:root {
  --bg-top: #faf6ee;
  --bg-bottom: #efe7da;
  --paper: rgba(255, 252, 247, 0.9);
  --line: rgba(73, 59, 42, 0.12);
  --ink: #221c16;
  --muted: #685c52;
  --accent: #0f6d70;
  --accent-strong: #094b58;
  --accent-soft: rgba(15, 109, 112, 0.12);
  --accent-soft-strong: rgba(15, 109, 112, 0.2);
  --success: #2c7b58;
  --danger: #a53d3d;
  --shadow: 0 24px 72px rgba(37, 29, 18, 0.08);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --sans:
    "BIZ UDPGothic", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  position: relative;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.68), transparent 34%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 109, 112, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 109, 112, 0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 85%);
}

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

button {
  cursor: pointer;
}

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

h1 {
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  line-height: 1.1;
}

h2 {
  font-size: 1.24rem;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(14px);
  opacity: 0.55;
}

.ambient-left {
  width: 360px;
  height: 360px;
  top: -60px;
  left: -140px;
  background: rgba(44, 123, 88, 0.12);
}

.ambient-right {
  width: 320px;
  height: 320px;
  right: -120px;
  top: 220px;
  background: rgba(15, 109, 112, 0.12);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(980px, calc(100% - 28px));
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 0 max(32px, env(safe-area-inset-bottom));
}

.panel {
  margin: 16px 0;
  padding: 22px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  gap: 12px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--accent);
}

.helper-text,
.field-note,
.history-empty {
  color: var(--muted);
  line-height: 1.75;
}

.panel-head,
.panel-actions,
.status-tags,
.nav-row,
.history-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.panel-actions {
  margin-bottom: 24px;
}

.panel-head,
.screen-head,
.history-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.badge-soft,
.badge-pill,
.mini-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
}

.badge-soft {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
}

.badge-pill {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.mini-badge {
  min-height: 30px;
  padding: 0 12px;
  font-size: 0.8rem;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-strong);
}

.summary-grid,
.screen-shell,
.screen-subgrid,
.summary-callout,
.result-grid,
.history-list,
.history-item,
.calibration-card,
.section-title-card,
.vas-card {
  display: grid;
  gap: 16px;
}

.section-title-card {
  padding: 0 0 2px;
}

.reaction-field {
  max-width: none;
}

.reaction-input {
  min-height: 50px;
}

.reaction-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.reaction-modality {
  display: grid;
  gap: 10px;
}

.reaction-modality + .reaction-modality {
  margin-top: 14px;
}

.reaction-modality-title {
  font-weight: 700;
}

.reaction-label {
  font-size: 0.86rem;
}

.sleepiness-options {
  display: grid;
  gap: 10px;
}

.sleepiness-option {
  display: grid;
  grid-template-columns: auto 34px minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
}

.sleepiness-option input {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.sleepiness-score {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border-radius: 0;
  font-weight: 700;
  color: var(--ink);
  background: transparent;
}

.reaction-card {
  margin-top: 10px;
}

.sleepiness-label {
  line-height: 1.6;
}

.summary-grid {
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.summary-card,
.summary-callout,
.history-item,
.result-card,
.calibration-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.status-panel .summary-card {
  min-width: 0;
  padding: 12px 14px;
}

.status-panel .summary-card-label {
  margin-bottom: 6px;
  font-size: 0.76rem;
}

.status-panel .summary-card-value {
  font-size: 0.94rem;
  line-height: 1.3;
}

.status-panel .button-secondary,
.status-panel .button-ghost,
.status-panel .badge-soft {
  min-height: 44px;
  font-size: 0.82rem;
}

.summary-card-label,
.result-card-label {
  margin-bottom: 8px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--muted);
}

.summary-card-value,
.result-card-value {
  font-size: 1.08rem;
  font-weight: 700;
}

.flow-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.flow-strip:empty {
  display: none;
}

.flow-chip {
  padding: 14px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
  text-align: center;
  color: var(--muted);
}

.flow-chip.current {
  color: var(--accent-strong);
  border-color: rgba(15, 109, 112, 0.3);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(15, 109, 112, 0.09));
  transform: translateY(-2px);
}

.flow-chip.done {
  color: var(--success);
  border-color: rgba(44, 123, 88, 0.28);
  background: rgba(44, 123, 88, 0.1);
}

.flow-chip-title {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
}

.flow-chip-sub {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
}

.view-panel {
  min-height: 360px;
}

.screen-copy {
  margin-top: 10px;
}

.screen-subgrid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

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

.field-stack {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.field-label {
  font-size: 0.94rem;
  font-weight: 700;
}

.intro-grid .field-label {
  font-size: 0.88rem;
}

.text-input,
.select-input,
.number-input,
.text-area {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
}

.intro-grid .text-input,
.intro-grid .select-input {
  min-height: 48px;
  padding: 12px 14px;
  font-size: 0.92rem;
}

.date-input {
  min-height: 48px;
  max-width: 100%;
  padding-right: 40px;
  -webkit-appearance: none;
  appearance: none;
}

.date-input::-webkit-date-and-time-value {
  text-align: left;
  font-size: 0.92rem;
}

.date-input::-webkit-calendar-picker-indicator {
  margin: 0;
}

.text-input:focus,
.select-input:focus,
.number-input:focus,
.text-area:focus {
  outline: none;
  border-color: rgba(15, 109, 112, 0.5);
  box-shadow: 0 0 0 4px rgba(15, 109, 112, 0.12);
}

.nav-row {
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}

.nav-row-end {
  justify-content: flex-end;
}

.button-primary,
.button-secondary,
.button-ghost,
.mini-button {
  min-height: 52px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 700;
}

.button-primary:hover,
.button-secondary:hover,
.button-ghost:hover,
.mini-button:hover,
.button-primary:focus-visible,
.button-secondary:focus-visible,
.button-ghost:focus-visible,
.mini-button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 14px 24px rgba(15, 109, 112, 0.18);
}

.button-secondary {
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.84);
  border-color: rgba(15, 109, 112, 0.2);
}

.button-ghost,
.mini-button {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
}

.button-ghost.danger {
  color: var(--danger);
  border-color: rgba(165, 61, 61, 0.2);
}

.button-primary:disabled,
.button-secondary:disabled,
.button-ghost:disabled {
  cursor: not-allowed;
  transform: none;
  opacity: 0.45;
  box-shadow: none;
}

.calibration-bar-wrap {
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.vas-track-wrap {
  display: grid;
  justify-content: center;
  overflow-x: hidden;
  padding-bottom: 8px;
}

.calibration-bar-shell,
.vas-track-shell {
  display: inline-flex;
  flex-direction: column;
  gap: 12px;
}

.vas-track-shell {
  width: calc(var(--vas-width) + (var(--vas-side-space) * 2));
  max-width: 100%;
  --vas-side-space: 24px;
}

.calibration-surface,
.vas-track {
  position: relative;
  touch-action: none;
}

.calibration-surface {
  width: calc(var(--calibration-max-width) + 48px);
  height: 52px;
  padding-inline: 24px;
}

.calibration-line {
  position: absolute;
  left: 24px;
  top: 50%;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transform: translateY(-50%);
  pointer-events: none;
}

.vas-track {
  width: calc(var(--vas-width) + (var(--vas-side-space) * 2));
  max-width: 100%;
  height: 58px;
}

.vas-line-frame {
  position: absolute;
  inset: 0 var(--vas-side-space);
}

.vas-line-frame::before {
  content: "";
  position: absolute;
  inset: 50% 0 auto;
  height: 4px;
  border-radius: 999px;
  background: rgba(34, 28, 22, 0.88);
  transform: translateY(-50%);
}

.vas-marker {
  position: absolute;
  top: 50%;
  width: 2.5px;
  height: 34px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 8px 16px rgba(15, 109, 112, 0.22);
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: opacity 0.16s ease;
}

.vas-stroke-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.vas-stroke-line,
.vas-draft-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 0.5mm;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.vas-draft-line {
  opacity: 0.55;
}

.vas-track.is-answered .vas-line-frame::before {
  background: rgba(34, 28, 22, 0.72);
}

.vas-track.is-invalid .vas-line-frame::before {
  animation: vas-invalid-pulse 0.52s ease;
}

@keyframes vas-invalid-pulse {
  0%,
  100% {
    background: rgba(34, 28, 22, 0.88);
  }

  35% {
    background: var(--danger);
  }
}

.calibration-readout,
.question-title {
  line-height: 1.5;
}

.question-number {
  margin-right: 8px;
}

.calibration-readout {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.vas-question-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  align-items: start;
  gap: 10px;
}

.vas-admin-button {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-top: 2px;
  padding: 0;
  border: 1px solid rgba(73, 59, 42, 0.18);
  border-radius: 6px;
  color: rgba(34, 28, 22, 0.66);
  background: rgba(255, 252, 247, 0.72);
  line-height: 1;
  box-shadow: none;
}

.vas-admin-button:hover,
.vas-admin-button:focus-visible {
  color: var(--danger);
  border-color: rgba(165, 61, 61, 0.34);
  background: rgba(165, 61, 61, 0.08);
  outline: none;
}

.vas-label-row {
  display: flex;
  justify-content: space-between;
  width: var(--vas-width);
  max-width: 100%;
  margin-inline: auto;
  gap: 12px;
  font-size: clamp(0.72rem, 1.4vw, 0.86rem);
  color: var(--muted);
}

.vas-label-row span {
  flex: 1 1 0;
  white-space: nowrap;
  letter-spacing: 0;
}

.vas-label-row span:first-child {
  text-align: left;
}

.vas-label-row span:last-child {
  text-align: right;
}

.result-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.history-title {
  font-size: 1rem;
  font-weight: 700;
}

.history-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.history-scores {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.empty-state {
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(15, 109, 112, 0.22);
  background: rgba(255, 255, 255, 0.55);
}

@media (max-width: 840px) {
  .app-shell {
    width: min(100%, calc(100% - 20px));
  }

  .panel,
  .hero {
    padding: 18px 16px;
  }

  .status-panel .summary-card-value {
    font-size: 0.88rem;
  }

  .panel-head,
  .screen-head,
  .history-topline {
    flex-direction: column;
    align-items: stretch;
  }

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

@media (max-width: 720px) {
  .screen-subgrid.intro-grid {
    grid-template-columns: 1fr;
  }

  .vas-label-row {
    font-size: 0.72rem;
  }

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

  .sleepiness-option {
    grid-template-columns: auto 30px minmax(0, 1fr);
    padding: 12px;
  }
}

@media (max-width: 560px) {
  .flow-strip,
  .summary-grid,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .nav-row {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .button-primary,
  .button-secondary,
  .button-ghost,
  .mini-button {
    width: 100%;
  }
}