/* ============== ABOUT SECTIONS ============== */
.about-section { padding: 90px 0; }
.about-section .sec-head {
  max-width: 760px; margin: 0 auto 56px; text-align: center;
}
.about-section .sec-head h2 {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  margin: 14px 0 0;
}

/* Story */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2.4fr;
  gap: 64px;
  align-items: start;
}
.about-aside { position: sticky; top: 100px; }
.about-aside .eyebrow {
  font-size: 12px;
}
.about-body {
  font-size: 16px;
  color: var(--l-text);
  line-height: 1.7;
}
.about-body .about-lead {
  font-size: 19px;
  color: var(--l-text);
  font-weight: 500;
  line-height: 1.55;
  margin-bottom: 22px;
}
.about-body p {
  margin-bottom: 18px;
  color: var(--soft);
}
.about-body p:last-child { margin-bottom: 0; }

/* What makes us different */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.diff-item {
  padding: 30px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: border-color 0.25s, transform 0.25s;
}
.s-paper .diff-item { background: #fff; }
.diff-item:hover {
  border-color: var(--cobalt);
  transform: translateY(-2px);
}
.diff-item .diff-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--cobalt);
  letter-spacing: 0.14em; margin-bottom: 14px;
}
.diff-item h3 {
  font-size: 18px; margin-bottom: 12px;
  color: var(--l-text);
}
.diff-item p {
  font-size: 14.5px; color: var(--soft); line-height: 1.6;
}

/* Expertise */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.exp-item {
  background: var(--paper);
  padding: 26px 24px;
  transition: background 0.25s;
}
.s-white .exp-item { background: var(--paper); }
.exp-item:hover { background: #fff; }
.exp-item h4 {
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px; font-weight: 700;
  color: var(--l-text); margin-bottom: 8px;
}
.exp-item p {
  font-size: 13.5px; color: var(--soft); line-height: 1.55;
}

/* Values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.value {
  padding: 26px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--d-line);
  border-radius: var(--r-md);
  text-align: center;
}
.value .v-name {
  font-family: 'Inter Tight', sans-serif;
  font-size: 16px; font-weight: 700;
  color: #fff; margin-bottom: 10px;
}
.value p {
  font-size: 13.5px; color: var(--d-soft); line-height: 1.55;
}

/* Certifications */
.cert-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: center;
}
.cert-wrap h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.3rem); margin: 12px 0 12px;
}
.cert-lede { font-size: 15.5px; color: var(--soft); max-width: 460px; }
.cert-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.cert {
  padding: 16px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-family: 'Inter Tight', sans-serif;
  font-size: 14.5px; font-weight: 600;
  color: var(--l-text);
  display: flex; align-items: center; gap: 12px;
}
.cert::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--cobalt); flex-shrink: 0;
}

/* Careers */
.careers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.careers-grid h2 { font-size: clamp(1.9rem, 3vw, 2.4rem); margin: 12px 0 12px; }
.roles {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 28px;
}
.role-h {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mute); margin-bottom: 14px;
}
.role-list {
  list-style: none; display: grid; gap: 8px;
  padding-bottom: 22px; border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}
.role-list li {
  font-size: 14.5px; color: var(--l-text);
  padding-left: 20px; position: relative;
}
.role-list li::before {
  content: '→'; position: absolute; left: 0;
  color: var(--cobalt); font-weight: 700;
}
.careers-cta {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.careers-note {
  font-size: 12.5px; color: var(--mute);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 1080px) {
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-aside { position: static; }
  .diff-grid { grid-template-columns: 1fr; }
  .cert-wrap { grid-template-columns: 1fr; gap: 28px; }
  .careers-grid { grid-template-columns: 1fr; gap: 32px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .about-section { padding: 60px 0; }
  .expertise-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .cert-list { grid-template-columns: 1fr; }
}