/* portfolio styles — sithuaung.me
   last touched: 2026-05
*/

/* tokens — keep these in sync with the design system */
  :root {
    --bg:           #0b0b0d;
    --bg-2:         #111114;
    --surface:      rgba(255,255,255,0.04);
    --surface-2:    rgba(255,255,255,0.06);
    --border:       rgba(255,255,255,0.08);
    --border-2:     rgba(255,255,255,0.14);
    --text:         #f4f4f5;
    --text-2:       #b8b8be;
    --text-3:       #7a7a82;
    --accent:       #e8b059;     /* warm amber/gold */
    --accent-2:     #f5d28d;
    --accent-soft:  rgba(232,176,89,0.12);
    --danger:       #ff6b6b;

    --font-display: 'Fraunces', 'Times New Roman', serif;
    --font-body:    'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono:    'JetBrains Mono', ui-monospace, monospace;

    --max:          1280px;
    --pad-x:        clamp(20px, 4vw, 56px);

    --ease-out:     cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in-out:  cubic-bezier(0.65, 0, 0.35, 1);
  }

  /* base reset */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

  /* bg atmosphere */
  .atmosphere {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
  }
  .atmosphere::before,
  .atmosphere::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.55;
  }
  .atmosphere::before {
    width: 620px; height: 620px;
    background: radial-gradient(circle, rgba(232,176,89,0.32), transparent 60%);
    top: -160px; right: -120px;
    animation: float-a 18s ease-in-out infinite;
  }
  .atmosphere::after {
    width: 540px; height: 540px;
    background: radial-gradient(circle, rgba(80,120,200,0.28), transparent 60%);
    bottom: -140px; left: -100px;
    animation: float-b 22s ease-in-out infinite;
  }
  .grain {
    position: fixed; inset: 0; z-index: 1; pointer-events: none;
    opacity: 0.05; mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  @keyframes float-a {
    0%, 100% { transform: translate(0,0) scale(1); }
    50%      { transform: translate(-40px, 30px) scale(1.1); }
  }
  @keyframes float-b {
    0%, 100% { transform: translate(0,0) scale(1); }
    50%      { transform: translate(50px, -30px) scale(1.08); }
  }

  /* navbar — sticky, frosted on scroll */
  .nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 18px var(--pad-x);
    transition: background 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out), border-color 0.4s var(--ease-out), padding 0.3s var(--ease-out);
    border-bottom: 1px solid transparent;
  }
  .nav.scrolled {
    background: rgba(11,11,13,0.78);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-bottom-color: var(--border);
    padding: 12px var(--pad-x);
  }
  .nav__inner {
    max-width: var(--max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
  }

  /* logo */
  .logo {
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 26px;
    letter-spacing: -0.02em;
    color: var(--text);
    line-height: 1;
  }
  .logo__dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    margin-left: 4px;
    align-self: end;
    margin-bottom: 6px;
    box-shadow: 0 0 14px var(--accent);
  }

  /* nav links */
  .nav__links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0; padding: 0;
  }
  .nav__link {
    position: relative;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-2);
    transition: color 0.25s var(--ease-out);
  }
  .nav__link::before {
    content: '';
    position: absolute;
    left: 16px; right: 16px;
    bottom: 6px;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease-out);
  }
  .nav__link:hover { color: var(--text); }
  .nav__link:hover::before { transform: scaleX(1); }
  .nav__link--num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    margin-right: 6px;
  }

  /* CTA */
  .nav__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--text);
    color: var(--bg);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), background 0.3s var(--ease-out);
  }
  .nav__cta:hover {
    transform: translateY(-1px);
    background: var(--accent);
    box-shadow: 0 10px 30px -10px var(--accent);
  }
  .nav__cta svg {
    width: 14px; height: 14px;
    transition: transform 0.3s var(--ease-out);
  }
  .nav__cta:hover svg { transform: translateX(3px); }

  /* hamburger */
  .nav__burger {
    display: none;
    width: 42px; height: 42px;
    align-items: center; justify-content: center;
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: background 0.25s var(--ease-out);
  }
  .nav__burger:hover { background: var(--surface); }
  .nav__burger span {
    display: block;
    width: 18px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    position: relative;
    transition: transform 0.35s var(--ease-out), opacity 0.2s var(--ease-out);
  }
  .nav__burger span::before,
  .nav__burger span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 18px; height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.35s var(--ease-out);
  }
  .nav__burger span::before { top: -6px; }
  .nav__burger span::after  { top:  6px; }

  body.menu-open .nav__burger span                  { background: transparent; }
  body.menu-open .nav__burger span::before          { transform: translateY(6px) rotate(45deg); }
  body.menu-open .nav__burger span::after           { transform: translateY(-6px) rotate(-45deg); }

  /* mobile menu sheet */
  .nav__mobile {
    position: fixed;
    inset: 0;
    background: rgba(11,11,13,0.96);
    backdrop-filter: blur(18px);
    z-index: 40;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 6px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease-out);
  }
  body.menu-open .nav__mobile {
    opacity: 1;
    pointer-events: auto;
  }
  .nav__mobile a {
    font-family: var(--font-display);
    font-size: clamp(28px, 8vw, 42px);
    font-weight: 400;
    letter-spacing: -0.02em;
    padding: 10px 24px;
    color: var(--text);
    transform: translateY(20px);
    opacity: 0;
    transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.25s;
  }
  .nav__mobile a:hover { color: var(--accent); }
  body.menu-open .nav__mobile a { opacity: 1; transform: translateY(0); }
  body.menu-open .nav__mobile a:nth-child(1) { transition-delay: 0.10s; }
  body.menu-open .nav__mobile a:nth-child(2) { transition-delay: 0.16s; }
  body.menu-open .nav__mobile a:nth-child(3) { transition-delay: 0.22s; }
  body.menu-open .nav__mobile a:nth-child(4) { transition-delay: 0.28s; }
  body.menu-open .nav__mobile a:nth-child(5) { transition-delay: 0.34s; }

  /* hero */
  .hero {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    padding: 140px var(--pad-x) 80px;
    display: flex;
    align-items: center;
  }
  .hero__inner {
    max-width: var(--max);
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: center;
  }

  /* eyebrow */
  .hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    border: 1px solid var(--border-2);
    border-radius: 999px;
    background: var(--surface);
    backdrop-filter: blur(8px);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-2);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 28px;
  }
  .hero__eyebrow::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
  }

  /* heading */
  .hero__title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(44px, 7vw, 92px);
    line-height: 1.02;
    letter-spacing: -0.035em;
    margin: 0 0 24px;
    color: var(--text);
  }
  .hero__title em {
    font-style: italic;
    font-weight: 300;
    color: var(--accent);
    position: relative;
    display: inline-block;
  }
  .hero__title em::after {
    content: '';
    position: absolute;
    left: 4px; right: 4px;
    bottom: 4px; height: 2px;
    background: var(--accent);
    opacity: 0.35;
    transform-origin: left;
    animation: line-in 1.4s var(--ease-out) 0.9s both;
  }
  @keyframes line-in {
    from { transform: scaleX(0); opacity: 0; }
    to   { transform: scaleX(1); opacity: 0.35; }
  }

  /* role line */
  .hero__role {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-3);
    letter-spacing: 0.04em;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }
  .hero__role span { color: var(--accent); }
  .hero__role .dot {
    width: 4px; height: 4px;
    background: var(--text-3);
    border-radius: 50%;
    flex-shrink: 0;
  }

  /* description */
  .hero__desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text-2);
    max-width: 520px;
    margin: 0 0 40px;
  }

  /* actions */
  .hero__actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 26px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s var(--ease-out);
    cursor: pointer;
    white-space: nowrap;
  }
  .btn--primary {
    background: var(--accent);
    color: #1a1208;
    box-shadow: 0 12px 30px -10px rgba(232,176,89,0.5);
  }
  .btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px -10px rgba(232,176,89,0.7);
    background: var(--accent-2);
  }
  .btn--ghost {
    border: 1px solid var(--border-2);
    color: var(--text);
  }
  .btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
  }
  .btn svg { width: 16px; height: 16px; transition: transform 0.3s; }
  .btn:hover svg { transform: translateX(3px); }

  /* metrics */
  .hero__metrics {
    display: flex;
    gap: clamp(20px, 4vw, 48px);
    border-top: 1px solid var(--border);
    padding-top: 28px;
  }
  .metric__num {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 400;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
  }
  .metric__num em {
    font-style: italic;
    color: var(--accent);
    font-weight: 300;
  }
  .metric__label {
    font-size: 12px;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  /* portrait */
  .portrait {
    position: relative;
    aspect-ratio: 4 / 5;
    max-width: 480px;
    margin-left: auto;
    width: 100%;
  }
  .portrait__frame {
    position: relative;
    width: 100%; height: 100%;
    border-radius: 28px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a20 0%, #0f0f12 100%);
    border: 1px solid var(--border);
    box-shadow:
      0 30px 80px -20px rgba(0,0,0,0.7),
      0 0 0 1px var(--border) inset;
  }
  .portrait__img {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center 20%;
    filter: contrast(1.05) saturate(0.95);
    transition: transform 0.8s var(--ease-out);
  }
  .portrait:hover .portrait__img { transform: scale(1.03); }

  /* gradient overlay on photo */
  .portrait__frame::after {
    content: '';
    position: absolute; inset: 0;
    background:
      linear-gradient(180deg, transparent 50%, rgba(11,11,13,0.55) 100%),
      radial-gradient(circle at 30% 20%, rgba(232,176,89,0.18), transparent 60%);
    pointer-events: none;
  }

  /* floating tags around portrait */
  .tag {
    position: absolute;
    padding: 10px 16px;
    background: rgba(20,20,24,0.85);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-2);
    border-radius: 14px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 12px 30px -8px rgba(0,0,0,0.6);
    animation: tag-float 6s ease-in-out infinite;
  }
  .tag svg { width: 14px; height: 14px; color: var(--accent); }
  .tag--1 { top: 8%;  left: -22px;  animation-delay: 0s; }
  .tag--2 { bottom: 22%; right: -28px; animation-delay: -2s; }
  .tag--3 { bottom: 6%; left: 14%; animation-delay: -4s; }
  @keyframes tag-float {
    0%,100% { transform: translateY(0); }
    50%     { transform: translateY(-10px); }
  }

  /* corner decoration */
  .portrait__corner {
    position: absolute;
    width: 36px; height: 36px;
    border: 1px solid var(--accent);
    pointer-events: none;
  }
  .portrait__corner--tl { top: -10px; left: -10px; border-right: 0; border-bottom: 0; }
  .portrait__corner--br { bottom: -10px; right: -10px; border-left: 0; border-top: 0; }

  /* scroll cue */
  .scroll-cue {
    position: absolute;
    bottom: 32px; left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column;
    align-items: center; gap: 10px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
  }
  .scroll-cue__line {
    width: 1px; height: 36px;
    background: linear-gradient(to bottom, var(--text-3), transparent);
    position: relative;
    overflow: hidden;
  }
  .scroll-cue__line::after {
    content: '';
    position: absolute;
    top: -10px; left: 0;
    width: 1px; height: 10px;
    background: var(--accent);
    animation: scroll-trail 2.2s var(--ease-out) infinite;
  }
  @keyframes scroll-trail {
    0%   { top: -10px; opacity: 0; }
    20%  { opacity: 1; }
    80%  { opacity: 1; }
    100% { top: 100%; opacity: 0; }
  }

  /* entrance anim */
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    animation: reveal 0.9s var(--ease-out) forwards;
  }
  .reveal--1 { animation-delay: 0.10s; }
  .reveal--2 { animation-delay: 0.22s; }
  .reveal--3 { animation-delay: 0.34s; }
  .reveal--4 { animation-delay: 0.46s; }
  .reveal--5 { animation-delay: 0.58s; }
  .reveal--6 { animation-delay: 0.70s; }
  .reveal--7 { animation-delay: 0.82s; }
  @keyframes reveal {
    to { opacity: 1; transform: translateY(0); }
  }

  /* shared section bits */
  .section {
    position: relative;
    z-index: 2;
    padding: clamp(80px, 12vw, 140px) var(--pad-x);
  }
  .section__inner {
    max-width: var(--max);
    margin: 0 auto;
  }
  .section__head {
    margin-bottom: clamp(48px, 7vw, 80px);
    max-width: 720px;
  }
  .section__kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 20px;
  }
  .section__kicker::before {
    content: '';
    width: 24px; height: 1px;
    background: var(--accent);
  }
  .section__title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(36px, 5.5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin: 0 0 18px;
    color: var(--text);
  }
  .section__title em {
    font-style: italic;
    font-weight: 300;
    color: var(--accent);
  }
  .section__sub {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.7;
    margin: 0;
    max-width: 600px;
  }

  /* reveal-on-scroll */
  .scroll-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  }
  .scroll-reveal.in {
    opacity: 1;
    transform: translateY(0);
  }
  .scroll-reveal.delay-1 { transition-delay: 0.10s; }
  .scroll-reveal.delay-2 { transition-delay: 0.20s; }
  .scroll-reveal.delay-3 { transition-delay: 0.30s; }
  .scroll-reveal.delay-4 { transition-delay: 0.40s; }

  /* about */
  #about {
    border-top: 1px solid var(--border);
  }
  .about__grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
  }

  /* bio narrative */
  .about__bio p {
    font-size: 17px;
    line-height: 1.75;
    color: var(--text-2);
    margin: 0 0 22px;
  }
  .about__bio p:first-child {
    font-size: 19px;
    color: var(--text);
    line-height: 1.6;
  }
  .about__bio p:first-child::first-letter {
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 400;
    line-height: 0.9;
    float: left;
    margin: 4px 12px 0 0;
    color: var(--accent);
  }
  .about__bio strong {
    color: var(--text);
    font-weight: 600;
  }

  /* expertise tag chips */
  .about__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
  }
  .chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: 0.01em;
    transition: all 0.3s var(--ease-out);
  }
  .chip:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-2px);
  }
  .chip svg { width: 12px; height: 12px; opacity: 0.7; }

  /* info card */
  .about__info {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px;
    backdrop-filter: blur(8px);
    position: sticky;
    top: 100px;
  }
  .info-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .info-row {
    display: grid;
    grid-template-columns: 36px 1fr;
    gap: 14px;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transition: padding 0.25s var(--ease-out);
  }
  .info-row:last-child { border-bottom: 0; }
  .info-row:hover { padding-left: 4px; }
  .info-icon {
    width: 36px; height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--accent);
    transition: all 0.25s var(--ease-out);
  }
  .info-row:hover .info-icon {
    background: var(--accent-soft);
    border-color: var(--accent);
  }
  .info-icon svg { width: 16px; height: 16px; }
  .info-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
  }
  .info-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .info-value {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .info-value a {
    color: var(--text);
    transition: color 0.2s;
  }
  .info-value a:hover { color: var(--accent); }

  /* social row inside info card */
  .about__info-social {
    display: flex;
    gap: 8px;
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
  }
  .social-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    transition: all 0.25s var(--ease-out);
  }
  .social-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-2px);
  }
  .social-btn svg { width: 14px; height: 14px; }

  /* resume + timeline */
  #resume {
    border-top: 1px solid var(--border);
  }

  /* layout: experience left, sidebar right (education + certs) */
  .resume__grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: clamp(40px, 6vw, 72px);
    align-items: start;
  }

  .resume__col-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 32px;
  }
  .resume__col-title h3 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--text);
    margin: 0;
  }
  .resume__col-icon {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.3);
    border-radius: 10px;
    color: var(--accent);
    flex-shrink: 0;
  }
  .resume__col-icon svg { width: 18px; height: 18px; }

  /* ===== EXPERIENCE TIMELINE ===== */
  .timeline {
    position: relative;
    padding-left: 36px;
  }
  .timeline::before {
    content: '';
    position: absolute;
    left: 11px; top: 12px; bottom: 12px;
    width: 1px;
    background: linear-gradient(to bottom,
      var(--border) 0%,
      var(--border-2) 30%,
      var(--border) 100%);
  }

  .tl-item {
    position: relative;
    padding-bottom: 40px;
  }
  .tl-item:last-child { padding-bottom: 0; }

  .tl-item::before {
    content: '';
    position: absolute;
    left: -36px; top: 14px;
    width: 23px; height: 23px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border-2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s var(--ease-out);
  }
  .tl-item::after {
    content: '';
    position: absolute;
    left: -29px; top: 21px;
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
    transition: all 0.4s var(--ease-out);
  }
  .tl-item--current::before {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-soft);
  }
  .tl-item--current::after {
    animation: tl-pulse 2.4s ease-in-out infinite;
  }
  @keyframes tl-pulse {
    0%, 100% { transform: scale(1);   opacity: 1;   }
    50%      { transform: scale(1.2); opacity: 0.7; }
  }

  .tl-card {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 26px 28px;
    transition: all 0.4s var(--ease-out);
  }
  .tl-card:hover {
    border-color: var(--border-2);
    transform: translateY(-3px);
    box-shadow: 0 18px 40px -16px rgba(0,0,0,0.5);
  }

  .tl-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
  }
  .tl-period {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .tl-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid rgba(232,176,89,0.3);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .tl-badge::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent);
  }

  .tl-role {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
    margin: 0 0 4px;
    line-height: 1.25;
  }
  .tl-company {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--accent);
    font-weight: 500;
  }
  .tl-company a:hover { text-decoration: underline; }
  .tl-company-sep {
    width: 4px; height: 4px;
    background: var(--text-3);
    border-radius: 50%;
  }
  .tl-company-domain {
    color: var(--text-3);
    font-family: var(--font-mono);
    font-size: 12px;
  }

  .tl-bullets {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .tl-bullets li {
    position: relative;
    padding-left: 22px;
    font-size: 14.5px;
    line-height: 1.65;
    color: var(--text-2);
  }
  .tl-bullets li::before {
    content: '';
    position: absolute;
    left: 0; top: 10px;
    width: 12px; height: 1px;
    background: var(--accent);
  }

  /* "more" toggle */
  .tl-more {
    margin-top: 14px;
    background: transparent;
    border: 0;
    padding: 0;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.25s var(--ease-out);
  }
  .tl-more:hover { gap: 10px; }
  .tl-more svg {
    width: 12px; height: 12px;
    transition: transform 0.3s var(--ease-out);
  }
  .tl-card.open .tl-more svg { transform: rotate(180deg); }
  .tl-extra {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease-out);
  }
  .tl-card.open .tl-extra { max-height: 1500px; }
  .tl-extra ul {
    margin-top: 10px;
  }

  /* ===== SIDEBAR ===== */
  .resume__side {
    display: flex;
    flex-direction: column;
    gap: 32px;
    position: sticky;
    top: 100px;
  }

  /* education card */
  .edu-card {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    transition: all 0.4s var(--ease-out);
  }
  .edu-card:hover {
    border-color: var(--border-2);
    transform: translateY(-3px);
  }
  .edu-card__period {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .edu-card__degree {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--text);
    margin: 0 0 4px;
    letter-spacing: -0.01em;
    line-height: 1.3;
  }
  .edu-card__inst {
    font-size: 13.5px;
    color: var(--text-2);
    margin-bottom: 14px;
  }
  .edu-card__gpa {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.25);
    border-radius: 999px;
    font-size: 12px;
    color: var(--accent);
    font-weight: 600;
  }
  .edu-card__gpa svg { width: 12px; height: 12px; }

  /* certifications */
  .cert-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .cert-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 13.5px;
    color: var(--text-2);
    transition: all 0.25s var(--ease-out);
  }
  .cert-list li:hover {
    border-color: var(--border-2);
    color: var(--text);
    transform: translateX(4px);
  }
  .cert-list li svg {
    width: 14px; height: 14px;
    color: var(--accent);
    flex-shrink: 0;
  }
  .cert-issuer {
    color: var(--text-3);
    font-family: var(--font-mono);
    font-size: 11px;
    margin-left: auto;
    flex-shrink: 0;
  }

  /* =========================================================
     AREAS OF EXPERTISE
     ========================================================= */
  #expertise {
    border-top: 1px solid var(--border);
    background:
      radial-gradient(circle at 80% 0%, rgba(232,176,89,0.04), transparent 50%),
      radial-gradient(circle at 0% 100%, rgba(80,120,200,0.05), transparent 50%);
  }

  .exp-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .exp-card {
    position: relative;
    padding: 32px 28px;
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 22px;
    overflow: hidden;
    transition: all 0.5s var(--ease-out);
    isolation: isolate;
  }

  /* hover glow */
  .exp-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%),
                rgba(232,176,89,0.10), transparent 40%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-out);
    pointer-events: none;
    z-index: -1;
  }
  .exp-card:hover::before { opacity: 1; }

  .exp-card:hover {
    border-color: var(--border-2);
    transform: translateY(-6px);
    box-shadow: 0 22px 50px -20px rgba(0,0,0,0.6);
  }

  /* large faded number in top right */
  .exp-card__num {
    position: absolute;
    top: 22px; right: 26px;
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 300;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255,255,255,0.10);
    letter-spacing: -0.04em;
    pointer-events: none;
    transition: color 0.4s var(--ease-out), -webkit-text-stroke-color 0.4s var(--ease-out);
  }
  .exp-card:hover .exp-card__num {
    -webkit-text-stroke-color: rgba(232,176,89,0.5);
  }

  /* icon */
  .exp-card__icon {
    width: 52px; height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.25);
    border-radius: 14px;
    color: var(--accent);
    margin-bottom: 24px;
    transition: all 0.4s var(--ease-out);
  }
  .exp-card:hover .exp-card__icon {
    transform: scale(1.05) rotate(-3deg);
    background: var(--accent);
    color: #1a1208;
    border-color: var(--accent);
  }
  .exp-card__icon svg { width: 22px; height: 22px; }

  /* "new" tag for AI card */
  .exp-card__tag {
    position: absolute;
    top: 28px; left: 86px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    background: var(--accent);
    color: #1a1208;
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: 999px;
  }
  .exp-card__tag::before {
    content: '';
    width: 4px; height: 4px;
    background: #1a1208;
    border-radius: 50%;
  }

  .exp-card__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.015em;
    color: var(--text);
    margin: 0 0 10px;
    line-height: 1.25;
  }
  .exp-card__desc {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-2);
    margin: 0 0 20px;
  }

  /* skill bar */
  .exp-card__bar-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .exp-card__bar-pct {
    color: var(--accent);
    font-weight: 600;
  }
  .exp-card__bar {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.05);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 22px;
  }
  .exp-card__bar-fill {
    display: block;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 999px;
    transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .exp-card.in .exp-card__bar-fill {
    width: var(--pct, 0%);
  }

  /* tools/tags row */
  .exp-card__tools {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .exp-tool {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-2);
    letter-spacing: 0.02em;
    transition: all 0.25s var(--ease-out);
  }
  .exp-tool:hover {
    border-color: rgba(232,176,89,0.4);
    color: var(--accent);
  }

  /* expertise grid */
  #expertise {
    border-top: 1px solid var(--border);
  }

  .exp-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .exp-card {
    position: relative;
    padding: 28px 26px;
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.5s var(--ease-out);
    display: flex;
    flex-direction: column;
    min-height: 280px;
  }
  .exp-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    padding: 1px;
    background: linear-gradient(135deg, var(--card-grad-from, var(--accent)) 0%, transparent 60%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s var(--ease-out);
    pointer-events: none;
  }
  .exp-card::after {
    content: '';
    position: absolute;
    top: -50%; right: -50%;
    width: 200px; height: 200px;
    background: radial-gradient(circle, var(--card-glow, rgba(232,176,89,0.18)), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-out);
    pointer-events: none;
  }
  .exp-card:hover {
    transform: translateY(-6px);
    border-color: transparent;
  }
  .exp-card:hover::before { opacity: 1; }
  .exp-card:hover::after  { opacity: 1; }

  /* per-card colour variants */
  .exp-card--web    { --card-grad-from: #e8b059; --card-glow: rgba(232,176,89,0.20); }
  .exp-card--pm     { --card-grad-from: #7aa2f7; --card-glow: rgba(122,162,247,0.18); }
  .exp-card--data   { --card-grad-from: #9d7cd8; --card-glow: rgba(157,124,216,0.18); }
  .exp-card--track  { --card-grad-from: #4ec9b0; --card-glow: rgba(78,201,176,0.18); }
  .exp-card--mkt    { --card-grad-from: #f06292; --card-glow: rgba(240,98,146,0.18); }
  .exp-card--ai     { --card-grad-from: #e8b059; --card-glow: rgba(232,176,89,0.25); }
  .exp-card--ux     { --card-grad-from: #ff9e64; --card-glow: rgba(255,158,100,0.18); }
  .exp-card--net    { --card-grad-from: #73d0a4; --card-glow: rgba(115,208,164,0.18); }

  /* AI card gets featured ring */
  .exp-card--ai {
    border-color: rgba(232,176,89,0.35);
    background:
      linear-gradient(180deg, rgba(232,176,89,0.08), rgba(232,176,89,0.02));
  }
  .exp-card--ai::after { opacity: 0.5; }

  .exp-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
  }
  .exp-card__icon {
    width: 44px; height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--card-grad-from, var(--accent));
    transition: all 0.3s var(--ease-out);
  }
  .exp-card:hover .exp-card__icon {
    background: rgba(255,255,255,0.06);
    transform: rotate(-6deg) scale(1.05);
  }
  .exp-card__icon svg { width: 20px; height: 20px; }

  .exp-card__num {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.08em;
  }

  .exp-card__pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 9px;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.3);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .exp-card__pill::before {
    content: '';
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 6px var(--accent);
    animation: tl-pulse 2s ease-in-out infinite;
  }

  .exp-card__title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
    margin: 0 0 10px;
    line-height: 1.25;
  }

  .exp-card__desc {
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--text-2);
    margin: 0 0 18px;
    flex-grow: 1;
  }

  .exp-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: auto;
  }
  .exp-card__tag {
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 3px 8px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-3);
    letter-spacing: 0.02em;
    transition: all 0.25s;
  }
  .exp-card:hover .exp-card__tag {
    color: var(--text-2);
    border-color: var(--border-2);
  }

  /* portfolio — TODO: maybe lazy-load images on scroll */
  #portfolio {
    border-top: 1px solid var(--border);
  }

  /* category tabs */
  .pf-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    width: fit-content;
    max-width: 100%;
  }
  .pf-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
    background: transparent;
    border: 0;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
    white-space: nowrap;
  }
  .pf-tab:hover { color: var(--text); }
  .pf-tab.active {
    background: var(--accent);
    color: #1a1208;
    box-shadow: 0 6px 16px -6px rgba(232,176,89,0.5);
  }
  .pf-tab__count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px; height: 20px;
    padding: 0 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
  }
  .pf-tab.active .pf-tab__count {
    background: rgba(26,18,8,0.18);
    color: #1a1208;
  }

  .portfolio__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  /* hide-when-filtered */
  .pf-card.is-hidden {
    display: none;
  }

  .pf-card {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.5s var(--ease-out);
    display: flex;
    flex-direction: column;
    text-align: left;
    padding: 0;
    color: inherit;
    font: inherit;
    width: 100%;
  }
  .pf-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-2);
    box-shadow: 0 24px 50px -20px rgba(0,0,0,0.6);
  }

  .pf-card__media {
    position: relative;
    aspect-ratio: 503 / 360;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a20, #0f0f12);
  }
  .pf-card__img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--ease-out);
  }
  .pf-card:hover .pf-card__img { transform: scale(1.05); }

  .pf-card__media::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(11,11,13,0.05) 0%, rgba(11,11,13,0) 40%, rgba(11,11,13,0.55) 100%);
    pointer-events: none;
  }

  /* badges (top-left) — supports multiple */
  .pf-card__badges {
    position: absolute;
    top: 14px; left: 14px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }
  .pf-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    background: rgba(20,20,24,0.85);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-2);
    border-radius: 999px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
  }
  .pf-card__badge--accent {
    border-color: var(--accent);
    color: var(--accent);
  }
  .pf-card__badge svg { width: 11px; height: 11px; }

  /* hover overlay with action */
  .pf-card__hover {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 18px;
    opacity: 0;
    transition: opacity 0.35s var(--ease-out);
    pointer-events: none;
  }
  .pf-card:hover .pf-card__hover { opacity: 1; }
  .pf-card__hover-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--accent);
    color: #1a1208;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 8px 20px -6px rgba(232,176,89,0.6);
  }
  .pf-card__hover-pill svg { width: 12px; height: 12px; }

  /* card body */
  .pf-card__body {
    padding: 22px 24px 26px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .pf-card__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
    margin: 0;
    line-height: 1.2;
  }
  .pf-card__desc {
    font-size: 14px;
    color: var(--text-2);
    margin: 0;
    line-height: 1.55;
  }
  .pf-card__meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.04em;
  }
  .pf-card__tag { color: var(--accent); }
  .pf-card__sep {
    width: 3px; height: 3px;
    background: var(--text-3);
    border-radius: 50%;
  }
  .pf-card__arrow {
    margin-left: auto;
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    transition: all 0.3s var(--ease-out);
  }
  .pf-card__arrow svg { width: 12px; height: 12px; transition: transform 0.3s; }
  .pf-card:hover .pf-card__arrow {
    background: var(--accent);
    border-color: var(--accent);
    color: #1a1208;
  }
  .pf-card:hover .pf-card__arrow svg { transform: rotate(-45deg); }

  /* empty-state for filtered tabs */
  .pf-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--surface);
    border: 1px dashed var(--border-2);
    border-radius: 18px;
    color: var(--text-3);
    font-size: 14px;
  }

  /* startrader modal */
  .pf-modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(11,11,13,0.85);
    backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease-out);
  }
  .pf-modal.open {
    opacity: 1;
    pointer-events: auto;
  }
  .pf-modal__inner {
    background: linear-gradient(180deg, #15151a, #0f0f12);
    border: 1px solid var(--border-2);
    border-radius: 24px;
    width: 100%;
    max-width: 820px;
    max-height: 88vh;
    overflow-y: auto;
    transform: translateY(20px) scale(0.98);
    transition: transform 0.5s var(--ease-out);
  }
  .pf-modal.open .pf-modal__inner {
    transform: translateY(0) scale(1);
  }

  .pf-modal__head {
    position: sticky; top: 0;
    background: linear-gradient(180deg, #15151a 0%, rgba(21,21,26,0.92) 100%);
    backdrop-filter: blur(14px);
    padding: 24px 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    z-index: 1;
  }
  .pf-modal__title-row {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
  }
  .pf-modal__icon {
    width: 44px; height: 44px;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
  }
  .pf-modal__icon svg { width: 20px; height: 20px; }
  .pf-modal__title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    color: var(--text);
    margin: 0 0 2px;
    letter-spacing: -0.01em;
  }
  .pf-modal__sub {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .pf-modal__close {
    width: 38px; height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.25s;
    flex-shrink: 0;
  }
  .pf-modal__close:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
    transform: rotate(90deg);
  }
  .pf-modal__close svg { width: 16px; height: 16px; }

  .pf-modal__body { padding: 28px; }
  .pf-modal__intro {
    font-size: 14.5px;
    line-height: 1.65;
    color: var(--text-2);
    margin: 0 0 28px;
  }

  /* deliverable groups inside modal */
  .pf-group {
    margin-bottom: 28px;
  }
  .pf-group:last-child { margin-bottom: 0; }
  .pf-group__head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }
  .pf-group__num {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--accent-soft);
    border: 1px solid rgba(232,176,89,0.3);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    flex-shrink: 0;
  }
  .pf-group__title {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 500;
    color: var(--text);
    margin: 0;
    letter-spacing: -0.005em;
  }
  .pf-group__count {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.04em;
    margin-left: auto;
  }

  .sub-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    list-style: none;
    margin: 0; padding: 0;
  }
  .sub-list a {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: all 0.3s var(--ease-out);
  }
  .sub-list a:hover {
    background: var(--accent-soft);
    border-color: var(--accent);
    transform: translateX(4px);
  }
  .sub-flag {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), #b88438);
    color: #1a1208;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    flex-shrink: 0;
  }
  .sub-flag svg { width: 16px; height: 16px; }
  .sub-info {
    flex: 1;
    min-width: 0;
  }
  .sub-region {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
    line-height: 1.3;
  }
  .sub-domain {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-3);
    transition: color 0.25s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .sub-list a:hover .sub-domain { color: var(--accent); }
  .sub-arrow {
    width: 24px; height: 24px;
    color: var(--text-3);
    flex-shrink: 0;
    transition: all 0.3s;
  }
  .sub-list a:hover .sub-arrow {
    color: var(--accent);
    transform: rotate(-45deg);
  }
  .sub-arrow svg { width: 100%; height: 100%; }

  /* contact */
  #contact {
    border-top: 1px solid var(--border);
    padding-bottom: clamp(60px, 10vw, 110px);
  }

  .contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: clamp(40px, 6vw, 72px);
    align-items: start;
  }

  /* LEFT: methods */
  .contact__methods-head {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 18px;
  }

  .contact-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
  }
  .contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 18px;
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: all 0.3s var(--ease-out);
  }
  .contact-method:hover {
    border-color: var(--accent);
    transform: translateX(4px);
    background: var(--accent-soft);
  }
  .contact-method__icon {
    width: 44px; height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--accent);
    flex-shrink: 0;
    transition: all 0.3s var(--ease-out);
  }
  .contact-method:hover .contact-method__icon {
    background: var(--accent);
    border-color: var(--accent);
    color: #1a1208;
    transform: rotate(-6deg);
  }
  .contact-method__icon svg { width: 18px; height: 18px; }

  .contact-method__body {
    flex: 1;
    min-width: 0;
  }
  .contact-method__label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 3px;
  }
  .contact-method__value {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .contact-method__arrow {
    width: 20px; height: 20px;
    color: var(--text-3);
    flex-shrink: 0;
    transition: all 0.3s;
  }
  .contact-method:hover .contact-method__arrow {
    color: var(--accent);
    transform: rotate(-45deg);
  }
  .contact-method__arrow svg { width: 100%; height: 100%; }

  /* social pills row */
  .contact__socials-head {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .contact-socials {
    display: flex;
    gap: 10px;
  }
  .contact-social {
    width: 44px; height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-2);
    transition: all 0.3s var(--ease-out);
  }
  .contact-social:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #1a1208;
    transform: translateY(-3px);
  }
  .contact-social svg { width: 18px; height: 18px; }

  /* RIGHT: form card */
  .contact__form {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: clamp(24px, 4vw, 40px);
    backdrop-filter: blur(8px);
  }
  .contact__form-head {
    margin-bottom: 28px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border);
  }
  .contact__form-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    color: var(--text);
    margin: 0 0 6px;
    letter-spacing: -0.01em;
  }
  .contact__form-sub {
    font-size: 13.5px;
    color: var(--text-3);
    margin: 0;
    line-height: 1.55;
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 18px;
  }
  .form-field { margin-bottom: 18px; }
  .form-field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .form-field input,
  .form-field textarea {
    width: 100%;
    padding: 14px 16px;
    font: inherit;
    font-size: 14.5px;
    color: var(--text);
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    border-radius: 12px;
    outline: none;
    transition: all 0.25s var(--ease-out);
    font-family: var(--font-body);
  }
  .form-field textarea {
    min-height: 130px;
    resize: vertical;
  }
  .form-field input::placeholder,
  .form-field textarea::placeholder {
    color: var(--text-3);
    opacity: 0.7;
  }
  .form-field input:hover,
  .form-field textarea:hover {
    border-color: var(--border-2);
  }
  .form-field input:focus,
  .form-field textarea:focus {
    border-color: var(--accent);
    background: rgba(232,176,89,0.04);
    box-shadow: 0 0 0 4px rgba(232,176,89,0.1);
  }

  .form-submit {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 28px;
    margin-top: 8px;
    border-radius: 999px;
    background: var(--accent);
    color: #1a1208;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 0;
    transition: all 0.3s var(--ease-out);
    box-shadow: 0 12px 30px -10px rgba(232,176,89,0.5);
  }
  .form-submit:hover {
    background: var(--accent-2);
    transform: translateY(-2px);
    box-shadow: 0 18px 40px -10px rgba(232,176,89,0.7);
  }
  .form-submit svg {
    width: 16px; height: 16px;
    transition: transform 0.3s;
  }
  .form-submit:hover svg { transform: translateX(3px); }

  /* sent toast */
  .form-toast {
    margin-top: 14px;
    padding: 12px 16px;
    background: rgba(74,222,128,0.1);
    border: 1px solid rgba(74,222,128,0.3);
    border-radius: 12px;
    color: #86efac;
    font-size: 13px;
    display: none;
    align-items: center;
    gap: 10px;
  }
  .form-toast.show { display: flex; }
  .form-toast svg { width: 16px; height: 16px; flex-shrink: 0; }

  /* footer */
  .footer {
    position: relative;
    z-index: 2;
    border-top: 1px solid var(--border);
    padding: 40px var(--pad-x);
  }
  .footer__inner {
    max-width: var(--max);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
  }
  .footer__copy {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-3);
    letter-spacing: 0.04em;
  }
  .footer__nav {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0; padding: 0;
  }
  .footer__nav a {
    font-size: 13px;
    color: var(--text-2);
    transition: color 0.25s;
  }
  .footer__nav a:hover { color: var(--accent); }

  /* responsive
   bp 1100: 4-col -> 2-col grid
   bp 980:  desktop -> tablet stacked
   bp 600:  tablet -> mobile single col */
  @media (max-width: 1100px) {
    .exp-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  }

  @media (max-width: 980px) {
    .hero__inner { grid-template-columns: 1fr; gap: 56px; }
    .portrait { max-width: 380px; margin: 0 auto; }
    .nav__links, .nav__cta { display: none; }
    .nav__burger { display: inline-flex; }
    .about__grid { grid-template-columns: 1fr; }
    .about__info { position: static; }
    .resume__grid { grid-template-columns: 1fr; }
    .resume__side { position: static; }
    .contact__grid { grid-template-columns: 1fr; }
  }

  @media (max-width: 600px) {
    .hero { padding-top: 120px; padding-bottom: 60px; }
    .hero__metrics { flex-wrap: wrap; gap: 24px 36px; }
    .metric__num { font-size: 28px; }
    .tag--1 { left: -10px; padding: 8px 12px; font-size: 11px; }
    .tag--2 { right: -10px; padding: 8px 12px; font-size: 11px; }
    .tag--3 { display: none; }
    .scroll-cue { display: none; }
    .about__info { padding: 24px; }
    .about__bio p:first-child::first-letter { font-size: 52px; }
    .timeline { padding-left: 28px; }
    .tl-item::before { left: -28px; width: 19px; height: 19px; top: 14px; }
    .tl-item::after  { left: -22px; top: 19px; width: 7px; height: 7px; }
    .tl-card { padding: 20px; }
    .tl-role { font-size: 19px; }
    .cert-issuer { display: none; }
    .exp-grid { grid-template-columns: 1fr; }
    .exp-card { min-height: 0; padding: 24px; }
    .portfolio__grid { grid-template-columns: 1fr; }
    .pf-modal { padding: 12px; }
    .pf-modal__head { padding: 20px; }
    .pf-modal__body { padding: 20px; }
    .form-row { grid-template-columns: 1fr; }
    .footer__inner { flex-direction: column; text-align: center; gap: 16px; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }