/* ============================================================
   GEMS Group — Design Tokens
   ============================================================ */
:root {
  /* Brand */
  --gems-red:   #C00518;
  --gems-blue:  #06069E;
  --gems-black: #0E191F;
  --gems-white: #FFFFFF;

  /* Neutrals */
  --paper:     #FBFBF9;        /* warm, subtle off-white */
  --paper-2:   #F4F2EC;        /* hairline section divider tone */
  --ink:       #0E191F;
  --ink-60:    rgba(14, 25, 31, 0.85);
  --ink-40:    rgba(14, 25, 31, 0.4);
  --ink-20:    rgba(14, 25, 31, 0.2);
  --ink-10:    rgba(14, 25, 31, 0.10);
  --rule:      rgba(14, 25, 31, 0.14);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-display-sans: 'Plus Jakarta Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'Roboto Mono', ui-monospace, monospace;
  --font-display: var(--font-sans);  /* swapped to serif via tweak */

  /* Sizing */
  --container: 1320px;
  --gutter: 24px;
  --col: 12;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --t-fast: 220ms;
  --t-med:  420ms;
  --t-slow: 720ms;
}

/* Serif mode (set on body via tweak) */
body.serif-mode {
  --font-display: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ============================================================
   Page load / transition — kill the raw-prerender flash, then
   reveal the styled app smoothly. (Option A core + Option B VT)
   `js-cloak` is set by page-transition.js, so no-JS crawlers
   keep the visible prerendered content.
   ============================================================ */

/* Option B — native smooth cross-page transition (Chrome/Edge/Safari;
   silently no-op on browsers without cross-document View Transitions) */
@view-transition { navigation: auto; }

/* Cloak the app until React mounts → the raw SEO block never shows */
html.js-cloak #root {
  opacity: 0;
  transform: translateY(8px);
}
html.js-cloak.app-ready #root {
  opacity: 1;
  transform: none;
  transition: opacity var(--t-slow, 720ms) var(--ease),
              transform var(--t-slow, 720ms) var(--ease);
}

/* Branded loader — logomark on paper, pure CSS (shows at first paint,
   no DOM injection). ::before = paper backdrop, ::after = pulsing mark. */
html.js-cloak::before,
html.js-cloak::after {
  position: fixed;
  inset: 0;
  z-index: 9998;
  content: "";
  transition: opacity 520ms var(--ease);
}
html.js-cloak::before { background: var(--paper); }
html.js-cloak::after {
  z-index: 9999;
  background: url("assets/symbol-blue.svg") center center / 56px 56px no-repeat;
  animation: gems-loader-pulse 1500ms var(--ease) infinite;
}
html.js-cloak.app-ready::before,
html.js-cloak.app-ready::after {
  opacity: 0;
  pointer-events: none;
  animation: none;
}
@keyframes gems-loader-pulse {
  0%, 100% { opacity: 0.32; transform: scale(0.94); }
  50%      { opacity: 0.95; transform: scale(1); }
}

/* Accessibility: no motion → instant reveal, no pulse, no VT */
@media (prefers-reduced-motion: reduce) {
  @view-transition { navigation: none; }
  html.js-cloak #root { transform: none; }
  html.js-cloak.app-ready #root { transition: opacity 200ms linear; transform: none; }
  html.js-cloak::after { animation: none; opacity: 0.9; transform: none; }
  html.js-cloak::before,
  html.js-cloak::after { transition: opacity 200ms linear; }
}
body.no-anim.js-cloak::after { animation: none; opacity: 0.9; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
::selection { background: var(--gems-blue); color: var(--gems-white); }

/* ============================================================
   Type system
   ============================================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-60);
}
.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.display {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.02;
  text-wrap: balance;
}
body.serif-mode .display {
  font-weight: 500;
  letter-spacing: -0.01em;
  font-style: italic;
}
.h1 { font-size: clamp(48px, 7vw, 112px); }
.h2 { font-size: clamp(36px, 4.4vw, 72px); }
.h3 { font-size: clamp(24px, 2.2vw, 36px); }
.lede {
  font-size: clamp(18px, 1.4vw, 22px);
  line-height: 1.45;
  color: var(--ink);
  max-width: 56ch;
  text-wrap: pretty;
}
.body { font-size: 16px; line-height: 1.65; color: var(--ink-60); }
.body p { margin: 0 0 1em; }

/* ============================================================
   Layout primitives
   ============================================================ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}
.rule { height: 1px; background: var(--rule); border: 0; }
.rule-strong { height: 1px; background: var(--ink); border: 0; }

/* ============================================================
   Page chrome
   ============================================================ */
.page {
  min-height: 100vh;
}

/* Variant switcher (bottom floating, doesn't fight the nav) */
.variant-switch {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: inline-flex;
  background: rgba(14,25,31,0.92);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  padding: 4px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 12px 40px rgba(0,0,0,0.24);
  white-space: nowrap;
}
.variant-switch button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  padding: 9px 18px;
  border-radius: 999px;
  transition: all var(--t-fast) var(--ease);
  white-space: nowrap;
}
.variant-switch button.active {
  background: var(--gems-white);
  color: var(--gems-black);
}

/* ============================================================
   Reveal animations
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition: opacity var(--t-slow) var(--ease),
              transform var(--t-slow) var(--ease),
              filter var(--t-slow) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, filter;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(22px);
  filter: blur(5px);
  transition: opacity 700ms var(--ease),
              transform 700ms var(--ease),
              filter 700ms var(--ease);
  will-change: opacity, transform, filter;
}
.reveal-stagger.in > * {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
.reveal-stagger.in > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: 90ms; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: 180ms; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: 270ms; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: 360ms; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: 450ms; }

body.no-anim .reveal,
body.no-anim .reveal-stagger > * {
  opacity: 1 !important;
  transform: none !important;
}

/* ============================================================
   Reusable bits
   ============================================================ */
/* Generic image placeholder with brand stripe motif */
.placeholder {
  position: relative;
  overflow: hidden;
  background: var(--paper-2);
  color: var(--ink-60);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 14px,
      rgba(14,25,31,0.05) 14px,
      rgba(14,25,31,0.05) 15px
    );
}
.placeholder--dark {
  background: var(--gems-black);
  color: rgba(255,255,255,0.5);
}
.placeholder--dark::before {
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 14px,
      rgba(255,255,255,0.07) 14px,
      rgba(255,255,255,0.07) 15px
    );
}
.placeholder--blue {
  background: var(--gems-blue);
  color: rgba(255,255,255,0.7);
}
.placeholder--blue::before {
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent 0px,
      transparent 14px,
      rgba(255,255,255,0.10) 14px,
      rgba(255,255,255,0.10) 15px
    );
}
.placeholder__label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  z-index: 2;
}
.placeholder--photo { background: var(--gems-black); }
.placeholder--photo .placeholder__label,
.placeholder--photo .placeholder__tag {
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: all var(--t-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { background: var(--gems-red); color: white; border-color: var(--gems-red); }
.btn--solid { background: var(--gems-black); color: var(--paper); border-color: var(--gems-black); }
.btn--solid:hover { background: var(--gems-red); border-color: var(--gems-red); }
.btn--red { background: var(--gems-red); color: white; border-color: var(--gems-red); }
.btn--red:hover { background: var(--gems-black); border-color: var(--gems-black); }
.btn__arrow {
  width: 16px; height: 1px; background: currentColor; position: relative;
}
.btn__arrow::after {
  content: ""; position: absolute; right: 0; top: 50%;
  width: 6px; height: 6px; border-right: 1px solid currentColor; border-top: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

/* Tag pill */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--ink-20);
  color: var(--ink-60);
}

/* Inputs */
.input {
  width: 100%;
  font: inherit;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--ink-20);
  padding: 12px 0;
  color: var(--ink);
  outline: none;
  transition: border-color var(--t-fast) var(--ease);
}
.input::placeholder { color: var(--ink-60); }
.input:focus { border-color: var(--ink); }

/* Brand stripe accent (vertical) */
.brand-stripes {
  display: inline-flex;
  gap: 3px;
  align-items: flex-end;
}
.brand-stripes span {
  display: block;
  width: 2px;
  background: currentColor;
}

/* ============================================================
   Footer (shared)
   ============================================================ */
.footer {
  background:
    radial-gradient(ellipse 900px 480px at 50% 108%,
      rgba(6, 6, 158, 0.55) 0%,
      rgba(6, 6, 158, 0.28) 32%,
      rgba(6, 6, 158, 0.10) 58%,
      transparent 78%),
    var(--gems-black);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 32px;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}
.footer a { transition: color 220ms var(--ease), border-color 220ms var(--ease); }
.footer a:hover { color: white; }

/* Top editorial masthead */
.footer-masthead {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding-bottom: 48px;
  margin-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer-logo-link { display: inline-flex; }
.footer-logo-link img { height: 52px; display: block; }
.footer-tagline {
  display: inline-flex; align-items: center; gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
  color: rgba(255,255,255,0.78);
  font-weight: 600;
}
.footer-rule {
  width: 32px; height: 2px; background: var(--gems-red);
  display: inline-block;
}
.footer-totop {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  font-weight: 600;
  padding: 10px 16px;
  border: 1px solid rgba(255,255,255,0.18);
  background: transparent;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  transition: all 220ms var(--ease);
}
.footer-totop:hover {
  background: var(--gems-red);
  border-color: var(--gems-red);
  color: white;
}
.footer-totop span { display: inline-block; transition: transform 220ms var(--ease); }
.footer-totop:hover span { transform: translateY(-3px); }

/* Brand column */
.footer-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gems-red);
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-fullname {
  font-family: var(--font-display-sans);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: white;
  margin-bottom: 16px;
}
.footer-blurb {
  color: rgba(255,255,255,0.62);
  max-width: 340px;
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
}

.footer .grid-12 { row-gap: 40px; }
.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.95);
  font-weight: 700;
  margin: 0 0 24px;
  display: inline-flex; align-items: center; gap: 12px;
}
.footer h4::before {
  content: ""; width: 18px; height: 2px; background: var(--gems-red);
  display: inline-block; flex-shrink: 0;
}
.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { padding: 5px 0; }

/* Bilingual domain list */
.footer-domains li {
  display: flex; flex-direction: column;
  gap: 2px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-domains li:last-child { border-bottom: 0; }
.footer-domains .dom {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gems-red);
  font-weight: 700;
}
.footer-domains a { color: rgba(255,255,255,0.78); font-size: 14px; }
.footer-domains a:hover { color: white; }

/* Social links */
.footer-social {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  font-weight: 600;
  display: inline-flex; align-items: center; gap: 8px;
}
.footer-social span {
  display: inline-block; font-size: 13px;
  transition: transform 220ms var(--ease);
}
.footer-social:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.4);
  color: white;
}
.footer-social:hover span { transform: translate(2px, -2px); }

.footer .legal {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.14);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.62);
  flex-wrap: wrap;
  gap: 16px;
}
.footer .legal .legal-links { display: inline-flex; gap: 12px; align-items: center; }
.footer .legal .legal-links a { color: rgba(255,255,255,0.55); }
.footer .legal .legal-links a:hover { color: white; }
.footer .legal .legal-links .dot { opacity: 0.4; }

/* ============================================================
   RESPONSIVE — Tablet & Mobile
   Breakpoints: 1024 (tablet large), 768 (tablet), 480 (mobile)
   ============================================================ */

/* Nav burger button — hidden on desktop, visible <= 1024 */
.nav-burger {
  display: none;
  width: 36px; height: 36px;
  position: relative;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-burger span {
  position: absolute; left: 6px; right: 6px;
  height: 1.5px;
  background: currentColor;
  transition: transform 280ms var(--ease), opacity 220ms var(--ease), top 280ms var(--ease);
}
.nav-burger span:nth-child(1) { top: 11px; }
.nav-burger span:nth-child(2) { top: 17px; }
.nav-burger span:nth-child(3) { top: 23px; }
.nav.menu-open .nav-burger span:nth-child(1) { top: 17px; transform: rotate(45deg); }
.nav.menu-open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.menu-open .nav-burger span:nth-child(3) { top: 17px; transform: rotate(-45deg); }

/* Tablet — 1024 and below */
@media (max-width: 1024px) {
  .container { padding-left: 24px; padding-right: 24px; }

  /* Nav: hide inline menu, show burger; CTA stays */
  .nav-items {
    position: fixed;
    top: 76px; left: 0; right: 0; bottom: 0;
    background: var(--paper, #FBFBF9);
    backdrop-filter: blur(16px);
    flex-direction: column !important;
    gap: 0 !important;
    padding: 32px 24px;
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 320ms var(--ease), opacity 240ms var(--ease);
    z-index: 99;
  }
  .nav.menu-open .nav-items {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-items a {
    font-size: 28px !important;
    font-weight: 500 !important;
    padding: 18px 0 !important;
    border-bottom: 1px solid var(--ink-10);
    color: var(--ink) !important;
    opacity: 1 !important;
    letter-spacing: -0.01em;
    text-transform: none;
  }
  .nav-burger { display: block; }
  .nav-cta { display: none; }
  .nav-lang { font-size: 11px !important; gap: 4px !important; }

  /* Footer: 12-col → flexible */
  .footer-masthead { gap: 20px; }
  .footer-masthead .footer-totop { padding: 8px 12px; font-size: 11px; }
  .footer .grid-12 > * { grid-column: span 6 !important; }
  .footer .legal { margin-top: 56px; }
}

/* Tablet small — 768 and below */
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }

  /* Footer: single column */
  .footer { padding: 56px 0 28px; }
  .footer-masthead {
    grid-template-columns: 1fr !important;
    text-align: left;
    gap: 16px;
    padding-bottom: 28px;
    margin-bottom: 36px;
  }
  .footer-masthead .footer-logo-link img { height: 40px; }
  .footer-tagline { font-size: 11px; letter-spacing: 0.22em; }
  .footer-totop { align-self: flex-start; }
  .footer .grid-12 { gap: 28px; }
  .footer .grid-12 > * { grid-column: span 12 !important; }
  .footer h4 { margin-bottom: 16px; }
  .footer .legal {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 40px;
  }
  .footer .legal .legal-links {
    flex-wrap: wrap;
    gap: 8px 10px;
  }

  /* Buttons keep a 44px+ tap target on mobile */
  .btn { font-size: 11px; padding: 15px 20px; }

  /* Body sizing */
  body { font-size: 15px; }
}

/* Mobile — 480 and below */
@media (max-width: 480px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .nav-bar { height: 64px !important; }
  .nav-bar img { height: 36px !important; }
  .nav-items { top: 64px !important; padding: 24px 16px; }
  .nav-items a { font-size: 22px !important; padding: 14px 0 !important; }
  .nav-lang { display: none !important; }

  .footer .footer-blurb { max-width: none; }
}

/* Mobile menu fixes — robust overlay */
@media (max-width: 1024px) {
  .nav { z-index: 100; }
  .nav-items {
    z-index: 105 !important;
    height: calc(100vh - 76px);
    height: calc(100dvh - 76px);
  }
  .nav.menu-open {
    background: rgba(251,251,249,0.98) !important;
    backdrop-filter: blur(12px) !important;
  }
}
@media (max-width: 480px) {
  .nav-items { height: calc(100vh - 64px); height: calc(100dvh - 64px); }
}

/* ============================================================
   Verify badge — nội dung placeholder cần client xác nhận
   ============================================================ */
.verify { position: relative; }
.verify > .verify-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8A6100;
  background: #FFF3D6;
  border: 1px solid #E3C36B;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
  white-space: nowrap;
  cursor: help;
  line-height: 1.6;
  font-style: normal;
}
.verify > .verify-badge::before { content: "△"; font-size: 8px; }
/* Verification labels removed sitewide — keep .verify wrapper inert. */
.verify-badge { display: none !important; }

/* ============================================================
   Homepage — 02 / Ba trụ cột (3 layout variants)
   ============================================================ */
/* --- Variant A: Columns --- */
.pillars-c .pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.pillars-c .pillar-card {
  background: var(--paper-2);
  border-top: 2px solid var(--gems-blue);
  padding: 40px 32px 36px;
  display: flex;
  flex-direction: column;
  min-height: 460px;
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}
.pillars-c .pillar-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--gems-red);
  box-shadow: 0 24px 48px rgba(14,25,31,0.08);
}
.pillars-c .pillar-num {
  font-family: var(--font-display);
  font-size: 72px;
  line-height: 1;
  font-weight: 500;
  color: var(--gems-blue);
  margin-bottom: 22px;
}
.pillars-c .pillar-card:hover .pillar-num { color: var(--gems-red); transition: color var(--t-med) var(--ease); }
.pillars-c .pillar-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink-60);
  margin-bottom: 12px;
}
.pillars-c .pillar-name {
  font-family: var(--font-display-sans);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 6px;
  color: var(--ink);
}
.pillars-c .pillar-name-vi {
  font-size: 13px;
  color: var(--ink-60);
  margin-bottom: 20px;
}
.pillars-c .pillar-aud {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-60);
  margin: 0 0 24px;
}
.pillars-c .pillar-lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
  border-left: 2px solid var(--gems-red);
  padding-left: 16px;
  margin: auto 0 26px;
}
.pillars-c .pillar-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.pillars-c .pillar-link .arrow { transition: transform var(--t-fast) var(--ease); }
.pillars-c .pillar-card:hover .pillar-link .arrow { transform: translateX(6px); }

/* --- Variant B: Ledger --- */
.pillars-c .pillars-ledger { border-top: 1px solid var(--rule); }
.pillars-c .pillar-row {
  display: grid;
  grid-template-columns: 120px 1.1fr 1fr 48px;
  gap: 32px;
  align-items: center;
  padding: 44px 0;
  border-bottom: 1px solid var(--rule);
  transition: padding var(--t-med) var(--ease);
}
.pillars-c .pillar-row:hover { padding-left: 12px; }
.pillars-c .pillar-row .pr-num {
  font-family: var(--font-display);
  font-size: 80px;
  line-height: 1;
  font-weight: 500;
  color: var(--ink-20);
  transition: color var(--t-med) var(--ease);
}
.pillars-c .pillar-row:hover .pr-num { color: var(--gems-red); }
.pillars-c .pillar-row .pr-name {
  font-family: var(--font-display-sans);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 6px 0 4px;
  color: var(--ink);
}
.pillars-c .pillar-row .pr-vi { font-size: 13px; color: var(--ink-60); }
.pillars-c .pillar-row .pr-aud { font-size: 14px; line-height: 1.65; color: var(--ink-60); margin: 0 0 6px; }
.pillars-c .pillar-row .pr-aud-en {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-60);
}
.pillars-c .pillar-row .pr-arrow {
  font-size: 22px;
  color: var(--ink-60);
  transition: transform var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
  text-align: right;
}
.pillars-c .pillar-row:hover .pr-arrow { transform: translateX(6px); color: var(--gems-red); }

/* --- Variant C: Visual --- */
.pillars-c .pillars-visual {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.pillars-c .pillar-vcard {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: white;
}
.pillars-c .pillar-vcard > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 900ms var(--ease);
}
.pillars-c .pillar-vcard:hover > img { transform: scale(1.05); }
.pillars-c .pv-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14,25,31,0.18) 0%, rgba(14,25,31,0.42) 45%, rgba(14,25,31,0.88) 100%);
}
.pillars-c .pv-body { position: relative; z-index: 2; padding: 32px 28px; }
.pillars-c .pv-num {
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  font-weight: 500;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.92);
}
.pillars-c .pv-body .pillar-code { color: rgba(255,255,255,0.7); }
.pillars-c .pv-body h3 {
  font-family: var(--font-display-sans);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  color: white;
}
.pillars-c .pv-body p { font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.78); margin: 0 0 20px; }
.pillars-c .pv-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  border-bottom: 1px solid var(--gems-red);
  padding-bottom: 3px;
}

/* --- Shared foot --- */
.pillars-c .pillars-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.pillars-c .pillars-foot-note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-60);
  max-width: 52ch;
  margin: 0;
}

/* Showcase — 3 architecture statements */
.opt-c .showcase-pillars.three { grid-template-columns: repeat(3, 1fr); }
.opt-c .showcase-pillar .p-en {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-top: auto;
  padding-top: 16px;
}

@media (max-width: 1024px) {
  .pillars-c .pillars-grid,
  .pillars-c .pillars-visual { grid-template-columns: 1fr; }
  .pillars-c .pillar-card { min-height: 0; }
  .pillars-c .pillar-vcard { min-height: 420px; }
  .pillars-c .pillar-row {
    grid-template-columns: 72px 1fr 32px;
    gap: 20px;
  }
  .pillars-c .pillar-row .pr-num { font-size: 52px; }
  .pillars-c .pillar-row .pr-aud-cell { grid-column: 2; }
  .opt-c .showcase-pillars.three { grid-template-columns: 1fr !important; }
}