/* User Manager CSS - Baseado no design da Landing Page */

/* Dark Theme Variables (copiadas da landing.css) */
:root {
    /* Dark Theme Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #151b2d;
    --bg-tertiary: #1e2742;
    
    /* Accent Colors */
    --accent-cyan: #00d4ff;
    --accent-green: #00ff88;
    --accent-purple: #8b5cf6;
    --accent-orange: #ff6b35;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a8b3cf;
    --text-muted: #6b7794;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-cyan) 100%);
    --gradient-bg: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 212, 255, 0.1);
    --shadow-md: 0 8px 32px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 212, 255, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-base: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

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

/* Body com tema escuro */
body {
    font-family: var(--font-family);
    background: var(--gradient-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Container principal */
.container {
    max-width: 1200px;
    margin: var(--space-sm) auto;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xl);
    min-height: calc(100vh - 2rem);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.logo-fallback {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
}

.logo-fallback::before {
    content: "🐺 HubTrade";
    font-size: var(--font-size-2xl);
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.nav a {
    text-decoration: none;
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-base);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    backdrop-filter: blur(10px);
}

.nav a:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.logout-btn {
    background: rgba(220, 53, 69, 0.2) !important;
    border-color: rgba(220, 53, 69, 0.4) !important;
}

.logout-btn:hover {
    background: rgba(220, 53, 69, 0.3) !important;
    border-color: rgba(220, 53, 69, 0.6) !important;
}

/* Alerts */
.alert {
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent-green);
    border-color: rgba(0, 255, 136, 0.3);
}

.alert-error {
    background: rgba(255, 107, 53, 0.1);
    color: var(--accent-orange);
    border-color: rgba(255, 107, 53, 0.3);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    border-color: rgba(255, 193, 7, 0.3);
}

.alert-admin {
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
    border-color: rgba(139, 92, 246, 0.3);
    font-weight: 600;
}

/* Forms */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
    appearance: none; /* Remove estilos padrão do navegador */
    -webkit-appearance: none;
    -moz-appearance: none;
}

/* Adiciona seta personalizada para select */
.form-group select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a8b3cf' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--space-sm) center;
    background-size: 1rem;
    padding-right: calc(var(--space-md) + 1.5rem);
    position: relative;
    z-index: 1;
}

/* Garante que as opções fiquem acima da seta quando abertas */
.form-group select:focus,
.form-group select[size],
.form-group select[multiple] {
    background-image: none;
    z-index: 10;
}

/* Estilo específico para options do select */
.form-group select option {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border: none;
    padding: var(--space-xs);
    line-height: 1.4;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.form-group select option:hover,
.form-group select option:focus {
    background-color: var(--accent-cyan) !important;
    color: var(--bg-primary) !important;
}

.form-group select option:checked {
    background-color: var(--accent-cyan) !important;
    color: var(--bg-primary) !important;
    font-weight: 600;
}

/* Previne duplicação de conteúdo */
.form-group select option::before,
.form-group select option::after {
    display: none;
}

/* Estilos específicos para inputs de data */
.form-group input[type="date"],
.form-group input[type="time"],
.form-group input[type="datetime-local"] {
    color-scheme: dark;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.form-group input[type="date"]::-webkit-calendar-picker-indicator,
.form-group input[type="time"]::-webkit-calendar-picker-indicator,
.form-group input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(1.2);
    cursor: pointer;
}

/* Estilo para dropdowns abertos */
.form-group select::-webkit-scrollbar {
    width: 8px;
}

.form-group select::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.form-group select::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 4px;
}

.form-group select::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Focus states */
.form-group input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-sm);
    background: rgba(255, 255, 255, 0.1);
}

.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-sm);
    background: rgba(255, 255, 255, 0.1);
}

/* Correção específica para select focus */
.form-group select:focus {
    background-image: none; /* Remove a seta quando aberto */
    z-index: 10;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group small {
    display: block;
    margin-top: var(--space-xs);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Buttons */
.btn {
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-orange) 0%, #dc3545 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #ff8f00 100%);
    color: #000;
    box-shadow: var(--shadow-md);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 212, 255, 0.3);
}

.card h3 {
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    font-size: var(--font-size-lg);
    gap: var(--space-xs);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: 1fr 1fr;
}

.grid-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

/* Stats */
.stats {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.stat-item {
    flex: 1;
    min-width: 200px;
    background: var(--gradient-primary);
    color: white;
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-xs);
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    /* Melhorias para scroll horizontal */
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

.table-responsive::-webkit-scrollbar {
    height: 8px;
}

.table-responsive::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

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

.table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    font-size: var(--font-size-sm);
}

.table th,
.table td {
    padding: var(--space-md) var(--space-sm);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    text-overflow: ellipsis;
}

.table th {
    background: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* User Stats Table Specific Styles */
.user-stats-table {
    min-width: 600px; /* Garante largura mínima */
}

.user-stats-table th:nth-child(1),
.user-stats-table td:nth-child(1) {
    min-width: 120px; /* Nome */
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-stats-table th:nth-child(2),
.user-stats-table td:nth-child(2) {
    min-width: 180px; /* Email */
    max-width: 220px;
}

.user-stats-table .email-cell {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: var(--font-size-xs);
}

.user-stats-table th:nth-child(3),
.user-stats-table th:nth-child(4),
.user-stats-table th:nth-child(5),
.user-stats-table td:nth-child(3),
.user-stats-table td:nth-child(4),
.user-stats-table td:nth-child(5) {
    min-width: 80px; /* Total, Wins, Losses */
    text-align: center;
}

.user-stats-table th:nth-child(6),
.user-stats-table td:nth-child(6) {
    min-width: 100px; /* Taxa de Acerto */
    text-align: center;
}

.user-stats-table .rate-cell {
    font-weight: 600;
}

/* Stats Ativos Table Specific Styles */
.stats-ativos-table {
    min-width: 400px;
}

.stats-ativos-table th:nth-child(1),
.stats-ativos-table td:nth-child(1) {
    min-width: 120px; /* Ativo */
}

.stats-ativos-table th:nth-child(2),
.stats-ativos-table th:nth-child(3),
.stats-ativos-table th:nth-child(4),
.stats-ativos-table th:nth-child(5),
.stats-ativos-table td:nth-child(2),
.stats-ativos-table td:nth-child(3),
.stats-ativos-table td:nth-child(4),
.stats-ativos-table td:nth-child(5) {
    min-width: 70px;
    text-align: center;
}

/* Sinais Table Specific Styles */
.sinais-table {
    min-width: 600px;
}

.sinais-table th:nth-child(1),
.sinais-table td:nth-child(1) {
    min-width: 60px; /* ID */
    text-align: center;
}

.sinais-table th:nth-child(2),
.sinais-table td:nth-child(2) {
    min-width: 100px; /* Ativo */
}

.sinais-table th:nth-child(3),
.sinais-table td:nth-child(3) {
    min-width: 90px; /* Direção */
    text-align: center;
}

.sinais-table th:nth-child(4),
.sinais-table td:nth-child(4) {
    min-width: 110px; /* Data/Hora */
    text-align: center;
}

.sinais-table th:nth-child(5),
.sinais-table td:nth-child(5) {
    min-width: 100px; /* Resultado */
    text-align: center;
}

.sinais-table th:nth-child(6),
.sinais-table td:nth-child(6) {
    min-width: 110px; /* Tipo WIN */
    text-align: center;
}

/* Status Badges */
.status-badge {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
}

.status-ativo {
    background: rgba(0, 255, 136, 0.2);
    color: var(--accent-green);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.status-inativo {
    background: rgba(255, 107, 53, 0.2);
    color: var(--accent-orange);
    border: 1px solid rgba(255, 107, 53, 0.3);
}

.status-suspenso {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

/* Titles */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: var(--font-size-3xl);
    font-weight: 600;
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Form Rows */
.form-row {
    display: flex;
    gap: var(--space-md);
    align-items: end;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-10 { margin-bottom: var(--space-xs); }
.mb-20 { margin-bottom: var(--space-sm); }
.mt-10 { margin-top: var(--space-xs); }
.mt-20 { margin-top: var(--space-sm); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-10 { gap: var(--space-xs); }
.gap-15 { gap: var(--space-sm); }
.w-100 { width: 100%; }

.hidden { display: none; }
.visible { display: block; }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent-cyan);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Special Info Boxes */
.info-box {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-left: 4px solid var(--accent-cyan);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
}

.info-box h4 {
    color: var(--accent-cyan);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.info-box p {
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box ul {
    margin: 0;
    padding-left: var(--space-lg);
    color: var(--text-secondary);
}

.info-box li {
    margin-bottom: var(--space-xs);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: var(--space-lg);
    }
}

@media (max-width: 768px) {
    body {
        padding: 0;
    }
    
    .container {
        margin: var(--space-xs);
        padding: var(--space-md);
        border-radius: var(--radius-md);
        min-height: calc(100vh - 1rem);
    }
    
    .header {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
    
    .logo img {
        height: 50px;
    }
    
    .nav {
        justify-content: center;
    }
    
    .nav a {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }
    
    .stats {
        flex-direction: column;
    }
    
    .stat-item {
        min-width: 100%;
    }
    
    .card {
        padding: var(--space-lg);
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
    }
    
    .table-responsive {
        font-size: var(--font-size-xs);
        border-radius: var(--radius-sm);
    }
    
    .table th, .table td {
        padding: var(--space-sm) var(--space-xs);
        min-width: 80px;
    }
    
    /* Ajustes específicos para tabela de usuários em mobile */
    .user-stats-table {
        min-width: 500px; /* Reduz um pouco em mobile */
    }
    
    .user-stats-table th:nth-child(1),
    .user-stats-table td:nth-child(1) {
        min-width: 100px;
        max-width: 120px;
    }
    
    .user-stats-table th:nth-child(2),
    .user-stats-table td:nth-child(2) {
        min-width: 150px;
        max-width: 180px;
    }
    
    .user-stats-table .email-cell {
        font-size: calc(var(--font-size-xs) - 1px);
    }
    
    /* Tabela de ativos em mobile */
    .stats-ativos-table {
        min-width: 350px;
    }
    
    .stats-ativos-table th:nth-child(1),
    .stats-ativos-table td:nth-child(1) {
        min-width: 100px;
    }
    
    .stats-ativos-table th:nth-child(2),
    .stats-ativos-table th:nth-child(3),
    .stats-ativos-table th:nth-child(4),
    .stats-ativos-table th:nth-child(5),
    .stats-ativos-table td:nth-child(2),
    .stats-ativos-table td:nth-child(3),
    .stats-ativos-table td:nth-child(4),
    .stats-ativos-table td:nth-child(5) {
        min-width: 60px;
    }
    
    /* Tabela de sinais em mobile */
    .sinais-table {
        min-width: 500px;
        font-size: calc(var(--font-size-xs) - 1px);
    }
    
    .sinais-table th:nth-child(1),
    .sinais-table td:nth-child(1) {
        min-width: 50px;
    }
    
    .sinais-table th:nth-child(2),
    .sinais-table td:nth-child(2) {
        min-width: 80px;
    }
    
    .sinais-table th:nth-child(3),
    .sinais-table td:nth-child(3) {
        min-width: 70px;
    }
    
    .sinais-table th:nth-child(4),
    .sinais-table td:nth-child(4) {
        min-width: 90px;
    }
    
    .sinais-table th:nth-child(5),
    .sinais-table td:nth-child(5) {
        min-width: 80px;
    }
    
    .sinais-table th:nth-child(6),
    .sinais-table td:nth-child(6) {
        min-width: 90px;
    }
    
    h1 { font-size: var(--font-size-2xl); }
    h2 { font-size: var(--font-size-xl); }
    h3 { font-size: var(--font-size-lg); }
}

@media (max-width: 480px) {
    .container {
        margin: var(--space-xs);
        padding: var(--space-sm);
        min-height: calc(100vh - 0.5rem);
    }
    
    .logo img {
        height: 40px;
    }
    
    .nav a {
        padding: 6px 8px;
        font-size: 11px;
    }
    
    .stat-number {
        font-size: var(--font-size-xl);
    }
    
    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-xs);
    }
    
    /* Tabela de usuários em telas muito pequenas */
    .user-stats-table {
        min-width: 450px;
        font-size: calc(var(--font-size-xs) - 2px);
    }
    
    .user-stats-table th,
    .user-stats-table td {
        padding: var(--space-xs);
    }
    
    .user-stats-table th:nth-child(1),
    .user-stats-table td:nth-child(1) {
        min-width: 80px;
        max-width: 100px;
    }
    
    .user-stats-table th:nth-child(2),
    .user-stats-table td:nth-child(2) {
        min-width: 120px;
        max-width: 150px;
    }
    
    /* Tabela de ativos em telas muito pequenas */
    .stats-ativos-table {
        min-width: 300px;
        font-size: calc(var(--font-size-xs) - 1px);
    }
    
    .stats-ativos-table th:nth-child(1),
    .stats-ativos-table td:nth-child(1) {
        min-width: 80px;
    }
    
    .stats-ativos-table th:nth-child(2),
    .stats-ativos-table th:nth-child(3),
    .stats-ativos-table th:nth-child(4),
    .stats-ativos-table th:nth-child(5),
    .stats-ativos-table td:nth-child(2),
    .stats-ativos-table td:nth-child(3),
    .stats-ativos-table td:nth-child(4),
    .stats-ativos-table td:nth-child(5) {
        min-width: 50px;
    }
    
    /* Tabela de sinais em telas muito pequenas */
    .sinais-table {
        min-width: 400px;
        font-size: calc(var(--font-size-xs) - 2px);
    }
    
    .sinais-table th,
    .sinais-table td {
        padding: var(--space-xs) calc(var(--space-xs) / 2);
    }
    
    .sinais-table th:nth-child(1),
    .sinais-table td:nth-child(1) {
        min-width: 40px;
    }
    
    .sinais-table th:nth-child(2),
    .sinais-table td:nth-child(2) {
        min-width: 60px;
    }
    
    .sinais-table th:nth-child(3),
    .sinais-table td:nth-child(3) {
        min-width: 55px;
    }
    
    .sinais-table th:nth-child(4),
    .sinais-table td:nth-child(4) {
        min-width: 70px;
    }
    
    .sinais-table th:nth-child(5),
    .sinais-table td:nth-child(5) {
        min-width: 60px;
    }
    
    .sinais-table th:nth-child(6),
    .sinais-table td:nth-child(6) {
        min-width: 70px;
    }
    
    h1 { font-size: var(--font-size-xl); }
    h2 { font-size: var(--font-size-lg); }
    h3 { font-size: var(--font-size-base); }
}

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

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

/* Floating Background Elements */
.container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 255, 136, 0.02) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}