/* ============================================
   ABOUT PAGE — KINETIC BAMBOO / BRUTALIST
   Design System: Sharp edges, massive type,
   neon accents, kinetic flow animations
   ============================================ */

/* ── HERO ── */
.kb-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #000;
}

#aboutParticles {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.kb-hero__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: .06;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  background-size: 128px;
  pointer-events: none;
}

.kb-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 1000px;
}

.kb-label {
  display: inline-block;
  font-family: var(--font-h);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .3em;
  color: var(--green);
  margin-bottom: 2rem;
  border: 1px solid var(--green);
  padding: .4rem 1.2rem;
}

.kb-hero__title {
  font-family: var(--font-h);
  font-size: clamp(2.4rem, 7vw, 5.5rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  color: #fff;
}

.kb-accent {
  color: var(--green);
  text-shadow: 0 0 60px rgba(191,255,0,.25), 0 0 120px rgba(191,255,0,.08);
}

.kb-italic {
  font-style: italic;
}

.kb-hero__sub {
  color: var(--text-mid);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  max-width: 600px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

.kb-hero__sub em {
  color: var(--green);
  font-style: italic;
}

/* Scroll cue */
.kb-scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .8rem;
}

.kb-scroll-cue span {
  font-family: var(--font-h);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .3em;
  color: var(--text-muted);
}

.kb-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(180deg, var(--green), transparent);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: .3; transform: scaleY(1); }
  50%      { opacity: 1; transform: scaleY(1.3); }
}

/* Fade-in animation */
.anim-fade {
  opacity: 0;
  transform: translateY(30px);
  animation: kbFadeUp .8s ease forwards;
}

.anim-fade[data-delay="1"] { animation-delay: .2s; }
.anim-fade[data-delay="2"] { animation-delay: .4s; }
.anim-fade[data-delay="3"] { animation-delay: .6s; }

@keyframes kbFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ── SECTIONS ── */
.kb-section {
  padding: 8rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.kb-section__header {
  margin-bottom: 4rem;
}

.kb-section__title {
  font-family: var(--font-h);
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-top: 1rem;
}

.kb-section__desc {
  color: var(--text-mid);
  font-size: 1.05rem;
  max-width: 600px;
  line-height: 1.7;
  margin-top: 1rem;
}

/* ── TIMELINE ── */
.kb-timeline {
  position: relative;
  padding-left: 80px;
  margin-top: 2rem;
}

.kb-timeline__rail {
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,.08);
}

.kb-timeline__rail-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--green);
  box-shadow: 0 0 16px rgba(191,255,0,.5), 0 0 40px rgba(191,255,0,.15);
  transition: height .1s linear;
}

.kb-timeline__item {
  position: relative;
  padding: 2rem 0;
  opacity: 0;
  transform: translateX(-40px);
  transition: all .7s cubic-bezier(.22,1,.36,1);
}

.kb-timeline__item.visible {
  opacity: 1;
  transform: translateX(0);
}

.kb-timeline__node {
  position: absolute;
  left: -62px;
  top: 2.5rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.kb-timeline__num {
  font-family: var(--font-h);
  font-size: .7rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .5s;
}

.kb-timeline__item.visible .kb-timeline__num {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 20px rgba(191,255,0,.3);
  background: rgba(191,255,0,.05);
}

.kb-timeline__card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  padding: 2rem 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all .4s;
}

.kb-timeline__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent);
  opacity: 0;
  transition: .5s;
}

.kb-timeline__item.visible .kb-timeline__card::before {
  opacity: 1;
}

.kb-timeline__card:hover {
  border-color: rgba(191,255,0,.2);
  transform: translateX(8px);
  background: rgba(191,255,0,.02);
}

.kb-timeline__emoji {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 1rem;
}

.kb-timeline__card h3 {
  font-family: var(--font-h);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: .5rem;
}

.kb-timeline__card p {
  color: var(--text-mid);
  line-height: 1.7;
  font-size: .95rem;
}

/* ── COMPARE ARENA ── */
.kb-compare__grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: start;
}

.kb-compare__col {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  padding: 2rem;
  transition: .4s;
}

.kb-compare__col--bamboo:hover {
  border-color: rgba(191,255,0,.3);
  box-shadow: 0 0 60px rgba(191,255,0,.04);
}

.kb-compare__col--cotton {
  opacity: .6;
}

.kb-compare__col--cotton:hover {
  opacity: 1;
}

.kb-compare__col-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.kb-compare__icon {
  font-size: 2.2rem;
}

.kb-compare__col-header h3 {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.kb-compare__stat {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1.2rem;
}

.kb-compare__stat-label {
  font-family: var(--font-h);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--text-mid);
}

.kb-compare__bar-track {
  height: 6px;
  background: rgba(255,255,255,.06);
  overflow: hidden;
  position: relative;
}

.kb-compare__bar {
  height: 100%;
  width: 0;
  transition: width 1.5s cubic-bezier(.22,1,.36,1);
}

.kb-compare__bar.animated {
  width: calc(var(--target) * 1%);
}

.kb-compare__bar--bamboo {
  background: linear-gradient(90deg, var(--green-light), var(--green));
}

.kb-compare__bar--cotton {
  background: linear-gradient(90deg, #444, #666);
}

.kb-compare__stat-val {
  font-family: var(--font-h);
  font-weight: 700;
  font-size: .85rem;
  color: var(--text);
}

.kb-compare__col--bamboo .kb-compare__stat-val {
  color: var(--green);
}

.kb-compare__vs {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 6rem;
}

.kb-compare__vs-box {
  width: 56px;
  height: 56px;
  border: 2px solid var(--green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 1rem;
  color: var(--green);
  background: var(--bg);
  animation: vsPulse 2s infinite;
  flex-shrink: 0;
  letter-spacing: .05em;
}

@keyframes vsPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(191,255,0,.3); }
  50%      { box-shadow: 0 0 0 15px rgba(191,255,0,0); }
}

/* ── CULTIVATION FLOW ── */
.kb-flow__track {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-top: 3rem;
}

.kb-flow__line {
  position: absolute;
  left: 39px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255,255,255,.06);
}

.kb-flow__line-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: var(--green);
  box-shadow: 0 0 12px rgba(191,255,0,.4);
  transition: height .1s linear;
}

.kb-flow__step {
  display: grid;
  grid-template-columns: 80px 1fr 160px;
  gap: 1.5rem;
  align-items: center;
  padding: 2.5rem 0;
  position: relative;
  opacity: 0;
  transform: translateY(50px);
  transition: all .8s cubic-bezier(.22,1,.36,1);
}

.kb-flow__step.visible {
  opacity: 1;
  transform: translateY(0);
}

.kb-flow__node {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kb-flow__node-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  border: 1px solid rgba(255,255,255,.1);
  background: var(--bg);
  position: relative;
  z-index: 2;
  transition: .5s;
}

.kb-flow__step.visible .kb-flow__node-icon {
  border-color: var(--green);
  box-shadow: 0 0 30px rgba(191,255,0,.15);
  background: rgba(191,255,0,.03);
}

.kb-flow__node-pulse {
  position: absolute;
  width: 56px;
  height: 56px;
  border: 1px solid var(--green);
  opacity: 0;
  z-index: 1;
}

.kb-flow__step.visible .kb-flow__node-pulse {
  animation: flowPulseAnim 2s .5s infinite;
}

@keyframes flowPulseAnim {
  0%   { transform: scale(1); opacity: .5; }
  100% { transform: scale(2.2); opacity: 0; }
}

.kb-flow__step-num {
  font-family: var(--font-h);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--green);
  display: block;
  margin-bottom: .3rem;
}

.kb-flow__info h3 {
  font-family: var(--font-h);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .02em;
  margin-bottom: .3rem;
}

.kb-flow__info p {
  color: var(--text-mid);
  font-size: .9rem;
  line-height: 1.6;
}

.kb-flow__img {
  width: 160px;
  height: 110px;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,.08);
  transition: .5s;
  opacity: .6;
  filter: grayscale(.3);
}

.kb-flow__step.visible .kb-flow__img {
  opacity: 1;
  filter: grayscale(0);
}

.kb-flow__step:hover .kb-flow__img {
  border-color: var(--green);
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(191,255,0,.1);
}

/* ── IMPACT GRID ── */
.kb-impact__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
  margin-bottom: 3rem;
}

.kb-impact__card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  padding: 2rem 1.2rem;
  text-align: center;
  transition: .4s;
  position: relative;
  overflow: hidden;
}

.kb-impact__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(191,255,0,.05), transparent 70%);
  opacity: 0;
  transition: .4s;
}

.kb-impact__card:hover {
  border-color: rgba(191,255,0,.3);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(191,255,0,.06);
}

.kb-impact__card:hover::before {
  opacity: 1;
}

.kb-impact__emoji {
  font-size: 2rem;
  display: block;
  margin-bottom: .8rem;
}

.kb-impact__num {
  font-family: var(--font-h);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--green);
  display: block;
  line-height: 1.1;
}

.kb-impact__label {
  font-family: var(--font-h);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--text-mid);
  margin-top: .5rem;
  display: block;
}

.kb-impact__sub {
  font-size: .65rem;
  color: var(--text-muted);
  margin-top: .2rem;
  display: block;
}

/* ── COMMUNITY STATS ── */
.kb-comm {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.kb-comm__stat {
  text-align: center;
  padding: 2rem 1rem;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  transition: .4s;
}

.kb-comm__stat:hover {
  border-color: rgba(191,255,0,.3);
  transform: translateY(-4px);
}

.kb-comm__icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: .5rem;
}

.kb-comm__num {
  font-family: var(--font-h);
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  display: block;
}

.kb-comm__label {
  font-family: var(--font-h);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--text-mid);
  display: block;
  margin-top: .3rem;
  text-transform: uppercase;
}

/* ── RESEARCH META ── */
.kb-research-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  padding: 1.2rem 1.5rem;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
}

.kb-research-meta__item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--text-mid);
}

.kb-research-meta__item strong {
  color: var(--text);
  font-weight: 600;
}

.kb-pdf-link {
  display: inline-block;
  margin-top: 1.5rem;
  padding: .7rem 1.5rem;
  border: 1px solid rgba(255,255,255,.1);
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-h);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .08em;
  transition: .3s;
}

.kb-pdf-link:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 20px rgba(191,255,0,.08);
}

/* ── SCROLL REVEAL ── */
.kb-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .8s ease, transform .8s ease;
}

.kb-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .kb-section { padding: 5rem 1.2rem; }

  .kb-hero__title {
    font-size: clamp(1.8rem, 8vw, 3.2rem);
  }

  .kb-compare__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .kb-compare__vs { padding: .5rem 0; }
  .kb-compare__vs-box { width: 44px; height: 44px; font-size: .85rem; }

  .kb-flow__step {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }

  .kb-flow__img { display: none; }

  .kb-flow__node-icon,
  .kb-flow__node-pulse {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
  }

  .kb-flow__line { left: 29px; }

  .kb-timeline { padding-left: 60px; }
  .kb-timeline__node { left: -48px; }
  .kb-timeline__num { width: 30px; height: 30px; font-size: .6rem; }
  .kb-timeline__card { padding: 1.5rem; }

  .kb-comm { grid-template-columns: 1fr; }
  .kb-impact__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .kb-impact__grid { grid-template-columns: 1fr; }
  .kb-label { font-size: .65rem; padding: .3rem .8rem; }
}