/* Katedra Inżynierii Konwersji Energii (K78) — styl doraźny (2026)
   Odwzorowuje szablon serwisów W9 na portalu PWr (spalanie.pwr.edu.pl, fuel.pwr.edu.pl, wme.pwr.edu.pl):
   wartości z ich style.css — motyw W9: --edu-main-color #f5a248, --edu-hover-color #e58012. */
:root{
  --edu-main-color:#f5a248;
  --edu-hover-color:#e58012;
  --edu-link-color:#f5a248;
  --grey-bg:#f4f4f4;
  --grey-hover:#e9e9e9;
  --line:#dcdddf;
  --title:#4b4b4b;
  --crumb:#7a7a7a;
  --font:"Proxima Nova","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body.front-app{margin:0;background:#fff;color:#000;font-family:var(--font);font-size:14px;line-height:1.5}
img{max-width:100%;height:auto;vertical-align:middle}
p{margin:0 0 1rem}
.front-app a{color:var(--edu-link-color);text-decoration:none}
.front-app a:hover{color:var(--edu-hover-color);text-decoration:underline}
.container{max-width:1030px;margin:0 auto;padding:0 12px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:8px;background:#fff;padding:6px 10px;z-index:10}

/* nagłówek: logo PWr po lewej, nazwa jednostki po prawej */
header.top{display:flex;align-items:center;justify-content:space-between;min-height:120px;gap:16px}
header.top .logo{display:block;width:270px;height:115px;overflow:hidden;flex:0 0 auto}
header.top .logo img{max-width:none;width:1000px;height:115px}   /* lewa część grafiki naglowek.png = logo PWr + WME */
header.top .portal-title{margin:0;max-width:450px;text-align:right;font-size:1.714em;line-height:1.2em;font-weight:400;letter-spacing:.2px}
header.top .portal-title a{color:var(--title);text-decoration:none}

/* menu główne: szary pasek, kropkowane separatory, aktywna zakładka w kolorze W9 */
.main-menu{position:relative;background:var(--grey-bg);border-bottom:2px solid var(--grey-hover);margin-top:16px}
.main-menu .menu{list-style:none;margin:0;padding:0;display:flex}
.main-menu .main-dropdown{position:relative;flex:1 1 0}
.main-menu .main-dropdown>a{display:block;text-align:center;color:#000;font-size:15px;letter-spacing:.5px;padding:12px 0;text-decoration:none}
.main-menu .main-dropdown>a span{display:block;padding:0 10px;border-right:2px dotted #ccc}
.main-menu .main-dropdown:last-child>a span{border-right:0}
.main-menu .main-dropdown.dropdown>a span::after{content:"";display:inline-block;margin-left:10px;vertical-align:middle;
  border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid #626262}
.main-menu .main-dropdown>a:hover{background:var(--grey-hover);text-decoration:none;color:#000}
.main-menu .main-dropdown.active>a,.main-menu .main-dropdown.active>a:hover{background:var(--edu-main-color);color:#fff;text-decoration:underline}
.main-menu .main-dropdown.active>a span{border-color:transparent}
.main-menu .main-dropdown.active.dropdown>a span::after{border-top-color:#fff}
.main-menu .sub{list-style:none;margin:0;padding:6px 0;position:absolute;left:0;top:100%;min-width:100%;width:max-content;max-width:320px;
  background:#fff;border-top:2px solid var(--edu-main-color);box-shadow:0 4px 20px rgba(0,0,0,.1);display:none;z-index:20}
.main-menu .sub a{display:block;padding:7px 16px;color:#333;font-size:13px;text-decoration:none}
.main-menu .sub a:hover{background:var(--edu-main-color);color:#fff;text-decoration:none}
.main-menu .main-dropdown:hover .sub,.main-menu .main-dropdown:focus-within .sub{display:block}
.nav-toggle,.navbar-toggler{display:none}

/* układ: treść (prawa, 3/4) + panel boczny (lewa, 1/4) — jak col-lg-9 / col-lg-3 */
.columns{display:grid;grid-template-columns:3fr 9fr;gap:24px;margin-top:32px;align-items:start}
.columns .sidebar{grid-column:1;grid-row:1}
.columns .main{grid-column:2;grid-row:1;min-width:0}

/* panel boczny: drzewo serwisu + „Ważne linki” */
.alt-nav{background:var(--grey-bg)}
.alt-nav ul{list-style:none;margin:0;padding:0}
.alt-nav li a{display:block;color:#333;font-weight:600;border-left:4px solid var(--grey-bg);text-decoration:none;transition:.2s all}
.alt-nav li a span{display:block;margin:0 6px 0 5px;padding:6px 0 6px 6px;border-bottom:2px dotted #fff}
.alt-nav li a:hover,.alt-nav li a.active{background:var(--edu-main-color);border-color:rgba(0,0,0,.1);color:#fff;text-decoration:none}
.alt-nav li a:hover span,.alt-nav li a.active span{border-color:var(--edu-main-color)}
.alt-nav li li a{padding-left:15px;font-weight:400}
.alt-nav li li a.active{background:transparent;color:var(--edu-main-color);border-color:var(--grey-bg)}
.sidebar{position:sticky;top:12px}
.side-title{font-size:1.714em;font-weight:300;line-height:1.2em;margin:40px 0 16px;color:#000}
.list-default{list-style:none;margin:0;padding:0}
.list-default li{border-bottom:1px solid var(--line)}
.list-default li a{display:block;position:relative;padding:10px 0 10px 22px}
.list-default li a::before{content:"";position:absolute;left:6px;top:50%;margin-top:-4px;border-top:4px solid transparent;border-bottom:4px solid transparent;border-left:5px solid var(--edu-main-color)}

/* treść */
.main h1{font-size:2.725em;line-height:1.2em;font-weight:300;margin:0 0 1.5rem;color:#000}
.main h2{font-size:2.286em;line-height:1.2em;font-weight:300;margin:2.5rem 0 1rem;color:#000}
.main h3{font-size:1.714em;line-height:1.3em;font-weight:300;margin:1.5rem 0 .5rem;color:#000}
.main section{scroll-margin-top:16px}
.main section+section{border-top:1px solid var(--line);margin-top:2rem}
.main ul{padding-left:1.25rem}
.main table{width:100%;border-collapse:collapse;margin:0 0 1rem}
.main td,.main th{vertical-align:top;padding:12px 10px;text-align:left}
.main table.people td{border-bottom:1px solid var(--line)}
.main table.people td:first-child{width:200px}
.main table.plain td{padding:4px 0}
.main table th{background:var(--grey-bg);color:#000;font-weight:600;font-size:1.1em;padding:10px 12px;border-left:4px solid var(--edu-main-color)}
.main iframe{max-width:100%;border:0}
.main .item p{margin-bottom:.5rem}
.extra{background:var(--grey-bg);padding:8px 12px;border-left:4px solid var(--edu-main-color);font-size:.95em}
.toc{columns:2;column-gap:32px;margin:0 0 1rem}
.topics{columns:2;column-gap:32px}

/* stopka i pasek praw — kolory serwisu (footer.colored / credits.colored) */
.footer.colored{background:var(--edu-main-color);color:#fff;margin-top:48px;padding:30px 0 5px;font-size:.929em;line-height:1.4em}
.footer.colored a{color:#fff}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;align-items:center;padding-bottom:24px}
.footer-text{text-align:center}
.credits.colored{background:var(--edu-hover-color);color:#fff;text-align:center;padding:15px 0;font-size:.929em}

/* telefon / tablet */
@media (max-width:991px){
  .columns{grid-template-columns:1fr}
  .columns .sidebar{grid-column:1;grid-row:2;position:static}
  .columns .main{grid-column:1;grid-row:1}
  header.top .portal-title{font-size:1.3em}
}
@media (max-width:767px){
  header.top{min-height:80px}
  header.top .logo{width:189px;height:81px}
  header.top .logo img{width:700px;height:81px}
  header.top .portal-title{font-size:1.05em;max-width:55%}
  .navbar-toggler{display:flex;align-items:center;gap:10px;height:44px;padding:0 20px;background:var(--edu-main-color);color:#fff;
    font-weight:600;letter-spacing:1px;cursor:pointer;border-bottom:2px solid rgba(0,0,0,.1)}
  .hamburger i{display:block;width:20px;height:3px;background:#fff;margin:3px 0}
  .main-menu .menu{display:none;flex-direction:column}
  .nav-toggle:checked~.menu{display:flex}
  .main-menu .main-dropdown>a{text-align:left;background:var(--edu-main-color);color:#fff;border-bottom:1px solid rgba(0,0,0,.1)}
  .main-menu .main-dropdown>a span{border-right:0;padding:0 20px}
  .main-menu .sub{position:static;display:block;box-shadow:none;border:0;max-width:none;background:#fff}
  .main-menu .sub a{padding-left:36px}
  .main h1{font-size:2em}.main h2{font-size:1.7em}.main h3{font-size:1.35em}
  .main table.people,.main table.people tbody,.main table.people tr,.main table.people td{display:block;width:100% !important}
  .main table.people td{border-bottom:0;padding:6px 0}
  .main table.people tr{border-bottom:1px solid var(--line);padding:8px 0}
  .toc,.topics{columns:1}
  .footer-grid{grid-template-columns:1fr;text-align:center}
  .footer-logo{text-align:center}
}
@media print{.main-menu,.sidebar,.footer,.credits,.skip{display:none}.columns{display:block}}