/* =====================================================================
   Ruang Napas — light-editorial, ivory + sage + arang
   Theme lock terang. Satu section arang sebagai color block (1x saja).
   VISUAL_DENSITY 2: jarak antar-section sengaja besar.
   Measure: max-width pembungkus teks DISPLAY diukur pakai vw/px, bukan ch.
   ===================================================================== */
:root{
  --canvas:#F6F4EE;
  --ink:#2B2D2A;
  --accent:#8FA58B;
  --arang:#2B2D2A;
  --muted:rgba(43,45,42,.62);
  --muted-light:rgba(246,244,238,.66);
  --font-display:"Instrument Sans", system-ui, sans-serif;
  --font-body:"Instrument Sans", system-ui, sans-serif;
  --gutter:clamp(20px,4.5vw,72px);
  --radius:14px;                      /* satu skala radius untuk seluruh halaman */
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-napas:cubic-bezier(.77,0,.175,1);   /* dari brief, dipakai untuk napas */
  --ease-brand:cubic-bezier(.37,0,.63,1);    /* TENANG: satu tanda tangan halaman */
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:auto}
html.lenis{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{
  background:var(--canvas);color:var(--ink);
  font-family:var(--font-body);font-size:clamp(15px,1.05vw,17px);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--canvas)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}

/* ===== Tipografi ===== */
.display{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(2.8rem,7vw,6rem);line-height:1.05;letter-spacing:-.025em;
  text-wrap:balance;
}
.display--md{font-size:clamp(1.9rem,3.8vw,3.2rem);line-height:1.1}
.eyebrow{
  font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin-bottom:1.1rem;
}
.lead{max-width:44ch;margin-top:1.3rem;color:var(--muted);font-size:1.02rem}

/* ===== Tombol ===== */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;margin-top:2.2rem;
  padding:.95rem 1.7rem;border-radius:999px;
  background:var(--ink);color:var(--canvas);
  font-size:.85rem;font-weight:500;letter-spacing:.02em;white-space:nowrap;
  transition:background .2s var(--ease-out), color .2s var(--ease-out), transform .16s var(--ease-out);
}
.btn:active{transform:scale(.97)}
.btn--small{padding:.6rem 1.15rem;font-size:.76rem;margin-top:0}
/* Sage #8FA58B + teks arang = 5.9:1 (lolos AA). Teks ivory di atas sage
   hanya 2.6:1, jadi tidak dipakai. */
.btn--accent{background:var(--accent);color:var(--ink)}
@media (hover:hover) and (pointer:fine){
  .btn:hover{background:var(--accent);color:var(--ink)}
  .btn--accent:hover{background:var(--ink);color:var(--canvas)}
}

/* ===== Nav ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;height:66px;
  display:flex;justify-content:space-between;align-items:center;
  padding:0 var(--gutter);color:var(--ink);
}
.nav::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(to bottom,rgba(246,244,238,.88),rgba(246,244,238,0));
}
.nav__brand{font-family:var(--font-display);font-weight:600;font-size:1rem;letter-spacing:-.01em}
.nav__links{display:flex;gap:1.5rem;align-items:center;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
/* Di atas section arang, nav dibalik jadi terang */
.nav.is-light{color:var(--canvas)}
.nav.is-light::before{background:linear-gradient(to bottom,rgba(43,45,42,.88),rgba(43,45,42,0))}
.nav.is-light .btn{background:var(--canvas);color:var(--ink)}

/* ===== Cara masuk: mask-lines =====
   Tidak ada layar penutup. Tiap baris hero tersingkap dari mask-nya
   sendiri, jadi halaman terasa sudah ada sejak awal, bukan dibuka. */
.masuk{display:block;overflow:hidden}
.masuk > span{display:block}

/* ===== 1. Hero — video scrub ===== */
.scene{position:relative;height:100vh;height:100svh;overflow:hidden;display:grid;align-items:end}
.scene__media{position:absolute;inset:0}
.scene__media video{width:100%;height:100%;object-fit:cover}
.scene__media::after{ /* scrim ivory: teks kiri bawah terbaca tanpa menggelapkan ruang */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top,rgba(246,244,238,.92),rgba(246,244,238,.32) 46%,rgba(246,244,238,0) 78%);
}
.scene__copy{
  position:relative;z-index:2;padding:var(--gutter);
  padding-bottom:calc(var(--gutter) + 3vh);
  max-width:min(48vw,640px);opacity:0;transform:translateY(30px);
}

/* ===== 2. Napas ===== */
.napas{
  position:relative;min-height:100vh;min-height:100svh;
  display:grid;place-items:center;text-align:center;padding:0 var(--gutter);
}
/* inset:0 + margin:auto memusatkan lingkaran tanpa memakai transform,
   jadi properti transform tetap bebas dipakai GSAP untuk scale napas. */
.napas__ring{
  position:absolute;inset:0;margin:auto;
  width:min(54vh,460px);height:min(54vh,460px);border-radius:50%;
  border:1px solid var(--accent);opacity:.5;
  transform:scale(.72);          /* nilai awal; site.js yang menganimasikan */
}
/* Label dikeluarkan dari alur supaya kata napas jadi satu-satunya item grid,
   dengan begitu kata dan lingkaran sama-sama terpusat di section. */
.napas__label{
  position:absolute;left:50%;top:calc(50% - min(30vh,250px));translate:-50% 0;
  z-index:1;white-space:nowrap;
  font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.napas__word{
  position:relative;z-index:1;
  font-size:clamp(1.8rem,5.2vw,4.1rem);letter-spacing:-.02em;
}

/* ===== 3. Kelas — 2 kolom ===== */
.kelas{
  display:grid;grid-template-columns:.85fr 1.15fr;
  gap:clamp(30px,6vw,110px);align-items:center;
  padding:clamp(110px,18vh,220px) var(--gutter);
}
.kelas__foto{overflow:hidden;border-radius:var(--radius);aspect-ratio:4/5}
.kelas__foto img{width:100%;height:118%;object-fit:cover;will-change:transform}
.kelas__list{margin-top:2.6rem;display:grid;gap:1.4rem;max-width:46ch}
.kelas__list > div{border-top:1px solid rgba(43,45,42,.14);padding-top:1.1rem}
.kelas__list dt{font-weight:600;font-size:1rem;margin-bottom:.25rem}
.kelas__list dd{color:var(--muted);font-size:.95rem}

/* ===== 4. Jadwal — section arang ===== */
.jadwal{
  background:var(--arang);color:var(--canvas);
  padding:clamp(110px,18vh,220px) var(--gutter);
}
.jadwal__head{max-width:min(44vw,600px);margin-bottom:clamp(40px,7vh,84px)}
.jadwal__head .lead{color:var(--muted-light)}
.jadwal__list{font-family:var(--font-display);font-weight:600;letter-spacing:-.02em}
.jadwal__list > li{
  font-size:clamp(1.7rem,5vw,3.6rem);line-height:1.55;
  border-color:rgba(246,244,238,.18)!important;
}
.jadwal__foot{margin-top:clamp(30px,5vh,56px);color:var(--muted-light);font-size:.85rem}

/* ===== 5. Mulai — bento 3 sel (2 foto + 1 harga) ===== */
.mulai{padding:clamp(110px,18vh,220px) var(--gutter) clamp(60px,9vh,110px)}
.mulai__head{max-width:min(46vw,640px);margin-bottom:clamp(40px,7vh,84px)}
.bento{
  display:grid;grid-template-columns:1fr 1fr 1fr;
  grid-template-rows:auto auto;gap:clamp(16px,2vw,28px);
}
.bento__cell{border-radius:var(--radius);overflow:hidden;margin:0}
.bento__cell--foto:nth-of-type(1){grid-column:1;grid-row:1 / span 2}
.bento__cell--foto:nth-of-type(2){grid-column:2;grid-row:1 / span 2}
.bento__cell--foto img{width:100%;height:100%;object-fit:cover;min-height:clamp(240px,42vh,420px)}
.bento__cell--harga{
  grid-column:3;grid-row:1 / span 2;
  background:var(--accent);color:var(--ink);
  padding:clamp(26px,3vw,44px);display:flex;flex-direction:column;
}
.bento__cell--harga h3{font-weight:600;font-size:1.05rem;margin-bottom:1.6rem}
.harga{display:grid;gap:1.5rem}
.harga dt{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;opacity:.75}
.harga__angka{font-family:var(--font-display);font-weight:600;font-size:clamp(1.5rem,2.4vw,2rem);margin-top:.2rem}
.harga__note{font-size:.88rem;opacity:.8;margin-top:.15rem}
.bento__cell--harga .btn{margin-top:auto;align-self:flex-start}
.harga__kecil{font-size:.76rem;opacity:.75;margin-top:.9rem}

/* ===== Footer ===== */
.footer{
  padding:0 var(--gutter) clamp(40px,6vh,70px);
  display:flex;justify-content:space-between;align-items:baseline;gap:1.5rem;flex-wrap:wrap;
  font-size:.8rem;color:var(--muted);
}
.footer__brand{font-family:var(--font-display);font-weight:600;color:var(--ink)}
.footer__note{max-width:62ch}

/* ===== Responsive ===== */
@media (max-width:980px){
  .kelas{grid-template-columns:1fr;gap:clamp(28px,5vh,52px)}
  .kelas__foto{aspect-ratio:4/3}
  .bento{grid-template-columns:1fr 1fr}
  .bento__cell--foto:nth-of-type(1){grid-column:1;grid-row:1}
  .bento__cell--foto:nth-of-type(2){grid-column:2;grid-row:1}
  .bento__cell--harga{grid-column:1 / span 2;grid-row:2}
}
@media (max-width:720px){
  .nav__links a:not(.btn){display:none}
  .scene__copy{max-width:none}
  .jadwal__head,.mulai__head{max-width:none}
  .bento{grid-template-columns:1fr}
  .bento__cell--foto:nth-of-type(1),.bento__cell--foto:nth-of-type(2){grid-column:1}
  .bento__cell--foto:nth-of-type(2){grid-row:2}
  .bento__cell--harga{grid-column:1;grid-row:3}
  .footer{flex-direction:column;gap:.6rem}
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  .scene__copy{opacity:1;transform:none}
  .napas__ring{transform:scale(.92)}
  .kelas__foto img{height:100%}
}