.check-form {
  display: flex;
  gap: 8px;
  margin: 28px 0 8px;
}

.check-form input {
  flex: 1;
  min-width: 0;
  font: inherit;
  padding: 10px 12px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.check-form button {
  font: inherit;
  font-weight: 600;
  padding: 10px 20px;
  color: #fff;
  background: var(--grade-a);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.check-form button:disabled { opacity: 0.6; cursor: wait; }

.examples { color: var(--text-dim); font-size: 0.9em; margin: 0 0 24px; }

.status {
  padding: 12px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
}

.status.error { color: var(--grade-f); border-color: var(--grade-f); }

.result { margin: 24px 0 40px; }
.result h2 { margin: 0 0 4px; font-size: 1.3em; overflow-wrap: anywhere; }
.result .sub { color: var(--text-dim); font-size: 0.9em; margin: 0 0 16px; }

.grades {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.grade-card {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-alt);
}

.grade-card .label { color: var(--text-dim); font-size: 0.85em; }
.grade-card .value { font-size: 2em; font-weight: 700; line-height: 1.2; }
.grade-card .value small { font-size: 0.5em; font-weight: 400; color: var(--text-dim); margin-left: 6px; }
.g-A, .g-B { color: var(--grade-a); }
.g-C, .g-D { color: var(--grade-c); }
.g-F { color: var(--grade-f); }

.note {
  padding: 10px 14px;
  border-left: 3px solid var(--grade-c);
  background: var(--bg-alt);
  margin: 12px 0;
}

.findings { width: 100%; border-collapse: collapse; font-size: 0.9em; }
.findings th, .findings td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.findings td:first-child { white-space: nowrap; }
.table-scroll { overflow-x: auto; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.actions button, .actions a.btn {
  font: inherit;
  font-size: 0.9em;
  padding: 6px 12px;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
}

.result pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
  font-size: 0.85em;
}

@media (max-width: 600px) {
  main { padding: 0 16px 40px; }
  .check-form { flex-direction: column; }
}