@charset "UTF-8";
@import url("fonts.css");
@font-face {
    font-family: "Montserrat";
    src:url("montserrat.ttf") format("truetype");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}
:root{
  --bg:#fafafa;--bg2:#eef3fb;--card:#FFF;--text:#102033;--muted:#5d6b82;
  --line:#e6ebf3;--primary:#1E3A5F;--secondary:#152B45;--accent:#FF6B35;
  --warning:#f59e0b;--danger:#ef4444;--shadow:0 18px 50px rgba(16,32,51,.08);--max:1180px;--r:5px;
  --primary-font:"Montserrat",Arial,Helvetica,sans-serif;
}
html {
    scroll-padding-top: 66px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.4}
a{text-decoration:none;color:inherit}button,input,label{font:inherit}
.fa-regular, .fa-solid, .fa-brand {color:var(--secondary)}
.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.topbar{background:var(--card);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0;font-size:14px;color:var(--muted)}
.topbar .highlight{color:var(--text);font-weight:600}
.nav{position:sticky;top:0;z-index:70;background:var(--card);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:18px;padding:9px 0}
.logo{display:flex;align-items:center;gap:12px;min-width:max-content;}
.logo-mark img{width:66px;height:66px;display:grid;place-items:center;color:var(--card);font-weight:900;}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text strong{font-size:1.5rem;letter-spacing:.1px}
.logo-text span{font-size:12px;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-links a{padding:10px 14px;border-radius:10px;color:var(--text);transition:.2s ease}
.nav-links a:hover,.nav-links a.active{background:#eef4ff;color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.btn{border:0;border-radius:10px;padding:10px 15px;cursor:pointer;transition:.2s ease;font-weight:700}
.btn-primary{background:var(--primary);color:var(--card);}
.btn-primary .fa-solid{color:var(--card)!important;}
.btn-secondary{background:var(--secondary);color:var(--card);}
.btn-secondary .fa-solid{color:var(--card)!important;}
.btn-ghost{background:var(--card);border:1px solid var(--line);color:var(--text)}
.btn:hover{transform:translateY(-1px)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:7px;background:var(--card);border:1px solid var(--line);color:var(--text)}

/* ========================================
   MOBILE NAVIGATION - UPDATED
   Export + Profile beside hamburger
   Login/Signup in dropdown (side-by-side)
   ======================================== */
/* ========================================
   MOBILE NAVIGATION - UPDATED v2
   ======================================== */
@media (max-width: 920px) {
    .nav-inner {
        position: relative;
        flex-wrap: wrap;
        gap: 10px;
    }

    .logo {
        order: 1;
        flex: 1 1 auto;
        min-width: 0;
    }

    .menu-toggle {
        display: inline-grid;
        order: 4;
        flex: 0 0 44px;
        place-items: center;
        margin-left: 0;
    }

    /* Keep export and profile visible beside hamburger */
    .nav-actions {
        display: flex;
        order: 3;
        align-items: center;
        gap: 7px;
        width: auto;
        margin-left: auto;
    }

    .nav-actions .export-wrap,
    .nav-actions .profile-wrap {
        display: inline-flex;
        align-items: center;
        margin: 0;
    }

    /* Hide login/signup in closed state */
    .nav-actions #loginBtn,
    .nav-actions #signupBtn {
        display: none;
    }

    .nav-links {
        display: none;
        order: 5;
        width: 100%;
    }

    /* Opened mobile menu */
    .nav.open .nav-inner {
        flex-wrap: wrap;
    }

    .nav.open .nav-links {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        margin: 0;
        padding-top: 14px;
        border-top: 1px solid var(--line);
    }

    .nav.open .nav-links a {
        width: 100%;
        text-align: left;
    }

    /* Login/Signup appear side-by-side in opened menu */
    .nav.open .nav-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        width: 100%;
        margin: 0;
        padding-top: 14px;
    }

    .nav.open .nav-actions .export-wrap,
    .nav.open .nav-actions .profile-wrap {
        display: none;
    }

    .nav.open .nav-actions #loginBtn,
    .nav.open .nav-actions #signupBtn {
        display: inline-flex;
        width: 100%;
        min-width: 0;
        justify-content: center;
        text-align: center;
    }
}

/* Mobile button sizing */
@media (max-width: 920px) {
    .export-icon-btn {
        width: 42px;
        height: 42px;
        padding: 0;
    }

    .profile-btn {
        width: 42px;
        height: 42px;
    }

    .menu-toggle {
        width: 42px;
        height: 42px;
        padding: 0;
    }

    .logo-mark img {
        width: 48px;
        height: 48px;
    }

    .logo-text strong {
        font-size: 1rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

/* Prevent dropdown clipping */
@media (max-width: 920px) {
    .nav {
        overflow: visible;
    }

    .nav-inner {
        overflow: visible;
    }

    .export-dropdown,
    .profile-wrap .dropdown {
        z-index: 1200;
    }
}
/* ========================================
   END MOBILE NAVIGATION
   ======================================== */

/* FIX: Close button stays on same line in opened menu */
@media (max-width: 920px) {
    .nav.open .nav-inner {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav.open .logo {
        order: 1;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .nav.open .nav-actions {
        order: 2;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        width: 100%;
        margin: 0;
        padding-top: 14px;
    }
    
    .nav.open .nav-links {
        order: 3;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        margin: 0;
        padding-top: 14px;
        border-top: 1px solid var(--line);
    }
    
    /* Close button (menu toggle) stays in header row */
    .nav.open .menu-toggle {
        position: absolute;
        top: 15px;
        right: 0;
        order: 99;
        margin: 0;
    }
}

/* Prevent dropdown clipping */
@media (max-width: 920px) {
    .nav {
        overflow: visible;
    }

    .nav-inner {
        overflow: visible;
    }

    .export-dropdown,
    .profile-wrap .dropdown {
        z-index: 1200;
    }
}

/* ========================================
   END MOBILE NAVIGATION
   ======================================== */

.hero{width:100%;padding:50px 0 42px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border:1px solid rgba(37,99,235,.16);background:#eef4ff;color:#1e40af;border-radius:999px;font-size:13px}
.kicker-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 6px rgba(22,163,74,.10)}
h1{font-size:3rem;line-height:1.02;margin:18px 0 16px;letter-spacing:-.04em}
.lead{font-size:18px;color:var(--muted);max-width:58ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.stat{padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow)}
.stat strong{display:block;font-size:22px}
.stat span{color:var(--muted);font-size:13px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:var(--shadow)}
.panel-visual{min-height:420px;border-radius:22px;border:1px solid var(--line);padding:26px;display:flex;flex-direction:column;justify-content:space-between}
.search-summary{margin-top:16px;display:grid;gap:12px}
.mini{padding:14px 16px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);}
.section{padding:28px 0 64px}
.section h2{font-size:30px;margin:0 0 10px}
.section p.section-lead{margin:0 0 22px;}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{padding:22px;border-radius:10px;background:var(--card);border:1px solid var(--line);}
.card h3{margin:14px 0 8px;font-size:20px}
.card p{margin:0;}
.icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;border:1px solid rgba(37,99,235,.10);font-size:22px;background-color: var(--primary);}
.icon i{color:#FFF!important}
.search-section{padding:0 0 64px}
.search-box{background:var(--card);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:26px}
.search-row{display:flex;gap:10px;margin-top:16px}
.search-row input{flex:1;border:1px solid var(--line);background:#f8fbff;color:var(--text);padding:14px 16px;border-radius:7px;outline:none}
.search-row input::placeholder{color:#7c8aa1}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.badge{padding:8px 12px;border-radius:999px;background:#f3f7ff;border:1px solid var(--line);color:#334155;font-size:0.9rem}
.library{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.library-box{padding:24px;border-radius:24px;background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.library-box ul{margin:14px 0 0;padding:0;list-style:none}
.library-box li{padding:12px 0;border-bottom:1px solid rgba(16,32,51,.08);color:var(--muted)}
.library-box li:last-child{border-bottom:0}
.footer{padding:28px 0 40px;border-top:1px solid var(--line);background-color:var(--primary);}
.modal{position:fixed;inset:0;background:rgba(16,32,51,.45);display:none;align-items:center;justify-content:center;padding:18px;z-index:100}
.modal.open{display:flex}
.modal-card{max-width:600px;background:var(--card);border:1px solid var(--line);border-radius:7px;box-shadow:var(--shadow);overflow:hidden}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:10px;padding:16px 20px 0;}
.tab{flex:1;padding:12px;border-radius:7px;border:1px solid var(--line);background:#f8fbff;color:var(--muted);cursor:pointer;font-weight:700}
.tab.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:var(--card);border-color:transparent}
.form{padding:18px 20px 22px;display:grid;gap:14px}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
#bibtexModal,
#citeModal {
    z-index: 2100 !important;
}
#bibtexModal .modal-backdrop,
#citeModal .modal-backdrop {
    z-index: 2101;
}
#bibtexModal .modal-panel,
#citeModal .modal-panel {
    position: relative;
    z-index: 2102;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-row input {
  width: 100%;
}
@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}
.form-row.floating {
  position: relative;
}
.form-row.floating input {
  width: 100%;
  padding: 18px 14px 10px;
  border: 1px solid #dbe3ef;
  border-radius: 8px;
  background: #fff;
  outline: none;
  font-size: 14px;
}
.form-row.floating label {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #7a8599;
  font-size: 14px;
  pointer-events: none;
  transition: 0.2s ease;
  background: #fff;
  padding: 0 4px;
}
.form-row.floating input:focus + label,
.form-row.floating input:not(:placeholder-shown) + label {
  top: 0;
  transform: translateY(-50%) scale(0.9);
  color: #3f1979;
}
.form-row.floating input::placeholder {
  color: transparent;
}
.terms-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  cursor: pointer;
  font-size: 14px;
}
.terms-check input {
  margin: 0px!important;
  flex-shrink: 0;width:20px!important;
}
.form label{font-size:12px;color:var(--text)}
.form input{width:100%;padding:10px 16px;border-radius:7px;border:1px solid var(--line);background:#f8fbff;color:var(--text);outline:none}
.form input::placeholder{color:#7c8aa1}
.form .submit{margin-top:6px;width:100%}
.hidden{display:none}
.close{width:42px;height:42px;border-radius:7px;border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer}
.profile-wrap{position:relative;margin-left:8px}
.profile-btn{width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--primary);display:grid;place-items:center;cursor:pointer}
.profile-btn .avatar{width:100%;height:100%;border-radius:50%;display:grid;place-items:center;background:#eef4ff}
.dropdown{position:absolute;right:0;top:56px;width:240px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:10px;display:none}
.dropdown.open{display:block}
.dropdown .head{padding:10px 12px;border-bottom:1px solid var(--line);margin-bottom:8px}
.dropdown .head strong{display:block}
.dropdown .head span{color:var(--muted);font-size:13px}
.dropdown a,.dropdown button{width:100%;display:flex;align-items:center;gap:10px;border:0;background:transparent;padding:12px;border-radius:12px;color:var(--text);cursor:pointer;text-align:left}
.dropdown a:hover,.dropdown button:hover{background:#f3f7ff}
.dropdown .danger{color:var(--danger)}
.fab{position:fixed;right:18px;z-index:90;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;color:var(--card);box-shadow:0 16px 30px rgba(0,0,0,.18)}
.gotop{bottom:18px;display:none}
.toast{pointer-events:auto;display:flex;align-items:flex-start;gap:12px;background:var(--card);border:1px solid var(--line);border-left:5px solid var(--primary);border-radius:16px;padding:14px 14px;box-shadow:var(--shadow);animation:slideIn .2s ease}
.toast.success{border-left-color:var(--accent)}.toast.warning{border-left-color:var(--warning)}.toast.error{border-left-color:var(--danger)}
.toast .ticon{margin-top:2px;font-size:18px}.toast.success .ticon{color:var(--accent)}.toast.warning .ticon{color:var(--warning)}.toast.error .ticon{color:var(--danger)}
.toast .ttext{flex:1}.toast strong{display:block;margin-bottom:2px}.toast p{margin:0;color:var(--muted);font-size:14px}
.toast button{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:16px}
@keyframes slideIn{from{transform:translateY(-8px);opacity:0}to{transform:translateY(0);opacity:1}}

/* OLD mobile rules - REPLACED by updated section above */
@media (max-width: 920px){
  .hero-grid,.cards,.library{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}
@media (max-width: 560px){
    .topbar{display:none;}
  .topbar-inner{flex-direction:column;align-items:flex-start}
  .hero{padding-top:48px}
  .stats{grid-template-columns:1fr}
  .logo-text strong{font-size:14px}.logo-text span{font-size:11px}
  .section h2{font-size:26px}
  .search-row{flex-direction:column}
  .toast-wrap{left:12px;right:12px;width:auto}
}
/* search page */
.page{padding:30px 50px;}
.search-header{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:20px;}
.searchbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.searchbar input{flex:1;min-width:240px;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;background:#f8fbff;outline:none}
.mode-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.mode-chip{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line);background:#f8fbff;border-radius:var(--r);padding:10px 12px;font-size:14px}
.mode-chip input{accent-color:var(--primary)}
.results-header-wrap{position:sticky;top:66px;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(16,32,51,.06)}
.results-header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;background:#fff}
.panel{border-radius:7px;}
.sticky{position:sticky;top:95px;max-height:calc(100vh - 110px);overflow:auto}
.filter-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}
.filter-head h3{margin:0}
.filter-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.filter-btn{border:1px solid var(--primary);background:#fff;cursor:pointer;font-weight:700;font-size:0.8rem!important;}
.filter-card{border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:10px 12px;margin-bottom:12px}
.filter-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;font-weight:800}
.mini{font-size:13px;color:#64748b}
.check-row{display:flex;align-items:center;gap:10px;padding:6px 0;font-size:14px;color:#102033}
.check-row input{accent-color:var(--primary);margin:0}
.year-range{display:grid;gap:10px}
.range-labels{display:flex;justify-content:space-between;font-size:12px;color:#64748b}
.range-wrap{position:relative;height:36px}
.range-wrap input[type=range]{position:absolute;left:0;top:0;width:100%;pointer-events:none;appearance:none;background:none;height:36px}
.range-wrap input[type=range]::-webkit-slider-thumb{pointer-events:auto;appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid var(--primary);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.range-wrap input[type=range]::-moz-range-thumb{pointer-events:auto;width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid var(--primary);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.range-track{position:absolute;left:0;right:0;top:16px;height:4px;border-radius:999px;background:#dbe6f7}
.range-fill{position:absolute;top:16px;height:4px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.results-counter{font-size:16px;font-weight:600;padding:7px 0px;width:100%;}
.clear-btn{border:1px solid var(--line);background:#fff;border-radius:var(--r);padding:10px 12px;cursor:pointer}
.results{display:grid;gap:14px}
.result-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.result-head{padding:14px 18px 10px;border-bottom:1px solid var(--line)}
.result-head h4{margin:0 0 8px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta-line{display:block;color:#64748b;font-size:13px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.meta-inline{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.meta-pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#334155;background:#f8fbff;border:1px solid var(--line);border-radius:999px;padding:5px 9px}
.result-body{padding:16px 18px;line-height:1.4;white-space:wrap;overflow:hidden;text-overflow:ellipsis;font-size:0.9rem;}
.keyword-row,.cite-row{display:flex;flex-wrap:wrap;gap:6px;padding:0 18px 14px}
.kw-chip,.cite-chip{display:inline-flex;align-items:center;padding:6px 10px;border:1px solid var(--line);border-radius:999px;background:#f8fbff;font-size:12px;color:#334155;cursor:pointer}
.cite-chip.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-color:transparent}
.result-footer{padding:14px 18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer-left,.footer-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.small{font-size:13px;color:#64748b}
.bookmark-btn,.close-btn{border:1px solid var(--line);background:#fff;width:36px;height:36px;cursor:pointer;color:var(--primary);display:inline-flex;align-items:center;justify-content:center}
.cite-btn{border:1px solid var(--line);background:#fff;padding:8px 10px;cursor:pointer;font-weight:500;color:#102033;font-size:12px;display:inline-flex;align-items:center;gap:6px}
.export-add-btn.active{background-color:#16a34a;color:#FFF;}
.drawer{position:fixed;top:0;right:-50vw;width:50vw;max-width:960px;min-width:360px;height:100vh;background:#fff;border-left:1px solid var(--line);box-shadow:-20px 0 60px rgba(16,32,51,.16);z-index: 1000;transition:.28s ease;display:flex;flex-direction:column;overflow:hidden}
.drawer.open{right:0}
.drawer-head{padding:16px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;align-items:center}
.drawer-body{padding:18px;overflow:auto;position:relative;display:flex;flex-direction:column;min-height:0}
.drawer-title{margin:0 0 8px;font-size:22px}
.drawer-meta{margin:0 0 12px;display:grid;gap:4px}
.drawer-meta .meta-line{display:block;width:100%;max-width:100%;color:#000000;font-size:13px;line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#subjectChipsWrap .expand-toggle {
    display: inline-block !important;
    visibility: visible !important;
}
.drawer-section{border:1px solid var(--line);border-radius:var(--r);padding:14px;margin-bottom:12px;background:#fafcff}
.drawer-section h5{margin:0 0 8px;font-size:15px}
.drawer-keywords{display:flex;flex-wrap:wrap;gap:6px}
.drawer-actions{display:flex;gap:10px;flex-wrap:nowrap}
.drawer-footer{position:sticky;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:10px 12px;display:flex;justify-content:space-between;gap:10px;z-index:2}
.drawer-footer button{border:0;padding:5px 15px;font-size:12px;background:var(--primary);color:var(--card);}
.overlay{position:fixed;inset:0;background:rgba(16,32,51,.45);z-index:150;display:none}
.overlay.open{display:block}
.toast-wrap{position:fixed;top:64px;right:18px;z-index:300;display:grid;gap:10px;width:min(100%,360px)}
.toast{background:#fff;border:1px solid var(--line);border-left:5px solid var(--primary);border-radius:var(--r);box-shadow:var(--shadow);padding:14px;display:flex;gap:10px;align-items:flex-start}
.toast.success{border-left-color:var(--success)} .toast.warning{border-left-color:var(--warning)}
.toast .icon{margin-top:2px} .toast strong{display:block} .toast p{margin:2px 0 0;color:#64748b;font-size:14px}
.toast button{margin-left:auto;border:0;background:transparent;cursor:pointer;color:#64748b}
.pagination{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:18px}
.pagination button,.pagination span{border:1px solid var(--line);background:#fff;border-radius:var(--r);padding:10px 14px}
.pagination .active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-color:transparent}
.expand-toggle{display:none}
.action-row{display:flex;align-items:center;gap:5px;padding:10px 7px;border:1px solid var(--line);background:#fff;border-radius:var(--r);color:#102033;cursor:pointer;text-align:left;white-space:nowrap;font-size:0.8rem;}
.action-row:hover{background:#f3f7ff}
.pagination-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.pagination-wrap button,
.pagination-wrap .pagination-ellipsis {
    min-width: 38px;
    padding: 8px 10px;
}
.modal-backdrop{position:absolute;inset:0;background:rgba(16,32,51,.45)}
.modal-panel{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(720px, calc(100% - 24px));max-height:80vh;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden}
.modal-head,.modal-foot{padding:10px 16px;border-bottom:1px solid var(--line)}
.modal-foot{border-top:1px solid var(--line);border-bottom:0;display:flex;justify-content:flex-end;gap:10px}
.modal-body{padding:16px;}
.modal-search{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r);margin-bottom:14px}
.modal-list{display:grid;gap:6px;max-height:50vh;overflow:auto}
.subject-item{display:flex}
.cite-modal-body{display:grid;gap:14px}
.cite-title{font-size:14px;color:#64748b}
.cite-preview{border:1px solid var(--line);border-radius:var(--r);padding:14px;background:#fafcff;white-space:pre-wrap;line-height:1.65;color:#102033}
.copy-row{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.export-note{font-size:13px;color:#64748b}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r);padding:24px;text-align:center;color:#64748b}
.empty-state h3{margin:0 0 8px;color:#102033}
.modal-close{position:absolute;top:12px;right:12px}
.modal-head-wrap{position:relative;padding-right:54px}
.sort-select{border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;background:#fff;box-shadow:var(--shadow);min-width:220px}
.card-actions-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.export-panel{margin-top:14px;padding:14px;border:1px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--shadow)}
.count{display:flex;justify-content:flex-end;align-items:center;margin-bottom:10px;font-size:13px;color:#64748b}
.count span{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:22px;padding:0 8px;border-radius:999px;background:var(--primary);color:#fff;font-weight:700}
.export-panel .export-selected-btn{width:100%;display:flex;justify-content:center;gap:8px;align-items:center}
.export-list-note{margin-top:10px;font-size:12px;color:#64748b;line-height:1.4}
.field-row{display:grid;gap:8px;margin-bottom:10px}
.field-row label{font-size:13px;color:#64748b;font-weight:700}
.field-row select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.toggle-block {
    display: block;
}
.toggle-text {
    white-space: pre-wrap;
    line-height: 1.6;
}
.toggle-text.clamp-text {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.read-more-toggle {
    margin-top: 6px;
    background: none;
    border: none;
    color: #2563eb;
    cursor: pointer;
    padding: 0;
    font: inherit;
}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:1100px){
  .grid{grid-template-columns:1fr}
  .ads{display:none}
  .drawer{width:100vw;max-width:none;min-width:0;right:-100vw}
}
@media (min-width:721px){
  .close-drawer-btn{display:none !important}
}
@media (max-width:720px){
    .page{padding:30px 15px;}
  .meta-line{white-space:normal;overflow:visible;text-overflow:clip}
  .searchbar{flex-direction:column;align-items:stretch}
  .searchbar input,.searchbar button{width:100%}
  .result-footer{align-items:flex-start}
  .sticky{position:static;max-height:none}
  .drawer-actions{flex-wrap:wrap}
  .modal-panel{width:100%;height:100%;max-height:none;border-radius:0;transform:none;top:0;left:0}
  .results-header-wrap{position:static}
  .mobile-drawer-mask{position:fixed;inset:0;background:rgba(16,32,51,.45);z-index:240}
  .mobile-panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
  .mobile-panel-head h3{margin:0}
  .close-drawer-btn{border:1px solid var(--line);background:#fff;width:36px;height:36px;border-radius:var(--r);cursor:pointer}
  .results{margin-top:8px}
}
.search-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
}
.search-sidebar {
    position: sticky;
    top: 20px;
}
.export-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}
.export-icon-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.06);
    color: #fff;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.export-icon-btn:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-1px);
}
.export-icon-btn i {
    font-size: 1rem;
}
.export-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    line-height: 20px;
    text-align: center;
}
.export-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    right: 0!important;
    width: 320px;
    max-width: calc(100vw - 24px);
    background: #FFF;
    color: #000;
    box-shadow: 0 0 0 1px rgba(255,255,255,0.06);
    border-radius: var(--r);
    padding: 14px;
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}
.export-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}
.export-dropdown-head {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}
.export-dropdown-body {
    max-height: 240px;
    overflow: auto;
    padding: 8px 0;
}
.export-dropdown-foot {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 12px;
}
.export-dropdown select {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    border-radius: var(--r);
    border: solid 1px var(--line);
    background: #FFF;
    color: #000;
    outline: none;
}
.export-dropdown select option {
    color: #111827;
}
.export-dropdown .item-list {
    font-size: 0.9rem;
    color: #000;
    padding: 5px 7px;
    border-radius: 5px 5px;
    border: solid 1px #cbcaca;
    margin-bottom: 7px;
    background-color: #FFF;
}
.export-dropdown .btn {
    white-space: nowrap;padding:5px 10px;border-radius: var(--r);
}
.btn-clear{padding:5px 10px;font-size: 0.8rem;;}
.results-shell {
    position: relative;
    min-height: 420px;
}
.results-skeleton {
    display: none;
    gap: 16px;
}
.results-skeleton.show {
    display: grid;
}
.skeleton-card {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 18px;
    padding: 18px;
    overflow: hidden;
}
.skeleton {
    background: linear-gradient(
        90deg,
        #e2e8f0 25%,
        #f8fafc 50%,
        #e2e8f0 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.3s infinite linear;
    border-radius: 8px;
}
.skeleton-line {
    height: 12px;
    margin-bottom: 10px;
}
.skeleton-title {
    height: 18px;
    width: 72%;
    margin-bottom: 14px;
}
.skeleton-meta {
    height: 12px;
    width: 46%;
    margin-bottom: 10px;
}
.skeleton-text {
    height: 12px;
    width: 100%;
    margin-bottom: 8px;
}
.skeleton-text.short {
    width: 78%;
}
.skeleton-footer {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}
.skeleton-pill {
    width: 70px;
    height: 26px;
    border-radius: 999px;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce) {
    .skeleton {
        animation: none;
    }
}
.grl-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 64px 24px;
  color: #4a5568;
  max-width: 480px;
  margin: 0 auto;
}
.grl-empty-state svg { width: 96px; height: 96px; margin-bottom: 20px; color: var(--primary); }
.grl-empty-state h3 { margin: 0 0 8px; font-size: 1.25rem; font-weight: 600; color: #1e293b; }
.grl-empty-state p { margin: 0 0 20px; font-size: 0.95rem; line-height: 1.5; color: #64748b; }
.grl-empty-state p strong { color: #334155; }
.grl-empty-state ul { text-align: left; list-style: none; padding: 0; margin: 0; font-size: 0.9rem; color: #475569; }
.grl-empty-state ul li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 8px; }
.grl-empty-state ul li svg { width: 16px; height: 16px; margin: 0; flex-shrink: 0; margin-top: 3px; color: var(--primary); }
.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: #f5f5f5;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    transition: background 0.2s;
}
.accordion-header:hover {
    background: #e8e8e8;
}
.accordion-header.active {
    background: #e0e0e0;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.accordion-title {
    display: flex;
    align-items: center;
    gap: 8px;
}
.accordion-count {
    background: #0066cc;
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.85em;
    font-weight: 600;
}
.accordion-icon {
    transition: transform 0.3s;
}
.accordion-header.active .accordion-icon {
    transform: rotate(180deg);
}
.accordion-content {
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    border-top: none;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
    padding: 16px;
}
.reference-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    margin-bottom: 8px;
}
.ref-number {
    font-weight: 600;
    color: #666;
    min-width: 30px;
    flex-shrink: 0;
}
.ref-content {
    flex: 1;
    min-width: 0;
}
.ref-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: #333;
}
.ref-title-text {
    color: #333;
    display: block;
}
.ref-authors {
    font-size: 0.9em;
    color: #444;
    margin-bottom: 4px;
}
.ref-journal {
    font-size: 0.9em;
    color: #666;
    font-style: italic;
    margin-bottom: 6px;
}
.ref-meta {
    font-size: 0.85em;
    color: #888;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.ref-citations, .ref-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.ref-view-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: #0066cc;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.85em;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}
.ref-view-btn:hover {
    background: #0055aa;
    color: white;
    text-decoration: none;
}
.ref-view-external {
    background: #666;
}
.ref-view-external:hover {
    background: #555;
    color: white;
    text-decoration: none;
}
.references-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.details-grid {
    display: grid;
    grid-template-columns: 220px 1fr 220px;
    gap: 16px;
    max-width: 1200px;
    margin: 24px auto 48px;
    padding: 0 16px;
}
.details-sidebar {
    position: sticky;
    top: 70px;
    align-self: start;
}
.details-sidebar .ad-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}
.details-sidebar .ad-card h4 {
    margin: 0 0 6px;
    font-size: 0.95rem;
}
.details-sidebar .ad-card p {
    margin: 0;
    font-size: 0.85rem;
    color: #475569;
}
.details-main {
    min-width: 0;
}
.work-details-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 18px 16px 22px;
}
.work-details-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.work-title {
    font-size: 1.4rem;
    margin: 0;
    line-height: 1.3;
}
.work-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.work-meta {
    margin-bottom: 18px;
    color: #334155;
}
.meta-line {
    margin-bottom: 6px;
}
.work-section {
    margin-top: 22px;
}
.work-section h2 {
    font-size: 1.1rem;
    margin: 0 0 8px;
}
.work-abstract,
.work-s2-summary p,
.work-s2-tldr p,
.work-funding {
    line-height: 1.6;
    color: #334155;
}
.no-info {
    color: #94a3b8;
    font-style: italic;
}
.work-subjects {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.work-details-list {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 6px 10px;
}
.work-details-list dt {
    font-weight: 600;
    color: #0f172a;
}
.work-details-list dd {
    margin: 0;
    color: #334155;
}
.work-references {
    margin: 0;
    padding-left: 20px;
}
.work-references li {
    margin-bottom: 6px;
}
.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    border: 1px solid #cbd5e1;
    background: #f1f5f9;
    color: #0f172a;
}
.share-btn.whatsapp {
    background: #dcfce7;
    border-color: #86efac;
    color: #14532d;
}
.share-note {
    margin-top: 12px;
    font-size: 0.85rem;
    color: #64748b;
}
@media (max-width: 900px) {
    .details-grid {
        grid-template-columns: 1fr;
    }
    .details-sidebar {
        position: static;
    }
    .work-details-list {
        grid-template-columns: 1fr;
        gap: 4px 0;
    }
    .work-details-list dt {
        margin-top: 10px;
    }
}
#signupSuccessModal .modal-panel {
    max-width: 450px;
}
#signupSuccessModal .modal-body {
    padding: 40px 30px !important;
}
.selectable-dropdown {
    position: relative;
    width: 100%;
}
.selectable-dropdown .selected-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    font-size: 14px;
    color: #374151;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.selectable-dropdown .selected-option:hover {
    border-color: #9ca3af;
}
.selectable-dropdown .selected-option:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.selectable-dropdown .selected-option .arrow {
    width: 10px;
    height: 10px;
    border-right: 2px solid #6b7280;
    border-bottom: 2px solid #6b7280;
    transform: rotate(45deg);
    transition: transform 0.2s;
}
.selectable-dropdown.open .selected-option .arrow {
    transform: rotate(-135deg);
}
.selectable-dropdown .dropdown-options {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.2s, opacity 0.2s;
}
.selectable-dropdown.open .dropdown-options {
    max-height: 300px;
    opacity: 1;
    overflow: visible;
}
.selectable-dropdown .search-box {
    padding: 8px;
    border-bottom: 1px solid #e5e7eb;
    background: #f9fafb;
    border-radius: 6px 6px 0 0;
}
.selectable-dropdown .search-box input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
}
.selectable-dropdown .search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.selectable-dropdown .options-list {
    max-height: 250px;
    overflow-y: auto;
    padding: 4px 0;
}
.selectable-dropdown .option-item {
    padding: 10px 14px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 14px;
    color: #374151;
}
.selectable-dropdown .option-item:hover {
    background: #f3f4f6;
}
.selectable-dropdown .option-item.selected {
    background: #eff6ff;
    color: #1e40af;
    font-weight: 500;
}
.selectable-dropdown .option-item.hidden {
    display: none;
}
.selectable-dropdown .no-results {
    padding: 12px 14px;
    color: #6b7280;
    font-size: 14px;
    text-align: center;
    display: none;
}
.selectable-dropdown .no-results.show {
    display: block;
}
.form-row.floating .selectable-dropdown .selected-option {
    padding: 14px 14px;
}
.site-footer {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #f1f5f9;
    padding: 60px 0 0 0;
    margin-top: 80px;
}
.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand {
    padding-right: 20px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}
.footer-logo i {
    font-size: 28px;
    color: var(--primary);
}
.footer-description {
    font-size: 14px;
    line-height: 1.7;
    color: #FFF;
    margin-bottom: 20px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    color: #94a3b8;
    transition: all 0.3s;
    text-decoration: none;
}
.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}
.footer-column {
    padding-left: 10px;
}
.footer-heading {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin: 0px 0px 20px 0px;
    position: relative;
}
.footer-heading::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 30px;
    height: 2px;
    background: #FFF;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 12px;
}
.footer-links a {
    color: #FFF;
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}
.footer-links a:hover {
    color: #FFF;
    padding-left: 5px;
}
.footer-links i {
    font-size: 10px;color:#FFF;
}
.footer-newsletter-text {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 16px;
    line-height: 1.6;
}
.footer-newsletter {
    margin-top: 12px;
}
.newsletter-input-group {
    display: flex;
    gap: 8px;
}
.newsletter-input-group input {
    flex: 1;
    padding: 10px 14px;
    border-radius: 6px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.newsletter-input-group input::placeholder {
    color: #64748b;
}
.newsletter-btn {
    padding: 10px 16px;
    background: #FFF;
    border: none;
    border-radius: 6px;
    color: white;
    cursor: pointer;
}
.newsletter-btn:hover {
    background: var(--accent);
}
.footer-bottom {
    padding: 24px 0;
}
.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-bottom p {
    margin: 0;
    font-size: 14px;
    color: #FFF;
}
.footer-bottom-links {
    display: flex;
    gap: 24px;
}
.footer-bottom-links a {
    color: #FFF;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.footer-bottom-links a:hover {
    color: #FFF;
}
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
        padding-right: 0;
    }
}
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
}
.mobile-fixed-btn.left {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 999;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    transition: all 0.3s;
    align-items: center;
    gap: 0.5rem;
}
.mobile-fixed-btn.left i {
    font-size: 1.25rem;
}
.mobile-fixed-btn.left:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(99, 102, 241, 0.5);
}
.mobile-drawer-mask {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s;
}
.mobile-drawer-mask.active {
    display: block;
    opacity: 1;
}
@media (max-width: 1200px) {
    #filterPanel {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        z-index: 999;
        transition: left 0.3s ease;
        border-radius: 0;
        overflow-y: auto;
        background: white;
        box-shadow: 0 0 40px rgba(0,0,0,0.2);
    }
    
    #filterPanel.active {
        left: 0;
    }
    
    #closeFiltersMobile {
        display: block !important;
    }
    
    .mobile-fixed-btn.left {
        display: flex !important;
    }
}
@media (max-width: 768px) {
    #filterPanel {
        position: fixed;
        top: 0;
        left: -100%;
        width: 85%;
        max-width: 380px;
        height: 100vh;
        z-index: 1001;
        overflow-y: auto;
        transition: left 0.3s ease;
        background: #fff;
    }

    #filterPanel.active {
        left: 0;
    }

    #openFiltersMobile {
        display: flex;
        position: fixed;
        left: 16px;
        bottom: 16px;
        z-index: 1000;
    }

    #closeFiltersMobile {
        display: block;
    }

    #mobileDrawerMask {
        display: none;
        position: fixed;
        inset: 0;
        z-index: 1000;
        background: rgba(0, 0, 0, 0.45);
    }

    #mobileDrawerMask.active {
        display: block;
    }

    body.drawer-open {
        overflow: hidden;
    }
}
#infoPanel {
    width: 340px;
}
@media (max-width: 1200px) {
    #infoPanel {
        width: 300px;
    }
}
@media (max-width: 968px) {
    #infoPanel {
        width: 280px;
    }
}
@media (max-width: 768px) {
    #infoPanel {
        width: 100%;
        position: static;
        height: auto;
        margin-top: 2rem;
    }
}
.info-card {
    background: white;
    border-radius: 7px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border: 1px solid #e2e8f0;
}
.info-header {
    margin-bottom: 1rem;
}
.info-header h4 {
    font-size: 1.125rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;margin:0px 0px 20px 0px;border-bottom:solid 1px #DDD;
}
.info-header i {
    color: var(--primary);
}
.conference-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.conference-item {
    display: flex;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}
.conference-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.conference-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 12px;
    min-width: 70px;
}
.conference-date .day {
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1;
}
.conference-date .month {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.25rem;
}
.conference-info {
    flex: 1;
}
.conference-info strong {
    display: block;
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 0.25rem;
}
.conference-info .location {
    display: block;
    font-size: 0.8rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}
.conference-info .location i {
    margin-right: 0.25rem;
}
.conference-link {
    font-size: 0.8rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}
.conference-link:hover {
    text-decoration: underline;
}
.news-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.news-item {
    display: flex;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}
.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.news-image {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}
.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-content {
    flex: 1;
}
.news-content strong {
    display: block;
    font-size: 0.9rem;
    color: var(--dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}
.news-date {
    font-size: 0.75rem;
    color: var(--gray);
}
.journal-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.journal-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: #f8fafc;
    border-radius: 8px;
    transition: background 0.3s;
}
.journal-item:hover {
    background: #f1f5f9;
}
.journal-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-4);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}
.journal-info {
    flex: 1;
}
.journal-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--dark);
}
.journal-impact {
    font-size: 0.75rem;
    color: var(--gray);
}
.view-all-link {
    display: block;
    text-align: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}
.view-all-link:hover {
    color: var(--primary-dark);
}
.view-all-link i {
    margin-left: 0.5rem;
    transition: transform 0.3s;
}
.view-all-link:hover i {
    transform: translateX(5px);
}
.mobile-panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e2e8f0;
}
.mobile-panel-head h4 {
    font-size: 1.125rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.filter-btn.primary {
    background: var(--gradient-4);
    color: white;
}
.filter-btn.secondary {
    background: #f1f5f9;
    color: var(--dark-2);
}
.grid {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr) 320px;
    gap: 20px;
}
@media (max-width: 1100px) {
    .grid {
        grid-template-columns: minmax(0, 1fr) 300px;
    }

    #filterPanel {
        position: fixed;
    }
}
@media (max-width: 768px) {
    .grid {
        display: flex;
        flex-direction: column;
    }

    #filterPanel {
        position: fixed;
        order: 0;
    }

    .grid > main {
        order: 1;
    }

    .grid > .panel.ads {
        order: 2;
        display: block;
        width: 100%;
        position: static;
        height: auto;
        margin-top: 24px;
    }
}
/* Export All Dropdown */
.export-all-wrap {
    position: relative;
    display: inline-block;
}

.export-all-wrap .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.export-all-wrap .fa-chevron-down {
    font-size: 10px;
    transition: transform 0.2s;
}

.export-all-wrap.open .fa-chevron-down {
    transform: rotate(180deg);
}

.export-all-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 220px;
    background: #FFF;
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    padding: 12px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.export-all-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.export-dropdown-head {
    padding: 8px 12px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 8px;
}

.export-dropdown-head strong {
    font-size: 13px;
    color: var(--text);
    font-weight: 600;
}

.export-dropdown-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.export-format-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    text-align: left;
}

.export-format-btn:hover {
    background: #f3f7ff;
    border-color: var(--primary);
    transform: translateX(2px);
}

.export-format-btn i {
    font-size: 16px;
    color: var(--primary);
    width: 20px;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .export-all-dropdown {
        right: auto;
        left: 0;
        width: min(92vw, 220px);
    }
}
/* Drawer navigation buttons - disabled state */
.drawer-nav-btn:disabled,
.drawer-nav-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.drawer-nav-btn:not(:disabled):hover {
    background-color: rgba(0, 0, 0, 0.08);
}
.btn-apply{background-color:var(--primary);color:#FFF;border:none;font-size:11px;font-weight:500;padding:5px 10px;}
.btn-clear{background-color:var(--bg);color:#000;border:solid 1px var(--primary);font-size:11px;font-weight:500;padding:5px 10px;}