/* Learn hub: compact chronological knowledge-base layout */

.learn-page{
  --learn-radius: 20px;
  --learn-section-gap: clamp(64px, 8vw, 104px);
}

.learn-page .blog-breadcrumbs{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding-top: 0;
}

.learn-page .blog-breadcrumbs .breadcrumb-list{
  flex: 1 1 auto;
}

.learn-page .blog-breadcrumbs .lang-toggle{
  flex: 0 0 auto;
  margin: 0;
}

.learn-page .section{
  padding: var(--learn-section-gap) 0 0;
}

.learn-page .learn-hero{
  min-height: 0;
  padding: clamp(28px, 4vw, 48px) 0 24px;
}

.learn-hero-inner{
  max-width: 940px;
  text-align: center;
}

.learn-eyebrow,
.learn-page .section .learn-eyebrow{
  width: fit-content;
  margin: 0 auto 14px;
  color: color-mix(in oklab, var(--accent) 84%, var(--fg));
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.learn-page .blog-hero .blog-title{
  max-width: 900px;
  margin: 0 auto 18px;
  display: block;
  font-size: clamp(40px, 6.2vw, 68px);
  line-height: 1.02;
  letter-spacing: -.045em;
  text-wrap: balance;
}

.learn-page .blog-lead{
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.62;
  text-wrap: pretty;
}

.learn-controls{
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 24px;
  margin: 30px auto 0;
}

.learn-page .learn-search{
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  max-width: none;
  min-width: 0;
  margin-top: 0;
}

.learn-page .learn-search input{
  width: 100%;
  max-width: none;
  min-height: 58px;
  padding: 16px 20px 16px 54px;
  border-color: color-mix(in oklab, var(--border-strong) 82%, var(--accent));
  border-radius: 16px;
  background: color-mix(in oklab, var(--panel-strong) 88%, transparent);
  box-shadow: 0 18px 54px rgba(0,0,0,.18), inset 0 1px 0 rgba(255,255,255,.04);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.learn-page .learn-search input:focus{
  border-color: color-mix(in oklab, var(--accent) 72%, var(--border));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 14%, transparent), 0 20px 58px rgba(0,0,0,.2);
}

.learn-search-icon{
  position: absolute;
  z-index: 1;
  top: 19px;
  left: 20px;
  width: 18px;
  height: 18px;
  border: 2px solid color-mix(in oklab, var(--fg) 62%, transparent);
  border-radius: 50%;
  pointer-events: none;
}

.learn-search-icon::after{
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  border-radius: 2px;
  background: color-mix(in oklab, var(--fg) 62%, transparent);
  rotate: 45deg;
}

.learn-page .blog-search-hint{
  padding-left: 4px;
  font-size: 13px;
}

.learn-page .lang-link{
  min-width: 44px;
  padding: 7px 10px;
  font-size: 13px;
}

.learn-page .learn-content-section{
  padding: 8px 0 clamp(64px, 8vw, 100px);
  transition: padding-top .28s cubic-bezier(.2,.7,.2,1);
}

.learn-page .blog-grid{
  gap: 18px;
}

.learn-page .blog-card[hidden]{
  display: none !important;
}

.learn-page .blog-card{
  height: 100% !important;
  will-change: auto;
  opacity: 1;
  transform: none;
  filter: none;
  border-radius: 18px;
  background: color-mix(in oklab, var(--panel) 94%, transparent);
  box-shadow: 0 14px 36px rgba(0,0,0,.16);
  transition: translate .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.learn-page .blog-card:hover{
  scale: 1;
  border-color: color-mix(in oklab, var(--accent) 38%, var(--border));
  box-shadow: 0 20px 46px rgba(0,0,0,.22), 0 0 30px color-mix(in oklab, var(--accent) 6%, transparent);
}

.learn-page .blog-card-link{
  height: 100%;
}

.learn-page .blog-card-link:focus-visible,
.learn-page input:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.learn-page .blog-thumb{
  aspect-ratio: 16 / 9;
  border-radius: 0;
  background: var(--bg-2);
}

.learn-page .blog-thumb-img{
  transition: scale .55s cubic-bezier(.16,1,.3,1), filter .3s ease;
}

@media (hover:hover) and (pointer:fine) and (prefers-reduced-motion:no-preference){
  .learn-page .blog-card:hover .blog-thumb-img{ scale:1.025; }
}

.learn-page .blog-card-body{
  flex: 1;
  align-content: start;
  gap: 10px;
  padding: 20px 20px 22px;
}

.learn-card-category{
  color: color-mix(in oklab, var(--accent) 78%, var(--fg));
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.learn-page .blog-card-title{
  font-size: clamp(19px, 1.8vw, 23px);
  line-height: 1.2;
  letter-spacing: -.025em;
}

.learn-page .blog-card-excerpt{
  color: color-mix(in oklab, var(--fg) 70%, transparent);
  font-size: 14px;
  line-height: 1.5;
  -webkit-line-clamp: 3;
  line-clamp: 3;
}

.learn-empty-state{
  max-width: 620px;
  margin: 0 auto;
  padding: 40px 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: color-mix(in oklab, var(--panel) 88%, transparent);
}

.learn-empty-state strong{
  display: block;
  font-size: 20px;
}

.learn-topic-filter{ display:flex; flex-wrap:wrap; justify-content:center; gap:9px; }
.learn-topic-filter .filter-chip{ min-height:36px; padding:6px 14px; border:1px solid var(--border); border-radius:999px; background:color-mix(in oklab,var(--fg) 3.5%,transparent); color:color-mix(in oklab,var(--fg) 72%,transparent); font:inherit; font-size:14px; font-weight:700; line-height:1.2; letter-spacing:0; cursor:pointer; transition:color .2s ease, background .2s ease, border-color .2s ease; }
.learn-topic-filter .filter-chip:hover,.learn-topic-filter .filter-chip.is-active{ color:var(--bg); background:var(--accent); border-color:var(--accent); }
@media (max-width:760px){
  .learn-topic-filter{ justify-content:flex-start; }
}
@media (hover:hover) and (pointer:fine) and (prefers-reduced-motion:no-preference){
  .learn-page .blog-card.visible:hover{ transform:translateY(-3px); }
}


@media (max-width: 640px){
  .learn-page{
    --learn-section-gap: 56px;
  }

  .learn-page .blog-breadcrumbs{
    flex-wrap: wrap;
    min-height: 58px;
    padding-top: 0;
  }

  .learn-page .blog-breadcrumbs .lang-toggle{
    margin-left: auto;
  }

  .learn-page .learn-hero{
    display: block;
    min-height: 0;
    padding: 28px 0 24px;
  }

  .learn-page .blog-hero .blog-title{
    font-size: clamp(38px, 12vw, 50px);
  }

  .learn-page .blog-lead{
    font-size: 16px;
  }

  .learn-controls{
    align-items: stretch;
    gap: 22px;
    margin-top: 25px;
  }

  .learn-page .learn-search,
  .learn-page .learn-search input{
    width: 100%;
  }

  .learn-page .learn-search input{
    min-height: 56px;
    font-size: 16px;
  }

  .learn-page .blog-search-hint{
    font-size: 12px;
  }


  .learn-page .blog-grid{
    grid-template-columns: 1fr;
  }

  .learn-page .blog-card-body{
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce){
  .learn-page .learn-content-section,
  .learn-page .blog-card,
  .learn-topic-filter .filter-chip,
  .learn-page .blog-thumb-img{
    transition: none !important;
  }

  .learn-page .blog-card:hover{
    translate: none;
  }
}
.learn-page [hidden]{ display:none !important; }
.learn-topic-filter .learn-video-filter,
.learn-topic-filter .learn-video-filter:hover,
.learn-topic-filter .learn-video-filter.is-active{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  background:#ff0000; color:#fff; border-color:#ff0000;
}
.learn-topic-filter .learn-video-filter.is-active{
  outline:2px solid var(--fg); outline-offset:3px;
}
.learn-topic-filter .filter-chip:focus-visible{
  outline:3px solid var(--accent); outline-offset:5px;
}
.learn-video-grid{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px; align-items:start; max-width:1180px; margin:0 auto; }
.learn-video-card{ min-width:0; }
.learn-short-preview{
  width:100%; aspect-ratio:9 / 16; margin:0 auto;
  border-radius:14px; overflow:hidden;
  background:color-mix(in oklab,var(--panel) 82%,#000);
}
.learn-short-preview iframe{ display:block; width:100%; height:100%; border:0; background:#000; }
.learn-video-play{ position:relative; display:grid; place-items:center; width:100%; height:100%; color:#fff; background:#05070b; text-decoration:none; }
.learn-video-play img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.learn-video-play-icon{ position:relative; display:grid; place-items:center; width:52px; height:52px; border:1px solid rgba(255,255,255,.6); border-radius:50%; background:rgba(5,7,11,.8); font-size:20px; }
.learn-video-title{ position:absolute; inset:auto 0 0; padding:48px 18px 20px; background:linear-gradient(transparent,rgba(5,7,11,.95)); font-size:15px; font-weight:600; line-height:1.4; }
.learn-video-play:focus-visible{ outline:3px solid var(--accent); outline-offset:-4px; }
@media(max-width:1100px){ .learn-video-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); max-width:840px; } }
@media(max-width:900px){ .learn-video-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); max-width:580px; gap:18px; } }
@media(max-width:520px){ .learn-video-grid{ grid-template-columns:minmax(0,1fr); max-width:360px; } }

/* Shared presentation still used by the phishing simulation page. */
.learn-featured-panel{
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, .78fr) minmax(0, 1.35fr);
  align-items: center;
  gap: clamp(26px, 5vw, 66px);
  padding: clamp(22px, 3.5vw, 46px);
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--border-strong) 76%, var(--accent));
  border-radius: clamp(22px, 3vw, 30px);
  background:
    radial-gradient(720px 360px at 8% 0%, color-mix(in oklab, var(--accent) 15%, transparent), transparent 68%),
    linear-gradient(145deg, color-mix(in oklab, var(--panel-strong) 96%, transparent), color-mix(in oklab, var(--panel) 88%, transparent));
  box-shadow: var(--glow);
  text-align: left;
  transform-origin: top;
  transition: opacity .22s ease, transform .28s cubic-bezier(.2,.7,.2,1);
}

.learn-featured-panel::before{
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(115deg, rgba(255,255,255,.035), transparent 30%);
  pointer-events: none;
}

.learn-featured-copy{
  position: relative;
  z-index: 1;
}

.learn-page .learn-featured-copy h2{
  margin: 0 0 16px;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.08;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.learn-page .learn-featured-copy p{
  margin: 0;
  color: color-mix(in oklab, var(--fg) 72%, transparent);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.65;
}

.learn-video-frame{
  position: relative;
  z-index: 1;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  background: #020408;
  box-shadow: 0 24px 60px rgba(0,0,0,.34);
}

.learn-video-frame iframe{
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

.learn-section-heading{
  max-width: 720px;
  margin: 0;
  text-align: left;
}

.learn-page .learn-section-heading h2{
  margin: 0 0 10px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: -.035em;
}

.learn-page .learn-section-heading > p:last-child{
  margin: 0;
  color: color-mix(in oklab, var(--fg) 68%, transparent);
  font-size: 16px;
  line-height: 1.6;
}
@media (max-width:960px){
  .learn-featured-panel{ grid-template-columns:1fr; }
  .learn-featured-copy{ max-width:720px; }
}
@media (prefers-reduced-motion:reduce){
  .learn-featured-panel{ transition:none !important; }
}