:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef2f8;
  --text: #182032;
  --muted: #5e687a;
  --border: #d9e0eb;
  --primary: #2557d6;
  --primary-hover: #1d46ad;
  --danger: #b42318;
  --success: #027a48;
  --shadow: 0 18px 45px rgba(25, 35, 55, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: 24px;
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.identity-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 520px;
  padding: 32px;
}

.form-panel {
  padding: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.lede {
  max-width: 36rem;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.session-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 88px;
  padding: 16px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.session-card img,
.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
}

.session-name {
  margin: 0;
  font-weight: 700;
}

.session-meta {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.skeleton {
  background: linear-gradient(90deg, #e1e7f0, #f3f6fa, #e1e7f0);
  background-size: 220% 100%;
  animation: shimmer 1.2s infinite linear;
}

.line {
  height: 14px;
  border-radius: 999px;
}

.wide {
  width: 190px;
}

.narrow {
  width: 130px;
  margin-top: 10px;
}

@keyframes shimmer {
  from {
    background-position: 100% 0;
  }
  to {
    background-position: -100% 0;
  }
}

.notice {
  margin-bottom: 18px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  line-height: 1.45;
}

.notice.error {
  border-color: #f3b7b2;
  background: #fff3f2;
  color: var(--danger);
}

.notice.success {
  border-color: #a7dfc4;
  background: #f0fff7;
  color: var(--success);
}

.hidden {
  display: none !important;
}

.form {
  display: grid;
  gap: 18px;
}

.question-section {
  display: grid;
  gap: 14px;
  padding-top: 8px;
}

.question-section h2 {
  margin: 0;
  font-size: 1.2rem;
}

.question-fields {
  display: grid;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-weight: 500;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input {
  min-height: 44px;
  padding: 0 12px;
}

textarea {
  min-height: 220px;
  resize: vertical;
  padding: 12px;
  line-height: 1.55;
}

input:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 87, 214, 0.14);
}

.choice-group {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.choice-group legend {
  padding: 0 4px;
  font-size: 0.95rem;
  font-weight: 800;
}

.choice-label {
  display: flex;
  grid-template-columns: none;
  gap: 10px;
  align-items: center;
  min-height: 32px;
  color: var(--text);
  font-weight: 600;
}

.choice-label input {
  width: 18px;
  min-height: 18px;
  padding: 0;
  box-shadow: none;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

button {
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: var(--primary-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button.secondary {
  background: #303846;
}

button.secondary:hover:not(:disabled) {
  background: #222936;
}

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

button.ghost:hover:not(:disabled) {
  background: var(--surface-alt);
}

button.danger {
  background: var(--danger);
}

button.danger:hover:not(:disabled) {
  background: #8f1d14;
}

.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 16px;
  color: #fff;
  background: var(--primary);
  font-weight: 800;
  text-decoration: none;
}

.link-button.ghost {
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
}

.admin-shell {
  width: min(1320px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-end;
  margin-bottom: 22px;
}

.admin-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(420px, 1.35fr);
  gap: 18px;
  align-items: start;
}

.admin-list-panel,
.admin-detail-panel {
  min-height: 680px;
  padding: 18px;
}

.admin-filters {
  display: grid;
  grid-template-columns: 1fr 150px auto;
  gap: 10px;
}

select {
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  padding: 0 10px;
}

.list-meta,
.pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.list-meta {
  margin: 16px 0 10px;
}

.pager {
  margin-top: 12px;
}

button.small {
  min-height: 34px;
  padding: 0 10px;
  font-size: 0.9rem;
}

.submission-list {
  display: grid;
  gap: 8px;
  min-height: 500px;
}

.submission-item {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
  width: 100%;
  min-height: 72px;
  padding: 12px;
  text-align: left;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
}

.submission-item:hover,
.submission-item.active {
  background: var(--surface-alt);
  border-color: #9fb3d8;
}

.submission-item strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.submission-item small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-weight: 600;
}

.list-status-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.list-status-pill {
  align-self: start;
  width: 72px;
  margin-top: 2px;
}

.list-status-pill.new,
.status-pill.new {
  background: #e8f1ff;
  color: #174ea6;
}

.list-status-pill.processing,
.status-pill.processing {
  background: #fff7db;
  color: #8a5a00;
}

.list-status-pill.done,
.status-pill.done {
  background: #e7f8ef;
  color: #027a48;
}

.list-status-pill.rejected,
.status-pill.rejected {
  background: #fff0f0;
  color: #b42318;
}

.empty-list,
.empty-detail {
  display: grid;
  place-content: center;
  min-height: 420px;
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.detail-view {
  display: grid;
  gap: 22px;
}

.detail-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.detail-heading h2 {
  margin: 8px 0 0;
  font-size: 1.45rem;
  line-height: 1.25;
}

.detail-heading time {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.detail-meta div {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-alt);
}

.detail-meta dt {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.detail-meta dd {
  overflow-wrap: anywhere;
  margin: 6px 0 0;
  font-weight: 700;
}

.detail-view h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.message-box {
  min-height: 180px;
  max-height: 360px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbfcff;
  color: var(--text);
  font: inherit;
  line-height: 1.6;
  white-space: pre-wrap;
}

.answer-list {
  display: grid;
  gap: 10px;
}

.answer-item {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbfcff;
}

.answer-item dt {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.answer-item dd {
  margin: 6px 0 0;
  overflow-wrap: anywhere;
  line-height: 1.55;
  white-space: pre-wrap;
}

.status-form {
  display: grid;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.status-form textarea {
  min-height: 120px;
}

.question-admin-panel {
  margin-top: 18px;
  padding: 20px;
}

.question-admin-heading {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-end;
  margin-bottom: 18px;
}

.question-admin-heading h2 {
  margin: 0;
  font-size: 1.55rem;
}

.question-admin-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.65fr) minmax(420px, 1.35fr);
  gap: 18px;
}

.question-admin-list {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 360px;
}

.question-admin-item {
  display: block;
  width: 100%;
  min-height: 64px;
  padding: 12px;
  color: var(--text);
  text-align: left;
  background: #fff;
  border: 1px solid var(--border);
}

.question-admin-item:hover,
.question-admin-item.active {
  background: var(--surface-alt);
  border-color: #9fb3d8;
}

.question-admin-item strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.question-admin-item small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-weight: 700;
}

.question-form {
  display: grid;
  gap: 14px;
}

.question-form textarea {
  min-height: 130px;
}

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

.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
}

@media (max-width: 820px) {
  .shell {
    grid-template-columns: 1fr;
    padding: 20px 0;
  }

  .identity-panel {
    min-height: 320px;
  }

  .admin-header,
  .detail-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-grid,
  .question-admin-grid,
  .admin-filters,
  .detail-meta,
  .form-row {
    grid-template-columns: 1fr;
  }

  .admin-list-panel,
  .admin-detail-panel {
    min-height: auto;
  }

  .question-admin-heading {
    align-items: stretch;
    flex-direction: column;
  }
}