:root {
    /* Cores Finanças (Verde e Vermelho Sóbrios) */
    --color-income: #2ecc71;
    --color-expense: #e74c3c;
    --color-primary: #2c3e50;
    
    /* Cores Wedding (Tons Pastéis e Românticos) */
    --color-wedding-primary: #d4a5a5; /* Rosa antigo */
    --color-wedding-secondary: #9e8fb2; /* Lilás suave */
    --color-wedding-accent: #ffecd1; /* Creme */
    
    /* Geral */
    --bg-body: #f4f7f6;
    --bg-card: #ffffff;
    --text-main: #333333;
    --text-muted: #7f8c8d;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
    --radius: 12px;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background-color: var(--bg-card);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary);
}

.logo span {
    color: var(--color-wedding-secondary);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--color-wedding-primary);
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card h2 {
    margin-bottom: 15px;
    border-bottom: 2px solid var(--bg-body);
    padding-bottom: 10px;
    font-size: 1.2rem;
    color: var(--color-primary);
}

/* Grid System Simples */
.row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.col {
    flex: 1;
    min-width: 300px;
}

/* Utilitários */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius);
    text-decoration: none;
    color: white;
    background-color: var(--color-primary);
    border: none;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-wedding {
    background-color: var(--color-wedding-secondary);
}

.text-success { color: var(--color-income); }
.text-danger { color: var(--color-expense); }