/* ============================================================
   WANNASITE — style.css
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red: #e10600;
  --red-dark: #b80500;
  --black: #0d0d0d;
  --charcoal: #1a1a1a;
  --charcoal-2: #222222;
  --grey-dark: #444444;
  --grey-mid: #888888;
  --grey-light: #c8c8c8;
  --grey-bg: #f5f5f5;
  --white: #ffffff;
  --font: 'Inter', system-ui, sans-serif;
  --max-w: 1200px;
  --radius: 6px;
  --transition: 0.22s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── UTILITIES ────────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.text-red { color: var(--red); }

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}
.section-eyebrow--light { color: rgba(255,255,255,0.55); }

.section-headline {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--black);
}
.section-headline--light { color: var(--white); }

.section-sub {
  font-size: 1.05rem;
  color: var(--grey-dark);
  line-height: 1.7;
  max-width: 560px;
}
.section-sub--light { color: rgba(255,255,255,0.6); }

.section-header { margin-bottom: 4rem; }
.section-header--light .section-headline { color: var(--white); }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--red { background: var(--red); color: var(--white); border-color: var(--red); padding: 0.8rem 1.8rem; }
.btn--red:hover { background: var(--red-dark); border-color: var(--red-dark); box-shadow: 0 4px 20px rgba(225,6,0,0.3); }

.btn--outline { background: transparent; color: var(--black); border-color: var(--grey-light); padding: 0.8rem 1.8rem; }
.btn--outline:hover { border-color: var(--black); }

.btn--ghost { background: transparent; color: var(--black); border-color: rgba(0,0,0,0.18); padding: 0.8rem 1.8rem; }
.btn--ghost:hover { background: rgba(0,0,0,0.04); }

.btn--sm { padding: 0.55rem 1.2rem; font-size: 0.82rem; }
.btn--lg { padding: 1rem 2.2rem; font-size: 0.95rem; }
.btn--xl { padding: 1.15rem 2.8rem; font-size: 1rem; }

/* ── NAV ─────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.07);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: 0 2px 24px rgba(0,0,0,0.07); }

.nav__inner {
  display: flex; align-items: center; gap: 2rem;
  height: 68px;
}

.nav__logo { 
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
}
.nav__logo-name {
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  font-size: 1.95rem; 
  font-weight: 500; 
  letter-spacing: -0.02em; 
  line-height: 1;
}
.logo-wanna { color: #c30712; }
.logo-site { color: #888888; }
.nav__logo-tagline {
  font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
  font-size: 0.72rem;
  color: #888888;
  margin-top: 0.1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav__links {
  display: flex; gap: 2rem; list-style: none;
  margin-left: auto;
}
.nav__links a {
  font-size: 0.85rem; font-weight: 500; color: var(--grey-dark);
  text-decoration: none; transition: color var(--transition);
}
.nav__links a:hover { color: var(--black); }

.nav__cta { margin-left: 0.5rem; }

.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px; margin-left: auto;
}
.nav__burger span {
  display: block; width: 24px; height: 2px;
  background: var(--black); border-radius: 2px; transition: var(--transition);
}

.nav__mobile {
  display: none; flex-direction: column;
  padding: 1rem 2rem 1.5rem; gap: 1rem;
  border-top: 1px solid rgba(0,0,0,0.07);
}
.nav__mobile a { font-size: 0.95rem; font-weight: 500; color: var(--black); text-decoration: none; }
.nav__mobile.open { display: flex; }

/* ── HERO ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: var(--white);
}

.hero__grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.038) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 65% 80% at 20% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

/* Asymmetric split — left 38%, right 62% */
.hero__inner {
  display: grid;
  grid-template-columns: 38% 62%;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* LEFT column */
.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 9rem 4rem 6rem 6vw;
}

.hero__eyebrow {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--red); margin-bottom: 1.75rem;
}

.hero__headline {
  font-size: clamp(3.2rem, 4.5vw, 5.4rem);
  font-weight: 900; line-height: 1.02;
  letter-spacing: -0.04em; color: var(--black);
  margin-bottom: 2rem;
}
.hero__headline em { font-style: normal; }

.hero__sub {
  font-size: 1rem; color: var(--grey-dark);
  line-height: 1.78; max-width: 360px; margin-bottom: 2.75rem;
}

.hero__actions { display: flex; flex-direction: column; gap: 0.85rem; align-items: flex-start; }

/* RIGHT column — full-height immersive panel */
.hero__visual {
  position: relative;
  background: #f8f8f8;
  border-left: 1px solid rgba(0,0,0,0.06);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__visual::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(225,6,0,0.03) 0%, transparent 60%),
              linear-gradient(rgba(0,0,0,0.025) 1px, transparent 1px),
              linear-gradient(90deg, rgba(0,0,0,0.025) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
  pointer-events: none;
}

/* ── SYSTEM SCENE ── */
.sys-scene {
  position: relative;
  width: 520px;
  height: 460px;
  perspective: 1000px;
}

/* Background depth plate */
.sys-plate--bg {
  position: absolute;
  inset: -24px -32px;
  background: linear-gradient(145deg, #ececec, #e4e4e4);
  border-radius: 20px;
  transform: rotateX(4deg) rotateY(-6deg) translateZ(-40px);
  box-shadow: 0 32px 80px rgba(0,0,0,0.12);
}

/* ── Main pipeline card ── */
.sys-card--main {
  position: absolute;
  top: 0; left: 0; right: 0;
  background: var(--white);
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,0.09);
  box-shadow: 0 8px 40px rgba(0,0,0,0.1), 0 2px 8px rgba(0,0,0,0.06);
  overflow: hidden;
  transform: rotateX(2deg) rotateY(-3deg);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.sys-scene:hover .sys-card--main {
  transform: rotateX(0deg) rotateY(0deg);
  box-shadow: 0 16px 60px rgba(0,0,0,0.13), 0 4px 12px rgba(0,0,0,0.07);
}

.sys-card__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  background: #fafafa;
}
.sys-card__dot {
  width: 10px; height: 10px; border-radius: 50%;
}
.sys-card__dot--green  { background: #28c840; }
.sys-card__dot--yellow { background: #ffbd2e; }
.sys-card__dot--red-sm { background: #ff5f57; }
.sys-card__title {
  margin-left: 6px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--grey-mid);
}

/* Pipeline stages */
.sys-pipeline { padding: 0.5rem 0; }

.sys-stage {
  display: flex; align-items: center; gap: 0.85rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(0,0,0,0.045);
  transition: background var(--transition);
}
.sys-stage:last-child { border-bottom: none; }
.sys-stage--active { background: rgba(225,6,0,0.018); }
.sys-stage--running { background: rgba(225,6,0,0.03); }

.sys-stage__icon {
  flex-shrink: 0; color: var(--grey-mid);
  display: flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
}
.sys-stage__icon--red { color: var(--red); }

.sys-stage__info {
  flex: 1; display: flex; flex-direction: column; gap: 2px;
}
.sys-stage__name {
  font-size: 0.8rem; font-weight: 600; color: var(--black);
}
.sys-stage__meta {
  font-size: 0.68rem; color: var(--grey-mid); font-weight: 400;
}

.sys-stage__badge {
  font-size: 0.62rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 0.2rem 0.55rem;
  border-radius: 4px; white-space: nowrap;
}
.sys-stage__badge--done { background: #eaf6ec; color: #1a8e2d; }
.sys-stage__badge--live {
  background: rgba(225,6,0,0.1); color: var(--red);
  animation: livePulse 2s ease-in-out infinite;
}
.sys-stage__badge--wait { background: #f0f0f0; color: var(--grey-mid); }

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ── Live feed card ── */
.sys-card--feed {
  position: absolute;
  bottom: 0; left: 20px; right: 20px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 6px 28px rgba(0,0,0,0.09);
  padding: 0.9rem 1.1rem;
  transform: rotateX(1deg) rotateY(-2deg) translateY(8px);
  transition: transform 0.4s ease;
}
.sys-scene:hover .sys-card--feed {
  transform: rotateX(0deg) rotateY(0deg) translateY(0px);
}

.sys-feed-header {
  display: flex; align-items: center; gap: 0.55rem;
  margin-bottom: 0.65rem;
}
.sys-feed-title {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--grey-mid);
}

/* Animated pulse dot */
.sys-pulse {
  position: relative;
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--red);
}
.sys-pulse::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--red);
  animation: pulseRing 1.8s ease-out infinite;
}
@keyframes pulseRing {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(2); opacity: 0; }
}

.sys-feed { display: flex; flex-direction: column; gap: 0.45rem; }
.sys-feed__item {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.76rem; color: var(--grey-dark); font-weight: 400;
}
.sys-feed__item--1 { animation: feedSlide 0.5s ease both; }
.sys-feed__item--2 { animation: feedSlide 0.5s 0.1s ease both; }
.sys-feed__item--3 { animation: feedSlide 0.5s 0.2s ease both; }
@keyframes feedSlide {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

.sys-feed__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--grey-light); flex-shrink: 0;
}
.sys-feed__dot--red { background: var(--red); }
.sys-feed__dot--green { background: #28c840; }

/* ── Floating stat chips ── */
.sys-float {
  position: absolute;
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  display: flex; flex-direction: column; gap: 2px;
  min-width: 110px;
}
.sys-float--tr {
  top: -18px; right: -28px;
  animation: floatA 4s ease-in-out infinite;
}
.sys-float--bl {
  bottom: 80px; left: -32px;
  animation: floatB 4.5s 1s ease-in-out infinite;
}
@keyframes floatA {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}
@keyframes floatB {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

.sys-float__label {
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--grey-mid);
}
.sys-float__value {
  font-size: 1.7rem; font-weight: 900; letter-spacing: -0.04em; color: var(--black);
  line-height: 1;
}
.sys-float__value span { font-size: 0.9rem; color: var(--red); font-weight: 700; }
.sys-float__sub {
  font-size: 0.62rem; color: var(--grey-mid); margin-top: 1px;
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute; bottom: 2rem; left: 38%; transform: translateX(-50%);
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, transparent, var(--grey-light));
  margin: 0 auto;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ── PROBLEM ──────────────────────────────────────────── */
.problem {
  padding: 8rem 0;
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.problem__inner {
  display: grid;
  grid-template-columns: 38% 62%;
  gap: 5rem;
  align-items: start;
}

/* LEFT */
.problem__headline {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800; line-height: 1.13; letter-spacing: -0.025em;
  margin-bottom: 1.75rem;
}

.problem__body {
  font-size: 0.95rem; color: var(--grey-dark);
  line-height: 1.8; margin-bottom: 2rem;
}

.problem__tension {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1.5;
  border-left: 2px solid var(--red);
  padding-left: 1rem;
  margin-top: 0.5rem;
}

/* RIGHT — problem items */
.problem__right {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.problem-item {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 0;
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  overflow: hidden;
  transition: background var(--transition);
}
.problem-item:first-child { border-top: 1px solid rgba(0,0,0,0.08); }
.problem-item:hover { background: #fafafa; }

/* Large ghost number — decorative backdrop */
.problem-item__ghost {
  font-size: 4.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  color: rgba(0,0,0,0.055);
  flex-shrink: 0;
  padding-top: 0.1rem;
  user-select: none;
  transition: color var(--transition);
}
.problem-item:hover .problem-item__ghost { color: rgba(225,6,0,0.08); }

/* Inner content */
.problem-item__inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-left: 0.5rem;
}

/* Category tag */
.problem-item__header { display: flex; align-items: center; gap: 0.75rem; }
.problem-item__tag {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-mid);
}

/* Title */
.problem-item__inner h3 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1.2;
  margin: 0;
}

/* Body copy with strong emphasis */
.problem-item__inner p {
  font-size: 0.9rem;
  color: var(--grey-dark);
  line-height: 1.72;
}
.problem-item__inner p strong {
  color: var(--black);
  font-weight: 700;
}

/* Stat callout row */
.problem-item__stat {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  margin-top: 0.25rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.problem-stat__num {
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--red);
  line-height: 1;
  white-space: nowrap;
}
.problem-stat__label {
  font-size: 0.78rem;
  color: var(--grey-mid);
  font-weight: 400;
  line-height: 1.4;
}

/* ── SOLUTION ────────────────────────────────────────────── */
.solution { padding: 7rem 0; background: var(--white); border-bottom: 1px solid rgba(0,0,0,0.07); }

.solution__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 4.5rem;
  flex-wrap: wrap;
}
.solution__header-meta {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-mid);
  white-space: nowrap;
  padding-bottom: 0.25rem;
}

.solution__cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(0,0,0,0.1);
}

.sol-col {
  padding: 3.5rem 2.5rem 3.5rem 0;
  border-right: 1px solid rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  position: relative;
  transition: background var(--transition);
}
.sol-col::before {
  /* hover top accent */
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.sol-col:hover::before { transform: scaleX(1); }
.sol-col:first-child { padding-left: 0; }
.sol-col:last-child  { border-right: none; padding-right: 0; }
.sol-col + .sol-col  { padding-left: 2.5rem; }

.sol-col__top {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0;
}

.sol-col__num {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(0,0,0,0.12);
}

.sol-col__phase {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
}

.sol-col__title {
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--black);
}

.sol-col__body {
  font-size: 0.845rem;
  color: var(--grey-dark);
  line-height: 1.75;
  flex: 1;
}

.sol-col__outcomes {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0,0,0,0.07);
  margin-top: auto;
}
.sol-col__outcomes li {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--grey-dark);
  padding-left: 1rem;
  position: relative;
  line-height: 1.4;
}
.sol-col__outcomes li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: rgba(225,6,0,0.4);
  font-size: 0.7rem;
}

/* ── FLOW ──────────────────────────────────────────── */
.flow {
  padding: 8rem 0 9rem;
  background: var(--charcoal);
  position: relative; overflow: hidden;
}
.flow::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
/* Wide red centre glow behind AI step */
.flow::after {
  content: '';
  position: absolute;
  top: 58%; left: 50%; transform: translate(-50%, -50%);
  width: 520px; height: 420px;
  background: radial-gradient(ellipse, rgba(225,6,0,0.1) 0%, transparent 68%);
  pointer-events: none;
}

/* ── Track wrapper ── */
.flow__track {
  display: flex;
  align-items: flex-start;     /* items hang from top; margin-top creates the arc */
  position: relative;
  z-index: 1;
  margin-top: 4rem;
  padding-bottom: 0.5rem;       /* room for connector line overflow */
}

/* Shared horizontal connector rail behind all nodes */
.flow__track::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0; right: 0;
  height: 1px;
  background: rgba(255,255,255,0.08);
  transform: translateY(calc(-1 * (48px / 2)));   /* centres on default node */
  pointer-events: none;
}

/* Animated travelling highlight on the rail */
.flow__track::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(225,6,0,0.7), transparent);
  transform: translateY(calc(-1 * (48px / 2)));
  animation: railSweep 4s ease-in-out infinite;
  pointer-events: none;
}
@keyframes railSweep {
  0%   { left: -120px; opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { left: calc(100% + 120px); opacity: 0; }
}

/* ── Individual step ── */
.flow-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  padding: 0 1rem;
  position: relative;
}

/* Staggered vertical drop — steps fall away from AI peak */
#flow-step-1 { margin-top: 3.5rem; }
#flow-step-2 { margin-top: 1.75rem; }
#flow-step-3 { margin-top: 0; }    /* AI step at top of arc */
#flow-step-4 { margin-top: 1.75rem; }
#flow-step-5 { margin-top: 3.5rem; }

/* ── Node (default) ── */
.flow-step__node {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.flow-step__node-num {
  font-size: 0.72rem; font-weight: 700;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

/* ── AI node — dominant ── */
.flow-step__node--ai {
  width: 72px; height: 72px;
  border-color: var(--red);
  background: rgba(225,6,0,0.14);
  box-shadow:
    0 0 0 10px rgba(225,6,0,0.06),
    0 0 40px rgba(225,6,0,0.25),
    0 0 80px rgba(225,6,0,0.1);
}
.flow-step__node--ai .flow-step__node-num {
  font-size: 0.9rem;
  color: var(--red);
}

/* Dual pulsing rings on AI node */
.flow-step__ai-ring {
  position: absolute; inset: -10px;
  border-radius: 50%;
  border: 1px solid rgba(225,6,0,0.35);
  animation: aiRingPulse 2.4s ease-out infinite;
}
.flow-step__ai-ring-2 {
  position: absolute; inset: -20px;
  border-radius: 50%;
  border: 1px solid rgba(225,6,0,0.15);
  animation: aiRingPulse 2.4s 0.8s ease-out infinite;
}
@keyframes aiRingPulse {
  0%   { transform: scale(0.82); opacity: 0.9; }
  100% { transform: scale(1.35); opacity: 0; }
}

/* AI badge */
.flow-step__ai-badge {
  position: absolute;
  top: -26px; left: 50%; transform: translateX(-50%);
  background: var(--red); color: var(--white);
  font-size: 0.58rem; font-weight: 800; letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem; border-radius: 4px;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(225,6,0,0.4);
}

/* ── Final node ── */
.flow-step__node--final {
  border-color: rgba(255,255,255,0.28);
  background: rgba(255,255,255,0.07);
}
.flow-step__node--final .flow-step__node-num { color: rgba(255,255,255,0.65); }

/* ── Step content ── */
.flow-step__content { display: flex; flex-direction: column; gap: 0.4rem; }

.flow-step__content h3 {
  font-size: 0.88rem; font-weight: 700;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.01em;
}
.flow-step--ai .flow-step__content h3 {
  font-size: 1rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: -0.01em;
}
.flow-step--final .flow-step__content h3 { color: rgba(255,255,255,0.8); }

.flow-step__content p {
  font-size: 0.76rem;
  color: rgba(255,255,255,0.32);
  line-height: 1.65;
  max-width: 160px;
  margin: 0 auto;
}
.flow-step--ai .flow-step__content p {
  color: rgba(255,255,255,0.48);
  max-width: 190px;
}

/* ── Arrow connectors ── */
.flow-step__arrow {
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: rgba(255,255,255,0.1);
  /* push arrows up to align with AI node centre */
  margin-bottom: 3.5rem;
  margin-left: -6px; margin-right: -6px;
}
/* arrows flanking steps 2 and 4 align to their midpoint */
.flow-step__arrow:nth-of-type(2) { margin-bottom: 1.75rem; }   /* between 2→AI */
.flow-step__arrow:nth-of-type(3) { margin-bottom: 1.75rem; }   /* between AI→4 */
.flow-step__arrow--accent { color: rgba(225,6,0,0.5); }

/* ── COMPARISON ──────────────────────────────────────────── */
.comparison {
  padding: 7rem 0;
  background: #f2f2f2;
  border-top: 1px solid rgba(0,0,0,0.07);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}

.comparison__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; max-width: 880px; margin: 0 auto;
}

.comparison-col {
  border-radius: 10px; overflow: hidden;
  border: 1px solid rgba(0,0,0,0.09);
  transition: transform var(--transition), box-shadow var(--transition);
}

.comparison-col--new {
  transform: scale(1.04);
  box-shadow: 
    0 16px 40px rgba(0,0,0,0.15),
    0 0 0 1px rgba(225,6,0,0.4),
    0 0 30px rgba(225,6,0,0.05);
  border-color: transparent;
  position: relative;
  z-index: 2;
}

.comparison-col__header {
  padding: 1.25rem 1.75rem;
  background: var(--grey-bg);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.comparison-col--new .comparison-col__header { 
  background: var(--charcoal); 
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.comparison-col__label {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--grey-mid);
}
.comparison-col--new .comparison-col__label { color: rgba(255,255,255,0.5); }

.comparison-list { list-style: none; padding: 1rem 0; }
.comparison-list__item {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.875rem; font-weight: 500;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.comparison-list__item:last-child { border-bottom: none; }

.comparison-col--new .comparison-list__item { color: var(--white); border-color: rgba(255,255,255,0.06); }
.comparison-col--new .comparison-list { background: var(--charcoal-2); }
.comparison-col--old .comparison-list { background: var(--white); }

.comp-icon { font-size: 0.8rem; flex-shrink: 0; margin-top: 1px; }
.comp-icon--bad { color: var(--grey-mid); }
.comp-icon--good { color: var(--red); }

/* ── PRICING ──────────────────────────────────────────── */
.pricing {
  padding: 7rem 0 8rem;
  background: var(--white);
  border-top: 1px solid rgba(0,0,0,0.07);
}
.pricing__grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.pricing-card {
  background: #fdfdfd;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 14px; padding: 2.5rem 2rem;
  display: flex; flex-direction: column; gap: 1rem;
  position: relative;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}
.pricing-card:not(.pricing-card--featured) {
  opacity: 0.55;
  transform: scale(0.96);
}
.pricing-card:not(.pricing-card--featured):hover { 
  opacity: 1;
  transform: scale(0.98);
  box-shadow: 0 8px 32px rgba(0,0,0,0.07); 
}
.pricing-card--featured {
  background: var(--charcoal); border-color: transparent;
  padding: 3.5rem 2.5rem;
  box-shadow:
    0 40px 100px rgba(0,0,0,0.45),
    0 0 0 1px rgba(225,6,0,0.35),
    0 0 90px rgba(225,6,0,0.15);
  transform: translateY(-16px) scale(1.02);
  border-radius: 16px;
  z-index: 2;
}
.pricing-card__badge {
  position: absolute; top: -16px; left: 50%; transform: translateX(-50%);
  background: var(--red); color: var(--white);
  font-size: 0.64rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.35rem 1.1rem; border-radius: 50px;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(225,6,0,0.35);
}
.pricing-card__label {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--grey-mid);
}
.pricing-card--featured .pricing-card__label { color: rgba(255,255,255,0.4); }
.pricing-card__price {
  font-size: 3rem; font-weight: 900; letter-spacing: -0.03em;
  color: var(--black); line-height: 1;
}
.pricing-card--featured .pricing-card__price {
  color: var(--white);
  font-size: 3.75rem;
}
.pricing-card__currency { font-size: 1.5rem; vertical-align: super; font-weight: 600; }
.pricing-card--featured .pricing-card__currency { font-size: 1.75rem; }
.pricing-card__period {
  font-size: 0.78rem; color: var(--grey-mid); font-weight: 500;
  margin-top: -0.5rem;
}
.pricing-card--featured .pricing-card__period { color: rgba(255,255,255,0.38); }
.pricing-card__desc {
  font-size: 0.875rem; color: var(--grey-dark); line-height: 1.65;
  padding-bottom: 1rem; border-bottom: 1px solid rgba(0,0,0,0.07);
}
.pricing-card--featured .pricing-card__desc {
  color: rgba(255,255,255,0.6);
  border-color: rgba(255,255,255,0.1);
}
.pricing-card__features {
  list-style: none; display: flex; flex-direction: column; gap: 0.85rem;
  flex: 1;
}
.pricing-card__features li {
  font-size: 0.855rem; color: var(--grey-dark);
  padding-left: 1.25rem; position: relative;
  line-height: 1.5;
}
.pricing-card__features li::before {
  content: '—'; position: absolute; left: 0;
  color: var(--grey-light); font-size: 0.7rem;
}
.pricing-card--featured .pricing-card__features li { color: rgba(255,255,255,0.85); font-weight: 500; }
.pricing-card--featured .pricing-card__features li::before { color: rgba(225,6,0,0.8); }
.pricing-card .btn { margin-top: 1rem; width: 100%; padding: 1.1rem; }
.pricing-card--featured .btn--red {
  box-shadow: 0 4px 20px rgba(225,6,0,0.4);
  font-size: 0.95rem;
}
.pricing-card--featured .btn--red:hover {
  box-shadow: 0 6px 28px rgba(225,6,0,0.55);
}

/* ── METRICS ─────────────────────────────────────────────── */
.metrics { padding: 7rem 0 8rem; background: var(--black); }

.metrics__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 3rem; 
}

.metric {
  padding: 1rem;
  text-align: center;
}

.metric__pre {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--red);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.metric__value {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 900; letter-spacing: -0.04em;
  color: var(--white); line-height: 1;
  margin-bottom: 0.85rem;
}
.metric__unit { font-size: 0.5em; color: var(--red); font-weight: 700; margin-left: 0.1rem; }

.metric__label {
  font-size: 0.95rem; color: rgba(255,255,255,0.6);
  font-weight: 500; line-height: 1.4;
}

/* ── FINAL CTA ───────────────────────────────────────────── */
.cta-final {
  padding: 10rem 0 9rem;
  background: var(--white); position: relative; overflow: hidden;
  text-align: center;
}

.cta-final__grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 100%);
}

.cta-final__inner { position: relative; z-index: 1; }
.cta-final__inner .section-eyebrow { text-align: center; }

.cta-final__headline {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900; line-height: 1.1; letter-spacing: -0.03em;
  color: var(--black); margin-bottom: 1.5rem;
}

.cta-final__sub {
  font-size: 1.05rem; color: var(--grey-dark); line-height: 1.7;
  max-width: 520px; margin: 0 auto 3rem;
}

.cta-final__actions { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }

.cta-final__actions .btn--xl {
  padding: 1.25rem 2.5rem;
  font-size: 1.1rem;
  box-shadow: 0 12px 32px rgba(225,6,0,0.25), 0 0 0 6px rgba(225,6,0,0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cta-final__actions .btn--xl:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(225,6,0,0.35), 0 0 0 8px rgba(225,6,0,0.12);
}

.cta-final__note {
  font-size: 0.8rem; color: var(--grey-mid); font-weight: 400;
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  padding: 3rem 0; background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer__inner {
  display: flex; align-items: center; flex-wrap: wrap; gap: 2rem;
}

.footer__logo { text-decoration: none; }
.footer__logo a { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.03em; text-decoration: none; }
.footer__tagline { font-size: 0.72rem; color: rgba(255,255,255,0.3); margin-top: 0.25rem; letter-spacing: 0.05em; }

.footer__links {
  display: flex; gap: 2rem; flex-wrap: wrap; margin-left: auto;
}
.footer__links a {
  font-size: 0.82rem; color: rgba(255,255,255,0.4);
  text-decoration: none; transition: color var(--transition);
}
.footer__links a:hover { color: var(--white); }

.footer__copy { font-size: 0.75rem; color: rgba(255,255,255,0.2); width: 100%; }

/* ── ANIMATIONS ──────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1200px) {
  .hero__content { padding: 9rem 3rem 6rem 4rem; }
  .sys-scene { width: 440px; height: 420px; }
}

@media (max-width: 1024px) {
  .pricing__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .pricing-card--featured { transform: none; }
  .solution__grid { grid-template-columns: 1fr 1fr; }
  .flow__steps { grid-template-columns: 1fr 1fr; }
  .solution__cols { grid-template-columns: 1fr 1fr; }
  .sol-col { padding: 2rem 2rem 2rem 0; }
  .sol-col + .sol-col { padding-left: 2rem; }
  .sol-col:nth-child(2) { border-right: none; padding-right: 0; }
  .sol-col:nth-child(3) { padding-left: 0; border-right: 1px solid rgba(0,0,0,0.1); }
  .hero__inner { grid-template-columns: 44% 56%; }
  .sys-scene { width: 360px; height: 400px; }
  .sys-float--tr { right: -10px; }
  .sys-float--bl { left: -10px; }
}

@media (max-width: 768px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .hero__content { padding: 7rem 1.5rem 4rem; min-height: auto; }
  .hero { min-height: auto; }
  .hero__scroll-hint { left: 50%; }
  .problem__inner { grid-template-columns: 1fr; gap: 3rem; }
  .problem-item { grid-template-columns: 44px 1fr; }
  .problem-item__ghost { font-size: 2.75rem; }
  .solution__cols { grid-template-columns: 1fr 1fr; }
  .sol-col { padding: 1.75rem 1.5rem 1.75rem 0; }
  .sol-col + .sol-col { padding-left: 1.5rem; }
  .sol-col:nth-child(3) { padding-left: 0; border-right: 1px solid rgba(0,0,0,0.1); }
  .sol-col:nth-child(2) { border-right: none; padding-right: 0; }
  .flow__track { flex-wrap: wrap; gap: 2rem; }
  .flow-step__arrow { display: none; }
  .comparison__grid { grid-template-columns: 1fr; }
  .metrics__grid { grid-template-columns: 1fr 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .footer__links { margin-left: 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .metrics__grid { grid-template-columns: 1fr 1fr; }
  .hero__actions .btn { width: 100%; text-align: center; }
}

.pricing-card__block {
  margin-bottom: 1.5rem;
}
.pricing-card__block--contrast {
  background: rgba(0,0,0,0.3);
  padding: 1.25rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.05);
}
.pricing-card__features--bad li::before {
  content: '✕';
  color: rgba(255,255,255,0.4) !important;
}
.pricing-card__features--bad li {
  color: rgba(255,255,255,0.5) !important;
  text-decoration: line-through;
}

/* === OVERRIDES FOR CLARITY === */

/* 2. Problem Section */
.problem-item__inner h3 {
  color: var(--black) !important;
  font-weight: 700 !important;
  font-size: 1.5rem !important;
}
.problem-item__inner h3::before {
  content: '→ ';
  color: var(--red);
}

/* 4. Flow Section */
.flow-step__title {
  font-size: 1.2rem !important;
  color: #fff !important;
  margin-bottom: 0.5rem !important;
}
.flow-step__desc {
  font-size: 0.95rem !important;
  color: rgba(255,255,255,0.85) !important;
}

/* 5. Pricing Bullets Contrast & Spacing */
.pricing-card__features li {
  color: var(--charcoal) !important;
  padding-bottom: 0.5rem !important;
}
.pricing-card--featured .pricing-card__features li {
  color: rgba(255,255,255,0.95) !important;
}