:root { font-family: system-ui, sans-serif; }
body { margin: 0; background: #f4f5f7; color: #1d2129; }
#app { max-width: 480px; margin: 0 auto; padding: 16px; }
.card { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 1px 4px rgba(0,0,0,.08); }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 16px 0 8px; }
.block { margin-top: 12px; }
input { display: block; width: 100%; box-sizing: border-box; padding: 10px; margin: 6px 0; border: 1px solid #ccd0d5; border-radius: 8px; }
button { display: block; width: 100%; padding: 10px; margin: 6px 0; border: 0; border-radius: 8px; background: #e4e6eb; cursor: pointer; }
button.primary { background: #1877f2; color: #fff; }
button.link { background: none; color: #1877f2; }
.msg { background: #e7f3ff; padding: 8px 12px; border-radius: 8px; margin-bottom: 8px; }
.msg.error { background: #ffebe8; }
.notif { border-top: 1px solid #eee; padding: 8px 0; }