/* =====================================================================
   SÉRA Skin — product-freeze dengan palet light-editorial
   Palet dikunci: gading / tinta / emas rose, penyeimbang sage.
   Catatan measure: semua max-width yang membungkus teks DISPLAY diukur
   pakai vw/px, bukan ch. `ch` dihitung dari font body, jadi kolom jadi
   jauh terlalu sempit untuk judul 90px.
   ===================================================================== */
:root{
  --canvas:#F7F5F0;
  --ink:#1C1F1B;
  --accent:#B98B6A;
  --sage:#DCE5D6;
  --muted:rgba(28,31,27,.72);   /* 5.3:1 di atas --canvas, WCAG AA */
  --font-display:"Archivo Black", system-ui, sans-serif;
  --font-body:"Instrument Sans", system-ui, sans-serif;
  --gutter:clamp(20px,4.5vw,72px);
  --radius:12px;                      /* satu skala radius untuk seluruh halaman */
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-brand:cubic-bezier(.37,0,.63,1);   /* TENANG: pelan, tanpa hentak */
}

*{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:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{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:2px}

/* ===== Tipografi ===== */
.display{
  font-family:var(--font-display);font-weight:400;   /* Archivo Black hanya punya 400 */
  text-transform:uppercase;letter-spacing:-.02em;line-height:.98;
  font-size:clamp(2.4rem,7vw,6rem);text-wrap:balance;
}
.display--md{font-size:clamp(1.7rem,3.4vw,3rem);line-height:1.08}
.eyebrow{
  font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin-bottom:1rem;
}
.lead{max-width:42ch;margin-top:1.2rem;color:var(--muted);font-size:1.02rem}
.note{margin-top:1.6rem;font-size:.82rem;color:var(--muted)}

/* ===== Tombol ===== */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  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}
.btn--accent{background:var(--accent);color:var(--ink)}
.btn--ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px rgba(28,31,27,.28)}
@media (hover:hover) and (pointer:fine){
  .btn:hover{background:var(--accent);color:var(--ink)}
  .btn--accent:hover{background:var(--ink);color:var(--canvas)}
  .btn--ghost:hover{background:var(--ink);color:var(--canvas);box-shadow:none}
}
.link-arrow{
  font-size:.85rem;border-bottom:1px solid currentColor;padding-bottom:2px;
  transition:color .2s var(--ease-out)
}
@media (hover:hover) and (pointer:fine){ .link-arrow:hover{color:var(--accent)} }

/* ===== 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(247,245,240,.88),rgba(247,245,240,0));
}
.nav__brand{font-family:var(--font-display);font-size:1rem;letter-spacing:.02em}
.nav__links{display:flex;gap:1.5rem;align-items:center;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}

/* ===== Momen khas: pilih keluhan ===== */
.pilih{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:2rem}
.pilih__label{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-right:.4rem}
.pilih__opsi{
  font:inherit;font-size:.84rem;cursor:pointer;
  padding:.5rem 1rem;border-radius:999px;
  border:1px solid rgba(28,31,27,.22);background:transparent;color:var(--ink);
  transition:background .2s var(--ease-out),border-color .2s var(--ease-out),transform .16s var(--ease-out);
}
.pilih__opsi:active{transform:scale(.97)}
.pilih__opsi[aria-pressed="true"]{background:var(--ink);color:var(--canvas);border-color:var(--ink)}
@media (hover:hover) and (pointer:fine){
  .pilih__opsi:hover{border-color:var(--ink)}
  .pilih__opsi[aria-pressed="true"]:hover{border-color:var(--ink)}
}
/* Bahan yang menjawab keluhan terpilih diberi garis aksen, bukan warna
   latar, supaya kontras teksnya tidak pernah berubah. */
.bahan__list > div{border-left:2px solid transparent;padding-left:0;transition:border-color .3s var(--ease-out),padding-left .3s var(--ease-out)}
.bahan__list > div.is-jawab{border-left-color:var(--accent);padding-left:1rem}
.bahan__alasan{display:block;margin-top:.4rem;font-size:.86rem;color:var(--accent)}

/* ===== 1. Hero — scene 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 gading: teks kiri terbaca tanpa menggelapkan foto */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(95deg,rgba(247,245,240,.94) 0%,rgba(247,245,240,.60) 36%,rgba(247,245,240,0) 64%);
}
.scene__copy{
  position:relative;z-index:2;
  padding:var(--gutter);padding-bottom:calc(var(--gutter) + 3vh);
  opacity:0;transform:translateY(30px);
}
.hero__copy{max-width:min(46vw,620px)}
.hero__title{font-size:clamp(3.4rem,11vw,9rem);letter-spacing:-.03em}
.hero__cta{display:flex;align-items:center;gap:1.5rem;margin-top:2rem;flex-wrap:wrap}

/* ===== 2. Statement (kinetic + particles) ===== */
.statement{
  position:relative;min-height:100vh;min-height:100svh;display:grid;place-items:center;
  padding:0 var(--gutter);text-align:center;overflow:hidden;
}
.statement__bg{position:absolute;inset:0;z-index:0}
.statement__bg img[data-fallback]{width:100%;height:100%;object-fit:cover;opacity:.25}
.statement__word{position:relative;z-index:1;font-size:clamp(2.2rem,9vw,7.5rem);color:var(--ink)}

/* ===== 3. Bahan (float) ===== */
.bahan{
  position:relative;display:grid;grid-template-columns:1fr 1fr;align-items:center;
  gap:clamp(24px,5vw,80px);
  padding:clamp(90px,15vh,180px) var(--gutter);
  min-height:100vh;
}
.bahan__float{position:relative;min-height:70vh}
.bahan__float .botol{
  position:absolute;left:50%;top:50%;translate:-50% -50%;
  width:min(26vw,320px);filter:drop-shadow(0 40px 60px rgba(28,31,27,.18));
}
.bahan__float .daun{
  position:absolute;left:-6%;bottom:6%;width:min(30vw,380px);
}
.bahan__copy{position:relative;z-index:1}
.bahan__list{margin-top:2.4rem;display:grid;gap:1.5rem;max-width:44ch}
.bahan__list dt{
  font-size:.95rem;font-weight:500;letter-spacing:.01em;margin-bottom:.3rem;color:var(--accent)
}
.bahan__list dd{color:var(--muted);font-size:.95rem}

/* ===== 4. Tekstur ===== */
.tekstur{position:relative;min-height:100vh;min-height:100svh;display:grid;align-items:center;overflow:hidden}
.tekstur__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;will-change:transform}
.tekstur::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(to top,rgba(247,245,240,.86),rgba(247,245,240,.18) 55%,rgba(247,245,240,.5));
}
.tekstur__copy{position:relative;z-index:2;padding:var(--gutter);max-width:min(52vw,720px)}

/* ===== 5. Cara pakai (sticky stack, CSS murni) ===== */
.cara{background:var(--sage);padding:clamp(80px,13vh,160px) var(--gutter) 0}
.cara__head{max-width:min(48vw,640px);margin-bottom:clamp(32px,6vh,64px)}
.cara__stack{padding-bottom:12vh}
.cara__card{
  position:sticky;background:var(--canvas);border-radius:var(--radius);
  padding:clamp(28px,4vw,52px);margin-bottom:2.4rem;
  box-shadow:0 20px 50px rgba(28,31,27,.10);
  display:grid;gap:.7rem;align-content:start;min-height:min(30vh,260px);
}
.cara__card:nth-child(1){top:14vh}
.cara__card:nth-child(2){top:18vh}
.cara__card:nth-child(3){top:22vh}
.cara__n{
  font-family:var(--font-display);text-transform:uppercase;letter-spacing:-.01em;
  font-size:clamp(1.4rem,2.6vw,2.2rem);
}
.cara__card p{color:var(--muted);max-width:46ch;font-size:1.02rem}
.cara__card--img{grid-template-columns:1fr auto;grid-template-rows:auto 1fr;align-items:start}
.cara__card--img img{
  grid-column:2;grid-row:1 / span 2;width:min(22vw,240px);
  border-radius:calc(var(--radius) - 4px);object-fit:cover;aspect-ratio:4/5;
}

/* ===== 6. Beli ===== */
.beli{
  padding:clamp(90px,15vh,180px) var(--gutter);
  display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(40px,6vw,96px);align-items:end;
}
.beli__cta{display:flex;gap:1rem;margin-top:2.2rem;flex-wrap:wrap}
.beli__facts{display:grid;gap:1.7rem}
.beli__facts dt{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:.35rem}
.beli__facts dd{font-size:.98rem}

/* ===== Footer ===== */
.footer{
  padding:0 var(--gutter) clamp(36px,6vh,64px);
  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);color:var(--ink)}
.footer__note{max-width:52ch}

/* ===== Responsive ===== */
@media (max-width:980px){
  /* min-height:100vh itu untuk layout dua kolom. Di satu kolom isinya
     sudah lebih tinggi dari itu, jadi cuma menambah ruang kosong. */
  .bahan{grid-template-columns:1fr;min-height:auto;padding-block:clamp(70px,10vh,120px)}
  .bahan__float{min-height:56vh;order:-1}
  .beli{grid-template-columns:1fr;align-items:start}
}
@media (max-width:720px){
  .nav__links a:not(.btn){display:none}
  .hero__copy{max-width:none}
  .hero__stage::after{background:linear-gradient(to top,rgba(247,245,240,.94) 26%,rgba(247,245,240,.45) 62%,rgba(247,245,240,.3))}
  .tekstur__copy{max-width:none}
  .bahan__float .botol{width:46vw}
  .bahan__float .daun{width:56vw;left:-10%}
  .cara__card{min-height:auto}
  .cara__card--img{grid-template-columns:1fr}
  .cara__card--img img{grid-column:1;grid-row:auto;width:min(60vw,260px)}
  .footer{flex-direction:column;gap:.6rem}
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  .cara__card{position:static}
  .scene__copy{opacity:1;transform:none}
}