* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: #0f172a; color: #e2e8f0; }
.loading { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.spinner { width: 40px; height: 40px; border: 3px solid #1e293b; border-top-color: #3b82f6; border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.client-detail { max-width: 1200px; margin: 0 auto; padding: 2rem; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
h1 { font-size: 2rem; font-weight: 700; color: #f1f5f9; }
.actions { display: flex; gap: 0.5rem; }
button { padding: 0.5rem 1rem; background: #3b82f6; color: white; border: none; border-radius: 0.5rem; cursor: pointer; }
button.danger { background: #ef4444; }
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 1.5rem; }
.card { background: #1e293b; padding: 1.5rem; border-radius: 0.75rem; border: 1px solid #334155; }
.card.full-width { grid-column: 1 / -1; }
.card h2 { font-size: 1.25rem; margin-bottom: 1rem; color: #f1f5f9; }
.info-list { display: flex; flex-direction: column; gap: 1rem; }
.info-item { display: flex; justify-content: space-between; }
.info-item span:first-child { color: #94a3b8; }
.info-item span:last-child { color: #e2e8f0; font-weight: 600; }
textarea { width: 100%; background: #0f172a; border: 1px solid #334155; border-radius: 0.5rem; padding: 0.75rem; color: #e2e8f0; font-family: inherit; }