:root{
  --bg: #0e0e0e;
  --bg-elevated: #161412;
  --card-border: #2a2018;
  --text-primary: #f2f0ec;
  --text-secondary: #a8a29a;
  --text-muted: #6f6a63;
  --accent: #FB923C;
  --accent-tint: rgba(251,146,60,0.12);
  --stabilo-bg: #FB923C;
  --stabilo-text: #26120A;
  --wa-green: #25D366;
  --wa-green-text: #0b2b1a;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-w: 720px;
  --gutter: 24px;
  /* Skala tipografi: 6 langkah tetap + 3 clamp untuk judul */
  --fs-xs: 12px;
  --fs-sm: 14px;
  --fs-md: 15.5px;
  --fs-base: 16.5px;
  --fs-lg: 18.5px;
  --fs-xl: 20px;
  --ease: cubic-bezier(.16,.8,.24,1);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  background: var(--bg);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap{ max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
section{ padding: 44px 0; }

.eyebrow{
  display:block;
  font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

h1, h2, h3{ font-weight: 800; letter-spacing: -0.025em; line-height: 1.24; }
h1{ font-size: clamp(29px, 6.6vw, 56px); line-height:1.22; }
h2{ font-size: clamp(24px, 5.2vw, 43px); line-height: 1.28; }
h3{ font-size: var(--fs-lg); font-weight: 700; line-height: 1.38; }

p{ color: var(--text-secondary); font-size: var(--fs-base); line-height: 1.68; }

/* ===== Stabilo ===== */
mark, .stabilo{
  background: var(--stabilo-bg);
  color: var(--stabilo-text);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
html.js-reveal mark.stabilo{
  background-color: transparent;
  background-image: linear-gradient(var(--stabilo-bg), var(--stabilo-bg));
  background-repeat: no-repeat;
  background-size: 0% 100%;
  color: inherit;
  transition: background-size .72s var(--ease) .22s, color .25s ease .34s;
}
html.js-reveal [data-reveal].is-visible mark.stabilo{
  background-size: 100% 100%;
  color: var(--stabilo-text);
}
@media (prefers-reduced-motion: reduce){
  html.js-reveal mark.stabilo{
    background-color: var(--stabilo-bg) !important;
    background-image:none !important;
    color: var(--stabilo-text) !important;
    transition:none !important;
  }
}

/* ===== Tombol WhatsApp ===== */
.btn-wa{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  background: var(--wa-green);
  color: var(--wa-green-text);
  font-weight: 700; font-size: var(--fs-base);
  line-height: 1.2;
  padding: 17px 26px;
  min-height: 56px;
  border-radius: 999px;
  text-decoration:none;
  width: 100%;
  text-align: center;
  white-space: nowrap;
  transition: transform .15s ease, filter .15s ease;
}
.btn-wa:hover{ filter: brightness(1.06); transform: translateY(-1px); }
.btn-wa:active{ transform: translateY(0); }
.wa-icon{ width:22px; height:22px; fill: var(--wa-green-text); flex-shrink:0; }

.cta-note{ margin-top: 12px; font-size: var(--fs-sm); color: var(--text-muted); text-align: center; line-height:1.6; }

/* ===== [data-reveal] progressive enhancement ===== */
[data-reveal]{ opacity:1; transform:none; }
html.js-reveal [data-reveal]{
  opacity:0; transform: translateY(20px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
html.js-reveal [data-reveal].is-visible{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  html.js-reveal [data-reveal]{ opacity:1 !important; transform:none !important; transition:none !important; }
}

/* ===== HEADER ===== */
.site-header{ padding: 26px 0 0; }
.brand{ display:flex; align-items:center; }
.brand-logo{ height: 18px; width: auto; display:block; }

/* ===== S1 HERO ===== */
.hero{ padding: 32px 0 38px; }
.hero h1{ margin-bottom: 16px; }
.hero .sub{ font-size: var(--fs-lg); line-height:1.62; margin-bottom: 28px; max-width: 46ch; }

.hero-marquee-wrap{ margin: 0 -24px; position: relative; }
.marquee-label{
  margin: 36px 0 14px;
  text-align: center;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
/* Fade tepi pakai gradien overlay, bukan mask-image.
   mask-image di atas konten beranimasi memicu artefak compositing di sebagian GPU. */
.hero-marquee-wrap::before, .hero-marquee-wrap::after{
  content:''; position:absolute; top:0; bottom:0; width:64px;
  pointer-events:none; z-index:2;
}
.hero-marquee-wrap::before{ left:0; background: linear-gradient(to right, var(--bg), transparent); }
.hero-marquee-wrap::after{ right:0; background: linear-gradient(to left, var(--bg), transparent); }

.hero-marquee{
  display:flex; align-items:flex-start; gap:10px;
  overflow:hidden;
  -webkit-user-select:none; user-select:none;
}
.marquee-track{
  display:flex; align-items:flex-start; flex-shrink:0;
  gap: 10px; padding: 2px 0;
  animation: marquee-scroll 34s linear infinite;
  will-change: transform;
}
/* Dua track berdampingan: setiap track bergeser selebar dirinya sendiri
   ditambah satu gap, supaya track kedua mengisi posisi track pertama tanpa lompatan. */
@keyframes marquee-scroll{
  from{ transform: translate3d(0,0,0); }
  to{ transform: translate3d(calc(-100% - 10px),0,0); }
}
@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation:none; will-change:auto; }
  .hero-marquee{ overflow-x:auto; touch-action:pan-y; overscroll-behavior-x:contain; }
}
.marquee-item{
  flex: 0 0 auto; align-self:flex-start;
  width: 185px; aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow:hidden;
  background: var(--bg-elevated);
  position:relative;
  display:flex; align-items:center; justify-content:center;
}
/* Label slot selalu ada di lapisan bawah; gambar menimpanya saat berhasil dimuat. */
.marquee-item::before{
  content: attr(data-slot);
  color: var(--text-muted);
  font-size: var(--fs-xs); letter-spacing:0.04em; text-transform:uppercase;
  text-align:center; padding: 8px;
}
/* Gambar diposisikan absolut supaya kondisi muatnya tidak pernah memengaruhi layout. */
.marquee-item img{
  position:absolute; inset:0; z-index:1;
  width:100%; height:100%; object-fit:cover;
  -webkit-user-drag:none; user-drag:none; -moz-user-drag:none;
  pointer-events:none;
}
.marquee-item::after{
  content:''; position:absolute; inset:0; z-index:2;
  background: linear-gradient(180deg, rgba(14,14,14,0.16) 0%, rgba(14,14,14,0.06) 45%, rgba(14,14,14,0.48) 100%);
  pointer-events:none;
}
.marquee-item.img-fallback img{ display:none; }

/* ===== S2 GEJALA (blok elevated, diagonal) ===== */
/* Blok elevated: selang-seling dengan section berlatar dasar.
   Miringnya bergantian arah supaya saling mengunci. */
.gejala, .solusi, .proses, .faq{
  background: var(--bg-elevated);
  padding-top: 60px;
  padding-bottom: 60px;
}
.gejala, .proses{ clip-path: polygon(0 28px, 100% 0, 100% calc(100% - 28px), 0 100%); }
.solusi, .faq{ clip-path: polygon(0 0, 100% 28px, 100% 100%, 0 calc(100% - 28px)); }

.gejala h2{ margin-bottom: 6px; }

.gejala-list{ list-style:none; margin-top: 18px; display:grid; gap:8px; }
.gejala-list li{
  display:flex; align-items:flex-start; gap:13px;
  padding: 15px 16px;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
}
.gejala-ico{
  flex-shrink:0;
  width:34px; height:34px;
  border-radius:9px;
  background: var(--accent-tint);
  display:flex; align-items:center; justify-content:center;
}
.gejala-ico svg{ width:18px; height:18px; fill:none; stroke:var(--accent); stroke-width:1.9; stroke-linecap:round; stroke-linejoin:round; }
.gejala-body strong{
  display:block;
  font-size: var(--fs-base); font-weight:700;
  color: var(--text-primary);
  letter-spacing:-0.015em; line-height:1.38;
  margin-bottom:2px;
}
.gejala-body span{
  display:block;
  font-size: var(--fs-md); color: var(--text-secondary); line-height:1.55;
}

.gejala-closer{
  margin-top: 22px;
  font-size: var(--fs-md); font-weight: 400;
  color: var(--text-secondary); line-height: 1.62;
}

/* ===== S3 AKAR MASALAH ===== */
.akar h2{ margin-bottom: 18px; }
.akar-lead{
  font-size: var(--fs-md);
  color: var(--text-muted);
  margin-bottom: 6px;
}
.akar-ask{
  font-size: var(--fs-lg);
  font-weight: 500; line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.akar-answer{ margin-bottom: 0; }
.akar-verdict{
  margin: 26px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--card-border);
  font-size: clamp(19.5px, 4.6vw, 31px);
  font-weight: 800; letter-spacing: -0.028em; line-height: 1.36;
  color: var(--text-primary);
}

/* Riwayat pembelian: satu kartu berisi daftar pemicu dan pembeliannya.
   Bentuk kartu tunggal sengaja dipilih agar tidak menyerupai garis bernomor di S6. */
.riwayat{
  background: var(--bg-elevated);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin: 20px 0 26px;
  display: flex; flex-direction: column; gap: 14px;
}
.riwayat-item{ display: flex; gap: 12px; align-items: flex-start; }
.riwayat-item::before{
  content: '';
  flex: 0 0 auto;
  width: 12px; height: 2px;
  margin-top: 11px;
  border-radius: 1px;
  background: var(--text-muted);
}
.riwayat-text{
  font-size: var(--fs-md); line-height: 1.55;
  color: var(--text-secondary);
}
.riwayat-arrow{ color: var(--accent); padding: 0 5px; font-weight: 700; }
.riwayat-text strong{ color: var(--text-primary); font-weight: 600; }

/* ===== S4 TIGA KEMAMPUAN ===== */
.solusi h2{ margin-bottom: 12px; }
.solusi .sub{ margin-bottom: 22px; font-size: var(--fs-base); max-width: 48ch; }

.solusi-list{
  display:flex; gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 24px;
  margin: 0 -24px;
  padding: 2px 24px 6px;
  overflow-y: hidden;
  -ms-overflow-style: none; scrollbar-width: none;
  touch-action: pan-y; overscroll-behavior-x: contain;
}
.solusi-list::-webkit-scrollbar{ display:none; }
.solusi-item{
  flex: 0 0 auto;
  width: min(82%, 320px);
  scroll-snap-align: start;
  padding: 18px;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
}
.solusi-fig{
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--card-border);
  margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
}
.solusi-fig::before{
  content: attr(data-slot);
  color: var(--text-muted);
  font-size: var(--fs-xs); letter-spacing: 0.04em; text-transform: uppercase;
  text-align: center; padding: 8px;
}
.solusi-fig img{
  position: absolute; inset: 0; z-index: 1;
  width: 100%; height: 100%; object-fit: cover;
  -webkit-user-drag: none; user-drag: none;
  pointer-events: none;
}
/* Lapisan gelap tipis supaya gambar berlatar terang tidak menyilaukan
   di antara section lain yang bertema gelap. */
.solusi-fig::after{
  content: '';
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(180deg, rgba(14,14,14,0.20) 0%, rgba(14,14,14,0.10) 45%, rgba(14,14,14,0.32) 100%);
  pointer-events: none;
}
.solusi-fig.img-fallback img{ display: none; }
.solusi-body{ min-width: 0; }
.solusi-head{ margin-bottom: 10px; }
.solusi-item p{ font-size: var(--fs-md); line-height:1.6; margin-bottom: 0; }
.solusi-item p:last-child{ margin-bottom: 0; }

.solusi-lock{
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--card-border);
}
.solusi-lock strong{
  display:block; font-size: var(--fs-xl); font-weight: 800;
  letter-spacing:-0.026em; line-height:1.34;
  color: var(--text-primary); margin-bottom: 10px;
}
.solusi-lock p{ font-size: var(--fs-md); line-height:1.6; margin-bottom:0; }

/* ===== S5 KATEGORI RUANGAN ===== */
.ruangan h2{ margin-bottom: 12px; }
.ruangan .sub{ margin-bottom: 8px; font-size: var(--fs-base); }

.ruangan-slider-wrap{ margin-top: 22px; }
.ruangan-slider{
  display:flex; gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: var(--gutter);
  padding: 2px var(--gutter) 6px;
  overflow-y: hidden;
  -ms-overflow-style: none; scrollbar-width: none;
  touch-action: pan-y; overscroll-behavior-x: contain;
}
.ruangan-slider::-webkit-scrollbar{ display:none; }
.ruangan-item{
  flex: 0 0 auto;
  width: min(80%, 296px);
  scroll-snap-align: start;
  background: var(--bg-elevated);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 14px 16px 18px;
}
.ruangan-fig{
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 12px 10px;
  margin-bottom: 14px;
}
.ruangan-fig svg{ width:100%; height:auto; display:block; }
.ruangan-cap, .solusi-cap{
  display:inline-block;
  font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.ruangan-item p{ margin-top: 7px; font-size: var(--fs-md); line-height:1.58; }

.ruangan-out{
  margin-top: 26px; padding-top: 22px;
  border-top: 1px solid var(--card-border);
}
.ruangan-out p{ margin-bottom: 0; }
.ruangan-out .btn-wa{ margin-top: 28px; }

/* ===== S6 CARA KERJA ===== */
.proses h2{ margin-bottom: 10px; }
.proses .sub{ margin-bottom: 24px; font-size: var(--fs-base); }
.proses-list{ display:flex; flex-direction:column; position:relative; }
.proses-list::before{
  content:''; position:absolute;
  left: 21px; top: 22px; bottom: 22px;
  width: 1.5px; background: var(--card-border); z-index:0;
}
.proses-step{ display:flex; gap:16px; position:relative; }
.proses-icon{
  flex-shrink:0; width:44px; height:44px;
  border-radius:50%;
  background: #1a1310;
  border: 1px solid var(--card-border);
  display:flex; align-items:center; justify-content:center;
  position:relative; z-index:1;
}
.proses-num{ font-size: var(--fs-lg); font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }
.proses-content{ padding-top:6px; padding-bottom:26px; }
.proses-step.is-last .proses-content{ padding-bottom:0; }
.proses-content h3{ margin-bottom:6px; }
.proses-content p{ font-size: var(--fs-md); line-height:1.62; margin-bottom:0; }

.proses-out, .faq-out{
  margin-top: 26px;
  font-size: var(--fs-base);
  color: var(--text-secondary);
}

/* ===== S7 BUKTI (blok elevated, diagonal) ===== */
.bukti h2{ margin-bottom: 10px; }
.bukti .sub{ margin-bottom: 6px; font-size: var(--fs-base); }

.bukti-slider-wrap{ margin-top: 24px; }
.bukti-slider{
  display:flex; gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: var(--gutter);
  padding: 2px var(--gutter) 6px;
  overflow-y: hidden;
  -ms-overflow-style: none; scrollbar-width: none;
  touch-action: pan-y; overscroll-behavior-x: contain;
  -webkit-user-select:none; user-select:none;
}
.bukti-slider::-webkit-scrollbar{ display:none; }
.bukti-item{
  flex: 0 0 auto;
  width: min(78%, 320px);
  scroll-snap-align: start;
  display:flex; flex-direction:column; gap:10px;
}
.bukti-photo{
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow:hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--card-border);
  position:relative;
}
.bukti-photo img{
  width:100%; height:100%; object-fit:cover;
  filter: saturate(0.88) brightness(0.95) contrast(1.03);
  -webkit-user-drag:none; user-drag:none; -moz-user-drag:none;
  pointer-events:none;
}
.bukti-photo::after{
  content:''; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(14,14,14,0.06) 0%, rgba(14,14,14,0.02) 45%, rgba(14,14,14,0.26) 100%);
  pointer-events:none;
}
.bukti-photo.img-fallback{ display:flex; align-items:center; justify-content:center; }
.bukti-photo.img-fallback::before{
  content: attr(data-slot);
  color: var(--text-muted);
  font-size: var(--fs-xs); letter-spacing:0.04em; text-transform:uppercase;
  text-align:center; padding:10px; z-index:1;
}
.bukti-photo.img-fallback img{ display:none; }
.bukti-caption{ font-size: var(--fs-sm); color: var(--text-muted); line-height:1.6; margin-bottom:0; }

.bukti-dots, .ruangan-dots, .solusi-dots{ display:flex; justify-content:center; gap:7px; margin-top:20px; }

/* Kendali slider untuk pengguna mouse. Scrollbar disembunyikan dan roda mouse
   hanya menggulir vertikal, jadi tanpa tombol ini slider tidak bisa digeser. */
.slider-ctrl{ display:flex; align-items:center; justify-content:center; gap:16px; }
.slider-ctrl .bukti-dots, .slider-ctrl .ruangan-dots{ margin-top:20px; }
.slider-btn{ display:none; }
.bukti-dots .dot, .ruangan-dots .dot, .solusi-dots .dot{
  width:6px; height:6px; border-radius:50%;
  background: var(--card-border);
  transition: all .2s ease;
}
.bukti-dots .dot.active, .ruangan-dots .dot.active, .solusi-dots .dot.active{ background: var(--accent); width:20px; border-radius:3px; }

.bukti-hint, .ruangan-hint{
  display:flex; align-items:center; gap:8px;
  margin-top: 16px;
  font-size: var(--fs-sm); font-weight:600;
  color: var(--text-muted);
}
.bukti-hint svg, .ruangan-hint svg{ width:17px; height:17px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }

/* ===== S9 FAQ ===== */
.faq h2{ margin-bottom: 20px; }
.faq-list{ border-top: 1px solid var(--card-border); }
.faq-item{ border-bottom: 1px solid var(--card-border); }
.faq-item summary{
  list-style: none;
  cursor: pointer;
  padding: 17px 34px 17px 0;
  position: relative;
  font-size: var(--fs-base); font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  letter-spacing: -0.012em;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{
  content:''; position:absolute; right: 4px; top: 50%;
  width: 11px; height: 11px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .22s var(--ease);
}
.faq-item[open] summary::after{ transform: translateY(-20%) rotate(-135deg); }
.faq-answer{ padding: 0 0 20px; }
.faq-answer p{ font-size: var(--fs-md); line-height: 1.62; margin-bottom: 10px; }
.faq-answer p:last-child{ margin-bottom: 0; }
.faq-answer strong{ color: var(--text-primary); font-weight: 700; }

/* ===== S10 PENUTUP ===== */
.penutup{ padding: 22px 0 52px; }
.penutup-card{
  background: #1a1310;
  border: 1px solid #4a2c14;
  border-radius: var(--radius-lg);
  padding: 28px 22px;
}
.penutup-card h2{ margin-bottom: 16px; }
.penutup-card p{ margin-bottom: 13px; }
.penutup-card .btn-wa{ margin-top: 28px; }

/* ===== STICKY WA BAR (mobile) ===== */
.sticky-cta{
  position: fixed; bottom:0; left:0; right:0;
  background: rgba(14,14,14,0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--card-border);
  padding: 12px 20px calc(12px + env(safe-area-inset-bottom));
  z-index: 50;
  display:none; opacity:0;
  transform: translateY(100%);
  transition: opacity .3s ease, transform .3s ease;
  pointer-events:none;
}
@media (max-width: 699px){
  .sticky-cta{ display:block; }
  body{ padding-bottom: 80px; }
}
.sticky-cta.is-visible{ opacity:1; transform:translateY(0); pointer-events:auto; }
.sticky-cta .btn-wa{ padding: 15px 20px; font-size: var(--fs-md); }

/* ===== FOOTER ===== */
footer{ text-align:center; padding: 34px 0 28px; border-top: 1px solid var(--card-border); }
.footer-brand{ justify-content:center; margin-bottom: 18px; }
.footer-address{ font-style: normal; }
.footer-address p{ font-size: var(--fs-sm); line-height:1.65; margin-bottom:0; }
.footer-landmark{ color: var(--text-muted); margin-top: 4px; }
.footer-maps{
  display:inline-flex; align-items:center; gap:6px;
  margin-top: 16px; font-size: var(--fs-sm); font-weight:600;
  color: var(--accent); text-decoration:none;
}
.footer-maps:hover{ text-decoration: underline; }
.footer-maps svg{ width:15px; height:15px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.footer-hours{ margin-top: 18px; font-size: var(--fs-xs); line-height:1.7; color: var(--text-muted); }
.footer-links{
  margin-top: 22px;
  display:flex; justify-content:center; align-items:center; gap:10px;
  font-size: var(--fs-xs);
}
.footer-links a{ color: var(--text-secondary); text-decoration: underline; text-underline-offset: 3px; }
.footer-links span{ color: var(--text-muted); }

/* ===== RESPONSIVE ===== */
@media (max-width: 400px){
  .btn-wa{ font-size: var(--fs-md); padding: 17px 20px; gap: 8px; }
  .wa-icon{ width: 20px; height: 20px; }
}
@media (max-width: 365px){
  .btn-wa{ font-size: 13px; padding: 16px 16px; gap: 7px; }
  .wa-icon{ width: 18px; height: 18px; }
}

@media (min-width: 700px){
  /* Skala huruf dinaikkan untuk layar besar. Mobile tidak berubah. */
  :root{
    --fs-xs: 13.5px;
    --fs-sm: 15.5px;
    --fs-md: 17.5px;
    --fs-base: 19px;
    --fs-lg: 22px;
    --fs-xl: 24px;
  }
  section{ padding: 72px 0; }
  /* Slider hampir selebar layar, disisakan margin di kiri dan kanan.
     Padding dalamnya menggeser kartu pertama sampai sejajar kolom teks. */
  :root{ --slider-inset: min(48px, max(24px, calc((100% - var(--max-w)) / 2 + 24px))); }
  .ruangan-slider-wrap, .bukti-slider-wrap{
    margin-left: var(--slider-inset);
    margin-right: var(--slider-inset);
    max-width: none;
    position: relative;
    /* sama persis dengan padding kiri slider di bawah */
    --slider-pad: max(0px, calc(50% - var(--max-w) / 2 + 24px));
  }
  /* Fade tepi: gradien overlay, bukan mask-image.
     Tidak membuat compositing layer, jadi tidak menambah beban saat digeser.
     Warnanya mengikuti --bg karena kedua section slider berlatar dasar. */
  .ruangan-slider-wrap::before, .ruangan-slider-wrap::after,
  .bukti-slider-wrap::before, .bukti-slider-wrap::after{
    content: '';
    position: absolute;
    top: 0; bottom: 22px;
    width: 56px;
    pointer-events: none;
    z-index: 2;
  }
  .ruangan-slider-wrap::before, .bukti-slider-wrap::before{
    left: 0;
    width: min(56px, var(--slider-pad));
    background: linear-gradient(to right, var(--bg), transparent);
  }
  .ruangan-slider-wrap::after, .bukti-slider-wrap::after{
    right: 0;
    background: linear-gradient(to left, var(--bg), transparent);
  }
  .slider-btn{
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    margin-top: 20px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease, opacity .15s ease;
  }
  .slider-btn:hover{ border-color: var(--accent); color: var(--accent); }
  .slider-btn:disabled{ opacity: .3; cursor: default; }
  .slider-btn:disabled:hover{ border-color: var(--card-border); color: var(--text-secondary); }
  .slider-btn svg{
    width: 16px; height: 16px;
    fill: none; stroke: currentColor;
    stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
  }
  .ruangan-slider, .bukti-slider{
    padding-left: max(0px, calc(50% - var(--max-w) / 2 + 24px));
    padding-right: 0;
    scroll-padding-left: max(0px, calc(50% - var(--max-w) / 2 + 24px));
  }
  .gejala, .solusi, .proses, .faq{ padding-top: 88px; padding-bottom: 88px; }
  .hero{ padding: 48px 0 60px; }
  p{ line-height: 1.72; }
  .btn-wa{
    display: flex;
    width: fit-content;
    margin-left: auto; margin-right: auto;
    padding: 19px 40px;
  }
  .sticky-cta .btn-wa{ width:100%; }
  .marquee-item{ width: 260px; }
  .bukti-item{ width: min(46%, 340px); }
  /* Kartu solusi kembali bertumpuk ke bawah, visual pindah ke sisi kiri. */
  .solusi-list{
    display: flex; flex-direction: column; gap: 12px;
    overflow: visible; overflow-y: visible;
    margin: 0; padding: 0;
    scroll-snap-type: none;
  }
  .solusi-item{
    width: auto;
    display: flex; gap: 20px; align-items: flex-start;
  }
  .solusi-fig{ flex: 0 0 220px; margin-bottom: 0; }
  .solusi-body{ flex: 1; }
  .solusi-dots{ display: none; }
  .ruangan-item{ width: min(46%, 320px); }
}
@media (min-width: 1024px){
  .gejala-list li{ padding: 17px 20px; }
  .solusi-item{ padding: 20px; }
  .riwayat{ padding: 22px; gap: 15px; }
  .solusi-fig{ flex: 0 0 250px; margin-bottom: 0; }
}

@media (min-width: 1080px){
  section{ padding: 92px 0; }
  .gejala, .solusi, .proses, .faq{ padding-top: 108px; padding-bottom: 108px; }
  .bukti-item{ width: 300px; }
  .ruangan-item{ width: 300px; }
}