:root {
  --accent-a: #00d2ff;
  --accent-b: #3a7bd5;
  --ink: #1a1a2e;
  --ink-muted: #6b6b80;
  --card-bg: #ffffff;
  --page-bg: #eef1f8;
  --border: #d8dbe8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--page-bg);
  color: var(--ink);
}

.card {
  width: 100%;
  max-width: 26rem;
  margin: 2rem 1rem;
  padding: 2rem;
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(26, 26, 46, 0.1);
  text-align: center;
}

h1 {
  margin: 0 0 1.5rem;
  font-size: 1.4rem;
  background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.docid-row {
  display: flex;
  gap: 0.5rem;
}

input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 0.6rem 0.75rem;
  font-family: "Lucida Console", "Courier New", monospace;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fafbff;
  color: var(--ink);
}

input[type="text"]:focus {
  outline: 2px solid var(--accent-a);
  outline-offset: 1px;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
  transition: opacity 0.15s ease, transform 0.15s ease;
}

button:hover {
  opacity: 0.9;
}

button:active {
  transform: scale(0.98);
}

button.secondary {
  color: var(--ink);
  background: #f0f2fa;
  border: 1px solid var(--border);
}

form {
  margin-top: 1rem;
}

form > button {
  width: 100%;
}

.status {
  min-height: 1.2em;
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--accent-b);
}

.mono {
  font-family: "Lucida Console", "Courier New", monospace;
  font-weight: 700;
}

.result {
  margin: 0 0 1rem;
  padding: 0.75rem;
  background: #f0f2fa;
  border-radius: 8px;
  font-size: 0.95rem;
}

.result-item + .result-item {
  margin-top: 0.6rem;
}

.result-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  margin-bottom: 0.15rem;
}

.result-value {
  font-size: 1rem;
}

.result-value.mono {
  font-size: 1.05rem;
}

.result.error {
  background: #fdeeee;
  color: #a3323b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eaeaf5;
    --ink-muted: #a0a0b8;
    --card-bg: #1c1c2b;
    --page-bg: #101018;
    --border: #33334a;
  }

  input[type="text"] {
    background: #14141f;
  }

  button.secondary {
    background: #26263a;
  }

  .result {
    background: #26263a;
  }

  .result.error {
    background: #3a2020;
    color: #ff9aa2;
  }
}