:root {
  --navy: #19262f;
  --blue: #00aaff;
  --blue-dark: #00689c;
  --bg: #f4f7f9;
  --line: #c9d4db;
  --muted: #4a5a65;
  --ok: #0b6b3a;
  --err: #a31515;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--navy);
  font: 17px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

#app {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 14px 48px;
}

.boot {
  padding: 40px 8px;
  text-align: center;
  font-size: 1.1rem;
}

.top {
  text-align: center;
  padding: 8px 0 4px;
}

.logo {
  display: block;
  margin: 0 auto 8px;
  width: 140px;
  height: auto;
}

h1 {
  margin: 4px 0 8px;
  font-size: 1.55rem;
  line-height: 1.25;
}

.lead {
  margin: 0 auto 8px;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--blue);
  border-radius: 8px;
  padding: 12px 14px;
}

.lead.small {
  border-left-color: var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.progress-wrap {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg);
  padding: 10px 0 8px;
}

.bar {
  height: 14px;
  border-radius: 7px;
  background: #dbe4ea;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: 0;
  background: var(--blue);
  transition: width 0.25s;
}

.progress-text {
  display: block;
  margin-top: 4px;
  font-size: 0.9rem;
  color: var(--muted);
}

.section {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 12px 0;
  overflow: hidden;
}

.section summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 56px;
  padding: 10px 14px;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.section summary::-webkit-details-marker {
  display: none;
}

.section summary::after {
  content: "+";
  margin-left: 4px;
  font-size: 1.5rem;
  line-height: 1;
}

.section[open] summary::after {
  content: "\2212";
}

.sum-title {
  flex: 1;
  min-width: 0;
}

.badge {
  background: var(--blue);
  color: var(--navy);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

.count {
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0.9;
}

.sec-body {
  padding: 4px 14px 14px;
}

.intro {
  margin: 12px 0 4px;
  padding: 10px 12px;
  background: #e8f6ff;
  border-radius: 8px;
}

.intro.warn {
  background: #fff4d6;
  border: 1px solid #e0c46a;
}

.question {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.question:last-child {
  border-bottom: 0;
}

.q-title {
  display: flex;
  gap: 10px;
  margin: 0 0 4px;
  font-size: 1.02rem;
  line-height: 1.4;
}

.q-id {
  flex: none;
  align-self: flex-start;
  min-width: 2.4em;
  text-align: center;
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
  padding: 0 6px;
  font-size: 0.9rem;
}

.why {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.field {
  margin: 12px 0;
}

.label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.chip {
  flex: 1 1 28%;
  min-height: 48px;
  padding: 8px 12px;
  border: 2px solid var(--navy);
  border-radius: 10px;
  background: #fff;
  color: var(--navy);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.chip[aria-pressed="true"] {
  background: var(--navy);
  color: #fff;
  box-shadow: inset 0 0 0 3px var(--blue);
}

input[type="text"],
input[type="url"],
input[type="tel"],
textarea {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 2px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--navy);
  font: inherit;
}

textarea {
  resize: vertical;
}

.unit-wrap {
  position: relative;
}

.unit-wrap input {
  padding-right: 64px;
}

.unit {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.checks {
  margin: 12px 0;
  padding: 0;
  border: 0;
}

.check {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 6px 4px;
  cursor: pointer;
}

.check input {
  flex: none;
  width: 26px;
  height: 26px;
  accent-color: var(--navy);
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
}

input:focus,
textarea:focus {
  border-color: var(--blue);
}

.actions {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  min-height: 52px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 2px solid var(--navy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  background: var(--navy);
  color: #fff;
}

.btn.secondary {
  background: #fff;
  color: var(--navy);
}

.btn:disabled {
  opacity: 0.6;
  cursor: progress;
}

.status {
  min-height: 1.5em;
  margin: 4px 0 0;
  font-weight: 600;
}

.status.ok {
  color: var(--ok);
}

.status.error {
  color: var(--err);
}

.status.info {
  color: var(--blue-dark);
}

.thanks {
  text-align: center;
  padding: 24px 0;
}

.thanks .lead {
  text-align: center;
}

.thanks .btn {
  margin-top: 12px;
  width: 100%;
  max-width: 360px;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

@media (min-width: 720px) {
  body {
    font-size: 18px;
  }

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

  .status {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bar-fill {
    transition: none;
  }
}