/* =========================================================
   NSLABS — Vision Section
   Modern, asymmetric, interactive
   ========================================================= */

:root {
  --ns-bg:        #0a0a0b;
  --ns-bg-2:      #111114;
  --ns-surface:   #131318;
  --ns-line:      rgba(255,255,255,0.08);
  --ns-line-2:    rgba(255,255,255,0.14);
  --ns-text:      #ededee;
  --ns-muted:     #8a8a92;
  --ns-dim:       #555560;
  --ns-accent:    #c8ff3e;     /* electric lime — distinctive */
  --ns-accent-2:  #ff5b2e;     /* warm pop for hover gradients */
  --ns-accent-3:  #6a7bff;
  --ns-radius:    22px;
  --ns-ease:      cubic-bezier(.22,.61,.36,1);
  --ns-font:      "Inter", "Helvetica Neue", system-ui, sans-serif;
  --ns-serif:     "Instrument Serif", "Times New Roman", serif;
  --ns-mono:      "JetBrains Mono", ui-monospace, monospace;
}

/* ---------- Section shell ---------- */
.ns-vision {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: radial-gradient(120% 80% at 80% 0%, #15151a 0%, var(--ns-bg) 55%) , var(--ns-bg);
  color: var(--ns-text);
  font-family: var(--ns-font);
  padding: clamp(80px, 10vw, 160px) 0 clamp(80px, 10vw, 140px);
  -webkit-font-smoothing: antialiased;
}

/* Background grid */
.ns-vision__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--ns-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ns-line) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  opacity: .55;
  z-index: 0;
}

/* Subtle noise */
.ns-vision__noise {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: .35;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 0;
}

/* Floating orbs */
.ns-vision__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .35;
  z-index: 0;
  pointer-events: none;
}
.ns-vision__orb--1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, var(--ns-accent) 0%, transparent 70%);
  top: -180px; right: -120px;
  animation: orbDrift 18s ease-in-out infinite alternate;
}
.ns-vision__orb--2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, var(--ns-accent-3) 0%, transparent 70%);
  bottom: -160px; left: -100px;
  opacity: .22;
  animation: orbDrift 22s ease-in-out -6s infinite alternate;
}
@keyframes orbDrift {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(40px,-30px,0) scale(1.08); }
}

/* Side index */
.ns-vision__index {
  position: absolute;
  top: 50%; left: 24px;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center;
  display: flex; align-items: center; gap: 14px;
  font-family: var(--ns-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--ns-dim);
  text-transform: uppercase;
  z-index: 2;
}
.ns-vision__index-line {
  width: 60px; height: 1px;
  background: var(--ns-line-2);
}

/* ---------- Container ---------- */
.ns-vision__container {
  position: relative;
  z-index: 1;
  width: min(1240px, 92%);
  margin: 0 auto;
}

/* ---------- Header ---------- */
.ns-vision__header {
  max-width: 920px;
  margin-bottom: clamp(60px, 8vw, 110px);
}

.ns-vision__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ns-mono);
  font-size: 12px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--ns-muted);
  padding: 8px 14px;
  border: 1px solid var(--ns-line);
  border-radius: 999px;
  background: rgba(255,255,255,0.02);
  backdrop-filter: blur(6px);
  margin-bottom: 32px;
}
.ns-vision__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ns-accent);
  box-shadow: 0 0 12px var(--ns-accent);
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: .5; transform: scale(.85); }
}
.ns-vision__eyebrow-meta { color: var(--ns-dim); }

.ns-vision__title {
  font-size: clamp(38px, 6.2vw, 86px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 0;
  color: var(--ns-text);
}
.ns-vision__title .line {
  display: block;
  overflow: hidden;
}
.ns-vision__title em {
  font-family: var(--ns-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ns-muted);
}
.ns-vision__highlight {
  position: relative;
  display: inline-block;
  color: var(--ns-accent);
}
.ns-vision__underline {
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  width: 100%; height: 12px;
  fill: none;
  stroke: var(--ns-accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 320;
  stroke-dashoffset: 320;
  animation: drawUnderline 1.4s var(--ns-ease) .8s forwards;
}
@keyframes drawUnderline {
  to { stroke-dashoffset: 0; }
}

.ns-vision__lede {
  margin: 28px 0 0;
  font-size: clamp(15px, 1.2vw, 17px);
  color: var(--ns-muted);
  max-width: 540px;
  line-height: 1.6;
}

/* ---------- Pillars Grid (asymmetric bento) ---------- */
.ns-vision__pillars {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(260px, auto);
  gap: 18px;
}
.pillar--lg     { grid-column: span 4; }
.pillar--accent { grid-column: span 2; }
.pillar         { grid-column: span 3; }
.pillar--wide   { grid-column: span 3; }

@media (max-width: 960px) {
  .ns-vision__pillars { grid-template-columns: repeat(2, 1fr); }
  .pillar, .pillar--lg, .pillar--accent, .pillar--wide { grid-column: span 2; }
}

/* Pillar card */
.pillar {
  position: relative;
  border: 1px solid var(--ns-line);
  border-radius: var(--ns-radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.025), rgba(255,255,255,0.01));
  overflow: hidden;
  cursor: default;
  transition: border-color .5s var(--ns-ease), transform .5s var(--ns-ease);
  opacity: 0;
  transform: translateY(40px);
}
.pillar.is-in {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(var(--pillar-index, 1) * 90ms);
}
.pillar:hover {
  border-color: var(--ns-line-2);
}
.pillar__inner {
  position: relative;
  z-index: 2;
  height: 100%;
  padding: clamp(24px, 2.4vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.pillar__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--ns-mono);
  font-size: 11px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--ns-dim);
}
.pillar__num {
  font-size: clamp(22px, 2vw, 28px);
  letter-spacing: -.02em;
  color: var(--ns-text);
  font-weight: 500;
  font-family: var(--ns-font);
}
.pillar__tag {
  padding: 5px 10px;
  border: 1px solid var(--ns-line);
  border-radius: 999px;
}

.pillar__title {
  font-size: clamp(22px, 2.1vw, 30px);
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 500;
  margin: 0;
  color: var(--ns-text);
}
.pillar__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ns-muted);
  max-width: 52ch;
}
.pillar__list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid; gap: 10px;
}
.pillar__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--ns-muted);
}
.pillar__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 10px; height: 1px;
  background: var(--ns-accent);
}

.pillar__foot {
  margin-top: auto;
  display: flex;
  justify-content: flex-end;
}
.pillar__arrow {
  width: 38px; height: 38px;
  padding: 9px;
  border: 1px solid var(--ns-line);
  border-radius: 50%;
  color: var(--ns-muted);
  transition: transform .5s var(--ns-ease), color .3s, border-color .3s, background .3s;
}
.pillar:hover .pillar__arrow {
  color: var(--ns-bg);
  background: var(--ns-accent);
  border-color: var(--ns-accent);
  transform: rotate(-45deg) scale(1.05);
}

/* Cursor-following glow */
.pillar__glow {
  position: absolute;
  top: 0; left: 0;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(200,255,62,0.18) 0%, transparent 60%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity .4s var(--ns-ease);
  pointer-events: none;
  z-index: 1;
}
.pillar:hover .pillar__glow { opacity: 1; }

/* Accent variant */
.pillar--accent {
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(200,255,62,0.10) 0%, transparent 60%),
    linear-gradient(180deg, rgba(200,255,62,0.04), rgba(200,255,62,0.01));
  border-color: rgba(200,255,62,0.18);
}
.pillar--accent .pillar__num,
.pillar--accent .pillar__title { color: var(--ns-accent); }
.pillar--accent .pillar__tag {
  border-color: rgba(200,255,62,0.25);
  color: var(--ns-accent);
}

/* Large variant — adds inner ornament */
.pillar--lg::before {
  content: "";
  position: absolute;
  right: -1px; top: -1px;
  width: 140px; height: 140px;
  border-left: 1px solid var(--ns-line);
  border-bottom: 1px solid var(--ns-line);
  border-bottom-left-radius: 100%;
  opacity: .6;
  pointer-events: none;
  z-index: 1;
}

/* ---------- Closing ---------- */
.ns-vision__closing {
  position: relative;
  margin-top: clamp(70px, 9vw, 130px);
  padding: clamp(40px, 5vw, 70px) clamp(28px, 4vw, 60px);
  border: 1px solid var(--ns-line);
  border-radius: calc(var(--ns-radius) + 6px);
  background:
    radial-gradient(80% 120% at 0% 0%, rgba(106,123,255,0.10) 0%, transparent 55%),
    radial-gradient(80% 120% at 100% 100%, rgba(200,255,62,0.08) 0%, transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005));
  text-align: center;
  overflow: hidden;
}
.ns-vision__closing-mark {
  width: 40px; height: 40px;
  margin: 0 auto 28px;
  color: var(--ns-accent);
  animation: spinSlow 18s linear infinite;
}
@keyframes spinSlow { to { transform: rotate(360deg); } }

.ns-vision__closing-text {
  font-family: var(--ns-serif);
  font-size: clamp(22px, 2.6vw, 36px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ns-text);
  max-width: 880px;
  margin: 0 auto;
  font-weight: 400;
}
.ns-vision__closing-text span {
  font-style: italic;
  color: var(--ns-accent);
}

.ns-vision__closing-meta {
  margin-top: 32px;
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--ns-mono);
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ns-dim);
}
.ns-vision__closing-meta .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--ns-dim);
}

/* ---------- Reveal animations ---------- */
.ns-vision__title .line span,
.ns-vision__title .line {
  transform: translateY(100%);
  opacity: 0;
  animation: rise 1s var(--ns-ease) forwards;
}
.ns-vision__title .line:nth-child(1) { animation-delay: .05s; }
.ns-vision__title .line:nth-child(2) { animation-delay: .18s; }
.ns-vision__title .line:nth-child(3) { animation-delay: .32s; }
@keyframes rise {
  to { transform: translateY(0); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .pillar { opacity: 1; transform: none; }
}

/* ---------- Responsive tweaks ---------- */
@media (max-width: 640px) {
  .ns-vision__index { display: none; }
  .ns-vision__container { width: 90%; }
  .pillar__inner { padding: 24px; }
}