:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e2e4e9;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar a {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.topbar a:hover {
  text-decoration: underline;
}

h1 {
  font-size: 26px;
  margin: 0 0 6px;
}

h2 {
  font-size: 18px;
  margin: 0 0 12px;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 28px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 18px;
}

.field {
  margin-bottom: 22px;
}

.field:last-child {
  margin-bottom: 0;
}

.field label.question-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.required-mark {
  color: var(--danger);
  margin-left: 2px;
}

input[type="text"],
textarea,
input[type="number"],
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}

input[type="text"]:focus,
textarea:focus,
input[type="number"]:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

textarea {
  resize: vertical;
  min-height: 90px;
}

/* Slider field */
.slider-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.slider-value {
  min-width: 34px;
  text-align: center;
  font-weight: 700;
  color: var(--accent);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* Rating field */
.rating-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rating-option {
  position: relative;
}

.rating-option input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  margin: 0;
}

.rating-option .bubble {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--border);
  font-weight: 600;
  color: var(--muted);
  transition: all 0.12s ease;
}

.rating-option input:checked + .bubble {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.rating-option input:focus-visible + .bubble {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Choice field (single or multiple select) */
.choice-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.choice-option {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
}

.choice-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

input[type="date"] {
  width: auto;
}

/* Buttons */
button, .btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 10px 18px;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
}

button:hover, .btn:hover {
  background: var(--accent-hover);
}

button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

button.secondary:hover {
  background: #f0f0f3;
}

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

button.danger:hover {
  background: #fef2f2;
  border-color: var(--danger-hover);
}

button.icon-btn {
  padding: 6px 10px;
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

button.icon-btn:hover {
  background: #f0f0f3;
  color: var(--text);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.error-text {
  color: var(--danger);
  font-size: 13px;
  margin-top: 6px;
  display: none;
}

.field.invalid .error-text {
  display: block;
}

.field.invalid input,
.field.invalid textarea {
  border-color: var(--danger);
}

/* Thank you screen */
.thankyou {
  text-align: center;
  padding: 60px 20px;
}

.thankyou .check {
  font-size: 48px;
  margin-bottom: 12px;
}

.hidden {
  display: none !important;
}

/* Admin builder */
.question-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
  background: #fafafa;
}

.question-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 100px;
  background: #eef2ff;
  color: var(--accent);
  margin-bottom: 6px;
}

.question-card-controls {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.question-meta {
  font-size: 13px;
  color: var(--muted);
}

.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.form-row > div {
  flex: 1;
  min-width: 120px;
}

.form-row label,
.field-label-sm {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.checkbox-row input {
  width: auto;
}

.checkbox-row label {
  font-size: 14px;
  margin: 0;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 24px;
}

.status-msg {
  font-size: 13px;
  color: #16a34a;
  margin-left: 4px;
}

.type-select-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.type-select-row button {
  flex: 1;
  min-width: 90px;
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}

.type-select-row button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Admin tabs */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab-btn {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 10px 16px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text);
  background: transparent;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Stats & charts */
.stat-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.stat-tile {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  min-width: 100px;
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.stat-label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.donut-wrap {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar-chart-row {
  display: grid;
  grid-template-columns: minmax(110px, 220px) 1fr auto;
  align-items: center;
  gap: 10px;
}

.bar-chart-label {
  font-size: 13px;
  color: var(--text);
}

.bar-chart-track {
  background: #f0f0f3;
  border-radius: 4px;
  height: 16px;
  overflow: hidden;
}

.bar-chart-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}

.bar-chart-value {
  font-size: 12px;
  color: var(--muted);
  min-width: 72px;
  text-align: right;
}

.col-chart {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.col-chart-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 34px;
}

.col-chart-barwrap {
  height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

.col-chart-value {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 4px;
}

.col-chart-bar {
  width: 26px;
  background: var(--accent);
  border-radius: 4px 4px 0 0;
}

.col-chart-axis {
  font-size: 11px;
  color: var(--muted);
  margin-top: 6px;
  white-space: nowrap;
}

.text-answers-list {
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.text-answer-item {
  font-size: 13px;
  padding: 8px 10px;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* Footer */
.site-footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.site-footer a {
  display: inline-block;
}

.site-footer img {
  height: 26px;
  width: auto;
  opacity: 0.8;
  transition: opacity 0.15s ease;
}

.site-footer a:hover img {
  opacity: 1;
}