:root {
  --color-dark: #0f172a;
  --color-dark-surface: #1f2937;
  --color-primary: #1e3a5f;
  --color-primary-light: #2d4a7a;
  --color-accent: #c53d43;
  --color-accent-dark: #a83238;
  --color-gold: #b8860b;
  --color-bg: #faf8f5;
  --color-bg-secondary: #f5f3f0;
  --color-card: #ffffff;
  --color-border: #e8e4df;
  --color-text: #1a1a2e;
  --color-text-secondary: #6b7280;
  --color-success: #15803d;
  --color-success-bg: #f0fdf4;
  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;
  --color-warning: #92400e;
  --color-warning-bg: #fffbeb;
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 18px 45px rgba(15, 23, 42, 0.12);
  color-scheme: light;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-synthesis: none;
  line-height: 1.6;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

a {
  color: var(--color-primary);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-primary-light);
}

button,
input,
select {
  font: inherit;
}

button,
select,
input[type="checkbox"] {
  cursor: pointer;
}

button:disabled,
select:disabled,
input:disabled {
  cursor: not-allowed;
}

:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--color-primary);
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  min-height: 44px;
  padding: 0.625rem 1rem;
  border-radius: 0.375rem;
  background: var(--color-card);
  color: var(--color-dark);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 10;
  min-height: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--color-dark);
  color: #ffffff;
}

.site-header__inner,
.site-footer__inner,
.section-shell,
.hero__inner,
.form-shell {
  width: min(100% - 2rem, 70rem);
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
}

.brand__mark {
  position: relative;
  display: inline-grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
}

.brand__mark::before,
.brand__mark::after {
  position: absolute;
  width: 2px;
  height: 20px;
  border-radius: 999px;
  background: #ffffff;
  content: "";
}

.brand__mark::before {
  transform: rotate(42deg);
}

.brand__mark::after {
  transform: rotate(-42deg);
}

.brand__mark span {
  position: absolute;
  bottom: 4px;
  width: 12px;
  height: 3px;
  border-radius: 999px;
  background: var(--color-accent);
}

.header-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #ffffff;
  font-size: 0.875rem;
  text-underline-offset: 0.25em;
}

.header-link:hover {
  color: #ffffff;
}

.hero {
  display: grid;
  min-height: calc(100svh - 64px);
  align-items: center;
  overflow: hidden;
  background-color: var(--color-dark);
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  color: #ffffff;
}

.hero__inner {
  display: grid;
  gap: 2rem;
  padding-block: 3rem;
}

.eyebrow,
.section-kicker,
.step-label {
  margin: 0 0 0.75rem;
  color: var(--color-gold);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 11em;
  margin: 0;
  font-family: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.25rem, 11vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.hero h1 span {
  color: #ffffff;
}

.hero__lead {
  max-width: 37rem;
  margin: 1.5rem 0 0;
  color: #d1d5db;
  font-size: 1rem;
  line-height: 1.9;
}

.hero__lead strong {
  color: #ffffff;
  font-weight: 700;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 1px solid transparent;
  border-radius: 0.375rem;
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button--accent {
  background: var(--color-accent);
  color: #ffffff;
}

.button--accent:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
}

.button--secondary {
  background: var(--color-primary);
  color: #ffffff;
}

.button--secondary:hover {
  background: var(--color-primary-light);
  color: #ffffff;
}

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

.button--outline:hover {
  background: var(--color-primary);
  color: #ffffff;
}

.button--full {
  width: 100%;
}

.button:disabled {
  border-color: #9ca3af;
  background: #6b7280;
  color: #ffffff;
  opacity: 1;
  transform: none;
}

.button__spinner {
  display: none;
  width: 1.1rem;
  height: 1.1rem;
  border: 2px solid rgba(255, 255, 255, 0.42);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.button.is-loading .button__spinner {
  display: inline-block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.hero__cta {
  width: 100%;
  margin-top: 2rem;
}

.hero__note {
  margin: 0.75rem 0 0;
  color: #d1d5db;
  font-size: 0.875rem;
}

.hero__panel {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.5rem;
  padding: 1.5rem;
  background: rgba(31, 41, 55, 0.8);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.hero__panel-label {
  margin: 0 0 1rem;
  color: #d1d5db;
  font-size: 0.875rem;
  font-weight: 700;
}

.promise-list {
  display: grid;
  margin: 0;
}

.promise-list div {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1rem;
  padding-block: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.promise-list dt {
  color: #d1d5db;
  font-size: 0.875rem;
}

.promise-list dd {
  margin: 0;
  font-weight: 700;
}

.hero__panel-note {
  margin: 1rem 0 0;
  color: #d1d5db;
  font-size: 0.875rem;
}

.intro,
.faq {
  padding-block: 4rem;
}

.intro {
  background: var(--color-bg);
}

.intro__grid {
  display: grid;
  gap: 1.5rem;
}

.intro h2,
.faq h2,
.form-heading h2,
.policy-header h1 {
  margin: 0;
  font-family: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.75rem, 7vw, 2.75rem);
  line-height: 1.45;
}

.intro__grid > p {
  margin: 0;
  line-height: 2;
}

.registration {
  padding-block: 4rem;
  background: var(--color-bg-secondary);
}

.form-shell {
  max-width: 48rem;
}

.form-heading {
  margin-bottom: 1.5rem;
  text-align: center;
}

.form-heading > p:last-child {
  margin: 0.75rem 0 0;
  color: var(--color-text-secondary);
}

.form-card {
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.form-group,
.role-details {
  min-width: 0;
  margin: 0;
  border: 0;
  padding: 0;
}

.form-group > legend,
.role-details > legend,
.field-label,
.form-field > label {
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 700;
}

.required-label,
.optional-label {
  display: inline-block;
  margin-left: 0.25rem;
  font-size: 0.75rem;
  font-weight: 700;
}

.required-label {
  color: var(--color-error);
}

.optional-label {
  color: var(--color-text-secondary);
}

.field-help,
.submission-note,
.step-two-heading p,
.success-panel > p,
.completion-panel > p {
  color: var(--color-text-secondary);
}

.field-help {
  margin: 0.25rem 0 0;
  font-size: 0.8125rem;
}

.chip-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.choice-chip {
  position: relative;
  min-width: 0;
}

.choice-chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.choice-chip span {
  display: flex;
  min-height: 64px;
  flex-direction: column;
  justify-content: center;
  border: 2px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--color-card);
  color: var(--color-text);
  transition: border-color 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

.choice-chip span::after {
  position: absolute;
  top: 50%;
  right: 1rem;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 2px solid var(--color-text-secondary);
  border-radius: 50%;
  color: #ffffff;
  content: "";
  transform: translateY(-50%);
}

.choice-chip strong,
.choice-chip small {
  padding-right: 2.5rem;
}

.choice-chip small {
  margin-top: 0.125rem;
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
}

.choice-chip input:checked + span {
  border-color: var(--color-primary);
  background: #f0f4f8;
  box-shadow: inset 0 0 0 1px var(--color-primary);
}

.choice-chip input:checked + span::after {
  border-color: var(--color-primary);
  background: var(--color-primary);
  content: "✓";
  font-size: 0.875rem;
  font-weight: 700;
}

.choice-chip input:focus-visible + span {
  outline: 3px solid #ffffff;
  outline-offset: 2px;
  box-shadow: 0 0 0 5px var(--color-primary);
}

.field-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-field {
  min-width: 0;
}

.form-field > label {
  display: inline-block;
  margin-bottom: 0.375rem;
}

.form-field input,
.form-field select {
  width: 100%;
  min-height: 48px;
  border: 1px solid #8a8f98;
  border-radius: 0.375rem;
  padding: 0.6875rem 0.75rem;
  background: var(--color-card);
  color: var(--color-text);
  line-height: 1.5;
}

.form-field input::placeholder {
  color: var(--color-text-secondary);
  opacity: 1;
}

.form-field input:hover,
.form-field select:hover {
  border-color: var(--color-primary);
}

.form-field input:focus-visible,
.form-field select:focus-visible {
  border-color: var(--color-primary);
}

.form-field input[aria-invalid="true"],
.form-field select[aria-invalid="true"] {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.consent-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.check-row {
  display: grid;
  min-height: 44px;
  grid-template-columns: 24px 1fr;
  align-items: start;
  gap: 0.75rem;
  padding-block: 0.5rem;
}

.check-row input {
  width: 22px;
  height: 22px;
  margin: 0.125rem 0 0;
  accent-color: var(--color-primary);
}

.check-row label {
  min-width: 0;
  line-height: 1.65;
}

.check-row--optional {
  border-top: 1px solid var(--color-border);
  margin-top: 0.25rem;
  padding-top: 0.75rem;
}

.field-error {
  margin: 0.375rem 0 0;
  color: var(--color-error);
  font-size: 0.875rem;
  font-weight: 700;
}

.security-check {
  min-height: 114px;
  margin-top: 1.5rem;
}

.field-label {
  margin: 0 0 0.5rem;
}

#turnstile-container {
  min-height: 65px;
  overflow: hidden;
}

.text-button {
  min-height: 44px;
  border: 0;
  padding: 0.5rem 0;
  background: transparent;
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.text-button:hover {
  color: var(--color-primary-light);
}

.text-button--full {
  width: 100%;
}

.notice {
  border: 1px solid;
  border-radius: 0.5rem;
  padding: 1rem;
}

.notice h3,
.notice p {
  margin: 0;
}

.notice p + p,
.notice h3 + p {
  margin-top: 0.5rem;
}

.notice--error {
  margin-block: 1.5rem;
  border-color: #fecaca;
  background: var(--color-error-bg);
  color: var(--color-error);
}

.notice--warning {
  margin-bottom: 1.5rem;
  border-color: #fde68a;
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.submission-note {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  text-align: center;
}

.success-panel,
.completion-panel {
  box-shadow: var(--shadow-elevated);
}

.success-mark {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  place-items: center;
  border: 2px solid var(--color-success);
  border-radius: 50%;
  background: var(--color-success-bg);
  color: var(--color-success);
  font-size: 1.5rem;
  font-weight: 700;
}

.success-panel h2,
.completion-panel h2 {
  margin: 0;
  font-family: "Noto Serif JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.75rem;
  line-height: 1.45;
}

.success-panel > p,
.completion-panel > p {
  margin: 0.75rem 0 0;
}

.enrichment-form {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.step-two-heading h3 {
  margin: 0;
  font-size: 1.25rem;
}

.step-two-heading p:last-child {
  margin: 0.375rem 0 0;
}

.role-details {
  margin-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}

.role-details > legend {
  padding-right: 0.5rem;
  color: var(--color-primary);
}

.role-details .field-grid {
  margin-top: 0.75rem;
}

.button-stack {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.completion-panel {
  text-align: center;
}

.completion-panel .success-mark {
  margin-inline: auto;
}

.completion-panel .button {
  margin-top: 1.5rem;
}

.faq {
  background: var(--color-card);
}

.section-shell--narrow {
  max-width: 48rem;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  background: var(--color-card);
}

.faq-list summary {
  min-height: 52px;
  padding: 0.875rem 3rem 0.875rem 1rem;
  font-weight: 700;
  cursor: pointer;
}

.faq-list details p {
  margin: 0;
  padding: 0 1rem 1rem;
  color: var(--color-text-secondary);
}

.site-footer {
  padding-block: 2rem;
  background: var(--color-dark);
  color: #d1d5db;
}

.site-footer__inner {
  display: grid;
  gap: 1.5rem;
}

.brand--footer {
  margin: 0;
  color: #ffffff;
}

.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.site-footer a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: #ffffff;
}

.copyright,
.site-footer__inner--compact p {
  margin: 0;
}

.policy-main {
  padding-block: 2rem 4rem;
}

.policy-card {
  width: min(100% - 2rem, 48rem);
  margin-inline: auto;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.policy-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.policy-header p:last-child {
  margin: 0.75rem 0 0;
  color: var(--color-text-secondary);
}

.policy-intro {
  margin-block: 1.5rem;
  border-left: 4px solid var(--color-primary);
  padding: 1rem;
  background: var(--color-bg);
}

.policy-intro p,
.policy-card section p,
.policy-card section ul {
  margin: 0;
}

.policy-card section:not(.contact-box) {
  margin-top: 2rem;
}

.policy-card section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  line-height: 1.5;
}

.policy-card section p + p,
.policy-card section p + ul,
.policy-card section ul + p {
  margin-top: 0.75rem;
}

.policy-card li + li {
  margin-top: 0.375rem;
}

.contact-box {
  margin-top: 2rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  padding: 1rem;
  background: var(--color-bg);
}

.contact-box p + p {
  margin-top: 0.5rem !important;
}

.policy-back {
  margin: 2rem 0 0;
  text-align: center;
}

.mobile-only {
  display: initial;
}

@media (min-width: 48rem) {
  .site-header__inner,
  .site-footer__inner,
  .section-shell,
  .hero__inner,
  .form-shell {
    width: min(100% - 4rem, 70rem);
  }

  .hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(18rem, 0.7fr);
    align-items: center;
    gap: 4rem;
    padding-block: 5rem;
  }

  .hero__cta {
    width: auto;
  }

  .intro,
  .faq,
  .registration {
    padding-block: 6rem;
  }

  .intro__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 4rem;
  }

  .form-card,
  .policy-card {
    padding: 2rem;
  }

  .chip-grid--roles,
  .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .role-details .field-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .site-footer nav {
    flex-direction: row;
    gap: 1.5rem;
  }

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

  .site-footer__inner--compact {
    display: block;
    text-align: center;
  }

  .policy-main {
    padding-block: 4rem 6rem;
  }

  .mobile-only {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .choice-chip input:checked + span::after,
  .success-mark {
    forced-color-adjust: none;
  }
}

/* Target forms reuse the Rin+ palette and mobile-first form primitives. */
.section-kicker,
.step-label { color: var(--color-primary); }
.eyebrow { color: var(--color-card); }
.form-heading > p:last-child { color: var(--color-text); }
.target-section {
  min-width: 0;
  margin: 2rem 0 1.5rem;
  border: 0;
  border-top: 1px solid var(--color-border);
  padding: 1rem 0 0;
}
.target-section > legend {
  padding-right: 0.5rem;
  color: var(--color-primary);
  font-size: 1.125rem;
  font-weight: 700;
}
.purpose-group {
  min-width: 0;
  margin: 1.5rem 0 0;
  border: 0;
  padding: 0;
}
.purpose-group > legend { font-weight: 700; }
.purpose-grid { display: grid; gap: 0.5rem; margin-top: 0.75rem; }
.purpose-choice {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--color-text-secondary);
  border-radius: 0.375rem;
  padding: 0.75rem;
  cursor: pointer;
}
.purpose-choice input { width: 20px; height: 20px; flex: 0 0 auto; margin: 0; accent-color: var(--color-primary); }
.purpose-choice:has(input:checked) { border-color: var(--color-primary); background: var(--color-bg); }
.purpose-choice:has(input:disabled) { color: var(--color-text-secondary); cursor: not-allowed; }
.family-actions { display: grid; margin-block: 1rem; }
.family-actions .text-button { text-align: left; }
.policy-card a { overflow-wrap: anywhere; }
@media (min-width: 481px) {
  .purpose-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .form-card { padding: 1rem; }
  .site-header__inner { gap: 0.5rem; }
  .brand { gap: 0.5rem; }
  .brand__mark { width: 24px; height: 24px; }
  .success-panel h2, .completion-panel h2 { font-size: 1.5rem; }
}