.internal-shell {
  min-height: 100vh;
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px;
  display: grid;
  place-items: center;
}

.internal-card {
  width: min(100%, 1040px);
  border: 1px solid #d9dee7;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 18px 42px rgba(27, 39, 61, 0.12);
}

.internal-gate {
  max-width: 540px;
  padding: 28px;
  gap: 22px;
}

.internal-gate,
.internal-workspace {
  display: none;
}

.internal-gate.is-visible,
.internal-workspace.is-visible {
  display: grid;
}

.internal-copy {
  display: grid;
  gap: 10px;
}

.internal-copy h1,
.internal-copy p,
.internal-header h1,
.internal-header p,
.internal-panel h2,
.internal-panel p,
.internal-warning-list {
  margin: 0;
}

.internal-copy h1,
.internal-header h1 {
  font-size: 30px;
  line-height: 1.08;
}

.internal-copy p,
.internal-header p,
.internal-panel p,
.internal-option span,
.internal-dropzone p {
  color: #69717d;
  font-size: 14px;
  line-height: 1.55;
}

.internal-form,
.internal-dropzone,
.internal-grid,
.internal-tool-form,
.internal-file-field,
.internal-warning-block {
  display: grid;
}

.internal-form {
  gap: 14px;
}

.internal-form label,
.internal-option {
  display: grid;
  gap: 8px;
}

.internal-form span {
  color: #3a414b;
  font-size: 12px;
  font-weight: 700;
}

.internal-form input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #d9dee7;
  border-radius: 8px;
  font: inherit;
}

.internal-form input:focus {
  outline: none;
  border-color: #1f6feb;
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.14);
}

.internal-error {
  margin: 0;
  color: #c2410c;
  font-size: 13px;
  font-weight: 700;
}

.internal-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.internal-link-button,
.internal-primary-button,
.internal-secondary-button {
  min-height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
}

.internal-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #eef3f7;
  color: #174ea6;
}

.internal-primary-button {
  background: #1f6feb;
  color: #fff;
  cursor: pointer;
}

.internal-workspace {
  padding: 26px;
}

.internal-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.internal-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.internal-tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.internal-tool-card {
  display: grid;
  gap: 18px;
  align-content: start;
  padding: 20px;
  border: 1px solid #d9dee7;
  border-radius: 8px;
  background: #fff;
}

.internal-tool-card-active {
  background:
    linear-gradient(135deg, rgba(31, 111, 235, 0.05), transparent 34%),
    #fff;
}

.internal-tool-copy {
  display: grid;
  gap: 10px;
}

.internal-tool-label {
  margin: 0;
  color: #174ea6;
  font-size: 12px;
  font-weight: 700;
}

.internal-tool-copy h2,
.internal-tool-copy p {
  margin: 0;
}

.internal-tool-copy code {
  padding: 1px 5px;
  border-radius: 4px;
  background: #f4f6f8;
  color: #174ea6;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.internal-tool-copy h2 {
  font-size: 26px;
  line-height: 1.06;
}

.internal-tool-alert-list {
  margin: 2px 0 0;
  padding-left: 18px;
  color: #b42318;
  font-size: 13px;
  line-height: 1.55;
  font-weight: 700;
}

.internal-tool-alert-list li + li {
  margin-top: 6px;
}

.internal-tool-form {
  gap: 12px;
}

.internal-file-field {
  gap: 8px;
}

.internal-file-field span {
  color: #3a414b;
  font-size: 12px;
  font-weight: 700;
}

.internal-file-field input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #d9dee7;
  border-radius: 8px;
  font: inherit;
  background: #fff;
}

.internal-file-name,
.internal-status {
  margin: 0;
  color: #69717d;
  font-size: 13px;
  line-height: 1.5;
}

.internal-file-name {
  min-height: 20px;
}

.internal-run-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.internal-status[data-mode="working"] {
  color: #174ea6;
}

.internal-status[data-mode="success"] {
  color: #0f9f8f;
}

.internal-status[data-mode="warn"] {
  color: #c2410c;
}

.internal-status[data-mode="error"] {
  color: #b42318;
}

.internal-warning-block {
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid #f2c078;
  border-radius: 8px;
  background: #fff8ef;
}

.internal-warning-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.internal-warning-head strong,
.internal-warning-head span {
  color: #8a4b0f;
  font-size: 13px;
}

.internal-warning-head strong {
  font-weight: 700;
}

.internal-warning-list {
  padding-left: 18px;
  color: #6f4514;
  font-size: 13px;
  line-height: 1.55;
}

.internal-warning-list li + li {
  margin-top: 6px;
}

.internal-tool-preview {
  display: grid;
  gap: 12px;
}

.internal-tool-note {
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border-radius: 8px;
  background: #f8fafc;
  color: #69717d;
  font-size: 14px;
  line-height: 1.5;
}

.internal-tool-card-wide {
  grid-column: 1 / -1;
  min-height: 180px;
}

.internal-tool-card-coming {
  background:
    linear-gradient(135deg, rgba(15, 159, 143, 0.04), transparent 36%),
    #fff;
}

.internal-dropzone {
  gap: 6px;
  min-height: 120px;
  padding: 16px;
  border: 1px dashed #c2ccd9;
  border-radius: 8px;
  background: #f8fafc;
}

.internal-dropzone strong {
  font-size: 15px;
}

@media (max-width: 820px) {
  .internal-shell {
    padding: 16px 12px;
  }

  .internal-actions,
  .internal-header,
  .internal-run-row {
    flex-direction: column;
    align-items: stretch;
  }

  .internal-grid,
  .internal-tool-grid {
    grid-template-columns: 1fr;
  }
}