:root{
  --paper:#f5f5f5;
  --paper-2:#ececec;
  --ink:#202124;
  --ink-dim: rgba(32,33,36,0.64);
  --ink-faint: rgba(32,33,36,0.42);
  --coral:#1a73e8;
  --coral-dark:#174ea6;
  --gold:#f9ab00;
  --lav:#188038;
  --line: rgba(32,33,36,0.12);
  --line-soft: rgba(32,33,36,0.07);
  --serif:"Poppins", sans-serif;
  --sans:"Roboto", sans-serif;
  --label:"Roboto", sans-serif;
  --dawn: linear-gradient(120deg, var(--coral) 0%, var(--gold) 52%, var(--lav) 100%);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family: var(--sans);
  background: var(--paper) url('../img/confetti-bg.svg') top center repeat;
  background-size: 900px auto;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x:hidden;
}
img{max-width:100%; display:block;}

.grow-flicker{position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none;}
.grow-flicker img{position:absolute; width:auto; opacity:0; animation-name:growFlicker; animation-timing-function:ease-in-out; animation-iteration-count:infinite;}
@keyframes growFlicker{
  0%, 100%{opacity:0; transform:scale(0.9);}
  50%{opacity:0.24; transform:scale(1);}
}
a{color:inherit; text-decoration:none;}
ul{list-style:none;}

.wrap{max-width:1140px; margin:0 auto; padding:0 40px;}
section{padding:110px 0;}
.rule{border:none; border-top:1px solid var(--line); height:0; background:none; margin:0;}
h1,h2,h3{font-family:var(--serif); font-weight:500; line-height:1.08; letter-spacing:-0.01em;}
em{font-style:italic; color:var(--coral-dark); font-weight:500;}
p{line-height:1.7;}

.eyebrow{
  font-family:var(--label); font-size:0.72rem; font-weight:700; letter-spacing:0.16em;
  text-transform:uppercase; color:var(--coral-dark);
}

/* signature motif: the threshold line */
.t-line{height:3px; width:64px; border-radius:3px; background:var(--dawn); margin:22px 0 0;}
.t-line.center{margin-left:auto; margin-right:auto;}

/* ---------- nav ---------- */
.site-nav{
  position:sticky; top:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap;
  padding:26px 40px;
  background:var(--paper);
  border-bottom:1px solid var(--line-soft);
}
.nav-subbar{display:none;}
.logo{display:flex; align-items:center; gap:11px;}
.logo-mark{height:46px; width:auto; flex-shrink:0;}
.logo-mark.lg{height:64px;}

.logo-badge{
  width:126px; height:126px; flex-shrink:0;
  background:var(--paper);
  display:flex; align-items:center; justify-content:center;
  border-radius:50%;
  box-shadow:0 6px 18px rgba(32,33,36,0.18);
  margin-bottom:16px;
}
.logo-badge .logo-mark{height:84px; width:auto;}

.site-nav .logo-mark{height:84px;}
.partner-badge{height:20px; width:auto; margin-left:20px; padding-left:20px; border-left:1px solid var(--line); flex-shrink:0;}
.nav-sep{width:1px; height:24px; background:var(--line); margin-left:26px; flex-shrink:0;}
.logo-text{font-family:var(--serif); font-style:italic; font-weight:600; font-size:1.32rem; letter-spacing:-0.01em;}
.nav-links{display:flex; align-items:center; gap:6px;}
.nav-links a{
  font-family:var(--label);
  font-size:0.82rem; font-weight:600; color:var(--ink-dim);
  padding:9px 15px; border-radius:20px; transition:all .18s ease;
}
.nav-links a:hover{color:var(--ink); background:var(--line-soft);}
.nav-links a[href="#how"]{color:#547dbf;}
.nav-links a[href="#certificates"]{color:#ea4435;}
.nav-links a[href="#funding"]{color:#f9bc15;}
.nav-links a[href="#apply"]{color:#34a851;}
.nav-toggle{display:none; background:none; border:none; cursor:pointer; flex-direction:column; gap:5px; padding:8px;}
.nav-toggle span{width:20px; height:1.5px; background:var(--ink); display:block;}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--label); font-weight:700; font-size:0.8rem;
  padding:13px 24px; border-radius:999px; cursor:pointer; border:1.5px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-solid{background:var(--coral); color:var(--paper);}
.btn-solid:hover{background:var(--coral-dark); transform:translateY(-2px); box-shadow:0 10px 22px rgba(26,115,232,0.28);}
.btn-ghost{border-color:var(--line); color:var(--ink);}
.btn-ghost:hover{border-color:var(--ink); background:var(--ink); color:var(--paper); transform:translateY(-2px);}
.btn-lg{padding:16px 30px; font-size:0.92rem;}
.btn-block{width:100%;}

/* ---------- hero ---------- */
.hero{
  position:relative; padding:100px 0 90px; overflow:hidden;
  background:rgba(255,255,255,0.65);
}
.hero::before{
  content:""; position:absolute; inset:-20% -10% auto -10%; height:130%; z-index:0; opacity:0.5;
  background:
    radial-gradient(closest-side, rgba(168,197,222,0.4), transparent 70%) 12% 20% / 46% 46% no-repeat,
    radial-gradient(closest-side, rgba(91,133,170,0.28), transparent 70%) 78% 10% / 50% 50% no-repeat,
    radial-gradient(closest-side, rgba(23,78,166,0.16), transparent 70%) 55% 65% / 48% 48% no-repeat;
  filter: blur(6px);
}
.hero-inner{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1fr auto 300px; grid-template-rows:auto auto;
  column-gap:40px; row-gap:0; align-items:start;
}
.hero-content{text-align:left; grid-column:1; grid-row:1;}
.hero h1{font-size:clamp(3.6rem,6.9vw,5.7rem); font-weight:800; margin:20px 0 24px; text-align:left;}
.hero .lede{font-size:1.1rem; color:var(--ink-dim); max-width:520px; margin-bottom:0; text-align:left;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; align-items:center; margin-bottom:54px;}
.hero-stats{
  grid-column:1 / -1; grid-row:2;
  display:grid; grid-template-columns:repeat(3,1fr); gap:40px 44px;
  margin-top:48px; padding-top:36px; border-top:1px solid var(--line);
}
.hero-stats .stat{
  max-width:none; background:var(--coral-dark); border:1px solid var(--coral-dark); border-radius:0;
  padding:28px 24px; opacity:0.85;
  transition:opacity .22s ease, transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
}
.hero-stats .stat:hover{
  opacity:1; transform:translateY(-6px); background:var(--coral);
  box-shadow:0 16px 32px rgba(32,33,36,0.24); border-color:var(--coral);
}
.hero-stats .stat .v{font-family:var(--serif); font-weight:700; font-style:italic; font-size:4.8rem; line-height:1; color:var(--paper); letter-spacing:-0.02em; transition:color .22s ease;}
.hero-stats .stat .k{font-size:0.82rem; color:rgba(245,245,245,0.78); margin-top:10px; line-height:1.35; max-width:220px; transition:color .22s ease;}
.hero-stats .stat:hover .v{color:#fff;}
.hero-stats .stat:hover .k{color:rgba(255,255,255,0.92);}

.hero-divider{grid-column:2; grid-row:1; width:1px; align-self:stretch; background:var(--line); min-height:220px;}

.hero-video{
  grid-column:3; grid-row:1;
  width:300px; display:flex; flex-direction:column; gap:10px;
}
.video-frame{
  position:relative; width:100%; aspect-ratio:16/9; border-radius:0; overflow:hidden;
  background:var(--paper-2); border:1px solid var(--line);
}
.video-frame iframe{position:absolute; inset:0; width:100%; height:100%; border:0;}
.hero-video .caption{font-size:0.74rem; color:var(--ink-dim); line-height:1.4;}

/* ---------- how it works ---------- */
.how-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:28px; margin-top:50px;}
.how-item{
  background:var(--paper); border:1px solid var(--line); border-radius:0;
  padding:28px 24px; opacity:0.85;
  transition:opacity .22s ease, transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.how-item:hover{
  opacity:1; transform:translateY(-6px);
  box-shadow:0 16px 32px rgba(32,33,36,0.14); border-color:var(--coral);
}
.how-item .n{font-family:var(--serif); font-style:italic; font-size:2.6rem; color:var(--coral-dark); line-height:1;}
.how-item h3{font-size:1.35rem; margin:16px 0 10px; font-weight:600;}
.how-item p{font-size:0.94rem; color:var(--ink-dim);}

/* ---------- section head ---------- */
.section-head{
  max-width:640px; font-size:clamp(3.8rem,6.4vw,5.2rem); font-weight:800; margin-top:18px;
  position:relative;
}
.section-head::before{
  content:""; position:absolute; left:-40px; top:0.42em;
  width:28px; height:10px; background:var(--coral);
}
.section-head p{color:var(--ink-dim); margin-top:16px; font-size:1.02rem;}
#how .section-head, #certificates .section-head, #funding .section-head, #apply .section-head{text-wrap:balance;}

/* ---------- filter chips ---------- */
.filter-row{display:flex; flex-wrap:wrap; gap:10px; margin:44px 0 40px;}
.filter-chip{
  font-family:var(--label); font-size:0.78rem; font-weight:600;
  padding:11px 18px; border-radius:999px; border:1.5px solid var(--line);
  background:none; color:var(--ink-dim); cursor:pointer; transition:all .15s ease;
}
.filter-chip:hover{border-color:var(--ink); color:var(--ink);}
.filter-chip.sel{background:var(--ink); border-color:var(--ink); color:var(--paper);}

/* ---------- cert cards ---------- */
.cert-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:22px;}
.cert-card{
  background:var(--paper); border:1.5px solid var(--line); border-radius:0;
  padding:30px; display:flex; flex-direction:column; transition:border-color .2s ease, transform .2s ease;
}
.cert-card:hover{border-color: var(--ink-faint); transform:translateY(-3px);}
.cert-card.hide{display:none;}
.cert-top{display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:16px;}
.cert-top .tag{font-family:var(--serif); font-style:italic; font-weight:700; font-size:1.1rem; color:var(--coral-dark);}
.cert-badge{
  font-family:var(--label);
  font-size:0.64rem; font-weight:700; text-transform:uppercase; letter-spacing:0.05em;
  color:var(--coral-dark); background:rgba(26,115,232,0.1); border:1px solid rgba(26,115,232,0.28);
  padding:5px 10px; border-radius:999px; white-space:nowrap;
}
.cert-card h3{font-size:1.32rem; margin-bottom:10px; font-weight:600;}
.cert-lede{font-size:0.9rem; color:var(--ink-dim); line-height:1.55; margin-bottom:18px;}
.cert-meta{font-family:var(--label); display:flex; flex-wrap:wrap; gap:7px; font-size:0.72rem; font-weight:700; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.03em; margin-bottom:18px;}
.cert-price{display:flex; align-items:baseline; gap:8px; padding-top:16px; border-top:1px solid var(--line); margin-bottom:16px;}
.cert-price .v{font-family:var(--serif); font-weight:600; font-size:1.55rem;}
.cert-price .d{font-size:0.76rem; color:var(--ink-dim);}
.cert-toggle{
  font-family:var(--label); font-size:0.76rem; font-weight:700; background:none; border:none; color:var(--ink); cursor:pointer;
  display:flex; align-items:center; justify-content:space-between; width:100%; padding:4px 0;
}
.cert-toggle .ic{font-size:1.2rem; font-weight:400; transition:transform .2s ease; color:var(--coral-dark);}
.cert-toggle[aria-expanded="true"] .ic{transform:rotate(45deg);}
.cert-detail{max-height:0; overflow:hidden; transition:max-height .3s ease;}
.cert-detail.open{max-height:900px;}
.cert-detail .inner{padding-top:18px;}
.skill-list li{position:relative; padding-left:22px; margin-bottom:10px; font-size:0.86rem; color:var(--ink-dim); line-height:1.5;}
.skill-list li::before{content:"–"; position:absolute; left:0; color:var(--coral-dark);}
.cert-cost-table{border-top:1px solid var(--line); margin:18px 0;}
.cert-cost-table .row{display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--line); font-size:0.82rem; color:var(--ink-dim);}
.cert-careers{font-size:0.82rem; color:var(--ink-dim); margin-bottom:18px; line-height:1.5;}
.cert-careers b{color:var(--ink); font-size:0.68rem; text-transform:uppercase; letter-spacing:0.04em; display:block; margin-bottom:5px; font-weight:700;}

/* ---------- funding ---------- */
.funding-list{margin-top:44px;}
.funding-list li{display:flex; gap:22px; padding:26px 0; border-bottom:1px solid var(--line);}
.funding-list li:first-child{border-top:1px solid var(--line);}
.funding-list .mark{font-family:var(--serif); font-style:italic; color:var(--coral-dark); font-size:1.4rem; flex-shrink:0; width:28px;}
.funding-list h4{font-size:1.28rem; margin-bottom:8px; font-weight:600;}
.funding-list p{font-size:1.05rem; color:var(--ink-dim);}

/* ---------- apply ---------- */
.apply{background:rgba(236,236,234,0.65);}
#how, #certificates, #funding{background:rgba(255,255,255,0.65);}
.apply-grid{display:block;}
.apply-grid > div + div{margin-top:56px; max-width:640px;}
.apply-why li{display:flex; gap:16px; padding:20px 0; border-bottom:1px solid var(--line);}
.apply-why .mark{font-family:var(--serif); font-style:italic; color:var(--coral-dark); font-size:1.2rem; flex-shrink:0;}
.apply-why h4{font-size:1.02rem; margin-bottom:5px; font-weight:600;}
.apply-why p{font-size:0.86rem; color:var(--ink-dim);}
.contact-card{margin-top:34px; padding:26px; border:1px solid var(--line); border-radius:0; background:var(--paper);}
.contact-card .row{display:flex; gap:14px; margin-bottom:14px; font-size:0.88rem;}
.contact-card .row:last-child{margin-bottom:0;}
.contact-card .row b{display:block; font-size:0.68rem; text-transform:uppercase; letter-spacing:0.05em; color:var(--ink-faint); margin-bottom:3px; font-weight:700;}

/* ---------- footer ---------- */
footer{background:var(--ink); color:rgba(255,255,255,0.62); padding:64px 0 30px;}
.foot-grid{display:grid; grid-template-columns:1.4fr repeat(3,0.9fr); gap:30px; padding-bottom:44px;}
.foot-grid .logo-text{color:var(--paper);}
.foot-grid p{max-width:280px; font-size:0.86rem; margin-top:14px;}
.foot-grid h4{font-family:var(--label); font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--paper); margin-bottom:16px; font-weight:700;}
.foot-grid li{margin-bottom:10px; font-size:0.88rem;}
.foot-grid a:hover{color:var(--paper);}
.foot-bottom{display:flex; justify-content:space-between; padding-top:26px; border-top:1px solid rgba(255,255,255,0.14); font-size:0.76rem; flex-wrap:wrap; gap:10px;}

@media (max-width:980px){
  .how-grid, .cert-grid, .apply-grid, .foot-grid{grid-template-columns:1fr !important;}
  .section-head::before{left:-22px; width:14px;}
  .nav-toggle{display:flex;}
  .partner-badge, .nav-sep{display:none;}
  .nav-subbar{
    display:flex; justify-content:center; align-items:center;
    flex-basis:100%; order:5;
    margin-top:20px; padding-top:16px; border-top:1px solid var(--line);
  }
  .partner-badge-toggle{height:18px; width:auto; max-width:100%;}
  .nav-links{
    display:none; position:absolute; top:100%; left:0; right:0;
    background:var(--paper); flex-direction:column; padding:8px 20px 16px;
    border-bottom:1px solid var(--line); gap:0;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:14px 6px; border-radius:0; border-bottom:1px solid var(--line-soft); width:100%;}
  section{padding:70px 0;}
  .wrap{padding:0 22px;}
}
@media (max-width:760px){
  .hero-inner{grid-template-columns:1fr !important;}
  .hero-content, .hero-video, .hero-stats{grid-column:1; grid-row:auto;}
  .hero-divider{display:none;}
  .hero-video{width:100%; margin-top:8px;}
  .hero-stats{
    grid-template-columns:repeat(2,1fr); gap:32px 20px;
    margin-top:28px; padding-top:22px;
  }
  .hero-stats .stat .v{font-size:3.2rem;}
  .hero{padding:100px 0 50px;}
  .hero h1{font-size:5.4rem;}
  .site-nav .logo-mark{height:62px;}
  .foot-grid .logo-badge{width:96px; height:96px;}
  .foot-grid .logo-badge .logo-mark{height:62px;}
}
@media (max-width:560px){
  .hero-stats{grid-template-columns:repeat(2,1fr); gap:26px 16px;}
  .hero-stats .stat .v{font-size:2.6rem;}
  .hero-stats .stat .k{font-size:0.7rem;}
}
@media (max-width:480px){
  .site-nav{padding:16px 20px;}
}