/* ============================================================
   ABOUT — editorial layout (12-col grid, hairline structure)
   ============================================================ */

/* ---------- Profile ---------- */
.profile-section .pf-head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(16px, 2vw, 28px);
  margin-bottom: clamp(40px, 6vw, 88px);
}
.profile-section .pf-head .eyebrow { grid-column: 1 / 4; align-self: start; margin: 1.1em 0 0; }
.profile-section .pf-head h2 {
  grid-column: 4 / 13;
  font-size: clamp(2rem, 1.15rem + 3.5vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 500;
}

.profile-section .pf-body {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(16px, 2vw, 28px);
  align-items: start;
}
.pf-copy { grid-column: 4 / 9; }
.pf-copy .lead {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.1rem, 0.98rem + 0.6vw, 1.45rem);
  line-height: 1.38;
  letter-spacing: -0.028em;
  color: rgba(255, 255, 255, 0.94);
  margin-bottom: clamp(20px, 2.4vw, 32px);
}
.pf-copy p:not(.lead) { max-width: 54ch; }
.pf-copy .actions { display: flex; align-items: center; gap: 18px; margin-top: clamp(28px, 3.4vw, 44px); flex-wrap: wrap; }

.pf-facts { grid-column: 10 / 13; align-self: start; }

/* ---------- Stats: hairline columns, large numerals ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(64px, 9vw, 130px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-row .card { padding: clamp(24px, 3vw, 40px) clamp(16px, 2vw, 32px); }
.stat-row .card + .card { border-left: 1px solid var(--border); }
.stat-row .card:first-child { padding-left: 0; }
.stat-row b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 1.2rem + 3vw, 3.8rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  margin-bottom: 14px;
}
.stat-row span { font-size: var(--fs-label); color: var(--dim); text-transform: uppercase; letter-spacing: 0.12em; }

/* ---------- Section heads on this page ---------- */
.section-head h2 { font-size: clamp(1.9rem, 1.1rem + 2.8vw, 3.4rem); line-height: 1.03; letter-spacing: -0.04em; font-weight: 500; }

/* ---------- Timeline ---------- */
.timeline { position: relative; border-bottom: 1px solid var(--border); }
.timeline-item {
  display: grid;
  grid-template-columns: minmax(150px, 22%) minmax(0, 1fr);
  column-gap: clamp(20px, 3vw, 48px);
  padding: clamp(26px, 3vw, 44px) 0;
  border-top: 1px solid var(--border);
  position: relative;
  transition: background 0.4s;
}
.timeline-item .dot { display: none; }
.timeline-item .year {
  font-family: var(--font-display);
  color: var(--dim);
  font-weight: 500;
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-top: 0.55em;
  font-variant-numeric: tabular-nums;
  transition: color 0.3s;
}
.timeline-item:first-child .year { color: var(--primary); }
.timeline-item:hover .year { color: var(--primary); }
.timeline-item .body h3 { font-size: clamp(1.2rem, 1rem + 0.8vw, 1.7rem); letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 10px; }
.timeline-item .body .place { font-size: var(--fs-label); color: var(--dim); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 16px; display: block; }
.timeline-item .body p { max-width: 62ch; margin: 0; }
.timeline-item .body .resp-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 36px; margin-top: 26px; max-width: 760px; }
.timeline-item .body .resp-list li { display: flex; align-items: flex-start; gap: 12px; font-size: var(--fs-small); color: var(--muted); padding: 11px 0; border-top: 1px solid var(--border); }
.timeline-item .body .resp-list li i { color: var(--primary); font-size: 0.7rem; margin-top: 0.45em; flex-shrink: 0; }

/* ---------- Skills ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 clamp(32px, 6vw, 96px); }
.skill-row { padding: 22px 0; border-top: 1px solid var(--border); }
.skill-row:last-child { border-bottom: 1px solid var(--border); }
.skill-row .top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.skill-row .top b { font-family: var(--font-display); font-weight: 500; font-size: clamp(1rem, 0.95rem + 0.3vw, 1.2rem); letter-spacing: -0.02em; color: var(--white); }
.skill-row .top span { font-size: var(--fs-small); color: var(--dim); font-variant-numeric: tabular-nums; }
.skill-bar { height: 2px; background: var(--border); overflow: hidden; }
.skill-bar i { display: block; height: 100%; background: var(--primary); width: var(--level, 0%); transform-origin: left; transform: scaleX(0); transition: transform 1.4s var(--ease); }
.skill-bar.in-view i { transform: scaleX(1); }

/* ---------- Tools: hairline cells, no cards ---------- */
.tools-grid { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--border); border-left: 1px solid var(--border); }
.tool-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 40px;
  min-height: clamp(130px, 14vw, 190px);
  padding: clamp(16px, 2vw, 26px);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.4s var(--ease);
}
.tool-card img { width: 30px; height: 30px; object-fit: contain; }
.tool-card i { font-size: 1.6rem; color: var(--white); display: block; transition: color 0.3s; }
.tool-card span { font-family: var(--font-display); font-size: clamp(0.95rem, 0.9rem + 0.3vw, 1.15rem); letter-spacing: -0.015em; color: var(--muted); transition: color 0.3s; }
@media (hover: hover) {
  .tool-card:hover { background: var(--surface); }
  .tool-card:hover i { color: var(--primary); }
  .tool-card:hover span { color: var(--white); }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .profile-section .pf-head .eyebrow { grid-column: 1 / -1; margin: 0 0 18px; }
  .profile-section .pf-head h2 { grid-column: 1 / -1; }
  .pf-copy { grid-column: 1 / 8; }
  .pf-facts { grid-column: 9 / 13; }
  .tools-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 760px) {
  .profile-section .pf-body { grid-template-columns: 1fr; row-gap: 40px; }
  .pf-copy, .pf-facts { grid-column: 1 / -1; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .stat-row .card:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat-row .card:nth-child(n + 3) { border-top: 1px solid var(--border); }
  .skills-grid { grid-template-columns: 1fr; }
  .skills-grid > div + div .skill-row:first-child { border-top: 0; }
  .timeline-item { grid-template-columns: 1fr; row-gap: 8px; }
  .timeline-item .year { padding-top: 0; }
  .timeline-item .body .resp-list { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}