/* ==========================================================================
   BCRG - Biomass Conversion Research Group
   Campus Modern theme, 2026. Self-contained: no Bootstrap dependency.
   ========================================================================== */

:root{
  --navy:#0f2f4a; --navy-2:#16405f; --leaf:#2f8f4e; --leaf-2:#49b06a; --gold:#c98a12;
  --ink:#132133; --body:#4d5b6b; --muted:#7d8a99; --line:#e3e9ef; --card:#ffffff;
  --bg:#f4f7fa; --bg-soft:#eef3f8;
  --ease:cubic-bezier(.19,1,.22,1);
  --shadow:0 18px 40px rgba(15,47,74,.10);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--body);
  font:16px/1.65 'Source Sans 3','Segoe UI',Arial,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Archivo','Segoe UI',Arial,sans-serif;color:var(--ink);
  margin:0;letter-spacing:-.025em;line-height:1.1;font-weight:800}
a{color:var(--navy-2);text-decoration:none}
a:hover{color:var(--leaf);text-decoration:none}
img{display:block;max-width:100%;height:auto}
hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.bc-wrap{max-width:1220px;margin:0 auto;padding:0 28px}
.eyebrow{display:block;font-size:.72rem;font-weight:700;letter-spacing:.22em;
  text-transform:uppercase;color:var(--leaf)}
.clearfix::after,.fix::after{content:"";display:block;clear:both}

/* ---------- top bar ---------- */
.bc-topbar{background:var(--navy);color:#cfe0ed;font-size:.8rem}
.bc-topbar .bc-wrap{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  padding-top:9px;padding-bottom:9px}
.bc-topbar a{color:#cfe0ed}
.bc-topbar a:hover{color:#fff}

/* ---------- header ---------- */
.bc-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.bc-head .bc-wrap{display:flex;align-items:center;gap:18px;padding-top:14px;padding-bottom:14px}
.bc-brand{display:flex;align-items:center;gap:13px}
.bc-brand img{width:50px;flex:none}
.bc-brand b{display:block;font-family:'Archivo',Arial,sans-serif;font-size:1.1rem;
  color:var(--ink);letter-spacing:-.01em;line-height:1.15}
.bc-brand span{display:block;font-size:.78rem;color:var(--muted)}
.bc-nav{margin-left:auto;display:flex;align-items:center;gap:19px;flex-wrap:nowrap}
.bc-nav a{font-size:.92rem;font-weight:600;color:var(--ink);padding:6px 0;flex:none;white-space:nowrap;
  border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.bc-nav a:hover{color:var(--leaf)}
.bc-nav a.on{color:var(--leaf);border-bottom-color:var(--leaf)}
a.bc-cta{flex:none;padding:10px 20px;border-radius:10px;background:var(--leaf);color:#fff !important;
  font-weight:700;font-size:.86rem;border-bottom:0 !important;transition:background .2s,transform .2s}
a.bc-cta:hover{background:var(--navy);transform:translateY(-1px);color:#fff !important}
.bc-burger{display:none;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:9px;width:44px;height:40px;cursor:pointer;padding:0}
.bc-burger i{display:block;width:18px;height:2px;background:var(--ink);margin:3px auto;border-radius:2px}

/* ---------- page head (inner pages) ---------- */
.bc-phead{background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 60%,#1b5077 100%);
  color:#fff;padding:46px 0 42px;position:relative;overflow:hidden}
.bc-phead::after{content:"";position:absolute;right:-90px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(73,176,106,.34),transparent 65%)}
.bc-phead .bc-wrap{position:relative;z-index:2}
.bc-phead .crumbs{font-size:.82rem;color:#a9c6db;margin-bottom:10px}
.bc-phead .crumbs a{color:#d7e7f2}
.bc-phead h1{color:#fff;font-size:clamp(1.8rem,3.4vw,2.7rem)}
.bc-phead p{margin:12px 0 0;color:#c9dcea;max-width:70ch}

/* ---------- home hero ---------- */
.bc-hero{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);padding:54px 0 8px}
.bc-hero .split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.bc-hero h1{font-size:clamp(2.1rem,4.4vw,3.5rem);max-width:14ch}
.bc-hero h1 span{color:var(--leaf)}
.bc-hero p.lead{font-size:1.07rem;max-width:52ch;margin:18px 0 0}
.bc-acts{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.bc-btn{display:inline-block;padding:13px 26px;border-radius:10px;font-weight:700;font-size:.92rem;
  background:var(--navy);color:#fff !important;transition:transform .25s var(--ease),background .25s}
.bc-btn:hover{transform:translateY(-2px);background:var(--navy-2);color:#fff !important}
.bc-btn.line{background:#fff;border:1px solid var(--line);color:var(--ink) !important}
.bc-btn.line:hover{border-color:var(--leaf);color:var(--leaf) !important;background:#fff}
.bc-btn.leaf{background:var(--leaf)}
.bc-btn.leaf:hover{background:var(--leaf-2)}
.bc-shot{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 26px 60px rgba(15,47,74,.18)}
.bc-shot img{width:100%;height:400px;object-fit:cover}
.bc-shot .tag{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.95);
  border-radius:10px;padding:9px 16px;font-size:.82rem;font-weight:600;color:var(--ink)}

/* ---------- stat row ---------- */
.bc-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:28px 0 0}
.bc-stats div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.bc-stats b{display:block;font-family:'Archivo',Arial,sans-serif;font-size:1.75rem;
  color:var(--navy);letter-spacing:-.04em;line-height:1.15}
.bc-stats span{font-size:.84rem;color:var(--muted)}

/* ---------- sections ---------- */
.bc-sec{padding:64px 0}
.bc-sec.tight{padding:0 0 64px}
.bc-shead{text-align:center;max-width:64ch;margin:0 auto 36px}
.bc-shead h2{font-size:clamp(1.6rem,2.9vw,2.3rem);margin:10px 0 10px}
.bc-shead p{margin:0;color:var(--muted)}
.bc-lhead{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;justify-content:space-between;margin-bottom:28px}
.bc-lhead h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
.bc-lhead p{margin:0;color:var(--muted);font-size:.92rem}

/* ---------- cards ---------- */
.bc-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.bc-cards.two{grid-template-columns:repeat(2,1fr)}
.bc-cards.three{grid-template-columns:repeat(3,1fr)}
.bc-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 24px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.bc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcea}
.bc-ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  margin-bottom:15px;background:rgba(47,143,78,.10);color:var(--leaf)}
.bc-ico svg{width:24px;height:24px}
.bc-card h3{font-size:1.05rem;margin-bottom:8px}
.bc-card p{margin:0;font-size:.93rem}
.bc-card ul{margin:10px 0 0;padding-left:18px;font-size:.92rem}
.bc-card li{margin-bottom:5px}

/* ---------- project rows ---------- */
.bc-list{display:grid;gap:14px}
.bc-item{background:#fff;border:1px solid var(--line);border-left:4px solid var(--leaf);
  border-radius:12px;padding:20px 24px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center}
.bc-item.done{border-left-color:var(--muted)}
.bc-item h3{font-size:1rem;margin-bottom:5px;max-width:66ch}
.bc-item small{color:var(--muted);font-size:.86rem;display:block}
.bc-item .right{text-align:right}
.bc-amt{font-family:'Archivo',Arial,sans-serif;font-size:1.14rem;color:var(--navy);white-space:nowrap}
.bc-st{font-size:.73rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--leaf);white-space:nowrap}
.bc-st.d{color:var(--muted)}

/* ---------- team ---------- */
.bc-team{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.bc-team.five{grid-template-columns:repeat(5,1fr)}
.bc-person{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  text-align:center;padding-bottom:16px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.bc-person:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.bc-person img{width:100%;height:170px;object-fit:cover;object-position:top center;background:var(--bg-soft)}
.bc-person b{display:block;font-family:'Archivo',Arial,sans-serif;font-size:.92rem;
  color:var(--ink);margin-top:12px;padding:0 10px;line-height:1.3}
.bc-person span{display:block;font-size:.78rem;color:var(--muted);padding:0 10px;margin-top:3px}
.bc-person .ri{display:block;font-size:.78rem;color:var(--body);padding:10px 14px 0;text-align:left;
  border-top:1px solid var(--line);margin-top:12px}

/* scholar rows */
.bc-rows{display:grid;gap:12px}
.bc-row{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;
  display:grid;grid-template-columns:76px 1fr;gap:18px;align-items:center}
.bc-row img{width:76px;height:90px;object-fit:cover;object-position:top center;border-radius:8px;background:var(--bg-soft)}
.bc-row b{display:block;font-family:'Archivo',Arial,sans-serif;color:var(--ink);font-size:.98rem}
.bc-row span{font-size:.9rem;color:var(--body)}

/* ---------- news ---------- */
.bc-news{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.bc-ncard{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  display:grid;grid-template-columns:170px 1fr}
.bc-ncard img{width:100%;height:100%;min-height:150px;object-fit:cover;object-position:top center}
.bc-ncard img.doc{object-fit:contain;background:#fff;padding:10px;border-right:1px solid var(--line)}
.bc-ncard .b{padding:22px 24px}
.bc-ncard h3{font-size:1.04rem;margin-bottom:8px}
.bc-ncard p{margin:0;font-size:.92rem}
.bc-kicker{display:block;font-size:.74rem;color:var(--gold);font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;margin-bottom:7px}

/* ---------- partners ---------- */
.bc-partners{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.bc-partners a{background:#fff;border:1px solid var(--line);border-radius:14px;height:110px;
  display:flex;align-items:center;justify-content:center;padding:16px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.bc-partners a:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcea}
.bc-partners img{max-height:66px;max-width:100%;width:auto}

/* ---------- publications ---------- */
.bc-year{display:flex;align-items:center;gap:14px;margin:34px 0 14px}
.bc-sec > .bc-year:first-child{margin-top:0}
.bc-year b{font-family:'Archivo',Arial,sans-serif;font-size:1.15rem;color:var(--navy)}
.bc-year i{flex:1;height:1px;background:var(--line);display:block}
.bc-pubs{display:grid;gap:10px;counter-reset:pub}
.bc-pub{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px 16px 52px;
  position:relative;font-size:.94rem}
.bc-pub::before{counter-increment:pub;content:counter(pub);position:absolute;left:18px;top:16px;
  font-family:'Archivo',Arial,sans-serif;font-size:.82rem;color:var(--leaf);font-weight:700}
.bc-pub b{color:var(--ink);font-weight:600}
.bc-pub em{font-style:normal;color:var(--muted)}

/* ---------- gallery ---------- */
.bc-gal{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.bc-gal a{display:block;border-radius:14px;overflow:hidden;border:1px solid var(--line);
  background:var(--bg-soft);box-shadow:0 6px 18px rgba(15,47,74,.07)}
.bc-gal img{width:100%;height:190px;object-fit:cover;transition:transform .8s var(--ease)}
.bc-gal a:hover img{transform:scale(1.06)}

/* ---------- prose (generic content) ---------- */
.bc-prose{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px 38px}
.bc-prose h2{font-size:1.35rem;margin:30px 0 10px}
.bc-prose h2:first-child{margin-top:0}
.bc-prose h3{font-size:1.06rem;margin:22px 0 8px}
.bc-prose p{margin:0 0 14px}
.bc-prose ul,.bc-prose ol{margin:0 0 16px;padding-left:22px}
.bc-prose li{margin-bottom:6px}
.bc-prose ul ul{margin-top:6px}
.bc-two{display:grid;grid-template-columns:1fr 1fr;gap:22px}

/* ---------- sidebar (MasterPage1) ---------- */
.bc-side{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.bc-links{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px}
.bc-links h2{font-size:1.05rem;margin-bottom:12px}
.bc-links ul{list-style:none;margin:0;padding:0}
.bc-links li{border-top:1px solid var(--line)}
.bc-links li:first-child{border-top:0}
.bc-links a{display:block;padding:10px 0;font-size:.93rem;font-weight:600;color:var(--ink)}
.bc-links a:hover{color:var(--leaf)}

/* ---------- footer ---------- */
.bc-foot{background:var(--navy);color:#c6d8e6;padding:50px 0 24px;margin-top:20px}
.bc-foot h4{font-family:'Archivo',Arial,sans-serif;font-size:.8rem;letter-spacing:.16em;
  text-transform:uppercase;color:#7fd39a;margin:0 0 13px}
.bc-fg{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;font-size:.92rem}
.bc-foot p{margin:0 0 8px}
.bc-foot a{color:#c6d8e6}
.bc-foot a:hover{color:#7fd39a}
.bc-foot ul{list-style:none;margin:0;padding:0}
.bc-foot li{margin-bottom:6px}
.bc-fend{margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  font-size:.8rem;color:#90a9bc;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .bc-cards{grid-template-columns:repeat(2,1fr)}
  .bc-team,.bc-team.five{grid-template-columns:repeat(3,1fr)}
  .bc-gal{grid-template-columns:repeat(3,1fr)}
  .bc-stats{grid-template-columns:repeat(2,1fr)}
  .bc-hero .split{grid-template-columns:1fr;gap:28px}
  .bc-shot img{height:320px}
  .bc-side{grid-template-columns:1fr}
  .bc-fg{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .bc-burger{display:block}
  .bc-nav{position:absolute;left:0;right:0;top:100%;margin:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 28px 18px;display:none}
  .bc-nav.open{display:flex}
  .bc-nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  .bc-nav a.on{border-bottom-color:var(--line)}
  a.bc-cta{text-align:center;margin-top:12px;border-radius:10px;padding:12px 20px}
  .bc-news{grid-template-columns:1fr}
  .bc-two{grid-template-columns:1fr}
}
@media (max-width:620px){
  .bc-wrap{padding:0 20px}
  .bc-nav{padding-left:20px;padding-right:20px}
  .bc-cards,.bc-cards.two,.bc-cards.three{grid-template-columns:1fr}
  .bc-team,.bc-team.five{grid-template-columns:repeat(2,1fr)}
  .bc-gal{grid-template-columns:repeat(2,1fr)}
  .bc-gal img{height:150px}
  .bc-stats{grid-template-columns:1fr}
  .bc-item{grid-template-columns:1fr}
  .bc-item .right{text-align:left}
  .bc-ncard{grid-template-columns:1fr}
  .bc-ncard img{height:190px}
  .bc-prose{padding:24px 22px}
  .bc-fg{grid-template-columns:1fr;gap:26px}
  .bc-shot img{height:240px}
}