:root {
  --bg: #e7edf5;
  --bg-accent: radial-gradient(circle at top left, rgba(112, 163, 255, 0.28), transparent 34%),
    linear-gradient(180deg, #f5f8fc 0%, #e4ecf6 100%);
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: #ffffff;
  --line: #c8d4e3;
  --line-strong: #9fb5cd;
  --text: #17304d;
  --text-soft: #5f738a;
  --blue: #1f6fd1;
  --blue-deep: #174f9b;
  --blue-pale: #dbe9fb;
  --danger: #b93b3b;
  --danger-pale: #fde7e7;
  --success: #2d7b5a;
  --shadow: 0 18px 40px rgba(23, 48, 77, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-body: "Aptos", "Segoe UI", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg-accent);
  -webkit-text-size-adjust: 100%;
}

button,
input,
textarea {
  font: inherit;
}

main {
  display: block;
}

.page-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 96px;
}

body[data-view-mode='single'] .page-shell {
  width: 100%;
  max-width: none;
  min-height: 100dvh;
  padding: 16px;
}

body[data-view-mode='single'] main {
  min-height: calc(100dvh - 32px);
  display: grid;
}

body[data-view-mode='single'] .hero,
body[data-view-mode='single'] .mobile-action-bar {
  display: none;
}

body[data-screen='result'] .hero,
body[data-screen='result'] .mobile-action-bar,
body[data-screen='result'] .status-card {
  display: none !important;
}

body[data-view-mode='single'][data-single-stage='question'] .status-card {
  display: none !important;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.9fr);
  gap: 20px;
  margin-bottom: 20px;
}

.hero,
.status-card,
.question-card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero,
.status-card {
  padding: 24px;
}

.eyebrow,
.question-mode {
  margin: 0 0 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2.1rem, 3vw, 3.4rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 58ch;
  margin-top: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}

.hero-panel {
  display: grid;
  gap: 18px;
  align-content: space-between;
  padding: 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(225, 236, 251, 0.95), rgba(245, 248, 252, 0.95));
  border: 1px solid var(--line);
}

#progress-label {
  display: block;
  font-size: 1.2rem;
}

#progress-copy {
  margin-top: 6px;
  color: var(--text-soft);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.view-mode-switch {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.mode-chip {
  min-height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  color: var(--blue-deep);
  background: transparent;
}

.mode-chip.is-active {
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 10px 18px rgba(31, 111, 209, 0.2);
}

.mobile-action-bar {
  display: none;
}

.primary-button,
.secondary-button,
.danger-button,
.link-button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 140ms ease, background-color 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.primary-button,
.secondary-button,
.danger-button {
  min-height: 50px;
  padding: 0 20px;
  font-weight: 700;
}

.primary-button {
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 10px 20px rgba(31, 111, 209, 0.28);
}

.secondary-button {
  color: var(--blue-deep);
  background: white;
  border: 1px solid var(--line);
}

.danger-button {
  color: #8e3030;
  background: #fff8f8;
  border: 1px solid #e7caca;
  box-shadow: none;
}

.primary-button:hover,
.secondary-button:hover,
.danger-button:hover,
.link-button:hover {
  transform: translateY(-1px);
}

.primary-button:disabled,
.secondary-button:disabled,
.danger-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

.danger-button:hover {
  background: #fff2f2;
  border-color: #dbaaaa;
}

.status-card {
  display: none;
  margin-bottom: 20px;
}

.status-card[data-tone='error'] {
  display: block;
  background: linear-gradient(180deg, rgba(253, 231, 231, 0.95), rgba(255, 255, 255, 0.95));
  border-color: rgba(185, 59, 59, 0.18);
}

.status-card[data-tone='success'] {
  display: block;
  background: linear-gradient(180deg, rgba(228, 248, 237, 0.95), rgba(255, 255, 255, 0.95));
  border-color: rgba(45, 123, 90, 0.18);
}

.status-card[data-state='pending'] {
  animation: pendingPulse 1s ease-in-out infinite;
}

@keyframes pendingPulse {
  0% {
    border-color: rgba(45, 123, 90, 0.18);
  }
  50% {
    border-color: rgba(31, 111, 209, 0.32);
  }
  100% {
    border-color: rgba(45, 123, 90, 0.18);
  }
}

.survey-form {
  display: grid;
  gap: 16px;
}

.survey-form[data-view-mode='single'] {
  min-height: 0;
}

.single-intro-screen {
  height: 100%;
}

.single-intro-screen[hidden] {
  display: none;
}

.single-intro-card {
  min-height: calc(100dvh - 32px);
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 18px;
  padding: clamp(24px, 4vw, 44px);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.single-intro-summary {
  display: grid;
  gap: 6px;
}

.single-intro-summary p {
  color: var(--text-soft);
}

.single-intro-actions {
  width: 100%;
  display: flex;
  gap: 12px;
}

.submission-result-screen[hidden] {
  display: none;
}

.submission-result-card {
  min-height: min(72dvh, 680px);
  display: grid;
  align-content: center;
  gap: 18px;
  padding: clamp(24px, 4vw, 44px);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.submission-result-card[data-tone='success'] {
  background: linear-gradient(180deg, rgba(228, 248, 237, 0.95), rgba(255, 255, 255, 0.98));
}

.submission-result-card[data-tone='error'] {
  background: linear-gradient(180deg, rgba(253, 231, 231, 0.95), rgba(255, 255, 255, 0.98));
}

.submission-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.single-question-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  margin-top: 18px;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.single-question-nav[hidden] {
  display: none;
}

.single-question-meta {
  display: grid;
  gap: 6px;
}

.single-question-meta p {
  color: var(--text-soft);
}

.single-question-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.single-question-actions .secondary-button:disabled,
.single-question-actions .primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  box-shadow: none;
}

.question-card {
  padding: 20px;
}

.survey-form[data-view-mode='single'] .question-card {
  min-height: 0;
  display: grid;
  grid-template-rows: auto auto auto;
}

.question-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.question-title {
  font-size: 1.2rem;
  line-height: 1.35;
}

.question-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.required-badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--blue-pale);
  color: var(--blue-deep);
  font-size: 0.85rem;
  font-weight: 700;
}

.link-button {
  padding: 0;
  color: var(--text-soft);
  background: transparent;
}

.question-body {
  display: grid;
  gap: 12px;
}

.survey-form[data-view-mode='single'] .question-body {
  align-content: start;
}

.choice-list,
.table-grid {
  display: grid;
  gap: 12px;
}

.choice-item,
.image-choice-card,
.manual-field,
.text-answer {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-strong);
}

.choice-item input,
.table-cell input {
  margin-top: 3px;
  accent-color: var(--blue);
}

.choice-item input,
.table-cell input,
.image-choice-card input {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.choice-label,
.cell-header {
  font-weight: 600;
}

.choice-help {
  margin-top: 3px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.image-choice-card {
  position: relative;
  min-height: 100%;
}

.image-choice-card--text-only {
  align-items: center;
}

.image-choice-card input {
  margin-top: 3px;
}

.image-choice-card img {
  width: 84px;
  height: 84px;
  border-radius: 18px;
  object-fit: cover;
  background: var(--blue-pale);
}

.image-choice-copy {
  display: grid;
  gap: 6px;
}

.image-choice-card--text-only .image-choice-copy {
  gap: 4px;
}

.manual-field,
.text-answer {
  flex-direction: column;
}

.image-choice-card.manual-field {
  width: 100%;
  align-items: stretch;
}

.image-choice-card.manual-field > label:first-child {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-strong);
}

.image-choice-card.manual-field > label,
.image-choice-card.manual-field .field-input,
.image-choice-card.manual-field .field-meta {
  width: 100%;
}

.image-choice-card.manual-field .field-input {
  min-height: 48px;
}

.field-label {
  font-weight: 700;
}

.field-input,
.field-textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  outline: none;
  color: var(--text);
  background: #fbfdff;
}

.field-input:focus,
.field-textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(31, 111, 209, 0.12);
}

.field-textarea {
  min-height: 120px;
  resize: vertical;
}

.field-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.question-error {
  min-height: 24px;
  margin-top: 12px;
  color: var(--danger);
  font-weight: 700;
}

.question-card[data-invalid='true'] {
  border-color: rgba(185, 59, 59, 0.24);
  box-shadow: 0 18px 40px rgba(185, 59, 59, 0.12);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: white;
}

.table-grid {
  min-width: 560px;
}

.table-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.1fr) repeat(var(--column-count), minmax(110px, 1fr));
}

.table-row:not(:last-child) {
  border-bottom: 1px solid var(--line);
}

.table-row.header {
  background: #eff5fc;
}

.table-cell,
.table-row-label {
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.table-row-label {
  justify-content: flex-start;
  font-weight: 700;
}

.table-cell {
  border-left: 1px solid var(--line);
}

.table-cell label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-soft);
}

.table-cell-label {
  display: none;
  font-weight: 700;
  color: var(--text);
}

@media (max-width: 860px) {
  body {
    background-attachment: fixed;
  }

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

  .hero-panel {
    gap: 16px;
  }

  .view-mode-switch {
    width: fit-content;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }

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

  .question-head {
    flex-direction: column;
  }

  .question-meta {
    align-items: flex-start;
    width: 100%;
  }

  .link-button.clear-button {
    min-height: 40px;
  }

  .single-question-nav {
    grid-template-columns: 1fr;
  }

  .single-question-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 20px, 100%);
    padding-top: 16px;
    padding-bottom: calc(112px + env(safe-area-inset-bottom));
  }

  .hero,
  .status-card,
  .question-card {
    border-radius: 20px;
  }

  .hero,
  .status-card,
  .question-card {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-panel {
    padding: 16px;
  }

  .hero-actions {
    display: none;
  }

  .view-mode-switch {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: 20px;
  }

  .mode-chip {
    width: 100%;
  }

  body[data-view-mode='single'] .page-shell {
    padding: 10px;
  }

  body[data-view-mode='single'] main {
    min-height: calc(100dvh - 20px);
  }

  .single-intro-card {
    min-height: calc(100dvh - 20px);
    border-radius: 20px;
    padding: 20px 16px;
  }

  .single-intro-actions {
    display: grid;
  }

  .submission-result-card {
    min-height: calc(100dvh - 20px);
    border-radius: 20px;
    padding: 20px 16px;
  }

  .submission-result-actions {
    display: grid;
  }

  .mobile-action-bar {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    z-index: 20;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 20px;
    background: rgba(247, 250, 254, 0.94);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 32px rgba(23, 48, 77, 0.18);
  }

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

  .choice-item,
  .image-choice-card,
  .manual-field,
  .text-answer {
    padding: 12px;
  }

  .choice-item,
  .image-choice-card {
    gap: 10px;
  }

  .question-title {
    font-size: 1.06rem;
  }

  .single-question-nav {
    padding: 16px;
    border-radius: 20px;
  }

  .single-question-actions {
    grid-template-columns: 1fr;
  }

  .survey-form[data-view-mode='single'] {
    min-height: 0;
  }

  .survey-form[data-view-mode='single'] .question-card {
    min-height: 0;
  }

  .field-meta {
    flex-direction: column;
    gap: 6px;
  }

  .table-wrap {
    overflow: visible;
    border: 0;
    background: transparent;
  }

  .table-grid {
    min-width: 0;
    gap: 10px;
  }

  .table-row.header {
    display: none;
  }

  .table-row {
    grid-template-columns: 1fr;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: white;
    overflow: hidden;
  }

  .table-row:not(:last-child) {
    border-bottom: 1px solid var(--line);
  }

  .table-row-label {
    padding-bottom: 10px;
    background: #eff5fc;
  }

  .table-cell {
    justify-content: space-between;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .table-cell label {
    width: 100%;
    justify-content: space-between;
  }

  .table-cell-label {
    display: inline;
  }
}