* {
  box-sizing: border-box;
}

:root {
  font-family: "Source Sans Pro", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #0b0b0c;
  background: #e8e9ea;
  font-synthesis: none;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #e8e9ea;
}

button,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

.prototype-shell {
  width: min(390px, 100%);
  min-height: 844px;
  margin: 24px auto;
  padding: 72px 32px 32px;
  background: #fff;
}

.screen {
  width: 100%;
}

h1 {
  margin: 0 0 24px;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.2;
}

h2 {
  margin: 36px 0 16px;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

p {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.4;
}

.screen-action {
  margin-top: 32px;
}

.primary-button {
  width: 100%;
  min-height: 52px;
  padding: 13px 18px;
  border: 0;
  border-radius: 12px;
  background: #2563eb;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.primary-button:disabled {
  opacity: 0.42;
  cursor: default;
}

.back-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: -48px 0 18px -10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  font-size: 24px;
  cursor: pointer;
}

.choice-stack {
  display: grid;
  gap: 20px;
  margin-top: 52px;
}

.choice-card {
  width: 100%;
  padding: 16px;
  border: 1px solid #d7dbe0;
  border-radius: 12px;
  background: #fff;
  text-align: left;
  cursor: pointer;
}

.choice-card:hover,
.choice-card:focus-visible {
  border-color: #2563eb;
  outline: none;
}

.choice-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 600;
}

.choice-card span {
  display: block;
  font-size: 15px;
  line-height: 1.35;
}

.textarea {
  display: block;
  width: 100%;
  min-height: 100px;
  padding: 14px 16px;
  border: 1px solid #d7dbe0;
  border-radius: 12px;
  background: #fff;
  color: #0b0b0c;
  font-size: 16px;
  line-height: 1.4;
  resize: vertical;
}

.textarea::placeholder {
  color: #6b7280;
}

.textarea:focus {
  border-color: #2563eb;
  outline: 2px solid rgb(37 99 235 / 14%);
}

.prototype-note {
  margin-top: 32px;
  padding: 16px;
  border: 1px dashed #c5cad1;
  border-radius: 12px;
  background: #f8f9fa;
  color: #4b5563;
  font-size: 15px;
  line-height: 1.4;
}

@media (max-width: 438px) {
  body {
    background: #fff;
  }

  .prototype-shell {
    min-height: 100vh;
    margin: 0 auto;
  }
}