/* =====================================================================
   Rustem Islamov — shared site stylesheet (yas.pub-inspired)
   Link this from every page:
     <link rel="stylesheet" href="/style.css" />
   and load the fonts once in each <head>:
     <link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap" rel="stylesheet" />
   ===================================================================== */

/* ---------- design tokens ---------- */
:root{
  --fg:#1a1a1a; --muted:#666; --primary:#8e4585; --bg:#ffffff; --rule:#e5e5e5;
  --mono:'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans:'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

/* ---------- base (all pages) ---------- */
*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family:var(--mono); font-size:15px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{ background:rgba(181,126,220,.4); }
a{ color:var(--primary); text-decoration:none; }
a:hover{ text-decoration:underline; }
p{ margin:.5rem 0; }
ul{ margin:.4rem 0; padding-left:1.25rem; }
/* li{ margin:.15rem 0; }
ul ul{ margin:.1rem 0 .3rem; } */
li{ margin:.05rem 0; line-height:1.0; }
ul ul{ margin:.05rem 0 .2rem; }
.muted{ color:var(--muted); }
h2{ font-size:clamp(1.5rem,3.5vw,1.95rem); font-weight:700; margin:1.8rem 0 .7rem; scroll-margin-top:20px; }

/* centered page width — used by .wrap (homepage) and .container (legacy pages) */
.wrap,
.container{ max-width:1120px; margin:0 auto; padding-left:28px; padding-right:28px; }
.wrap{ padding-top:28px; padding-bottom:72px; }

/* ---------- top navigation ---------- */
/* (a) homepage version: <nav class="topnav"> */
.topnav{
  display:flex; justify-content:flex-end; align-items:center; flex-wrap:wrap;
  gap:14px 30px; font-family:var(--sans); font-size:1.05rem; font-weight:500; padding:10px 0 4px;
}
.topnav a{ color:var(--fg); }
.topnav a:hover{ color:var(--primary); text-decoration:none; }

/* (b) legacy Hugo Bootstrap navbar: <nav class="navbar ...">  */
.navbar.fixed-top{ position:static; }              /* don't overlap content */
.navbar{ background:#fff; border:0; box-shadow:none; padding:0; }
.navbar .container{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; padding-top:14px; padding-bottom:6px; }
.navbar-brand{ font-family:var(--mono); font-weight:700; font-size:1.25rem; color:var(--fg) !important; }
.navbar-brand:hover{ text-decoration:none; color:var(--primary) !important; }
.navbar-toggler{ display:none !important; }        /* hide hamburger; menu always shown */
.navbar-collapse{ display:flex !important; flex-basis:auto; width:auto; align-items:center; }
.navbar-nav{ display:flex !important; flex-direction:row !important; flex-wrap:wrap; align-items:center; gap:14px 30px; list-style:none; margin:0; padding:0; }
.navbar-nav.ml-auto{ display:none !important; }    /* hide the search-icon list */
.nav-item{ display:block !important; }
.nav-link{ font-family:var(--sans); font-weight:500; font-size:1.05rem; color:var(--fg) !important; padding:0 !important; }
.nav-link:hover{ color:var(--primary) !important; text-decoration:none; }

/* ---------- homepage hero & grid ---------- */
.hero{ display:flex; justify-content:space-between; align-items:center; gap:32px; margin-top:96px; }
.hero h1{ font-size:clamp(2.6rem,6vw,4.4rem); font-weight:700; line-height:1; margin:0; letter-spacing:.5px; }
.avatar{ width:170px; height:170px; border-radius:50%; object-fit:cover; flex:0 0 auto; }
.grid{ display:grid; grid-template-columns:1fr 1fr; gap:24px 56px; margin-top:56px; }
.col-left h2:first-child, .col-right h2:first-child{ margin-top:0; }
.edu-item{ margin-bottom:1.1rem; }
.edu-item .deg{ font-weight:600; }
.news ul{ padding-left:0; }
.news li{ list-style:none; margin:0 0 1rem; }
.news .date{ font-weight:600; display:block; }

/* ---------- research page ---------- */
.research-hero{ background:none; padding:40px 0 0; margin:0; }
.research-hero-box{ background:none; border:0; padding:0; box-shadow:none; }
.research-hero-box h1{ font-family:var(--mono); font-size:clamp(1.4rem,3vw,1.9rem); font-weight:700; color:var(--fg); margin:0 0 .4rem; line-height:1.15; }
.research-hero-box p{ font-style:normal; font-size:1.05rem; color:var(--muted); margin:0; }
.research-intro{ padding:1.5rem 0 2rem; max-width:100%; }
.research-intro .highlight{ color:var(--primary); font-weight:700; }

.topic-cards-row{ display:flex; gap:1.5rem; flex-wrap:wrap; margin-bottom:3rem; }
.topic-card-link{ text-decoration:none !important; flex:1; min-width:260px; }
.topic-card{ border:1px solid var(--rule); border-radius:14px; overflow:hidden; cursor:pointer; background:#fff; height:100%; transition:transform .2s, box-shadow .2s, border-color .2s; }
.topic-card:hover{ transform:translateY(-4px); box-shadow:0 10px 30px rgba(142,69,133,.15); border-color:var(--primary); }
.topic-card-img{ width:100%; height:180px; object-fit:cover; display:block; background:#f6f6f6; }
.topic-card-body{ padding:1.2rem 1.3rem 1.4rem; }
.topic-card-body h3{ font-family:var(--mono); color:var(--fg); font-size:1.05rem; font-weight:700; margin:0 0 .7rem; }
.topic-tags{ display:flex; flex-wrap:wrap; gap:6px; }
.topic-tag{ background:#f3eef2; color:var(--primary); font-size:.75rem; font-weight:600; padding:3px 10px; border-radius:20px; border:1px solid #e3d2df; font-family:var(--sans); }

/* ===================== publication list ===================== */
/* author names — highlight only on hover */
.li-cite-author a{ color:var(--fg); text-decoration:none; }
.li-cite-author a:hover{ color:var(--primary); text-decoration:underline; }
.universal-wrapper{ max-width:1120px; margin:0 auto; padding-left:28px; padding-right:28px; }


/* paper title — bold, highlight on hover */
.pub-list-item a.specialeffects{ color:var(--fg); font-weight:700; text-decoration:none; }
.pub-list-item a.specialeffects:hover{ color:var(--primary); text-decoration:underline; }

/* PDF / Cite / arXiv / Poster / Abstract … as boxed buttons */
.pub-list-item .btn{
  display:inline-block; font-family:var(--sans); font-size:.8rem; font-weight:500;
  color:var(--primary); background:#fff; border:1px solid var(--primary); border-radius:6px;
  padding:2px 10px; margin:5px 4px 0 0; line-height:1.5; cursor:pointer; text-decoration:none;
}
.pub-list-item .btn:hover{ background:var(--primary); color:#fff; text-decoration:none; }

/* contribution cards: gray line hugs the text exactly */
.section-grey .card-body{ padding-top:0 !important; padding-bottom:0 !important; }
.section-grey .exp-card-title{ margin-top:0 !important; }
.section-grey .exp-card-desc{ margin-bottom:0 !important; }

/* spacing inside & between publications */
/* .pub-list-item p{ margin-top:0 !important; margin-bottom:.15rem !important; line-height:1.5; } */
/* each paper sits in its own .pub-topic-item — make THAT the only spacing unit */
.pub-topic-item{ margin:0 0 0.7rem 0 !important; }   /* identical gap below every paper */
.pub-list-item{ margin:0 !important; }               /* kill inline 1rem so nothing stacks/collapses */

.pub-year-label{
  font-family:var(--mono); font-size:1.15rem; font-weight:700; color:var(--fg);
  border-left:0; padding:0 0 6px; margin:.6rem 0 .7rem; border-bottom:2px solid var(--rule);
}


/* abstract — collapsed until the Abstract button is clicked */
.collapse{ display:none; }
.collapse.show{ display:block; }
.pub-list-item .collapse .card-body{
  margin-top:8px; padding:12px 14px; border:1px solid var(--rule); border-radius:8px;
  background:#fafafa; font-size:.9rem; color:var(--muted);
}

/* ---------- Cite modal ---------- */
.modal{ display:none; position:fixed; inset:0; z-index:1050; overflow:auto;
  background:rgba(0,0,0,.5); }
.modal.show{ display:block; }                 /* JS adds .show to open it */
.modal-dialog{ max-width:680px; margin:6vh auto; }
.modal-content{ background:#fff; border:1px solid var(--rule); border-radius:12px;
  box-shadow:0 20px 60px rgba(0,0,0,.25); overflow:hidden; }
.modal-header{ display:flex; align-items:center; justify-content:space-between;
  padding:16px 20px; border-bottom:1px solid var(--rule); }
.modal-title{ font-family:var(--mono); font-weight:700; font-size:1.3rem; margin:0; }
.modal-header .close{ background:none; border:0; font-size:1.6rem; line-height:1;
  color:var(--muted); cursor:pointer; }
.modal-body{ padding:20px; }
.modal-body pre{ background:#f6f6f6; border:1px solid var(--rule); border-radius:8px;
  padding:14px; overflow:auto; font-family:var(--mono); font-size:.85rem; }
.modal-footer{ display:flex; justify-content:flex-end; gap:10px;
  padding:14px 20px; border-top:1px solid var(--rule); }
.modal-footer .btn{ display:inline-flex; align-items:center; gap:6px;
  font-family:var(--sans); font-size:.9rem; color:var(--primary); background:#fff;
  border:1px solid var(--primary); border-radius:8px; padding:8px 16px;
  cursor:pointer; text-decoration:none; }
.modal-footer .btn:hover{ background:var(--primary); color:#fff; }


/* ---------- footer (both layouts) ---------- */
footer, .site-footer{ margin-top:64px; padding-top:20px; border-top:1px solid var(--rule); color:var(--muted); font-size:.85rem; }
.site-footer .powered-by{ margin:0; }
#back_to_top, .powered-by .float-right{ display:none !important; }

/* ---------- neutralize leftover Hugo/Bootstrap widgets ---------- */
.search-results, #search{ display:none !important; }   /* search overlay */
/* .modal{ display:none !important; }                       cite modal */

/* ---------- responsive ---------- */
@media (max-width:820px){ .grid{ grid-template-columns:1fr; } }
@media (max-width:560px){ .avatar{ width:120px; height:120px; } .hero{ margin-top:48px; } }
