/* =========================================================================
   Tech Science Press - shared header / footer / buttons
   Same file is used on the publisher site AND inside the OJS theme.
   Everything is prefixed with .tsp- so it never fights with OJS styles.
   ========================================================================= */
:root{
  --tsp-navy:#1e3c72;
  --tsp-navy-dark:#0f1f41;
  --tsp-red:#c41e3a;
  --tsp-red-dark:#a3172f;
  --tsp-bg:#f6f8fb;
  --tsp-text:#1a1f2b;
  --tsp-muted:#5d667a;
  --tsp-line:#e2e7f0;
  --tsp-header-h:68px;
  --tsp-font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
.tsp-header,.tsp-header *,.tsp-footer,.tsp-footer *{box-sizing:border-box}
.tsp-header,.tsp-footer{font-family:var(--tsp-font);line-height:1.5}
.tsp-header a,.tsp-footer a{text-decoration:none}
.tsp-header ul,.tsp-footer ul{list-style:none;margin:0;padding:0}

.tsp-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- buttons ---------- */
.tsp-btn{text-decoration:none!important;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:0 20px;border-radius:8px;border:2px solid transparent;
  font:600 15px/1 var(--tsp-font);cursor:pointer;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s,transform .15s,box-shadow .2s}
.tsp-btn:focus-visible{outline:3px solid rgba(30,60,114,.35);outline-offset:2px}
.tsp-btn-red{background:var(--tsp-red);color:#fff!important}
.tsp-btn-red:hover{background:var(--tsp-red-dark);box-shadow:0 6px 16px rgba(196,30,58,.28);transform:translateY(-1px)}
.tsp-btn-outline{background:transparent;color:var(--tsp-navy)!important;border-color:var(--tsp-navy)}
.tsp-btn-outline:hover{background:var(--tsp-navy);color:#fff!important}
.tsp-btn-sm{min-height:36px;padding:0 14px;font-size:14px}

/* ---------- header ---------- */
.tsp-header{position:sticky;top:0;z-index:1000;background:#fff;
  border-bottom:1px solid var(--tsp-line);box-shadow:0 2px 12px rgba(15,31,65,.06)}
.tsp-header-bar{display:flex;align-items:center;gap:24px;min-height:var(--tsp-header-h)}
.tsp-logo{display:flex;align-items:center;gap:10px;color:var(--tsp-navy)!important;
  font-weight:800;font-size:21px;letter-spacing:-.2px;white-space:nowrap;flex:0 0 auto}
.tsp-logo svg{width:34px;height:34px;color:var(--tsp-red);flex:0 0 auto}

.tsp-nav{flex:1 1 auto;min-width:0}
.tsp-nav ul{display:flex;align-items:center;justify-content:center;gap:4px}
.tsp-nav a{display:block;padding:9px 14px;border-radius:8px;white-space:nowrap;
  color:var(--tsp-text);font-weight:600;font-size:15px;transition:background .2s,color .2s}
.tsp-nav a:hover{background:var(--tsp-bg);color:var(--tsp-navy)}
.tsp-nav a.is-active{color:var(--tsp-red);background:#fdf0f2}

.tsp-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.tsp-login{padding:9px 12px;font-weight:700;font-size:14px;letter-spacing:.4px;
  color:var(--tsp-navy)!important;border-radius:8px}
.tsp-login:hover{background:var(--tsp-bg)}

/* hamburger (hidden on desktop) */
.tsp-burger{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--tsp-line);
  border-radius:10px;background:#fff;cursor:pointer;padding:0;position:relative}
.tsp-burger span,.tsp-burger span::before,.tsp-burger span::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--tsp-navy);
  border-radius:2px;transition:transform .25s,opacity .2s,top .25s}
.tsp-burger span{top:21px}
.tsp-burger span::before{left:0;right:0;top:-7px}
.tsp-burger span::after{left:0;right:0;top:7px}
.tsp-burger[aria-expanded="true"] span{background:transparent}
.tsp-burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.tsp-burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* tablet + mobile: collapse menu */
@media (max-width:991px){
  .tsp-header-bar{flex-wrap:wrap;gap:0;min-height:60px}
  .tsp-logo{font-size:19px;min-height:60px}
  .tsp-burger{display:block}
  .tsp-nav,.tsp-actions{display:none;width:100%;flex:0 0 100%}
  .tsp-header.is-open .tsp-nav,.tsp-header.is-open .tsp-actions{display:block}
  .tsp-nav ul{flex-direction:column;align-items:stretch;gap:2px;padding:6px 0 8px;border-top:1px solid var(--tsp-line)}
  .tsp-nav a{padding:13px 12px;font-size:16px}
  .tsp-actions{padding:8px 0 18px}
  .tsp-header.is-open .tsp-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .tsp-actions .tsp-btn-red{grid-column:1 / -1;min-height:48px}
  .tsp-actions .tsp-login,.tsp-actions .tsp-btn-outline{min-height:46px;display:inline-flex;align-items:center;justify-content:center;
    border:2px solid var(--tsp-navy);border-radius:8px;font-size:14px}
  .tsp-header.is-open{max-height:100vh;overflow-y:auto}
}
@media (max-width:380px){.tsp-logo span{font-size:17px}.tsp-logo svg{width:28px;height:28px}}

/* ---------- footer ---------- */
.tsp-footer{background:var(--tsp-navy-dark);color:#c9d3ea;padding:56px 0 0;margin-top:0}
.tsp-footer h4{color:#fff;font-size:15px;letter-spacing:.6px;text-transform:uppercase;margin:0 0 16px}
.tsp-footer a{color:#c9d3ea;transition:color .2s}
.tsp-footer a:hover{color:#fff}
.tsp-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.tsp-footer li{margin-bottom:10px;font-size:15px}
.tsp-footer-brand p{font-size:15px;max-width:340px;margin:12px 0 0}
.tsp-footer .tsp-logo{color:#fff!important}
.tsp-footer .tsp-logo svg{color:#ff6b84}
.tsp-footer-bottom{margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;text-align:center;color:#93a1c4}
@media (max-width:900px){.tsp-footer-grid{grid-template-columns:1fr 1fr}.tsp-footer-brand{grid-column:1 / -1}}
@media (max-width:520px){.tsp-footer{padding-top:40px}.tsp-footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}}

/* =========================================================================
   OJS (Default theme child) overrides - colours, buttons, forms, login/register
   ========================================================================= */
body{font-family:var(--tsp-font);color:var(--tsp-text);background:var(--tsp-bg)}
a{color:var(--tsp-navy)}
a:hover,a:focus{color:var(--tsp-red)}
.pkp_structure_page{background:transparent;max-width:1200px;margin:0 auto}

/* journal header (below the publisher bar) */
.pkp_structure_head{background:#fff;border-bottom:1px solid var(--tsp-line);box-shadow:none}
.pkp_site_name .is_text,.pkp_site_name a{color:var(--tsp-navy)!important;font-weight:800}
.pkp_navigation_primary>li>a,.pkp_navigation_user>li>a{color:var(--tsp-navy)!important;font-weight:600}
.pkp_navigation_primary>li>a:hover,.pkp_navigation_user>li>a:hover{color:var(--tsp-red)!important;background:var(--tsp-bg)}
.pkp_navigation_primary ul{background:#fff;border:1px solid var(--tsp-line);box-shadow:0 10px 24px rgba(15,31,65,.12);border-radius:8px}
.pkp_navigation_primary ul a{color:var(--tsp-text)!important}

/* buttons */
.cmp_button,.cmp_form .buttons button,.cmp_form .buttons .submit,.pkp_button,button.submit,
.page_search .submit button,.obj_galley_link,a.action,.block_make_submission a{
  background:var(--tsp-red)!important;color:#fff!important;border:2px solid var(--tsp-red)!important;border-radius:8px!important;
  font-weight:700;font-size:15px;font-family:var(--tsp-font);padding:11px 22px;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:background .2s,box-shadow .2s}
.cmp_button:hover,.cmp_form .buttons button:hover,.pkp_button:hover,button.submit:hover,.obj_galley_link:hover,a.action:hover,.block_make_submission a:hover{
  background:var(--tsp-red-dark)!important;border-color:var(--tsp-red-dark)!important;box-shadow:0 6px 16px rgba(196,30,58,.25)}
.cmp_form .buttons a,.cmp_form .buttons .register,.cmp_form .buttons .login{
  display:inline-block;padding:11px 22px;border:2px solid var(--tsp-navy);border-radius:8px;color:var(--tsp-navy)!important;
  font-weight:700;text-decoration:none;background:transparent}
.cmp_form .buttons a:hover{background:var(--tsp-navy);color:#fff!important}

/* ---------- login / register / lost password ---------- */
body.pkp_page_login .pkp_structure_sidebar,body.pkp_page_user .pkp_structure_sidebar{display:none!important}
body.pkp_page_login .pkp_structure_main,body.pkp_page_user .pkp_structure_main{
  float:none!important;width:100%!important;max-width:none!important;padding:0 16px!important;margin:0!important}
body.pkp_page_login .pkp_structure_main::before,body.pkp_page_login .pkp_structure_main::after,
body.pkp_page_user .pkp_structure_main::before,body.pkp_page_user .pkp_structure_main::after{display:none!important}

.page_login,.page_register,.page_lost_password{
  max-width:520px;margin:clamp(24px,5vw,56px) auto;background:#fff;border:1px solid var(--tsp-line);border-radius:16px;
  box-shadow:0 18px 44px rgba(15,31,65,.10);padding:clamp(22px,5vw,40px);box-sizing:border-box}
.page_register{max-width:680px}
.page_login h1,.page_register h1,.page_lost_password h1{margin:0 0 6px;font-size:clamp(24px,5vw,30px);color:var(--tsp-navy);letter-spacing:-.3px}
.page_login .cmp_breadcrumbs,.page_register .cmp_breadcrumbs,.page_lost_password .cmp_breadcrumbs{display:none}
.page_login .description,.page_register .description,.page_lost_password p{color:var(--tsp-muted)}

.cmp_form fieldset{border:0;margin:0 0 18px;padding:0;min-width:0}
.cmp_form legend{font-weight:800;color:var(--tsp-navy);font-size:17px;padding:0;margin:8px 0 14px;
  border-bottom:2px solid var(--tsp-line);width:100%;padding-bottom:8px}
.cmp_form .fields>div,.cmp_form fieldset>div{margin:0 0 16px}
.cmp_form label{display:block}
.cmp_form .label{display:block;margin-bottom:6px;font-weight:700;font-size:14px;color:var(--tsp-text)}
.cmp_form .required{color:var(--tsp-red)}
.cmp_form input[type=text],.cmp_form input[type=email],.cmp_form input[type=password],.cmp_form input[type=url],
.cmp_form input[type=tel],.cmp_form select,.cmp_form textarea{
  width:100%!important;max-width:100%;box-sizing:border-box;height:48px;padding:0 14px;border:1px solid #cdd5e4;border-radius:10px;
  font:400 16px var(--tsp-font);color:var(--tsp-text);background:#fff;transition:border-color .2s,box-shadow .2s}
.cmp_form textarea{height:auto;padding:12px 14px;min-height:110px}
.cmp_form input:focus,.cmp_form select:focus,.cmp_form textarea:focus{outline:none;border-color:var(--tsp-navy);box-shadow:0 0 0 4px rgba(30,60,114,.14)}
.cmp_form .remember label,.cmp_form .optin label,.cmp_form .consent label,.cmp_form .checkbox label{display:flex;gap:10px;align-items:flex-start;font-weight:500}
.cmp_form input[type=checkbox],.cmp_form input[type=radio]{width:18px;height:18px;margin:3px 0 0;accent-color:var(--tsp-red);flex:0 0 auto}
.cmp_form .buttons{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:8px}
.cmp_form .buttons>*{flex:1 1 150px;text-align:center}
.cmp_form .lost_password,.cmp_form a.lost_password{font-size:14px}
.cmp_notification,.pkp_form_error,.cmp_form .error{border-radius:10px}
.cmp_notification{padding:12px 16px;background:#fdf0f2;border:1px solid #f3c4cd;color:#7a1425;margin-bottom:16px}
@media (max-width:480px){.cmp_form .buttons>*{flex:1 1 100%}}

/* ---------- general content: tablet / phone ---------- */
.obj_issue_summary,.obj_article_summary,.cmp_article_list>li{background:#fff;border:1px solid var(--tsp-line);border-radius:12px;padding:16px 18px}
.pkp_block .title{color:var(--tsp-navy)}
.pkp_structure_footer_wrapper{background:var(--tsp-navy-dark);color:#c9d3ea;margin-top:40px}
.pkp_structure_footer_wrapper a{color:#fff}
.pkp_structure_footer_wrapper .pkp_footer_content{color:#c9d3ea}
img,table{max-width:100%}
@media (max-width:767px){
  .pkp_structure_page{overflow-x:hidden}
  .pkp_structure_content{padding-left:0;padding-right:0}
  table{display:block;overflow-x:auto}
}