/* =====================================================================
   Chasy Office Furniture | one page
   Urutan isi file:
   1. Token (warna, font, ukuran)   5. Hero (banner)
   2. Reset & dasar                 6. Katalog & carousel
   3. Tombol                        7. Proses
   4. Navigation bar                8. Footer, WhatsApp melayang, lightbox
   ===================================================================== */

/* ---------- 1. Token: ubah warna di sini, berlaku ke seluruh halaman ---------- */
@font-face {
  font-family: "Manrope";
  src: url("/fonts/manrope-var.woff2") format("woff2");
  font-weight: 200 800;
  font-display: swap;
}

:root {
  --orange: #e09230;        /* Cokelat muda (dari brief) */
  --cream: #fbf9fa;         /* dari brief */
  --white: #ffffff;         /* dari brief */
  --brown: #432820;         /* Cokelat gelap: diambil dari tulisan "INTERIOR DAN FURNITURE" di banner */

  --brown-70: rgba(67, 40, 32, 0.72);   /* teks pendukung di latar terang */
  --brown-15: rgba(67, 40, 32, 0.15);   /* garis tipis di latar terang */
  --cream-70: rgba(251, 249, 250, 0.7); /* teks pendukung di latar gelap */
  --cream-15: rgba(251, 249, 250, 0.16);/* garis tipis di latar gelap */

  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, Consolas, "SFMono-Regular", Menlo, monospace;

  --nav-h: 76px;
  --gutter: clamp(16px, 4vw, 76px);
  --ease: cubic-bezier(0.7, 0, 0.2, 1);
}

/* ---------- 2. Reset & dasar ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); font-size: 1.0625rem; line-height: 1.6; color: var(--brown); background: var(--white); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ol, figure { margin: 0; }
ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

.wrap { width: 100%; padding-inline: var(--gutter); margin-inline: auto; max-width: 1920px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; top: 10px; z-index: 200; padding: 10px 16px; background: var(--brown); color: var(--cream); }
.skip:focus { left: 10px; }

/* Judul besar dengan huruf rapat, seperti referensi */
.display { font-weight: 700; letter-spacing: -0.065em; line-height: 0.95; text-wrap: balance; }

/* ---------- 3. Tombol ---------- */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 46px; padding: 10px 22px; border-radius: 999px;
  font-weight: 700; font-size: 0.95rem; letter-spacing: -0.01em; text-decoration: none; white-space: nowrap;
  transition: color 0.35s var(--ease);
}
.btn--orange { background: var(--orange); color: var(--brown); }
/* isi cokelat yang naik dari bawah saat hover */
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: var(--brown); transform: translateY(101%);
  transition: transform 0.45s var(--ease);
}
.btn:hover { color: var(--cream); }
.btn:hover::before { transform: translateY(0); }
.btn--pill { min-height: 66px; padding: 14px 30px; font-size: 1.125rem; }
.btn__arrow { width: 18px; height: 18px; transition: transform 0.35s var(--ease); }
.btn:hover .btn__arrow { transform: translate(3px, -3px); }

/* ---------- 4. Navigation bar ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h);
  background: transparent; /* transparan, sesuai brief */
  transition: background-color 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}
/* setelah halaman digulir: tetap tembus pandang, diberi efek kaca agar menu terbaca di atas foto & bagian gelap */
.nav.is-scrolled {
  background: rgba(251, 249, 250, 0.72);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  box-shadow: 0 1px 0 var(--brown-15);
}
.nav__inner { height: 100%; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; padding-inline: var(--gutter); max-width: 1920px; margin-inline: auto; }
.nav__logo img { height: 38px; width: auto; }
.nav__menu { display: flex; gap: clamp(24px, 3vw, 44px); }
.nav__right { justify-self: end; display: flex; align-items: center; gap: 12px; }
.nav__menu-cta, .nav__burger { display: none; }

.nav__link {
  position: relative; padding: 8px 2px;
  font-weight: 700; font-size: 1.0625rem; letter-spacing: -0.03em; text-decoration: none; color: var(--brown);
}
/* garis bawah yang tumbuh dari kiri */
.nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 2px; background: var(--orange);
  transform: scaleX(0); transform-origin: right; transition: transform 0.45s var(--ease);
}
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__link.is-active { color: var(--orange); }

/* Animasi hover: tiap huruf "berguling" ke atas bergantian (huruf dipecah oleh main.js) */
.roll { display: inline-flex; }
.roll__ch { display: inline-block; height: 1.25em; line-height: 1.25em; overflow: hidden; vertical-align: top; }
.roll__ch > span { display: block; transition: transform 0.5s var(--ease); transition-delay: calc(var(--i) * 24ms); }
.roll__ch > span + span { color: var(--orange); }
.nav__link:hover .roll__ch > span, .nav__link:focus-visible .roll__ch > span { transform: translateY(-100%); }

/* ---------- 5. Hero (banner) ---------- */
.hero { padding-top: var(--nav-h); background: var(--white); }
.hero__frame { position: relative; container-type: inline-size; max-width: 1920px; margin-inline: auto; }
.hero__img { width: 100%; height: auto; }
/* paragraf kecil banner, ditulis sebagai teks asli supaya tajam & terbaca Google */
.hero__desc {
  position: absolute; left: 51.4%; width: 43.7%; top: 87.3%;
  max-width: none; text-align: center; color: #3f3a3a;
  font-size: max(0.64cqw, 10px); line-height: 1.38; letter-spacing: 0;
}

/* ---------- 6. Katalog & carousel ---------- */
/* Tinggi foto mengikuti tinggi layar, jadi judul + foto + tombol geser muat dalam satu layar */
.katalog { --kat-h: clamp(200px, calc(100svh - 450px), 560px); padding-block: clamp(36px, 6vh, 72px); background: var(--white); overflow: hidden; }
.katalog__head { display: grid; gap: 8px; margin-bottom: clamp(20px, 3.5vh, 36px); }
.katalog__head h2 { font-size: clamp(2.6rem, 5vw, 5rem); }
.katalog__lead { font-size: clamp(1rem, 1.2vw, 1.2rem); color: var(--brown-70); max-width: 72ch; }

.carousel__track {
  display: flex; gap: clamp(14px, 1.6vw, 24px);
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory;
  padding-inline: var(--gutter); scroll-padding-inline: var(--gutter);
  scrollbar-width: none; cursor: grab;
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__track.is-dragging { cursor: grabbing; scroll-snap-type: none; scroll-behavior: auto; }
.carousel__track.is-dragging * { pointer-events: none; }

.slide { flex: 0 0 auto; width: min(calc(var(--kat-h) * 960 / 679), 86vw); scroll-snap-align: start; }
.slide__open { display: block; width: 100%; padding: 0; border: 0; background: var(--cream); cursor: zoom-in; overflow: hidden; border-radius: 6px; }
.slide__img {
  width: 100%; height: auto; aspect-ratio: 960 / 679; object-fit: cover;
  transform: scale(1.12); opacity: 0.001;
  transition: transform 1.3s cubic-bezier(0.2, 0.7, 0.1, 1), opacity 0.9s ease;
}
/* foto "mendarat" saat masuk layar, lalu sedikit membesar saat disorot */
.slide.is-in .slide__img { transform: scale(1); opacity: 1; }
.slide.is-in .slide__open:hover .slide__img { transform: scale(1.045); transition-duration: 0.8s; }
.slide__cap { display: flex; gap: 12px; align-items: baseline; padding-top: 10px; font-weight: 700; letter-spacing: -0.02em; }
.slide__num { font-family: var(--mono); font-size: 0.8rem; font-weight: 400; color: var(--orange); letter-spacing: 0; }
.no-js .slide__img { transform: none; opacity: 1; }

.carousel__bar { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(16px, 3vw, 40px); margin-top: clamp(14px, 2.5vh, 28px); }
.carousel__count { font-family: var(--mono); font-size: 0.9rem; color: var(--brown-70); min-width: 7ch; }
.carousel__count [data-current] { color: var(--brown); }
.carousel__progress { height: 2px; background: var(--brown-15); position: relative; overflow: hidden; }
.carousel__progress span { position: absolute; inset: 0; background: var(--orange); transform-origin: left; transform: scaleX(0); transition: transform 0.25s linear; }
.carousel__btns { display: flex; gap: 10px; }
.carousel__btn {
  width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%;
  border: 1.5px solid var(--brown); background: transparent; cursor: pointer;
  transition: background-color 0.3s, color 0.3s, transform 0.2s;
}
.carousel__btn svg { width: 22px; height: 22px; }
.carousel__btn:hover { background: var(--brown); color: var(--cream); }
.carousel__btn:active { transform: scale(0.94); }

/* ---------- 7. Proses (persis referensi, warna cokelat gelap) ---------- */
.proses { background: var(--brown); color: var(--cream); padding-block: clamp(80px, 9vw, 140px); }
.proses__grid { display: grid; grid-template-columns: 1fr; gap: 56px; }
.proses__title { font-size: clamp(2.6rem, 4.5vw, 5.6rem); line-height: 0.92; max-width: 8.4em; }
.proses__list { border-top: 1px solid var(--cream-15); }
.proses__item { display: grid; grid-template-columns: clamp(56px, 4.8vw, 90px) 1fr; padding-block: clamp(28px, 2.6vw, 44px); border-bottom: 1px solid var(--cream-15); }
.proses__num { font-family: var(--mono); font-size: 0.875rem; color: var(--orange); padding-top: 6px; }
.proses__item h3 { font-size: clamp(1.35rem, 1.6vw, 1.75rem); font-weight: 700; letter-spacing: -0.045em; line-height: 1.2; margin-bottom: 10px; }
.proses__item p { color: var(--cream-70); max-width: 22em; }

/* ---------- 8. Footer ---------- */
.footer { background: var(--cream); padding-top: clamp(80px, 9vw, 150px); }
.footer__grid { display: grid; gap: 36px; align-items: start; }
.footer__title { font-size: clamp(3rem, 5.3vw, 6.6rem); line-height: 0.92; max-width: 9em; }
.footer__side { display: grid; gap: 32px; justify-items: start; padding-top: 12px; }
.footer__side p { font-size: clamp(1.05rem, 1.15vw, 1.25rem); color: var(--brown-70); max-width: 20em; }
.footer__bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  margin-top: clamp(80px, 9vw, 150px); padding-block: 36px 40px; border-top: 1px solid var(--brown-15);
  font-size: 0.95rem; color: var(--brown-70);
}

/* ---------- WhatsApp melayang ---------- */
.wa-float { position: fixed; right: clamp(16px, 2vw, 28px); bottom: clamp(16px, 2vw, 28px); z-index: 90; display: flex; align-items: center; gap: 12px; text-decoration: none; }
.wa-float__btn {
  position: relative; isolation: isolate; overflow: hidden;
  width: 62px; height: 62px; display: grid; place-items: center; border-radius: 50%;
  background: var(--orange); color: var(--white); border: 2px solid var(--orange);
  box-shadow: 0 10px 28px rgba(67, 40, 32, 0.25);
  transition: color 0.45s var(--ease), transform 0.45s var(--ease);
}
.wa-float__btn svg { width: 30px; height: 30px; transition: transform 0.5s var(--ease); }
/* warna negatif: lingkaran putih mekar dari tengah, ikon berubah oranye */
.wa-float__btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: 50%;
  background: var(--white); transform: scale(0); transition: transform 0.5s var(--ease);
}
.wa-float:hover .wa-float__btn, .wa-float:focus-visible .wa-float__btn { color: var(--orange); transform: translateY(-3px); }
.wa-float:hover .wa-float__btn::before, .wa-float:focus-visible .wa-float__btn::before { transform: scale(1); }
.wa-float:hover .wa-float__btn svg { transform: rotate(-14deg) scale(1.06); }
.wa-float__label {
  padding: 9px 16px; border-radius: 999px; background: var(--white); color: var(--brown);
  font-weight: 700; font-size: 0.9rem; box-shadow: 0 8px 24px rgba(67, 40, 32, 0.16);
  opacity: 0; transform: translateX(12px); pointer-events: none;
  transition: opacity 0.35s, transform 0.45s var(--ease);
}
.wa-float:hover .wa-float__label, .wa-float:focus-visible .wa-float__label { opacity: 1; transform: none; }

/* ---------- Lightbox ---------- */
.lightbox { width: 100vw; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(30, 18, 14, 0.94); color: var(--cream); }
.lightbox[open] { display: grid; place-items: center; animation: lb-in 0.3s ease; }
.lightbox::backdrop { background: transparent; }
.lightbox__img { max-width: min(92vw, 1400px); max-height: 80dvh; width: auto; height: auto; object-fit: contain; border-radius: 4px; }
.lightbox__cap { position: absolute; left: 0; right: 0; bottom: 24px; text-align: center; font-weight: 700; max-width: none; }
.lightbox__close, .lightbox__nav {
  position: absolute; width: 52px; height: 52px; display: grid; place-items: center;
  border-radius: 50%; border: 1.5px solid var(--cream-70); background: transparent; color: var(--cream); cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}
.lightbox__close:hover, .lightbox__nav:hover { background: var(--cream); color: var(--brown); }
.lightbox__close svg, .lightbox__nav svg { width: 22px; height: 22px; }
.lightbox__close { top: 20px; right: 20px; }
.lightbox__nav { top: 50%; translate: 0 -50%; }
.lightbox__nav--prev { left: 20px; }
.lightbox__nav--next { right: 20px; }
@keyframes lb-in { from { opacity: 0; } }

/* ---------- Layar besar (PC) ---------- */
@media (min-width: 900px) {
  .carousel__bar { padding-right: calc(var(--gutter) + 72px); }
  .proses__grid { grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
  .footer__grid { grid-template-columns: 1.15fr 0.85fr; }
}

/* ---------- Ponsel & tablet kecil ---------- */
@media (max-width: 767px) {
  :root { --nav-h: 64px; }
  .nav__inner { grid-template-columns: auto 1fr; gap: 12px; }
  .nav__logo img { height: 30px; }
  .nav__cta { min-height: 40px; padding: 8px 14px; font-size: 0.85rem; }
  .nav__burger {
    display: grid; place-content: center; gap: 6px; width: 44px; height: 44px; padding: 0;
    border: 0; border-radius: 50%; background: transparent; cursor: pointer;
  }
  .nav__burger span { display: block; width: 22px; height: 2px; background: var(--brown); transition: transform 0.4s var(--ease); }
  .nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav__burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

  /* menu layar penuh */
  .nav__menu {
    position: fixed; inset: var(--nav-h) 0 0 0; z-index: -1;
    flex-direction: column; gap: 4px; padding: 32px var(--gutter);
    background: var(--cream);
    opacity: 0; visibility: hidden; transform: translateY(-12px);
    transition: opacity 0.35s, transform 0.45s var(--ease), visibility 0s 0.45s;
  }
  .nav__menu.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity 0.35s, transform 0.45s var(--ease); }
  .nav.menu-open { background: var(--cream); box-shadow: 0 1px 0 var(--brown-15); -webkit-backdrop-filter: none; backdrop-filter: none; }
  .nav__menu .nav__link { font-size: 2.6rem; letter-spacing: -0.06em; padding: 6px 0; align-self: flex-start; }
  .nav__menu .nav__link::after { bottom: 6px; }
  .nav__menu-cta { display: inline-flex; align-self: flex-start; margin-top: 24px; }

  /* banner versi ponsel: paragraf turun ke bawah gambar */
  .hero__desc { position: static; width: auto; padding: 18px var(--gutter) 40px; font-size: 0.95rem; line-height: 1.55; color: var(--brown-70); }

  .carousel__bar { grid-template-columns: auto 1fr auto; gap: 14px; }
  .carousel__btn { width: 46px; height: 46px; }

  .wa-float__label { display: none; }
  .wa-float__btn { width: 58px; height: 58px; }
}
@media (max-width: 379px) { .nav__cta { display: none; } }

/* Hormati pengaturan "kurangi gerakan" di perangkat pengunjung */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; transition-delay: 0s !important; }
  .slide__img { transform: none; opacity: 1; }
}