:root {
  --bg: #09101b;
  --panel: #101a29;
  --panel-soft: #0c1522;
  --line: #243247;
  --text: #eef4ff;
  --muted: #9cabc0;
  --blue: #4f7cff;
  --green: #35c982;
  --yellow: #e8b84a;
  --red: #f06767;
}

* {
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: #40526b #070d16;
}

*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: #070d16; }
*::-webkit-scrollbar-thumb {
  background: #40526b;
  border: 2px solid #070d16;
  border-radius: 999px;
}
*::-webkit-scrollbar-thumb:hover { background: #526985; }

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg);
  background-image: radial-gradient(circle at top, #15243a 0, var(--bg) 38rem);
  background-position: top center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  color: var(--text);
  line-height: 1.45;
}

body.modal-open { overflow: hidden; }
button, input, textarea { font: inherit; }

.wrap { min-height: 100vh; max-width: 1500px; margin: 0 auto; padding: 28px; display: flex; flex-direction: column; }

.header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 22px;
}
.header-copy { flex: 1 1 auto; min-width: 0; }

.eyebrow { color: #8eaaff; font-size: 12px; font-weight: 700; letter-spacing: .06em; }
h1 { margin: 6px 0 4px; font-size: 34px; }
h2 { margin: 4px 0 0; font-size: 19px; }
.subtitle { color: var(--muted); margin: 6px 0 0; font-size: 13px; }

.input-grid, .sample-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.sample-grid { margin-top: 18px; align-items: start; }

.card { background: rgba(16, 26, 41, .96); border: 1px solid var(--line); border-radius: 16px; padding: 18px; box-shadow: 0 18px 48px rgba(0,0,0,.24); }
.card-heading, .modal-heading { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; }
.heading-actions, .toolbar, .settings-actions, .mini-actions { display: flex; gap: 9px; align-items: center; }
.heading-actions { justify-content: flex-end; flex-wrap: wrap; }
.sample-kind { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.human-kind { color: var(--green); }
.synthetic-kind { color: var(--red); }
.helper, .sample-status { color: var(--muted); font-size: 13px; }
.helper { margin: 10px 0; }

.typing-area { width: 100%; min-height: 110px; border: 1px solid var(--line); border-radius: 12px; background: #080f19; color: var(--text); padding: 13px; resize: vertical; outline: none; }
.typing-area:focus, .json-panel:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(79,124,255,.14); }
.human-text-area { min-height: 82px; }
.synthetic-text-area { min-height: 100px; height: 100px; }
.typing-area[readonly] { cursor: default; }

.toolbar { justify-content: space-between; margin-top: 10px; }
.toolbar.status-only { justify-content: flex-start; }
.settings-actions {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin: 12px 0;
}
.settings-text-length {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}
.settings-text-length input[type="number"] {
  width: 86px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #080f19;
  color: var(--text);
  padding: 8px;
}

.btn { border: 1px solid var(--line); border-radius: 10px; height: 37px; padding: 0 12px; background: #152136; color: var(--text); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; }
.btn:hover { border-color: #476187; }
.btn:focus-visible { outline: 3px solid rgba(79,124,255,.32); outline-offset: 2px; }
.btn:disabled { opacity: .42; cursor: not-allowed; }
.btn.primary, .btn.analyze { background: var(--blue); border-color: var(--blue); color: white; }
.btn.analyze {
  width: auto;
  margin: 0;
  font-weight: 750;
}
.btn.ghost { background: transparent; }

.icon-btn { width: 37px; height: 37px; padding: 8px; display: inline-grid; place-items: center; }
.icon-btn svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-btn.copied { color: var(--green); border-color: rgba(53,201,130,.72); }
.close-btn { width: 40px; height: 40px; flex: 0 0 auto; }

.stats-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 10px; }
.stat-chip { background: var(--panel-soft); border: 1px solid #1b293d; color: var(--muted); border-radius: 999px; padding: 5px 9px; font-size: 12px; }
.json-panel {
  display: block;
  width: 100%;
  margin: 0;
  height: 175px;
  overflow: auto;
  resize: vertical;
  background: #030811;
  border: 1px solid #1e2a3d;
  border-radius: 12px;
  padding: 11px;
  color: #c9d7e9;
  font: 9.5px/1.32 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre;
  outline: none;
}

.result-panel { margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; padding: 14px; background: #090f19; }
.hidden { display: none !important; }
.result-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.result-label { font-size: 22px; font-weight: 800; }
.result-score { font-size: 34px; font-weight: 850; }
.result-meta { color: var(--muted); font-size: 12px; margin-top: 8px; }
.score-track {
  height: 5px;
  border-radius: 999px;
  margin: 21px 0 8px;
  position: relative;
  background: linear-gradient(90deg, var(--red) 0 40%, var(--yellow) 40% 60%, var(--green) 60% 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .08);
}
.score-marker {
  position: absolute;
  top: 50%;
  height: 29px;
  width: 4px;
  background: white;
  border-radius: 3px;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 1px rgba(5, 10, 18, .7), 0 0 9px rgba(255, 255, 255, .42);
}
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(2, 7, 14, .76);
  backdrop-filter: blur(5px);
}

.modal-card {
  width: min(1120px, 100%);
  max-height: min(86vh, 900px);
  display: flex;
  flex-direction: column;
  background: #101a29;
  border: 1px solid #31445f;
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, .52);
}

.modal-heading { align-items: center; }
.settings-helper { margin-bottom: 0; }
.settings-scroll { overflow: auto; padding: 2px 4px 4px 0; }
.settings-category {
  margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0b1421;
}
.settings-category summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.settings-category summary::-webkit-details-marker { display: none; }
.settings-category summary::after {
  content: "+";
  color: #8eaaff;
  font-size: 18px;
  line-height: 1;
}
.settings-category[open] summary::after { content: "−"; }
.settings-category summary small {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
  font-weight: 550;
}
.settings-category-body {
  padding: 0 12px 12px;
  border-top: 1px solid rgba(36, 50, 71, .7);
}
.settings-toggle-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin-bottom: 12px;
}
.plain-check-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
}
.plain-check-label input[type="checkbox"] { margin: 0; }
.settings-secondary-row { margin-top: 10px; }
.settings-category[open] .settings-category-body { padding-top: 12px; }
.complex-settings-category { border-color: #59455d; }
.settings-grid { display: grid; grid-template-columns: repeat(3, minmax(150px, 1fr)); gap: 10px; }
.settings-grid label { display: flex; flex-direction: column; gap: 5px; color: var(--muted); font-size: 12px; }
.settings-grid input[type="number"] { width: 112px; max-width: 100%; border: 1px solid var(--line); border-radius: 9px; background: #080f19; color: var(--text); padding: 8px; }
.setting-label-line, .check-text { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.info-tip {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  border: 1px solid #607089;
  border-radius: 50%;
  color: #b9c8ff;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  user-select: none;
}
.info-tip:hover { border-color: #8eaaff; color: #eef4ff; }
.info-tip:focus-visible { outline: 2px solid rgba(79,124,255,.72); outline-offset: 2px; }

.info-tooltip {
  position: fixed;
  z-index: 10000;
  max-width: min(300px, calc(100vw - 16px));
  padding: 8px 10px;
  border: 1px solid #51657f;
  border-radius: 8px;
  background: #050a12;
  color: #eef4ff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .42);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.35;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(3px);
  transition: opacity .12s ease, transform .12s ease, visibility .12s ease;
}

.info-tooltip.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

footer { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: auto; color: var(--muted); font-size: 12px; padding: 18px 2px 2px; }
footer .footer-links { margin-left: 0; display: flex; align-items: center; gap: 8px; }
footer a { color: #a9bdff; }
.footer-separator { color: #607089; }

@media (max-width: 1120px) {
  .card-heading { flex-direction: column; }
  .heading-actions { justify-content: flex-start; }
}

@media (max-width: 1000px) {
  .sample-workspace {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .sample-workspace > .input-grid,
  .sample-workspace > .sample-grid {
    display: contents;
  }
  [data-workspace-card="human-input"] { order: 1; }
  [data-workspace-card="human-data"] { order: 2; }
  [data-workspace-card="synthetic-input"] { order: 3; }
  [data-workspace-card="synthetic-data"] { order: 4; }
  .card-heading { flex-direction: row; }
}

@media (max-width: 720px) {
  .wrap { padding: 16px; }
  .header { flex-direction: column; }
  h1 {
    font-size: clamp(20px, 6.6vw, 26px);
    letter-spacing: -.025em;
    white-space: nowrap;
  }
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .card-heading { flex-direction: column; }
  [data-workspace-card="human-input"] .card-heading {
    flex-direction: row;
    align-items: flex-start;
  }
  [data-workspace-card="human-input"] .card-heading > div { min-width: 0; }
  #resetHumanBtn { flex: 0 0 auto; }
  .heading-actions { width: 100%; justify-content: flex-start; }
  .heading-actions .btn { flex: 1 1 auto; }
  .modal-overlay { padding: 10px; }
  .modal-card { max-height: 94vh; }
}

@media (max-width: 480px) {
  .settings-grid { grid-template-columns: 1fr; }
  .heading-actions { flex-direction: column; align-items: stretch; }
}

/* Human sample privacy consent gate */
.privacy-consent {
  margin-top: 10px;
}
.privacy-consent-label {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  cursor: pointer;
}
.privacy-consent-label input[type="checkbox"] {
  margin: 2px 0 0;
  flex: 0 0 auto;
}
.privacy-consent-label a {
  color: #a9bdff;
}
.privacy-consent-notice {
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid rgba(240, 103, 103, .55);
  border-radius: 9px;
  background: rgba(240, 103, 103, .08);
  color: #ffc1c1;
  font-size: 12px;
}
.human-text-area[readonly] {
  cursor: text;
  opacity: .82;
}

/* Pre-demo privacy gate */
.demo-shell.consent-locked {
  display: none;
}

body.consent-pending {
  min-height: 100vh;
}

.consent-gate {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(28px, 8vh, 86px) 18px 40px;
}

.consent-card {
  width: min(100%, 560px);
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .24);
}

.consent-title {
  margin: 8px 0 20px;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.15;
  white-space: normal;
}

.consent-check-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--text);
  cursor: pointer;
}

.consent-check-label input[type="checkbox"] {
  margin: 3px 0 0;
  flex: 0 0 auto;
}

.consent-check-label a,
.consent-note a {
  color: #a9bdff;
}

.consent-start-btn {
  width: 100%;
  margin-top: 22px;
  min-height: 44px;
}

.consent-start-btn:disabled {
  cursor: not-allowed;
  opacity: .45;
}

.consent-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

@media (max-width: 600px) {
  .consent-gate {
    padding: 22px 12px 30px;
  }
  .consent-card {
    padding: 18px;
    border-radius: 14px;
  }
}