:root {
    --primary: #10b981;
    --primary-dark: #059669;
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --accent: #3b82f6;
    --danger: #ef4444;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; background-color: var(--bg-body); color: var(--text-main); line-height: 1.6; padding-bottom: 50px; }
.container { max-width: 1000px; margin: 0 auto; padding: 20px; }
header { background: var(--bg-card); border-bottom: 1px solid var(--border); padding: 1rem 0; margin-bottom: 2rem; box-shadow: var(--shadow); }
.header-content { display: flex; justify-content: space-between; align-items: center; max-width: 1000px; margin: 0 auto; padding: 0 20px; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 20px; box-shadow: var(--shadow); }
h2 { font-size: 1.2rem; margin-bottom: 15px; color: var(--primary-dark); }
.form-group { margin-bottom: 15px; }
label { display: block; font-weight: 600; margin-bottom: 5px; font-size: 0.9rem; }
input, textarea, select { width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; }
.btn { display: inline-block; padding: 10px 20px; border-radius: 8px; border: none; font-weight: 600; cursor: pointer; text-decoration: none; text-align: center; transition: 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: white; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 0.8rem; color: var(--text-muted); padding: 10px; border-bottom: 1px solid var(--border); }
td { padding: 12px 10px; border-bottom: 1px solid var(--border); }
summary { cursor: pointer; padding: 10px; font-weight: bold; list-style: none; }
summary:hover { background: #f1f5f9; border-radius: 5px; }