/* ============================================================
   ABOUT PAGE — STYLES
   ============================================================ */

.ab-page {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}

/* ── Page header ── */
.ab-page-header {
  padding: calc(var(--header-h) + var(--space-24)) var(--page-pad) var(--section-gap);
}
.ab-page-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}
.ab-page-header__label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-on-dark-40);
  margin-bottom: var(--space-4);
}
.ab-page-header__title {
  font-family: var(--font-hero);
  font-size: clamp(2.5rem, 2rem + 3vw, 4rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  color: var(--text-on-dark);
}
.ab-page-header__subtitle {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-on-dark-40);
  margin-top: var(--space-3);
}
.ab-page-header__statement {
  font-family: var(--font-hero);
  font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
  font-weight: 500;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
  color: var(--text-warm);
  max-width: 24ch;
  margin-top: var(--space-12);
}
.ab-page-header__bio {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--text-on-dark-60);
  max-width: 48ch;
  margin-top: var(--space-5);
}

/* TOC links */
.ab-page-header__toc {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}
.ab-page-header__toc-link {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-on-dark-40);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-page-header__toc-link:hover {
    color: var(--text-on-dark);
  }
}
.ab-page-header__toc-sep {
  color: var(--text-on-dark-20);
  user-select: none;
}

@media (max-width: 640px) {
  .ab-page-header {
    padding-top: calc(var(--header-h) + var(--space-16));
  }
  .ab-page-header__statement {
    max-width: none;
  }
  .ab-page-header__toc {
    gap: var(--space-4);
  }
}

/* ── Section ── */
.ab-section {
  padding: var(--section-gap) var(--page-pad);
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
}
.ab-section__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}
.ab-section__label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.ab-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-regular);
  line-height: var(--leading-snug);
  color: var(--text-on-dark);
  margin-bottom: var(--block-gap);
}


/* ── Experience timeline ── */
.ab-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}
.ab-job {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-10);
}
.ab-job__side {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-1);
}
.ab-job__company {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-on-dark);
  line-height: var(--leading-snug);
}
.ab-job__role {
  font-size: var(--text-base);
  color: var(--text-on-dark-60);
}
.ab-job__period {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-on-dark-40);
  letter-spacing: var(--tracking-wide);
}
.ab-job__context {
  font-size: var(--text-base);
  color: var(--text-on-dark-40);
  font-style: italic;
  margin-top: var(--space-1);
}
.ab-job__main {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.ab-job__achievements {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.ab-job__achievements li {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-on-dark-60);
  padding-left: var(--space-6);
  position: relative;
}
.ab-job__achievements li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 1px;
  background: var(--text-on-dark-20);
}
.ab-job__achievements strong {
  color: var(--text-on-dark);
  font-weight: var(--weight-semibold);
}

/* Highlight metric */
.ab-metric {
  font-family: var(--font-sans);
  color: var(--text-on-dark);
  font-weight: var(--weight-bold);
}

/* Case cross-link */
.ab-case-link {
  color: var(--text-on-dark-60);
  text-decoration: none;
  border-bottom: 1px solid var(--text-on-dark-20);
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-case-link:hover {
    color: var(--text-on-dark);
    border-color: var(--text-on-dark-40);
  }
}

.ab-job__divider {
  width: 100%;
  height: 1px;
  background: var(--border-dark);
  margin-left: calc(240px + var(--space-10));
  width: auto;
}

/* Micro-CTA */
.ab-micro-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-dark);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}
.ab-micro-cta__text {
  font-size: var(--text-base);
  color: var(--text-on-dark-40);
}
.ab-micro-cta__link {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-on-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--text-on-dark-20);
  transition: border-color var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-micro-cta__link:hover {
    border-color: var(--text-on-dark);
  }
}

@media (max-width: 960px) {
  .ab-job {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .ab-job__side {
    border-left: 2px solid var(--accent);
    padding-left: var(--space-4);
  }
  .ab-job__divider {
    margin-left: 0;
    width: 100%;
  }
}

/* ── Skills grid ── */
.ab-skills {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.ab-skill-group {
  padding: var(--space-6);
  background: var(--bg-dark-raised);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.ab-skill-group__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--text-on-dark);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.ab-skill-group__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.ab-skill-tag {
  font-size: var(--text-sm);
  color: var(--text-on-dark-60);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

@media (max-width: 960px) {
  .ab-skills { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .ab-skills { grid-template-columns: 1fr; }
}

/* ── Certificates ── */
.ab-talks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.ab-talk {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  background: var(--bg-dark-raised);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.ab-talk--zoomable {
  cursor: zoom-in;
}
@media (hover: hover) {
  .ab-talk--zoomable:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
  }
}
.ab-talk__img-wrap {
  position: relative;
  overflow: hidden;
}
.ab-talk__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}
.ab-talk__zoom-hint {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-talk--zoomable:hover .ab-talk__zoom-hint {
    opacity: 1;
  }
}
.ab-talk__zoom-hint svg {
  width: 16px;
  height: 16px;
  stroke: var(--text-on-dark);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}
.ab-talk__body {
  padding: 0 var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.ab-talk__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--text-on-dark);
  line-height: var(--leading-snug);
}
.ab-talk__meta {
  font-size: var(--text-sm);
  color: var(--text-on-dark-40);
}

/* Subsection divider */
.ab-subsection-divider {
  width: 100%;
  height: 1px;
  background: var(--border-dark);
  margin: var(--block-gap) 0;
}

@media (max-width: 960px) {
  .ab-talks { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .ab-talks { grid-template-columns: 1fr; }
  .ab-talk__zoom-hint { opacity: 0.4; }
}

/* ── Education ── */
.ab-edu {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-10);
}
.ab-edu__year {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-on-dark-40);
  letter-spacing: var(--tracking-wide);
  padding-top: var(--space-1);
}
.ab-edu__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.ab-edu__school {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--text-on-dark);
  line-height: var(--leading-snug);
}
.ab-edu__degree {
  font-size: var(--text-lg);
  color: var(--text-on-dark-60);
}

@media (max-width: 960px) {
  .ab-edu {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

/* ── Photos ── */
.ab-photos {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-6);
}
.ab-photo {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.ab-photo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  transition: transform var(--dur-slow) var(--ease-out);
}
@media (hover: hover) {
  .ab-photo:hover img {
    transform: scale(1.03);
  }
}
.ab-photo__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(11,11,15,0.85) 0%, rgba(11,11,15,0.3) 40%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  gap: var(--space-2);
}
.ab-photo__tag {
  align-self: flex-start;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-on-dark);
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255,255,255,0.08);
}
.ab-photo__caption {
  font-size: var(--text-base);
  color: var(--text-on-dark);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
}
.ab-photo__sub {
  font-size: var(--text-sm);
  color: var(--text-on-dark-60);
  line-height: var(--leading-base);
}

@media (max-width: 640px) {
  .ab-photos { grid-template-columns: 1fr; }
}

/* ── Cases CTA ── */
.ab-cases-cta {
  padding-top: 0;
  padding-bottom: var(--section-gap);
}
.ab-cases-cta__link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--text-on-dark-40);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-cases-cta__link:hover {
    color: var(--text-on-dark);
  }
}

/* ── Footer wrapper ── */
.ab-footer-section {
  margin-top: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: stretch;
}
.ab-footer-section .p-footer {
  min-height: 100%;
}
.ab-footer-section .p-footer__bottom {
  padding-bottom: max(var(--space-4), env(safe-area-inset-bottom, 0px));
}

/* ── Lightbox ── */
.ab-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out);
}
.ab-lightbox--open {
  opacity: 1;
  pointer-events: auto;
}
.ab-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  transform: scale(0.95);
  transition: transform var(--dur-base) var(--ease-out);
}
.ab-lightbox--open img {
  transform: scale(1);
}
.ab-lightbox__close {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 10000;
  width: 44px;
  height: 44px;
  border: none;
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
  transition: opacity var(--dur-fast) var(--ease-out);
}
@media (hover: hover) {
  .ab-lightbox__close:hover { opacity: 1; }
}