/* ============================================================
   SCIENCE BULLETIN — Premium Academic Design System
   ============================================================ */

:root{
  /* Palette */
  --ink:#0B1728;
  --ink-2:#132540;
  --ink-3:#1D3557;
  --gold:#B08D57;
  --gold-2:#D4B77A;
  --gold-soft:rgba(176,141,87,.12);
  --paper:#FBFAF7;
  --paper-2:#F4F1EA;
  --white:#fff;
  --line:#E5E0D6;
  --line-2:#EEEAE1;
  --text:#1A2434;
  --muted:#6B7385;
  --muted-2:#98A0B0;

  /* Type */
  --serif:"Playfair Display","Lora",Georgia,"Times New Roman",serif;
  --sans:"Inter","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;

  /* Metrics */
  --wrap:1240px;
  --wrap-wide:1460px;
  --r:2px;
  --r-lg:4px;
  --shadow-s:0 1px 2px rgba(11,23,40,.06),0 4px 16px rgba(11,23,40,.05);
  --shadow-m:0 4px 12px rgba(11,23,40,.08),0 24px 60px rgba(11,23,40,.10);
  --shadow-l:0 30px 90px rgba(11,23,40,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --head-h:112px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;font-family:var(--sans);color:var(--text);background:var(--paper);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
  font-feature-settings:"kern","liga","tnum";
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,4.2vw,3.6rem)}
h2{font-size:clamp(1.6rem,2.8vw,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.1em}
::selection{background:var(--gold);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ---------- Ornaments ---------- */
.eyebrow{
  font-family:var(--sans);font-size:.68rem;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold);display:flex;align-items:center;gap:12px;margin-bottom:18px;
}
.eyebrow::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent);max-width:120px}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{display:none}
.eyebrow.center::before{content:"";width:34px;height:1px;background:var(--gold);opacity:.5}
.rule{height:1px;background:var(--line);border:0;margin:0}
.gold-bar{width:52px;height:2px;background:var(--gold);margin:0 0 26px}
.gold-bar.center{margin-left:auto;margin-right:auto}

/* ============================================================
   TOP BAR
   ============================================================ */
.topbar{background:var(--ink);color:rgba(255,255,255,.72);font-size:.76rem;letter-spacing:.03em}
.topbar .wrap,.site-head .wrap{max-width:var(--wrap-wide)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:40px;gap:20px}
.topbar-left{display:flex;align-items:center;gap:22px;min-width:0}
.topbar-left span{display:flex;align-items:center;gap:7px;white-space:nowrap}
.topbar-left svg{width:13px;height:13px;stroke:var(--gold-2);flex:0 0 auto}
.topbar-right{display:flex;align-items:center;gap:18px}
.issn{color:var(--gold-2);font-weight:500;letter-spacing:.08em}

/* ============================================================
   HEADER
   ============================================================ */
.site-head{
  position:sticky;top:0;z-index:900;background:rgba(251,250,247,.94);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-head.stuck{box-shadow:0 1px 0 var(--line),0 8px 30px rgba(11,23,40,.07)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;min-width:0}

/* Brand */
.brand{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.brand-mark{
  width:44px;height:44px;flex:0 0 auto;border:1px solid var(--gold);
  display:grid;place-items:center;position:relative;background:var(--ink);
}
.brand-mark::after{content:"";position:absolute;inset:4px;border:1px solid rgba(212,183,122,.35)}
.brand-mark span{font-family:var(--serif);font-size:1.05rem;color:var(--gold-2);letter-spacing:.02em;line-height:1}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--serif);font-size:1.22rem;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.brand-sub{font-size:.6rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-top:3px}

/* ---------- NAV ---------- */
.nav{display:flex;align-items:center;gap:0;height:100%;min-width:0}
.nav-item{position:relative;height:76px;display:flex;align-items:center}
.nav-link{
  display:flex;align-items:center;gap:5px;padding:0 12px;height:100%;
  font-size:.79rem;font-weight:500;letter-spacing:.03em;text-transform:uppercase;
  color:var(--ink-2);position:relative;transition:color .25s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:22px;height:1.5px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .38s var(--ease);
}
.nav-item:hover>.nav-link::after,.nav-link.active::after{transform:scaleX(1)}
.nav-item:hover>.nav-link,.nav-link.active{color:var(--ink)}
.nav-link .caret{width:9px;height:9px;stroke:currentColor;stroke-width:2.2;fill:none;opacity:.5;transition:transform .3s var(--ease)}
.nav-item:hover .caret{transform:rotate(180deg);opacity:1}

/* Dropdown — the highlighted sub-menu */
.dropdown{
  position:absolute;top:76px;left:50%;transform:translate(-50%,12px);
  min-width:290px;background:var(--white);border:1px solid var(--line);
  border-top:2px solid var(--gold);box-shadow:var(--shadow-m);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  padding:10px;
}
.dropdown.right{left:auto;right:0;transform:translate(0,12px)}
.nav-item:hover>.dropdown{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.nav-item:hover>.dropdown.right{transform:translate(0,0)}
.dd-link{
  display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:var(--r);
  transition:background .22s var(--ease),padding .22s var(--ease);position:relative;
}
.dd-link::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;background:var(--gold);
  transform:scaleY(0);transition:transform .26s var(--ease);
}
.dd-link:hover{background:var(--paper-2);padding-left:20px}
.dd-link:hover::before{transform:scaleY(1)}
.dd-num{
  font-family:var(--serif);font-size:.72rem;color:var(--gold);padding-top:2px;
  min-width:16px;letter-spacing:.04em;
}
.dd-t{font-size:.9rem;font-weight:600;color:var(--ink);letter-spacing:.01em;display:block}
.dd-d{font-size:.76rem;color:var(--muted);line-height:1.5;display:block;margin-top:2px}
.dd-sep{height:1px;background:var(--line-2);margin:8px 14px}
.dd-foot{padding:12px 14px 6px;font-size:.72rem;color:var(--muted-2);letter-spacing:.1em;text-transform:uppercase}

/* ---------- Head actions ---------- */
.head-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);
  background:var(--white);transition:all .26s var(--ease);color:var(--ink-2);
}
.icon-btn:hover{border-color:var(--gold);color:var(--gold);box-shadow:var(--shadow-s)}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;stroke-width:2;fill:none}

/* Language switch */
.lang{position:relative}
.lang-btn{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 13px;border:1px solid var(--line);
  background:var(--white);font-size:.78rem;font-weight:600;letter-spacing:.09em;color:var(--ink-2);
  transition:all .26s var(--ease);
}
.lang-btn:hover{border-color:var(--gold);color:var(--gold)}
.lang-btn svg{width:9px;height:9px;stroke:currentColor;stroke-width:2.4;fill:none;opacity:.6}
.lang-menu{
  position:absolute;top:calc(100% + 8px);right:0;min-width:184px;background:var(--white);
  border:1px solid var(--line);border-top:2px solid var(--gold);box-shadow:var(--shadow-m);padding:6px;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .26s var(--ease);z-index:60;
}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-menu a{
  display:flex;align-items:center;gap:11px;padding:10px 13px;font-size:.85rem;color:var(--ink-2);
  transition:background .2s var(--ease);
}
.lang-menu a:hover{background:var(--paper-2)}
.lang-menu a.on{color:var(--gold);font-weight:600}
.lang-code{font-size:.66rem;font-weight:700;letter-spacing:.1em;color:var(--muted-2);min-width:22px}
.lang-menu a.on .lang-code{color:var(--gold)}

.btn-auth{
  height:40px;padding:0 18px;background:var(--ink);color:#fff;font-size:.76rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;transition:all .3s var(--ease);
  display:flex;align-items:center;gap:8px;border:1px solid var(--ink);white-space:nowrap;
}
.btn-auth svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none;flex:0 0 auto}
.btn-auth:hover{background:var(--gold);border-color:var(--gold);box-shadow:0 8px 24px rgba(176,141,87,.32)}

/* Burger — must stay above the sliding nav panel so it can close it */
.burger{display:none;position:relative;z-index:1010}
.burger span{display:block;width:19px;height:1.6px;background:currentColor;margin:4px 0;transition:.3s var(--ease)}
body.nav-open .burger{background:var(--ink);border-color:var(--ink);color:#fff}
body.nav-open .burger span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* Backdrop behind the mobile nav panel */
.nav-ov{
  position:fixed;inset:0;background:rgba(11,23,40,.5);
  opacity:0;visibility:hidden;transition:all .4s var(--ease);z-index:890;
}
.nav-ov.open{opacity:1;visibility:visible}

/* ============================================================
   SEARCH PANEL (slides in from the LEFT)
   ============================================================ */
.search-ov{
  position:fixed;inset:0;background:rgba(11,23,40,.5);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:all .4s var(--ease);z-index:1000;
}
.search-ov.open{opacity:1;visibility:visible}
.search-panel{
  position:fixed;top:0;left:0;bottom:0;width:min(440px,90vw);background:var(--white);
  transform:translateX(-102%);transition:transform .5s var(--ease);z-index:1001;
  display:flex;flex-direction:column;box-shadow:var(--shadow-l);border-right:2px solid var(--gold);
}
.search-panel.open{transform:translateX(0)}
.sp-head{padding:26px 30px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.sp-title{font-family:var(--serif);font-size:1.3rem;color:var(--ink);margin:0}
.sp-close{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);transition:all .25s var(--ease)}
.sp-close:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:rotate(90deg)}
.sp-close svg{width:15px;height:15px;stroke:currentColor;stroke-width:2}
.sp-body{padding:26px 30px;overflow-y:auto;flex:1}
.sp-field{position:relative;margin-bottom:20px}
.sp-field svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:var(--muted-2);stroke-width:2;fill:none}
.sp-input{
  width:100%;height:54px;padding:0 16px 0 46px;border:1px solid var(--line);background:var(--paper);
  font-size:.95rem;transition:all .26s var(--ease);
}
.sp-input:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px var(--gold-soft)}
.sp-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{
  padding:7px 14px;border:1px solid var(--line);font-size:.75rem;color:var(--muted);
  transition:all .24s var(--ease);letter-spacing:.03em;
}
.chip:hover,.chip.on{border-color:var(--gold);color:var(--gold);background:var(--gold-soft)}
.sp-label{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2);margin-bottom:14px}
.sp-list a{
  display:block;padding:13px 0;border-bottom:1px solid var(--line-2);font-size:.88rem;color:var(--ink-2);
  transition:all .24s var(--ease);
}
.sp-list a:hover{color:var(--gold);padding-left:8px}
.sp-list a small{display:block;color:var(--muted-2);font-size:.74rem;margin-top:2px}
.sp-foot{padding:20px 30px;border-top:1px solid var(--line);background:var(--paper);font-size:.76rem;color:var(--muted)}

/* ============================================================
   AUTH MODAL
   ============================================================ */
.modal-ov{
  position:fixed;inset:0;background:rgba(11,23,40,.6);backdrop-filter:blur(6px);
  display:grid;place-items:center;padding:24px;opacity:0;visibility:hidden;
  transition:all .35s var(--ease);z-index:1100;overflow-y:auto;
}
.modal-ov.open{opacity:1;visibility:visible}
.modal{
  width:min(460px,100%);background:var(--white);border-top:3px solid var(--gold);
  box-shadow:var(--shadow-l);transform:translateY(24px) scale(.97);
  transition:transform .4s var(--ease);margin:auto;
}
.modal-ov.open .modal{transform:none}
.modal-head{padding:34px 38px 0;text-align:center;position:relative}
.modal-close{position:absolute;top:16px;right:16px;width:32px;height:32px;display:grid;place-items:center;color:var(--muted);transition:all .25s var(--ease)}
.modal-close:hover{color:var(--ink);transform:rotate(90deg)}
.modal-close svg{width:15px;height:15px;stroke:currentColor;stroke-width:2;fill:none}
.modal h3{font-size:1.6rem;margin-bottom:6px}
.modal-head p{font-size:.85rem;color:var(--muted);margin:0}
.tabs{display:flex;margin:26px 38px 0;border-bottom:1px solid var(--line)}
.tab{
  flex:1;padding:12px 0;font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);position:relative;transition:color .26s var(--ease);
}
.tab::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--gold);transform:scaleX(0);transition:transform .32s var(--ease)}
.tab.on{color:var(--ink)}
.tab.on::after{transform:scaleX(1)}
.modal-body{padding:28px 38px 34px}
.pane{display:none}
.pane.on{display:block;animation:fade .35s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.field{margin-bottom:16px}
.field label{display:block;font-size:.7rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);background:var(--paper);
  font-size:.9rem;transition:all .26s var(--ease);
}
.field textarea{min-height:130px;resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px var(--gold-soft)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;align-items:flex-start;gap:9px;font-size:.78rem;color:var(--muted);margin:16px 0 20px;line-height:1.55}
.check input{width:15px;height:15px;margin-top:2px;accent-color:var(--gold);flex:0 0 auto}
.check a{color:var(--gold);border-bottom:1px solid rgba(176,141,87,.4)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;font-size:.79rem;font-weight:600;letter-spacing:.11em;text-transform:uppercase;
  transition:all .32s var(--ease);border:1px solid transparent;
}
.btn svg{width:15px;height:15px;stroke:currentColor;stroke-width:2;fill:none;transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-primary:hover{background:var(--gold);border-color:var(--gold);box-shadow:0 12px 30px rgba(176,141,87,.3)}
.btn-gold{background:var(--gold);color:#fff;border-color:var(--gold)}
.btn-gold:hover{background:var(--ink);border-color:var(--ink)}
.btn-ghost{border-color:var(--line);color:var(--ink-2);background:#fff}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-light{border-color:rgba(255,255,255,.3);color:#fff}
.btn-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-full{width:100%}
.modal-alt{text-align:center;font-size:.8rem;color:var(--muted);margin-top:18px}
.modal-alt button{color:var(--gold);font-weight:600}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  padding:104px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 78% 18%,rgba(176,141,87,.20),transparent 62%),
    radial-gradient(700px 420px at 8% 88%,rgba(29,53,87,.65),transparent 60%);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000,transparent 78%);
  mask-image:radial-gradient(ellipse at 50% 40%,#000,transparent 78%);
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
.hero .eyebrow{color:var(--gold-2)}
.hero .eyebrow::after{background:linear-gradient(90deg,rgba(212,183,122,.45),transparent)}
.hero h1{color:#fff;margin-bottom:22px}
.hero h1 em{font-style:italic;color:var(--gold-2)}
.hero-lead{font-size:1.06rem;color:rgba(255,255,255,.74);max-width:56ch;margin-bottom:34px;line-height:1.8}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap;padding-top:30px;border-top:1px solid rgba(255,255,255,.13)}
.stat-n{font-family:var(--serif);font-size:2.1rem;color:var(--gold-2);line-height:1}
.stat-l{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-top:8px}

/* Hero card */
.hero-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(10px);padding:34px;position:relative;
}
.hero-card::before{content:"";position:absolute;top:-1px;left:-1px;width:44px;height:44px;border-top:2px solid var(--gold);border-left:2px solid var(--gold)}
.hero-card::after{content:"";position:absolute;bottom:-1px;right:-1px;width:44px;height:44px;border-bottom:2px solid var(--gold);border-right:2px solid var(--gold)}
.hc-tag{font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-2);margin-bottom:14px}
.hero-card h3{font-size:1.35rem;color:#fff;margin-bottom:10px;line-height:1.35}
.hero-card p{font-size:.85rem;color:rgba(255,255,255,.62);margin-bottom:22px}
.hc-meta{display:flex;flex-direction:column;gap:11px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12)}
.hc-row{display:flex;justify-content:space-between;font-size:.79rem}
.hc-row span:first-child{color:rgba(255,255,255,.45)}
.hc-row span:last-child{color:#fff;font-weight:500}

/* ============================================================
   SECTIONS
   ============================================================ */
.section{padding:96px 0}
.section.tight{padding:70px 0}
.section.alt{background:var(--paper-2)}
.section.dark{background:var(--ink);color:#fff}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark p{color:rgba(255,255,255,.68)}
.sec-head{max-width:660px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head p{color:var(--muted);font-size:1.02rem;margin:0}
.sec-bar{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:52px;flex-wrap:wrap}
.sec-bar .sec-head{margin-bottom:0}
.link-more{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);border-bottom:1px solid var(--gold);padding-bottom:5px;transition:gap .3s var(--ease)}
.link-more:hover{gap:15px;color:var(--gold)}
.link-more svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none}

/* Journal cards */
.jgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:26px}
.jcard{
  background:var(--white);border:1px solid var(--line);transition:all .4s var(--ease);
  display:flex;flex-direction:column;position:relative;overflow:hidden;
}
.jcard::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.jcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);border-color:var(--line-2)}
.jcard:hover::before{transform:scaleX(1)}
.jcover{
  height:170px;background:linear-gradient(140deg,var(--ink) 0%,var(--ink-3) 100%);
  display:grid;place-items:center;position:relative;overflow:hidden;
}
.jcover::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:26px 26px;
}
.jcover-in{position:relative;z-index:2;text-align:center;padding:18px}
.jcover-in .abbr{font-family:var(--serif);font-size:2.2rem;color:var(--gold-2);letter-spacing:.04em;line-height:1}
.jcover-in .issn2{font-size:.62rem;letter-spacing:.18em;color:rgba(255,255,255,.5);margin-top:10px;text-transform:uppercase}
.jbody{padding:26px;flex:1;display:flex;flex-direction:column}
.jbadge{display:inline-block;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);background:var(--gold-soft);padding:5px 10px;margin-bottom:14px;align-self:flex-start}
.jcard h3{font-size:1.12rem;margin-bottom:9px;line-height:1.4}
.jcard p{font-size:.85rem;color:var(--muted);margin-bottom:18px;flex:1}
.jmeta{display:flex;gap:18px;font-size:.72rem;color:var(--muted-2);padding-top:16px;border-top:1px solid var(--line-2);letter-spacing:.04em}

/* Feature / value grid */
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.fcell{background:var(--paper);padding:38px 32px;transition:background .35s var(--ease)}
.fcell:hover{background:var(--white)}
.section.alt .fcell{background:var(--paper-2)}
.section.alt .fcell:hover{background:var(--white)}
.fnum{font-family:var(--serif);font-size:.8rem;color:var(--gold);letter-spacing:.14em;margin-bottom:18px}
.ficon{width:38px;height:38px;stroke:var(--gold);stroke-width:1.3;fill:none;margin-bottom:20px}
.fcell h3{font-size:1.06rem;margin-bottom:10px}
.fcell p{font-size:.86rem;color:var(--muted);margin:0}

/* Article list */
.alist{border-top:1px solid var(--line)}
.arow{
  display:grid;grid-template-columns:104px 1fr auto;gap:30px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);transition:all .35s var(--ease);
}
.arow:hover{padding-left:14px;background:linear-gradient(90deg,var(--gold-soft),transparent 60%)}
.adate{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2)}
.arow h3{font-size:1.02rem;margin-bottom:6px;line-height:1.45;transition:color .3s var(--ease)}
.arow:hover h3{color:var(--gold)}
.aauth{font-size:.8rem;color:var(--muted);font-style:italic;margin:0}
.atype{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);white-space:nowrap;border:1px solid var(--line);padding:6px 12px}

/* Stats strip */
.strip{background:var(--ink);color:#fff;padding:66px 0}
.strip-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:rgba(255,255,255,.1)}
.strip-cell{background:var(--ink);padding:26px 20px;text-align:center}
.strip-n{font-family:var(--serif);font-size:2.6rem;color:var(--gold-2);line-height:1}
.strip-l{font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.52);margin-top:11px}

/* Indexing logos */
.idx{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.idx span{
  padding:13px 24px;border:1px solid var(--line);font-size:.78rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--muted);background:var(--white);transition:all .3s var(--ease);
}
.idx span:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-3px);box-shadow:var(--shadow-s)}

/* CTA band */
.cta{
  background:var(--ink);color:#fff;padding:82px 0;text-align:center;position:relative;overflow:hidden;
}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 340px at 50% 0%,rgba(176,141,87,.22),transparent 68%)}
.cta .wrap{position:relative;z-index:2}
.cta h2{color:#fff;max-width:20ch;margin:0 auto 16px}
.cta p{color:rgba(255,255,255,.66);max-width:60ch;margin:0 auto 32px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.phead{
  background:var(--ink);color:#fff;padding:74px 0 62px;position:relative;overflow:hidden;
}
.phead::before{content:"";position:absolute;inset:0;background:radial-gradient(760px 380px at 82% 12%,rgba(176,141,87,.18),transparent 62%)}
.phead::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:58px 58px;
}
.phead .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:9px;font-size:.74rem;color:rgba(255,255,255,.5);margin-bottom:22px;letter-spacing:.05em}
.crumb a:hover{color:var(--gold-2)}
.crumb span{color:var(--gold-2)}
.phead h1{color:#fff;margin-bottom:14px;max-width:20ch}
.phead p{color:rgba(255,255,255,.68);max-width:64ch;font-size:1.02rem;margin:0}

/* ============================================================
   CONTENT BLOCKS
   ============================================================ */
.cols{display:grid;grid-template-columns:1fr 320px;gap:64px;align-items:start}
.prose{max-width:74ch}
.prose h2{margin-top:52px}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:34px;font-size:1.15rem}
.prose p{color:var(--text);opacity:.9}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1.3em;color:var(--text);opacity:.9}
.prose li{margin-bottom:9px}
.prose ul li::marker{color:var(--gold)}
.prose ol li::marker{color:var(--gold);font-weight:600}
.lead{font-size:1.13rem;line-height:1.85;color:var(--ink-2)}
.quote{
  border-left:2px solid var(--gold);padding:6px 0 6px 26px;margin:34px 0;
  font-family:var(--serif);font-size:1.2rem;font-style:italic;color:var(--ink-2);line-height:1.6;
}
.note{background:var(--gold-soft);border-left:2px solid var(--gold);padding:22px 26px;margin:30px 0}
.note p:last-child{margin:0}
.note strong{color:var(--ink)}

.side{position:sticky;top:100px}
.side-box{background:var(--white);border:1px solid var(--line);border-top:2px solid var(--gold);padding:26px;margin-bottom:20px}
.side-box h4{font-family:var(--serif);font-size:1.05rem;margin:0 0 16px;color:var(--ink)}
.side-box ul{list-style:none;padding:0;margin:0}
.side-box li{border-bottom:1px solid var(--line-2)}
.side-box li:last-child{border:0}
.side-box a{display:block;padding:11px 0;font-size:.85rem;color:var(--ink-2);transition:all .25s var(--ease)}
.side-box a:hover{color:var(--gold);padding-left:7px}
.side-box p{font-size:.85rem;color:var(--muted);margin:0 0 14px}

/* Table */
.tbl{width:100%;border-collapse:collapse;font-size:.88rem;margin:26px 0}
.tbl th{
  text-align:left;padding:13px 16px;background:var(--ink);color:#fff;font-size:.68rem;
  letter-spacing:.14em;text-transform:uppercase;font-weight:600;
}
.tbl td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:nth-child(even) td{background:var(--paper-2)}
.tbl tr:hover td{background:var(--gold-soft)}

/* Editorial board */
.egrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:24px}
.ecard{background:var(--white);border:1px solid var(--line);padding:28px;transition:all .38s var(--ease);position:relative}
.ecard::after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);transform:scaleY(0);transform-origin:top;transition:transform .4s var(--ease)}
.ecard:hover{box-shadow:var(--shadow-m);transform:translateY(-4px)}
.ecard:hover::after{transform:scaleY(1)}
.eav{
  width:62px;height:62px;border-radius:50%;background:linear-gradient(140deg,var(--ink),var(--ink-3));
  display:grid;place-items:center;font-family:var(--serif);font-size:1.2rem;color:var(--gold-2);margin-bottom:18px;
}
.ecard h3{font-size:1.02rem;margin-bottom:4px}
.erole{font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.ecard p{font-size:.83rem;color:var(--muted);margin:0 0 14px}
.eorcid{font-size:.72rem;color:var(--muted-2);letter-spacing:.05em;padding-top:13px;border-top:1px solid var(--line-2)}

/* Archive */
.years{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:44px}
.year{padding:9px 20px;border:1px solid var(--line);font-size:.82rem;color:var(--muted);background:var(--white);transition:all .28s var(--ease);letter-spacing:.05em}
.year:hover,.year.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.igrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:22px}
.icard{background:var(--white);border:1px solid var(--line);padding:26px;transition:all .35s var(--ease);text-align:center}
.icard:hover{border-color:var(--gold);transform:translateY(-5px);box-shadow:var(--shadow-m)}
.ivol{font-family:var(--serif);font-size:1.5rem;color:var(--ink);margin-bottom:6px}
.iss{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.icard p{font-size:.78rem;color:var(--muted);margin:0}
.ipdf{display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);border-bottom:1px solid var(--gold);padding-bottom:3px}

/* Scopes */
.sgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.scell{background:var(--white);padding:34px 30px;transition:all .35s var(--ease);position:relative}
.scell:hover{background:var(--ink);color:#fff}
.scell:hover h3,.scell:hover .snum{color:var(--gold-2)}
.scell:hover p,.scell:hover li{color:rgba(255,255,255,.66)}
.snum{font-family:var(--serif);font-size:1.7rem;color:var(--gold);opacity:.5;margin-bottom:14px;transition:color .35s var(--ease)}
.scell h3{font-size:1.08rem;margin-bottom:10px;transition:color .35s var(--ease)}
.scell ul{list-style:none;padding:0;margin:14px 0 0}
.scell li{font-size:.82rem;color:var(--muted);padding:5px 0 5px 16px;position:relative;transition:color .35s var(--ease)}
.scell li::before{content:"—";position:absolute;left:0;color:var(--gold)}

/* Steps */
.steps{counter-reset:s;display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.step{background:var(--white);padding:30px 34px;display:grid;grid-template-columns:60px 1fr;gap:22px;align-items:start}
.step::before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  font-family:var(--serif);font-size:1.6rem;color:var(--gold);line-height:1;
}
.step h3{font-size:1.05rem;margin-bottom:7px}
.step p{font-size:.87rem;color:var(--muted);margin:0}

/* Contact */
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cinfo{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.crow{background:var(--white);padding:26px 28px;display:grid;grid-template-columns:40px 1fr;gap:18px;align-items:start}
.crow svg{width:20px;height:20px;stroke:var(--gold);stroke-width:1.5;fill:none;margin-top:3px}
.crow h4{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin:0 0 7px;font-family:var(--sans);font-weight:600}
.crow p{margin:0;font-size:.92rem;color:var(--ink-2);line-height:1.6}
.form-box{background:var(--white);border:1px solid var(--line);border-top:2px solid var(--gold);padding:36px}

/* FAQ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:22px 0;text-align:left;font-family:var(--serif);font-size:1.03rem;color:var(--ink);transition:color .28s var(--ease)}
.faq-q:hover{color:var(--gold)}
.faq-q svg{width:16px;height:16px;stroke:var(--gold);stroke-width:2;fill:none;flex:0 0 auto;transition:transform .35s var(--ease)}
.faq-item.open .faq-q svg{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a p{padding:0 0 22px;font-size:.9rem;color:var(--muted);margin:0;max-width:80ch}

/* ============================================================
   FOOTER
   ============================================================ */
.site-foot{background:var(--ink);color:rgba(255,255,255,.62);padding:74px 0 0;font-size:.87rem}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:52px;padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand .brand-mark{margin-bottom:20px}
.foot-brand p{font-size:.86rem;line-height:1.8;max-width:36ch;color:rgba(255,255,255,.55)}
.foot-issn{font-size:.74rem;letter-spacing:.09em;color:var(--gold-2);margin-top:16px}
.foot-col h4{
  font-family:var(--sans);font-size:.68rem;font-weight:600;letter-spacing:.19em;text-transform:uppercase;
  color:#fff;margin:0 0 20px;
}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:11px}
.foot-col a{color:rgba(255,255,255,.58);transition:all .26s var(--ease);display:inline-block;font-size:.85rem}
.foot-col a:hover{color:var(--gold-2);transform:translateX(4px)}
.foot-social{display:flex;gap:10px;margin-top:22px}
.foot-social a{width:36px;height:36px;border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;transition:all .3s var(--ease)}
.foot-social a:hover{border-color:var(--gold);background:var(--gold);transform:translateY(-3px)}
.foot-social svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.7;fill:none}
.foot-bot{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 0;flex-wrap:wrap;font-size:.78rem;color:rgba(255,255,255,.42)}
.foot-bot-links{display:flex;gap:24px;flex-wrap:wrap}
.foot-bot a:hover{color:var(--gold-2)}

/* To top */
.totop{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;background:var(--ink);color:#fff;
  display:grid;place-items:center;z-index:800;opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .35s var(--ease);border:1px solid rgba(255,255,255,.15);
}
.totop.on{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--gold);border-color:var(--gold)}
.totop svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}

/* Reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* --- Compress the nav slightly before collapsing it --- */
@media(max-width:1560px){
  .nav-link{padding:0 10px;font-size:.76rem}
  .nav-link::after{left:10px;right:10px}
  .brand-sub{font-size:.55rem;letter-spacing:.2em}
}

/* --- Collapse to burger menu while the full nav still fits nowhere --- */
@media(max-width:1400px){
  .burger{display:grid;place-items:center}
  /* backdrop-filter turns the header into a containing block for position:fixed
     children, which would trap the nav panel inside the header — drop it here. */
  .site-head{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--paper)}
  .nav{
    position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:var(--white);
    flex-direction:column;align-items:stretch;height:100%;padding:92px 0 40px;overflow-y:auto;
    transform:translateX(102%);transition:transform .45s var(--ease);z-index:950;gap:0;
    box-shadow:var(--shadow-l);border-left:2px solid var(--gold);
  }
  .nav.open{transform:none}
  .nav .nav-item{height:auto;display:block;border-bottom:1px solid var(--line-2);position:static}
  .nav .nav-link{
    height:auto;padding:16px 26px;justify-content:space-between;font-size:.82rem;letter-spacing:.06em;
  }
  .nav .nav-link::after{display:none}
  /* Higher specificity than .nav-item:hover>.dropdown, otherwise the desktop
     translate(-50%) leaks in and shifts the submenu off to the left. */
  .nav .nav-item .dropdown,
  .nav .nav-item:hover>.dropdown{
    position:static;transform:none;left:auto;right:auto;
    opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border:0;border-top:1px solid var(--line-2);background:var(--paper-2);
    width:100%;min-width:0;max-width:none;
    max-height:0;overflow:hidden;padding:0 0;transition:max-height .4s var(--ease);
  }
  .nav .nav-item.open .dropdown,
  .nav .nav-item.open:hover>.dropdown{max-height:720px;padding:8px 0}
  .nav .nav-item.open .caret{transform:rotate(180deg)}
  .nav .dd-link{padding:11px 26px}
  .nav .dd-link:hover{padding-left:32px}
  .nav .dd-d{display:none}
  .nav .dd-sep{margin:6px 26px}
  .nav .dd-foot{padding:10px 26px 4px}
}

@media(max-width:1120px){
  .cols{grid-template-columns:1fr;gap:44px}
  .side{position:static}
}
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .foot-top{grid-template-columns:1fr 1fr;gap:40px}
  .cgrid{grid-template-columns:1fr;gap:38px}
}
@media(max-width:900px){
  .topbar-left span:not(:first-child){display:none}
  .topbar{font-size:.72rem}
}
@media(max-width:680px){
  .wrap{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding:70px 0 62px}
  .hero-stats{gap:28px}
  .arow{grid-template-columns:1fr;gap:9px;padding:22px 0}
  .atype{justify-self:start}
  .foot-top{grid-template-columns:1fr;gap:34px}
  .grid-2{grid-template-columns:1fr}
  .modal-head,.tabs,.modal-body{padding-left:24px;padding-right:24px}
  .tabs{margin-left:24px;margin-right:24px}
  .brand-sub{display:none}
  .btn-auth span{display:none}
  .btn-auth{padding:0 12px;width:40px;justify-content:center}
  .head-inner{gap:10px;height:66px}
  .brand{gap:11px}
  .brand-mark{width:38px;height:38px}
  .brand-name{font-size:1.06rem}
  .lang-btn{padding:0 10px;gap:6px}
  .nav{padding-top:84px}
  .step{grid-template-columns:1fr;gap:10px}
  .form-box{padding:26px 22px}
}