:root {
  color-scheme: light;
  --blue: #1f82c0;
  --blue-deep: #116592;
  --blue-pale: #e8f3f9;
  --green: #009374;
  --green-pale: #e3f2ee;
  --lime: #b1c800;
  --ink: #2b333f;
  --text: #555555;
  --muted: #73808a;
  --line: #c7cacc;
  --line-soft: #e4e8e9;
  --paper: #ffffff;
  --canvas: #f3f5f5;
  --error: #c64638;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--paper); }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: Frutiger, FrutigerLTW02, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: 6px;
  background: var(--green);
  z-index: 20;
}

button,
input,
textarea { font: inherit; letter-spacing: 0; }

[hidden] { display: none !important; }

.research-header {
  width: min(1240px, calc(100% - 64px));
  height: 104px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.partner-lockup {
  display: flex;
  align-items: center;
  gap: 18px;
}

.partner-logo {
  width: auto;
  height: 40px;
  display: block;
  object-fit: contain;
}

.partner-divider {
  width: 1px;
  height: 34px;
  flex: 0 0 auto;
  background: var(--line);
}

.institute-context {
  display: grid;
  justify-items: end;
  line-height: 1.2;
}

.institute-context span { color: var(--muted); font-size: .7rem; text-transform: uppercase; }
.institute-context strong { margin-top: 5px; color: var(--blue); font-size: .9rem; font-weight: 500; }

main {
  width: min(1240px, calc(100% - 64px));
  min-height: calc(100vh - 176px);
  margin: 0 auto;
  padding: 64px 0 84px;
}

h1,
h2,
p { margin-top: 0; }

h1 {
  margin-bottom: 20px;
  color: var(--ink);
  font-size: 3.4rem;
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0;
}

.category,
.overline {
  margin-bottom: 12px;
  color: var(--blue);
  font-size: .76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.lead {
  max-width: 660px;
  margin-bottom: 0;
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 300;
  line-height: 1.62;
}

.welcome-grid {
  min-height: 610px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(370px, .8fr);
  gap: 110px;
  align-items: center;
}

.welcome-copy {
  position: relative;
  padding-left: 38px;
}

.welcome-copy::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: var(--blue);
}

.welcome-copy h1 { max-width: 710px; }

.project-facts {
  max-width: 680px;
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.project-facts div {
  min-height: 78px;
  padding: 16px 18px 14px 0;
  display: grid;
  align-content: center;
  border-right: 1px solid var(--line-soft);
}

.project-facts div:not(:first-child) { padding-left: 18px; }
.project-facts div:last-child { border-right: 0; }
.project-facts span { color: var(--muted); font-size: .68rem; text-transform: uppercase; }
.project-facts strong { margin-top: 4px; color: var(--ink); font-size: .86rem; font-weight: 500; }

.access-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 36px 0 34px;
  border-top: 5px solid var(--green);
  border-bottom: 1px solid var(--line);
}

.form-heading { margin-bottom: 12px; }
.form-heading .overline { margin-bottom: 7px; color: var(--green); }

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--ink);
  font-size: .87rem;
  font-weight: 500;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid #9aa2a8;
  border-radius: 0;
  outline: none;
  background: var(--paper);
  color: var(--ink);
  transition: border-color .14s ease, box-shadow .14s ease;
}

.field input { height: 48px; padding: 0 13px; }
.field textarea { min-height: 132px; padding: 12px 13px; resize: vertical; }

.field input:focus,
.field textarea:focus {
  border-color: var(--blue);
  box-shadow: inset 4px 0 0 var(--blue);
}

fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
legend { padding: 0; }

.segmented {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid #9aa2a8;
}

.segmented label,
.rating-scale label { min-width: 0; cursor: pointer; }

.segmented input,
.rating-scale input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented label > span {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  font-size: .84rem;
  font-weight: 500;
}

.segmented label:last-child > span { border-right: 0; }
.segmented input:checked + span { background: var(--blue-pale); color: var(--blue-deep); box-shadow: inset 0 -4px 0 var(--blue); }
.segmented input:focus-visible + span,
.rating-scale input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: -3px; }

button {
  min-height: 46px;
  border: 1px solid var(--blue);
  border-radius: 0;
  background: var(--paper);
  color: var(--blue-deep);
  cursor: pointer;
  transition: background .14s ease, border-color .14s ease, color .14s ease;
}

button:hover:not(:disabled) { background: var(--blue-pale); }
button:focus-visible { outline: 3px solid rgba(31, 130, 192, .3); outline-offset: 3px; }
button:disabled { opacity: .46; cursor: default; }

.primary-action {
  min-height: 52px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 52px;
  align-items: stretch;
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
}

.primary-action .button-label {
  min-width: 0;
  padding: 0 16px;
  display: grid;
  place-items: center;
}

.primary-action::after {
  content: "→";
  width: auto;
  align-self: stretch;
  display: grid;
  place-items: center;
  border-left: 1px solid rgba(255,255,255,.35);
  font-size: 1.15rem;
  font-weight: 300;
}

.primary-action:hover:not(:disabled) { border-color: var(--blue-deep); background: var(--blue-deep); }
.msg { min-height: 1.2em; color: var(--error); font-size: .8rem; }

/* Briefing */
.briefing-view,
.feedback-view { max-width: 1020px; margin: 0 auto; }

.page-intro { max-width: 760px; margin-bottom: 54px; }
.page-intro h1 { font-size: 3rem; }

.briefing-list { border-top: 1px solid var(--line); }

.briefing-item {
  min-height: 158px;
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.item-index {
  color: var(--green);
  font-size: 2.4rem;
  font-weight: 200;
  line-height: 1;
}

.briefing-item h2 { margin-bottom: 10px; }
.briefing-item p { max-width: 710px; margin-bottom: 0; font-size: .94rem; line-height: 1.62; }

.briefing-action {
  min-height: 76px;
  padding: 12px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.system-ready { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .8rem; }
.system-ready span { width: 10px; height: 10px; background: var(--green); }
.system-ready strong { font-weight: 500; }
.briefing-action .primary-action { min-width: 190px; min-height: 48px; }

/* Session */
body[data-view="session"] { background: var(--paper); }
body[data-view="session"] .research-header { background: var(--paper); }
body[data-view="session"] main {
  width: min(1180px, calc(100% - 64px));
  padding-top: 40px;
}

.session-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.session-header h1 { margin-bottom: 0; font-size: 2.35rem; }
.session-header .category { margin-bottom: 8px; }

.session-live {
  min-height: 38px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  gap: 9px;
  border-left: 4px solid var(--green);
  background: var(--green-pale);
  color: var(--green);
  font-size: .72rem;
  text-transform: uppercase;
}

.session-live span { width: 8px; height: 8px; background: var(--green); }
.session-live strong { font-weight: 600; }

.research-console {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(330px, .85fr);
  gap: 20px;
  align-items: stretch;
}

.media-workspace,
.transcript-workspace { border: 1px solid var(--line); background: var(--paper); }

.media-workspace { display: flex; flex-direction: column; }

.workspace-label {
  min-height: 52px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: .82rem;
  font-weight: 600;
}

.workspace-label > span:last-child { color: var(--muted); font-size: .72rem; font-weight: 400; }

.scene { position: relative; background: #15191c; }

#patientImg {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  background: #15191c;
}

.status-strip {
  position: absolute;
  left: 0;
  bottom: 0;
  min-height: 44px;
  max-width: 90%;
  padding: 0 18px 0 42px;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.94);
  color: var(--ink);
  font-size: .8rem;
  font-weight: 500;
}

.status-strip::before {
  content: "";
  position: absolute;
  left: 20px;
  width: 10px;
  height: 10px;
  background: var(--green);
}

.status-strip[data-state="recording"] { background: rgba(198,70,56,.95); color: #fff; }
.status-strip[data-state="recording"]::before { background: #fff; }
.status-strip[data-state="thinking"]::before,
.status-strip[data-state="transcribing"]::before { background: var(--lime); }
.status-strip[data-state="unclear_audio"] { background: rgba(198,70,56,.95); color: #fff; }
.status-strip[data-state="unclear_audio"]::before { background: #fff; }
.status-strip[data-state="no_audio"]::before,
.status-strip[data-state="inference_offline"]::before,
.status-strip[data-state="error"]::before { background: var(--error); }

.voice-controls {
  padding: 14px 16px 13px;
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto;
  gap: 8px 12px;
  border-top: 5px solid var(--blue);
}

.talk {
  min-height: 50px;
  padding: 0 18px;
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.talk:hover:not(:disabled) { border-color: var(--blue-deep); background: var(--blue-deep); }
.talk.rec { border-color: var(--error); background: var(--error); }
.talk:disabled { opacity: .7; }

.end-action {
  min-height: 50px;
  padding: 0 16px;
  border-color: #8c969c;
  color: var(--ink);
}

.hint { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: .75rem; }

.turn-recovery {
  grid-column: 1 / -1;
  padding: 12px 0 2px 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-left: 4px solid var(--error);
}

.turn-recovery[hidden] { display: none; }
.turn-recovery p { margin: 0; color: var(--ink); font-size: .82rem; font-weight: 500; }
.turn-recovery-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.turn-recovery-actions button { min-height: 38px; padding: 0 12px; font-size: .76rem; }
.turn-recovery-actions button:first-child { border-color: var(--blue); color: var(--blue-deep); }

kbd {
  padding: 1px 5px;
  border: 1px solid #a9b0b5;
  background: #f1f3f3;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .84em;
}

.transcript-workspace { min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
.transcript-label { min-height: 68px; border-top: 5px solid var(--green); }
.transcript-label > div { display: grid; }
.transcript-label > div > span { color: var(--green); font-size: .65rem; text-transform: uppercase; letter-spacing: .08em; }
.transcript-label h2 { margin-top: 3px; font-size: 1.02rem; font-weight: 500; }

.transcript-body {
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px;
}

#transcript {
  height: auto;
  min-height: 0;
  padding: 22px 20px 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: none;
}

#transcript::-webkit-scrollbar { display: none; }

.transcript-scrollbar {
  position: relative;
  min-height: 0;
  border-left: 1px solid #c7cfd1;
  outline: none;
  background: #dfe4e5;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.transcript-scrollbar:focus-visible { box-shadow: inset 0 0 0 3px rgba(31, 130, 192, .38); }
.transcript-scrollbar[data-scrollable="false"] { cursor: default; }

.transcript-scrollbar-thumb {
  position: absolute;
  inset: 4px 2.5px auto;
  min-height: 56px;
  background: #6f7b82;
  cursor: grab;
}

.transcript-scrollbar-thumb:hover { background: #4f5c63; }
.transcript-scrollbar-thumb.dragging { background: #35434a; cursor: grabbing; }
.transcript-scrollbar[data-scrollable="false"] .transcript-scrollbar-thumb { cursor: default; }

#transcript:empty::before {
  content: attr(data-empty);
  width: 100%;
  margin: auto;
  color: var(--muted);
  font-size: .84rem;
  text-align: center;
}

.bubble {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 0;
  color: var(--ink);
  font-size: .86rem;
  white-space: pre-wrap;
}

.bubble.you { align-self: flex-end; border-right: 4px solid var(--blue); background: var(--blue-pale); }
.bubble.patient { align-self: flex-start; border-left: 4px solid var(--green); background: #eef1f1; }
/* System note for a dropped (unintelligible) turn — visibly not part of the dialogue. */
.bubble.note { align-self: center; color: var(--muted); font-style: italic; background: none; }

.msg-fb {
  max-width: 100%;
  align-self: flex-start;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: -3px 0 8px;
}

.msg-fb-btn { min-height: 30px; padding: 0 9px; border-color: var(--line); color: var(--muted); font-size: .7rem; }
.msg-fb-btn.yes.active { border-color: var(--green); background: var(--green-pale); color: var(--green); }
.msg-fb-btn.no.active { border-color: var(--error); background: #f8e9e7; color: var(--error); }

.msg-note {
  min-width: min(220px, 100%);
  height: 30px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  background: var(--paper);
  color: var(--ink);
  font-size: .72rem;
}

.msg-note:focus { border-color: var(--blue); }

/* Feedback */
.feedback-view { max-width: 900px; }

.evaluation-form {
  border-top: 5px solid var(--green);
  border-bottom: 1px solid var(--line);
}

.evaluation-row {
  padding: 30px 0;
  display: grid;
  grid-template-columns: minmax(260px, .9fr) minmax(360px, 1.1fr);
  gap: 40px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.evaluation-row legend { color: var(--ink); font-size: .92rem; font-weight: 500; }
small { color: var(--muted); font-size: .76rem; font-weight: 400; }

.rating-scale {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid #9aa2a8;
}

.rating-scale label > span {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--line);
  color: var(--ink);
  font-size: .9rem;
}

.rating-scale label:last-child > span { border-right: 0; }
.rating-scale input:checked + span { background: var(--green-pale); color: var(--green); box-shadow: inset 0 -5px 0 var(--green); }
.binary-choice { max-width: 320px; }

/* Four options in one row (waiting-time frequency question). */
.quad-choice { grid-template-columns: repeat(4, minmax(0, 1fr)); max-width: 640px; }
.quad-choice label > span { text-align: center; padding: 0 8px; }

.evaluation-group {
  padding: 30px 0 0;
  color: var(--ink);
  font-size: .92rem;
  font-weight: 500;
}

.evaluation-comments { gap: 12px; padding: 30px 0; border-bottom: 1px solid var(--line); }

.evaluation-footer {
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: .72rem;
}

.evaluation-footer .primary-action { min-width: 190px; }

/* Completion */
.thanks-view {
  min-height: calc(100vh - 310px);
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}

.completion-bar { height: 220px; background: var(--green); }
.thanks-view h1 { font-size: 4rem; }

.research-footer {
  width: min(1240px, calc(100% - 64px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .7rem;
}

@media (min-width: 1051px) {
  .transcript-workspace { height: 0; min-height: 100%; }
}

@media (max-width: 1050px) {
  .welcome-grid { grid-template-columns: 1fr 390px; gap: 64px; }
  .research-console { grid-template-columns: 1fr; }
  .transcript-workspace { height: 390px; min-height: 390px; }
  .transcript-body,
  #transcript { min-height: 0; }
}

@media (max-width: 760px) {
  .research-header,
  main,
  body[data-view="session"] main,
  .research-footer { width: min(100% - 32px, 620px); }

  .research-header { height: 82px; }
  .partner-lockup { gap: 12px; }
  .partner-logo { height: 32px; }
  .partner-divider { height: 28px; }
  .institute-context { display: none; }
  main { min-height: calc(100vh - 150px); padding: 42px 0 58px; }

  h1 { font-size: 2.35rem; }
  .lead { font-size: 1rem; }

  .welcome-grid { min-height: 0; grid-template-columns: 1fr; gap: 46px; align-items: start; }
  .welcome-copy { padding-left: 22px; }
  .welcome-copy::before { width: 6px; }
  .project-facts { margin-top: 32px; grid-template-columns: 1fr; }
  .project-facts div { min-height: 58px; padding: 12px 0; border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .project-facts div:not(:first-child) { padding-left: 0; }
  .project-facts div:last-child { border-bottom: 0; }

  .access-form { padding-top: 28px; }
  .page-intro { margin-bottom: 38px; }
  .page-intro h1 { font-size: 2.3rem; }

  .briefing-item { min-height: 0; grid-template-columns: 60px minmax(0, 1fr); gap: 18px; padding: 24px 0; }
  .item-index { font-size: 1.6rem; }
  .briefing-action {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 14px 0;
  }
  .briefing-action .primary-action { width: auto; }

  .session-header { align-items: center; }
  .session-header h1 { font-size: 2rem; }
  .voice-controls { grid-template-columns: 1fr; }
  .talk,
  .end-action { width: 100%; }
  .hint { grid-column: 1; }
  .status-strip { min-height: 40px; max-width: calc(100% - 14px); font-size: .72rem; }

  .evaluation-row { grid-template-columns: 1fr; gap: 18px; }
  .binary-choice { max-width: none; }
  /* Narrow screens: the four options stack 2x2, with a divider between rows
     and no trailing divider at each row's right edge. */
  .quad-choice { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: none; }
  .quad-choice label:nth-child(-n+2) > span { border-bottom: 1px solid var(--line); }
  .quad-choice label:nth-child(2n) > span { border-right: 0; }
  .evaluation-footer { align-items: stretch; flex-direction: column; padding: 22px 0; }
  .evaluation-footer .primary-action { width: 100%; }

  .research-footer { align-items: flex-start; flex-direction: column; justify-content: center; padding: 18px 0; }
  .research-footer span:last-child { display: none; }
}

@media (max-width: 430px) {
  .briefing-action { grid-template-columns: 1fr; }
  .briefing-action .primary-action { width: 100%; }
  h1 { font-size: 2rem; }
  .session-header h1 { font-size: 1.65rem; }
  .session-header .category { font-size: .66rem; }
  .session-live { padding: 0 10px; }
  .workspace-label { min-height: 50px; padding: 0 14px; }
  .voice-controls { padding: 14px; }
  .rating-scale label > span { min-height: 44px; }
  .thanks-view { grid-template-columns: 10px minmax(0, 1fr); gap: 28px; }
  .thanks-view h1 { font-size: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}