/* ============================================================
   IJTIMES – Main Stylesheet
   Purple + Teal modern academic theme
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=DM+Sans:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap'); 

/* ---- CSS Variables ---- */
   
:root {
  --teal-950:#1a0a2e; --teal-900:#2d1454; --teal-800:#4a1d7a; --teal-700:#5b2a96;
  --teal-600:#7339b5; --teal-500:#8b4fd1; --teal-400:#a874e0; --teal-300:#c4a3ec;
  --teal-200:#dec8f5; --teal-100:#ede0fa; --teal-50:#f7eefd;
  --gold-700:#0a6e63; --gold-600:#0d8a7c; --gold-500:#12a895;
  --gold-400:#3fc7b3; --gold-300:#7fdcce; --gold-100:#daf6f1;
  --slate-900:#171221; --slate-700:#332a44; --slate-400:#8a7f9c;
  --slate-300:#b5acc7; --slate-200:#dcd5e8; --slate-100:#eee9f6; --slate-50:#f8f6fb;
  --white:#ffffff; --text-dark:#170f24; --text-mid:#3a2d4f; --text-muted:#6b5f82;
  --radius-sm:6px; --radius-md:10px; --radius-lg:16px; --radius-xl:24px;
}

/* ---- Reset ---- */
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'DM Sans',sans-serif;background:#fff;color:var(--text-dark);line-height:1.6;font-size:15px;}
a{color:var(--teal-700);text-decoration:none;}
a:hover{color:var(--teal-500);}
h1,h2,h3,.serif{font-family:'Playfair Display',serif;}
img{max-width:100%;height:auto;}
ul{list-style:none;}

/* ---- TOP BAR ---- */
.topbar{background:var(--teal-900);color:var(--teal-300);font-size:11.5px;padding:5px 0;text-align:center;letter-spacing:.03em;}
.topbar a{color:var(--teal-300);}
.topbar a:hover{color:var(--teal-200);}
.topbar span{color:var(--gold-400);font-weight:600;margin:0 4px;}
.topbar-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;}

/* ---- HEADER ---- */
.site-header{background:#fff;border-bottom:1px solid var(--slate-200);position:sticky;top:0;z-index:999;box-shadow:0 2px 16px rgba(74,29,122,.07);}
.header-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;}

.logo-link{display:flex;align-items:center;gap:10px;padding:8px 0;text-decoration:none;}
.logo-icon{width:38px;height:38px;background:linear-gradient(135deg,var(--teal-800),var(--teal-500));border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-family:'Playfair Display',serif;font-size:15px;font-weight:700;letter-spacing:-1px;flex-shrink:0;}
.logo-text .abbr{font-family:'Playfair Display',serif;font-size:18px;font-weight:700;color:var(--teal-800);line-height:1.1;}
.logo-text .full{font-size:9px;color:var(--text-muted);max-width:230px;line-height:1.25;}

/* ---- NAV ---- */
.main-nav{display:flex;align-items:center;gap:0;}
.nav-item{position:relative;font-size:13.5px;font-weight:500;color:var(--text-mid);padding:15px 13px;cursor:pointer;white-space:nowrap;transition:color .2s;user-select:none;}
.nav-item:hover,.nav-item.active{color:var(--teal-700);}
.nav-item.active::after{content:'';position:absolute;bottom:0;left:13px;right:13px;height:2.5px;background:var(--teal-600);border-radius:2px 2px 0 0;}
.dropdown{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius-md);padding:6px 0;min-width:210px;box-shadow:0 8px 32px rgba(74,29,122,.13);z-index:500;}
.nav-item:hover .dropdown{display:block;}
.dropdown a{display:block;padding:10px 18px;font-size:13px;color:var(--text-mid);transition:background .15s;}
.dropdown a:hover{background:var(--teal-50);color:var(--teal-700);}
.nav-arrow{font-size:9px;margin-left:3px;opacity:.55;}

.header-btns{display:flex;gap:8px;align-items:center;}

/* ---- BUTTONS ---- */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:var(--radius-md);font-family:'DM Sans',sans-serif;font-size:13.5px;font-weight:500;cursor:pointer;border:none;transition:all .2s;text-decoration:none;line-height:1.2;}
.btn-primary{background:var(--teal-700);color:#fff;box-shadow:0 2px 8px rgba(10,115,97,.25);}
.btn-primary:hover{background:var(--teal-800);color:#fff;}
.btn-outline{background:transparent;border:1.5px solid var(--teal-600);color:var(--teal-700);}
.btn-outline:hover{background:var(--teal-50);}
.btn-gold{background:var(--gold-500);color:#fff;}
.btn-gold:hover{background:var(--gold-700);color:#fff;}
.btn-sm{padding:7px 14px;font-size:12.5px;}
.btn-lg{padding:13px 32px;font-size:15px;}

/* ---- PAGE BANNER ---- */
.page-banner{background:var(--teal-900);padding:44px 24px;text-align:center;}
.page-banner h1{font-size:clamp(26px,3vw,40px);color:#fff;margin-bottom:10px;}
.page-banner p{color:var(--teal-300);font-size:14px;}
.breadcrumb{display:flex;justify-content:center;gap:8px;font-size:13px;color:var(--teal-400);margin-top:10px;flex-wrap:wrap;}
.breadcrumb a{color:var(--teal-300);}
.breadcrumb a:hover{color:var(--teal-200);}
.breadcrumb span{opacity:.5;}

/* ---- LAYOUT ---- */
.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:64px 24px;}
.section-sm{padding:40px 24px;}
.section-inner{max-width:1280px;margin:0 auto;}
.row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px;}
.sidebar-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start;}
.bg-teal{background:var(--teal-50);}
.bg-dark{background:var(--teal-900);}
.bg-white{background:#fff;}
.text-center{text-align:center;}

/* ---- SECTION HEADER ---- */
.section-tag{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-600);margin-bottom:8px;}
.section h2,.section-title{font-size:clamp(24px,3vw,36px);color:var(--teal-900);line-height:1.2;margin-bottom:14px;}
.section-sub{color:var(--text-muted);font-size:15px;max-width:580px;line-height:1.7;}
.section-header{margin-bottom:40px;}

/* ---- FLASH MESSAGES ---- */
.flash{padding:14px 20px;border-radius:var(--radius-md);margin-bottom:18px;font-size:14px;font-weight:500;}
.flash-success{background:#f0fdf4;color:#166534;border:1px solid #86efac;}
.flash-error{background:#fef2f2;color:#991b1b;border:1px solid #fca5a5;}
.flash-info{background:var(--teal-50);color:var(--teal-800);border:1px solid var(--teal-200);}
.flash-warning{background:#fffbeb;color:#92400e;border:1px solid #fde68a;}

/* ---- CARDS ---- */
.card{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius-lg);padding:28px;transition:box-shadow .2s,transform .2s;}
.card:hover{box-shadow:0 8px 32px rgba(74,29,122,.09);transform:translateY(-2px);}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;}

/* ---- FORMS ---- */
.form-wrap{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius-xl);padding:36px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-group{display:flex;flex-direction:column;gap:7px;margin-bottom:4px;}
.form-group.full{grid-column:1/-1;}
.form-group label{font-size:13px;font-weight:600;color:var(--teal-800);}
.form-group input,.form-group select,.form-group textarea{font-family:'DM Sans',sans-serif;font-size:14px;color:var(--text-dark);border:1.5px solid var(--slate-200);border-radius:var(--radius-md);padding:10px 14px;outline:none;transition:border-color .2s;background:#fff;width:100%;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--teal-500);box-shadow:0 0 0 3px rgba(139,79,209,.1);}
.form-group textarea{min-height:90px;resize:vertical;}
.required{color:var(--teal-600);}
.form-note{font-size:11.5px;color:var(--text-muted);margin-top:4px;}
.form-row{display:flex;gap:10px;align-items:center;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-muted);}
.check-row input[type=checkbox]{margin-top:2px;accent-color:var(--teal-600);width:15px;height:15px;}

/* ---- UPLOAD ZONE ---- */
.upload-zone{border:2px dashed var(--teal-300);border-radius:var(--radius-lg);padding:28px;text-align:center;background:var(--teal-50);cursor:pointer;transition:all .2s;}
.upload-zone:hover{border-color:var(--teal-600);background:var(--teal-100);}
.upload-zone .up-icon{font-size:32px;margin-bottom:10px;}
.upload-zone p{font-size:13.5px;color:var(--text-muted);}
.upload-zone strong{color:var(--teal-700);}

/* ---- TABLE ---- */
.data-table-wrap{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius-lg);overflow:hidden;}
.data-table-wrap .t-header{padding:16px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--slate-100);}
.data-table-wrap .t-header h3{font-size:15px;font-weight:600;font-family:'DM Sans',sans-serif;}
table.dtable{width:100%;border-collapse:collapse;}
table.dtable th{background:var(--slate-50);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);padding:11px 16px;text-align:left;border-bottom:1px solid var(--slate-200);}
table.dtable td{padding:12px 16px;font-size:13.5px;border-bottom:1px solid var(--slate-100);color:var(--text-dark);}
table.dtable tr:last-child td{border:none;}
table.dtable tr:hover td{background:var(--teal-50);}
.table-resp{overflow-x:auto;}

/* ---- STATUS BADGES ---- */
.badge{display:inline-block;font-size:11px;font-weight:600;padding:3px 10px;border-radius:100px;}
.badge-pending{background:#fff8e1;color:#92640a;border:1px solid #fde68a;}
.badge-review{background:#e0f2fe;color:#0369a1;border:1px solid #7dd3fc;}
.badge-accepted{background:var(--teal-50);color:var(--teal-800);border:1px solid var(--teal-200);}
.badge-rejected{background:#fef2f2;color:#991b1b;border:1px solid #fca5a5;}
.badge-published{background:#f0fdf4;color:#166534;border:1px solid #86efac;}
.badge-revision{background:#fffbeb;color:#92400e;border:1px solid #fde68a;}
.badge-active{background:var(--teal-50);color:var(--teal-800);border:1px solid var(--teal-200);}
.badge-inactive{background:var(--slate-100);color:var(--text-muted);border:1px solid var(--slate-200);}

/* ---- INFO SIDEBAR BOX ---- */
.info-box{background:var(--teal-50);border:1px solid var(--teal-200);border-radius:var(--radius-lg);padding:22px;margin-bottom:20px;}
.info-box h4{font-family:'DM Sans',sans-serif;font-size:13px;font-weight:700;color:var(--teal-800);text-transform:uppercase;letter-spacing:.07em;margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--teal-200);}
.info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--teal-100);font-size:13px;}
.info-row:last-child{border:none;}
.info-row .k{color:var(--text-muted);}
.info-row .v{color:var(--teal-900);font-weight:600;}
.issn-badge{background:var(--teal-900);color:#fff;display:inline-flex;align-items:center;gap:10px;padding:12px 20px;border-radius:var(--radius-md);font-size:13px;margin-top:8px;}
.issn-num{font-family:'JetBrains Mono',monospace;font-size:17px;color:var(--teal-400);font-weight:500;letter-spacing:1px;}

/* ---- SUBJECT TAGS ---- */
.tags-wrap{display:flex;flex-wrap:wrap;gap:10px;}
.subject-tag{background:var(--teal-50);border:1px solid var(--teal-200);color:var(--teal-800);font-size:13px;font-weight:500;padding:8px 16px;border-radius:100px;transition:all .2s;cursor:default;}
.subject-tag:hover{background:var(--teal-700);color:#fff;border-color:var(--teal-700);}

/* ---- STEP LIST ---- */
.step-list{display:flex;flex-direction:column;gap:0;}
.step-item{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid var(--teal-100);}
.step-item:last-child{border:none;}
.step-num{width:34px;height:34px;min-width:34px;background:var(--teal-700);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-family:'JetBrains Mono',monospace;}
.step-content h4{font-size:14px;font-weight:600;color:var(--teal-800);margin-bottom:4px;font-family:'DM Sans',sans-serif;}
.step-content p{font-size:13px;color:var(--text-muted);line-height:1.5;}

/* ---- TRACKER STEPS ---- */
.tracker{display:flex;flex-direction:column;gap:0;margin-top:20px;}
.t-step{display:flex;gap:16px;padding:0 0 24px;position:relative;}
.t-step:not(:last-child)::before{content:'';position:absolute;left:16px;top:34px;bottom:0;width:2px;background:var(--slate-200);}
.t-step.done::before{background:var(--teal-400);}
.t-icon{width:34px;height:34px;min-width:34px;border-radius:50%;background:var(--slate-100);color:var(--slate-400);display:flex;align-items:center;justify-content:center;font-size:13px;z-index:1;}
.t-step.done .t-icon{background:var(--teal-700);color:#fff;}
.t-step.current .t-icon{background:var(--gold-400);color:var(--teal-950);box-shadow:0 0 0 4px rgba(232,176,64,.2);}
.t-content h4{font-size:14px;font-weight:600;font-family:'DM Sans',sans-serif;}
.t-content p{font-size:12px;color:var(--text-muted);margin-top:3px;}

/* ---- INDEXING LOGOS ---- */
.index-grid{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px;}
.index-badge{background:#fff;border:1.5px solid var(--slate-200);border-radius:var(--radius-md);padding:12px 22px;font-size:13px;font-weight:600;color:var(--text-mid);display:flex;align-items:center;gap:8px;}
.index-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--teal-500);}

/* ---- FOOTER ---- */
.site-footer{background:var(--teal-950);padding:56px 24px 0;color:rgba(255,255,255,.6);}
.footer-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;padding-bottom:44px;}
.f-about .abbr{font-family:'Playfair Display',serif;font-size:24px;color:#fff;font-weight:700;margin-bottom:8px;}
.f-about p{font-size:13px;line-height:1.7;margin-bottom:14px;}
.f-contact-item{display:flex;gap:10px;margin-bottom:10px;font-size:13px;}
.f-contact-item .ico{color:var(--teal-400);min-width:16px;}
.footer-col h4{font-family:'DM Sans',sans-serif;font-size:12px;font-weight:700;color:#fff;text-transform:uppercase;letter-spacing:.09em;margin-bottom:14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{color:rgba(255,255,255,.5);font-size:13px;transition:color .2s;}
.footer-col ul li a:hover{color:var(--teal-400);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:12px;color:rgba(255,255,255,.28);max-width:1280px;margin:0 auto;}

/* ---- PAPER LIST ---- */
.paper-card{background:#fff;border:1px solid var(--slate-200);border-radius:var(--radius-lg);padding:22px;margin-bottom:14px;transition:box-shadow .2s;}
.paper-card:hover{box-shadow:0 4px 20px rgba(74,29,122,.09);}
.paper-card .ptitle{font-family:'Playfair Display',serif;font-size:16px;color:var(--teal-900);margin-bottom:6px;}
.paper-card .pmeta{font-size:12.5px;color:var(--text-muted);display:flex;flex-wrap:wrap;gap:14px;margin-bottom:10px;}
.paper-card .pabstract{font-size:13px;color:var(--text-mid);line-height:1.6;}
.paper-card .pactions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;}

/* ---- PAGINATION ---- */
.pagination{display:flex;gap:6px;flex-wrap:wrap;margin-top:24px;}
.page-link{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--slate-200);font-size:13px;color:var(--text-mid);transition:all .2s;text-decoration:none;}
.page-link:hover,.page-link.active{background:var(--teal-700);color:#fff;border-color:var(--teal-700);}

/* ---- MODAL ---- */
.modal-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:900;align-items:center;justify-content:center;}
.modal-backdrop.open{display:flex;}
.modal{background:#fff;border-radius:var(--radius-xl);padding:36px;max-width:520px;width:90%;max-height:88vh;overflow-y:auto;position:relative;}

/* ---- RESPONSIVE ---- */
@media(max-width:1024px){
  .footer-inner{grid-template-columns:1fr 1fr;}
  .row{grid-template-columns:1fr;}
  .sidebar-layout{grid-template-columns:1fr;}
}
@media(max-width:768px){
  .main-nav{display:none;}
  .header-btns .btn-outline{display:none;}
  .row-3{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
  .section{padding:44px 16px;}
}