:root {
  --color-bg: rgb(220, 226, 233);
  --color-surface: rgb(235, 239, 243);
  --color-surface-hover: rgb(255, 255, 255);
  --color-border: rgb(199, 211, 221);
  --color-text-primary: rgb(46, 49, 55);
  --color-text-secondary: rgb(121, 124, 143);
  --color-accent: rgb(0, 116, 240);
  --color-accent-hover: rgb(0, 81, 168);
  --font-main: mono, dm, inter, Helvetica, Arial, sans-serif;
}

/* ===================== FAQ SECTION ON INDEX ===================== */

.faq-section {
  max-width: 1200px;
  margin: 64px auto 48px auto;
  padding: 0 24px;
  overflow-x: hidden;
  box-sizing: border-box;
}

.faq-section__hero-title {
  font-family: var(--font-main);
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
  text-align: center;
  margin: 0 0 12px 0;
}

@media (max-width: 599px) {
  .faq-section__hero-title {
    font-size: 28px;
    line-height: 1.05;
  }
}

.faq-section__hero-subtitle {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-align: center;
  margin: 0 0 40px 0;
  line-height: 1.428;
}

.faq-section__heading {
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 16px 0;
}

.faq-list {
  list-style: none;
  margin: 0 0 40px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: background-color 0.2s ease;
}

.faq-item.is-open {
  background-color: var(--color-surface-hover);
}

.faq-question {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  padding: 18px 20px;
  text-align: left;
  gap: 12px;
  box-sizing: border-box;
}

.faq-question:hover {
  background-color: rgba(0, 116, 240, 0.04);
}

.faq-question h2 {
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin: 0;
  flex: 1;
}

@media (max-width: 599px) {
  .faq-question h2 {
    font-size: 13px;
  }
}

.faq-question__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.is-open .faq-question__icon {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 20px 18px 20px;
  box-sizing: border-box;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.faq-answer h3 {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 599px) {
  .faq-answer h3 {
    font-size: 13px;
  }
}

.faq-section__links {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.faq-section__link {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 20px;
  background-color: var(--color-surface);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.faq-section__link:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

/* ===================== SUBPAGE SHARED ===================== */

.subpage-body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-main);
  font-size: 14px;
  line-height: 1.428;
  font-weight: 400;
  min-width: 320px;
  box-sizing: border-box;
}

.subpage-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 40px;
  box-sizing: border-box;
}

@media (max-width: 599px) {
  .subpage-nav {
    padding: 0 20px;
    height: 56px;
  }
}

.subpage-nav__logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.subpage-nav__logo-link svg {
  height: 22px;
  width: auto;
}

@media (max-width: 599px) {
  .subpage-nav__logo-link svg {
    height: 16px;
  }
}

.subpage-nav__back {
  margin-left: auto;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 16px;
  background-color: transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.subpage-nav__back:hover {
  background-color: var(--color-surface-hover);
  border-color: rgb(159, 168, 176);
}

.subpage-spacer {
  height: 64px;
}

@media (max-width: 599px) {
  .subpage-spacer {
    height: 56px;
  }
}

.subpage-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 24px 80px 24px;
  box-sizing: border-box;
  overflow-x: hidden;
}

@media (max-width: 599px) {
  .subpage-container {
    padding: 32px 16px 60px 16px;
  }
}

/* ===================== SUBPAGE HERO ===================== */

.subpage-hero {
  text-align: center;
  margin-bottom: 48px;
}

.subpage-hero__label {
  display: inline-block;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: rgba(0, 116, 240, 0.08);
  border-radius: 6px;
  padding: 4px 12px;
  margin-bottom: 16px;
}

.subpage-hero__title {
  font-family: var(--font-main);
  font-size: 38px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
  margin: 0 0 14px 0;
}

@media (max-width: 599px) {
  .subpage-hero__title {
    font-size: 26px;
  }
}

.subpage-hero__desc {
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 auto;
  max-width: 600px;
}

/* ===================== SUBPAGE CARD ===================== */

.subpage-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 28px;
  margin-bottom: 16px;
  box-sizing: border-box;
}

@media (max-width: 599px) {
  .subpage-card {
    padding: 20px 16px;
  }
}

.subpage-card__title {
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.subpage-card__text {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin: 0;
}

.subpage-card__text + .subpage-card__text {
  margin-top: 10px;
}

.subpage-card--accent {
  background-color: rgba(0, 116, 240, 0.05);
  border-color: rgba(0, 116, 240, 0.2);
}

/* ===================== SUBPAGE DIVIDER ===================== */

.subpage-divider {
  height: 1px;
  background-color: var(--color-border);
  border: none;
  margin: 40px 0;
}

/* ===================== FAQ PAGE SPECIFIC ===================== */

.faq-page-list {
  list-style: none;
  margin: 0 0 40px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-page-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.faq-page-item.is-open {
  background-color: var(--color-surface-hover);
}

.faq-page-question {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  cursor: pointer;
  padding: 18px 20px;
  text-align: left;
  gap: 12px;
  box-sizing: border-box;
}

.faq-page-question:hover {
  background-color: rgba(0, 116, 240, 0.04);
}

.faq-page-question h2 {
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin: 0;
  flex: 1;
}

@media (max-width: 599px) {
  .faq-page-question h2 {
    font-size: 13px;
  }
}

.faq-page-question__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-page-item.is-open .faq-page-question__icon {
  transform: rotate(180deg);
}

.faq-page-answer {
  display: none;
  padding: 0 20px 18px 20px;
  box-sizing: border-box;
}

.faq-page-item.is-open .faq-page-answer {
  display: block;
}

.faq-page-answer p {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin: 0 0 8px 0;
}

.faq-page-answer p:last-child {
  margin-bottom: 0;
}

/* ===================== ABOUT PAGE SPECIFIC ===================== */

.about-stats {
  display: flex;
  flex-direction: row;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.about-stat {
  flex: 1 1 160px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 20px 20px;
  box-sizing: border-box;
  text-align: center;
}

.about-stat__value {
  font-family: var(--font-main);
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
  margin: 0 0 6px 0;
  display: block;
}

.about-stat__label {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.3;
  display: block;
}

.about-team-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.about-team-card {
  flex: 1 1 200px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px 20px;
  box-sizing: border-box;
}

.about-team-card__name {
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 4px 0;
}

.about-team-card__role {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 400;
  color: var(--color-accent);
  margin: 0 0 10px 0;
}

.about-team-card__desc {
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* ===================== SUBPAGE FOOTER LINKS ===================== */

.subpage-footer-links {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.subpage-footer-link {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 22px;
  background-color: var(--color-surface);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.subpage-footer-link:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-accent);
}

.subpage-footer-link--primary {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.subpage-footer-link--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* ===================== SECTION LABEL ===================== */

.section-label {
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 12px 0;
  display: block;
}

/* ===================== HIGHLIGHT CHIP ===================== */

.highlight-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(0, 116, 240, 0.08);
  border: 1px solid rgba(0, 116, 240, 0.15);
  border-radius: 20px;
  padding: 4px 12px;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ===================== UTILITY ===================== */

.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }