/* Variáveis de Cores Modernas */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Login Page */
.login-bg {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.login-header h1 {
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    opacity: 0.9;
    font-size: 14px;
}

.login-form {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 600;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(99, 102, 241, 0.3);
}

.btn-block {
    width: 100%;
}

.login-footer {
    background: #f1f5f9;
    padding: 15px;
    text-align: center;
    color: var(--gray);
    font-size: 13px;
}

.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

/* Dashboard */
.dashboard {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.dashboard-header {
    background: white;
    padding: 20px 30px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-header h1 {
    color: var(--dark);
    font-size: 28px;
    font-weight: 700;
}

.dashboard-header .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.dashboard-header .user-info span {
    color: var(--gray);
    font-size: 14px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    max-width: 1400px;
    margin: 0 auto;
}

.icon-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
    text-decoration: none;
    color: var(--dark);
    display: block;
}

.icon-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.15);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.icon-card i {
    font-size: 60px;
    margin-bottom: 15px;
    display: block;
}

.icon-card.usuarios i { color: #3b82f6; }
.icon-card.clientes i { color: #10b981; }
.icon-card.produtos i { color: #f59e0b; }
.icon-card.pedidos i { color: #8b5cf6; }
.icon-card.faturamento i { color: #ef4444; }
.icon-card.sair i { color: #64748b; }

.icon-card:hover.usuarios i,
.icon-card:hover.clientes i,
.icon-card:hover.produtos i,
.icon-card:hover.pedidos i,
.icon-card:hover.faturamento i,
.icon-card:hover.sair i {
    color: white;
}

.icon-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.icon-card p {
    color: var(--gray);
    font-size: 14px;
    margin-top: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .login-container {
        max-width: 100%;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}