:root {
  --font-base: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-text: #2f2f2f;
  --color-text-subtle: #6e6e6e;
  --color-primary: #3b82f6;
  --color-muted: #f5f5f5;
  --color-border: #e5e3df;
  --shadow-soft: 0 16px 40px rgba(17, 24, 39, 0.12);
  --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.08);
  --color-accent-strong: #f97316;
  --color-accent-weak: #3b82f6;
}

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

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
}

.page__content {
  flex: 1;
}

.section {
  padding: 96px 20px;
}

.section--compact {
  padding: 64px 20px;
}

.section--dark {
  background: #0f172a;
  color: #f9fafb;
}

.section--muted {
  background: #f9fafb;
}

.section__inner {
  max-width: 1120px;
  margin: 0 auto;
}

.section__intro {
  text-align: center;
  margin-bottom: 64px;
}

.section__intro p {
  margin-top: 20px;
  font-size: 1.05rem;
  color: var(--color-text-subtle);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 28px;
  border-radius: 999px;
  font-weight: 600;
  background: var(--color-primary);
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 20px 40px rgba(59, 130, 246, 0.25);
}

.btn:hover,
.btn:focus {
  transform: translateY(-1px);
  box-shadow: 0 24px 50px rgba(59, 130, 246, 0.35);
}

.btn--secondary {
  background: #ffffff;
  color: var(--color-text);
  border: 1px solid rgba(199, 210, 254, 0.5);
  box-shadow: none;
}

.lp-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(203, 213, 225, 0.8);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
  z-index: 20;
}

.lp-header__inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
}

.hero {
  position: relative;
  isolation: isolate;
  text-align: center;
  padding: 160px 20px 140px;
  overflow: hidden;
  background-color: #0f172a;
  background-image: image-set(
    url('https://assets.catcareer.ai/background/hero.avif') type('image/avif'),
    url('https://assets.catcareer.ai/background/hero.webp') type('image/webp')
  );
  background-position: center;
  background-size: cover;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.3) 50%, rgba(15, 23, 42, 0.6) 100%);
  z-index: -1;
}

.hero__title {
  font-size: clamp(2.2rem, 3vw + 1rem, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #f8fafc;
}

.hero__description {
  margin-top: 26px;
  font-size: 1.15rem;
  color: rgba(248, 250, 252, 0.88);
  line-height: 1.8;
}

.hero__note {
  margin-top: 72px;
  font-size: 1rem;
  color: rgba(226, 232, 240, 0.9);
}

html.fonts-ready .hero__title {
  text-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.familiar-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.familiar-card {
  background: #ffffff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  min-height: 360px;
}

.familiar-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 50px rgba(15, 23, 42, 0.12);
}

.familiar-card__banner {
  position: relative;
  height: 120px;
}

.familiar-card__avatar {
  position: absolute;
  left: 24px;
  bottom: -32px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  padding: 6px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.18);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.familiar-card__avatar picture,
.familiar-card__avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.familiar-card__body {
  padding: 48px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex: 1;
}

.familiar-card__copy {
  font-weight: 600;
  font-size: 1.05rem;
}

.familiar-card__description {
  font-size: 0.95rem;
  color: var(--color-text-subtle);
  line-height: 1.7;
}

.familiar-card--claris .familiar-card__banner {
  background: linear-gradient(135deg, #e0f2fe 0%, #a5f3fc 100%);
}

.familiar-card--tipi .familiar-card__banner {
  background: linear-gradient(135deg, #f0fdf4 0%, #bbf7d0 100%);
}

.familiar-card--luce .familiar-card__banner {
  background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
}

.familiar-card--nick .familiar-card__banner {
  background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
}

@media (max-width: 768px) {
  .familiar-card {
    min-height: 320px;
  }
}

.worldview {
  font-size: 1.25rem;
  line-height: 2.1;
  letter-spacing: 0.01em;
  display: grid;
  gap: 36px;
}

.chat {
  display: grid;
  gap: 32px;
}

.chat-scenario {
  background: #ffffff;
  border-radius: 24px;
  box-shadow: var(--shadow-card);
  padding: 32px;
}

.chat-scenario__title {
  font-size: 1.25rem;
  margin-bottom: 20px;
}

.chat-turn {
  display: flex;
  gap: 16px;
  margin-bottom: 18px;
}

.chat-turn:last-child {
  margin-bottom: 0;
}

.chat-turn--user {
  justify-content: flex-end;
}

.chat-turn__bubble {
  max-width: 620px;
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 0.98rem;
  background: #f3f4f6;
  color: var(--color-text);
  line-height: 1.6;
}

.chat-turn--assistant .chat-turn__bubble {
  background: #eff6ff;
}

.chat-turn__avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.16);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.trust-card {
  text-align: center;
  padding: 16px;
}

.trust-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: rgba(148, 163, 184, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.trust-card__title {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.trust-card__body {
  color: var(--color-text-subtle);
  font-size: 1rem;
}

.lp-footer {
  background: #ffffff;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
  padding: 48px 20px;
}

.lp-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
}

.lp-footer__group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  flex: 1 1 520px;
}

.lp-footer__nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.95rem;
}

.lp-footer__label {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin: 0 0 6px;
}

.lp-footer__nav a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

.lp-footer__nav a:hover,
.lp-footer__nav a:focus-visible {
  color: var(--color-text-subtle);
  text-decoration: underline;
}

.lp-footer__nav--legal a {
  color: #667085;
  font-size: 0.9rem;
}

.lp-footer__copy {
  margin-left: auto;
  font-size: 0.85rem;
  color: #6b778c;
  text-align: right;
}

@media (max-width: 720px) {
  .lp-footer__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 28px;
  }

  .lp-footer__group {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .lp-footer__copy {
    margin-left: 0;
    text-align: left;
  }
}

.legal {
  padding: 96px 20px;
  background: #ffffff;
  border-top: 1px solid rgba(203, 213, 225, 0.7);
}

.legal__inner {
  max-width: 840px;
  margin: 0 auto;
}

.legal__meta {
  margin-top: 40px;
  font-size: 0.95rem;
  color: var(--color-text-subtle);
}

.legal h1 {
  font-size: clamp(2rem, 2.4vw + 1rem, 2.8rem);
}

.legal h2 {
  margin-top: 48px;
  font-size: 1.6rem;
  position: relative;
  padding-left: 18px;
}

.legal h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  width: 6px;
  height: 24px;
  border-radius: 999px;
  background: var(--color-primary);
}

.legal h3 {
  margin-top: 28px;
  font-size: 1.3rem;
}

.legal p,
.legal li {
  font-size: 1rem;
  color: var(--color-text);
}

.legal ul {
  margin: 20px 0 0 24px;
  padding: 0;
}

.legal li {
  margin-bottom: 12px;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 0.95rem;
}

.legal table th,
.legal table td {
  border: 1px solid rgba(148, 163, 184, 0.4);
  padding: 14px 16px;
  text-align: left;
}

.legal table th {
  background: rgba(248, 250, 252, 0.8);
}

.help article ul {
  list-style: disc;
  margin-left: 24px;
}

.help article a {
  color: var(--color-primary);
}

.help article a:hover {
  text-decoration: underline;
}

.toc {
  margin: 40px 0;
  padding: 24px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(248, 250, 252, 0.8);
}

.toc ul {
  margin: 0;
  padding-left: 18px;
}

.toc li {
  margin-bottom: 10px;
}

.contact-list {
  display: grid;
  gap: 18px;
}

.contact-list a {
  color: var(--color-primary);
  font-weight: 600;
}

.license-app {
  padding: 72px 20px 96px;
  background: #ffffff;
}

.license-app__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.license-app__search {
  margin: 32px 0;
}

.license-app__search input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.35);
  font-size: 0.95rem;
}

.license-list {
  display: grid;
  gap: 20px;
}

.license-card {
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 18px 30px rgba(15, 23, 42, 0.08);
}

.license-card h2 {
  font-size: 1.2rem;
  margin-bottom: 14px;
  word-break: break-word;
}

.license-card ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.95rem;
  color: var(--color-text-subtle);
}

.license-card li {
  margin-bottom: 8px;
}

.license-card details {
  margin-top: 16px;
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  padding-top: 12px;
}

.license-card details[open] summary {
  color: var(--color-primary);
}

.license-card summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.license-card summary::marker,
.license-card summary::-webkit-details-marker {
  display: none;
}

.license-card pre {
  margin-top: 12px;
  background: rgba(248, 250, 252, 0.9);
  border-radius: 12px;
  padding: 16px;
  font-size: 0.85rem;
  max-height: 420px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.license-card__source {
  margin-top: 8px;
  font-size: 0.78rem;
  color: rgba(110, 110, 110, 0.7);
}

.license-empty {
  font-size: 0.95rem;
  color: var(--color-text-subtle);
  padding: 24px;
  border-radius: 12px;
  border: 1px dashed rgba(148, 163, 184, 0.4);
  background: rgba(248, 250, 252, 0.7);
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body.auth-modal-open {
  overflow: hidden;
}

.auth-modal-backdrop {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  z-index: 200;
  padding: 24px;
  transition: opacity 0.2s ease;
  opacity: 0;
}

.auth-modal-backdrop.is-visible {
  display: flex;
  opacity: 1;
}

.auth-modal {
  position: relative;
  width: min(100%, 480px);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.24);
  overflow: hidden;
}

.auth-modal__close {
  position: absolute;
  top: 16px;
  right: 20px;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  color: #1f2937;
  font-size: 20px;
  border-radius: 999px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.12);
}

.auth-modal__close:hover,
.auth-modal__close:focus {
  background: #ffffff;
}

.auth-modal__banner {
  height: 48px;
  background: linear-gradient(135deg, #f0f4f8 0%, #e0e7ef 100%);
}

.auth-modal__body {
  padding: 32px 32px 36px;
}

.auth-modal__heading {
  text-align: center;
}

.auth-modal__title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
}

.auth-modal__subtitle {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--color-text-subtle);
}

.auth-modal__actions {
  margin-top: 32px;
  display: flex;
  justify-content: center;
}

.auth-modal__google {
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.auth-modal__google:hover,
.auth-modal__google:focus {
  transform: translateY(-1px);
}

.auth-modal__terms {
  margin-top: 32px;
  font-size: 0.78rem;
  color: rgba(110, 110, 110, 0.9);
  text-align: center;
  line-height: 1.7;
}

.auth-modal__terms a {
  color: var(--color-primary);
}

.auth-modal__terms a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .section {
    padding: 72px 18px;
  }

  .hero {
    padding: 140px 18px 120px;
  }

  .hero__description br {
    display: none;
  }

  .hero__note {
    margin-top: 48px;
  }

  .familiar-card__avatar {
    left: 20px;
  }

  .chat-scenario {
    padding: 24px;
  }

.chat-turn__bubble {
  font-size: 0.92rem;
}
}

.iab-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
}

.iab-modal__surface {
  width: min(440px, 100%);
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.2);
  padding: 32px 28px;
  text-align: center;
  border-top: 6px solid transparent;
}

.iab-modal--strong .iab-modal__surface {
  border-top-color: var(--color-accent-strong);
}

.iab-modal--weak .iab-modal__surface {
  border-top-color: var(--color-accent-weak);
}

.iab-modal__title {
  font-size: 1.35rem;
  margin-bottom: 16px;
  color: var(--color-text);
}

.iab-modal__body {
  font-size: 0.95rem;
  color: var(--color-text-subtle);
  line-height: 1.6;
  margin-bottom: 28px;
}

.iab-modal__actions {
  display: flex;
  justify-content: center;
}

.iab-modal__btn {
  min-width: 140px;
  padding: 14px 24px;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  color: #ffffff;
  background: var(--color-primary);
  box-shadow: 0 18px 36px rgba(59, 130, 246, 0.25);
}

.iab-modal--strong .iab-modal__btn {
  background: var(--color-accent-strong);
  box-shadow: 0 18px 36px rgba(249, 115, 22, 0.25);
}

.iab-modal__btn:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.35);
  outline-offset: 2px;
}

.iab-modal__btn:hover,
.iab-modal__btn:focus {
  transform: translateY(-1px);
  box-shadow: 0 22px 44px rgba(59, 130, 246, 0.35);
}

.iab-modal--strong .iab-modal__btn:hover,
.iab-modal--strong .iab-modal__btn:focus {
  box-shadow: 0 22px 44px rgba(249, 115, 22, 0.35);
}

@media (max-width: 560px) {
  .iab-modal {
    padding: 16px;
  }

  .iab-modal__surface {
    padding: 28px 22px;
  }

  .iab-modal__title {
    font-size: 1.2rem;
  }

  .iab-modal__body {
    font-size: 0.9rem;
  }

  .iab-modal__btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .btn:hover,
  .btn:focus,
  .familiar-card:hover {
    transform: none;
    box-shadow: var(--shadow-card);
  }
}