/* Hugo Romat — personal site
   Manrope typography; warm paper, ink, single teal accent.
   ------------------------------------------------------------------------- */
:root {
  --ink: #111111;
  --ink-soft: #4f4f4f;
  --ink-faint: #8a8a8a;
  --paper: #fdfcf9;
  --line: #e9e6dd;
  --line-strong: #d5d1c4;
  --accent: #2c5f5d;
  --accent-soft: #e9efee;
  --grey-icon: #9a9a9a;

  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --highlight-color: rgba(217, 152, 90, 0.18);
}

* { box-sizing: border-box; }

html, body {
  background: var(--paper);
  color: var(--ink);
  margin: 0;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 400;
  font-feature-settings: "kern", "liga", "calt";
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
}

::selection { background: var(--accent); color: var(--paper); }

a { color: var(--accent); text-decoration: none; }
a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
em { font-style: italic; }

img { max-width: 100%; }

/* ——— Shell ——— */
.shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

/* ——— Sidebar ——— */
aside.bio {
  padding: 56px 32px 40px;
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border-right: 1px solid var(--line);
}

aside.bio::-webkit-scrollbar { width: 6px; }
aside.bio::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }

.portrait {
  width: 160px;
  height: 160px;
  flex: 0 0 160px;
  align-self: flex-start;
  margin-bottom: 22px;
  overflow: hidden;
  background: var(--accent-soft);
  display: block;
  cursor: pointer;
  border-radius: 50%;
}
.portrait img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  border-radius: inherit;
  transition: filter 220ms ease;
}
.portrait:hover img { filter: brightness(1.02); }

aside.bio h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 35px;
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 12px;
  color: var(--ink);
}
aside.bio h1 a.to-top { color: inherit; text-decoration: none; cursor: pointer; display: inline-block; }
aside.bio h1 em {
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.035em;
  color: var(--accent);
}

.ms-logo { display: inline-block; width: 0.9em; height: 0.9em; vertical-align: -0.13em; margin-right: 5px;  margin-bottom:2px;}
.about .ms-logo { width: 0.82em; height: 0.82em; vertical-align: -0.1em; margin-left: 2px;  margin-right: 2px;}
.org { white-space: nowrap; }

aside.bio .role {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 16px;
  letter-spacing: -0.003em;
}
aside.bio .role strong { color: var(--ink); font-weight: 600; }
aside.bio .role a {
  color: inherit;
  border-bottom: 1px solid transparent;
  transition: color 140ms ease, border-color 140ms ease;
}
aside.bio .role a:hover { color: var(--ink); text-decoration: none; border-bottom-color: var(--line-strong); }

aside.bio .summary {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

/* ——— Side nav ——— */
nav.side {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0 -8px 26px;
}
nav.side a {
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 400;
  letter-spacing: 0.01em;
  padding: 3.5px 8px;
  border: 1px solid transparent;
  border-radius: 3px;
  transition: border-color 120ms ease, color 120ms ease, background 120ms ease;
}
nav.side a:hover {
  color: var(--accent);
  border-color: var(--line-strong);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.6);
}

aside.bio .links {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.55;
}
aside.bio .links a { color: var(--ink); }
aside.bio .links a:hover { color: var(--accent); }
aside.bio .links .email { display: block; margin-bottom: 6px; }
aside.bio .links .address { margin: 0 0 6px; font-size: 11.5px; line-height: 1.45; color: var(--ink-soft); }
aside.bio .links .address a { color: var(--ink-soft); }
aside.bio .links .address a:hover { color: var(--accent); }
aside.bio .links .profile-row { display: block; font-size: 11.5px; }
aside.bio .links .profile-row a { color: var(--ink-soft); }
aside.bio .links .profile-row a:hover { color: var(--accent); }
aside.bio .links .profile-row .sep { color: var(--line-strong); margin: 0 5px; }

/* ——— Right content ——— */
main.content {
  padding: 56px 60px 96px;
  max-width: 880px;
}

section {
  margin-bottom: 72px;
  scroll-margin-top: 56px;
}
section:last-child { margin-bottom: 0; }
section#about { margin-bottom: 60px; }

h2.section {
  font-family: var(--font-body);
  font-size: 22.5px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--accent);
  margin: 0 0 22px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}

/* ——— About ——— */
.about p {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.004em;
  color: var(--ink);
  margin: 0 0 22px;
}
.about p.bio-1 { font-size: 19px; line-height: 1.55; margin-top: 0; }
.about p.bio-2 { font-size: 15.5px; margin-bottom: 0; }
.about a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  transition: color 140ms ease, border-color 140ms ease;
}
.about a:hover { color: var(--accent); border-bottom-color: var(--accent); text-decoration: none; }
.about strong { font-weight: 600; }
.about em { color: var(--ink); font-style: italic; }

/* ——— Experience ——— */
.xp-list { display: grid; gap: 34px; }
.xp {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  align-items: start;
}
.xp-logo {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 2px;
}
.xp-logo img { width: 100%; height: 100%; object-fit: contain; display: block; filter: grayscale(100%); }
.xp-logo img[src*="msft_logo"] { width: 82%; height: 82%; }
.xp-body { min-width: 0; }
.xp-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.xp-role {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
.xp-org {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 2px 0 0;
}
.xp-org .place { font-style: normal; font-family: var(--font-body); color: var(--ink-faint); }
.xp-date {
  font-size: 12px;
  font-weight: 300;
  color: var(--ink);
  white-space: nowrap;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.6);
  line-height: 1.1;
}
.xp ul {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  gap: 7px;
}
.xp ul li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.xp ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line-strong);
}
.xp ul li strong { color: var(--ink); font-weight: 600; }
.xp ul li a { color: var(--accent); border-bottom: 1px solid var(--line-strong); }
.xp ul li a:hover { border-color: var(--accent); text-decoration: none; }

/* ——— Education ——— */
.edu-list { display: grid; gap: 22px; }
.edu {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  align-items: start;
}
.edu-logo {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 2px;
}
.edu-logo img { width: 100%; height: 100%; object-fit: contain; }
.edu-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.edu-deg { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; margin: 0; color: var(--ink); }
.edu-school { font-family: var(--font-display); font-style: italic; font-size: 14px; color: var(--ink-soft); margin: 2px 0 0; }
.edu-note { font-size: 13.5px; color: var(--ink-soft); margin: 8px 0 0; line-height: 1.55; }

/* ——— Publications ——— */
.pub-intro {
  margin: 0 0 32px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}
.pub-intro a { color: var(--ink); border-bottom: 1px solid var(--line-strong); }
.pub-intro a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

.pub-year {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 38px 0 14px;
}
.pub-year:first-of-type { margin-top: 0; }
.pub-year .y {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.6);
  line-height: 1.1;
}
.pub-year .ln { flex: 1 1 auto; height: 0; border-top: 1px solid var(--line); }

.pub-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 21px; }
.pub {
  border-radius: 4px;
  padding: 2px 6px;
  margin: -2px -6px;
  min-width: 0;
}
.pub.pub-highlight { animation: pubFlash 3200ms var(--ease-in-out) forwards; }
@keyframes pubFlash {
  0%, 16% { background-color: var(--highlight-color); box-shadow: 0 0 0 1px rgba(217, 152, 90, 0.22); }
  100% { background-color: rgba(217, 152, 90, 0); box-shadow: 0 0 0 1px rgba(217, 152, 90, 0); }
}
.pub-body { min-width: 0; }
.pub-title {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink);
}
.pub-title a { color: var(--ink); }
.pub-title a:hover { color: var(--accent); text-decoration: none; }
.pub-authors { font-size: 13px; color: var(--ink-soft); margin: 0 0 4px; line-height: 1.5; }
.pub-authors .au { white-space: nowrap; }
.pub-authors .me { color: var(--ink); font-weight: 600; }
.pub-venue { font-family: var(--font-display); font-style: italic; font-size: 14px; color: var(--ink-soft); margin: 0 0 10px; }
.pub-venue .award {
  display: inline-block;
  font-family: var(--font-body);
  background: #e2dfd6;
  color: var(--ink);
  font-weight: 600;
  font-style: normal;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  margin-left: 10px;
  padding: 3px 8px;
  border-radius: 3px;
  vertical-align: 1px;
  border: 1px solid #cfcdc4;
}
.pub-venue .award::before { content: "\2605"; font-size: 9px; margin-right: 5px; opacity: 0.7; color: var(--ink-soft); }

.pub-icons { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.pub-icons a, .pub-icons button {
  color: var(--grey-icon);
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 120ms ease;
}
.pub-icons a:hover, .pub-icons button:hover { color: var(--accent); text-decoration: none; }
.pub-icons button[aria-expanded="true"] { color: var(--accent); }
.pub-icons svg { width: 14px; height: 14px; display: block; }

/* ——— Cite popover ——— */
.cite-pop {
  margin-top: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-4px);
  transition: height 360ms var(--ease-in-out), margin-top 360ms var(--ease-in-out),
              opacity 220ms ease, transform 280ms var(--ease-out);
  position: relative;
}
.cite-pop.open { opacity: 1; transform: translateY(0); margin-top: 16px; }
.cite-card {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04), 0 18px 38px rgba(0, 0, 0, 0.07);
  overflow: hidden;
}
.cite-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #fbfaf5 0%, var(--paper) 100%);
}
.cite-head .cite-lab {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.cite-head .cite-actions { display: flex; align-items: center; gap: 8px; }
.cite-head .cite-status { font-size: 10.5px; color: var(--accent); letter-spacing: 0.04em; opacity: 0; transition: opacity 200ms ease; }
.cite-head .cite-status.show { opacity: 1; }
.cite-head button {
  font-family: var(--font-body);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 3px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.cite-head .copy-btn { background: var(--ink); color: #fff; border: 1px solid var(--ink); }
.cite-head .copy-btn:hover { background: var(--accent); border-color: var(--accent); }
.cite-head .close-btn {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line-strong);
  padding: 4px 9px 5px;
  font-size: 13px;
  letter-spacing: 0;
  line-height: 1;
  text-transform: none;
}
.cite-head .close-btn:hover { color: var(--ink); border-color: var(--ink); }
.cite-card pre.bibtex {
  margin: 0;
  padding: 14px 16px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--ink);
  background: #fafaf5;
  overflow-x: auto;
  white-space: pre;
}

/* ——— Footer ——— */
.foot {
  margin-top: 64px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-faint);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.foot a { color: var(--ink-soft); }

/* ——— Responsive ——— */
@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  aside.bio {
    position: static;
    height: auto;
    overflow: visible;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 40px 24px;
  }
  aside.bio .links { margin-top: 20px; }
  main.content { padding: 48px 24px 64px; }
  nav.side { flex-direction: row; flex-wrap: wrap; gap: 6px; }
}

@media (max-width: 560px) {
  .xp-head, .edu-head { flex-direction: column; gap: 4px; }
}

/* ——— Scroll-reveal animations ——— */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s var(--ease-out),
    transform 0.7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Gentle entrance for the sidebar on load */
@keyframes bio-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
.bio > * {
  animation: bio-in 0.8s var(--ease-out) both;
  animation-delay: calc(var(--bio-i, 0) * 70ms + 80ms);
}

/* Underline sweep on nav + inline links */
nav.side a,
.content a:not(.featured-card):not(.cite-btn):not(.copy-btn) {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 0.35s var(--ease-out);
}
nav.side a:hover,
.content a:not(.featured-card):not(.cite-btn):not(.copy-btn):hover {
  text-decoration: none;
  background-size: 100% 1px;
}

/* Lift experience / education cards on hover */
.xp, .edu {
  transition:
    transform 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out);
}
.xp:hover, .edu:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px -18px rgba(17, 17, 17, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .bio > * { animation: none; }
  .xp:hover, .edu:hover { transform: none; box-shadow: none; }
}