/* ==============================================
   ABOUT / PORTFOLIO — Vercel design language
   Mirrors css/style.css: ink, hairline, mono labels.
   ============================================== */

/* ── Theme transition ── */
body,
.pf-hero,
.pf-stat,
.pf-exp-card,
.pf-project-card,
.pf-cred-card,
.pf-skill-row,
.pf-achieve-card {
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ── Hero ── */
.pf-hero {
  padding: calc(var(--nav-h) + 72px) 0 56px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.pf-hero-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: start;
  position: relative;
}

/* ── Avatar ── */
.pf-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.pf-avatar {
  width: 76px;
  height: 76px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.pf-status-dot {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 11px;
  height: 11px;
  background: var(--green);
  border-radius: 50%;
  border: 2px solid var(--bg-card);
  animation: pulse-dot 2.8s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 40%, transparent);
  }

  50% {
    box-shadow: 0 0 0 5px transparent;
  }
}

/* ── Hero text ── */
.pf-hero-text {
  min-width: 0;
}

.pf-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pf-name {
  font-family: var(--font-body);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.pf-name .accent {
  color: var(--text-primary);
}

.pf-bio {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  letter-spacing: -0.01em;
  max-width: 620px;
  margin-bottom: 24px;
}

/* ── Profile links ── */
.pf-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.pf-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: var(--t);
  letter-spacing: -0.01em;
}

.pf-link:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-surface);
}

.pf-link--badge {
  color: var(--text-inverse);
  background: var(--text-primary);
  border-color: var(--text-primary);
}

.pf-link--badge:hover {
  color: var(--text-inverse);
  background: var(--text-primary);
  opacity: 0.86;
}

/* ── Stats ── */
.pf-stats-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  max-width: 520px;
}

.pf-stat {
  flex: 1;
  padding: 16px 20px;
  border-right: 1px solid var(--border);
}

.pf-stat:last-child {
  border-right: none;
}

.pf-stat:hover {
  background: var(--bg-surface);
}

.pf-stat-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.pf-stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

/* ── Body ── */
.pf-body {
  padding-top: 0;
  padding-bottom: 96px;
}

.pf-section {
  padding: 64px 0;
}

.pf-section-header {
  margin-bottom: 32px;
}

.pf-section-header .section-title {
  margin-bottom: 0;
}

.pf-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ── Section label ── */
.pf-label-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.pf-label-bar .section-eyebrow {
  margin-bottom: 0;
}

.pf-label-bar::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Experience ── */
.pf-exp-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--t);
  position: relative;
  overflow: hidden;
}

.pf-exp-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.pf-exp-icon-wrap,
.pf-project-icon-wrap,
.pf-skill-cat-icon,
.pf-cred-icon-wrap,
.pf-achieve-icon-wrap {
  width: 40px;
  height: 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  filter: grayscale(1);
}

.pf-exp-body {
  flex: 1;
  min-width: 0;
}

.pf-exp-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.pf-exp-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
  letter-spacing: -0.02em;
}

.pf-exp-org {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ── Date pill ── */
.pf-date-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 400;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
  white-space: nowrap;
}

.pf-date-pill--sm {
  font-size: 10px;
  padding: 2px 6px;
}

/* ── Bullets ── */
.pf-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pf-bullets li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  padding-left: 18px;
  position: relative;
}

.pf-bullets li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
}

/* ── Projects ── */
.pf-projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.pf-project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: var(--t);
}

.pf-project-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.pf-project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.pf-project-header-left {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  flex: 1;
}

.pf-project-title-block {
  min-width: 0;
}

.project-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.35;
  transition: color 0.15s ease;
}

.pf-project-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.project-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.project-links {
  display: flex;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--t);
}

.project-link:hover {
  color: var(--link);
}

/* ── Skills table ── */
.pf-skills-table {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pf-skill-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: center;
  gap: 24px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  transition: background 0.15s ease;
}

.pf-skill-row:last-child {
  border-bottom: none;
}

.pf-skill-row:hover {
  background: var(--bg-surface);
}

.pf-skill-cat {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pf-skill-cat-icon {
  width: 28px;
  height: 28px;
  font-size: 0.85rem;
  border-radius: 4px;
}

.pf-skill-cat-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  word-break: break-word;
}

/* ── Credentials ── */
.pf-creds-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.pf-cred-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--t);
}

.pf-cred-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.pf-cred-body {
  flex: 1;
  min-width: 0;
}

.pf-cred-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  margin-bottom: 8px;
}

.pf-cred-badge--cert {
  color: var(--text-primary);
  background: var(--bg-surface);
  border-color: var(--border-strong);
}

.pf-cred-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
  line-height: 1.35;
  letter-spacing: -0.02em;
  word-break: break-word;
}

.pf-cred-org {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.pf-cred-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin: 4px 0 10px;
}

.pf-cred-detail {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Achievements ── */
.pf-achievements {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pf-achieve-card {
  display: flex;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--t);
}

.pf-achieve-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.pf-achieve-icon-wrap {
  width: 40px;
  height: 40px;
  font-size: 1.15rem;
}

.pf-achieve-body {
  flex: 1;
  min-width: 0;
}

.pf-achieve-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.pf-achieve-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .pf-creds-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .pf-hero-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pf-avatar-wrap {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  .pf-stats-row {
    max-width: 100%;
  }

  .pf-skill-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 14px 16px;
  }
}

@media (max-width: 640px) {
  .pf-hero {
    padding-top: calc(var(--nav-h) + 48px);
    padding-bottom: 40px;
  }

  .pf-creds-grid {
    grid-template-columns: 1fr;
  }

  .pf-stats-row {
    flex-wrap: wrap;
  }

  .pf-stat {
    flex: 1 1 calc(50% - 1px);
    min-width: 0;
  }

  .pf-exp-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .pf-exp-top {
    flex-direction: column;
    gap: 8px;
  }

  .pf-achieve-card {
    gap: 14px;
  }

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

  .pf-section {
    padding: 40px 0;
  }

  .pf-bio {
    font-size: 15px;
  }
}

@media (max-width: 360px) {
  .pf-stats-row {
    flex-direction: column;
  }

  .pf-stat {
    flex: none;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .pf-stat:last-child {
    border-bottom: none;
  }

  .pf-cred-card,
  .pf-achieve-card {
    flex-direction: column;
    gap: 12px;
  }
}