerenciar-desktop {
        display: none !important;
    }
    
    /* Destacar link Gerenciar TOTP na navbar no mobile */
    .nav-link-gerenciar {
        background: rgba(255, 255, 255, 0.15) !important;
        font-weight: 600 !important;
        border-radius: var(--border-radius-small);
        margin: 0.25rem 0 !important;
    }
    
    .nav-link-gerenciar:hover {
        background: rgba(255, 255, 255, 0.2) !important;
    }
}

/* Responsividade */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width) !important;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content-wrapper {
        margin-left: 0 !important;
    }
    
    .sidebar-toggle {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .totp-code {
        font-size: 32px;
        letter-spacing: 0.3rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .token-card {
        padding: 16px;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .logo-container {
        width: 40px;
        height: 40px;
    }
    
    .logo-icon {
        font-size: 1.5rem;
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: 0.35rem 0.6rem !important;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .top-bar {
        padding: 1rem;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-small);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1.2rem;
    border: none;
}

.mobile-menu-toggle:hover {
    background: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}

/* Overlay para mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.sidebar-overlay.active {
    display: block;
}

@media (max-width: 768px) {
    .sidebar-overlay.active {
        display: block;
    }
}

/* Scrollbar Customizada */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

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

/* Sidebar Scrollbar */
.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

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

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

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* Utilitários */
.text-primary-custom {
    color: var(--color-primary) !important;
}

.bg-primary-custom {
    background-color: var(--color-primary) !important;
}

.border-primary-custom {
    border-color: var(--color-primary) !important;
}