* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

:root {
  --color-bg: #f6f8ff;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f4ff;
  --color-border: #dbe3f5;
  --color-border-strong: #c0cbe4;
  --color-text: #101828;
  --color-text-muted: #5b6478;
  --color-heading: #0f172a;
  --color-primary: #3f6fda;
  --color-primary-strong: #335cc4;
  --color-primary-soft: #e5edff;
  --shadow-card: 0 18px 36px rgba(15, 23, 42, 0.05);
}

body {
  font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a {
  color: var(--color-primary);
}

a:not(.btn):hover,
a:not(.btn):focus {
  color: var(--color-primary-strong);
}

.bar {
  background: linear-gradient(135deg, var(--color-primary-strong), var(--color-primary));
  color: #fff;
  padding: 12px 20px;
  box-shadow: 0 12px 28px rgba(51, 92, 196, 0.18);
}

.bar .btn {
  --btn-bg: #ffffff;
  --btn-bg-hover: #f1f4ff;
  --btn-border: rgba(255, 255, 255, 0.65);
  color: var(--color-primary-strong);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
}

.bar .btn:hover,
.bar .btn:focus-visible {
  color: var(--color-primary-strong);
}

.bar--header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.bar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.locale-switcher {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.locale-switcher label {
  margin: 0;
}

.locale-switcher select {
  appearance: none;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  padding: 6px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  min-width: 120px;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.locale-switcher select:hover {
  background: rgba(255, 255, 255, 0.28);
}

.locale-switcher select:focus-visible {
  outline: none;
  border-color: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
}

.locale-switcher select option {
  color: var(--color-text);
}

.bar--header h1 {
  margin: 0;
  font-weight: 600;
}

.foot {
  font-size: 12px;
  opacity: 0.75;
}

.container {
  max-width: 1040px;
  margin: 18px auto;
  padding: 0 16px;
}

.card,
.pane,
.aims,
.ruleset-controls,
.stage-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}

.card {
  padding: 20px;
  margin-bottom: 16px;
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  --btn-bg: var(--color-primary);
  --btn-bg-hover: var(--color-primary-strong);
  --btn-border: var(--btn-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: 999px;
  padding: 10px 18px;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
  box-shadow: 0 12px 24px color-mix(in srgb, var(--btn-bg) 28%, transparent);
}

button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
}

.btn:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  background: var(--btn-bg-hover);
  border-color: var(--btn-bg-hover);
  color: #fff;
  transform: translateY(-1px);
}

.btn:focus-visible,
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--btn-bg) 25%, transparent);
}

input[type="file"] {
  font: inherit;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 14px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="file"]:hover {
  background: var(--color-surface-muted);
  border-color: var(--color-border-strong);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
}

input[type="file"]:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

input[type="file"]::file-selector-button,
input[type="file"]::-webkit-file-upload-button {
  margin-right: 12px;
  padding: 8px 18px;
  border: none;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

input[type="file"]::file-selector-button:hover,
input[type="file"]::file-selector-button:focus-visible,
input[type="file"]::-webkit-file-upload-button:hover,
input[type="file"]::-webkit-file-upload-button:focus-visible {
  background: var(--color-primary-strong);
  transform: translateY(-1px);
}

.grid {
  display: grid;
  gap: 16px;
  padding: 16px;
}

@media (min-width: 1080px) {
  .grid {
    grid-template-columns: 280px minmax(0, 1fr) 320px;
  }
}

@media (max-width: 1079px) {
  .grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  }
}

.pane {
  padding: 16px;
  min-height: 60vh;
  overflow: auto;
}

.stage-wrap {
  position: sticky;
  top: 20px;
  align-self: flex-start;
  max-height: calc(100vh - 40px);
  overflow: auto;
  padding: 12px;
  min-height: 60vh;
}

.stage {
  position: relative;
  background: var(--color-surface-muted);
  border: 1px dashed var(--color-border-strong);
  border-radius: 14px;
  min-height: 480px;
  overflow: hidden;
}

.overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.aims {
  padding: 12px;
  margin-bottom: 12px;
}

.aims ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.aims li {
  margin-bottom: 6px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.aims li:last-child {
  margin-bottom: 0;
}

.aims li.aim-pass {
  color: #15803d;
  font-weight: 600;
}

.aims li.aim-fail {
  color: #b91c1c;
  font-weight: 600;
}

.aims__marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6em;
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1;
}

.aims__marker--pass {
  color: #15803d;
}

.aims__marker--fail {
  color: #b91c1c;
}

.aims__text {
  flex: 1;
  font-size: 14px;
  line-height: 1.4;
  color: inherit;
}

.controls-pane {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.status-messages {
  flex: 1;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 12px;
  min-height: 140px;
  max-height: 240px;
  overflow: auto;
  font-size: 14px;
  line-height: 1.4;
  color: var(--color-text);
}

.status-messages:empty::before {
  content: "Status updates will appear here.";
  color: var(--color-text-muted);
}

.status-entry {
  padding: 8px 10px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.status-entry:last-child {
  margin-bottom: 0;
}

.status-entry.status-info {
  background: #e8f0ff;
  color: #1e3a8a;
}

.status-entry.status-success {
  background: #dcfce7;
  color: #166534;
}

.status-entry.status-warn {
  background: #fef3c7;
  color: #92400e;
}

.status-entry.status-error {
  background: #fee2e2;
  color: #b91c1c;
}

.controls-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.controls-stack button {
  width: 100%;
  padding: 12px;
  font-size: 15px;
}

.controls-stack button + button {
  margin-left: 0;
}

.ruleset-controls {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ruleset-controls__header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ruleset-controls__header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
}

.ruleset-controls__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.4;
  color: var(--color-text-muted);
}

.ruleset-controls__fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.ruleset-controls__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ruleset-controls__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  background: var(--color-surface);
  border: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ruleset-controls__item:not(.ruleset-controls__item--locked):hover,
.ruleset-controls__item:not(.ruleset-controls__item--locked):focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 10px 20px rgba(47, 111, 237, 0.18);
}

.ruleset-controls__label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--color-text);
}

.ruleset-controls__label input[type="checkbox"] {
  margin-top: 2px;
}

.ruleset-controls__text {
  flex: 1;
  color: inherit;
}

.ruleset-controls__item--locked {
  opacity: 0.65;
}

.ruleset-controls__label--locked {
  color: #94a3b8;
  cursor: not-allowed;
}

.ruleset-controls__label--locked .ruleset-controls__text {
  color: inherit;
}

.ruleset-controls__checkbox--locked {
  cursor: not-allowed;
}

.ruleset-controls__empty {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.ruleset-controls--empty .ruleset-controls__list {
  display: none;
}

.stored-scenarios-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  background: var(--color-surface);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.stored-scenarios-table th,
.stored-scenarios-table td {
  border: 1px solid var(--color-border);
  padding: 10px 12px;
  text-align: left;
  font-size: 14px;
}

.stored-scenarios-table th {
  background: var(--color-surface-muted);
  color: var(--color-heading);
  font-weight: 600;
}

.stored-scenarios-actions {
  display: flex;
  gap: 10px;
}

.stored-scenarios-actions .btn {
  padding: 6px 12px;
  font-size: 13px;
}

input[type="text"],
input[type="number"],
select,
textarea {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.2);
  outline: none;
}

textarea {
  resize: vertical;
}