:root {
  --gray-800: #212529;
  --red-500: #ed472f;
  --green-bright-700: #0fbd01;
  --black-alpha-800: #000000d6;
  --black-alpha-500: #0000008f;
  --black-alpha-400: #00000066;
  --black-alpha-200: #0000001f;
  --black-alpha-50: #00000008;
  --white-alpha-800: #ffffff;
  --white-alpha-400: #ffffff80;
  --radius-round: 9999px;
  --radius-xl: 32px;
  --radius-m: 16px;
  --radius-s: 12px;
  --radius-xs: 8px;
  --elevation-4: 0 0 0 1px #00000005, 0 2px 6px 0 #0000001a;
  --elevation-24: 0 0 0 1px #21252905, 0 12px 24px 0 #0000001a;
  --font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  --font-heading-1: 600 28px/1.5 var(--font-family);
  --font-subheading: 600 16px/1.5 var(--font-family);
  --font-body-1: 400 16px/1.7 var(--font-family);
  --font-body-2: 400 14px/1.6 var(--font-family);
  --font-button-large: 600 16px/1.5 var(--font-family);
  --font-button-normal: 600 14px/1.5 var(--font-family);
  --font-caption: 400 12px/1.5 var(--font-family);
  --letter-spacing-heading-1: 0.56px;
  --letter-spacing-subheading: 0.2px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--white-alpha-800);
  color: var(--black-alpha-800);
  font: var(--font-body-1);
}

.page {
  max-width: 640px;
  margin: 0 auto;
}

.page.page-narrow {
  max-width: 560px;
}

.intro {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 20px;
}

.intro-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-title {
  margin: 0;
  font: var(--font-heading-1);
  letter-spacing: var(--letter-spacing-heading-1);
}

.lead {
  margin: 0;
  color: var(--black-alpha-500);
}

.button-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 20px;
  border-radius: var(--radius-round);
  background: var(--gray-800);
  color: var(--white-alpha-800);
  font: var(--font-button-large);
  text-decoration: none;
}

.button-text {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border-radius: var(--radius-round);
  color: var(--black-alpha-500);
  font: var(--font-button-normal);
  text-decoration: none;
}

.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 6px 6px 20px;
  cursor: pointer;
  list-style: none;
}

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

.faq-heading {
  margin: 0;
  color: var(--gray-800);
  font: var(--font-subheading);
  letter-spacing: var(--letter-spacing-subheading);
}

.faq-chevron {
  flex: none;
  width: 44px;
  height: 44px;
  background: url("chevron-down.svg") no-repeat center / 24px 24px;
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
}

.faq-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 20px 24px;
}

.faq-body p {
  margin: 0;
}

.page-with-submit-bar {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

.contact-form {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 16px;
  padding: 0 20px;
}

.contact-fields {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 16px;
}

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

.field-label {
  color: var(--black-alpha-500);
  font: var(--font-button-normal);
  line-height: 22px;
}

.field-input {
  width: 100%;
  min-height: 48px;
  padding: 6px 16px;
  border: none;
  border-radius: var(--radius-s);
  background: var(--black-alpha-50);
  color: var(--black-alpha-800);
  font: var(--font-body-1);
}

.field-input::placeholder {
  color: var(--black-alpha-400);
}

.field-invalid .field-label {
  color: var(--red-500);
}

.field-invalid .field-input {
  border: 1px solid var(--red-500);
}

.field-error {
  margin: -6px 0 0;
  color: var(--red-500);
  font: var(--font-caption);
}

.field-textarea {
  min-height: 160px;
  padding: 12px 16px;
  border-radius: var(--radius-m);
  resize: none;
}

.submit-bar {
  position: sticky;
  bottom: 0;
  margin: 8px -20px 0;
  padding: 12px 24px 32px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  background: var(--white-alpha-800);
  box-shadow: var(--elevation-24);
}

@media (min-width: 560px) {
  .page-with-submit-bar {
    min-height: auto;
  }

  .submit-bar {
    position: static;
    margin: 8px 0 0;
    padding: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
  }
}

.button-submit {
  width: 100%;
  min-height: 56px;
  padding: 0 20px;
  border: none;
  border-radius: var(--radius-round);
  background: var(--gray-800);
  color: var(--white-alpha-800);
  font: var(--font-button-large);
}

.button-submit:disabled {
  background: var(--black-alpha-200);
  color: var(--white-alpha-400);
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  left: 24px;
  display: flex;
  gap: 8px;
  align-items: center;
  max-width: 512px;
  min-height: 48px;
  margin: 0 auto;
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  background: var(--green-bright-700);
  color: var(--white-alpha-800);
  font: var(--font-body-1);
  box-shadow: var(--elevation-4);
  opacity: 0;
  transition: opacity 150ms ease;
}

.toast-visible {
  opacity: 1;
  transition: opacity 200ms ease;
}

.toast-above-submit-bar {
  bottom: 116px;
}

.toast[hidden] {
  display: none;
}

.toast::before {
  flex: none;
  width: 24px;
  height: 24px;
  content: "";
  background: url("/help/check-circle.svg") no-repeat center / 24px 24px;
}

.toast-error {
  background: var(--red-500);
}

.toast-error::before {
  background-image: url("/help/exclamation-circle.svg");
}

@media (min-width: 560px) {
  .toast-above-submit-bar {
    bottom: 24px;
  }
}

.article {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 20px 24px;
}

.article p {
  margin: 0;
}

.article-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 0;
}

.article-section ul,
.article-section ol {
  margin: 0;
  padding-left: 1.5em;
}

.article-heading {
  margin: 0;
  color: var(--black-alpha-500);
  font: var(--font-body-2);
  font-weight: 600;
}