/* CodeKids Academy — kursus coding anak & remaja
   Tema gelap. Utama #0b1220, aksen #22d3ee. */

:root{
  --bg:#0b1220;
  --bg-2:#0f1a2e;
  --panel:#111c33;
  --panel-2:#16243f;
  --line:#1e3253;
  --accent:#22d3ee;
  --accent-2:#38bdf8;
  --accent-3:#a78bfa;
  --ink:#e6edf7;
  --muted:#9fb2cc;
  --dim:#6b7e9c;
  --good:#34d399;
  --warn:#fbbf24;
  --radius:16px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.7);
  --glow:0 0 0 1px rgba(34,211,238,.25), 0 0 28px -6px rgba(34,211,238,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(34,211,238,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(167,139,250,.10), transparent 55%),
    var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-2)}
img{max-width:100%}
h1,h2,h3{line-height:1.2;margin:.2em 0 .4em}
h1{font-size:clamp(1.9rem,5vw,3.1rem);letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,3.5vw,2.1rem);letter-spacing:-.01em}
p{color:var(--muted)}

/* ---------- Demo bar ---------- */
.demobar{
  background:linear-gradient(90deg,#06223a,#0b1220);
  border-bottom:1px solid var(--line);
  color:#cfe9f5;
  font-size:.82rem;
  text-align:center;
  padding:7px 12px;
}
.demobar a{color:var(--accent);font-weight:600}
.demobar b{color:#fff}

/* ---------- Layout helpers ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);
  background:rgba(34,211,238,.08);
  border:1px solid var(--line);
  padding:5px 12px;border-radius:999px;
}
.lead{font-size:1.06rem;color:var(--muted);max-width:62ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,18,32,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:#fff;font-size:1.06rem;letter-spacing:-.01em}
.brand .logo{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,#0e2740,#0b1220);
  border:1px solid var(--line);
  box-shadow:var(--glow);
  display:grid;place-items:center;
}
.brand small{display:block;font-weight:600;font-size:.68rem;color:var(--accent);letter-spacing:.12em;text-transform:uppercase}

#nav{display:none}
.menu{list-style:none;display:flex;align-items:center;gap:4px;margin:0;padding:0}
.menu a{
  display:block;color:var(--muted);font-weight:600;font-size:.94rem;
  padding:9px 13px;border-radius:10px;
}
.menu a:hover{color:#fff;background:var(--panel)}
.menu a.active{color:var(--bg);background:var(--accent)}
.menu .cta a{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#04222e;box-shadow:var(--glow);
}
.menu .cta a:hover{color:#04222e;filter:brightness(1.06)}

.burger{display:none;cursor:pointer;width:44px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--panel);place-items:center}
.burger span,.burger span::before,.burger span::after{
  content:"";display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;
}
.burger span::before{position:absolute;top:-6px}
.burger span::after{position:absolute;top:6px}

@media (max-width:820px){
  .burger{display:grid}
  .menu{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--bg-2);border-bottom:1px solid var(--line);
    padding:10px 16px 16px;
    max-height:0;overflow:hidden;opacity:0;visibility:hidden;
    transition:max-height .28s ease,opacity .2s ease;
  }
  .nav{position:relative;flex-wrap:wrap}
  #nav:checked ~ .menu{max-height:540px;opacity:1;visibility:visible}
  .menu a{padding:12px 13px}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:700;font-size:.96rem;
  padding:13px 22px;border-radius:12px;border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04222e;box-shadow:var(--glow)}
.btn-primary:hover{color:#04222e;filter:brightness(1.07)}
.btn-ghost{background:var(--panel);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{color:#fff;border-color:var(--accent)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:64px 0 52px}
.hero h1 .grad{
  background:linear-gradient(90deg,var(--accent),var(--accent-3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-stats .stat{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px;min-width:108px;
}
.hero-stats .stat b{display:block;font-size:1.5rem;color:#fff}
.hero-stats .stat span{font-size:.78rem;color:var(--dim)}

/* code card illustration */
.codecard{
  background:linear-gradient(180deg,#0d1a30,#0a1424);
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
  overflow:hidden;
}
.codecard .bar{display:flex;gap:7px;padding:13px 16px;border-bottom:1px solid var(--line);background:#0b1729}
.codecard .bar i{width:11px;height:11px;border-radius:50%;display:block}
.dot-r{background:#ff5f56}.dot-y{background:#ffbd2e}.dot-g{background:#27c93f}
.codecard pre{margin:0;padding:18px 18px 22px;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:.82rem;line-height:1.7;color:#cfe0f3;overflow-x:auto}
.codecard .k{color:var(--accent-3)}
.codecard .s{color:var(--good)}
.codecard .f{color:var(--accent)}
.codecard .c{color:var(--dim)}
.codecard .n{color:var(--warn)}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  transition:transform .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--accent)}
.card h3{color:#fff;font-size:1.12rem}
.ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:12px;
  background:rgba(34,211,238,.10);border:1px solid var(--line);color:var(--accent);
}
.tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--accent);background:rgba(34,211,238,.1);border:1px solid var(--line);padding:3px 10px;border-radius:999px;margin-bottom:10px}
.tag.purple{color:var(--accent-3);background:rgba(167,139,250,.12)}
.tag.green{color:var(--good);background:rgba(52,211,153,.12)}
.tag.amber{color:var(--warn);background:rgba(251,191,36,.12)}

.section-head{margin-bottom:30px}
.section-head.center{margin-left:auto;margin-right:auto;max-width:680px}

/* ---------- Program / level cards ---------- */
.prog{display:flex;flex-direction:column;height:100%}
.prog .price{margin-top:auto;padding-top:16px;color:#fff;font-weight:800;font-size:1.2rem}
.prog .price span{font-size:.78rem;color:var(--dim);font-weight:600}
.prog ul{list-style:none;padding:0;margin:14px 0 0;font-size:.92rem;color:var(--muted)}
.prog ul li{padding:6px 0 6px 26px;position:relative}
.prog ul li::before{content:"";position:absolute;left:0;top:11px;width:14px;height:9px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}

/* ---------- Steps ---------- */
.steps{counter-reset:s;display:grid;gap:16px}
.step{display:flex;gap:16px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.step .num{counter-increment:s;flex:0 0 auto;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#04222e;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.step .num::before{content:counter(s)}
.step h3{margin:0 0 3px;font-size:1.04rem;color:#fff}
.step p{margin:0;font-size:.92rem}

/* ---------- Stats band ---------- */
.band{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-block:1px solid var(--line)}
.band .grid-4{text-align:center}
.band .big{font-size:2.2rem;font-weight:800;color:#fff;display:block}
.band .big .grad{background:linear-gradient(90deg,var(--accent),var(--accent-3));-webkit-background-clip:text;background-clip:text;color:transparent}
.band p{margin:2px 0 0;font-size:.86rem;color:var(--dim)}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
th{background:var(--panel);color:#fff;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
td{color:var(--muted)}
tr:last-child td{border-bottom:none}
td b{color:var(--ink)}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.shot{
  aspect-ratio:4/3;border-radius:14px;border:1px solid var(--line);position:relative;overflow:hidden;
  display:grid;place-items:end;padding:14px;
}
.shot span{position:relative;z-index:2;font-size:.82rem;font-weight:700;color:#fff;background:rgba(8,14,26,.6);padding:4px 10px;border-radius:8px;backdrop-filter:blur(4px)}
.g1{background:linear-gradient(135deg,#0e7490,#0b1220)}
.g2{background:linear-gradient(135deg,#6d28d9,#0b1220)}
.g3{background:linear-gradient(135deg,#0369a1,#0b1220)}
.g4{background:linear-gradient(135deg,#be185d,#0b1220)}
.g5{background:linear-gradient(135deg,#047857,#0b1220)}
.g6{background:linear-gradient(135deg,#b45309,#0b1220)}
.shot::after{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(0deg,transparent 0 22px,rgba(255,255,255,.04) 22px 23px),
  repeating-linear-gradient(90deg,transparent 0 22px,rgba(255,255,255,.04) 22px 23px)}

/* ---------- Quote / testi ---------- */
.testi{display:grid;gap:18px}
.quote{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}
.quote p{color:var(--ink);font-style:italic;margin:0 0 14px}
.who{display:flex;align-items:center;gap:12px}
.who .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-3));display:grid;place-items:center;font-weight:800;color:#04222e}
.who b{color:#fff;display:block;font-size:.92rem}
.who small{color:var(--dim)}

/* ---------- CTA band ---------- */
.cta-band{
  background:
    radial-gradient(600px 300px at 80% 0%, rgba(34,211,238,.16), transparent 60%),
    linear-gradient(135deg,#0e2740,#0b1220);
  border:1px solid var(--line);border-radius:22px;padding:42px;text-align:center;box-shadow:var(--shadow);
}
.cta-band h2{color:#fff}

/* ---------- Forms ---------- */
.form-note{font-size:.82rem;color:var(--warn);background:rgba(251,191,36,.08);border:1px solid var(--line);border-radius:10px;padding:9px 14px;display:inline-block;margin-bottom:18px}
form{display:grid;gap:14px}
.field{display:grid;gap:6px}
label{font-size:.84rem;font-weight:600;color:var(--ink)}
input,select,textarea{
  font:inherit;color:var(--ink);background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;width:100%;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ---------- Info / contact ---------- */
.info{display:flex;gap:14px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}
.info .ico{margin:0}
.info h3{margin:0 0 2px;font-size:1rem;color:#fff}
.info p{margin:0;font-size:.92rem}

.map{height:220px;border-radius:14px;border:1px solid var(--line);background:
  linear-gradient(135deg,#0d1a30,#0a1424);
  position:relative;overflow:hidden;display:grid;place-items:center}
.map::before{content:"";position:absolute;inset:0;background:
  repeating-linear-gradient(0deg,transparent 0 28px,rgba(34,211,238,.08) 28px 29px),
  repeating-linear-gradient(90deg,transparent 0 28px,rgba(34,211,238,.08) 28px 29px)}
.map span{position:relative;z-index:2;color:var(--muted);font-size:.9rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);margin-top:24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding:46px 0 28px}
.site-footer h4{color:#fff;font-size:.84rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 14px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:8px 0}
.site-footer a{color:var(--muted);font-size:.92rem}
.site-footer a:hover{color:var(--accent)}
.site-footer .brand{margin-bottom:12px}
.foot-bottom{border-top:1px solid var(--line);padding:18px 0;text-align:center;color:var(--dim);font-size:.82rem}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:760px){
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:42px 0}
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .two{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 20px}
  .section{padding:42px 0}
}