/* ============================================================
   Orion Veyr, course app
   Landing, sidebar, module renderer, quiz, completion.
   Inherits every token from base.css.
   ============================================================ */

:root{ --header-h:66px; }

.screen{display:none}
.screen.is-active{display:block}

/* ---------------- LANDING ---------------- */
#course-landing{
  padding-block:clamp(48px,7vw,92px) clamp(56px,8vw,104px);
  text-align:center;
  position:relative;
  overflow:hidden;
}
#course-landing::before{
  content:'';position:absolute;
  inset:-50% 0 auto 50%;transform:translateX(-50%);
  width:min(900px,130vw);height:520px;
  background:radial-gradient(ellipse at center,rgba(232,119,46,0.09) 0%,transparent 66%);
  pointer-events:none;
}
#course-landing > *{position:relative}

.land-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:10px;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--orange);
  border:1px solid var(--orange-line);
  padding:6px 15px;border-radius:2px;
  margin-bottom:26px;
}
.land-badge-dot{width:6px;height:6px;background:var(--orange);box-shadow:0 0 0 1px rgba(232,119,46,0.3)}

#course-landing .h1{margin-bottom:12px}
.land-sub{
  font-family:var(--mono);font-size:clamp(11px,1.4vw,13px);
  color:var(--t3);letter-spacing:.09em;text-transform:uppercase;
  margin-bottom:24px;
}
#course-landing .lede{margin-inline:auto;margin-bottom:34px}

.land-pills{display:flex;gap:9px;flex-wrap:wrap;justify-content:center;margin-top:30px}

.land-mods{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:9px;max-width:860px;
  margin:52px auto 0;
  text-align:left;
}
.land-mod{
  background:var(--bg2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  display:flex;align-items:flex-start;gap:12px;
}
.land-mod-n{
  font-family:var(--mono);font-size:10px;color:var(--orange);
  background:var(--orange-dim);border:1px solid var(--orange-line);
  border-radius:6px;padding:3px 7px;flex-shrink:0;margin-top:1px;
}
.land-mod-t{font-size:12.5px;color:var(--t2);line-height:1.42;font-weight:600}

/* ---------------- COURSE SHELL ---------------- */
#course-app{display:none}
#course-app.is-active{display:flex;align-items:flex-start}

.course-side{
  width:288px;flex-shrink:0;
  background:var(--bg2);
  border-right:1px solid var(--border);
  position:sticky;
  top:var(--header-h);
  height:calc(100vh - var(--header-h));
  overflow-y:auto;
  padding-block:22px;
  display:flex;flex-direction:column;
}
.side-head{padding:0 20px 18px;border-bottom:1px solid var(--border)}
.side-logo{font-family:var(--serif);font-size:14px;font-weight:700;color:var(--orange)}
.side-tag{
  font-family:var(--mono);font-size:9px;color:var(--t4);
  letter-spacing:.13em;text-transform:uppercase;margin-top:3px;
}
.side-prog{padding:16px 20px;border-bottom:1px solid var(--border)}
.prog-label{
  font-family:var(--mono);font-size:9px;color:var(--t4);
  letter-spacing:.13em;text-transform:uppercase;margin-bottom:9px;
}
.prog-track{height:3px;background:var(--bg4);border-radius:2px;overflow:hidden}
.prog-fill{height:100%;background:var(--orange);border-radius:2px;transition:width .5s var(--ease)}
.prog-text{font-family:var(--mono);font-size:10px;color:var(--t3);margin-top:7px}

.side-nav{flex:1;padding-block:12px}
.side-item{
  display:flex;align-items:center;gap:11px;
  padding:10px 20px;width:100%;text-align:left;
  transition:background .15s var(--ease);
  position:relative;
}
.side-item:hover:not(.is-locked){background:var(--bg3)}
.side-item.is-active{background:var(--bg3)}
.side-item.is-active::before{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:2px;background:var(--orange);
}
.side-item.is-locked{opacity:.38;cursor:default}
.side-num{
  width:24px;height:24px;flex-shrink:0;
  border-radius:50%;border:1px solid var(--border);
  display:grid;place-items:center;
  font-family:var(--mono);font-size:9px;color:var(--t3);
  transition:all .2s var(--ease);
}
.side-item.is-active .side-num{border-color:var(--orange);color:var(--orange);background:var(--orange-dim)}
.side-item.is-done .side-num{background:var(--green-dim);border-color:var(--green);color:var(--green)}
.side-title{font-size:12px;color:var(--t2);line-height:1.32;font-weight:600}
.side-item.is-active .side-title{color:var(--text)}

.course-main{flex:1;min-width:0}
.mod-wrap{max-width:760px;margin-inline:auto;padding:44px var(--gutter) 84px}

/* ---------------- MODULE ---------------- */
.mod-head{margin-bottom:34px;padding-bottom:26px;border-bottom:1px solid var(--border)}
.mod-part{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:9px;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--orange);margin-bottom:14px;
}
.mod-badge{
  font-family:var(--mono);font-size:9px;
  background:var(--orange-dim);border:1px solid var(--orange-line);
  color:var(--orange);padding:2px 8px;border-radius:12px;
}
.mod-title{
  font-family:var(--serif);
  font-size:clamp(23px,2.7vw,33px);
  font-weight:900;line-height:1.08;
  letter-spacing:-.015em;margin-bottom:12px;
}
.mod-title em{color:var(--orange);font-style:italic}
.mod-sub{
  font-family:var(--mono);font-size:12px;
  color:var(--t3);text-transform:uppercase;
  letter-spacing:.08em;margin-bottom:14px;line-height:1.5;
}
.mod-intro{font-size:clamp(15px,1.7vw,17px);color:var(--t2);line-height:1.76}

.block{margin-bottom:22px}
.block-body{font-size:15px;color:var(--t2);line-height:1.8;white-space:pre-line}
.block-body strong{color:var(--text);font-weight:700}
.block-body em{color:var(--orange);font-style:italic}

.block-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(126px,1fr));gap:10px}
.bstat{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px;text-align:center;
}
.bstat b{
  display:block;font-family:var(--mono);
  font-size:clamp(19px,2.4vw,26px);color:var(--orange);
  font-weight:500;margin-bottom:5px;line-height:1;
}
.bstat span{
  display:block;font-family:var(--mono);font-size:9px;
  color:var(--t3);letter-spacing:.1em;text-transform:uppercase;line-height:1.45;
}

.block-warn{
  background:var(--red-dim);
  border:1px solid rgba(214,72,59,0.25);
  border-radius:var(--radius-sm);padding:17px 19px;
}
.warn-title{
  font-family:var(--mono);font-size:10.5px;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;
  color:var(--red);margin-bottom:9px;
}
.block-ok{
  background:var(--green-dim);
  border:1px solid rgba(207,162,58,0.25);
  border-radius:var(--radius-sm);padding:17px 19px;
}
.ok-title{
  font-family:var(--mono);font-size:10.5px;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;
  color:var(--green);margin-bottom:9px;
}
.block-warn .callout-body,.block-ok .callout-body{white-space:pre-line}

/* Timeline */
.timeline{display:flex;flex-direction:column}
.tl-item{display:flex;gap:16px;position:relative}
.tl-item:not(:last-child) .tl-line{
  position:absolute;left:19px;top:40px;bottom:-8px;
  width:1px;background:var(--border);
}
.tl-dot{
  width:38px;height:38px;flex-shrink:0;
  border-radius:50%;border:1px solid var(--border);
  display:grid;place-items:center;
  background:var(--bg2);z-index:1;
}
.tl-dot span{font-family:var(--mono);font-size:8.5px;color:var(--t3)}
.tl-body{flex:1;padding-bottom:20px}
.tl-title{font-size:13px;font-weight:700;margin-bottom:5px}
.tl-text{font-size:13px;color:var(--t3);line-height:1.62}

/* Cards + steps */
.mod-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(205px,1fr));gap:10px}
.mod-card{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:18px;
  transition:border-color .2s var(--ease);
}
.mod-card:hover{border-color:var(--orange-line)}
.mod-card-icon{font-size:21px;margin-bottom:10px}
.mod-card-title{font-size:13px;font-weight:700;margin-bottom:7px}
.mod-card-body{font-size:12.5px;color:var(--t3);line-height:1.62}

.steps{display:flex;flex-direction:column;gap:10px}
.step{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px;
}
.step-n{
  width:28px;height:28px;flex-shrink:0;
  border-radius:50%;background:var(--orange-dim);
  border:1px solid var(--orange-line);
  display:grid;place-items:center;
  font-family:var(--mono);font-size:10px;color:var(--orange);
}
.step-title{font-size:13px;font-weight:700;margin-bottom:5px}
.step-text{font-size:13px;color:var(--t3);line-height:1.62}

/* Comparison table */
.mod-table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-sm)}
.mod-table{width:100%;border-collapse:collapse;min-width:460px}
.mod-table th{
  font-family:var(--mono);font-size:9.5px;
  letter-spacing:.1em;text-transform:uppercase;
  color:var(--t3);padding:11px 14px;text-align:left;
  border-bottom:1px solid var(--border);
  background:var(--bg2);white-space:nowrap;
}
.mod-table td{
  font-size:13px;color:var(--t2);padding:11px 14px;
  border-bottom:1px solid var(--border2);vertical-align:top;
}
.mod-table tr:last-child td{border-bottom:none}
.mod-table .good{color:var(--green)}
.mod-table .bad{color:var(--red)}
.mod-table .neu{color:var(--gold)}

.visual{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;overflow:hidden;
}

/* ---------------- QUIZ ---------------- */
.quiz{margin-top:34px;padding-top:28px;border-top:1px solid var(--border)}
.quiz-label{
  display:flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:9px;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--orange);margin-bottom:14px;
}
.quiz-count{color:var(--t4);font-size:9px;margin-left:6px}
.quiz-q{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:16px}
.quiz-opts{display:flex;flex-direction:column;gap:8px}
.quiz-opt{
  background:var(--bg2);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:13px 16px;text-align:left;
  font-size:14px;color:var(--t2);line-height:1.5;
  transition:all .15s var(--ease);
}
.quiz-opt:hover:not(:disabled){border-color:var(--orange-line);color:var(--text)}
.quiz-opt.is-correct{background:var(--green-dim);border-color:var(--green);color:var(--green)}
.quiz-opt.is-wrong{background:var(--red-dim);border-color:var(--red);color:var(--red)}
.quiz-opt:disabled{cursor:default}
.quiz-fb{
  margin-top:14px;padding:15px 17px;
  border-radius:var(--radius-sm);
  font-size:13px;line-height:1.68;display:none;
}
.quiz-fb.is-shown{display:block}
.quiz-fb.ok{background:var(--green-dim);border:1px solid rgba(207,162,58,0.25);color:var(--t2)}
.quiz-fb.bad{background:var(--red-dim);border:1px solid rgba(214,72,59,0.25);color:var(--t2)}
.quiz-next{
  margin-top:13px;background:var(--orange);color:#fff;
  border-radius:var(--radius-sm);padding:9px 18px;
  font-family:var(--sans);font-weight:700;font-size:13px;
}
.quiz-next:hover{background:var(--orange-hi)}

.mod-nav{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--border);
}
.mod-nav-hint{font-family:var(--mono);font-size:10px;color:var(--t4);text-align:center;flex:1}

/* ---------------- COMPLETION ---------------- */
#course-done{
  padding-block:clamp(56px,9vw,110px);
  text-align:center;
  background:radial-gradient(ellipse at 50% 25%,rgba(207,162,58,0.07) 0%,transparent 62%);
}
.done-icon{font-size:60px;margin-bottom:22px;animation:popIn .55s var(--ease)}
@keyframes popIn{0%{transform:scale(0)}78%{transform:scale(1.12)}100%{transform:scale(1)}}
#course-done .h2 em{color:var(--green);font-style:italic}
#course-done .lede{margin-inline:auto;margin-block:14px 32px}
.done-btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.done-wl{max-width:470px;margin:38px auto 0}
.done-wl-title{
  font-family:var(--mono);font-size:10px;
  letter-spacing:.15em;text-transform:uppercase;
  color:var(--t3);margin-bottom:13px;
}

/* ---------------- RESPONSIVE ---------------- */
@media(max-width:900px){
  #course-app.is-active{flex-direction:column}
  .course-side{
    width:100%;height:auto;position:static;
    border-right:none;border-bottom:1px solid var(--border);
    padding-block:14px 0;
  }
  .side-head{padding:0 var(--gutter) 12px}
  .side-prog{padding:12px var(--gutter)}
  .side-nav{
    display:flex;overflow-x:auto;gap:8px;
    padding:12px var(--gutter) 14px;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
    flex:none;
  }
  .side-nav::-webkit-scrollbar{display:none}

  /* the desktop rule sets width:100%, which in a flex row resolves
     against the rail and made every chip as wide as the screen */
  .side-item{
    width:auto;flex:0 0 auto;
    flex-direction:row;align-items:center;gap:8px;
    padding:0 6px;min-height:44px;
    border-radius:999px;
    border:1px solid var(--border);
    background:var(--bg3);
  }
  .side-item::before{display:none}
  .side-item.is-active{background:var(--orange-dim);border-color:var(--orange-line)}
  /* only the current module needs its name spelled out */
  .side-title{display:none;font-size:11.5px;white-space:nowrap;padding-right:8px}
  .side-item.is-active .side-title{display:block}
  .side-num{width:30px;height:30px;font-size:10px}

  .mod-wrap{padding:26px var(--gutter) 56px}
}

/* ============================================================
   MOBILE
   ============================================================ */
@media(max-width:600px){
  #course-landing{padding-block:36px 44px}
  /* inline text button needs real height to be tappable */
  #reset-btn{display:inline-block;padding:12px 8px;min-height:44px}
  .land-badge{margin-bottom:20px;font-size:10.5px}
  .land-sub{font-size:12px;margin-bottom:20px}
  .land-pills{gap:7px;margin-top:24px}
  .land-mods{margin-top:34px;gap:8px}
  .land-mod{padding:13px 14px}
  .land-mod-t{font-size:13px}

  .mod-head{margin-bottom:26px;padding-bottom:20px}
  .mod-part{font-size:10px;margin-bottom:11px}
  .mod-sub{font-size:11.5px;letter-spacing:.06em}
  .mod-intro{font-size:15px}

  .block{margin-bottom:18px}
  .block-body{font-size:15px}
  .bstat{padding:14px 10px}
  .bstat b{font-size:20px}
  .bstat span{font-size:9.5px}

  .warn-title,.ok-title{font-size:11px}
  .mod-card{padding:16px}
  .mod-card-body{font-size:13px}
  .step{padding:14px}
  .step-text{font-size:13px}
  .tl-text{font-size:13px}

  /* the quiz is the interactive core, so it gets real touch room */
  .quiz{margin-top:28px;padding-top:22px}
  .quiz-q{font-size:16px}
  .quiz-opt{padding:15px 16px;font-size:14.5px;min-height:52px}
  .quiz-fb{font-size:13.5px}
  .quiz-next{width:100%;min-height:48px;font-size:14px}

  .mod-nav{margin-top:30px;padding-top:22px;gap:10px}
  .mod-nav .btn{flex:1;min-height:46px}
  .mod-nav-hint{font-size:10.5px}

  #course-done{padding-block:48px}
  .done-icon{font-size:52px}
  .done-btns{flex-direction:column;align-items:stretch}
  .done-btns .btn{width:100%}
}
@media(max-width:560px){
  .land-mods{grid-template-columns:1fr}
  .mod-cards{grid-template-columns:1fr}
  .block-stats{grid-template-columns:1fr 1fr}
  .mod-nav{flex-wrap:wrap}
  .mod-nav-hint{order:3;flex-basis:100%}
}