/* ══════════════════════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════════════════════ */
#about { border-top: 1px solid var(--c2); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: start;
}

/* left col: photo + text stacked */
.about-left {}

/* profile photo in about section */
.about-photo {
  width: 100%;
  max-width: 340px;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--c3);
  margin-bottom: 36px;
}

.about-text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--off-white);
  margin-bottom: 24px;
}
.about-text p:last-child { margin-bottom: 0; }

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.skill-tag {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border: 1px solid var(--c3);
  color: var(--muted);
  transition: all 0.2s ease;
}
.skill-tag:hover { border-color: var(--white); color: var(--white); }

/* right col: stats */
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  align-content: start;
}
.stat-card {
  background: var(--c1);
  padding: 32px 28px;
  border: 1px solid var(--c2);
  transition: border-color 0.3s ease;
}
.stat-card:hover { border-color: var(--c4); }
.stat-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 400;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }


/* ══════════════════════════════════════════════════════════════
   EXPERIENCE / TIMELINE
══════════════════════════════════════════════════════════════ */
#experience { background: var(--c1); border-top: 1px solid var(--c2); max-width: none; }

.timeline { position: relative; max-width: 1300px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 1px;
  background: var(--c3);
}

.timeline-item {
  position: relative;
  padding: 0 0 80px 60px;
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 48px;
  align-items: start;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.timeline-item.visible { opacity: 1; transform: translateY(0); }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -5px; top: 8px;
  width: 11px; height: 11px;
  border: 1px solid var(--white);
  background: var(--c0);
  border-radius: 50%;
}

.timeline-meta { padding-top: 4px; }
.timeline-date {
  font-size: 11px; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 8px;
}
.timeline-company {
  font-family: var(--font-display);
  font-size: 13px; font-weight: 00;
  letter-spacing: 0.03em; color: var(--muted);
}

.timeline-role {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 400;
  margin-bottom: 16px;
  line-height: 1.15;
}
.timeline-role-badge {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--muted);
  letter-spacing: 0.08em;
  margin-left: 8px;
}
.timeline-desc {
  font-size: 14px; color: var(--off-white);
  line-height: 1.85; max-width: 560px;
}
.timeline-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.timeline-tag {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 12px; border: 1px solid var(--c4); color: var(--muted);
}

/* logo square */
.timeline-logo {
  width: 64px; height: 64px;
  border-radius: 14px;
  border: 1px solid var(--c3);
  background: var(--c2);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.3s ease;
}
.timeline-item:hover .timeline-logo { border-color: var(--c4); }
.timeline-logo img {
  width: 100%; height: 100%;
  object-fit: contain;
  transition: filter 0.3s ease;
}
.timeline-item:hover .timeline-logo img { filter: grayscale(0%) brightness(1); }
.timeline-logo-placeholder {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 400;
  color: var(--c4); letter-spacing: 0.05em;
}


/* ══════════════════════════════════════════════════════════════
   PROJECTS
══════════════════════════════════════════════════════════════ */
#projects { border-top: 1px solid var(--c2); }

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }

.project-card {
  background: var(--c1);
  border: 1px solid var(--c2);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s ease;
  margin-right: 5px;
  margin-left: 5px;
  margin-bottom: 5px;
  margin-top: 5px;
}
.project-card.visible { opacity: 1; transform: translateY(0); }
.project-card:hover  { border-color: var(--c4); }

.project-img-wrap {
  width: 100%; aspect-ratio: 16/9;
  overflow: hidden; background: var(--c2);
}
.project-img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c3);
}
.project-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease; filter: grayscale(30%);
}
.project-card:hover .project-img-wrap img { transform: scale(1.04); filter: grayscale(0%); }

.project-info { padding: 28px 28px 32px; }
.project-num  { font-size: 10px; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 10px; }
.project-title {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 400;
  margin-bottom: 12px; line-height: 1.2;
}
.project-desc { font-size: 13px; color: var(--muted); line-height: 1.7; margin-bottom: 20px; }
.project-links { display: flex; gap: 16px; }
.project-link {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  border-bottom: 1px solid var(--c3); padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.project-link:hover { color: var(--white); border-color: var(--white); }


/* ══════════════════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════════════════ */
#contact { border-top: 1px solid var(--c2); }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: start;
}

.contact-left {}

/* small square photo in contact area */
.contact-photo {
  width: 100px; height: 100px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--c3);
  margin-bottom: 28px;
  flex-shrink: 0;
}

.contact-intro {
  font-size: 15px; color: var(--muted);
  line-height: 1.9; max-width: 440px; margin-bottom: 36px;
}

.availability-badge {
  display: inline-flex;
  align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--off-white); border: 1px solid var(--c3); padding: 10px 18px;
}
.badge-dot {
  width: 6px; height: 6px;
  background: #de0000; border-radius: 50%;
}

/* contact buttons */
.contact-buttons { display: flex; flex-direction: column; gap: 12px; }
.contact-btn {
  display: flex; align-items: center; gap: 18px;
  padding: 20px 24px;
  border: 1px solid var(--c2); background: var(--c1);
  text-decoration: none; color: var(--white);
  transition: border-color 0.25s ease, background 0.25s ease;
}
.contact-btn:hover { border-color: var(--white); background: var(--c2); }
.contact-btn-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--c3); border-radius: 8px; flex-shrink: 0;
}
.contact-btn-icon svg { width: 18px; height: 18px; fill: var(--white); }
.contact-btn-label {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 2px;
}
.contact-btn-val {
  font-family: var(--font-display);
  font-size: 15px; font-weight: 400;
}


/* ══════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--c2);
  padding: 40px 60px;
  display: flex; align-items: center; justify-content: space-between;
}
footer p { font-size: 11px; letter-spacing: 0.1em; color: var(--c4); }
.footer-links { display: flex; gap: 32px; }
.footer-links a {
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c4); text-decoration: none; transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }


/* ══════════════════════════════════════════════════════════════
   GLOBAL RESPONSIVE
══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 80px 28px; }
  .section-inner { padding: 80px 28px; }
  .section-title { margin-bottom: 40px; }

  /* about */
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-photo { max-width: 100%; aspect-ratio: 16/9; }

  /* timeline */
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-left: 36px;
    padding-bottom: 56px;
  }
  .timeline-logo { display: none; }

  /* projects */
  .projects-grid { grid-template-columns: 1fr; }

  /* contact */
  .contact-layout { grid-template-columns: 1fr; gap: 56px; }

  /* footer */
  footer { flex-direction: column; gap: 20px; text-align: center; padding: 40px 28px; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 20px; }
}

@media (max-width: 480px) {
  .about-stats { grid-template-columns: 1fr 1fr; }
  .hero-cta { flex-direction: column; }
  .btn { text-align: center; }
}