:root {
  --page-max-width: 1200px;
  --section-gap: var(--scale-15);
  --hero-min-height: 340px;
  --card-bg: var(--color-bg-secondary);
  --card-border: 1px solid var(--color-border-secondary);
  --card-radius: var(--border-radius);
  --faq-accent: var(--color-accent);
}

/* =============================================
   SHARED PAGE LAYOUT
   ============================================= */

.sub-page-root {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: var(--color-bg-main);
  color: var(--color-text);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  overflow-x: hidden;
}

.sub-page-main {
  flex: 1;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 120px var(--scale-5) var(--scale-20);
}

@media (min-width: 640px) {
  .sub-page-main {
    padding-left: var(--scale-12);
    padding-right: var(--scale-12);
  }
}

@media (min-width: 1024px) {
  .sub-page-main {
    padding-left: var(--scale-13);
    padding-right: var(--scale-13);
  }
}

@media (min-width: 1280px) {
  .sub-page-main {
    padding-left: var(--scale-20);
    padding-right: var(--scale-20);
  }
}

/* =============================================
   SUBPAGE HEADER / NAV
   ============================================= */

.sub-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background-color: var(--color-bg-main);
  border-bottom: 1px solid var(--color-border-secondary);
}

.sub-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--scale-5) var(--scale-5);
  gap: var(--scale-4);
}

@media (min-width: 640px) {
  .sub-header-inner {
    padding-left: var(--scale-12);
    padding-right: var(--scale-12);
  }
}

@media (min-width: 1024px) {
  .sub-header-inner {
    padding-left: var(--scale-13);
    padding-right: var(--scale-13);
  }
}

@media (min-width: 1280px) {
  .sub-header-inner {
    padding-left: var(--scale-20);
    padding-right: var(--scale-20);
  }
}

.sub-header-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
  max-width: 130px;
  transition: var(--transition-default);
}

.sub-header-logo:hover {
  opacity: 0.7;
}

.sub-header-logo img,
.sub-header-logo svg {
  width: 100%;
  height: auto;
  max-height: 40px;
}

.sub-header-nav {
  display: flex;
  align-items: center;
  gap: var(--scale-6);
}

.sub-nav-link {
  color: var(--color-text);
  text-decoration: none;
  font: var(--font-body-1);
  font-weight: var(--font-weight-body-1);
  transition: var(--transition-default);
  white-space: nowrap;
}

.sub-nav-link:hover {
  color: var(--color-accent);
  opacity: 1;
}

.sub-nav-link.active {
  color: var(--color-accent);
  font-weight: var(--font-weight-subtitle-1-active);
}

.sub-header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--button-height-m);
  padding: var(--button-padding-m);
  border-radius: var(--button-border-radius-m);
  background: var(--button-background-primary);
  color: var(--button-color-text-primary);
  border: var(--button-border-primary);
  text-decoration: none;
  font: var(--font-subtitle-2);
  font-weight: var(--font-weight-subtitle-2);
  transition: var(--transition-default);
  white-space: nowrap;
}

.sub-header-btn:hover {
  opacity: 0.7;
}

/* =============================================
   HERO SECTION (FAQ & ABOUT)
   ============================================= */

.sub-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  min-height: var(--hero-min-height);
  padding-bottom: var(--scale-10);
  overflow: hidden;
}

.sub-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-add-gradient);
  pointer-events: none;
  z-index: 0;
}

.sub-hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--scale-4);
  max-width: 760px;
}

.sub-hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--scale-2);
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
}

.sub-hero-breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition-default);
}

.sub-hero-breadcrumb a:hover {
  opacity: 0.7;
}

.sub-hero-breadcrumb-sep {
  color: var(--color-border-secondary);
}

.sub-hero-h1 {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.2;
  background: var(--color-gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}

@media (min-width: 640px) {
  .sub-hero-h1 {
    font-size: 46px;
    line-height: 1.15;
  }
}

@media (min-width: 1024px) {
  .sub-hero-h1 {
    font-size: 58px;
  }
}

.sub-hero-subtitle {
  max-width: 600px;
  color: var(--color-text-secondary);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  margin: 0;
}

/* =============================================
   PAGE SECTION CONTAINER
   ============================================= */

.sub-section {
  display: flex;
  flex-direction: column;
  gap: var(--scale-8);
  padding: var(--section-gap) 0;
  max-width: 100%;
}

.sub-section + .sub-section {
  border-top: 1px solid var(--color-border-secondary);
}

.sub-section-header {
  display: flex;
  flex-direction: column;
  gap: var(--scale-3);
  max-width: 700px;
}

.sub-section-h2 {
  font: var(--font-heading-1);
  font-weight: var(--font-weight-heading-1);
  font-size: 26px;
  line-height: 1.25;
  background: var(--color-gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}

@media (min-width: 640px) {
  .sub-section-h2 {
    font-size: 34px;
  }
}

.sub-section-lead {
  color: var(--color-text-secondary);
  font: var(--font-body-1);
  font-weight: 400;
  line-height: 1.65;
  max-width: 640px;
}

/* =============================================
   FAQ ACCORDION
   ============================================= */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--scale-3);
  width: 100%;
  max-width: 900px;
}

.faq-item {
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  overflow: hidden;
  transition: border-color var(--transition-default-duration) ease-in-out;
}

.faq-item:hover {
  border-color: var(--color-accent);
}

.faq-item.open {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--scale-5) var(--scale-6);
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  gap: var(--scale-4);
  text-align: left;
  transition: var(--transition-default);
  outline: none;
}

.faq-question:hover {
  opacity: 0.85;
}

.faq-question-text {
  font: var(--font-subtitle-1);
  font-weight: var(--font-weight-subtitle-1-active);
  line-height: 1.4;
  flex: 1;
}

.faq-question-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  transition: transform var(--transition-default-duration) ease-in-out;
}

.faq-item.open .faq-question-icon {
  transform: rotate(180deg);
}

.faq-question-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.faq-answer {
  display: none;
  padding: 0 var(--scale-6) var(--scale-5);
  color: var(--color-text-secondary);
  font: var(--font-body-1);
  font-weight: 400;
  line-height: 1.7;
}

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

.faq-answer p {
  margin: 0 0 var(--scale-3);
}

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

.faq-answer a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: var(--transition-default);
}

.faq-answer a:hover {
  opacity: 0.7;
}

.faq-answer ul,
.faq-answer ol {
  padding-left: var(--scale-6);
  margin: var(--scale-3) 0;
  display: flex;
  flex-direction: column;
  gap: var(--scale-2);
}

.faq-answer ul {
  list-style: disc;
}

.faq-answer ol {
  list-style: decimal;
}

.faq-answer li {
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* =============================================
   ABOUT PAGE — CONTENT CARDS GRID
   ============================================= */

.about-grid {
  display: grid;
  gap: var(--scale-4);
  grid-template-columns: 1fr;
  width: 100%;
}

@media (min-width: 640px) {
  .about-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.about-card {
  display: flex;
  flex-direction: column;
  padding: var(--scale-6);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  gap: var(--scale-4);
  transition: border-color var(--transition-default-duration) ease-in-out,
    background var(--transition-default-duration) ease-in-out;
}

.about-card:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-tertiary);
}

.about-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-gradient-tertiary);
  color: #fff;
  flex-shrink: 0;
}

.about-card-icon svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.about-card-title {
  font: var(--font-heading-2);
  font-weight: var(--font-weight-heading-2);
  color: var(--color-text);
  margin: 0;
}

.about-card-text {
  color: var(--color-text-secondary);
  font: var(--font-body-1);
  font-weight: 400;
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

/* =============================================
   ABOUT PAGE — FULL-WIDTH TEXT SECTION
   ============================================= */

.about-text-block {
  display: flex;
  flex-direction: column;
  gap: var(--scale-4);
  max-width: 860px;
}

.about-text-block p {
  color: var(--color-text-secondary);
  font: var(--font-body-1);
  font-weight: 400;
  line-height: 1.7;
  margin: 0;
}

.about-text-block strong {
  color: var(--color-text);
  font-weight: var(--font-weight-subtitle-1-active);
}

.about-text-block a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: var(--transition-default);
}

.about-text-block a:hover {
  opacity: 0.7;
}

/* =============================================
   ABOUT PAGE — STAT ROW
   ============================================= */

.about-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--scale-4);
  width: 100%;
}

.about-stat-item {
  display: flex;
  flex-direction: column;
  flex: 1 0 160px;
  padding: var(--scale-5);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--border-radius);
  background: var(--card-bg);
  gap: var(--scale-2);
  min-width: 140px;
}

.about-stat-value {
  font: var(--font-accent-1);
  font-weight: var(--font-weight-accent-1);
  color: var(--color-accent);
  line-height: 1;
}

.about-stat-label {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
}

/* =============================================
   ABOUT PAGE — TWO COLUMN LAYOUT
   ============================================= */

.about-two-col {
  display: flex;
  flex-direction: column;
  gap: var(--scale-8);
  width: 100%;
}

@media (min-width: 1024px) {
  .about-two-col {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--scale-15);
  }
}

.about-two-col-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--scale-4);
}

.about-two-col-aside {
  flex: 0 0 340px;
  display: flex;
  flex-direction: column;
  gap: var(--scale-4);
}

@media (max-width: 1023px) {
  .about-two-col-aside {
    flex: none;
    width: 100%;
  }
}

/* =============================================
   ABOUT PAGE — TEAM / HIGHLIGHT LIST
   ============================================= */

.about-highlight-list {
  display: flex;
  flex-direction: column;
  gap: var(--scale-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.about-highlight-item {
  display: flex;
  align-items: flex-start;
  gap: var(--scale-4);
  padding: var(--scale-4);
  border-radius: var(--border-radius-s);
  background: var(--card-bg);
  border: 1px solid var(--color-border-secondary);
  transition: border-color var(--transition-default-duration) ease-in-out;
}

.about-highlight-item:hover {
  border-color: var(--color-accent);
}

.about-highlight-dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-top: 5px;
}

.about-highlight-content {
  display: flex;
  flex-direction: column;
  gap: var(--scale-1);
}

.about-highlight-title {
  font: var(--font-subtitle-1);
  font-weight: var(--font-weight-subtitle-1-active);
  color: var(--color-text);
}

.about-highlight-desc {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: 400;
  line-height: 1.6;
}

/* =============================================
   ABOUT PAGE — STEP PROCESS
   ============================================= */

.about-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  max-width: 800px;
}

.about-step {
  display: flex;
  gap: var(--scale-6);
  position: relative;
}

.about-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 19px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent) 0%, transparent 100%);
  opacity: 0.3;
}

.about-step-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-gradient-tertiary);
  color: #fff;
  font: var(--font-heading-2);
  font-weight: var(--font-weight-heading-2);
  z-index: 1;
}

.about-step-body {
  display: flex;
  flex-direction: column;
  gap: var(--scale-2);
  padding-bottom: var(--scale-8);
  flex: 1;
}

.about-step-title {
  font: var(--font-subtitle-1);
  font-weight: var(--font-weight-subtitle-1-active);
  color: var(--color-text);
  margin: 0;
  padding-top: var(--scale-2);
}

.about-step-text {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: 400;
  line-height: 1.65;
  margin: 0;
}

/* =============================================
   SHARED — INLINE BADGE / TAG
   ============================================= */

.sub-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--scale-1) var(--scale-3);
  border-radius: var(--scale-7-5);
  background: var(--color-gradient-tag);
  border: 1px solid var(--color-border-secondary);
  color: var(--color-accent);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  white-space: nowrap;
}

.sub-badge-success {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success);
}

.sub-badge-warning {
  border-color: var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

/* =============================================
   SHARED — DIVIDER
   ============================================= */

.sub-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border-secondary);
  border: none;
  margin: 0;
}

/* =============================================
   SHARED — BUTTONS
   ============================================= */

.sub-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--button-height-m);
  padding: var(--button-padding-m);
  border-radius: var(--button-border-radius-m);
  background: var(--button-background-primary);
  color: var(--button-color-text-primary);
  border: var(--button-border-primary);
  text-decoration: none;
  font: var(--font-subtitle-2);
  font-weight: var(--font-weight-subtitle-2);
  cursor: pointer;
  transition: var(--transition-default);
  white-space: nowrap;
}

.sub-btn-primary:hover {
  opacity: 0.7;
}

.sub-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--button-height-m);
  padding: var(--button-padding-m);
  border-radius: var(--button-border-radius-m);
  background: var(--button-background-outline);
  color: var(--button-color-text-outline);
  border: var(--button-border-outline);
  text-decoration: none;
  font: var(--font-subtitle-2);
  font-weight: var(--font-weight-subtitle-2);
  cursor: pointer;
  transition: var(--transition-default);
  white-space: nowrap;
}

.sub-btn-outline:hover {
  opacity: 0.7;
}

.sub-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--button-height-m);
  padding: var(--button-padding-m);
  border-radius: var(--button-border-radius-m);
  background: transparent;
  color: var(--color-accent);
  border: none;
  text-decoration: none;
  font: var(--font-subtitle-2);
  font-weight: var(--font-weight-subtitle-2);
  cursor: pointer;
  transition: var(--transition-default);
  white-space: nowrap;
  gap: var(--scale-2);
}

.sub-btn-ghost:hover {
  opacity: 0.7;
}

.sub-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--scale-4);
  align-items: center;
}

/* =============================================
   SHARED — CTA BLOCK
   ============================================= */

.sub-cta-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--scale-12) var(--scale-6);
  border-radius: var(--border-radius-l);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border: 1px solid var(--color-border-secondary);
  gap: var(--scale-6);
  width: 100%;
}

.sub-cta-block-title {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.3;
  background: var(--color-gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 560px;
  margin: 0;
}

@media (min-width: 640px) {
  .sub-cta-block-title {
    font-size: 34px;
  }
}

.sub-cta-block-desc {
  max-width: 480px;
  color: var(--color-text-secondary);
  font: var(--font-body-1);
  font-weight: 400;
  line-height: 1.6;
  margin: 0;
}

/* =============================================
   SHARED — INLINE LINK
   ============================================= */

.sub-inline-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: var(--transition-default);
}

.sub-inline-link:hover {
  opacity: 0.7;
}

/* =============================================
   SHARED — INTERNAL LINK BANNER
   ============================================= */

.sub-link-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--scale-3);
  padding: var(--scale-4) var(--scale-6);
  border-radius: var(--border-radius-s);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-secondary);
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
}

.sub-link-banner a {
  color: var(--color-accent);
  font-weight: var(--font-weight-subtitle-1-active);
  text-decoration: none;
  transition: var(--transition-default);
}

.sub-link-banner a:hover {
  opacity: 0.7;
}

/* =============================================
   SHARED — FOOTER
   ============================================= */

.sub-footer {
  width: 100%;
  background: var(--color-bg-footer);
  margin-top: auto;
}

.sub-footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--scale-10) var(--scale-5);
  gap: var(--scale-6);
}

@media (min-width: 640px) {
  .sub-footer-inner {
    padding-left: var(--scale-12);
    padding-right: var(--scale-12);
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: 1280px) {
  .sub-footer-inner {
    padding-left: var(--scale-20);
    padding-right: var(--scale-20);
  }
}

.sub-footer-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
  transition: var(--transition-default);
}

.sub-footer-logo:hover {
  opacity: 0.7;
}

.sub-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--scale-4) var(--scale-6);
  align-items: center;
}

.sub-footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  transition: var(--transition-default);
}

.sub-footer-link:hover {
  color: var(--color-text);
}

.sub-footer-copy {
  color: var(--color-text-secondary);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}

/* =============================================
   FAQ PAGE — SEARCH HINT / COUNT
   ============================================= */

.faq-meta {
  display: flex;
  align-items: center;
  gap: var(--scale-4);
  flex-wrap: wrap;
  margin-bottom: var(--scale-2);
}

.faq-count {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
}

/* =============================================
   FAQ PAGE — CATEGORY TABS
   ============================================= */

.faq-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--scale-3);
  margin-bottom: var(--scale-2);
}

.faq-category-btn {
  display: flex;
  align-items: center;
  padding: var(--scale-2) var(--scale-4);
  border-radius: var(--scale-7-5);
  border: 1px solid var(--color-border-secondary);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  transition: var(--transition-default);
  white-space: nowrap;
}

.faq-category-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.faq-category-btn.active {
  border-color: var(--color-accent);
  background: var(--color-gradient-tag);
  color: var(--color-accent);
}

/* =============================================
   FAQ PAGE — SECTION TITLE
   ============================================= */

.faq-group-title {
  font: var(--font-heading-2);
  font-weight: var(--font-weight-heading-2);
  color: var(--color-accent);
  margin: 0 0 var(--scale-2);
}

/* =============================================
   ABOUT PAGE — MISSION STATEMENT BLOCK
   ============================================= */

.about-mission {
  display: flex;
  flex-direction: column;
  gap: var(--scale-5);
  padding: var(--scale-8) var(--scale-8);
  border-radius: var(--border-radius-l);
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
  border: 1px solid var(--color-border-secondary);
  position: relative;
  overflow: hidden;
  max-width: 100%;
}

.about-mission::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-gradient-tertiary);
}

.about-mission-quote {
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
  margin: 0;
  max-width: 760px;
}

@media (min-width: 640px) {
  .about-mission-quote {
    font-size: 20px;
  }
}

.about-mission-source {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
}

/* =============================================
   ABOUT PAGE — TECH STACK / PROTOCOL LIST
   ============================================= */

.about-tech-grid {
  display: grid;
  gap: var(--scale-3);
  grid-template-columns: 1fr;
  width: 100%;
}

@media (min-width: 640px) {
  .about-tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .about-tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.about-tech-item {
  display: flex;
  flex-direction: column;
  gap: var(--scale-3);
  padding: var(--scale-5);
  border-radius: var(--border-radius-s);
  border: 1px solid var(--color-border-secondary);
  background: var(--card-bg);
  transition: border-color var(--transition-default-duration) ease-in-out;
}

.about-tech-item:hover {
  border-color: var(--color-accent);
}

.about-tech-label {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
}

.about-tech-value {
  color: var(--color-text);
  font: var(--font-subtitle-1);
  font-weight: var(--font-weight-subtitle-1-active);
}

/* =============================================
   BACK / HOME BUTTON ROW
   ============================================= */

.sub-back-row {
  display: flex;
  align-items: center;
  gap: var(--scale-4);
  flex-wrap: wrap;
  padding: var(--scale-8) 0 0;
  border-top: 1px solid var(--color-border-secondary);
  margin-top: var(--scale-6);
}

.sub-back-row p {
  color: var(--color-text-secondary);
  font: var(--font-body-2);
  font-weight: var(--font-weight-body-2);
  margin: 0;
}

/* =============================================
   UTILITY — VISUALLY HIDDEN
   ============================================= */

.sub-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;
}

/* =============================================
   UTILITY — MAX WIDTH WRAPPERS
   ============================================= */

.sub-content-narrow {
  max-width: 720px;
  width: 100%;
}

.sub-content-wide {
  max-width: 1100px;
  width: 100%;
}

/* =============================================
   RESPONSIVE — MOBILE OVERRIDES
   ============================================= */

@media (max-width: 639px) {
  .sub-hero-h1 {
    font-size: 28px;
  }

  .sub-section-h2 {
    font-size: 22px;
  }

  .about-mission-quote {
    font-size: 16px;
  }

  .faq-question {
    padding: var(--scale-4);
  }

  .faq-answer {
    padding: 0 var(--scale-4) var(--scale-4);
  }

  .about-card {
    padding: var(--scale-5);
  }

  .about-stat-item {
    flex: 1 0 120px;
  }

  .sub-cta-block {
    padding: var(--scale-8) var(--scale-5);
  }
}