:root {
    --primary-green: #27ae60;
    --primary-green-hover: #219150;
    --danger-red: #e74c3c;
    --bg-gray: #f0f2f5;
    --card-white: #ffffff;
    --text-dark: #2c3e50;
    --text-gray: #7f8c8d;
    --border-color: #dcdde1;
    --input-bg: #f8f9fa;
}

body { font-family: 'Inter', sans-serif; background-color: var(--bg-gray); color: var(--text-dark); margin: 0; padding: 0; display: flex; justify-content: center; }
.app-container { width: 100%; max-width: 900px; padding: 20px; }
header { text-align: center; padding: 30px 0; }
header h1 { margin: 0; font-size: 2.2rem; }
header p { color: var(--text-gray); margin-top: 5px; }

/* Cards */
.card { background: var(--card-white); border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); margin-bottom: 24px; border: 1px solid var(--border-color); overflow: hidden; }
.card-header { padding: 15px 20px; border-bottom: 1px solid var(--border-color); background-color: #fafafa; }
.card-body { padding: 20px; }

/* Flex Helpers */
.display-flex-between { display: flex; justify-content: space-between; align-items: center; }

/* Total Arrecadado */
.total-box { text-align: right; background: #e8f5e9; padding: 8px 15px; border-radius: 8px; border: 1px solid #c8e6c9; }
.total-box span { display: block; font-size: 0.75rem; color: var(--primary-green); font-weight: bold; }
#total-amount { font-size: 1.1rem; color: var(--text-dark); }

/* Form e Inputs */
label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; }
input { width: 100%; padding: 12px; margin-bottom: 15px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--input-bg); box-sizing: border-box; font-size: 1rem; }
input:focus { outline: none; border-color: var(--primary-green); background: white; }

/* Botões */
button { width: 100%; padding: 14px; border-radius: 8px; border: none; font-weight: 700; cursor: pointer; transition: 0.2s; }
.btn-primary { background: var(--primary-green); color: white; }
.btn-primary:hover { background: var(--primary-green-hover); }
.btn-danger { background: var(--danger-red); color: white; margin-top: 10px; }

/* Layout Grid */
.grid-layout { display: grid; grid-template-columns: 1fr 280px; gap: 20px; }
@media (max-width: 768px) { .grid-layout { grid-template-columns: 1fr; } }

/* Tabela e Lista */
table { width: 100%; border-collapse: collapse; }
th { background: #f8f9fa; padding: 12px; text-align: left; font-size: 0.8rem; color: var(--text-gray); text-transform: uppercase; }
td { padding: 12px; border-top: 1px solid var(--border-color); }

#volunteers-list { list-style: none; padding: 0; margin: 0; }
#volunteers-list li { padding: 12px 20px; border-bottom: 1px solid var(--border-color); display: flex; flex-direction: column; }
#volunteers-list li span { font-size: 0.75rem; color: var(--text-gray); }

.badge { background: #e8f5e9; color: var(--primary-green); font-size: 0.7rem; padding: 4px 8px; border-radius: 4px; font-weight: bold; }