/* REKA STUDIO V2 — asymmetric studio layout */

:root {
  --brand-rail: 94px;
  --chapter-rail: 318px;
  --pointer-x: 0;
  --pointer-y: 0;
}

/* Pengalaman pembaca menggunakan Bahasa Malaysia sahaja. */
#tab-en,
#tab-v2-en,
#prompt-en,
#v2-prompt-en { display: none !important; }

/* The original top bar becomes a vertical identity rail.
   Chapter navigation moves to the right; reading stays in the centre. */
.app {
  display: grid;
  grid-template-columns: var(--brand-rail) minmax(0, 1fr) var(--chapter-rail);
  grid-template-rows: minmax(0, 1fr);
  height: 100dvh;
}

.topbar {
  grid-column: 1;
  grid-row: 1;
  width: var(--brand-rail);
  height: 100dvh;
  padding: 22px 14px;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  border: 0;
  border-right: 1px solid var(--signal-line);
  background:
    linear-gradient(180deg, rgba(255, 90, 31, .08), transparent 24%),
    color-mix(in srgb, var(--bg-sideaabar) 94%, transparent);
}

.topbar::before {
  content: '';
  position: absolute;
  top: 20px;
  width: 1px;
  height: 86px;
  background: linear-gradient(var(--accent), transparent);
  box-shadow: 0 0 14px var(--accent);
}

.topbar::after {
  left: auto;
  right: -1px;
  top: 0;
  bottom: 0;
  width: 1px;
  height: auto;
  background: linear-gradient(transparent, var(--accent) 48%, transparent);
}

.topbar > div:first-child {
  flex-direction: column;
  gap: 18px !important;
  min-height: 0;
}

.topbar-brand {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  min-height: 230px;
  justify-content: flex-end;
  font-size: 14px;
  letter-spacing: .16em;
}

.topbar-brand .brand-dot {
  flex: 0 0 auto;
}

.reading-context { display: none; }
.topbar-right { flex-direction: column; gap: 9px; }
.topbar-right .version-badge { writing-mode: vertical-rl; padding: 9px 7px; }
.topbar-right .hideaa-mobile { display: none; }
.hamburger { display: none !important; }

.sideaabar {
  grid-column: 3;
  grid-row: 1;
  display: block;
  padding: 24px 18px 72px;
  border: 0;
  border-left: 1px solid var(--signal-line);
  background:
    radial-gradient(circle at 100% 0, rgba(255, 90, 31, .09), transparent 25%),
    var(--bg-sideaabar);
}

.sideaabar::before {
  content: 'KANDUNGAN / 31 MODUL';
  display: block;
  padding: 0 4px 17px;
  font: 700 9px/1 'Space Mono', monospace;
  letter-spacing: .16em;
  color: var(--accent);
}

.sidebar-search-wrap { top: -24px; padding-top: 24px; }
.sideaabar-section-label { margin-top: 29px; }
.nav-item { padding: 10px 11px; }

.content-area {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  min-width: 0;
  background:
    linear-gradient(90deg, rgba(255, 90, 31, .024) 1px, transparent 1px),
    linear-gradient(rgba(255, 90, 31, .02) 1px, transparent 1px);
  background-size: 72px 72px;
}

.content-area::before {
  content: '';
  position: fixed;
  z-index: 20;
  left: calc(var(--brand-rail) + 18px);
  top: 22px;
  bottom: 22px;
  width: 1px;
  pointer-events: none;
  background: linear-gradient(transparent, rgba(255, 90, 31, .24) 30%, rgba(255, 90, 31, .24) 70%, transparent);
}

/* Hero composition */
#page-cover.hero {
  grid-template-columns: minmax(430px, .92fr) minmax(450px, 1.08fr);
  min-height: 100%;
  padding: clamp(54px, 7vw, 108px) clamp(34px, 5vw, 84px);
}

#page-cover.hero::before {
  content: 'REKA / STRATEGI / JANA';
  right: 28px;
}

.hero-title {
  font-size: clamp(4.9rem, 8vw, 9.7rem);
  letter-spacing: -.07em;
}

.hero-copy { max-width: 620px; }
.hero-byline { letter-spacing: .12em; text-transform: uppercase; }

.hero-visual {
  --pointer-x: 0;
  --pointer-y: 0;
  inset: 0 0 0 45%;
}

.hero-deck {
  transition: transform .28s cubic-bezier(.2, .7, .2, 1), border-color .25s ease, filter .25s ease;
}

.deck-main {
  width: clamp(230px, 23vw, 338px);
  left: 43%;
  top: 12%;
  aspect-ratio: .63;
  overflow: hidden;
  animation: none !important;
  transform:
    translateX(-20%)
    rotateY(calc(var(--pointer-x) * 4deg))
    rotateX(calc(var(--pointer-y) * -3deg))
    translate(calc(var(--pointer-x) * 8px), calc(var(--pointer-y) * 6px));
  border-color: rgba(255, 103, 46, .72);
  box-shadow: 0 34px 90px rgba(0, 0, 0, .7), 0 0 40px rgba(255, 90, 31, .08);
}

.deck-main::before {
  z-index: 5;
  top: 0;
}

.deck-main::after {
  z-index: 5;
  left: 0;
  right: 0;
  top: -18%;
  bottom: auto;
  height: 24%;
  background: linear-gradient(180deg, transparent, rgba(255, 103, 46, .12), rgba(255, 103, 46, .48), transparent);
  box-shadow: none;
  animation: mascot-scan 4.8s ease-in-out infinite;
}

.mascot-image {
  position: absolute;
  z-index: 1;
  inset: 30px 0 0;
  width: 100%;
  height: calc(100% - 30px);
  object-fit: cover;
  object-position: center 24%;
  filter: saturate(.93) contrast(1.04);
  mask-image: linear-gradient(to bottom, #000 0 79%, transparent 98%);
  animation: mascot-breathe 5.2s ease-in-out infinite;
}

.deck-main .deck-index,
.deck-main .deck-copy,
.deck-main .deck-status { z-index: 6; }

.deck-main .deck-copy {
  position: absolute;
  left: 18px;
  bottom: 20px;
  text-shadow: 0 3px 18px #000;
}

.deck-main .deck-status { bottom: 22px; }
.deck-left { left: 7%; top: 34%; }
.deck-right { right: 1%; top: 36%; }
.deck-left:hover, .deck-right:hover { border-color: var(--accent); filter: brightness(1.12); }
.deck-glyph { font-size: clamp(2rem, 4vw, 4.6rem); }

/* Reading pages: numbered editorial sections, wider grids and stronger hierarchy. */
.content-page .page-inner {
  max-width: 1120px;
  padding: clamp(190px, 23vh, 246px) clamp(34px, 6vw, 96px) 120px;
  counter-reset: studio-section;
}

.content-page .page-inner::before {
  left: clamp(34px, 6vw, 96px) !important;
  right: clamp(34px, 6vw, 96px) !important;
}

.content-page .page-inner::after { left: auto !important; right: clamp(68px, 11vw, 160px); }
.content-page h1 { max-width: 900px; }
.content-page h2 {
  counter-increment: studio-section;
  position: relative;
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  margin-top: 84px;
  padding-top: 22px;
  border-top: 1px solid var(--signal-line);
}

.content-page h2::before {
  content: '0' counter(studio-section);
  font: 700 10px/1.3 'Space Mono', monospace;
  letter-spacing: .12em;
  color: var(--accent);
}

.content-page h2::first-letter { color: inherit; }
.content-page .usecase-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.content-page .faq { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
.content-page .faq-a { grid-column: 1 / -1; }
.content-page .table-wrap { margin: 28px 0; }
.content-page th { background: rgba(255, 90, 31, .075); }
.content-page .page-nav { margin-top: 100px; }

.hero-intro,
.callout,
.compare-card,
.usecase-card,
.faq-item,
.flow,
.table-wrap,
.code-block,
.template-section-body {
  position: relative;
}

.hero-intro::before,
.usecase-card::before,
.compare-card::before {
  content: '';
  position: absolute;
  top: 9px;
  right: 9px;
  width: 18px;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.page-nav-btn { min-width: 188px; justify-content: center; }

@keyframes mascot-breathe {
  0%, 100% { transform: scale(1.005) translateY(0); }
  50% { transform: scale(1.025) translateY(-4px); }
}

@keyframes mascot-scan {
  0%, 14% { transform: translateY(0); opacity: 0; }
  28% { opacity: .8; }
  72% { opacity: .5; }
  86%, 100% { transform: translateY(430%); opacity: 0; }
}

@media (max-width: 1280px) {
  :root { --chapter-rail: 278px; --brand-rail: 82px; }
  #page-cover.hero { grid-template-columns: 1fr; padding-right: 34%; }
  .hero-visual { left: 43%; opacity: .82; }
  .deck-main { width: clamp(210px, 25vw, 300px); }
}

@media (max-width: 900px) {
  :root { --brand-rail: 100%; --chapter-rail: 0px; }
  .app { grid-template-columns: 1fr; grid-template-rows: 72px minmax(0, 1fr); }
  .topbar {
    grid-column: 1;
    grid-row: 1;
    width: 100%;
    height: 72px;
    padding: 0 18px;
    flex-direction: row;
    border-right: 0;
    border-bottom: 1px solid var(--signal-line);
  }
  .topbar::before { display: none; }
  .topbar::after { top: auto; right: 0; bottom: -1px; width: 100%; height: 1px; }
  .topbar > div:first-child { flex-direction: row; }
  .topbar-brand { writing-mode: horizontal-tb; transform: none; min-height: 0; font-size: 13px; }
  .topbar-right { flex-direction: row; }
  .topbar-right .version-badge { writing-mode: horizontal-tb; }
  .hamburger { display: flex !important; }
  .sideaabar { display: none; }
  .content-area { grid-column: 1; grid-row: 2; }
  .content-area::before { display: none; }
  #page-cover.hero { padding-right: 32%; }
  .drawer { display: block; }
}

@media (max-width: 768px) {
  #page-cover.hero.active { padding-top: 42px; }
  .hero-title { font-size: clamp(4.2rem, 20vw, 6.8rem); }
  .hero-visual { height: 510px; }
  .deck-main { width: 52%; left: 40%; top: 5%; }
  .deck-left { left: -2%; top: 32%; }
  .deck-right { right: -4%; top: 34%; }
  .content-page .page-inner { padding-left: 20px; padding-right: 20px; }
  .content-page .page-inner::before { left: 14px !important; right: 14px !important; }
  .content-page h2 { grid-template-columns: 38px minmax(0, 1fr); gap: 8px; }
  .content-page .usecase-grid, .content-page .faq { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .version-badge { display: none; }
  .hero-deck { min-width: 118px; }
  .deck-main { min-width: 190px; left: 35%; }
  .deck-copy { font-size: .82rem; }
  .page-nav { gap: 10px; align-items: stretch; }
  .page-nav-btn { min-width: 0; padding: 10px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .mascot-image, .deck-main::after { animation: none !important; }
}

/*
  NAVIGASI MODUL ASAL
  Kekalkan corak klik asal: bar atas + senarai 31 modul di sebelah kiri.
  Hanya bahasa visual REKA STUDIO digunakan semula pada struktur ini.
*/
@media (min-width: 901px) {
  :root {
    --brand-rail: 300px;
    --chapter-rail: 0px;
  }

  .app {
    grid-template-columns: 300px minmax(0, 1fr);
    grid-template-rows: 76px minmax(0, 1fr);
  }

  .topbar {
    grid-column: 1 / -1;
    grid-row: 1;
    width: 100%;
    height: 76px;
    padding: 0 28px;
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid var(--signal-line);
  }

  .topbar::before { display: none; }

  .topbar::after {
    left: 300px;
    right: 0;
    top: auto;
    bottom: -1px;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent 58%);
  }

  .topbar > div:first-child {
    flex-direction: row;
    gap: 10px !important;
  }

  .topbar-brand {
    writing-mode: horizontal-tb;
    transform: none;
    min-height: 0;
    justify-content: flex-start;
    font-size: 15px;
  }

  .reading-context { display: flex; }
  .topbar-right { flex-direction: row; }
  .topbar-right .version-badge { writing-mode: horizontal-tb; padding: 7px 11px; }
  .topbar-right .hideaa-mobile { display: inline-flex; }

  .sideaabar {
    grid-column: 1;
    grid-row: 2;
    padding: 20px 16px 64px;
    border-left: 0;
    border-right: 1px solid var(--signal-line);
  }

  .sideaabar::before {
    padding: 0 8px 16px;
  }

  .sidebar-search-wrap {
    top: -20px;
    padding-top: 20px;
  }

  .content-area {
    grid-column: 2;
    grid-row: 2;
  }

  .content-area::before { display: none; }
}

/* Logo utama bar atas — dipaparkan pada semua halaman. */
.topbar-brand.topbar-brand-logo {
  writing-mode: horizontal-tb;
  transform: none;
  min-height: 0;
  line-height: 0;
}

.topbar-brand .topbar-logo {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(124, 106, 255, .32);
  box-shadow: 0 0 18px rgba(124, 106, 255, .18);
}

@media (min-width: 901px) {
  .topbar-brand .topbar-logo {
    width: 54px;
    height: 54px;
  }
}

@media (max-width: 440px) {
  .topbar-brand .topbar-logo {
    width: 40px;
    height: 40px;
    border-radius: 7px;
  }
}

/* Paparan muka depan telefon — figura disusun seperti kad dalam aplikasi mudah alih. */
@media (max-width: 768px) {
  #page-cover.hero.active {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 24px;
    min-height: auto;
    padding: 30px 18px 34px !important;
    overflow: visible;
  }

  #page-cover .hero-content {
    width: 100%;
    max-width: none;
  }

  #page-cover .hero-title {
    font-size: clamp(3.7rem, 19vw, 6rem);
  }

  #page-cover .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 30px;
  }

  #page-cover .hero-actions .cta {
    min-width: 0;
    justify-content: center;
    padding-inline: 14px;
    text-align: center;
  }

  #page-cover .stats {
    gap: 10px;
  }

  #page-cover .hero-visual {
    position: relative;
    inset: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto auto;
    gap: 12px;
    width: 100%;
    height: auto;
    min-height: 0;
    margin: 0;
    padding: 0;
    opacity: 1;
    overflow: visible;
  }

  #page-cover .hero-visual::before,
  #page-cover .hero-visual::after,
  #page-cover .signal-orbit {
    display: none;
  }

  #page-cover .hero-deck {
    position: relative;
    inset: auto;
    width: 100%;
    min-width: 0;
    height: auto;
    aspect-ratio: 4 / 5;
    transform: none !important;
    animation: none !important;
  }

  #page-cover .deck-main {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
    width: min(78vw, 340px);
    aspect-ratio: .72;
  }

  #page-cover .deck-left {
    grid-column: 1;
    grid-row: 2;
  }

  #page-cover .deck-right {
    grid-column: 2;
    grid-row: 2;
  }

  #page-cover .mascot-image {
    inset: 30px 0 0;
    width: 100%;
    height: calc(100% - 30px);
    object-fit: cover;
    object-position: center 22%;
  }

  #page-cover .deck-glyph {
    font-size: clamp(2.2rem, 12vw, 4rem);
  }

  #page-cover .deck-copy {
    font-size: clamp(.9rem, 4.2vw, 1.25rem);
  }
}

@media (max-width: 440px) {
  #page-cover.hero.active {
    gap: 20px;
    padding-inline: 14px !important;
  }

  #page-cover .hero-actions {
    grid-template-columns: 1fr;
  }

  #page-cover .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  #page-cover .stat-card {
    min-width: 0;
    padding: 14px 10px;
  }

  #page-cover .stat-number {
    font-size: 1.7rem;
  }

  #page-cover .stat-label {
    font-size: 9px;
  }

  #page-cover .hero-visual {
    gap: 9px;
  }

  #page-cover .deck-main {
    width: min(84vw, 310px);
    min-width: 0;
  }

  #page-cover .hero-deck:not(.deck-main) {
    aspect-ratio: 1 / 1.18;
  }

  #page-cover .deck-index {
    font-size: 6px;
  }
}