:root {
  --bg: #f6f7f4;
  --panel: #ffffff;
  --ink: #1d2527;
  --muted: #637072;
  --line: #d9dfda;
  --accent: #256f63;
  --accent-strong: #174f47;
  --gold: #f2b84b;
  --warn: #b45422;
  --bad: #a83232;
  --shadow: 0 16px 40px rgba(31, 45, 43, 0.10);
  --shadow-lift: 0 22px 56px rgba(31, 45, 43, 0.16);
  --soft: #f9fbf7;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: linear-gradient(180deg, #edf3ef 0, var(--bg) 280px);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease), box-shadow 160ms var(--ease), color 160ms var(--ease);
}

button:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(31, 45, 43, 0.08);
}

button:active {
  transform: translateY(0);
  box-shadow: none;
}

button:disabled {
  transform: none;
  box-shadow: none;
}

.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.primary:hover {
  background: var(--accent-strong);
}

.app-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  max-width: 1560px;
  margin: 0 auto;
  padding: 28px 24px 18px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  font-size: 1.15rem;
  letter-spacing: 0;
}

h3 {
  font-size: 1rem;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  width: min(100%, 620px);
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.74);
}

.tab {
  position: relative;
  overflow: hidden;
  border: 0;
  background: transparent;
}

.tab.is-active {
  color: #fff;
  background: var(--ink);
  box-shadow: inset 0 -3px 0 var(--gold);
}

main {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 24px 24px;
}

.page {
  display: none;
  min-width: 0;
}

.page.is-active {
  display: block;
  animation: pageIn 180ms ease-out both;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(360px, 430px) minmax(760px, 1fr);
  gap: 24px;
  align-items: start;
}

.panel,
.export-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}

.panel:hover,
.export-panel:hover {
  box-shadow: var(--shadow-lift);
}

.panel {
  padding: 22px;
}

.import-panel {
  position: sticky;
  top: 16px;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 120px);
  min-height: 600px;
  padding: 20px;
}

.review-panel {
  min-width: 0;
}

.export-panel {
  overflow: hidden;
}

.export-panel .panel-head,
.export-summary {
  padding: 22px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button-row.compact button {
  min-height: 36px;
  padding-inline: 11px;
}

.review-actions {
  display: flex;
  justify-content: flex-end;
  padding-top: 18px;
}

.build-name-field {
  max-width: 560px;
}

.builder-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--soft);
}

.status-pill {
  white-space: nowrap;
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--accent-strong);
  background: #e3f1ea;
  font-size: 0.82rem;
  font-weight: 700;
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--ink);
  background: #fff;
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease), background-color 160ms var(--ease);
}

input:focus,
select:focus,
textarea:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(37, 111, 99, 0.13);
}

textarea {
  min-height: 320px;
  resize: vertical;
  line-height: 1.45;
}

.field.paste-field {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.field.paste-field textarea {
  flex: 1;
  height: auto;
  min-height: 0;
}

.drop-zone {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 118px;
  margin-bottom: 14px;
  border: 2px dashed #a9bab2;
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
  background: #f8fbf8;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.drop-zone:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.drop-zone strong {
  color: var(--ink);
  font-size: 1.05rem;
}

.import-panel .button-row {
  display: grid;
  grid-template-columns: 1fr 1fr 72px;
}

.import-panel .button-row button {
  padding-inline: 10px;
}

.drop-zone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.drop-zone.is-over {
  border-color: var(--accent);
  background: #edf8f1;
  animation: uploadGlow 1.2s ease-in-out infinite;
}

.criteria-list,
.builder-grid {
  display: grid;
  gap: 18px;
}

.criterion-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  animation: cardIn 160ms ease-out both;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.criterion-card:hover {
  border-color: #b9cac1;
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(31, 45, 43, 0.08);
}

.criterion-top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 170px;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.criterion-title-group {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.criterion-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.criterion-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.criterion-label {
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.criterion-points {
  width: fit-content;
  border-left: 2px solid var(--gold);
  padding-left: 8px;
  color: var(--accent-strong);
  background: transparent;
  font-size: 0.82rem;
  font-weight: 800;
}

.criterion-top input {
  min-height: 48px;
  font-weight: 800;
}

.remove-criterion {
  min-width: 0;
  align-self: center;
  justify-self: stretch;
  border-color: #e5b9b3;
  color: #8d2f2b;
  background: #fff5f3;
  font-weight: 800;
  white-space: nowrap;
}

.remove-criterion:hover {
  border-color: var(--bad);
  color: #fff;
  background: var(--bad);
}

.levels {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.level-row {
  display: grid;
  grid-template-columns: 72px 82px minmax(360px, 1fr) 116px;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 1px solid #e5ebe6;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: #fff;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.level-row:hover {
  transform: translateX(3px);
  border-color: #c7d7cf;
  background: #fefffd;
}

.level-row.just-moved {
  animation: movedRow 420ms var(--ease) both;
}

.mini-field {
  display: grid;
  gap: 6px;
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: none;
}

.mini-field:not(.descriptor-field) {
  align-self: center;
}

.mini-field input,
.mini-field textarea {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.mini-field:not(.descriptor-field) input {
  min-height: 42px;
  padding: 8px 9px;
  text-align: center;
}

.level-row textarea {
  min-height: 104px;
  padding-top: 12px;
  background: #fbfcfa;
}

.level-actions {
  display: grid;
  gap: 10px;
  align-self: stretch;
  align-content: center;
}

.level-actions button {
  min-height: 34px;
  padding-inline: 10px;
}

.reorder-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7faf7;
}

.reorder-control button {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.reorder-control button + button {
  border-left: 1px solid var(--line);
}

.icon-button {
  font-size: 1.05rem;
  font-weight: 900;
}

.remove-level {
  border-color: #efdad7;
  background: #fff8f7;
}

.level-actions button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.danger {
  color: var(--bad);
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 16px;
}

.help-grid article {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: var(--soft);
  line-height: 1.45;
}

.help-grid strong {
  color: var(--accent-strong);
}

.help-grid p {
  color: var(--muted);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px 18px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-weight: 700;
}

.toggle input {
  width: 20px;
  height: 20px;
}

.validation {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.validation strong {
  color: var(--accent-strong);
}

.validation .bad {
  color: var(--bad);
}

.export-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.export-summary {
  display: grid;
  align-content: start;
  gap: 18px;
  background: var(--soft);
}

.export-note {
  display: grid;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  color: var(--muted);
  background: #fff;
  line-height: 1.4;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.export-note:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(31, 45, 43, 0.08);
}

.export-note strong {
  color: var(--ink);
}

pre {
  min-height: 680px;
  max-height: none;
  overflow: auto;
  margin: 0;
  padding: 18px;
  border: 0;
  border-left: 1px solid var(--line);
  background: #17211f;
  color: #e7fff7;
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre;
  word-break: normal;
}

@keyframes pageIn {
  from {
    opacity: 0.82;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cardIn {
  from {
    opacity: 0.9;
    transform: translateY(3px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes uploadGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 111, 99, 0.16);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(37, 111, 99, 0);
  }
}

@keyframes movedRow {
  0% {
    background: #fff7df;
    transform: translateX(0);
  }
  45% {
    background: #fff0bd;
    transform: translateX(8px);
  }
  100% {
    background: #fff;
    transform: translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 1320px) {
  .page-grid {
    grid-template-columns: minmax(320px, 400px) minmax(620px, 1fr);
  }
}

@media (max-width: 1120px) {
  .page-grid {
    grid-template-columns: 1fr;
  }

  .import-panel {
    position: static;
    height: auto;
    min-height: auto;
  }

  .level-row {
    grid-template-columns: 72px 82px minmax(280px, 1fr) 104px;
  }
}

@media (max-width: 720px) {
  .app-header {
    align-items: stretch;
    flex-direction: column;
    padding-inline: 14px;
  }

  main {
    padding-inline: 14px;
  }

  .tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .panel {
    padding: 18px;
  }

  textarea {
    min-height: 260px;
  }

  .panel-head,
  .criterion-top {
    grid-template-columns: 1fr;
  }

  .criterion-title-group {
    grid-template-columns: 1fr;
  }

  .criterion-meta-row {
    align-items: center;
    flex-direction: row;
  }

  .remove-criterion {
    width: 100%;
  }

  .level-row {
    grid-template-columns: 1fr 1fr;
  }

  .descriptor-field {
    grid-column: 1 / -1;
  }

  .level-row button {
    grid-column: auto;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .level-actions {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
  }

  .reorder-control {
    grid-column: 1;
  }

  .remove-level {
    grid-column: 2;
  }

  .import-panel .button-row {
    grid-template-columns: 1fr 1fr;
  }

  #parsePaste {
    grid-column: 1 / -1;
  }

  .field.paste-field textarea {
    min-height: 220px;
  }

  .help-grid {
    grid-template-columns: 1fr;
  }

  .review-actions {
    justify-content: stretch;
  }

  .review-actions button {
    width: 100%;
  }

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

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

  .export-head .button-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .export-grid {
    grid-template-columns: 1fr;
  }

  pre {
    min-height: 520px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}