/* Seksyen "Kenali Mushaf Al-Hafiz".
   Asas (tanpa JS / reduced motion): poster + senarai kad biasa.
   .js + motion dibenarkan: pentas sticky, frame dilukis pada canvas ikut scroll. */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Latar gelap sepadan dengan studio render (lantai hijau tua) */
.mushaf {
  background: #0d1a15;
}
.mushaf__canvas,
.mushaf__rail {
  display: none;
}
.mushaf__poster {
  width: 100%;
  height: auto;
}
.mushaf__cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
  gap: var(--s-4);
  width: min(100% - 2 * var(--gutter), var(--max));
  margin: 0 auto;
  padding-block: var(--s-12);
}

/* Kad */
.card {
  position: relative;
  padding: var(--s-6);
  background: rgb(255 255 255 / 0.94);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.card h3 {
  font-size: var(--text-xl);
}
.card p {
  margin-top: var(--s-2);
  color: var(--ink-soft);
}
.card .eyebrow {
  margin: 0 0 var(--s-2);
}
.card .btn {
  margin-top: var(--s-4);
}
.card__n {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: var(--s-3);
  border-radius: 50%;
  background: var(--green-800);
  color: var(--brass-300);
  font: 600 var(--text-sm) / 1 var(--font-body);
}
.card--intro h3,
.card--hero h1 {
  font-size: var(--text-2xl);
}
.card__lede {
  margin-top: var(--s-3);
}
.card__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}
.card__cta .btn {
  margin-top: 0;
}
.card__cue {
  display: none;
}

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: var(--s-4) 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
}
.swatches li {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-1) var(--s-3) var(--s-1) var(--s-1);
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--line);
  transition: box-shadow 0.2s, background 0.2s;
}
.swatches li::before {
  content: "";
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--c);
  box-shadow: inset 0 0 0 1px rgb(0 0 0 / 0.15);
}
.swatches li.is-on {
  background: var(--mineral-100);
  box-shadow: inset 0 0 0 2px var(--green-800);
}

/* ---------- Mod scroll ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .mushaf__track {
    height: var(--track-h, 1300vh);
  }
  .js .mushaf__stage {
    /* Header melekat di atas: pentas bermula di bawahnya supaya bahagian bawah tak terpotong */
    position: sticky;
    top: var(--header-h, 0px);
    height: calc(100vh - var(--header-h, 0px));
    height: calc(100svh - var(--header-h, 0px));
    overflow: hidden;
  }
  .js .mushaf__canvas,
  .js .mushaf__poster {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .js .mushaf__canvas {
    display: block;
  }
  .js .mushaf.is-drawing .mushaf__poster {
    visibility: hidden;
  }

  .js .mushaf__cards {
    position: absolute;
    inset: 0;
    display: block;
    width: auto;
    padding: 0;
    pointer-events: none;
  }
  .js .card {
    position: absolute;
    left: var(--gutter);
    bottom: clamp(1.5rem, 8vh, 5rem);
    width: min(24rem, calc(100% - 2 * var(--gutter)));
    opacity: 0;
    transform: translateY(1rem);
    /* Kad lama hilang serta-merta supaya tak bertindih bila scroll laju; hanya kad baru fade masuk */
    transition: none;
  }
  .js .card.is-active {
    transition: opacity 0.35s var(--ease-out), transform 0.45s var(--ease-out);
  }
  .js .card[data-side="right"] {
    left: auto;
    right: calc(var(--gutter) + 3.5rem);
  }
  .js .card--intro {
    width: min(30rem, calc(100% - 2 * var(--gutter)));
  }
  .js .card--hero {
    width: min(34rem, calc(100% - 2 * var(--gutter)));
  }
  .js .card.is-active,
  .js .mushaf:not(.is-ready) .card--hero {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  /* Pembukaan: tajuk terus atas latar gelap (tanpa kotak putih), mushaf di kanan */
  .js .card--hero {
    top: 50%;
    bottom: auto;
    left: max(var(--gutter), calc((100vw - var(--max)) / 2));
    width: min(36rem, 46vw);
    padding: 0;
    background: none;
    box-shadow: none;
    color: #f4efe2;
    transform: translateY(calc(-50% + 1rem));
  }
  .js .card--hero.is-active,
  .js .mushaf:not(.is-ready) .card--hero {
    transform: translateY(-50%);
  }
  .js .card--hero .eyebrow {
    color: var(--brass-300);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: var(--text-sm);
  }
  .js .card--hero h1 {
    font-size: var(--text-3xl);
    line-height: 1.05;
    color: #fff;
    text-wrap: balance;
  }
  .js .card--hero .card__lede {
    margin-top: var(--s-4);
    font-size: var(--text-lg);
    color: rgb(244 239 226 / 0.78);
  }
  /* Bukti sebagai satu baris teks (bukan deretan pil) */
  .js .card--hero .badges {
    gap: 0;
    margin-top: var(--s-4);
  }
  .js .card--hero .badges li {
    padding: 0;
    border-radius: 0;
    background: none;
    color: var(--brass-300);
    font-size: var(--text-sm);
    font-weight: 600;
  }
  .js .card--hero .badges li + li::before {
    content: "·";
    margin-inline: 0.6em;
    color: rgb(217 189 128 / 0.6);
  }
  .js .card--hero .btn--ghost {
    color: #f4efe2;
    box-shadow: inset 0 0 0 1px rgb(244 239 226 / 0.5);
    background: none;
  }
  .js .card--hero .btn--ghost:hover {
    background: rgb(255 255 255 / 0.08);
  }
  .js .card__cue {
    display: flex;
    align-items: center;
    gap: var(--s-2);
    margin-top: var(--s-8);
    font-size: var(--text-sm);
    color: rgb(244 239 226 / 0.55);
  }
  .js .card__cue::after {
    content: "";
    width: 1px;
    height: 2rem;
    background: linear-gradient(var(--brass-300), transparent);
  }
  /* Bayang kiri supaya tajuk terbaca; pudar bila mushaf mula dibuka */
  .js .mushaf__stage::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgb(8 6 4 / 0.82) 0%, rgb(8 6 4 / 0.45) 38%, transparent 62%);
    opacity: 0;
    transition: opacity 0.5s var(--ease-out);
    pointer-events: none;
  }
  .js .mushaf[data-chapter="hero"] .mushaf__stage::before,
  .js .mushaf:not(.is-ready) .mushaf__stage::before {
    opacity: 1;
  }
  .js .mushaf__cards,
  .js .mushaf__rail {
    z-index: 2;
  }
  /* Rel nombor hanya muncul selepas pembukaan */
  .js .mushaf__rail {
    transition: opacity 0.4s;
  }
  .js .mushaf[data-chapter="hero"] .mushaf__rail,
  .js .mushaf:not(.is-ready) .mushaf__rail {
    opacity: 0;
    pointer-events: none;
  }

  /* Rel bab: nombor seperti poster, sebelah kanan */
  .js .mushaf__rail {
    position: absolute;
    right: var(--gutter);
    top: 50%;
    translate: 0 -50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--s-1);
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: var(--text-sm);
    font-weight: 600;
    color: rgb(214 228 222 / 0.55);
  }
  .js .mushaf__rail li[data-for] {
    display: grid;
    place-items: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    transition: background 0.25s, color 0.25s;
  }
  .js .mushaf__rail li.is-on {
    background: var(--brass-300);
    color: var(--green-900);
  }
  .js .mushaf__rail li.is-done {
    color: #e6efeb;
  }
  /* Nama ciri di sebelah nombor aktif, supaya jelas maksud rel */
  .js .mushaf__rail li[data-for] {
    position: relative;
    cursor: pointer;
  }
  .js .mushaf__rail li[data-for]:hover {
    background: rgb(255 255 255 / 0.12);
    color: #fff;
  }
  /* Label juga muncul semasa hover/fokus, supaya pengguna tahu apa yang akan diklik */
  .js .mushaf__rail li[data-for]:is(:hover, :focus-visible)::before {
    content: attr(data-label);
    position: absolute;
    right: calc(100% + 0.6rem);
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgb(13 26 21 / 0.82);
    color: #f1ead8;
    font-size: var(--text-sm);
    font-weight: 600;
    white-space: nowrap;
  }
  .js .mushaf__rail li.is-on::before {
    content: attr(data-label);
    position: absolute;
    right: calc(100% + 0.6rem);
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgb(13 26 21 / 0.82);
    color: #f1ead8;
    font-size: var(--text-sm);
    font-weight: 600;
    white-space: nowrap;
    backdrop-filter: blur(6px);
  }
  .js .mushaf__rail-group {
    margin-block: var(--s-2) var(--s-1);
    writing-mode: vertical-rl;
    rotate: 180deg;
    font-weight: 400;
    letter-spacing: 0.04em;
  }

  /* Bar kemajuan nipis (telefon) */
  .js .mushaf__stage::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: var(--teal-600);
    transform-origin: left;
    transform: scaleX(var(--p, 0));
  }
}

@media (prefers-reduced-motion: no-preference) and (max-width: 47.99rem) {
  .js .mushaf__track {
    height: var(--track-h-mobile, 1100vh);
  }
  .js .mushaf__rail {
    display: none;
  }
  .js .card,
  .js .card[data-side="right"] {
    left: var(--gutter);
    right: auto;
    bottom: var(--s-6);
    padding: var(--s-4) var(--s-6);
  }
  .js .card h3 {
    font-size: var(--text-lg);
  }
  .js .card--intro h3 {
    font-size: var(--text-xl);
  }
  /* Telefon: mushaf di atas, tajuk di bawah atas bayang dari bawah */
  .js .card--hero,
  .js .card--hero.is-active,
  .js .mushaf:not(.is-ready) .card--hero {
    top: auto;
    bottom: var(--s-6);
    left: var(--gutter);
    width: calc(100% - 2 * var(--gutter));
    padding: 0;
    transform: none;
  }
  .js .card--hero h1 {
    font-size: clamp(1.9rem, 8.5vw, 2.4rem);
  }
  .js .card--hero .card__lede {
    display: none; /* ruang telefon terhad: tajuk + bukti + butang sahaja */
  }
  .js .card--hero .badges {
    margin-top: var(--s-3);
  }
  .js .card--hero .card__cta {
    margin-top: var(--s-4);
  }
  .js .card--hero .card__cta .btn {
    flex: 1;
    justify-content: center;
  }
  .js .card__cue {
    display: none;
  }
  .js .mushaf__stage::before {
    background: linear-gradient(0deg, rgb(8 6 4 / 0.92) 0%, rgb(8 6 4 / 0.7) 42%, transparent 66%);
  }
}

/* Lencana kelayakan dalam kad hero */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin: var(--s-4) 0 0;
  padding: 0;
  list-style: none;
}
.badges li {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--green-800);
  color: var(--brass-300);
  font-size: var(--text-sm);
  font-weight: 600;
}

/* Nombor ciri di sebelah tajuk (sepadan dengan rel), bukan jubin bulat di atas tajuk */
.card:has(.card__n) {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--s-3);
  align-items: baseline;
}
.card:has(.card__n) > :not(.card__n) {
  grid-column: 2;
}
.card__n {
  grid-row: 1;
  width: auto;
  height: auto;
  margin: 0;
  background: none;
  color: var(--brass-500);
  font-size: var(--text-xl);
}