* { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, sans-serif; }
body { background: #0f172a; color: #e2e8f0; min-height: 100vh; background-size: cover; background-position: center; }
.screen { display: none; padding: 16px; min-height: 100vh; }
.screen.active { display: block; }
.card { background: rgba(30,41,59,.95); padding: 24px; border-radius: 16px; max-width: 400px; margin: 80px auto; text-align: center; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
button { background: #3b82f6; color: white; border: none; padding: 8px 14px; border-radius: 8px; cursor: pointer; margin: 2px; }
button:hover { background: #2563eb; }
.item { background: rgba(30,41,59,.9); padding: 12px; border-radius: 12px; margin-bottom: 10px; }
.item img { max-width: 100%; border-radius: 8px; margin-top: 8px; }
.item h3 { margin-bottom: 4px; }
.item small { color: #94a3b8; }
input, textarea { width: 100%; padding: 10px; margin: 6px 0; border-radius: 8px; border: 1px solid #334155; background: #1e293b; color: white; }
textarea { min-height: 140px; resize: vertical; }
.fab { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; border-radius: 50%; font-size: 24px; }