/* v0.8 inherits the v0.3 frame shell. Only the right-side experience module changes. */
:root {
  --paper: #f7f1ed;
  --ink: #171513;
  --muted: #655f5b;
  --quiet: #918681;
  --accent: #79557f;
  --accent-deep: #513a56;
  --accent-wash: rgba(121, 85, 127, 0.075);
  --line: rgba(23, 21, 19, 0.13);
  --header-h: 72px;
  --page-x: clamp(34px, 4.4vw, 84px);
  --content-start: clamp(535px, 41vw, 720px);
  --entry-inset: clamp(24px, 2.2vw, 36px);
  --timeline-x: 10px;
  --timeline-node-size: 11px;
  --timeline-node-top: 25px;
  --sans: "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
button { font: inherit; }

.experience-page { position: relative; min-height: 100dvh; isolation: isolate; overflow-x: clip; background: var(--paper); }
.experience-media-viewport {
  position: fixed;
  z-index: -2;
  inset: var(--header-h) 0 0;
  overflow: hidden;
  background: var(--paper);
  pointer-events: none;
}
.experience-media-viewport::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0 25%, rgba(247, 241, 237, 0.22) 31%, rgba(247, 241, 237, 0.9) 41%, var(--paper) 48% 100%);
}
.experience-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: center; opacity: 0; transition: opacity 220ms ease; }
.experience-media.is-ready { opacity: 1; }

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  height: var(--header-h);
  padding: 0 var(--page-x);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 241, 237, 0.94);
  backdrop-filter: blur(10px);
  font-size: 13px;
  font-weight: 700;
}
.site-header a { text-decoration: none; }
.wordmark { justify-self: start; font-size: 16px; letter-spacing: -0.02em; }
.site-header nav { display: flex; gap: clamp(26px, 3vw, 48px); }
.site-header nav a, .site-header nav span { color: var(--quiet); }
.site-header nav .is-current { color: var(--ink); }
.site-header nav span { cursor: default; }
.contact-link { justify-self: end; padding: 5px 0 7px; border-bottom: 1px solid var(--ink); }

.experience-stage {
  width: min(1060px, calc(100vw - var(--content-start) - var(--page-x)));
  min-height: 100dvh;
  margin-left: var(--content-start);
  padding: clamp(104px, 12vh, 126px) 0 clamp(64px, 8vh, 92px);
}
.section-intro { max-width: 880px; padding-bottom: clamp(38px, 5vh, 54px); }
.section-intro h1 { margin: 0; font-size: clamp(48px, 3.8vw, 60px); font-weight: 900; line-height: 0.98; letter-spacing: -0.055em; }
.section-intro p { max-width: 51em; margin: 19px 0 0; color: #4e4744; font-size: clamp(15px, 1.08vw, 17px); font-weight: 570; line-height: 1.55; letter-spacing: -0.018em; }

.experience-list { position: relative; padding-bottom: 22px; }
.experience-item {
  --item-gap: 10px;
  position: relative;
  z-index: 1;
  margin: 0 0 var(--item-gap);
  border-radius: 14px;
  scroll-margin-top: calc(var(--header-h) + 22px);
  transition: background-color 180ms ease;
}
.experience-item::before,
.experience-item::after {
  content: "";
  position: absolute;
  z-index: 1;
  left: var(--timeline-x);
  width: 1px;
  transform: translateX(-50%);
  background: rgba(121, 85, 127, 0.32);
  pointer-events: none;
}
.experience-item::before {
  top: 0;
  height: calc(var(--timeline-node-top) - 2px);
}
.experience-item::after {
  top: calc(var(--timeline-node-top) + var(--timeline-node-size) + 2px);
  bottom: calc(0px - var(--item-gap));
}
.experience-item:first-child::before { display: none; }
.experience-item:last-child::after { display: none; }
.experience-item.is-recent { --item-gap: 16px; }
.experience-heading { position: relative; z-index: 2; margin: 0; }
.experience-trigger {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 106px;
  padding: 20px 58px 20px var(--entry-inset);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "meta"
    "company"
    "focus";
  row-gap: 7px;
  border: 0;
  border-radius: 14px;
  color: inherit;
  background: rgba(255, 255, 255, 0.08);
  text-align: left;
  cursor: pointer;
  transition: background-color 180ms ease;
}
.is-earlier .experience-trigger { min-height: 94px; padding-top: 17px; padding-bottom: 17px; }
.experience-trigger::before {
  content: "";
  position: absolute;
  z-index: 4;
  top: var(--timeline-node-top);
  left: var(--timeline-x);
  width: var(--timeline-node-size);
  height: var(--timeline-node-size);
  transform: translateX(-50%);
  border: 2px solid rgba(121, 85, 127, 0.52);
  border-radius: 50%;
  background: var(--paper);
  transition: background-color 180ms ease, border-color 180ms ease;
}
.experience-trigger:hover { background: rgba(255, 255, 255, 0.34); }
.experience-trigger:focus-visible { outline: 2px solid rgba(121, 85, 127, 0.62); outline-offset: 2px; }
.experience-meta { grid-area: meta; display: flex; align-items: center; color: var(--quiet); font-size: 12.5px; font-weight: 660; line-height: 1.4; }
.experience-role::before { content: ""; display: inline-block; width: 18px; height: 1px; margin: 0 10px 4px; background: rgba(23, 21, 19, 0.22); }
.experience-company { grid-area: company; max-width: 34em; color: #2b2725; font-size: clamp(18px, 1.22vw, 21px); font-weight: 820; line-height: 1.34; letter-spacing: -0.024em; }
.experience-focus { grid-area: focus; max-width: 46em; color: #66516a; font-size: clamp(16px, 1.08vw, 18px); font-weight: 760; line-height: 1.44; letter-spacing: -0.016em; }
.is-earlier .experience-company { font-size: clamp(17px, 1.08vw, 19px); }
.is-earlier .experience-focus { color: #756479; font-size: clamp(15px, 1vw, 16.5px); font-weight: 720; }
.experience-state { position: absolute; top: 50%; right: 20px; width: 24px; height: 24px; transform: translateY(-50%); }
.experience-state::before, .experience-state::after { content: ""; position: absolute; top: 50%; left: 4px; width: 16px; height: 1px; background: var(--quiet); transition: transform 220ms ease, background-color 180ms ease; }
.experience-state::after { transform: rotate(90deg); }

.experience-item.is-open {
  --item-gap: 30px;
  border-radius: 14px;
  background: linear-gradient(110deg, rgba(121, 85, 127, 0.105), rgba(255, 255, 255, 0.2) 70%, rgba(255, 255, 255, 0.06));
}
.experience-item.is-open .experience-trigger {
  border-radius: 14px 14px 0 0;
  background: transparent;
}
.experience-item.is-open .experience-trigger::before { border-color: var(--accent); background: var(--accent); }
.experience-item.is-open .experience-company { color: var(--ink); }
.experience-item.is-open .experience-focus { max-width: 46em; color: var(--accent-deep); font-weight: 760; }
.experience-item.is-open .experience-state::before, .experience-item.is-open .experience-state::after { background: var(--accent); }
.experience-item.is-open .experience-state::after { transform: rotate(0deg); }

.experience-panel { display: grid; grid-template-rows: 0fr; opacity: 0; visibility: hidden; transition: grid-template-rows 300ms cubic-bezier(0.22, 1, 0.36, 1), opacity 180ms ease, visibility 0s linear 300ms; }
.experience-item.is-open .experience-panel { grid-template-rows: 1fr; opacity: 1; visibility: visible; transition: grid-template-rows 300ms cubic-bezier(0.22, 1, 0.36, 1), opacity 220ms ease 45ms, visibility 0s; }
.experience-panel-inner {
  position: relative;
  z-index: 2;
  min-height: 0;
  overflow: hidden;
  padding: 0 clamp(54px, 5vw, 74px) 0 var(--entry-inset);
}
.experience-item.is-open .experience-panel-inner { padding-top: 8px; padding-bottom: 34px; }
.detail-section + .detail-section { margin-top: 28px; }
.detail-heading { width: fit-content; margin: 0 0 12px; color: var(--accent); font-size: 12px; font-weight: 780; line-height: 1.4; letter-spacing: 0.08em; }
.detail-context,
.evidence-list li { color: #3f3936; font-size: clamp(15px, 1vw, 16.5px); font-weight: 500; line-height: 1.72; }
.detail-context { max-width: 52em; margin: 0; padding: 0; }
.evidence-list { display: grid; grid-template-columns: 1fr; gap: 14px; max-width: 52em; margin: 0; padding: 0; list-style: none; counter-reset: work-item; }
.evidence-list li { position: relative; padding-left: 40px; counter-increment: work-item; }
.evidence-list li::before { content: counter(work-item, decimal-leading-zero); position: absolute; top: 2px; left: 0; color: var(--accent); font-size: 11px; font-weight: 780; letter-spacing: 0.04em; }
.departure { margin: 26px 0 0; color: var(--quiet); font-size: 12.5px; font-weight: 560; line-height: 1.55; }

@media (max-width: 1120px) and (min-width: 761px) {
  :root { --content-start: clamp(420px, 38vw, 520px); --page-x: 34px; }
  .experience-stage { width: calc(100vw - var(--content-start) - var(--page-x)); }
}
@media (max-width: 760px) {
  :root { --header-h: 60px; --page-x: 20px; --entry-inset: 18px; }
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .experience-media-viewport { position: absolute; height: 54dvh; }
  .experience-media-viewport::after { background: linear-gradient(180deg, transparent 34%, var(--paper) 94%); }
  .experience-stage { width: auto; margin-left: 0; padding: calc(var(--header-h) + 43dvh) var(--page-x) 64px; }
  .section-intro { padding-bottom: 32px; }
  .section-intro h1 { font-size: clamp(42px, 13vw, 56px); }
  .experience-trigger { min-height: 98px; padding-right: 46px; border-radius: 12px; }
  .experience-item.is-open .experience-trigger { border-radius: 12px 12px 0 0; }
  .experience-panel-inner { padding-right: 22px; }
  .experience-meta { font-size: 11.5px; }
  .experience-company { font-size: 18px; }
  .experience-focus { font-size: 15px; }
  .experience-state { right: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .experience-media, .experience-trigger, .experience-trigger::before, .experience-panel, .experience-state::before, .experience-state::after { transition: none; }
}
@media print {
  .site-header, .experience-media-viewport { display: none; }
  .experience-stage { width: auto; margin: 0; padding: 0; }
  .experience-panel { grid-template-rows: 1fr; opacity: 1; visibility: visible; }
  .experience-panel-inner { padding: 0 0 28px; background: transparent; }
  .experience-state { display: none; }
}