/* ==========================================================================
   BIS v3 — "Future-Ready" creative direction
   Apple-elegance × futuristic SaaS. Dark hero, glass, gradients, motion.
   Vanilla CSS/JS. All motion gated on prefers-reduced-motion.
   ========================================================================== */

:root {
  --v3-bg: #05070f;
  --v3-bg-soft: #0a0e1c;
  --v3-ink: #eef2f9;
  --v3-ink-dim: rgba(238, 242, 249, 0.62);
  --v3-accent: #2dd4bf;
  --v3-accent-2: #7dd3fc;
  --v3-violet: #a78bfa;
  --v3-glass: rgba(255, 255, 255, 0.055);
  --v3-glass-border: rgba(255, 255, 255, 0.12);
  --v3-radius: 20px;
}

/* ---------- Page shell (dark, full-bleed sections) ---------- */
.v3-main { background: var(--v3-bg); color: var(--v3-ink); }
.v3-main .section { padding: 96px 0; position: relative; }
@media (max-width: 767px) { .v3-main .section { padding: 64px 0; } }
.v3-main h2, .v3-main h3 { color: var(--v3-ink); }
.v3-main p { color: var(--v3-ink-dim); }

/* ---------- Scroll progress bar ---------- */
.v3-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--v3-accent), var(--v3-accent-2), var(--v3-violet));
  z-index: 120;
  transition: width 80ms linear;
}

/* ---------- Sticky nav transform on scroll ---------- */
.v3-page .site-header {
  background: rgba(5, 7, 15, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, padding 0.3s ease;
}
.v3-page .site-header.is-scrolled {
  background: rgba(5, 7, 15, 0.88);
  border-bottom-color: var(--v3-glass-border);
}
.v3-page .site-header a, .v3-page .site-nav a { color: var(--v3-ink); }
.v3-page .site-header .btn--primary {
  background: linear-gradient(92deg, var(--v3-accent), var(--v3-accent-2));
  color: #05201c;
  border: none;
  font-weight: 700;
}
/* Logo on dark v3 header: double size + white plate for legibility */
.v3-page .site-header__logo img {
  height: 80px;
  width: auto;
  background: #ffffff;
  padding: 10px 16px;
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
/* hamburger + mobile nav on dark */
.v3-page .site-header__inner { min-height: 96px; }
.v3-page .nav-toggle { color: var(--v3-ink); border-color: var(--v3-glass-border); background: var(--v3-glass); }
.v3-page .mobile-nav { background: rgba(5,7,15,0.97); border-color: var(--v3-glass-border); }
.v3-page .mobile-nav a { color: var(--v3-ink); }

/* ---------- HERO: full-screen, animated gradient mesh ---------- */
.v3-hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--v3-bg);
  padding: 120px 0 80px;
}
/* animated mesh blobs */
.v3-hero .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  pointer-events: none;
}
.v3-hero .blob--1 {
  width: 640px; height: 640px;
  background: radial-gradient(circle, rgba(45,212,191,0.5), transparent 70%);
  top: -180px; right: -120px;
}
.v3-hero .blob--2 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(125,211,252,0.35), transparent 70%);
  bottom: -200px; left: -140px;
}
.v3-hero .blob--3 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(167,139,250,0.3), transparent 70%);
  top: 30%; left: 42%;
}
@media (prefers-reduced-motion: no-preference) {
  .v3-hero .blob--1 { animation: v3-drift-1 18s ease-in-out infinite alternate; }
  .v3-hero .blob--2 { animation: v3-drift-2 22s ease-in-out infinite alternate; }
  .v3-hero .blob--3 { animation: v3-drift-3 26s ease-in-out infinite alternate; }
  @keyframes v3-drift-1 { to { transform: translate(-60px, 50px) scale(1.12); } }
  @keyframes v3-drift-2 { to { transform: translate(70px, -40px) scale(1.08); } }
  @keyframes v3-drift-3 { to { transform: translate(-40px, -60px) scale(1.15); } }
}
/* grid texture */
.v3-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 75%);
  pointer-events: none;
}
.v3-hero .container { position: relative; z-index: 2; }

.v3-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--v3-glass-border);
  background: var(--v3-glass);
  backdrop-filter: blur(8px);
  color: var(--v3-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.v3-eyebrow .pulse-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--v3-accent);
  box-shadow: 0 0 10px var(--v3-accent);
}
@media (prefers-reduced-motion: no-preference) {
  .v3-eyebrow .pulse-dot { animation: v3-pulse 2.2s ease-in-out infinite; }
  @keyframes v3-pulse { 50% { opacity: 0.35; transform: scale(0.8); } }
}

/* headline: oversized, gradient word */
.v3-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--v3-ink);
  margin: 26px 0 0;
  max-width: 15ch;
}
.v3-headline .grad {
  background: linear-gradient(92deg, var(--v3-accent) 0%, var(--v3-accent-2) 55%, var(--v3-violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.v3-sub {
  margin-top: 22px;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-weight: 400;
  color: var(--v3-ink-dim);
  max-width: 52ch;
  line-height: 1.65;
}
.v3-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.v3-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.v3-btn--primary {
  background: linear-gradient(92deg, var(--v3-accent), var(--v3-accent-2));
  color: #05201c;
  box-shadow: 0 8px 32px rgba(45,212,191,0.35);
}
.v3-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 44px rgba(45,212,191,0.5); }
.v3-btn--ghost {
  border: 1px solid var(--v3-glass-border);
  background: var(--v3-glass);
  color: var(--v3-ink);
  backdrop-filter: blur(8px);
}
.v3-btn--ghost:hover { transform: translateY(-2px); background: rgba(255,255,255,0.1); }
.v3-btn .arrow { transition: transform 0.2s ease; }
.v3-btn:hover .arrow { transform: translateX(4px); }

/* hero stat strip */
.v3-hero-stats {
  display: flex; flex-wrap: wrap; gap: 40px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--v3-glass-border);
}
.v3-hero-stats .stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  background: linear-gradient(92deg, var(--v3-ink), var(--v3-accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.v3-hero-stats .stat span {
  font-size: 0.8rem;
  color: var(--v3-ink-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

/* scroll cue */
.v3-scroll-cue {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--v3-ink-dim);
  font-size: 0.68rem; letter-spacing: 0.25em; text-transform: uppercase;
}
.v3-scroll-cue .line {
  width: 1px; height: 36px;
  background: linear-gradient(180deg, var(--v3-accent), transparent);
}
@media (prefers-reduced-motion: no-preference) {
  .v3-scroll-cue .line { animation: v3-cue 1.8s ease-in-out infinite; transform-origin: top; }
  @keyframes v3-cue { 0%,100% { transform: scaleY(0.4); opacity: 0.4; } 50% { transform: scaleY(1); opacity: 1; } }
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
  }
  .reveal.is-visible { opacity: 1; transform: none; }
  .reveal[data-delay="1"] { transition-delay: 0.09s; }
  .reveal[data-delay="2"] { transition-delay: 0.18s; }
  .reveal[data-delay="3"] { transition-delay: 0.27s; }
}

/* ---------- Section headers ---------- */
.v3-kicker {
  display: block;
  color: var(--v3-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.v3-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--v3-ink);
  margin: 0;
}
.v3-lede { margin-top: 16px; max-width: 56ch; color: var(--v3-ink-dim); font-size: 1.05rem; }
.v3-head { max-width: 760px; margin-bottom: 56px; }
.v3-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.v3-head--center .v3-lede { margin-left: auto; margin-right: auto; }

/* ---------- Interactive solution tiles ---------- */
.v3-tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 1023px) { .v3-tiles { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 639px)  { .v3-tiles { grid-template-columns: 1fr; } }
.v3-tile {
  position: relative;
  padding: 30px 26px 28px;
  border-radius: var(--v3-radius);
  background: var(--v3-glass);
  border: 1px solid var(--v3-glass-border);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.16,1,0.3,1), border-color 0.28s ease, box-shadow 0.28s ease;
}
.v3-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px 200px at var(--mx, 50%) var(--my, 0%), rgba(45,212,191,0.16), transparent 65%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.v3-tile:hover { transform: translateY(-6px); border-color: rgba(45,212,191,0.45); box-shadow: 0 20px 50px rgba(0,0,0,0.45); }
.v3-tile:hover::before { opacity: 1; }
.v3-tile .tile-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(45,212,191,0.2), rgba(125,211,252,0.12));
  border: 1px solid rgba(45,212,191,0.35);
  margin-bottom: 20px;
  color: var(--v3-accent);
}
.v3-tile .tile-icon svg { width: 26px; height: 26px; }
.v3-tile h3 { font-size: 1.15rem; font-weight: 700; margin: 0 0 8px; color: var(--v3-ink); }
.v3-tile p { margin: 0; font-size: 0.92rem; line-height: 1.6; color: var(--v3-ink-dim); }
.v3-tile .tile-tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--v3-accent-2);
}

/* ---------- Glass panel for diagrams ---------- */
.v3-panel {
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--v3-glass-border);
  backdrop-filter: blur(12px);
  padding: 40px 28px;
  box-shadow: 0 24px 70px rgba(0,0,0,0.4);
}
@media (max-width: 767px) { .v3-panel { padding: 26px 16px; } }
/* diagram text on dark: retint via CSS filter is fragile — we ship dark-theme
   SVGs inline instead (see markup). Fallback: ensure svg text inherits. */
.v3-panel svg text { font-family: var(--font-display); }

/* ---------- Principles orbit (CSS, no SVG needed) ---------- */
.v3-orbit-wrap { position: relative; max-width: 680px; margin: 0 auto; }
.v3-orbit {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 560px;
  margin: 0 auto;
}
.v3-orbit .core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 34%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, #16325e, #0b1038 70%);
  border: 1px solid rgba(125,211,252,0.4);
  box-shadow: 0 0 60px rgba(45,212,191,0.25), inset 0 0 30px rgba(45,212,191,0.12);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: 2;
}
.v3-orbit .core b { font-family: var(--font-display); font-size: clamp(1.4rem, 3vw, 2rem); color: #fff; letter-spacing: 0.02em; }
.v3-orbit .core span { font-size: 0.68rem; color: var(--v3-accent); letter-spacing: 0.18em; text-transform: uppercase; margin-top: 4px; font-weight: 700; }
.v3-orbit .ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,0.14);
}
.v3-orbit .ring--2 { inset: 14%; border-style: solid; border-color: rgba(255,255,255,0.07); }
@media (prefers-reduced-motion: no-preference) {
  .v3-orbit .ring { animation: v3-spin-slow 60s linear infinite; }
  .v3-orbit .ring--2 { animation: v3-spin-slow 44s linear infinite reverse; }
  @keyframes v3-spin-slow { to { transform: rotate(360deg); } }
}
.v3-orbit .sat {
  position: absolute;
  width: 118px;
  padding: 12px 8px;
  border-radius: 14px;
  background: rgba(10, 14, 28, 0.85);
  border: 1px solid var(--v3-glass-border);
  backdrop-filter: blur(6px);
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--v3-ink);
  transform: translate(-50%, -50%);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
  z-index: 3;
}
.v3-orbit .sat small { display: block; font-weight: 500; font-size: 0.66rem; color: var(--v3-ink-dim); margin-top: 3px; letter-spacing: 0.02em; }
.v3-orbit .sat:hover { border-color: var(--v3-accent); box-shadow: 0 0 28px rgba(45,212,191,0.3); transform: translate(-50%, -50%) scale(1.06); }
.v3-orbit .sat--1 { top: 6%;  left: 50%; }
.v3-orbit .sat--2 { top: 32%; left: 96%; }
.v3-orbit .sat--3 { top: 82%; left: 78%; }
.v3-orbit .sat--4 { top: 82%; left: 22%; }
.v3-orbit .sat--5 { top: 32%; left: 4%; }
@media (max-width: 639px) {
  .v3-orbit { display: none; }
  .v3-orbit-fallback { display: block !important; }
}
.v3-orbit-fallback { display: none; }

/* ---------- Flow stack (operating model, dark theme) ---------- */
.v3-flow { max-width: 720px; margin: 0 auto; display: grid; gap: 0; }
.v3-flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  align-items: start;
  padding: 22px 0;
}
.v3-flow-step .num {
  width: 64px; height: 64px;
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 800; font-size: 1.2rem;
  background: var(--v3-glass);
  border: 1px solid var(--v3-glass-border);
  color: var(--v3-accent-2);
}
.v3-flow-step.is-accent .num {
  background: linear-gradient(135deg, rgba(45,212,191,0.25), rgba(125,211,252,0.12));
  border-color: rgba(45,212,191,0.5);
  color: #fff;
  box-shadow: 0 0 30px rgba(45,212,191,0.25);
}
.v3-flow-step h3 { margin: 6px 0 6px; font-size: 1.25rem; font-weight: 700; color: var(--v3-ink); }
.v3-flow-step p { margin: 0; font-size: 0.95rem; color: var(--v3-ink-dim); }
.v3-flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 32px; top: 92px; bottom: -6px;
  width: 1.5px;
  background: linear-gradient(180deg, rgba(45,212,191,0.5), rgba(45,212,191,0.05));
}
@media (prefers-reduced-motion: no-preference) {
  .v3-flow-step:not(:last-child)::after {
    background: linear-gradient(180deg, var(--v3-accent), transparent);
    background-size: 100% 200%;
    animation: v3-flow-down 2.4s ease-in-out infinite;
  }
  @keyframes v3-flow-down { 0% { background-position: 0 -100%; } 100% { background-position: 0 100%; } }
}
@media (max-width: 639px) {
  .v3-flow-step { grid-template-columns: 48px 1fr; gap: 14px; }
  .v3-flow-step .num { width: 48px; height: 48px; border-radius: 14px; font-size: 1rem; }
  .v3-flow-step:not(:last-child)::after { left: 24px; top: 74px; }
}

/* ---------- Marquee strip ---------- */
.v3-marquee {
  overflow: hidden;
  border-top: 1px solid var(--v3-glass-border);
  border-bottom: 1px solid var(--v3-glass-border);
  padding: 18px 0;
  background: rgba(255,255,255,0.02);
}
.v3-marquee .track {
  display: flex;
  gap: 56px;
  width: max-content;
  color: var(--v3-ink-dim);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.v3-marquee .track span { display: inline-flex; align-items: center; gap: 56px; }
.v3-marquee .track i { color: var(--v3-accent); font-style: normal; }
@media (prefers-reduced-motion: no-preference) {
  .v3-marquee .track { animation: v3-scroll-x 28s linear infinite; }
  @keyframes v3-scroll-x { to { transform: translateX(-50%); } }
}

/* ---------- Principles carousel ---------- */
.v3-carousel { position: relative; max-width: 860px; margin: 0 auto; }
.v3-carousel .viewport { overflow: hidden; border-radius: var(--v3-radius); }
.v3-carousel .slides { display: flex; transition: transform 0.55s cubic-bezier(0.16,1,0.3,1); }
.v3-slide {
  flex: 0 0 100%;
  padding: 44px 40px;
  background: var(--v3-glass);
  border: 1px solid var(--v3-glass-border);
  backdrop-filter: blur(10px);
  border-radius: var(--v3-radius);
}
.v3-slide .q-mark {
  font-family: var(--font-display);
  font-size: 3.4rem;
  line-height: 1;
  background: linear-gradient(92deg, var(--v3-accent), var(--v3-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.v3-slide h3 { font-size: 1.5rem; font-weight: 700; margin: 10px 0 12px; color: var(--v3-ink); }
.v3-slide p { margin: 0; font-size: 1rem; line-height: 1.7; color: var(--v3-ink-dim); }
.v3-carousel .controls { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 24px; }
.v3-carousel button {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--v3-glass-border);
  background: var(--v3-glass);
  color: var(--v3-ink);
  cursor: pointer;
  font-size: 1.1rem;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.v3-carousel button:hover { border-color: var(--v3-accent); background: rgba(45,212,191,0.12); transform: scale(1.06); }
.v3-carousel .dots { display: flex; gap: 8px; }
.v3-carousel .dots button {
  width: 9px; height: 9px; padding: 0;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.2);
  transition: background 0.25s, transform 0.25s;
}
.v3-carousel .dots button[aria-selected="true"] { background: var(--v3-accent); transform: scale(1.35); }

/* ---------- CTA band v3 ---------- */
.v3-cta {
  position: relative;
  border-radius: 28px;
  padding: 72px 40px;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(45,212,191,0.22), transparent 65%),
    radial-gradient(600px 300px at 80% 100%, rgba(167,139,250,0.18), transparent 65%),
    var(--v3-bg-soft);
  border: 1px solid var(--v3-glass-border);
}
.v3-cta h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 800; letter-spacing: -0.02em; margin: 14px 0 14px; }
.v3-cta p { max-width: 56ch; margin: 0 auto; }

/* ---------- Floating quick-inquiry ---------- */
.v3-fab {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 110;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  background: linear-gradient(92deg, var(--v3-accent), var(--v3-accent-2));
  color: #05201c;
  font-weight: 800;
  font-size: 0.9rem;
  text-decoration: none;
  box-shadow: 0 12px 36px rgba(45,212,191,0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.v3-fab:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 18px 48px rgba(45,212,191,0.55); }
@media (max-width: 639px) {
  .v3-fab { right: 14px; bottom: 14px; padding: 12px 18px; font-size: 0.82rem; }
}

/* ---------- Animated flow connectors (used in v3 matrix SVG) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .v2-flow {
    stroke-dasharray: 5 9;
    animation: v3-dash 2.2s linear infinite;
  }
  @keyframes v3-dash { to { stroke-dashoffset: -28; } }
}

/* ---------- Mobile diagram stack, dark theme ---------- */
@media (max-width: 767px) {
  .v3-main .ds-node {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.25);
    box-shadow: none;
  }
  .v3-main .ds-title { color: var(--v3-ink); }
  .v3-main .ds-sub { color: var(--v3-ink-dim); }
  .v3-main .ds-node--accent { background: rgba(45,212,191,0.1); border-color: rgba(45,212,191,0.55); }
  .v3-main .ds-node--accent .ds-title { color: #5eead4; }
  .v3-main .ds-node--solid { background: linear-gradient(135deg, #16325e, #0b1038); border-color: rgba(125,211,252,0.4); }
  .v3-main .ds-node--solid .ds-title { color: #ffffff; }
  .v3-main .ds-node--solid .ds-sub { color: rgba(255,255,255,0.72); }
  .v3-main .diagram-stack li:not(:last-child)::before { background: rgba(255,255,255,0.35); }
  .v3-main .diagram-stack li:not(:last-child)::after { border-top-color: rgba(255,255,255,0.35); }
  .v3-main .ds-label { color: var(--v3-ink-dim); }
  .v3-main .ds-pill {
    border-color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.06);
    color: var(--v3-ink);
  }
}

/* ---------- Footer (dark) ---------- */
.v3-footer {
  background: #03050c;
  border-top: 1px solid var(--v3-glass-border);
  color: var(--v3-ink-dim);
  padding: 64px 0 32px;
}
.v3-footer p, .v3-footer li, .v3-footer .site-footer__bottom span {
  color: rgba(238, 242, 249, 0.72);
}
.v3-footer a { color: var(--v3-ink-dim); text-decoration: none; position: relative; transition: color 0.2s; }
.v3-footer a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: var(--v3-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.v3-footer a:hover { color: var(--v3-accent); }
.v3-footer a:hover::after { transform: scaleX(1); }
.v3-footer h4, .v3-footer .site-footer__heading { color: var(--v3-ink); font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; }
.v3-footer .brand { font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; color: var(--v3-ink); }