:root {
  --bg: #eef2f4;
  --bg-accent: radial-gradient(circle at top left, rgba(249, 189, 118, 0.4), transparent 34%),
    radial-gradient(circle at top right, rgba(96, 176, 203, 0.24), transparent 32%),
    linear-gradient(180deg, #f7f5ef 0%, #edf2f4 48%, #e8eef0 100%);
  --surface: rgba(255, 255, 255, 0.8);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --border: rgba(39, 54, 59, 0.1);
  --text: #223238;
  --muted: #5a7178;
  --accent: #1f8a70;
  --accent-strong: #166b59;
  --danger: #b84f4f;
  --warn: #b67e2c;
  --shadow: 0 24px 54px rgba(36, 53, 58, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background: var(--bg-accent);
}

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

button {
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(31, 138, 112, 0.2);
  outline-offset: 2px;
}

.is-hidden {
  display: none !important;
}

.page-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 64px;
}

.hero {
  display: block;
  margin-bottom: 18px;
}

.hero-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.hero-copy {
  max-width: 760px;
}

.language-switcher {
  display: inline-grid;
  gap: 7px;
  min-width: 156px;
  padding: 12px;
  border: 1px solid rgba(39, 54, 59, 0.1);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.64);
  box-shadow: 0 16px 34px rgba(36, 53, 58, 0.08);
}

.language-switcher span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.language-switcher select {
  min-height: 36px;
  border: 1px solid rgba(39, 54, 59, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  font-weight: 800;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.35rem, 4.4vw, 3.75rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.eyebrow,
.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent-strong);
  font-size: 0.73rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.lede {
  max-width: 62ch;
  font-size: 1.03rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 18px 0 0;
}

.module-hub {
  display: grid;
  gap: 22px;
  margin: 28px 0 24px;
}

.hub-head {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(39, 54, 59, 0.08);
}

.hub-head h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.1vw, 2.65rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.module-card {
  --card-accent-rgb: 31, 138, 112;
  --card-soft-rgb: 235, 247, 241;
  position: relative;
  display: grid;
  align-content: end;
  gap: 12px;
  min-height: 218px;
  padding: 24px;
  border: 1px solid rgba(var(--card-accent-rgb), 0.2);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(var(--card-soft-rgb), 0.78)),
    rgba(255, 255, 255, 0.78);
  color: var(--text);
  text-align: left;
  box-shadow: 0 24px 54px rgba(36, 53, 58, 0.1);
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.module-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 30px 70px rgba(36, 53, 58, 0.14);
  border-color: rgba(var(--card-accent-rgb), 0.34);
}

.module-card::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 24px;
  width: 48px;
  height: 5px;
  border-radius: 999px;
  background: rgba(var(--card-accent-rgb), 0.62);
}

.module-card::after {
  content: "";
  position: absolute;
  right: -64px;
  bottom: -72px;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(var(--card-accent-rgb), 0.2), transparent 62%);
}

.module-card-active {
  --card-accent-rgb: 31, 138, 112;
  --card-soft-rgb: 235, 247, 241;
}

.module-card-research {
  --card-accent-rgb: 52, 91, 119;
  --card-soft-rgb: 232, 241, 246;
}

.module-card-power {
  --card-accent-rgb: 177, 120, 45;
  --card-soft-rgb: 248, 239, 224;
}

.module-card-figures {
  --card-accent-rgb: 141, 89, 65;
  --card-soft-rgb: 247, 234, 226;
}

.module-card-plagiarism {
  --card-accent-rgb: 107, 87, 143;
  --card-soft-rgb: 241, 235, 247;
}

.module-number {
  position: absolute;
  right: 20px;
  top: 18px;
  font-family: "IBM Plex Mono", monospace;
  color: rgba(var(--card-accent-rgb), 0.28);
  font-size: 2.15rem;
  font-weight: 500;
}

.module-card h3 {
  position: relative;
  z-index: 1;
  margin: 44px 0 0;
  max-width: 15ch;
  font-size: clamp(1.55rem, 2.05vw, 2.15rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.module-card p {
  position: relative;
  z-index: 1;
  max-width: 48ch;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
  margin: 0;
}

.glass {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel,
.card,
.drop-zone,
.sticky-bar {
  border-radius: var(--radius-lg);
}

.muted {
  color: var(--muted);
}

.section-copy,
.card-note {
  color: var(--muted);
  line-height: 1.6;
}

.section-copy {
  max-width: 70ch;
  margin: 10px 0 0;
}

.card-note {
  margin: 10px 0 0;
  font-size: 0.93rem;
}

.micro-note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.hero-actions,
.preset-row,
.action-row,
.export-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.preset-row,
.export-row {
  row-gap: 10px;
}

.section-actions {
  display: grid;
  gap: 12px;
  justify-items: end;
}

.step-guide-row {
  justify-content: flex-end;
}

.action-row {
  margin-top: 18px;
  padding-top: 2px;
}

.sticky-bar {
  position: sticky;
  top: 10px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px;
  margin-bottom: 18px;
  overflow-x: auto;
  scrollbar-width: none;
}

.sticky-bar::-webkit-scrollbar {
  display: none;
}

.factor-sticky-bar {
  align-items: center;
  gap: 8px;
  padding: 8px 9px;
  margin-bottom: 18px;
}

.factor-sticky-bar .tool-home-button,
.factor-sticky-bar .status-pill {
  min-height: 38px;
  align-items: center;
}

.factor-sticky-bar .status-pill {
  padding: 0 14px;
}

.step-chip,
.preset-button,
.ghost-button,
.primary-button,
.export-button,
.tool-home-button {
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, box-shadow 180ms ease;
  white-space: nowrap;
}

.step-chip,
.preset-button,
.ghost-button,
.export-button,
.tool-home-button {
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
}

.step-chip:hover,
.preset-button:hover,
.ghost-button:hover,
.export-button:hover,
.tool-home-button:hover,
.primary-button:hover {
  transform: translateY(-1px);
}

button:disabled:hover {
  transform: none;
}

.step-chip.is-active,
.preset-button.is-selected {
  background: rgba(31, 138, 112, 0.14);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px rgba(31, 138, 112, 0.18);
}

.tool-home-button {
  background: rgba(34, 50, 56, 0.08);
  color: var(--muted);
}

.tool-divider {
  width: 1px;
  align-self: stretch;
  background: rgba(39, 54, 59, 0.1);
  margin: 4px 2px;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  box-shadow: 0 18px 30px rgba(31, 138, 112, 0.25);
}

.primary-button:disabled {
  background: rgba(34, 50, 56, 0.1);
  color: var(--muted);
  box-shadow: none;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(34, 50, 56, 0.07);
  color: var(--muted);
  font-size: 0.88rem;
}

.workspace {
  display: grid;
  gap: 22px;
}

.panel {
  padding: 24px;
  scroll-margin-top: 88px;
}

.section-head,
.card-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.section-head {
  row-gap: 14px;
  margin-bottom: 10px;
}

.card-head {
  margin-bottom: 6px;
}

.section-head h2,
.card-head h3 {
  margin: 0;
}

.upload-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(280px, 360px);
  gap: 16px;
  align-items: start;
  margin-top: 16px;
}

.factor-upload-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(280px, 360px);
  gap: 16px;
  align-items: start;
  margin: 18px 0;
}

.drop-zone {
  position: relative;
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: start;
  padding: 22px;
  background: var(--surface-strong);
  display: grid;
  gap: 10px;
  justify-items: start;
  align-content: center;
  border: 1px dashed rgba(31, 138, 112, 0.32);
  overflow: hidden;
  min-height: 154px;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.factor-drop-zone {
  grid-column: auto;
  grid-row: auto;
}

.drop-zone.is-dragging {
  border-color: rgba(31, 138, 112, 0.72);
  background: rgba(239, 247, 242, 0.96);
  transform: translateY(-1px);
}

.drop-zone::after {
  content: "";
  position: absolute;
  inset: auto -30px -55px auto;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(31, 138, 112, 0.18), transparent 60%);
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.drop-badge {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(31, 138, 112, 0.12);
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.drop-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.drop-subtitle {
  color: var(--muted);
  max-width: 52ch;
}

.drop-format-hint {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid rgba(31, 138, 112, 0.13);
  border-radius: 999px;
  background: rgba(31, 138, 112, 0.08);
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.upload-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 2px;
  width: 100%;
}

.browse-button,
.file-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(39, 54, 59, 0.08);
}

.browse-button {
  font-weight: 700;
}

.file-pill {
  color: var(--muted);
  max-width: 100%;
  overflow-wrap: anywhere;
}

.upload-side {
  display: contents;
}

.upload-side > .helper-card:nth-of-type(1) {
  grid-column: 2;
  grid-row: 1;
}

.helper-card {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(39, 54, 59, 0.08);
  box-shadow: 0 14px 34px rgba(36, 53, 58, 0.06);
}

.helper-card h3 {
  margin: 0;
}

.preupload-checklist {
  margin-top: 18px;
}

.examples-after-checklist {
  margin: 18px 0 20px;
}

.checklist-card .tip-list {
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  padding-left: 0;
  list-style-position: inside;
}

.import-settings-card {
  display: grid;
  gap: 14px;
}

.import-settings-card .card-note,
.import-settings-card .micro-note {
  margin: 0;
}

.import-settings-card .field-title {
  margin-top: 2px;
}

.primary-button-wide {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
  min-height: 48px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.factor-upload-button {
  grid-column: auto;
  grid-row: auto;
}

.example-list,
.tip-list {
  margin: 14px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.sample-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.sample-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(39, 54, 59, 0.08);
}

.sample-item div {
  display: grid;
  gap: 4px;
}

.sample-item strong {
  font-size: 0.92rem;
}

.sample-item span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.sample-item .mono {
  word-break: break-word;
  overflow-wrap: anywhere;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: start;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(31, 138, 112, 0.12);
  color: var(--accent-strong);
  font-weight: 800;
  font-size: 0.84rem;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 180ms ease, background 180ms ease;
}

.download-button:hover {
  transform: translateY(-1px);
  background: rgba(31, 138, 112, 0.18);
}

.tip-list li {
  line-height: 1.45;
}

.compact-field {
  gap: 10px;
}

.delimiter-toolbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: start;
  margin-top: 0;
}

.import-button {
  min-height: 42px;
  padding-inline: 18px;
  width: 100%;
}

.science-note-card {
  margin: 18px 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(239, 247, 242, 0.9));
  border-color: rgba(31, 138, 112, 0.18);
}

.factor-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.75fr);
  gap: 16px;
  margin: 18px 0 16px;
}

.factor-intro-grid .science-note-card {
  grid-row: span 2;
  margin: 0;
}

.factor-checklist-card,
.factor-example-card,
.factor-flow-card {
  padding: 22px;
}

.factor-checklist-card .tip-list,
.factor-flow-card .tip-list {
  padding-left: 18px;
}

.factor-example-card .download-button {
  margin-top: 14px;
}

.example-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.example-button-row .download-button {
  margin-top: 0;
}

.factor-flow-card {
  margin: 16px 0 20px;
  background: rgba(255, 255, 255, 0.74);
}

.factor-flow-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-left: 0;
  list-style: none;
}

.factor-flow-list li {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(39, 54, 59, 0.07);
}

.guardrail-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding-left: 0;
  list-style: none;
}

.guardrail-list li {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(39, 54, 59, 0.07);
}

.grid {
  display: grid;
  gap: 18px;
}

.two-up {
  grid-template-columns: 1.25fr 1fr;
}

.mapping-grid,
.analysis-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.factor-mapping-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mode-selector-card,
.mixed-settings-card,
.power-settings-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(239, 247, 242, 0.76));
  border-color: rgba(31, 138, 112, 0.14);
}

.mode-grid {
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1fr);
  align-items: end;
  margin-top: 12px;
}

.mixed-settings-card .mode-grid {
  grid-template-columns: minmax(220px, 0.8fr) minmax(260px, 1fr);
}

.mode-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.advanced-details {
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
}

.advanced-details summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--accent-dark);
}

.advanced-details p {
  margin: 10px 0 12px;
  color: var(--muted);
  line-height: 1.55;
}

.result-note {
  margin: 8px 0 14px;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.96rem;
}

.power-intro-grid {
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.85fr);
}

.power-form-block {
  margin: 22px 0;
}

.power-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
  align-items: end;
}

.is-hidden-field {
  display: none !important;
}

.power-chart-frame {
  height: 320px;
}

.power-assumptions-list {
  margin-top: 16px;
}

.figures-intro-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
}

.figures-workspace .factor-upload-grid {
  grid-template-columns: minmax(380px, 1fr) minmax(340px, 420px);
  margin-top: 22px;
}

.figure-drop-zone {
  grid-row: auto;
  min-height: 178px;
}

.figures-workspace .import-settings-card {
  min-width: 0;
  align-content: start;
}

.figures-workspace .figure-upload-button {
  width: 100%;
  white-space: nowrap;
}

.plagiarism-intro-grid {
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  align-items: stretch;
}

.plagiarism-intro-grid .card {
  padding: 22px;
}

.plagiarism-intro-grid .tip-list {
  margin-top: 12px;
}

.plagiarism-source-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(470px, 1.12fr) minmax(380px, 0.88fr);
  gap: 18px;
  align-items: start;
  margin: 18px 0;
}

.plagiarism-source-grid .drop-zone {
  grid-column: auto;
  grid-row: auto;
  min-height: 190px;
  align-self: start;
}

.source-upload-stack {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.source-side-stack {
  display: grid;
  gap: 12px;
  min-width: 0;
  align-content: start;
}

.source-limit-card,
.source-url-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.source-limit-card {
  grid-template-columns: minmax(0, 0.82fr) minmax(220px, 1fr);
  align-items: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(239, 248, 245, 0.74)),
    rgba(255, 255, 255, 0.74);
}

.source-limit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.source-limit-grid span {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 11px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(31, 138, 112, 0.12);
}

.source-limit-grid strong {
  color: var(--accent-strong);
  font-size: 1rem;
  line-height: 1;
}

.source-limit-grid small,
.source-url-card small {
  color: var(--muted);
  line-height: 1.45;
}

.source-url-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.source-url-count {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34, 50, 56, 0.07);
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
}

.url-field-list {
  display: grid;
  gap: 8px;
}

.url-field-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 32px;
  gap: 8px;
  align-items: center;
}

.url-field-number,
.url-remove-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
}

.url-field-number {
  background: rgba(31, 138, 112, 0.12);
  color: var(--accent-strong);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
}

.url-field-row input {
  min-width: 0;
  min-height: 40px;
  width: 100%;
  border: 1px solid rgba(39, 54, 59, 0.12);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  padding: 9px 12px;
}

.url-remove-button {
  border: 0;
  background: rgba(34, 50, 56, 0.08);
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1;
}

.url-remove-button:not(:disabled):hover {
  background: rgba(184, 79, 79, 0.12);
  color: var(--danger);
}

.url-add-button {
  justify-self: start;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.url-add-button span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: rgba(31, 138, 112, 0.13);
  color: var(--accent-strong);
  font-weight: 900;
}

.plagiarism-source-submit {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
}

.plagiarism-target-grid {
  position: relative;
  grid-template-columns: minmax(470px, 1.12fr) minmax(360px, 0.88fr);
  gap: 18px;
  align-items: stretch;
  margin-top: 22px;
}

.plagiarism-target-grid .drop-zone {
  min-height: 178px;
  grid-row: auto;
}

.plagiarism-target-grid .import-settings-card {
  align-content: center;
  min-height: 178px;
}

.plagiarism-target-grid .action-row {
  margin-top: 12px;
}

.plagiarism-target-grid .action-row .primary-button,
.plagiarism-target-grid .action-row .ghost-button {
  min-height: 44px;
}

.plagiarism-source-grid.is-disabled,
.plagiarism-target-grid.is-disabled {
  opacity: 0.72;
}

.plagiarism-source-grid.is-loading > :not(.form-loading),
.plagiarism-target-grid.is-loading > :not(.form-loading) {
  opacity: 0.58;
}

.form-loading {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  min-height: 100%;
  padding: 18px;
  border: 1px solid rgba(31, 138, 112, 0.18);
  border-radius: 24px;
  background: rgba(251, 253, 251, 0.78);
  box-shadow: 0 18px 42px rgba(34, 50, 56, 0.12);
  color: var(--accent-strong);
  font-weight: 800;
  text-align: center;
  backdrop-filter: blur(12px);
}

.form-loading[hidden] {
  display: none;
}

.loading-spinner {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  border: 3px solid rgba(31, 138, 112, 0.16);
  border-top-color: var(--accent);
  border-radius: 999px;
  animation: spin 0.72s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  clip-path: inset(50%) !important;
  opacity: 0 !important;
}

.figures-examples-card {
  margin-top: 18px;
}

.figure-settings-card {
  margin-top: 8px;
}

.figure-style-grid {
  margin-top: 18px;
}

.figure-output-card {
  margin-top: 22px;
}

.figure-canvas {
  min-height: 420px;
  margin-top: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  overflow: auto;
}

.figure-canvas.is-empty {
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.58);
  border-style: dashed;
}

.publication-svg {
  display: block;
  width: 100%;
  min-width: 680px;
  height: auto;
  border-radius: 18px;
  box-shadow: inset 0 0 0 1px rgba(34, 50, 56, 0.06);
}

.publication-table-shell {
  --table-accent: #1f8a70;
  --table-soft: rgba(31, 138, 112, 0.08);
  --table-rule: rgba(34, 50, 56, 0.12);
  display: grid;
  gap: 12px;
  min-width: 760px;
}

.publication-table-shell.theme-journal {
  --table-accent: #1f2933;
  --table-soft: rgba(34, 50, 56, 0.06);
  --table-rule: rgba(34, 50, 56, 0.24);
}

.publication-table-shell.theme-soft {
  --table-accent: #b1782d;
  --table-soft: rgba(177, 120, 45, 0.11);
  --table-rule: rgba(177, 120, 45, 0.22);
}

.publication-table-title {
  margin: 0;
  color: var(--text);
  font-weight: 800;
  font-size: 1.05rem;
}

.publication-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: var(--table-font-size, 14px);
  border-top: 2px solid var(--table-accent);
  border-bottom: 2px solid var(--table-accent);
}

.publication-table th,
.publication-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--table-rule);
  text-align: left;
  vertical-align: top;
}

.publication-table th {
  background: var(--table-soft);
  color: var(--text);
  font-weight: 800;
}

.publication-table-shell.is-compact .publication-table th,
.publication-table-shell.is-compact .publication-table td {
  padding: 8px 11px;
}

.publication-table-shell.has-grid .publication-table th,
.publication-table-shell.has-grid .publication-table td {
  border: 1px solid var(--table-rule);
}

.publication-table-shell.has-zebra .publication-table tbody tr:nth-child(even) {
  background: rgba(34, 50, 56, 0.035);
}

.randomization-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  align-items: end;
}

.selection-panels {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

#randomizationForm {
  margin-bottom: 26px;
}

#randomizationForm .field input,
#randomizationForm .field select {
  height: 42px;
  min-height: 42px;
  padding: 8px 12px;
  font-size: 0.9rem;
}

#randomizationForm .field select[multiple] {
  height: 42px;
  min-height: 42px;
  overflow: hidden;
}

#randomizationForm .action-row {
  margin-top: 16px;
}

.generated-list-button {
  min-height: 48px;
}

.randomization-results {
  margin-top: 0;
}

.factor-form-block {
  display: grid;
  gap: 20px;
  margin: 26px 0;
}

.compact-section-head {
  margin-bottom: 0;
}

.card {
  padding: 20px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
}

#factorWorkspace > .grid {
  margin-top: 18px;
}

#factorWorkspace .card {
  border-radius: 24px;
}

.factor-form-block .card,
.factor-result-card,
.factor-notes-card {
  padding: 22px;
}

.factor-results-grid {
  margin-top: 20px;
}

.factor-results-grid + .factor-results-grid {
  margin-top: 18px;
}

.factor-result-card .table-wrap {
  margin-top: 16px;
}

.match-list {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.match-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(39, 54, 59, 0.08);
}

.match-card h4 {
  margin: 0;
}

.match-chip-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.match-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.match-columns > div {
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.64);
  border: 1px solid rgba(39, 54, 59, 0.06);
}

.match-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.match-columns p {
  margin: 8px 0 0;
  line-height: 1.55;
}

.factor-notes-card {
  margin-top: 18px;
}

.factor-notes-list {
  margin: 14px 0 0;
}

.inline-warning-list {
  margin: 14px 0 0;
  padding: 14px 18px;
  border-top: 1px solid rgba(39, 54, 59, 0.08);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.summary-tile {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(39, 54, 59, 0.08);
}

.summary-tile span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.summary-tile strong {
  display: block;
  margin-top: 10px;
  font-size: 1.5rem;
}

.risk-dashboard {
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(320px, 1.6fr);
  gap: 14px;
  margin: 0 0 18px;
}

.risk-score-card,
.analytics-metric {
  border: 1px solid rgba(39, 54, 59, 0.08);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 16px 34px rgba(41, 56, 62, 0.08);
}

.risk-score-card {
  display: grid;
  align-content: space-between;
  min-height: 190px;
  padding: 20px;
  border-radius: 20px;
}

.risk-score-card span,
.analytics-metric span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.risk-score-card strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 0.95;
}

.risk-score-card small,
.analytics-metric small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.risk-score-card.high strong,
.risk-score-card.moderate strong {
  color: var(--warn);
}

.risk-score-card.minimal strong,
.risk-score-card.low strong {
  color: var(--accent-strong);
}

.risk-meter {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(39, 54, 59, 0.08);
}

.risk-meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--warn));
}

.analytics-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.analytics-metric {
  min-height: 116px;
  padding: 16px;
  border-radius: 18px;
}

.analytics-metric strong {
  display: block;
  margin-top: 8px;
  font-size: 1.5rem;
  line-height: 1.1;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-weight: 700;
  font-size: 0.92rem;
}

.field-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 24px;
}

.field input,
.field select,
.field textarea,
.inline-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(39, 54, 59, 0.12);
  border-radius: var(--radius-sm);
  background: white;
  padding: 12px 14px;
  color: var(--text);
}

.field textarea {
  min-height: 128px;
  resize: vertical;
}

.field small {
  color: var(--muted);
  line-height: 1.45;
}

.source-url-field {
  margin: 14px 0 16px;
}

.field select[multiple] {
  min-height: 128px;
}

.field select.is-empty-select,
.field select[multiple].is-empty-select {
  min-height: 52px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
}

.info-tip {
  position: relative;
  display: inline-block;
}

.info-tip summary {
  list-style: none;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: rgba(31, 138, 112, 0.12);
  color: var(--accent-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-weight: 800;
  cursor: pointer;
  user-select: none;
}

.info-tip summary:focus-visible {
  outline: 3px solid rgba(31, 138, 112, 0.2);
  outline-offset: 2px;
}

.info-tip summary::-webkit-details-marker {
  display: none;
}

.info-tip[open] summary {
  background: rgba(31, 138, 112, 0.22);
}

.info-tip-card {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  z-index: 12;
  width: min(280px, 70vw);
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(34, 50, 56, 0.96);
  color: white;
  line-height: 1.45;
  font-size: 0.84rem;
  font-weight: 500;
  box-shadow: 0 18px 30px rgba(36, 53, 58, 0.18);
}

.toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.7);
  padding: 12px 16px;
  border-radius: 999px;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.check-grid .empty-state {
  grid-column: 1 / -1;
}

.check-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
}

.warning-list,
.modal-list {
  display: grid;
  gap: 10px;
  padding-left: 18px;
}

.warning-list li {
  color: var(--warn);
}

.warning-list .quiet-list-item {
  color: var(--muted);
}

.warning-list .upload-warning-item {
  color: #8a5a12;
  font-weight: 700;
}

.modal-note {
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.94rem;
}

.table-wrap {
  overflow: auto;
  margin-top: 14px;
  border-radius: 18px;
  border: 1px solid rgba(39, 54, 59, 0.08);
  background: rgba(255, 255, 255, 0.52);
}

.empty-state {
  display: grid;
  gap: 6px;
  min-height: 74px;
  align-content: center;
  padding: 18px 20px;
  color: var(--muted);
}

.empty-state strong {
  color: var(--text);
  font-size: 0.98rem;
}

.empty-state span {
  line-height: 1.45;
  font-size: 0.9rem;
}

.empty-state-compact {
  min-height: 58px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.56);
  border: 1px dashed rgba(39, 54, 59, 0.1);
}

.empty-state-table {
  min-height: 68px;
}

.empty-row td {
  padding: 0;
}

.data-table {
  width: 100%;
  min-width: max(100%, 720px);
  border-collapse: collapse;
  table-layout: fixed;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid rgba(39, 54, 59, 0.08);
  vertical-align: top;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.data-table th {
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.mono {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
}

.chip {
  display: inline-flex;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
}

.chip.warn {
  background: rgba(182, 126, 44, 0.14);
  color: var(--warn);
}

.chip.pass {
  background: rgba(31, 138, 112, 0.12);
  color: var(--accent-strong);
}

.chip.fail {
  background: rgba(184, 79, 79, 0.12);
  color: var(--danger);
}

.chip.warn {
  background: rgba(182, 126, 44, 0.12);
  color: var(--warn);
}

.chart-frame {
  position: relative;
  height: clamp(250px, 30vw, 340px);
  margin-top: 14px;
}

.chart-frame canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.chart-frame.is-empty {
  border: 1px dashed rgba(39, 54, 59, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.45);
}

.chart-frame.is-empty canvas {
  opacity: 0;
}

.chart-empty-label {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  padding: 20px;
  color: var(--muted);
  text-align: center;
}

.chart-frame.is-empty .chart-empty-label {
  display: grid;
}

.modal {
  border: 0;
  background: transparent;
  padding: 0;
}

.modal::backdrop {
  background: rgba(23, 35, 40, 0.34);
  backdrop-filter: blur(6px);
}

.modal-card {
  width: min(680px, calc(100vw - 32px));
  border-radius: var(--radius-lg);
  background: white;
  padding: 24px;
  box-shadow: var(--shadow);
}

.icon-button {
  border: 0;
  background: transparent;
  font-size: 1.6rem;
  line-height: 1;
}

.toast-stack {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 10px;
  z-index: 20;
}

.toast {
  min-width: 260px;
  padding: 14px 16px;
  border-radius: 18px;
  color: white;
  background: rgba(34, 50, 56, 0.92);
  box-shadow: var(--shadow);
  animation: toast-in 240ms ease;
}

.toast.error {
  background: rgba(184, 79, 79, 0.96);
}

.reveal {
  animation: rise-in 420ms ease both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 1120px) {
  .hero,
  .two-up,
  .match-columns,
  .risk-dashboard,
  .selection-panels,
  .guardrail-list,
  .factor-intro-grid,
  .factor-flow-list {
    grid-template-columns: 1fr;
  }

  .module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .factor-intro-grid .science-note-card {
    grid-row: auto;
  }

  .mapping-grid,
  .analysis-grid,
  .randomization-grid,
  .factor-mapping-grid,
  .mode-grid,
  .power-grid,
  .upload-grid,
  .factor-upload-grid,
  .plagiarism-source-grid,
  .plagiarism-target-grid {
    grid-template-columns: 1fr;
  }

  .drop-zone,
  .upload-side > .helper-card:nth-of-type(1),
  .primary-button-wide {
    grid-column: 1;
    grid-row: auto;
  }

  .delimiter-toolbar {
    grid-template-columns: 1fr;
  }

  .section-head,
  .card-head {
    flex-direction: column;
  }

  .section-actions {
    justify-items: start;
  }

  .source-limit-card {
    grid-template-columns: minmax(0, 0.82fr) minmax(260px, 1fr);
  }

  .source-limit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .step-guide-row {
    justify-content: flex-start;
  }
}

@media (max-width: 820px) {
  .hero-topline {
    flex-direction: column;
  }

  .language-switcher {
    width: 100%;
  }

  .analytics-mini-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100vw - 18px, 100%);
    padding-top: 18px;
  }

  .hero-topline {
    gap: 16px;
  }

  .hero-copy h1 {
    font-size: 2.18rem;
    line-height: 1.05;
  }

  .lede {
    font-size: 0.94rem;
    line-height: 1.55;
  }

  .hub-head {
    padding: 18px;
  }

  .module-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .module-card {
    min-height: 184px;
    padding: 20px;
    border-radius: 22px;
  }

  .module-card h3 {
    margin-top: 38px;
    max-width: 16ch;
    font-size: 1.58rem;
  }

  .module-number {
    font-size: 1.9rem;
  }

  .panel,
  .card,
  .modal-card {
    padding: 18px;
  }

  .panel {
    scroll-margin-top: 74px;
  }

  .sticky-bar {
    top: 6px;
    gap: 6px;
    padding: 7px;
    margin-bottom: 14px;
    overflow-x: auto;
    border-radius: 20px;
  }

  .factor-sticky-bar .tool-home-button,
  .factor-sticky-bar .status-pill {
    min-height: 36px;
  }

  .step-chip,
  .preset-button,
  .ghost-button,
  .primary-button,
  .export-button,
  .tool-home-button {
    padding: 9px 12px;
    font-size: 0.88rem;
  }

  .tool-divider {
    margin: 2px 0;
  }

  .drop-zone {
    min-height: 0;
    padding: 18px;
  }

  .upload-actions {
    gap: 8px;
  }

  .browse-button,
  .file-pill {
    min-height: 40px;
    padding: 9px 12px;
  }

  .file-pill {
    flex: 1 1 190px;
    min-width: 0;
  }

  .plagiarism-source-grid .drop-zone,
  .plagiarism-target-grid .drop-zone,
  .plagiarism-target-grid .import-settings-card {
    min-height: 0;
  }

  .source-limit-card {
    grid-template-columns: 1fr;
  }

  .source-url-head {
    align-items: flex-start;
  }

  .url-field-row {
    grid-template-columns: 26px minmax(0, 1fr) 30px;
    gap: 6px;
  }

  .url-field-number,
  .url-remove-button {
    width: 26px;
    height: 26px;
  }

  .sample-item {
    grid-template-columns: 1fr;
  }

  .analytics-mini-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .risk-score-card {
    min-height: 0;
  }

  .download-button {
    width: 100%;
  }

  .data-table {
    min-width: 640px;
  }
}