:root{
  --green-900:#0f3d2e;
  --green-700:#1a6b4a;
  --green-600:#1f8a5f;
  --green-500:#2ea86e;
  --amber-500:#f0a93e;
  --ink:#1c2320;
  --ink-soft:#4b5a54;
  --bg:#f6f8f6;
  --card:#ffffff;
  --border:#e1e8e3;
  --radius:14px;
  --shadow:0 4px 18px rgba(15,61,46,.08);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
}
a{color:var(--green-700);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;height:auto;border-radius:10px;}
h1,h2,h3{color:var(--green-900);line-height:1.25;}
h1{font-size:1.9rem;margin:.2em 0 .5em;}
h2{font-size:1.4rem;margin:1.2em 0 .5em;}
h3{font-size:1.1rem;margin:1em 0 .4em;}

/* Header */
.site-header{
  background:linear-gradient(120deg,var(--green-900),var(--green-700));
  position:sticky;top:0;z-index:50;
  box-shadow:0 2px 10px rgba(0,0,0,.12);
}
.header-inner{
  max-width:1100px;margin:0 auto;padding:.7rem 1.2rem;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:.6rem;color:#fff;}
.brand:hover{text-decoration:none;}
.brand-badge{
  background:var(--amber-500);color:var(--green-900);
  font-weight:800;border-radius:10px;padding:.4rem .6rem;font-size:1rem;
}
.brand-text{font-weight:700;font-size:1.05rem;color:#fff;}
.brand-text small{font-weight:400;font-size:.68rem;color:#dff0e6;}
.nav-toggle{
  display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;
}
.main-nav ul{
  list-style:none;display:flex;flex-wrap:wrap;gap:.2rem;margin:0;padding:0;
}
.main-nav a{
  color:#eafaf1;padding:.5rem .7rem;border-radius:8px;font-size:.88rem;display:block;
}
.main-nav a:hover,.main-nav a.active{
  background:rgba(255,255,255,.16);text-decoration:none;color:#fff;
}

/* Content */
.content{max-width:1000px;margin:0 auto;padding:2rem 1.2rem 3rem;}
.hero{
  background:linear-gradient(135deg,var(--green-600),var(--green-500));
  color:#fff;border-radius:var(--radius);padding:2.2rem 1.6rem;margin-bottom:1.8rem;
  box-shadow:var(--shadow);
}
.hero h1{color:#fff;margin-top:0;}
.hero p{color:#eafaf1;margin-bottom:0;}

.menu-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem;
}
.menu-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.2rem;box-shadow:var(--shadow);transition:transform .15s ease;
}
.menu-card:hover{transform:translateY(-3px);text-decoration:none;}
.menu-card h3{margin:.2rem 0 0;color:var(--green-800,var(--green-700));}
.menu-icon{font-size:1.6rem;}

.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.4rem 1.6rem;margin-bottom:1.4rem;box-shadow:var(--shadow);
}
.breadcrumb{margin-bottom:1rem;font-size:.9rem;}
.breadcrumb a{color:var(--green-700);}

.article{margin-bottom:2.2rem;padding-bottom:2rem;border-bottom:1px dashed var(--border);}
.article:last-child{border-bottom:none;}
.article h2{margin-top:0;}
.article .kicker{
  display:inline-block;background:var(--amber-500);color:var(--green-900);
  font-weight:700;font-size:.72rem;letter-spacing:.03em;text-transform:uppercase;
  padding:.2rem .6rem;border-radius:99px;margin-bottom:.6rem;
}
.quote{
  border-left:4px solid var(--green-500);background:#eef8f1;
  padding:.7rem 1rem;margin:1rem 0;border-radius:0 8px 8px 0;font-style:italic;color:var(--ink-soft);
}

.materi-list{display:grid;gap:1rem;}
.materi-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.2rem 1.4rem;box-shadow:var(--shadow);display:flex;gap:1rem;align-items:flex-start;
}
.materi-num{
  flex:0 0 auto;background:var(--green-600);color:#fff;font-weight:800;
  width:2.4rem;height:2.4rem;border-radius:50%;display:flex;align-items:center;justify-content:center;
}
.btn{
  display:inline-block;background:var(--green-600);color:#fff;padding:.55rem 1rem;
  border-radius:8px;font-weight:600;font-size:.9rem;margin-top:.5rem;
}
.btn:hover{background:var(--green-700);text-decoration:none;color:#fff;}
.btn.secondary{background:var(--amber-500);color:var(--green-900);}
.btn.secondary:hover{background:#e0983a;color:var(--green-900);}

.slides-embed{margin:1rem 0;}
.slides-embed iframe{border-radius:10px;border:1px solid var(--border);width:100%;}
.slides-caption{font-size:.85rem;color:var(--ink-soft);margin-top:.4rem;}

.video-embed{margin:1.2rem 0;}
.video-ratio{position:relative;padding-top:56.25%;border-radius:10px;overflow:hidden;background:#000;}
.video-ratio iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0;}
.video-caption{font-weight:600;margin-top:.5rem;}

.doc-list{list-style:none;padding:0;margin:0;display:grid;gap:.9rem;}
.doc-list li{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:1rem 1.2rem;box-shadow:var(--shadow);
}
.doc-list h4{margin:0 0 .3rem;color:var(--green-900);}
.doc-list p{margin:0 0 .5rem;color:var(--ink-soft);font-size:.92rem;}

.subject-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;}

.school-list{color:var(--ink-soft);}
.school-ul{padding-left:1.2rem;}
.school-ul li{margin-bottom:.3rem;}

.step-timeline{list-style:none;padding:0;margin:0;counter-reset:step;}
.step-timeline li{
  counter-increment:step;position:relative;padding:0 0 1.6rem 2.4rem;border-left:2px solid var(--green-500);
}
.step-timeline li:last-child{border-left-color:transparent;padding-bottom:0;}
.step-timeline li::before{
  content:counter(step);position:absolute;left:-1.05rem;top:0;
  background:var(--green-600);color:#fff;width:2rem;height:2rem;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;
}
.step-timeline h3{margin-top:0;}
.step-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.5rem 1.2rem;margin:.5rem 0;}
.step-meta div span{display:block;font-size:.78rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.03em;}

.wa-float{
  position:fixed;right:1.1rem;bottom:1.1rem;background:#25D366;color:#fff;
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;box-shadow:0 6px 16px rgba(0,0,0,.25);z-index:60;
}
.wa-float:hover{text-decoration:none;filter:brightness(1.05);}

.site-footer{
  text-align:center;padding:1.6rem 1rem 2.2rem;color:var(--ink-soft);font-size:.85rem;
  border-top:1px solid var(--border);margin-top:2rem;
}

@media (max-width:820px){
  .nav-toggle{display:block;}
  .main-nav{
    display:none;width:100%;order:3;
  }
  .main-nav.open{display:block;}
  .main-nav ul{flex-direction:column;background:rgba(0,0,0,.15);border-radius:10px;padding:.4rem;margin-top:.5rem;}
}