* {
  box-sizing: border-box;
}

:root {
  --bg: #f1f5f9;
  --ink: #0b1f33;
  --muted: #4b6177;
  --card: #ffffff;
  --line: #d5e0ea;
  --primary: #0f6cab;
  --primary-weak: #e7f3fb;
  --accent: #11a079;
  --danger: #aa2e25;
  --focus: #0f6cab;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Gill Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(1200px 500px at 10% -20%, #dcecf8 0%, transparent 55%),
    radial-gradient(1100px 420px at 110% -10%, #dff8ee 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
}

.container {
  max-width: 1340px;
  margin: 0 auto;
  padding: 22px;
  display: grid;
  gap: 18px;
}

.header h1 {
  margin: 0;
  letter-spacing: 0.2px;
}

.header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 85%, white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  backdrop-filter: blur(6px);
}

button {
  border: 1px solid #33556f;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

button:hover {
  background: #f0f7fc;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(10, 36, 58, 0.12);
}

.inline-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  display: grid;
  gap: 12px;
  box-shadow: 0 4px 18px rgba(16, 36, 52, 0.05);
}

.card h2 {
  margin: 0;
  font-size: 19px;
  color: #0f2a42;
}

.runtime-note {
  background: linear-gradient(135deg, #fff9e9 0%, #fff4cc 100%);
  border-color: #e7cf85;
}

.runtime-note p {
  margin: 0;
  color: #5f4b11;
}

.runtime-note code {
  background: #fff;
  border: 1px solid #dfcb8c;
  border-radius: 6px;
  padding: 2px 6px;
}

.section-title {
  margin: 4px 0 0;
  font-size: 15px;
  color: #1f4a68;
  border-left: 4px solid #cfe2f1;
  padding-left: 8px;
}

.grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: #173550;
}

input,
select,
textarea {
  border: 1px solid #bfd0df;
  border-radius: 8px;
  padding: 9px;
  font-size: 14px;
  width: 100%;
  background: #fff;
  color: #0f2438;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--focus) 35%, transparent);
  outline-offset: 1px;
  border-color: var(--focus);
}

.pdf-cards {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.pdf-card {
  display: grid;
  gap: 4px;
  justify-items: start;
  text-align: left;
  min-height: 90px;
}

.pdf-card span {
  color: var(--muted);
  font-size: 13px;
}

.pdf-card.is-active {
  border-color: var(--primary);
  background: var(--primary-weak);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 25%, white);
}

.form-panel {
  display: none;
}

.form-panel.is-active {
  display: grid;
}

.check-section {
  border-top: 1px solid #dce7f0;
  padding-top: 10px;
  display: grid;
  gap: 10px;
}

.check-section h3,
.issues-section h3 {
  margin: 0;
  font-size: 15px;
}

.check-group {
  border: 1px solid #d9e7f1;
  border-radius: 8px;
  padding: 10px;
  display: grid;
  gap: 8px;
  background: #f8fbfe;
}

.check-group h4 {
  margin: 0;
  font-size: 14px;
  color: #26506f;
}

.check-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 8px;
}

label.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1px solid #d8e5ef;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
}

label.check-item input {
  width: auto;
  margin: 0;
}

.issues-section {
  border-top: 1px solid #dce7f0;
  padding-top: 10px;
  display: grid;
  gap: 10px;
}

.issues-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

#issues-editor {
  display: grid;
  gap: 10px;
}

.issue-empty {
  margin: 0;
  color: #5b6876;
  font-size: 14px;
  border: 1px dashed #c7d4e2;
  border-radius: 8px;
  padding: 12px;
  background: #f9fbfd;
}

.issue-row {
  border: 1px solid #dbe4ed;
  border-radius: 8px;
  padding: 10px;
  display: grid;
  gap: 10px;
  background: #ffffff;
}

.issue-row-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 120px 1fr 1fr;
}

.issue-field {
  display: grid;
  gap: 6px;
}

.issue-field span {
  font-size: 12px;
  color: #405063;
}

.btn-danger {
  width: fit-content;
  border-color: #bb584f;
  color: var(--danger);
}

.btn-danger:hover {
  background: #f9eceb;
}

.json-box {
  min-height: 260px;
  font-family: Consolas, "Courier New", monospace;
}

.check-placeholder {
  margin: 0;
  font-size: 13px;
  color: #4d6378;
  border: 1px dashed #c5d4e1;
  border-radius: 8px;
  background: #f7fbff;
  padding: 10px;
}

#result-box {
  margin: 0;
  min-height: 140px;
  background: #0d1d2e;
  color: #deebf6;
  border-radius: 8px;
  padding: 12px;
  overflow: auto;
  font-size: 13px;
  border: 1px solid #21425e;
}

@media (max-width: 980px) {
  .issue-row-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .container {
    padding: 12px;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }
}