:root{
  --bg: #F8FAFC;
  --panel: rgba(255,255,255,.86);
  --panel-2: rgba(255,255,255,.70);
  --surface: rgba(239,246,255,.72);
  --text: #1E293B;
  --muted: #64748B;
  --border: rgba(15,23,42,.10);
  --accent: #2563EB;
  --accent-rgb: 37,99,235;
  --accent-2: #F59E0B;
  --accent-2-rgb: 245,158,11;
  --shadow: 0 18px 45px rgba(15,23,42,.12);
  --radius: 22px;
  --reveal-dy: 42px;

  --nav-bg: rgba(255,255,255,.86);
  --nav-bg-compact: rgba(255,255,255,.96);

  --page-accent: #2563EB;
  --page-accent-rgb: 37,99,235;
  --page-accent-text: #FFFFFF;
}

body{
  background:
    radial-gradient(900px 560px at 12% 0%, rgba(56,189,248,.18), transparent 62%),
    radial-gradient(820px 520px at 92% 8%, rgba(245,158,11,.18), transparent 58%),
    radial-gradient(740px 420px at 50% 100%, rgba(20,184,166,.12), transparent 62%),
    var(--bg);
}

body::before{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("/assets/img/sites/tatalucusia/patterns/tl-pt-grid-math--512.png");
  background-repeat: repeat;
  background-size: 512px 512px;
  opacity: .11;
  z-index: 0;
}

.hero,
.section{
  position: relative;
  z-index: 1;
}

.site-nav{
  background: var(--nav-bg) !important;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(15,23,42,.05);
}

.site-nav.nav--compact{
  background: var(--nav-bg-compact) !important;
  box-shadow: 0 12px 28px rgba(15,23,42,.10);
}

.navbar .navbar-brand{
  color: var(--text) !important;
  font-weight: 800;
}

.navbar .nav-link{
  color: var(--muted) !important;
  font-weight: 600;
}

.navbar .nav-link:hover{
  color: var(--accent) !important;
}

.brand-logo{
  height: 34px;
  width: auto;
}

.site-nav .navbar-toggler{
  border-color: rgba(37,99,235,.25);
}

.site-nav .navbar-toggler:focus{
  box-shadow: 0 0 0 .25rem rgba(37,99,235,.14);
}

.site-nav .navbar-toggler-icon{
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%232563EB' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.4' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.card{
  background:
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.78));
  border: 1px solid var(--border);
  box-shadow: 0 10px 28px rgba(15,23,42,.06);
}

.card:hover{
  box-shadow: var(--shadow);
  border-color: rgba(37,99,235,.20);
}

.section--alt{
  background:
    linear-gradient(180deg, rgba(239,246,255,.72), rgba(255,255,255,.44));
  border-top: 1px solid rgba(37,99,235,.08);
  border-bottom: 1px solid rgba(37,99,235,.08);
  position: relative;
  overflow: hidden;
}

.section--alt::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(580px 260px at 18% 18%, rgba(37,99,235,.08), transparent 60%),
    radial-gradient(540px 260px at 86% 30%, rgba(245,158,11,.12), transparent 60%);
  pointer-events:none;
}

.text-muted{
  color: var(--muted) !important;
}

a{
  color: var(--accent);
}

a:hover{
  color: #1D4ED8;
}

.btn-primary{
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(37,99,235,.18);
}

.btn-primary:hover,
.btn-primary:focus{
  background: #1D4ED8;
  border-color: #1D4ED8;
  color: #fff;
}

.btn-outline-secondary{
  border-color: rgba(37,99,235,.20) !important;
  color: var(--accent) !important;
  background: rgba(255,255,255,.58) !important;
  font-weight: 700;
}

.btn-outline-secondary:hover{
  border-color: rgba(37,99,235,.34) !important;
  background: rgba(37,99,235,.08) !important;
  color: #1D4ED8 !important;
}

.form-control,
.form-select{
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(15,23,42,.12);
  color: var(--text);
}

.form-control::placeholder{
  color: rgba(100,116,139,.78);
}

.form-control:focus,
.form-select:focus{
  border-color: rgba(37,99,235,.38);
  box-shadow: 0 0 0 .25rem rgba(37,99,235,.13);
}

.hero{
  padding: 76px 0 58px;
}

.hero .lead{
  color: var(--muted);
  max-width: 62ch;
}

.hero-badges .badge{
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(37,99,235,.14);
  color: #334155;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(15,23,42,.06);
}

.tl-hero-card{
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,.95), rgba(239,246,255,.84));
}

.tl-hero-card::before{
  content:"";
  position:absolute;
  width: 280px;
  height: 280px;
  right: -90px;
  top: -80px;
  background: rgba(245,158,11,.18);
  border-radius: 999px;
  filter: blur(2px);
}

.tl-hero-img{
  position: relative;
  z-index: 1;
  width: min(380px, 100%);
  height: auto;
  margin: 0 auto;
  display: block;
  filter: drop-shadow(0 18px 30px rgba(15,23,42,.14));
}

.tl-card-icon{
  width: 74px;
  height: 74px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 10px 18px rgba(15,23,42,.12));
}

.icon3d,
.tag-pill__ic{
  filter: drop-shadow(0 8px 14px rgba(15,23,42,.12));
}

.tag-pill{
  background: rgba(255,255,255,.76) !important;
}

.fr-pagination .page-link{
  color: var(--accent);
  border-color: rgba(37,99,235,.22);
  background: rgba(255,255,255,.70);
}

.fr-pagination .page-link:hover{
  color: #1D4ED8;
  background: rgba(37,99,235,.08);
  border-color: rgba(37,99,235,.36);
}

.fr-pagination__input{
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.fr-pagination__input:hover,
.fr-pagination__input:focus{
  background: #1D4ED8;
  border-color: #1D4ED8;
  color: #fff;
}

.fr-pagination__total{
  color: var(--muted) !important;
  border-color: rgba(15,23,42,.12) !important;
  background: rgba(255,255,255,.56) !important;
}

mark.hl{
  background: rgba(245,158,11,.28);
  color: inherit;
}

.post-excerpt{
  border-color: rgba(37,99,235,.16);
  background: rgba(37,99,235,.06);
  color: var(--text);
}

.tl-badge-icon{
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: inline-block;
  margin-right: 6px;
  vertical-align: -5px;
  filter: drop-shadow(0 5px 9px rgba(15,23,42,.12));
}

.tl-card-icon--center{
  margin-left: auto;
  margin-right: auto;
}

.tl-card-icon--sm{
  width: 58px;
  height: 58px;
}

.tl-inline-card-head{
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.tl-inline-card-head .tl-card-icon{
  flex: 0 0 auto;
  margin-bottom: 0;
}

.tl-author-icon{
  width: 82px;
  height: 82px;
  object-fit: contain;
  display: block;
  margin: 0 auto 16px;
  filter: drop-shadow(0 10px 18px rgba(15,23,42,.12));
}

/* Article page - Tata Lucusia light theme */
.post-article{
  position: relative;
  z-index: 1;
}

.post-header{
  border-color: rgba(37,99,235,.14);
  background:
    radial-gradient(520px 220px at 12% 0%, rgba(37,99,235,.10), transparent 64%),
    radial-gradient(520px 220px at 88% 8%, rgba(245,158,11,.12), transparent 64%),
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(239,246,255,.86));
  box-shadow: 0 18px 45px rgba(15,23,42,.08);
}

.post-kicker{
  color: #2563EB;
  background: rgba(37,99,235,.08);
  border-color: rgba(37,99,235,.22);
}

.post-title{
  color: #1E293B;
}

.post-meta-bar,
.post-meta-item{
  color: #64748B;
}

.post-meta-item strong{
  color: #1E293B;
}

.post-excerpt{
  border-color: rgba(37,99,235,.16);
  background:
    linear-gradient(180deg, rgba(239,246,255,.92), rgba(255,255,255,.78));
  color: #1E293B;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
}

.post-content-card{
  margin-top: 22px;
  padding: clamp(20px, 4vw, 34px);
  border: 1px solid rgba(37,99,235,.12);
  border-radius: 26px;
  background:
    radial-gradient(620px 240px at 0% 0%, rgba(37,99,235,.055), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,250,252,.90));
  box-shadow: 0 18px 45px rgba(15,23,42,.08);
}

.post-prose{
  color: #243044;
}

.post-prose p,
.post-prose li{
  color: #243044;
}

.post-prose strong,
.post-prose b{
  color: #111827;
}

.post-prose h2,
.post-prose h3{
  color: #1E293B;
}

.post-prose blockquote{
  border-left-color: rgba(37,99,235,.45);
  background: rgba(239,246,255,.82);
  color: #334155;
}

.post-prose a{
  color: #2563EB;
}

.post-prose a:hover{
  color: #1D4ED8;
}

.post-prose code{
  color: #1E293B;
  background: rgba(37,99,235,.08);
  border-radius: 6px;
  padding: .08em .32em;
}

.post-prose ul,
.post-prose ol{
  margin-top: .65em;
  margin-bottom: 1em;
  padding-left: 1.35em;
}

.post-prose li{
  margin-bottom: .22em;
  padding-left: .08em;
}

.post-prose li:last-child{
  margin-bottom: 0;
}

.post-prose li > p{
  margin-top: 0;
  margin-bottom: 0;
}

.post-prose li > p + p{
  margin-top: .55em;
}

@media (max-width: 575.98px){
  .post-content-card{
    margin-top: 18px;
  }
}

.post-prose blockquote{
  margin: 1.3em 0 1.6em;
  padding: 18px 20px;
  border: 1px solid rgba(37,99,235,.18);
  border-left: 6px solid rgba(245,158,11,.78);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(245,158,11,.14), rgba(37,99,235,.07));
  box-shadow: 0 12px 28px rgba(15,23,42,.08);
  color: #1E293B;
}

.post-prose blockquote p{
  margin: 0 0 .45em;
}

.post-prose blockquote p:last-child{
  margin-bottom: 0;
}

.post-prose blockquote strong{
  color: #0F172A;
}

.post-prose blockquote em{
  color: #0F172A;
  font-style: normal;
  font-weight: 800;
  letter-spacing: .01em;
}
/* MathJax - wzory matematyczne */
.mathjax-help{
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid rgba(37,99,235,.16);
  border-radius: 16px;
  background: rgba(239,246,255,.82);
  color: #334155;
  font-size: .94rem;
  line-height: 1.55;
}

.mathjax-help strong{
  color: #0F172A;
}

.mathjax-help code{
  color: #1E293B;
  background: rgba(37,99,235,.09);
  border-radius: 7px;
  padding: .08em .34em;
  white-space: nowrap;
}

.mathjax-content mjx-container{
  max-width: 100%;
}

.mathjax-content mjx-container[jax="CHTML"][display="true"]{
  display: block;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: .45em .15em .65em;
  margin: 1.1em 0;
}

.mathjax-content mjx-container[jax="CHTML"] mjx-math{
  max-width: none;
}

.mathjax-content .MathJax{
  max-width: 100%;
}

.tiptap-preview.mathjax-content mjx-container[jax="CHTML"][display="true"]{
  margin: .9em 0;
}

@media (max-width: 575.98px){
  .mathjax-help{
    font-size: .88rem;
  }

  .mathjax-help code{
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .mathjax-content mjx-container[jax="CHTML"][display="true"]{
    font-size: .96em;
    padding-bottom: .8em;
  }
}

/* Karty zadan w artykulach */
.post-prose .tl-task-card{
  margin: 2em 0;
  padding: clamp(16px, 3vw, 24px);
  border: 1px solid rgba(37,99,235,.16);
  border-radius: 26px;
  background:
    radial-gradient(520px 220px at 0% 0%, rgba(37,99,235,.10), transparent 62%),
    radial-gradient(460px 220px at 100% 0%, rgba(245,158,11,.14), transparent 58%),
    linear-gradient(180deg, rgba(239,246,255,.96), rgba(255,255,255,.92));
  box-shadow: 0 18px 42px rgba(15,23,42,.10);
  color: #1E293B;
  max-width: 100%;
  overflow: hidden;
}

.post-prose .tl-task-section{
  margin: 0;
  padding: clamp(14px, 2.4vw, 20px);
  border: 1px solid rgba(15,23,42,.08);
  border-radius: 20px;
  background: rgba(255,255,255,.78);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
}

.post-prose .tl-task-section + .tl-task-section{
  margin-top: 14px;
}

.post-prose .tl-task-section h3{
  margin: 0 0 .65em;
  color: #0F172A;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.25;
  font-weight: 850;
  letter-spacing: -.01em;
}

.post-prose .tl-task-section p{
  margin: 0 0 .9em;
  color: #243044;
}

.post-prose .tl-task-section p:last-child{
  margin-bottom: 0;
}

.post-prose .tl-task-section ul,
.post-prose .tl-task-section ol{
  margin: .55em 0 0;
  padding-left: 1.25em;
}

.post-prose .tl-task-section li{
  margin-bottom: .32em;
  padding-left: .08em;
  color: #243044;
}

.post-prose .tl-task-section li:last-child{
  margin-bottom: 0;
}

.post-prose .tl-task-question{
  border-color: rgba(37,99,235,.18);
  background:
    linear-gradient(180deg, rgba(239,246,255,.96), rgba(219,234,254,.70));
}

.post-prose .tl-task-plan{
  border-color: rgba(245,158,11,.22);
  background:
    linear-gradient(180deg, rgba(255,251,235,.96), rgba(254,243,199,.64));
}

.post-prose .tl-task-steps{
  border-color: rgba(20,184,166,.20);
  background:
    linear-gradient(180deg, rgba(240,253,250,.96), rgba(204,251,241,.52));
}

.post-prose .tl-task-mistakes{
  border-color: rgba(245,158,11,.28);
  background:
    linear-gradient(180deg, rgba(255,247,237,.96), rgba(255,237,213,.62));
}

.post-prose .tl-task-answer{
  border-color: rgba(34,197,94,.24);
  background:
    linear-gradient(180deg, rgba(240,253,244,.96), rgba(220,252,231,.66));
}

.post-prose .tl-task-answer summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  color: #14532D;
  font-weight: 850;
  line-height: 1.35;
  list-style: none;
  outline: none;
}

.post-prose .tl-task-answer summary::-webkit-details-marker{
  display: none;
}

.post-prose .tl-task-answer summary::after{
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(34,197,94,.14);
  border: 1px solid rgba(34,197,94,.24);
  color: #166534;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 900;
}

.post-prose .tl-task-answer[open] summary{
  margin-bottom: .85em;
  padding-bottom: .85em;
  border-bottom: 1px solid rgba(34,197,94,.18);
}

.post-prose .tl-task-answer[open] summary::after{
  content: "-";
}

.post-prose .tl-task-card mjx-container{
  max-width: 100%;
}

.post-prose .tl-task-card mjx-container[jax="CHTML"][display="true"]{
  margin: .8em 0;
  padding: .6em .45em .7em;
  border-radius: 14px;
  background: rgba(255,255,255,.62);
  overflow-x: auto;
  overflow-y: hidden;
}

@media (max-width: 575.98px){
  .post-prose .tl-task-card{
    margin: 1.55em 0;
    padding: 14px;
    border-radius: 22px;
  }

  .post-prose .tl-task-section{
    padding: 14px;
    border-radius: 17px;
  }

  .post-prose .tl-task-section + .tl-task-section{
    margin-top: 12px;
  }

  .post-prose .tl-task-answer summary{
    align-items: flex-start;
  }

  .post-prose .tl-task-answer summary::after{
    width: 28px;
    height: 28px;
    font-size: 1.05rem;
  }

  .post-prose .tl-task-card mjx-container[jax="CHTML"][display="true"]{
    font-size: .94em;
  }
}

/* Rozwijane sekcje w kartach zadan */
.post-prose .tl-task-steps summary,
.post-prose .tl-task-answer summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 850;
  line-height: 1.35;
  list-style: none;
  outline: none;
}

.post-prose .tl-task-steps summary{
  color: #115E59;
}

.post-prose .tl-task-answer summary{
  color: #14532D;
}

.post-prose .tl-task-steps summary::-webkit-details-marker,
.post-prose .tl-task-answer summary::-webkit-details-marker{
  display: none;
}

.post-prose .tl-task-steps summary::after,
.post-prose .tl-task-answer summary::after{
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 900;
}

.post-prose .tl-task-steps summary::after{
  background: rgba(20,184,166,.14);
  border: 1px solid rgba(20,184,166,.24);
  color: #0F766E;
}

.post-prose .tl-task-answer summary::after{
  background: rgba(34,197,94,.14);
  border: 1px solid rgba(34,197,94,.24);
  color: #166534;
}

.post-prose .tl-task-steps[open] summary,
.post-prose .tl-task-answer[open] summary{
  margin-bottom: .85em;
  padding-bottom: .85em;
}

.post-prose .tl-task-steps[open] summary{
  border-bottom: 1px solid rgba(20,184,166,.18);
}

.post-prose .tl-task-answer[open] summary{
  border-bottom: 1px solid rgba(34,197,94,.18);
}

.post-prose .tl-task-steps[open] summary::after,
.post-prose .tl-task-answer[open] summary::after{
  content: "-";
}

/* Tata Lucusia BiZ - ramki, karty zadan i placeholdery aplikacji */

.post-prose .tl-biz-callout{
  margin: 1.45em 0;
  padding: clamp(15px, 2.6vw, 21px);
  border: 1px solid rgba(37,99,235,.16);
  border-radius: 22px;
  background:
    radial-gradient(420px 180px at 0% 0%, rgba(37,99,235,.07), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,250,252,.88));
  box-shadow: 0 12px 30px rgba(15,23,42,.07);
  color: #1E293B;
  overflow: hidden;
}

.post-prose .tl-biz-callout p{
  margin: 0 0 .85em;
  color: #243044;
}

.post-prose .tl-biz-callout p:last-child{
  margin-bottom: 0;
}

.post-prose .tl-biz-callout ul,
.post-prose .tl-biz-callout ol{
  margin: .7em 0 0;
  padding-left: 1.25em;
}

.post-prose .tl-biz-callout li{
  margin-bottom: .28em;
}

.post-prose .tl-biz-callout-label{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 .8em;
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(37,99,235,.10);
  color: #1D4ED8;
  font-size: .82rem;
  font-weight: 850;
  line-height: 1.1;
  letter-spacing: .025em;
  text-transform: uppercase;
}

.post-prose .tl-biz-callout-label::before{
  content: "●";
  font-size: .65em;
  line-height: 1;
  opacity: .85;
}

.post-prose .tl-biz-definition{
  border-color: rgba(37,99,235,.22);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(37,99,235,.11), transparent 62%),
    linear-gradient(180deg, rgba(239,246,255,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-definition .tl-biz-callout-label{
  background: rgba(37,99,235,.12);
  color: #1D4ED8;
}

.post-prose .tl-biz-remember{
  border-color: rgba(20,184,166,.22);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(20,184,166,.10), transparent 62%),
    linear-gradient(180deg, rgba(240,253,250,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-remember .tl-biz-callout-label{
  background: rgba(20,184,166,.13);
  color: #0F766E;
}

.post-prose .tl-biz-warning{
  border-color: rgba(245,158,11,.30);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(245,158,11,.14), transparent 62%),
    linear-gradient(180deg, rgba(255,251,235,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-warning .tl-biz-callout-label{
  background: rgba(245,158,11,.18);
  color: #B45309;
}

.post-prose .tl-biz-curiosity{
  border-color: rgba(168,85,247,.24);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(168,85,247,.11), transparent 62%),
    linear-gradient(180deg, rgba(250,245,255,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-curiosity .tl-biz-callout-label{
  background: rgba(168,85,247,.14);
  color: #7E22CE;
}

.post-prose .tl-biz-matura{
  border-color: rgba(236,72,153,.24);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(236,72,153,.10), transparent 62%),
    linear-gradient(180deg, rgba(253,242,248,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-matura .tl-biz-callout-label{
  background: rgba(236,72,153,.13);
  color: #BE185D;
}

.post-prose .tl-biz-example{
  border-color: rgba(14,165,233,.22);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(14,165,233,.10), transparent 62%),
    linear-gradient(180deg, rgba(240,249,255,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-example .tl-biz-callout-label{
  background: rgba(14,165,233,.13);
  color: #0369A1;
}

.post-prose .tl-biz-calculation{
  border-color: rgba(34,197,94,.25);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(34,197,94,.10), transparent 62%),
    linear-gradient(180deg, rgba(240,253,244,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-calculation .tl-biz-callout-label{
  background: rgba(34,197,94,.13);
  color: #15803D;
}

.post-prose .tl-biz-mini-task{
  border-color: rgba(37,99,235,.26);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(37,99,235,.12), transparent 62%),
    radial-gradient(380px 160px at 100% 0%, rgba(245,158,11,.13), transparent 60%),
    linear-gradient(180deg, rgba(239,246,255,.98), rgba(255,255,255,.93));
}

.post-prose .tl-biz-mini-task .tl-biz-callout-label{
  background: rgba(37,99,235,.13);
  color: #1D4ED8;
}

.post-prose .tl-biz-student-error{
  border-color: rgba(239,68,68,.24);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(239,68,68,.10), transparent 62%),
    linear-gradient(180deg, rgba(254,242,242,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-student-error .tl-biz-callout-label{
  background: rgba(239,68,68,.13);
  color: #B91C1C;
}

.post-prose .tl-biz-app{
  border-color: rgba(99,102,241,.24);
  background:
    radial-gradient(430px 170px at 0% 0%, rgba(99,102,241,.11), transparent 62%),
    linear-gradient(180deg, rgba(238,242,255,.98), rgba(255,255,255,.92));
}

.post-prose .tl-biz-app .tl-biz-callout-label{
  background: rgba(99,102,241,.13);
  color: #4338CA;
}

.post-prose .tl-biz-answer{
  margin: 1em 0 1.35em;
  padding: 0;
  border: 1px solid rgba(34,197,94,.24);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(240,253,244,.96), rgba(255,255,255,.92));
  overflow: hidden;
}

.post-prose .tl-biz-answer summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  padding: 15px 18px;
  color: #14532D;
  font-weight: 850;
  line-height: 1.35;
  list-style: none;
  outline: none;
}

.post-prose .tl-biz-answer summary::-webkit-details-marker{
  display: none;
}

.post-prose .tl-biz-answer summary::after{
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(34,197,94,.14);
  border: 1px solid rgba(34,197,94,.24);
  color: #166534;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 900;
}

.post-prose .tl-biz-answer[open] summary{
  border-bottom: 1px solid rgba(34,197,94,.18);
}

.post-prose .tl-biz-answer[open] summary::after{
  content: "-";
}

.post-prose .tl-biz-answer > *:not(summary){
  margin-left: 18px;
  margin-right: 18px;
}

.post-prose .tl-biz-answer > p:first-of-type,
.post-prose .tl-biz-answer > ul:first-of-type,
.post-prose .tl-biz-answer > ol:first-of-type,
.post-prose .tl-biz-answer > div:first-of-type{
  margin-top: 15px;
}

.post-prose .tl-biz-answer > p:last-child,
.post-prose .tl-biz-answer > ul:last-child,
.post-prose .tl-biz-answer > ol:last-child,
.post-prose .tl-biz-answer > div:last-child{
  margin-bottom: 18px;
}

.post-prose .tl-biz-task-card{
  margin: 2em 0;
  padding: clamp(16px, 3vw, 24px);
  border: 1px solid rgba(37,99,235,.16);
  border-radius: 26px;
  background:
    radial-gradient(520px 220px at 0% 0%, rgba(37,99,235,.10), transparent 62%),
    radial-gradient(460px 220px at 100% 0%, rgba(245,158,11,.14), transparent 58%),
    linear-gradient(180deg, rgba(239,246,255,.96), rgba(255,255,255,.92));
  box-shadow: 0 18px 42px rgba(15,23,42,.10);
  color: #1E293B;
  max-width: 100%;
  overflow: hidden;
}

.post-prose .tl-biz-task-card > h3{
  margin-top: 0;
}

.post-prose .tl-biz-task-section{
  margin: 0;
  padding: clamp(14px, 2.4vw, 20px);
  border: 1px solid rgba(15,23,42,.08);
  border-radius: 20px;
  background: rgba(255,255,255,.78);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.72);
}

.post-prose .tl-biz-task-section + .tl-biz-task-section{
  margin-top: 14px;
}

.post-prose .tl-biz-task-section p{
  margin: 0 0 .9em;
}

.post-prose .tl-biz-task-section p:last-child{
  margin-bottom: 0;
}

.post-prose .tl-biz-task-question{
  border-color: rgba(37,99,235,.18);
  background:
    linear-gradient(180deg, rgba(239,246,255,.96), rgba(219,234,254,.70));
}

.post-prose .tl-biz-task-source{
  border-color: rgba(100,116,139,.18);
  background:
    linear-gradient(180deg, rgba(248,250,252,.98), rgba(241,245,249,.82));
}

.post-prose .tl-biz-task-plan{
  border-color: rgba(245,158,11,.22);
  background:
    linear-gradient(180deg, rgba(255,251,235,.96), rgba(254,243,199,.64));
}

.post-prose .tl-biz-task-steps{
  border-color: rgba(20,184,166,.20);
  background:
    linear-gradient(180deg, rgba(240,253,250,.96), rgba(204,251,241,.52));
}

.post-prose .tl-biz-task-answer{
  border-color: rgba(34,197,94,.24);
  background:
    linear-gradient(180deg, rgba(240,253,244,.96), rgba(220,252,231,.66));
}

.post-prose .tl-biz-task-mistakes{
  border-color: rgba(239,68,68,.24);
  background:
    linear-gradient(180deg, rgba(254,242,242,.96), rgba(254,226,226,.62));
}

.post-prose details.tl-biz-task-section summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  font-weight: 850;
  line-height: 1.35;
  list-style: none;
  outline: none;
}

.post-prose details.tl-biz-task-section summary::-webkit-details-marker{
  display: none;
}

.post-prose details.tl-biz-task-section summary::after{
  content: "+";
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 900;
  background: rgba(37,99,235,.10);
  border: 1px solid rgba(37,99,235,.18);
  color: #1D4ED8;
}

.post-prose details.tl-biz-task-section[open] summary{
  margin-bottom: .85em;
  padding-bottom: .85em;
  border-bottom: 1px solid rgba(15,23,42,.10);
}

.post-prose details.tl-biz-task-section[open] summary::after{
  content: "-";
}

.post-prose .tl-biz-app-placeholder{
  margin-top: 1em;
  padding: 18px 20px;
  border: 2px dashed rgba(99,102,241,.32);
  border-radius: 18px;
  background:
    radial-gradient(360px 140px at 0% 0%, rgba(99,102,241,.10), transparent 64%),
    rgba(238,242,255,.70);
  color: #3730A3;
  font-weight: 750;
}

.post-prose .tl-biz-app-placeholder p{
  margin: 0;
  color: #3730A3;
}

.post-prose .tl-biz-callout mjx-container[jax="CHTML"][display="true"],
.post-prose .tl-biz-task-card mjx-container[jax="CHTML"][display="true"]{
  margin: .8em 0;
  padding: .6em .45em .7em;
  border-radius: 14px;
  background: rgba(255,255,255,.62);
  overflow-x: auto;
  overflow-y: hidden;
}

@media (max-width: 575.98px){
  .post-prose .tl-biz-callout{
    padding: 14px;
    border-radius: 19px;
  }

  .post-prose .tl-biz-task-card{
    margin: 1.55em 0;
    padding: 14px;
    border-radius: 22px;
  }

  .post-prose .tl-biz-task-section{
    padding: 14px;
    border-radius: 17px;
  }

  .post-prose .tl-biz-answer summary,
  .post-prose details.tl-biz-task-section summary{
    align-items: flex-start;
  }

  .post-prose .tl-biz-answer summary::after,
  .post-prose details.tl-biz-task-section summary::after{
    width: 28px;
    height: 28px;
    font-size: 1.05rem;
  }

  .post-prose .tl-biz-callout mjx-container[jax="CHTML"][display="true"],
  .post-prose .tl-biz-task-card mjx-container[jax="CHTML"][display="true"]{
    font-size: .94em;
  }
}