/* ==========================================================================
   PROBELIKA PREMIUM EXPERIENCE V1
   Smart preparation OS
   ========================================================================== */

:root{
  --pb-bg:#070912;
  --pb-bg2:#0b1020;
  --pb-panel:rgba(17,22,40,.72);
  --pb-panel-strong:#11172b;
  --pb-panel-soft:rgba(255,255,255,.045);

  --pb-line:rgba(255,255,255,.09);
  --pb-line-strong:rgba(255,255,255,.15);

  --pb-text:#f7f8ff;
  --pb-muted:#a6aec4;
  --pb-muted2:#737e9a;

  --pb-blue:#6c7cff;
  --pb-cyan:#51d6ff;
  --pb-violet:#a970ff;
  --pb-green:#59e6ad;
  --pb-yellow:#ffd56a;
  --pb-red:#ff7086;

  --pb-gradient:
    linear-gradient(135deg,#6c7cff 0%,#936dff 48%,#4bd9ff 100%);

  --pb-gradient-soft:
    linear-gradient(
      135deg,
      rgba(108,124,255,.20),
      rgba(169,112,255,.12),
      rgba(81,214,255,.08)
    );

  --pb-shadow:
    0 28px 90px rgba(0,0,0,.34);

  --pb-shadow-blue:
    0 20px 55px rgba(91,108,255,.23);

  --pb-radius:28px;
  --pb-radius-md:20px;
  --pb-radius-sm:14px;
}

/* --------------------------------------------------------------------------
   Global
   -------------------------------------------------------------------------- */

html{
  scroll-behavior:smooth;
}

body{
  background:
    radial-gradient(
      circle at 13% 3%,
      rgba(97,111,255,.16),
      transparent 31%
    ),
    radial-gradient(
      circle at 87% 8%,
      rgba(76,209,255,.10),
      transparent 27%
    ),
    radial-gradient(
      circle at 58% 72%,
      rgba(155,92,255,.08),
      transparent 28%
    ),
    #070912 !important;
  color:var(--pb-text);
}

body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.18;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(to bottom,black,transparent 84%);
  z-index:-2;
}

.fx,
.floor{
  opacity:.42;
}

::selection{
  color:white;
  background:#6c7cff;
}

.wrap{
  max-width:1240px;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.nav{
  position:relative;
  margin-top:14px;
  padding:10px 12px 10px 16px;
  border:1px solid var(--pb-line);
  border-radius:22px;
  background:rgba(8,11,22,.70);
  backdrop-filter:blur(24px) saturate(145%);
  -webkit-backdrop-filter:blur(24px) saturate(145%);
  box-shadow:0 16px 45px rgba(0,0,0,.20);
}

.logo{
  gap:10px;
}

.brand-mark{
  filter:
    drop-shadow(0 8px 18px rgba(100,119,255,.32));
}

.logo-txt{
  letter-spacing:-.45px;
}

.logo-copy small{
  color:#8e99b7 !important;
}

.menu a{
  border-radius:12px;
  transition:
    color .18s ease,
    background .18s ease,
    transform .18s ease;
}

.menu a:hover{
  background:rgba(255,255,255,.05);
  transform:translateY(-1px);
}

.nav-cta{
  background:var(--pb-gradient) !important;
  border:0 !important;
  color:white !important;
  box-shadow:0 10px 30px rgba(99,113,255,.22);
}

/* --------------------------------------------------------------------------
   Shared premium primitives
   -------------------------------------------------------------------------- */

.pb-page{
  position:relative;
  padding:58px 0 80px;
}

.pb-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:max-content;
  padding:7px 11px;
  border:1px solid rgba(128,143,255,.22);
  border-radius:999px;
  background:rgba(108,124,255,.09);
  color:#cbd1ff;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.pb-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--pb-cyan);
  box-shadow:0 0 16px var(--pb-cyan);
}

.pb-gradient-text{
  color:transparent;
  background:var(--pb-gradient);
  -webkit-background-clip:text;
  background-clip:text;
}

.pb-card{
  position:relative;
  border:1px solid var(--pb-line);
  border-radius:var(--pb-radius);
  background:
    linear-gradient(
      145deg,
      rgba(255,255,255,.066),
      rgba(255,255,255,.026)
    );
  backdrop-filter:blur(18px);
  box-shadow:var(--pb-shadow);
  overflow:hidden;
}

.pb-card:before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(
      420px circle at var(--x,20%) var(--y,0%),
      rgba(119,133,255,.11),
      transparent 45%
    );
}

.pb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:50px;
  padding:0 20px;
  border:0;
  border-radius:15px;
  color:white;
  background:var(--pb-gradient);
  box-shadow:var(--pb-shadow-blue);
  text-decoration:none;
  font-weight:800;
  transition:
    transform .18s ease,
    box-shadow .18s ease,
    filter .18s ease;
}

.pb-btn:hover{
  transform:translateY(-2px);
  filter:brightness(1.05);
  box-shadow:0 25px 65px rgba(91,108,255,.30);
}

.pb-btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:50px;
  padding:0 19px;
  border:1px solid var(--pb-line-strong);
  border-radius:15px;
  color:var(--pb-text);
  background:rgba(255,255,255,.045);
  text-decoration:none;
  font-weight:750;
  transition:.18s ease;
}

.pb-btn-secondary:hover{
  background:rgba(255,255,255,.075);
  transform:translateY(-2px);
}

.pb-section-head{
  max-width:720px;
  margin-bottom:30px;
}

.pb-section-head h2{
  margin:12px 0 12px;
  font-size:clamp(32px,4.4vw,54px);
  line-height:1.02;
  letter-spacing:-2px;
}

.pb-section-head p{
  margin:0;
  color:var(--pb-muted);
  font-size:17px;
  line-height:1.65;
}

.pb-kicker{
  color:#9ea9ff;
  font-size:12px;
  font-weight:850;
  letter-spacing:.10em;
  text-transform:uppercase;
}

/* ==========================================================================
   LANDING
   ========================================================================== */

.pb-landing{
  padding-top:50px;
}

.pb-hero{
  min-height:670px;
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);
  align-items:center;
  gap:48px;
  padding:50px 0 74px;
}

.pb-hero-copy h1{
  max-width:790px;
  margin:20px 0 22px;
  font-size:clamp(48px,6.3vw,84px);
  line-height:.96;
  letter-spacing:-4.6px;
  font-weight:900;
}

.pb-hero-copy>p{
  max-width:690px;
  margin:0;
  color:var(--pb-muted);
  font-size:clamp(17px,1.55vw,21px);
  line-height:1.62;
}

.pb-hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}

.pb-hero-proof{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:28px;
  color:#8e99b8;
  font-size:13px;
}

.pb-hero-proof span{
  display:flex;
  align-items:center;
  gap:7px;
}

.pb-hero-proof i{
  width:7px;
  height:7px;
  border-radius:50%;
  background:#59e6ad;
  box-shadow:0 0 12px rgba(89,230,173,.55);
}

/* hero demo */

.pb-smart-demo{
  min-height:535px;
  padding:25px;
  isolation:isolate;
}

.pb-smart-demo:after{
  content:"";
  position:absolute;
  width:260px;
  height:260px;
  border-radius:50%;
  top:-110px;
  right:-90px;
  background:#6c7cff;
  filter:blur(95px);
  opacity:.19;
  z-index:-1;
}

.pb-demo-top{
  display:flex;
  justify-content:space-between;
  gap:15px;
  align-items:center;
  margin-bottom:24px;
}

.pb-demo-brand{
  display:flex;
  align-items:center;
  gap:10px;
}

.pb-demo-orb{
  position:relative;
  width:40px;
  height:40px;
  border-radius:14px;
  background:var(--pb-gradient);
  box-shadow:0 12px 36px rgba(100,117,255,.35);
}

.pb-demo-orb:after{
  content:"";
  position:absolute;
  inset:9px;
  border:1px solid rgba(255,255,255,.68);
  border-radius:50%;
}

.pb-demo-brand strong{
  display:block;
  font-size:14px;
}

.pb-demo-brand small{
  display:block;
  margin-top:2px;
  color:var(--pb-muted2);
  font-size: 12px;
}

.pb-demo-live{
  padding:6px 9px;
  border-radius:999px;
  background:rgba(89,230,173,.10);
  color:#8df1c5;
  font-size: 12px;
  font-weight:800;
}

.pb-score-box{
  padding:22px;
  border:1px solid var(--pb-line);
  border-radius:22px;
  background:rgba(4,7,16,.38);
}

.pb-score-label{
  color:var(--pb-muted);
  font-size:12px;
}

.pb-score-line{
  display:flex;
  align-items:flex-end;
  gap:10px;
  margin:8px 0 13px;
}

.pb-score-now{
  font-size:58px;
  line-height:1;
  font-weight:900;
  letter-spacing:-3px;
}

.pb-score-target{
  padding-bottom:7px;
  color:#7ae9ba;
  font-size:14px;
  font-weight:800;
}

.pb-score-track{
  position:relative;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
}

.pb-score-track span{
  display:block;
  width:64%;
  height:100%;
  border-radius:inherit;
  background:var(--pb-gradient);
  box-shadow:0 0 20px rgba(108,124,255,.58);
}

.pb-demo-mission{
  margin-top:14px;
  padding:18px;
  border:1px solid rgba(124,138,255,.16);
  border-radius:20px;
  background:
    linear-gradient(
      135deg,
      rgba(108,124,255,.11),
      rgba(255,255,255,.026)
    );
}

.pb-demo-mission-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}

.pb-demo-mission-head span{
  color:#c8ceff;
  font-size: 12px;
  font-weight:850;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.pb-demo-mission-head b{
  color:#8fe8c3;
  font-size:12px;
}

.pb-demo-mission h3{
  margin:10px 0 7px;
  font-size:20px;
  letter-spacing:-.5px;
}

.pb-demo-mission p{
  margin:0;
  color:var(--pb-muted);
  font-size:13px;
  line-height:1.5;
}

.pb-demo-steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:8px;
  margin-top:14px;
}

.pb-demo-step{
  padding:11px 9px;
  border-radius:13px;
  background:rgba(255,255,255,.045);
}

.pb-demo-step small{
  display:block;
  color:var(--pb-muted2);
  font-size: 12px;
}

.pb-demo-step b{
  display:block;
  margin-top:3px;
  font-size:12px;
}

.pb-demo-alert{
  display:flex;
  align-items:center;
  gap:11px;
  margin-top:14px;
  padding:14px 16px;
  border-radius:17px;
  background:rgba(255,213,106,.075);
  border:1px solid rgba(255,213,106,.13);
}

.pb-demo-alert-icon{
  width:33px;
  height:33px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:11px;
  background:rgba(255,213,106,.12);
  color:#ffdf89;
  font-weight:900;
}

.pb-demo-alert strong{
  display:block;
  font-size:12px;
}

.pb-demo-alert span{
  display:block;
  margin-top:2px;
  color:var(--pb-muted);
  font-size: 12px;
}

/* metrics */

.pb-metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--pb-line);
  border-bottom:1px solid var(--pb-line);
  margin:8px 0 100px;
}

.pb-metric{
  padding:27px 26px;
  border-right:1px solid var(--pb-line);
}

.pb-metric:last-child{
  border-right:0;
}

.pb-metric strong{
  display:block;
  font-size:30px;
  letter-spacing:-1.5px;
}

.pb-metric span{
  display:block;
  margin-top:5px;
  color:var(--pb-muted2);
  font-size:12px;
}

/* how */

.pb-section{
  padding:90px 0;
}

.pb-how-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}

.pb-how-card{
  min-height:285px;
  padding:26px;
}

.pb-how-number{
  display:flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  background:rgba(108,124,255,.10);
  border:1px solid rgba(130,143,255,.16);
  color:#aeb7ff;
  font-weight:900;
}

.pb-how-card h3{
  margin:48px 0 10px;
  font-size:23px;
  letter-spacing:-.7px;
}

.pb-how-card p{
  margin:0;
  color:var(--pb-muted);
  line-height:1.62;
  font-size:14px;
}

/* feature spotlight */

.pb-feature-stage{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:36px;
  align-items:center;
}

.pb-feature-list{
  display:grid;
  gap:10px;
}

.pb-feature-item{
  padding:17px 18px;
  border:1px solid var(--pb-line);
  border-radius:16px;
  background:rgba(255,255,255,.025);
}

.pb-feature-item strong{
  display:block;
  font-size:14px;
}

.pb-feature-item span{
  display:block;
  margin-top:4px;
  color:var(--pb-muted2);
  font-size:12px;
  line-height:1.5;
}

.pb-knowledge-demo{
  min-height:480px;
  padding:30px;
}

.pb-node-map{
  position:relative;
  height:355px;
  margin-top:20px;
}

.pb-node-line{
  position:absolute;
  height:1px;
  transform-origin:left center;
  background:linear-gradient(
    90deg,
    rgba(125,140,255,.45),
    rgba(125,140,255,.08)
  );
}

.pb-node{
  position:absolute;
  width:118px;
  padding:12px;
  border:1px solid var(--pb-line);
  border-radius:15px;
  background:#111729;
  box-shadow:0 12px 30px rgba(0,0,0,.26);
}

.pb-node small{
  display:block;
  color:var(--pb-muted2);
  font-size: 12px;
  text-transform:uppercase;
}

.pb-node strong{
  display:block;
  margin-top:4px;
  font-size:13px;
}

.pb-node em{
  display:block;
  margin-top:6px;
  font-style:normal;
  font-size: 12px;
  font-weight:800;
}

.pb-node.good em{color:#73e9ba}
.pb-node.mid em{color:#ffd56a}
.pb-node.bad em{color:#ff8192}

.pb-node.n1{left:38%;top:3%}
.pb-node.n2{left:7%;top:37%}
.pb-node.n3{right:6%;top:34%}
.pb-node.n4{left:30%;bottom:2%}

.pb-node-line.l1{
  left:36%;
  top:31%;
  width:142px;
  transform:rotate(147deg);
}

.pb-node-line.l2{
  left:54%;
  top:31%;
  width:150px;
  transform:rotate(32deg);
}

.pb-node-line.l3{
  left:48%;
  top:34%;
  width:160px;
  transform:rotate(91deg);
}

/* gamification */

.pb-game-grid{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:14px;
}

.pb-game-main{
  padding:30px;
  min-height:380px;
}

.pb-game-title{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:20px;
}

.pb-game-title h3{
  margin:8px 0 0;
  font-size:30px;
  letter-spacing:-1.2px;
}

.pb-streak{
  padding:10px 13px;
  border-radius:14px;
  background:rgba(255,132,98,.08);
  border:1px solid rgba(255,132,98,.13);
  color:#ffaf93;
  font-weight:900;
}

.pb-quest{
  margin-top:38px;
}

.pb-quest-row{
  display:grid;
  grid-template-columns:30px 1fr auto;
  gap:12px;
  align-items:center;
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.055);
}

.pb-check{
  width:27px;
  height:27px;
  display:grid;
  place-items:center;
  border-radius:9px;
  border:1px solid var(--pb-line);
  color:#8791ac;
  font-size: 12px;
}

.pb-check.done{
  color:#75e7b8;
  background:rgba(89,230,173,.09);
  border-color:rgba(89,230,173,.18);
}

.pb-quest-row strong{
  font-size:13px;
}

.pb-quest-row small{
  color:var(--pb-muted2);
}

.pb-game-side{
  display:grid;
  gap:14px;
}

.pb-mini-game{
  min-height:183px;
  padding:22px;
}

.pb-mini-game .icon{
  font-size:24px;
}

.pb-mini-game strong{
  display:block;
  margin-top:20px;
  font-size:18px;
}

.pb-mini-game p{
  margin:7px 0 0;
  color:var(--pb-muted2);
  font-size:12px;
  line-height:1.5;
}

/* audience */

.pb-audience{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
}

.pb-audience-card{
  padding:26px;
  min-height:270px;
}

.pb-audience-card span{
  display:block;
  color:#aab3ff;
  font-size: 12px;
  font-weight:850;
  letter-spacing:.09em;
  text-transform:uppercase;
}

.pb-audience-card h3{
  margin:16px 0 10px;
  font-size:24px;
}

.pb-audience-card p{
  color:var(--pb-muted);
  font-size:14px;
  line-height:1.62;
}

.pb-audience-card ul{
  list-style:none;
  padding:0;
  margin:17px 0 0;
}

.pb-audience-card li{
  margin:8px 0;
  color:#c9cede;
  font-size:12px;
}

/* CTA */

.pb-final-cta{
  margin:80px 0 40px;
  padding:48px;
  text-align:center;
  background:
    radial-gradient(
      circle at 50% 0%,
      rgba(111,126,255,.27),
      transparent 45%
    ),
    rgba(255,255,255,.035);
}

.pb-final-cta h2{
  max-width:850px;
  margin:10px auto 15px;
  font-size:clamp(36px,5vw,62px);
  line-height:1.02;
  letter-spacing:-2.5px;
}

.pb-final-cta p{
  max-width:650px;
  margin:0 auto 25px;
  color:var(--pb-muted);
  line-height:1.62;
}

/* ==========================================================================
   STUDENT HOME
   ========================================================================== */

.pb-student{
  padding-top:38px;
}

.pb-student-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:26px;
}

.pb-student-head h1{
  margin:9px 0 6px;
  font-size:clamp(34px,4vw,52px);
  letter-spacing:-2px;
}

.pb-student-head p{
  margin:0;
  color:var(--pb-muted);
}

.pb-student-actions{
  display:flex;
  gap:9px;
  flex-wrap:wrap;
}

/* mission */

.pb-mission{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  min-height:340px;
  overflow:hidden;
}

.pb-mission-main{
  padding:34px;
}

.pb-mission-main h2{
  max-width:680px;
  margin:13px 0 12px;
  font-size:clamp(30px,4vw,48px);
  line-height:1.03;
  letter-spacing:-1.8px;
}

.pb-mission-main>p{
  max-width:640px;
  color:var(--pb-muted);
  line-height:1.6;
}

.pb-mission-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:17px 0 26px;
}

.pb-pill{
  padding:7px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.055);
  border:1px solid var(--pb-line);
  color:#c4cadb;
  font-size: 12px;
  font-weight:750;
}

.pb-mission-side{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:28px;
  border-left:1px solid var(--pb-line);
  background:
    radial-gradient(
      circle at 50% 16%,
      rgba(110,127,255,.26),
      transparent 39%
    ),
    rgba(5,8,17,.25);
}

.pb-pulse{
  position:absolute;
  top:31px;
  left:50%;
  transform:translateX(-50%);
  width:122px;
  height:122px;
  border-radius:50%;
  background:
    radial-gradient(
      circle at 35% 30%,
      #91f0ff,
      #7b72ff 41%,
      #3d2e88 68%,
      transparent 70%
    );
  box-shadow:
    0 0 70px rgba(103,124,255,.35),
    inset -20px -20px 40px rgba(0,0,0,.25);
}

.pb-pulse:before,
.pb-pulse:after{
  content:"";
  position:absolute;
  inset:-17px;
  border:1px solid rgba(143,157,255,.22);
  border-radius:50%;
  animation:pbOrbit 7s linear infinite;
}

.pb-pulse:after{
  inset:-34px;
  border-color:rgba(81,214,255,.10);
  animation-duration:12s;
  animation-direction:reverse;
}

@keyframes pbOrbit{
  to{transform:rotate(360deg)}
}

.pb-mission-side small{
  color:var(--pb-muted2);
}

.pb-mission-side strong{
  margin-top:4px;
  font-size:15px;
}

/* quick nav */

.pb-quick-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:10px;
  margin-top:13px;
}

.pb-quick{
  min-height:116px;
  padding:18px;
  color:var(--pb-text);
  text-decoration:none;
  transition:
    transform .18s ease,
    border-color .18s ease,
    background .18s ease;
}

.pb-quick:hover{
  transform:translateY(-3px);
  border-color:rgba(126,141,255,.25);
  background:rgba(255,255,255,.055);
}

.pb-quick-icon{
  width:35px;
  height:35px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:rgba(110,125,255,.10);
  color:#aeb8ff;
}

.pb-quick strong{
  display:block;
  margin-top:14px;
  font-size:13px;
}

.pb-quick small{
  display:block;
  margin-top:3px;
  color:var(--pb-muted2);
  font-size: 12px;
}

/* level cards */

.pb-dashboard-title{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin:42px 0 15px;
}

.pb-dashboard-title h2{
  margin:0;
  font-size:24px;
  letter-spacing:-.8px;
}

.pb-dashboard-title span{
  color:var(--pb-muted2);
  font-size:12px;
}

.pb-level-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:11px;
}

.pb-level{
  padding:20px;
}

.pb-level-top{
  display:flex;
  justify-content:space-between;
  gap:12px;
}

.pb-level-subject{
  color:#b9c0d8;
  font-size:12px;
}

.pb-level-streak{
  color:#ffb08d;
  font-size: 12px;
  font-weight:800;
}

.pb-level h3{
  margin:14px 0 14px;
  font-size:20px;
}

.pb-progress-track{
  height:7px;
  border-radius:999px;
  background:rgba(255,255,255,.065);
  overflow:hidden;
}

.pb-progress-track span{
  display:block;
  height:100%;
  border-radius:inherit;
  background:var(--pb-gradient);
}

.pb-level footer{
  margin-top:11px;
  color:var(--pb-muted2);
  font-size: 12px;
}

/* rank / activity */

.pb-insight-grid{
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:11px;
  margin-top:11px;
}

.pb-rank{
  min-height:172px;
  padding:23px;
}

.pb-rank-number{
  font-size:54px;
  line-height:1;
  font-weight:900;
  letter-spacing:-3px;
}

.pb-rank strong{
  display:block;
  margin-top:14px;
  font-size:13px;
}

.pb-rank p{
  margin:6px 0 0;
  color:var(--pb-muted2);
  font-size: 12px;
}

.pb-activity{
  padding:22px;
}

.pb-activity h3{
  margin:0 0 18px;
  font-size:14px;
}

.pb-activity .heatmap-grid{
  margin:0;
}

/* learning subject */

.pb-subject{
  margin-top:14px;
  padding:27px;
}

.pb-subject-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}

.pb-subject-head h2{
  margin:0;
  font-size:28px;
  letter-spacing:-1px;
}

.pb-subject-head span{
  color:#aeb7ff;
  font-size: 12px;
  font-weight:800;
}

.pb-stat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:8px;
  margin-bottom:18px;
}

.pb-stat{
  padding:14px 15px;
  border-radius:15px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.055);
}

.pb-stat strong{
  display:block;
  font-size:24px;
  letter-spacing:-1px;
}

.pb-stat span{
  display:block;
  margin-top:3px;
  color:var(--pb-muted2);
  font-size: 12px;
}

.pb-subsection{
  margin-top:22px;
}

.pb-subsection-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:9px;
}

.pb-subsection-title strong{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.075em;
  color:#9ca7c5;
}

.pb-learning-row{
  display:flex;
  align-items:center;
  gap:13px;
  min-height:61px;
  padding:11px 13px;
  border-radius:14px;
  color:var(--pb-text);
  text-decoration:none;
  border:1px solid transparent;
  transition:.16s ease;
}

.pb-learning-row:hover{
  border-color:var(--pb-line);
  background:rgba(255,255,255,.035);
}

.pb-learning-main{
  flex:1;
  min-width:0;
}

.pb-learning-main strong{
  display:block;
  font-size:13px;
}

.pb-learning-main small{
  display:block;
  margin-top:3px;
  color:var(--pb-muted2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.pb-point{
  flex:0 0 auto;
  padding:7px 9px;
  border-radius:10px;
  color:#82edbe;
  background:rgba(89,230,173,.08);
  font-size: 12px;
  font-weight:900;
}

.pb-gap{
  color:#ff9dab;
  background:rgba(255,112,134,.08);
}

.pb-badge{
  flex:0 0 auto;
  padding:6px 8px;
  border-radius:9px;
  color:#b6bfd9;
  background:rgba(255,255,255,.05);
  font-size: 12px;
}

/* error pattern */

.pb-pattern{
  display:grid;
  grid-template-columns:38px 1fr;
  gap:13px;
  padding:15px;
  margin:8px 0;
  border-radius:16px;
  border:1px solid rgba(255,213,106,.12);
  background:rgba(255,213,106,.045);
}

.pb-pattern-icon{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:rgba(255,213,106,.08);
  color:#ffdc80;
}

.pb-pattern small{
  color:#c8a85d;
  font-size: 12px;
  text-transform:uppercase;
  font-weight:850;
}

.pb-pattern strong{
  display:block;
  margin-top:3px;
  font-size:13px;
}

.pb-pattern p{
  margin:5px 0 0;
  color:var(--pb-muted2);
  font-size: 12px;
  line-height:1.5;
}

/* achievements */

.pb-achievements{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.pb-achievement{
  padding:10px 12px;
  border:1px solid var(--pb-line);
  border-radius:13px;
  background:rgba(255,255,255,.035);
  font-size: 12px;
}

/* assignment */

.pb-assignment{
  display:flex;
  justify-content:space-between;
  gap:14px;
  padding:13px 14px;
  margin-top:7px;
  border-radius:14px;
  border:1px solid var(--pb-line);
  color:var(--pb-text);
  text-decoration:none;
}

/* footer */

.foot{
  color:#65708c !important;
  border-top-color:rgba(255,255,255,.06) !important;
}

/* --------------------------------------------------------------------------
   Reveal animation
   -------------------------------------------------------------------------- */

.pb-reveal{
  opacity:0;
  transform:translateY(16px);
  transition:
    opacity .65s ease,
    transform .65s cubic-bezier(.22,.61,.36,1);
}

.pb-reveal.is-visible{
  opacity:1;
  transform:none;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media(max-width:1000px){
  .pb-hero{
    grid-template-columns:1fr;
    min-height:auto;
  }

  .pb-smart-demo{
    max-width:650px;
  }

  .pb-hero-copy h1{
    max-width:850px;
  }

  .pb-feature-stage{
    grid-template-columns:1fr;
  }

  .pb-game-grid{
    grid-template-columns:1fr;
  }

  .pb-game-side{
    grid-template-columns:1fr 1fr;
  }

  .pb-mission{
    grid-template-columns:1fr;
  }

  .pb-mission-side{
    min-height:245px;
    border-left:0;
    border-top:1px solid var(--pb-line);
  }
}

@media(max-width:760px){
  .pb-page{
    padding-top:32px;
  }

  .pb-hero{
    padding-top:28px;
    gap:28px;
  }

  .pb-hero-copy h1{
    letter-spacing:-2.7px;
  }

  .pb-metrics{
    grid-template-columns:1fr 1fr;
    margin-bottom:60px;
  }

  .pb-metric:nth-child(2){
    border-right:0;
  }

  .pb-metric:nth-child(-n+2){
    border-bottom:1px solid var(--pb-line);
  }

  .pb-how-grid,
  .pb-audience,
  .pb-level-grid{
    grid-template-columns:1fr;
  }

  .pb-quick-grid{
    grid-template-columns:1fr 1fr;
  }

  .pb-insight-grid{
    grid-template-columns:1fr;
  }

  .pb-student-head{
    align-items:flex-start;
    flex-direction:column;
  }

  .pb-stat-grid{
    grid-template-columns:repeat(3,1fr);
  }

  .pb-section{
    padding:62px 0;
  }

  .pb-final-cta{
    padding:34px 20px;
  }
}

@media(max-width:520px){
  .pb-hero-copy h1{
    font-size:43px;
    letter-spacing:-2.2px;
  }

  .pb-smart-demo{
    padding:18px;
  }

  .pb-demo-steps{
    grid-template-columns:1fr;
  }

  .pb-game-side{
    grid-template-columns:1fr;
  }

  .pb-quick-grid{
    grid-template-columns:1fr 1fr;
  }

  .pb-mission-main{
    padding:24px;
  }

  .pb-subject{
    padding:20px;
  }

  .pb-stat-grid{
    grid-template-columns:1fr;
  }
}

@media(prefers-reduced-motion:reduce){
  *,
  *:before,
  *:after{
    scroll-behavior:auto !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }

  .pb-reveal{
    opacity:1;
    transform:none;
  }
}