:root {
  --bg: #0f1115;
  --card: #171a21;
  --line: #2a2f3a;
  --text: #e8eaee;
  --muted: #8b93a3;
  --accent: #4f8cff;
  --error: #ff6b6b;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 8vh 16px 32px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main { width: 100%; max-width: 560px; }

h1 { margin: 0; font-size: 1.75rem; }
header { margin-bottom: 24px; }

.muted { color: var(--muted); }
.small { font-size: .85rem; margin: 6px 0 0; }

form, #result, details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

label { display: block; margin: 12px 0 6px; font-size: .9rem; }
label:first-child { margin-top: 0; }

input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

button {
  margin-top: 16px;
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: .6; cursor: wait; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }

.error { color: var(--error); margin: 12px 0 0; }

#result { display: flex; align-items: center; gap: 12px; }
#result[hidden] { display: none; }
#result button { margin: 0; }
#short { flex: 1; color: var(--accent); font-weight: 600; word-break: break-all; }

summary { cursor: pointer; font-weight: 600; }
details[open] summary { margin-bottom: 12px; }

.row { display: flex; gap: 8px; }
.row button { margin: 0; white-space: nowrap; }

table { width: 100%; margin-top: 16px; border-collapse: collapse; font-size: .9rem; table-layout: fixed; }
th, td { padding: 8px 4px; border-bottom: 1px solid var(--line); text-align: left; }
th:nth-child(3), td:nth-child(3) { width: 56px; text-align: right; }
th:nth-child(4), td:nth-child(4) { width: 36px; }
td { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
td a { color: var(--accent); }
td button { margin: 0; padding: 2px 8px; background: transparent; color: var(--muted); border: 1px solid var(--line); }