/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

.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;
}

/* ============================================================
   SCROLL REVEAL — for all sections
   ============================================================ */
[data-scroll-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-scroll-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
[data-scroll-reveal].revealed .stagger-child {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-scroll-reveal].revealed .stagger-child.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── Wide container ── */
.container--wide {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
.section {
  padding: 100px 0;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
}

@media (max-width: 540px) {
  .section {
    padding: 48px 0;
  }
}

.section--dark {
  background: var(--color-surface);
}

.section--darker {
  background: var(--color-surface-2);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section__label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.6;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1rem;
  color: var(--color-text-2);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 56px;
}

.section__header {
  margin-bottom: 56px;
}

.section__header--center {
  text-align: center;
}

.section__header--center .section__label {
  justify-content: center;
}

.section__header--center .section__subtitle {
  margin: 0 auto 56px;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.page-hero {
  padding: calc(var(--nav-height) + 80px) 24px 80px;
  text-align: center;
}

.page-hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.page-hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 20px;
}

.page-hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-2);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .page-hero {
    padding: calc(var(--nav-height) + 48px) 20px 48px;
  }

  .page-hero__title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .page-hero__subtitle {
    font-size: 0.95rem;
  }
}

@media (max-width: 540px) {
  .page-hero {
    padding: calc(var(--nav-height) + 32px) 16px 32px;
  }

  .page-hero__label {
    font-size: 0.65rem;
    margin-bottom: 14px;
  }

  .page-hero__title {
    font-size: clamp(1.75rem, 7vw, 2.4rem);
    margin-bottom: 14px;
  }

  .page-hero__subtitle {
    font-size: 0.88rem;
    line-height: 1.6;
  }
}

/* Timeline */
/* Old timeline styles replaced by ab-timeline */

/* ============================================================
   OLD ABOUT PAGE STYLES (kept for backward compatibility)
   ============================================================ */

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .footer__content {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer__content > div:last-child {
    grid-column: 1 / -1;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__philosophy {
    padding-right: 0;
  }

  .about__intro {
    padding: 60px 20px 40px;
  }

  .about__grid-wrap {
    padding: 0 20px 60px;
  }

  .about__identity-card {
    padding: 28px 24px;
  }

  .about__stats-bar {
    padding: 0 20px 80px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about__statement {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  .about__grid-wrap {
    padding: 0 16px 48px;
  }

  .about__philosophy-title {
    font-size: 0.68rem;
  }

  .about__philosophy-text {
    font-size: 0.9rem;
  }

  .about__identity-card {
    padding: 24px 20px;
  }

  .about__identity-role {
    font-size: 0.95rem;
  }

  .about__stats-bar {
    padding: 0 16px 60px;
  }

  .about__stats-inner {
    flex-wrap: wrap;
  }

  .about__stat {
    flex: 1 1 45%;
    padding: 28px 16px;
  }

  .about__stat-divider {
    display: none;
  }

  .about__stat-num {
    font-size: clamp(1.8rem, 5vw, 2.4rem);
  }

  .about__stat-label {
    font-size: 0.72rem;
  }
}

@media (max-width: 768px) {
  .footer__content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__hero {
    padding: 40px 0 36px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .marquee-section {
    padding: 80px 0 60px;
  }

  .marquee-section__header {
    padding: 0 20px;
    margin-bottom: 32px;
  }

  .marquee__track .pj-card {
    flex: 0 0 280px;
  }

  .marquee__track .pj-card__body {
    padding: 20px;
  }

  .marquee__track .pj-card__title {
    font-size: 1rem;
  }

  .marquee-section__footer {
    flex-direction: column;
    gap: 16px;
    padding: 32px 20px 0;
  }

  .hero {
    cursor: auto;
    padding: var(--nav-height) 20px 20px;
  }

  .hero__smoke {
    display: none;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .hero__left {
    align-items: center;
    order: 2;
  }

  .hero__left-content {
    align-items: center;
  }

  .hero__right {
    align-items: center;
    order: 1;
  }

  .hero__name-outline,
  .hero__name-fill,
  .hero__name-sr {
    font-size: clamp(3rem, 12vw, 5.5rem);
  }

  .hero__accent-line {
    margin: 20px auto 0;
    transform: rotate(0deg);
  }

  .hero__image-wrap {
    width: 200px;
    height: 200px;
  }

  .hero__year {
    display: none;
  }

  .hero__counter {
    display: none;
  }

  .hero__subtitle {
    font-size: clamp(0.85rem, 3vw, 1rem);
  }

  .hero__grain {
    display: none;
  }
}

@media (max-width: 540px) {
  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__name-outline,
  .hero__name-fill,
  .hero__name-sr {
    font-size: clamp(2.5rem, 14vw, 4rem);
    line-height: 0.85;
  }

  .hero__name-outline {
    -webkit-text-stroke-width: 1px;
  }

  .hero__image-wrap {
    width: 160px;
    height: 160px;
  }

  .hero__ring {
    display: none;
  }

  .about__intro {
    padding: 48px 16px 32px;
  }

  .about__statement {
    font-size: clamp(1.4rem, 5.5vw, 1.8rem);
  }

  .about__grid-wrap {
    padding: 0 16px 40px;
  }

  .about__identity-card {
    padding: 20px 16px;
  }

  .about__identity-role {
    font-size: 0.88rem;
    margin-bottom: 14px;
  }

  .about__identity-sep {
    width: 28px;
    margin-bottom: 14px;
  }

  .about__tech-tag {
    font-size: 0.66rem;
    padding: 4px 10px;
  }

  .about__stats-bar {
    padding: 0 16px 60px;
  }

  .about__stat {
    flex: 1 1 100%;
    padding: 20px 16px;
  }

  .about__stat-num {
    font-size: 1.8rem;
  }

  .skills-showcase {
    grid-template-columns: 1fr;
  }
}