:root {
    /* Paleta de Cores Moderna */
    --primary-color: #2563eb;       /* Azul Royal */
    --primary-hover: #1d4ed8;       /* Azul Escuro */
    --secondary-color: #64748b;     /* Cinza Azulado */
    --bg-color: #f8fafc;            /* Fundo muito claro (quase branco) */
    --card-bg: #ffffff;
    --text-main: #0f172a;           /* Preto suave */
    --text-muted: #64748b;          /* Cinza para descrições */
    --border-color: #e2e8f0;
    
    /* Cores de Status/Destaque */
    --accent-clients: #3b82f6;      /* Azul para Clientes */
    --accent-finance: #10b981;      /* Verde para Financeiro */
    --accent-config: #8b5cf6;       /* Roxo para Configs */
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Navbar Moderna */
.navbar {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px); /* Efeito de vidro */
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand { 
    font-weight: 700; 
    font-size: 1.25rem; 
    color: var(--primary-color); 
    text-decoration: none;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links { display: flex; align-items: center; gap: 20px; font-size: 0.9rem; }
.nav-links span { color: var(--text-muted); }
.nav-links strong { color: var(--text-main); }
.nav-links a { 
    text-decoration: none; 
    color: #ef4444; 
    font-weight: 600; 
    border: 1px solid #fee2e2;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.2s;
}
.nav-links a:hover { background-color: #fee2e2; }

/* Containers */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
    box-sizing: border-box;
}

/* Títulos da Página */
.page-header { margin-bottom: 2.5rem; }
.page-header h1 { 
    font-size: 1.8rem; 
    margin: 0 0 0.5rem 0; 
    color: var(--text-main); 
    font-weight: 700;
    letter-spacing: -1px;
}
.page-header p { color: var(--text-muted); margin: 0; font-size: 1rem; }

/* Grid de Cards */
.grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 2rem; 
}

.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: left; /* Alinhamento à esquerda fica mais moderno */
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--primary-color);
}

/* Bordas coloridas no topo dos cards */
.card.accent-blue { border-top: 4px solid var(--accent-clients); }
.card.accent-green { border-top: 4px solid var(--accent-finance); }
.card.accent-purple { border-top: 4px solid var(--accent-config); }

.card h3 { 
    margin-top: 0; 
    color: var(--text-main); 
    font-size: 1.25rem; 
    display: flex;
    align-items: center;
    gap: 10px;
}

.card p { 
    color: var(--text-muted); 
    margin-bottom: 2rem; 
    line-height: 1.5;
    font-size: 0.95rem;
    flex-grow: 1;
}

/* Botões */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    text-decoration: none;
    font-size: 0.95rem;
}
.btn:hover { background-color: var(--primary-hover); }
.btn-block { width: 100%; box-sizing: border-box; }

.btn-outline {
    background-color: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Formulários e Login (Mantendo compatibilidade) */
.auth-container {
    max-width: 400px;
    margin: 4rem auto;
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}
.form-group { margin-bottom: 1.2rem; }
input, select {
    width: 100%; padding: 0.75rem; border: 1px solid var(--border-color);
    border-radius: 8px; font-size: 0.95rem; background-color: #fff;
    box-sizing: border-box;
}
input:focus, select:focus {
    outline: none; border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
.hidden { display: none !important; }
.alert { padding: 1rem; border-radius: 8px; margin-bottom: 1.5rem; font-size: 0.9rem; font-weight: 500;}
.alert-error { background-color: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background-color: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }