:root {
  color-scheme: light;
  --bg: #f4f8ff;
  --bg-accent: #e9f2ff;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: rgba(255, 255, 255, 0.98);
  --surface-soft: rgba(16, 122, 202, 0.08);
  --line: rgba(16, 73, 128, 0.12);
  --line-strong: rgba(16, 122, 202, 0.24);
  --text: #173153;
  --muted: #617896;
  --accent: #107aca;
  --accent-strong: #0a66c2;
  --accent-soft: #dcecff;
  --positive-soft: rgba(16, 122, 202, 0.14);
  --neutral-soft: rgba(91, 121, 155, 0.14);
  --shadow: 0 22px 60px rgba(16, 73, 128, 0.12);
  --dock-shadow: 0 16px 38px rgba(16, 73, 128, 0.18);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --font-display: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-body: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1f35;
  --bg-accent: #123152;
  --surface: rgba(15, 35, 58, 0.9);
  --surface-strong: rgba(16, 39, 66, 0.98);
  --surface-soft: rgba(117, 182, 255, 0.12);
  --line: rgba(166, 205, 255, 0.14);
  --line-strong: rgba(110, 175, 255, 0.3);
  --text: #f3f8ff;
  --muted: #b0c4e0;
  --accent: #4aa3ff;
  --accent-strong: #2192ff;
  --accent-soft: rgba(74, 163, 255, 0.16);
  --positive-soft: rgba(74, 163, 255, 0.16);
  --neutral-soft: rgba(176, 196, 224, 0.12);
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
  --dock-shadow: 0 18px 42px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(16, 122, 202, 0.14), transparent 24%),
    radial-gradient(circle at bottom right, rgba(16, 122, 202, 0.1), transparent 28%),
    linear-gradient(180deg, var(--bg), var(--bg-accent));
  color: var(--text);
  font-family: var(--font-body);
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(100%, 1280px);
  height: 100dvh;
  margin: 0 auto;
  padding: 10px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 10px;
}

.app-shell.is-locked .screen.is-active .screen-card {
  pointer-events: none;
}

.topbar,
.app-chrome,
.screen-card {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.topbar {
  border-radius: var(--radius-xl);
}

.app-chrome,
.screen-card {
  border-radius: var(--radius-lg);
}

.topbar {
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.brand-block,
.context-card,
.screen-heading,
.mini-card,
.option-card,
.detail-chip,
.answer-pill,
.result-actions > *,
.app-footer > * {
  min-width: 0;
}

.eyebrow,
.screen-step,
.context-label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.brand-block h1,
.screen-heading h2 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.brand-block h1 {
  font-size: clamp(1.85rem, 8vw, 3.4rem);
  line-height: 0.98;
}

.brand-copy,
.screen-copy,
.option-copy {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.brand-copy {
  max-width: 34rem;
  font-size: 0.92rem;
}

.theme-toggle,
.primary-button,
.ghost-button,
.option-card,
.answer-button {
  appearance: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease,
    opacity 180ms ease;
}

.theme-toggle,
.ghost-button,
.option-card,
.answer-no {
  background: var(--surface-strong);
  color: var(--text);
  border-color: var(--line);
}

.primary-button,
.answer-yes {
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 14px 26px rgba(16, 122, 202, 0.24);
}

.theme-toggle,
.primary-button,
.ghost-button {
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 16px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
}

.theme-toggle {
  width: 50px;
  min-width: 50px;
  padding: 0;
  display: inline-grid;
  place-items: center;
}

.theme-icon {
  width: 22px;
  height: 22px;
}

.theme-icon-sun,
html[data-theme="dark"] .theme-icon-moon {
  display: none;
}

html[data-theme="dark"] .theme-icon-sun {
  display: block;
}

html[data-theme="light"] .theme-icon-moon {
  display: block;
}

.theme-toggle:hover,
.primary-button:hover,
.ghost-button:hover,
.option-card:hover,
.answer-button:hover {
  transform: translateY(-1px);
}

.theme-toggle:focus-visible,
.primary-button:focus-visible,
.ghost-button:focus-visible,
.option-card:focus-visible,
.answer-button:focus-visible,
.field input:focus-visible {
  outline: 3px solid rgba(16, 122, 202, 0.24);
  outline-offset: 2px;
}

.app-chrome {
  padding: 10px;
  display: grid;
  gap: 10px;
}

.stepper {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.step-pill {
  min-width: 0;
  padding: 8px 6px;
  display: grid;
  justify-items: center;
  gap: 5px;
  border-radius: 16px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.step-pill.is-current {
  background: var(--accent-soft);
  border-color: var(--line-strong);
}

.step-pill.is-complete {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface-strong));
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
}

.step-number {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--surface-soft);
  color: var(--accent-strong);
}

.step-text {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--muted);
  text-align: center;
  overflow-wrap: anywhere;
}

.context-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.context-card,
.mini-card,
.detail-chip,
.answer-pill {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.context-card {
  padding: 8px 10px;
}

.context-value,
.mini-value {
  margin: 6px 0 0;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.28;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  overflow-wrap: anywhere;
}

.screen-stack {
  position: relative;
  min-height: 0;
}

.app-shell[data-screen="selection"] .screen-stack,
.app-shell[data-screen="question"] .screen-stack,
.app-shell[data-screen="result"] .screen-stack {
  padding-bottom: 62px;
}

.screen {
  display: none;
  height: 100%;
  min-height: 0;
}

.screen.is-active {
  display: block;
}

.screen-card {
  height: 100%;
  min-height: 0;
  padding: 14px;
  display: grid;
  gap: 12px;
  align-content: start;
  overflow: hidden;
}

.screen-heading {
  display: grid;
  gap: 6px;
}

.screen-heading h2 {
  font-size: clamp(1.35rem, 5.6vw, 2.6rem);
  line-height: 1.02;
}

.screen-copy {
  font-size: 0.92rem;
}

.patient-form {
  display: grid;
  gap: 10px;
}

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

.field span {
  font-weight: 700;
}

.field input {
  min-height: 52px;
  padding: 13px 15px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
}

.error-text {
  min-height: 1.2em;
  margin: 0;
  color: #d33f49;
}

.action-button {
  width: 100%;
  margin-top: auto;
}

.option-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
}

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

.option-card {
  min-height: 76px;
  padding: 12px 14px;
  border-radius: 20px;
  display: grid;
  gap: 4px;
  text-align: left;
}

.option-title {
  font-size: 0.98rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.option-copy {
  font-size: 0.88rem;
}

.question-card,
.result-card {
  grid-template-rows: auto auto 1fr;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.question-index,
.question-journey,
.result-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  max-width: 100%;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--accent-strong);
  white-space: normal;
  overflow-wrap: anywhere;
}

.result-badge.is-positive {
  background: var(--positive-soft);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
}

.result-badge.is-neutral {
  background: var(--neutral-soft);
  color: var(--text);
}

.detail-chips,
.answer-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.detail-chip {
  padding: 8px 10px;
  font-size: 0.8rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: auto;
}

.answer-button {
  min-height: 64px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 20px;
  font-size: 1rem;
  font-weight: 700;
  background: var(--surface-strong);
  color: var(--text);
  border-color: var(--line);
  box-shadow: none;
}

.answer-yes {
  background: var(--surface-soft);
  color: var(--accent-strong);
  border-color: var(--line-strong);
  box-shadow: none;
}

.answer-no {
  background: var(--surface-strong);
  color: var(--text);
  border-color: var(--line);
}

.result-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.mini-card {
  padding: 12px;
}

.answer-pill {
  min-height: 40px;
  padding: 8px 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

.answer-pill span {
  color: var(--muted);
  font-weight: 700;
}

.answer-pill strong {
  font-size: 0.9rem;
}

.answer-pill.yes {
  background: rgba(16, 122, 202, 0.1);
}

.answer-pill.no {
  background: rgba(91, 121, 155, 0.12);
}

.answer-pill.neutral {
  background: var(--surface-soft);
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.result-actions > * {
  flex: 1 1 140px;
}

.sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  padding: 14px;
  display: grid;
  place-items: center;
  background: rgba(10, 24, 41, 0.34);
  backdrop-filter: blur(10px);
}

.sheet-card {
  width: min(100%, 560px);
  padding: 18px;
  display: grid;
  gap: 12px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: var(--shadow);
}

.sheet-heading {
  display: grid;
  gap: 6px;
}

.sheet-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 4vw, 1.75rem);
  line-height: 1.04;
}

.sheet-field-grid {
  display: grid;
  gap: 10px;
}

.sheet-preview {
  min-height: 72px;
  padding: 12px 14px;
  display: grid;
  gap: 6px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.sheet-preview strong,
.sheet-preview span {
  overflow-wrap: anywhere;
}

.sheet-preview strong {
  font-size: 0.94rem;
}

.sheet-preview span {
  color: var(--muted);
  line-height: 1.4;
}

.sheet-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sheet-actions > * {
  flex: 1 1 180px;
}

.app-footer {
  width: min(calc(100% - 20px), 360px);
  padding: 5px;
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  position: fixed;
  left: 50%;
  bottom: max(10px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 20;
  min-height: 0;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--line);
  box-shadow: var(--dock-shadow);
  backdrop-filter: blur(18px);
}

.app-footer .ghost-button,
.app-footer .primary-button {
  flex: 1 1 0;
  min-height: 40px;
  max-width: none;
  padding: 0 14px;
  border-radius: 14px;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: none;
}

.app-footer button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.screen-card.is-leaving {
  animation: screen-leave 180ms ease forwards;
}

.screen-card.is-entering {
  animation: screen-enter 260ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes screen-leave {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }
}

@keyframes screen-enter {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.hidden {
  display: none !important;
}

@media (max-width: 767px), (max-height: 760px) {
  .stepper,
  .app-shell[data-screen="identity"] .app-chrome,
  .app-shell[data-screen="question"] .app-chrome,
  .app-shell[data-screen="result"] .app-chrome,
  .brand-copy {
    display: none;
  }

  .topbar {
    padding: 10px 12px;
    align-items: center;
  }

  .app-shell[data-screen="selection"] .app-chrome {
    padding: 8px;
    gap: 8px;
  }

  .app-shell[data-screen="selection"] .context-strip {
    gap: 6px;
  }

  .app-shell[data-screen="identity"] .patient-form,
  .app-shell[data-screen="selection"] .screen-card,
  .app-shell[data-screen="question"] .screen-card,
  .app-shell[data-screen="result"] .screen-card {
    height: 100%;
  }

  .app-shell[data-screen="identity"] .patient-form {
    grid-template-rows: auto auto auto minmax(0, 1fr) auto;
    align-content: stretch;
  }

  .app-shell[data-screen="selection"] .screen-card {
    padding: 12px;
    gap: 10px;
  }

  .app-shell[data-screen="question"] .screen-card {
    padding: 12px;
    gap: 10px;
  }

  .app-shell[data-screen="selection"] .screen-heading h2,
  .app-shell[data-screen="question"] .screen-heading h2 {
    font-size: clamp(1.2rem, 5vw, 1.9rem);
  }

  .app-shell[data-screen="selection"] .screen-copy,
  .app-shell[data-screen="question"] .screen-copy {
    font-size: 0.9rem;
  }

  .app-shell[data-screen="question"] .detail-chips {
    gap: 6px;
  }

  .app-shell[data-screen="selection"] .option-card {
    min-height: 70px;
  }

  .app-shell[data-screen="question"] .answer-button {
    min-height: 58px;
  }

  .sheet-backdrop {
    padding: 10px;
  }

  .sheet-card {
    width: min(100%, 420px);
    padding: 14px;
    gap: 10px;
    border-radius: 20px;
  }

  .sheet-preview {
    min-height: 64px;
    padding: 10px 12px;
  }

  .sheet-actions {
    gap: 6px;
  }

  .sheet-actions > * {
    flex-basis: calc(50% - 3px);
  }

  .app-shell[data-screen="question"] .app-footer,
  .app-shell[data-screen="result"] .app-footer,
  .app-shell[data-screen="selection"] .app-footer {
    width: min(calc(100% - 16px), 356px);
    padding: 4px;
    gap: 5px;
    bottom: max(8px, env(safe-area-inset-bottom));
    border-radius: 16px;
  }

  .app-shell[data-screen="question"] .app-footer .ghost-button,
  .app-shell[data-screen="result"] .app-footer .ghost-button,
  .app-shell[data-screen="selection"] .app-footer .ghost-button,
  .app-shell[data-screen="question"] .app-footer .primary-button,
  .app-shell[data-screen="result"] .app-footer .primary-button,
  .app-shell[data-screen="selection"] .app-footer .primary-button {
    min-height: 36px;
    max-width: none;
    padding: 0 10px;
    font-size: 0.86rem;
    border-radius: 12px;
  }

  .brand-block h1 {
    font-size: clamp(1.55rem, 8vw, 2rem);
  }
}

@media (min-width: 640px) {
  .sheet-field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 768px) {
  .app-shell {
    padding: 16px;
    gap: 12px;
  }

  .topbar {
    padding: 16px 18px;
  }

  .app-chrome {
    padding: 12px;
  }

  .screen-card {
    padding: 22px;
    gap: 16px;
  }

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

  .option-card {
    min-height: 122px;
  }

  .result-actions > * {
    flex-basis: 180px;
  }
}

@media (min-width: 1024px) {
  .topbar {
    align-items: center;
  }

  .brand-copy {
    font-size: 0.98rem;
  }

  .screen-card {
    padding: 28px;
  }

  .question-card {
    grid-template-columns: 1.12fr 0.88fr;
    grid-template-rows: auto 1fr;
    align-items: start;
  }

  .question-card .screen-heading {
    grid-column: 1 / -1;
  }

  .result-card {
    grid-template-columns: 1.18fr 0.82fr;
    grid-template-rows: auto auto 1fr;
  }

  .result-card .screen-heading {
    grid-column: 1 / -1;
  }

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

  .answer-pill-grid {
    grid-column: 1 / 2;
  }

  .result-actions {
    grid-column: 2 / 3;
    align-self: end;
    justify-content: flex-end;
  }
}

@media print {
  html,
  body {
    overflow: visible;
    height: auto;
  }

  body {
    background: #ffffff;
    color: #111111;
  }

  .topbar,
  .app-chrome,
  .app-footer,
  .sheet-backdrop,
  .theme-toggle,
  .result-actions {
    display: none !important;
  }

  .app-shell {
    display: block;
    width: 100%;
    height: auto;
    padding: 0;
  }

  .screen {
    display: none !important;
  }

  #screen-result {
    display: block !important;
  }

  .screen-card {
    box-shadow: none;
    border: none;
    background: #ffffff;
    height: auto;
    padding: 0;
  }
}