/* ==========================================================================
   Vladimir Itskov — homepage stylesheet (two-column sidebar layout)
   All formatting lives here. The HTML files contain content only.
   To re-colour the site, edit ONLY the ":root" palette block below.
   ========================================================================== */

/* ---------- palette & type ---------- */
:root {
/*PALETTE*/
  --ring:            #66717F;                    /* ring around the photo                       */
  --side-bg:         #161E2A;                    /* sidebar background                          */
  --side-rule:       #28313D;                    /* sidebar rules                               */
  --side-ink:        #D8D5CE;                    /* sidebar name / nav text                     */
  --side-muted:      #B39A74;                    /* sidebar role / affiliation text             */
  --nav-hover:       rgba(255,255,255,0.06);     /* nav item hover background                   */
  --nav-current-bg:  rgba(255,255,255,0.10);     /* current nav item background                 */
  --nav-current-ink: #EDEAE3;                    /* current nav item text                       */
  --paper:           #232B37;                    /* content background                          */
  --paper-2:         rgba(255,255,255,0.06);     /* jump-list pill background                   */
  --ink:             #E3E0D9;                    /* body text                                   */
  --ink-muted:       #AAB1BA;                    /* secondary text                              */
  --rule:            rgba(255,255,255,0.13);     /* hairlines in the content column             */
  --accent:          #4FBDB7;                    /* links                                       */
  --accent-dark:     #7FD6D1;                    /* link hover                                  */
  --heading:         #F0EDE6;                    /* section headings (h2)                       */
  --title:           #6CCBC6;                    /* paper titles (italic)                       */
/*/PALETTE*/

  --sidebar-w:   260px;
  --measure:     42rem;     /* ~65–75 characters at 17px                    */

  --font: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* ---------- reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  text-decoration-color: color-mix(in srgb, var(--accent) 45%, transparent);
}
a:hover, a:focus { color: var(--accent-dark); text-decoration-color: currentColor; }

/* ---------- sidebar ---------- */
.sidebar {
  background: var(--side-bg);
  border-right: 1px solid var(--side-rule);
  color: var(--side-ink);
  padding: 2.5rem 1.5rem 2rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.portrait {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 20%;
  border: 4px solid var(--ring, var(--paper));
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
  margin-bottom: 1.1rem;
}

.sidebar .name {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
  color: var(--side-ink);
}

.sidebar .role {
  margin: 0.25rem 0 0.6rem;
  font-size: 0.95rem;
  color: var(--side-muted);
}

.sidebar .affil {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
}
.sidebar .affil a { color: var(--side-muted); text-decoration-color: var(--side-rule); }
.sidebar .affil a:hover { color: var(--side-ink); }

/* vertical navigation */
.nav {
  margin-top: 1.8rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--side-rule);
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.nav a {
  display: block;
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  color: var(--side-ink);
  text-decoration: none;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}
.nav a:hover { background: var(--nav-hover); color: var(--side-ink); }
.nav a.current {
  background: var(--nav-current-bg);
  color: var(--nav-current-ink);
  font-weight: 700;
}

/* ---------- main column ---------- */
.content {
  padding: 3rem 3rem 4rem;
  max-width: calc(var(--measure) + 6rem);
  width: 100%;
}

h1 {
  margin: 0 0 1.5rem;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--heading);
}

/* subtitle line directly under the h1 (home page) */
.lede {
  margin: -1.25rem 0 2rem;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

h2 {
  margin: 2.4rem 0 0.9rem;
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--rule);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--heading);
}
h2:first-of-type { margin-top: 0; }

p { margin: 0 0 1rem; }

/* jump list at the top of the publications page */
.jumplist {
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  font-size: 0.92rem;
}
.jumplist li a {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink-muted);
  background: var(--paper-2);
}
.jumplist li a:hover { border-color: var(--accent); color: var(--accent-dark); }

/* ---------- contact (home page) ---------- */
.contact {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.25rem;
}
.contact dt { color: var(--ink-muted); font-weight: 700; }
.contact dd { margin: 0; }

/* ---------- publication lists ---------- */
.pubs {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pubs li {
  position: relative;
  padding: 0.85rem 0 0.85rem 0;
  border-bottom: 1px solid var(--rule);
}
.pubs li:last-child { border-bottom: 0; }

.pubs em { color: var(--title); font-style: italic; }

/* the [pdf] / [arXiv] / [link] label */
.links {
  display: inline-block;
  margin-right: 0.35rem;
  font-size: 0.86rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color: var(--ink-muted);
  white-space: nowrap;
}
.links a { text-decoration: none; font-weight: 700; }

/* ---------- CV tables ---------- */
.cv {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 0.5rem;
  font-size: 0.98rem;
}
.cv td {
  vertical-align: top;
  padding: 0.5rem 1rem 0.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.cv td:last-child { padding-right: 0; }
.cv tr:last-child td { border-bottom: 0; }
.cv td:first-child {
  white-space: nowrap;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

/* awards table: name first, years last (so mute the years instead) */
.cv-awards td:first-child { color: var(--ink); white-space: normal; }
.cv-awards td:last-child  { color: var(--ink-muted); white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ---------- responsive: tablets ---------- */
@media (max-width: 900px) {
  .content { padding: 2.5rem 2rem 3rem; }
}

/* ---------- responsive: phones ---------- */
@media (max-width: 720px) {
  body {
    display: block;
    font-size: 16px;
  }

  .sidebar {
    position: static;
    height: auto;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--side-rule);
    padding: 1.25rem 1.1rem 0.9rem;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "photo name"
      "photo role"
      "photo affil"
      "nav   nav";
    column-gap: 1rem;
    align-items: start;
    text-align: left;
  }

  .portrait {
    grid-area: photo;
    width: 72px;
    height: 72px;
    border-width: 3px;
    margin: 0;
    align-self: center;
  }
  .sidebar .name  { grid-area: name;  font-size: 1.15rem; }
  .sidebar .role  { grid-area: role;  margin: 0.1rem 0 0.2rem; font-size: 0.9rem; }
  .sidebar .affil { grid-area: affil; font-size: 0.82rem; }

  .nav {
    grid-area: nav;
    margin-top: 0.9rem;
    padding-top: 0.75rem;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem 0.3rem;
  }
  .nav a { padding: 0.3rem 0.7rem; font-size: 0.92rem; }

  .content { padding: 1.5rem 1.1rem 3rem; max-width: none; }

  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.15rem; margin-top: 2rem; }

  .contact { grid-template-columns: 1fr; gap: 0.15rem; }
  .contact dt { margin-top: 0.6rem; }

  /* CV tables: stack each row's cells */
  .cv, .cv tbody, .cv tr, .cv td { display: block; width: 100%; }
  .cv td { padding: 0.1rem 0; border: 0; }
  .cv tr { padding: 0.55rem 0; border-bottom: 1px solid var(--rule); }
  .cv tr:last-child { border-bottom: 0; }
  .cv td:first-child { white-space: normal; font-size: 0.88rem; }
}

/* ---------- print ---------- */
@media print {
  body { display: block; font-size: 11pt; }
  .sidebar { position: static; height: auto; border: 0; background: none; color: #000; }
  .nav { display: none; }
  .content { max-width: none; padding: 0; }
  a { color: inherit; text-decoration: none; }
}

/* ---------- software list ---------- */
.software { list-style: none; margin: 0; padding: 0; }
.software li {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--rule);
}
.software li:last-child { border-bottom: 0; }
.software .pkg a { font-weight: 700; text-decoration: none; }
.software .lang {
  display: block;
  font-size: 0.8rem;
  color: var(--ink-muted);
}
.software .what { font-size: 0.97rem; }

@media (max-width: 720px) {
  .software li { grid-template-columns: 1fr; }
  .software .lang { display: inline; margin-left: 0.4rem; }
}