:root {
  --ink: #17191d;
  --muted: #64676d;
  --paper: #fff;
  --side: #ececed;
  --canvas: #858585;
  --line: #d8d8d8;
  --accent: #b98a3d;
  --navy: #09152c;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "IBM Plex Sans Thai", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 8px 14px; color: white; background: var(--navy); transform: translateY(-160%); }
.skip-link:focus { transform: none; }

.site-nav {
  position: sticky; top: 0; z-index: 50;
  height: 68px; padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,.96); border-bottom: 1px solid #ddd;
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-logo { width: 48px; height: 48px; object-fit: contain; flex: 0 0 auto; }
.brand b { display: block; font: 600 17px/1 "Montserrat", sans-serif; letter-spacing: .1em; }
.brand small { display: block; margin-top: 5px; color: var(--accent); font: 600 7px/1 "Montserrat", sans-serif; text-transform: uppercase; letter-spacing: .1em; }
.site-menu { display: flex; align-items: center; gap: 6px; }
.site-menu a { padding: 8px 14px; font-size: 13px; font-weight: 500; text-decoration: none; }
.site-menu a:hover, .site-menu a.active { color: white; background: var(--navy); }
.menu-button { display: none; align-items: center; gap: 7px; padding: 8px 13px; border: 0; color: white; background: var(--navy); }

.resume-shell { width: min(var(--max), calc(100% - 48px)); margin: 68px auto; }
.resume-paper {
  display: grid; grid-template-columns: 34% 66%;
  background: var(--paper);
  box-shadow: -16px 16px 0 rgba(0,0,0,.72), 0 26px 70px rgba(0,0,0,.28);
}
.resume-sidebar { min-width: 0; background: var(--side); }
.portrait { margin: 0; position: relative; background: #d7d7d9; }
.portrait img { width: 100%; aspect-ratio: .88; object-fit: cover; object-position: center 26%; filter: none; }
.portrait figcaption { padding: 15px 28px; color: #6c6c70; font: 500 9px "Montserrat", sans-serif; letter-spacing: .2em; text-align: center; text-transform: uppercase; }
.sidebar-section { margin: 0 42px; padding: 34px 0 2px; border-top: 1px solid transparent; }
.sidebar-section + .sidebar-section { margin-top: 22px; border-top-color: #d0d0d0; }
.sidebar-section h2, .main-section > h2 {
  margin: 0 0 22px;
  font: 400 13px/1.2 "Montserrat", "IBM Plex Sans Thai", sans-serif;
  letter-spacing: .34em; text-transform: uppercase;
}
.sidebar-section h2 span, .main-section > h2 span { display: block; margin-top: 7px; color: #777; font: 400 11px "IBM Plex Sans Thai", sans-serif; letter-spacing: .08em; text-transform: none; }
.contact ul, .plain-list, .dated-list, .experience-list { margin: 0; padding: 0; list-style: none; }
.contact li { display: grid; grid-template-columns: 20px 1fr; gap: 8px; align-items: center; margin: 10px 0; font-size: 12px; overflow-wrap: anywhere; }
.contact i { font-size: 16px; }
.contact a { text-decoration: none; }
.contact a:hover { color: var(--accent); }
.section-kicker { margin: 0 0 14px; font-size: 12px; font-style: italic; font-weight: 600; }
.plain-list li { margin: 7px 0; font-size: 12px; }
.education-list article { margin-bottom: 25px; }
.education-list strong { display: block; font-size: 12px; text-transform: uppercase; }
.education-list span, .education-list p { display: block; margin: 2px 0 0; color: #555; font-size: 11px; line-height: 1.45; }
.org { display: flex; align-items: flex-start; gap: 12px; padding-bottom: 42px; }
.org img { width: 44px; height: 44px; object-fit: contain; }
.org p { margin: 0; font-size: 11px; line-height: 1.55; }

.resume-main { min-width: 0; padding: 58px 52px 56px; }
.identity { padding-bottom: 32px; border-bottom: 1px solid var(--line); text-align: center; }
.identity-mobile { display: none; }
.profile-code { margin: 0 0 25px; color: var(--accent); font: 500 9px "Montserrat", sans-serif; letter-spacing: .24em; }
.identity h1 { margin: 0; font-size: clamp(40px, 5.1vw, 66px); font-weight: 300; line-height: 1.12; letter-spacing: .06em; }
.identity h1 span { letter-spacing: .13em; }
.roman-name { margin: 19px 0 23px; color: #555; font: 400 12px "Montserrat", sans-serif; letter-spacing: .28em; }
.professional-title { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 6px 0; border-top: 1px solid var(--line); color: #666; }
.professional-title span { font-size: 12px; }
.professional-title b { font: 500 10px "Montserrat", sans-serif; letter-spacing: .15em; }
.main-section { padding: 34px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 82px; }
.main-section:last-child { border-bottom: 0; }
.main-section > h2 { margin-bottom: 23px; }
.summary { margin: 0; color: #444; font-size: 13px; line-height: 1.75; text-align: justify; }
.entry { padding: 0 0 24px; }
.entry:last-child { padding-bottom: 0; }
.entry-head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; }
.entry h3 { margin: 0; font-size: 14px; font-weight: 600; line-height: 1.4; }
.entry time, .award-grid time, .dated-list time, .experience-list time { flex: 0 0 auto; color: var(--accent); font: 500 10px "Montserrat", sans-serif; letter-spacing: .06em; }
.entry-place { margin: 4px 0 7px; color: #555; font-size: 12px; }
.entry ul { margin: 0; padding-left: 22px; color: #555; font-size: 12px; }
.entry p { margin: 5px 0 0; color: #555; font-size: 12px; }
.entry-list.compact .entry { padding-bottom: 18px; }
.award-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.award-grid article { display: grid; grid-template-columns: 58px 1fr; gap: 8px; padding: 12px 0; border-top: 1px solid #eee; }
.award-grid .award-featured { grid-column: 1 / -1; padding: 16px 0; }
.award-grid p { margin: 0; font-size: 11px; line-height: 1.5; }
.publication-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.publication-columns h3 { margin: 0 0 13px; font-size: 13px; }
.publication-columns h3 i { color: var(--accent); margin-right: 6px; }
.dated-list li { display: grid; grid-template-columns: 50px 1fr; gap: 7px; padding: 8px 0; border-top: 1px solid #eee; font-size: 11px; }
.experience-list li { display: grid; grid-template-columns: 60px 1fr; gap: 10px; padding: 13px 0; border-top: 1px solid #eee; }
.experience-list strong { font-size: 12px; }
.experience-list p { margin: 3px 0 0; color: #666; font-size: 11px; }

.site-footer {
  width: min(var(--max), calc(100% - 48px)); margin: -68px auto 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 20px 28px; color: #d9dee8; background: var(--navy);
}
.site-footer strong { display: block; color: white; font: 500 12px "Montserrat", sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.site-footer span { display: block; margin-top: 4px; font-size: 10px; }
.footer-actions { display: flex; align-items: center; gap: 20px; }
.footer-actions a, .to-top { color: white; font-size: 10px; text-decoration: none; }
.to-top { border: 0; background: none; cursor: pointer; }

.reveal,
.reveal.is-visible { opacity: 1; transform: none; transition: none; }

@media (max-width: 860px) {
  .menu-button { display: inline-flex; }
  .site-menu { position: absolute; top: 68px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; padding: 14px 22px 20px; background: white; box-shadow: 0 18px 35px rgba(0,0,0,.12); }
  .site-menu.open { display: flex; }
  .site-menu a { padding: 11px 14px; }
  .resume-shell { width: min(100% - 30px, 700px); margin: 34px auto; }
  .resume-paper { grid-template-columns: 1fr; box-shadow: -8px 8px 0 rgba(0,0,0,.68), 0 18px 45px rgba(0,0,0,.25); }
  .portrait img { aspect-ratio: 1.28; object-position: center 25%; }
  .resume-sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .portrait { grid-column: 1 / -1; }
  .identity-mobile { display: block; grid-column: 1 / -1; padding: 38px 30px; background: white; }
  .resume-main > .identity { display: none; }
  .contact, .affiliation { grid-column: 1 / -1; }
  .sidebar-section { margin-left: 34px; margin-right: 34px; }
  .resume-main { padding: 48px 36px; }
  .site-footer { width: min(100% - 30px, 700px); margin: -34px auto 30px; }
}

@media (max-width: 560px) {
  .site-nav { height: 62px; padding: 0 16px; }
  .site-menu { top: 62px; }
  .resume-shell { width: calc(100% - 20px); margin-top: 22px; }
  .resume-sidebar { display: block; }
  .portrait img { aspect-ratio: .98; }
  .portrait figcaption { padding: 13px 20px; }
  .sidebar-section { margin-left: 28px; margin-right: 28px; }
  .resume-main { padding: 40px 28px; }
  .identity h1 { font-size: 40px; }
  .identity h1 span { letter-spacing: .06em; }
  .roman-name { font-size: 9px; letter-spacing: .18em; }
  .professional-title { display: block; }
  .professional-title b { display: block; margin-top: 8px; }
  .award-grid, .publication-columns { grid-template-columns: 1fr; }
  .publication-columns { gap: 26px; }
  .entry-head { display: block; }
  .entry-head time { display: block; margin-top: 4px; }
  .site-footer { width: calc(100% - 20px); margin: -22px auto 20px; display: block; padding: 20px; }
  .footer-actions { margin-top: 16px; justify-content: space-between; }
}

@media print {
  body { background: white; }
  .site-nav, .site-footer { display: none; }
  .resume-shell { width: 100%; margin: 0; }
  .resume-paper { box-shadow: none; }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}