* { box-sizing: border-box; }
html, body {
  height: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f5f7fa;
  color: #23262b;
}

.app {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.card {
  width: 100%;
  max-width: 520px;
  background: #fff;
  padding: 24px;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(23,26,31,0.08);
}

.logo { width: 72px; height: auto; display: block; margin: 0 auto 10px; border-radius: 8px; }

h1 { margin: 6px 0 8px; font-size: 1.4rem; text-align: center; }
.subtitle { margin: 0 0 18px; color: #515f79; font-weight: 500; text-align: center; font-size: 0.95rem; }

.field { margin-bottom: 14px; }
label { display: block; margin-bottom: 6px; font-weight: 600; color: #3b3f46; }
input[type="text"],
input[type="number"],
input[type="date"] {
  width: 100%; padding: 11px 12px; border: 1px solid #cfd6e4; border-radius: 8px;
  font-size: 14px; transition: border-color .2s, box-shadow .2s; background: #fff; color: #23262b;
}
input:focus { border-color: #6c63ff; box-shadow: 0 0 0 3px rgba(108,99,255,.15); }

.error { min-height: 18px; margin: 6px 0 0; font-size: 12px; color: #c62828; }

#search-btn {
  width: 100%; padding: 12px; border: 0; border-radius: 10px; background: #6c63ff; color: #fff;
  font-weight: 700; cursor: pointer; transition: background .2s, transform .05s;
  margin-top: 6px; font-size: 15px;
}
#search-btn:hover { background: #5a52ff; }
#search-btn:active { transform: translateY(1px); }

@media (prefers-color-scheme: dark) {
  html, body { background: #0f1216; color: #e6e9ef; }
  .card { background: #141820; box-shadow: 0 8px 24px rgba(0,0,0,.5); }
  input { background: #0f1216; color: #e6e9ef; border-color: #2a3240; }
  input::placeholder { color: #8a93a6; }
  label { color: #cfd6e4; }
  #search-btn { background: #7b74ff; }
  #search-btn:hover { background: #6f68ff; }
}