/* ============================================================
   OmniOPSD — project page styles
   Rationale-Privileged On-Policy Self-Distillation
   ============================================================ */

:root{
  --navy:#12305a;
  --navy-deep:#0d2444;
  --blue:#2b6cb0;
  --blue-bright:#1f6feb;
  --orange:#e8792b;
  --orange-soft:#f6a15a;
  --green:#2f8f4e;
  --ink:#1c2530;
  --muted:#5b6b7d;
  --line:#e6ebf1;
  --bg-soft:#f6f8fb;
  --radius:14px;
  --shadow:0 10px 30px rgba(18,48,90,.07);
  --shadow-sm:0 6px 18px rgba(18,48,90,.05);
}

html{scroll-behavior:smooth;}
body{
  font-family:'Noto Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
.headline,.title,.subtitle,.publication-title,.section-title,.stat-num,.idea h4,
.nav-brand,.section-kicker,table.results thead th,table.mini th,.footer-omni .brand{
  font-family:'Manrope','Google Sans','Noto Sans',sans-serif;
}

/* ---------------- Navbar ---------------- */
.nav-omni{
  position:sticky;top:0;z-index:30;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-omni .nav-inner{
  max-width:1080px;margin:0 auto;padding:.7rem 1.25rem;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-brand{font-family:'Google Sans';font-weight:800;color:var(--navy);font-size:1.15rem;letter-spacing:-.01em;}
.nav-brand .dot{color:var(--orange);}
.nav-links{display:flex;gap:1.35rem;align-items:center;}
.nav-links a{color:var(--muted);font-weight:600;font-size:.92rem;transition:color .15s ease;}
.nav-links a:hover{color:var(--blue-bright);}
@media(max-width:720px){.nav-links{display:none;}}

/* ---------------- Hero ---------------- */
.hero-omni{
  background:
    radial-gradient(1100px 460px at 50% -12%, rgba(43,108,176,.12), transparent 62%),
    radial-gradient(900px 380px at 88% 0%, rgba(232,121,43,.08), transparent 60%),
    linear-gradient(180deg,#fbfcfe 0%,#ffffff 100%);
  border-bottom:1px solid var(--line);
  padding:3.4rem 1.25rem 3rem;
}
.hero-inner{max-width:960px;margin:0 auto;text-align:center;}
.venue-tag{
  display:inline-block;margin-bottom:1.1rem;padding:.32rem .9rem;
  border:1px solid rgba(43,108,176,.3);border-radius:999px;
  background:rgba(43,108,176,.07);color:var(--blue);
  font-weight:700;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
}
.publication-title{
  font-weight:800;letter-spacing:-.015em;line-height:1.14;
  font-size:clamp(1.7rem,4.4vw,2.9rem);margin-bottom:.2rem;color:var(--navy);
}
.title-omni{
  background:linear-gradient(92deg,var(--navy) 0%,var(--blue) 52%,var(--orange) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.publication-tagline{
  color:var(--muted);font-size:clamp(1rem,2.2vw,1.22rem);font-weight:500;
  margin:.5rem auto 1.6rem;max-width:720px;
}
.publication-authors{font-size:1.08rem;line-height:1.95;margin-bottom:.15rem;color:var(--ink);font-weight:500;}
.author-block{display:inline-block;margin:0 .2rem;white-space:nowrap;}
.author-block a{color:var(--blue);font-weight:600;}
.author-block a:hover{color:var(--orange);}
.author-block sup{color:var(--muted);font-weight:600;}
.author-block sup .star{color:var(--orange);font-weight:800;}
.affiliations{color:var(--muted);font-size:.95rem;line-height:1.95;max-width:960px;margin:.85rem auto 0;}
.affiliations sup{color:var(--blue);font-weight:700;}
.marks{color:var(--muted);font-size:.9rem;margin-top:.55rem;}
.marks .star{color:var(--orange);font-weight:700;}
.marks .dag{color:var(--blue);font-weight:700;}

/* link buttons */
.publication-links{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;margin-top:1.7rem;}
.link-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.6rem 1.25rem;border-radius:999px;border:0;cursor:pointer;
  background:var(--navy-deep);color:#fff;font-weight:600;font-size:.98rem;
  transition:transform .12s ease,background .2s ease,box-shadow .2s ease;
}
.link-btn i{font-size:1.02rem;}
.link-btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(13,36,68,.28);color:#fff;}
.link-btn.arxiv{background:#b31b1b;}
.link-btn.arxiv:hover{background:#cf2222;box-shadow:0 10px 22px rgba(179,27,27,.32);}
.link-btn.code{background:#24292e;}
.link-btn.code:hover{background:#000;}
.link-btn.data{background:var(--green);}
.link-btn.data:hover{background:#37a75d;box-shadow:0 10px 22px rgba(47,143,78,.3);}

/* ---------------- Sections ---------------- */
.section-omni{padding:3.6rem 1.25rem;}
.section-omni.alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.wrap{max-width:1080px;margin:0 auto;}
.wrap-narrow{max-width:820px;margin:0 auto;}
.section-kicker{
  text-align:center;text-transform:uppercase;letter-spacing:.2em;
  font-size:.76rem;font-weight:800;color:var(--orange);margin-bottom:.5rem;
}
.section-title{text-align:center;font-weight:800;color:var(--navy);font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:.5rem;}
.section-rule{width:66px;height:4px;border-radius:2px;margin:0 auto 2.2rem;background:linear-gradient(90deg,var(--blue),var(--orange));}

.abstract-text{font-size:1.09rem;line-height:1.85;text-align:justify;color:#2b3846;}
.abstract-text b,.abstract-text strong{color:var(--navy);}

/* ---------------- Figures ---------------- */
.figure-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.1rem;box-shadow:var(--shadow);
}
.figure-card img{display:block;margin:0 auto;width:100%;height:auto;border-radius:8px;}
.figure-caption{color:var(--muted);font-size:.94rem;line-height:1.6;margin-top:1rem;text-align:center;max-width:900px;margin-left:auto;margin-right:auto;}
.figure-caption b{color:var(--ink);}

/* ---------------- Idea / contribution cards ---------------- */
.idea-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.2rem;margin-top:1.9rem;}
.idea{
  background:#fff;border:1px solid var(--line);border-top:4px solid var(--blue);
  border-radius:14px;padding:1.4rem 1.4rem;box-shadow:var(--shadow-sm);
  transition:transform .15s ease,box-shadow .15s ease;
}
.idea:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.idea .ic{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;color:#fff;margin-bottom:.9rem;background:var(--blue);}
.idea:nth-child(2){border-top-color:var(--orange);}
.idea:nth-child(2) .ic{background:var(--orange);}
.idea:nth-child(3){border-top-color:var(--green);}
.idea:nth-child(3) .ic{background:var(--green);}
.idea h4{font-weight:700;color:var(--navy);margin-bottom:.5rem;font-size:1.12rem;}
.idea p{color:#41505f;font-size:.97rem;line-height:1.65;}

/* ---------------- Stat cards ---------------- */
.stat-row{display:flex;flex-wrap:wrap;gap:1.1rem;justify-content:center;margin:0 auto 2.4rem;max-width:900px;}
.stat-card{
  flex:1 1 190px;max-width:230px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:1.4rem 1rem;text-align:center;box-shadow:var(--shadow-sm);
}
.stat-num{font-size:2.3rem;font-weight:800;color:var(--blue);line-height:1;}
.stat-num .unit{font-size:1rem;color:var(--muted);font-weight:600;}
.stat-card.accent .stat-num{color:var(--orange);}
.stat-label{color:var(--muted);font-size:.92rem;margin-top:.55rem;line-height:1.4;}

/* ---------------- Results table ---------------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;}
table.results{width:100%;border-collapse:collapse;font-size:.85rem;min-width:820px;}
table.results thead th{background:var(--navy);color:#fff;font-weight:600;padding:.62rem .5rem;text-align:center;border-bottom:0;}
table.results thead tr.sub th{background:#1b3f6e;font-weight:500;font-size:.8rem;padding:.45rem .5rem;}
table.results td{padding:.44rem .55rem;text-align:center;border-bottom:1px solid #eef2f6;color:#37444f;white-space:nowrap;}
table.results td.model{text-align:left;font-weight:500;color:#26303a;}
table.results tr.group td{background:#eaf1f8;color:var(--navy);font-weight:700;text-align:left;font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;}
table.results tbody tr:hover{background:#f4f8fc;}
table.results tr.ours{background:linear-gradient(90deg,rgba(232,121,43,.12),rgba(43,108,176,.09));}
table.results tr.ours:hover{background:linear-gradient(90deg,rgba(232,121,43,.17),rgba(43,108,176,.13));}
table.results tr.ours td{font-weight:700;color:var(--navy);}
table.results tr.ours td.model{color:var(--orange);}
table.results td.best{font-weight:800;color:var(--orange);}
.table-note{color:var(--muted);font-size:.86rem;margin-top:.9rem;text-align:center;}

/* small ablation table */
table.mini{width:100%;max-width:640px;margin:1.4rem auto 0;border-collapse:collapse;font-size:.92rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);}
table.mini th{background:var(--navy);color:#fff;font-weight:600;padding:.6rem .8rem;font-family:'Google Sans';}
table.mini td{padding:.55rem .8rem;text-align:center;border-bottom:1px solid #eef2f6;color:#37444f;}
table.mini td.name{text-align:left;font-weight:600;color:#26303a;}
table.mini tr.hl td{background:rgba(43,108,176,.06);color:var(--navy);font-weight:700;}
table.mini .up{color:var(--green);font-weight:700;font-size:.82rem;}
table.mini .down{color:#c0392b;font-weight:700;font-size:.82rem;}

/* ---------------- BibTeX ---------------- */
.bibtex-card{position:relative;background:var(--navy-deep);border-radius:var(--radius);padding:1.5rem 1.6rem;box-shadow:var(--shadow);overflow-x:auto;}
.bibtex-card pre{margin:0;background:transparent;color:#d7e4f5;font-family:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;font-size:.86rem;line-height:1.55;white-space:pre;}
.copy-btn{position:absolute;top:.85rem;right:.85rem;background:rgba(255,255,255,.12);color:#eaf1fb;border:1px solid rgba(255,255,255,.2);
  border-radius:8px;padding:.32rem .7rem;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s ease;}
.copy-btn:hover{background:rgba(255,255,255,.22);}

/* ---------------- Footer ---------------- */
.footer-omni{background:var(--navy-deep);color:#9db4d0;padding:2.6rem 1.25rem;text-align:center;font-size:.92rem;line-height:1.7;}
.footer-omni a{color:#cfe0f5;font-weight:600;}
.footer-omni a:hover{color:#fff;}
.footer-omni .brand{font-family:'Google Sans';font-weight:800;color:#fff;font-size:1.1rem;}

/* utility */
.mt-1{margin-top:1rem;}.mt-2{margin-top:2rem;}.center{text-align:center;}
.is-hidden-mobile{}
@media(max-width:768px){.is-hidden-mobile{display:none;}}