:root {
  --bg: #ffffff;
  --bg-alt: #f3f4f6;
  --panel: #ffffff;
  --panel-strong: #111111;
  --panel-soft: rgba(255, 255, 255, 0.82);
  --text: #111111;
  --text-soft: rgba(17, 17, 17, 0.68);
  --text-inverse: #ffffff;
  --line: rgba(17, 17, 17, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #111111;
  --accent-strong: #000000;
  --accent-warm: #8f8f8f;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.12);
  --shadow-strong: 0 38px 120px rgba(0, 0, 0, 0.32);
  --radius-lg: 30px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --pointer-x: 0;
  --pointer-y: 0;
  --scroll-scale: 0;
  --header-overlap: 5.1rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, #050505 0, #050505 10rem, #ffffff 10rem),
    radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 24rem),
    var(--bg);
  overflow-x: hidden;
}

a {
  color: inherit;
}

section[id] {
  scroll-margin-top: 6.5rem;
}

img {
  display: block;
  max-width: 100%;
}

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  transform: scaleX(var(--scroll-scale));
  transform-origin: left center;
  background: linear-gradient(90deg, var(--accent), var(--accent-warm));
  z-index: 100;
}

.shell {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero-shell.shell {
  width: min(1280px, calc(100% - 2rem));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: 0.8rem;
  background: transparent;
  border-bottom: 0;
  transition: padding-top 220ms ease;
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1200px, calc(100% - 2rem));
  padding: 0.9rem 1.25rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
  transition:
    width 260ms ease,
    padding 220ms ease,
    border-radius 220ms ease,
    background-color 220ms ease,
    box-shadow 220ms ease;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.85rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  transition: gap 220ms ease, font-size 220ms ease;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
  transition: width 220ms ease, height 220ms ease, border-radius 220ms ease, box-shadow 220ms ease;
}

.site-nav {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  min-width: 0;
}

.site-nav a {
  color: rgba(17, 17, 17, 0.72);
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: color 180ms ease, font-size 220ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.compact-nav {
  position: relative;
  display: none;
  flex: 0 0 auto;
}

.compact-nav::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  width: 4.5rem;
  height: 0.9rem;
  transform: translateX(-50%);
}

.compact-nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.26rem;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  box-shadow: none;
  cursor: pointer;
  transition: opacity 180ms ease, transform 180ms ease;
}

.compact-nav-toggle span {
  display: block;
  width: 0.95rem;
  height: 1.5px;
  margin: 0 auto;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.8);
}

.compact-nav:hover .compact-nav-toggle,
.compact-nav:focus-within .compact-nav-toggle {
  opacity: 0.72;
  transform: translateY(-1px);
}

.compact-nav-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 50%;
  display: grid;
  gap: 0.2rem;
  min-width: 12rem;
  padding: 0.45rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.14);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(-50%, -6px, 0);
  transition: opacity 180ms ease, transform 180ms ease;
}

.compact-nav-menu a {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: 12px;
  color: rgba(17, 17, 17, 0.76);
  text-decoration: none;
  white-space: nowrap;
}

.compact-nav-menu a:hover,
.compact-nav-menu a:focus-visible {
  color: var(--text);
  background: rgba(17, 17, 17, 0.06);
}

.compact-nav:hover .compact-nav-menu,
.compact-nav:focus-within .compact-nav-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate3d(-50%, 0, 0);
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 50px;
  padding: 0.95rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
  border: 1px solid transparent;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background-color 220ms ease,
    color 220ms ease,
    box-shadow 220ms ease,
    min-height 220ms ease,
    padding 220ms ease,
    font-size 220ms ease;
  will-change: transform;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, #111111, #2b2b2b 54%, #6f6f6f 100%);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(17, 17, 17, 0.1);
}

.btn-light {
  color: var(--text);
  background: rgba(17, 23, 20, 0.05);
  border-color: rgba(17, 23, 20, 0.08);
}

.btn-compact {
  min-height: 44px;
  padding: 0.8rem 1.1rem;
  font-size: 0.92rem;
}

.site-header.is-compact {
  padding-top: 0.35rem;
}

.site-header.is-compact .header-shell {
  padding: 0.65rem 1rem;
  border-radius: 18px;
  justify-content: flex-start;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}

.site-header.is-compact .brand {
  gap: 0.65rem;
}

.site-header.is-compact .brand img {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.1);
}

.site-header.is-compact .site-nav a {
  font-size: 0.9rem;
}

.site-header.is-compact .site-nav {
  display: none;
}

.site-header.is-compact .compact-nav {
  display: inline-flex;
}

.site-header.is-compact .header-actions {
  margin-left: auto;
}

.site-header.is-compact .btn {
  min-height: 40px;
}

.site-header.is-compact .btn-compact {
  min-height: 38px;
  padding: 0.68rem 0.95rem;
  font-size: 0.88rem;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.1), transparent 24rem),
    linear-gradient(180deg, #050505 0%, #111111 72%, #1a1a1a 100%);
  margin-top: calc(-1 * var(--header-overlap));
  padding: calc(clamp(3.4rem, 8vw, 6.5rem) + var(--header-overlap)) 0 clamp(4.5rem, 8vw, 7rem);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(40px);
  pointer-events: none;
  opacity: 0.72;
}

.hero::before {
  width: 36rem;
  height: 36rem;
  top: -8rem;
  right: -10rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 68%);
}

.hero::after {
  width: 30rem;
  height: 30rem;
  left: -12rem;
  bottom: 2rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 70%);
}

.hero-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(430px, 1.02fr);
  gap: clamp(2rem, 3vw, 3.4rem);
  align-items: start;
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding-top: clamp(0.3rem, 1vw, 1rem);
}

.eyebrow,
.section-label,
.chip,
.mini-label,
.stat-label {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.73rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.35rem;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.eyebrow::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  box-shadow: 0 0 16px rgba(36, 199, 239, 0.35);
}

.hero h1 {
  margin: 0;
  max-width: 9ch;
  color: var(--text-inverse);
  font-size: clamp(3.3rem, 9vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.hero-lead {
  max-width: 40rem;
  margin: 1.5rem 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.08rem, 2vw, 1.25rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 2rem 0 1.65rem;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.hero-proof span::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(36, 199, 239, 0.35);
}

.hero-visual {
  position: relative;
  min-height: 36rem;
  padding: 2rem 0;
  z-index: 1;
}

.visual-shell {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.12), transparent 26rem),
    linear-gradient(180deg, rgba(24, 24, 24, 0.96), rgba(10, 10, 10, 0.98));
  box-shadow: var(--shadow-strong);
  transform:
    perspective(1300px)
    rotateX(calc(var(--pointer-y) * -2deg))
    rotateY(calc(var(--pointer-x) * 3deg))
    translate3d(calc(var(--pointer-x) * 10px), calc(var(--pointer-y) * 10px), 0);
  transition: transform 280ms ease;
}

.visual-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 100%);
  pointer-events: none;
}

.visual-topbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(246, 241, 232, 0.76);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
}

.visual-dots {
  display: inline-flex;
  gap: 0.45rem;
}

.visual-dots span {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.visual-body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(152px, 0.78fr) minmax(0, 1.22fr);
  gap: 0.9rem;
  padding: 0.95rem;
}

.sidebar-column,
.inspector-column,
.main-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}

.main-column {
  min-width: 0;
}

.inspector-column {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}

.mini-panel,
.main-panel {
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.mini-panel {
  padding: 0.9rem;
}

.mini-label {
  color: rgba(246, 241, 232, 0.58);
  transition: color 220ms ease;
}

.topic-list,
.doc-list,
.tool-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.topic-item,
.doc-item,
.tool-item,
.memory-signal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-width: 0;
  padding: 0.68rem 0.72rem;
  border-radius: 16px;
  color: rgba(246, 241, 232, 0.76);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.84rem;
}

.topic-item strong,
.doc-item strong,
.tool-item strong {
  font-weight: 500;
  min-width: 0;
  overflow-wrap: anywhere;
}

.topic-item.is-active {
  color: #2b2436;
  background: linear-gradient(135deg, rgba(129, 236, 244, 0.98), rgba(247, 177, 93, 0.84));
  border-color: transparent;
  box-shadow: 0 14px 30px rgba(36, 199, 239, 0.18);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 2.25rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(246, 241, 232, 0.72);
}

.topic-item.is-active .pill {
  color: rgba(43, 36, 54, 0.76);
  background: rgba(43, 36, 54, 0.12);
}

.main-panel {
  padding: 1rem;
  min-height: 100%;
  min-width: 0;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.55rem 0.8rem;
  color: rgba(246, 241, 232, 0.72);
  margin-bottom: 1rem;
  font-size: 0.86rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  background: rgba(36, 199, 239, 0.12);
  color: rgba(246, 241, 232, 0.68);
  border: 1px solid rgba(36, 199, 239, 0.16);
}

.message-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.message {
  max-width: 100%;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  font-size: 0.9rem;
  line-height: 1.55;
}

.message-user {
  align-self: flex-end;
  color: #2b2436;
  background: linear-gradient(135deg, rgba(129, 236, 244, 0.98), rgba(247, 177, 93, 0.84));
  box-shadow: 0 20px 38px rgba(36, 199, 239, 0.16);
}

.message-agent {
  align-self: flex-start;
  color: rgba(246, 241, 232, 0.9);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.memory-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin-top: 1rem;
}

.memory-signal {
  align-items: flex-start;
  flex-direction: column;
  min-height: 5.8rem;
}

.memory-signal strong {
  color: var(--text-inverse);
  font-size: 1rem;
}

.memory-signal span {
  color: rgba(246, 241, 232, 0.64);
  font-size: 0.86rem;
  line-height: 1.45;
}

.graph-field {
  position: relative;
  height: 128px;
  margin-top: 0.9rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at 30% 30%, rgba(111, 234, 243, 0.24), transparent 25%),
    radial-gradient(circle at 76% 45%, rgba(247, 177, 93, 0.2), transparent 30%),
    rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.graph-field::before,
.graph-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, transparent 46%, rgba(255, 255, 255, 0.08) 46%, rgba(255, 255, 255, 0.08) 48%, transparent 48%),
    linear-gradient(10deg, transparent 53%, rgba(255, 255, 255, 0.08) 53%, rgba(255, 255, 255, 0.08) 55%, transparent 55%);
  opacity: 0.9;
}

.node {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(36, 199, 239, 0.32);
  animation: pulse 3.6s ease-in-out infinite;
}

.node:nth-child(1) { top: 20%; left: 18%; animation-delay: 0s; }
.node:nth-child(2) { top: 52%; left: 38%; animation-delay: 0.5s; }
.node:nth-child(3) { top: 32%; right: 20%; animation-delay: 1s; background: var(--accent-warm); }
.node:nth-child(4) { bottom: 18%; right: 28%; animation-delay: 1.4s; }

.visual-badge {
  position: absolute;
  z-index: 3;
  max-width: 16rem;
  padding: 0.85rem 1rem;
  border-radius: 18px;
  pointer-events: none;
  backdrop-filter: blur(16px);
  background: rgba(251, 247, 240, 0.94);
  color: #121612;
  border: 1px solid rgba(17, 23, 20, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.26);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  opacity: 1;
  animation: drift 7s ease-in-out infinite;
}

.visual-badge small {
  display: block;
  margin-top: 0.25rem;
  color: rgba(17, 23, 20, 0.58);
  font-size: 0.76rem;
  font-weight: 500;
}

.badge-left {
  top: -1rem;
  left: -1rem;
  animation-delay: 0.2s;
}

.badge-right {
  right: -1rem;
  top: 32%;
  animation-delay: 0.9s;
}

.badge-bottom {
  left: 12%;
  bottom: -1rem;
  animation-delay: 1.4s;
}

.visual-topbar,
.mini-panel,
.main-panel,
.graph-field,
.topic-item,
.doc-item,
.tool-item,
.message,
.memory-signal,
.chip,
.visual-topbar > span,
.chat-header > span:not(.chip),
.visual-shell .pill,
.visual-dots span,
.node {
  cursor: pointer;
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background-color 220ms ease,
    box-shadow 220ms ease,
    color 220ms ease,
    filter 220ms ease,
    opacity 220ms ease;
}

.visual-topbar > span,
.chat-header > span:not(.chip) {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.visual-topbar:hover,
.mini-panel:hover,
.main-panel:hover {
  border-color: rgba(36, 199, 239, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 18px 40px rgba(0, 0, 0, 0.18);
}

.visual-topbar:hover {
  background: rgba(255, 255, 255, 0.03);
}

.mini-panel:hover .mini-label {
  color: rgba(246, 241, 232, 0.78);
}

.graph-field:hover {
  box-shadow:
    inset 0 0 0 1px rgba(36, 199, 239, 0.18),
    0 18px 34px rgba(0, 0, 0, 0.22);
}

.topic-item:hover,
.doc-item:hover,
.tool-item:hover,
.message:hover,
.memory-signal:hover,
.chip:hover,
.visual-topbar > span:hover,
.chat-header > span:not(.chip):hover,
.visual-shell .pill:hover {
  transform: translateY(-2px);
  border-color: rgba(36, 199, 239, 0.18);
}

.topic-item:hover,
.doc-item:hover,
.tool-item:hover,
.memory-signal:hover,
.visual-topbar > span:hover,
.chat-header > span:not(.chip):hover,
.visual-shell .pill:hover {
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
}

.topic-item:hover,
.doc-item:hover,
.tool-item:hover,
.memory-signal:hover {
  color: var(--text-inverse);
  background: rgba(255, 255, 255, 0.08);
}

.topic-item.is-active:hover {
  box-shadow: 0 20px 38px rgba(36, 199, 239, 0.22);
}

.topic-item:hover .pill,
.doc-item:hover .pill,
.tool-item:hover .pill {
  color: rgba(246, 241, 232, 0.92);
  background: rgba(255, 255, 255, 0.12);
}

.topic-item.is-active:hover .pill {
  color: rgba(43, 36, 54, 0.78);
  background: rgba(43, 36, 54, 0.16);
}

.message:hover {
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.18);
}

.message-user:hover {
  box-shadow: 0 24px 44px rgba(36, 199, 239, 0.2);
}

.message-agent:hover {
  background: rgba(255, 255, 255, 0.08);
}

.chip:hover,
.visual-topbar > span:hover,
.chat-header > span:not(.chip):hover,
.visual-shell .pill:hover {
  color: var(--text-inverse);
  background: rgba(255, 255, 255, 0.08);
}

.visual-dots span:hover {
  transform: scale(1.18);
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  box-shadow: 0 0 18px rgba(36, 199, 239, 0.35);
}

.graph-field:hover .node,
.node:hover {
  filter: brightness(1.15);
}

.graph-field:hover .node,
.node:nth-child(1):hover,
.node:nth-child(2):hover,
.node:nth-child(4):hover {
  box-shadow: 0 0 26px rgba(36, 199, 239, 0.46);
}

.graph-field:hover .node:nth-child(3),
.node:nth-child(3):hover {
  box-shadow: 0 0 26px rgba(255, 196, 121, 0.46);
}

.marquee {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(17, 23, 20, 0.08);
  border-bottom: 1px solid rgba(17, 23, 20, 0.08);
  background: rgba(255, 255, 255, 0.52);
  backdrop-filter: blur(10px);
}

.marquee-inner {
  display: flex;
  width: max-content;
  gap: 1rem;
  padding: 1rem 0;
  animation: marquee 28s linear infinite;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: rgba(17, 23, 20, 0.05);
  border: 1px solid rgba(17, 23, 20, 0.06);
  color: rgba(17, 23, 20, 0.78);
  white-space: nowrap;
  font-size: 0.95rem;
}

.marquee-item::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  flex: 0 0 auto;
}

.section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.section-dark {
  color: var(--text-inverse);
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 20rem),
    linear-gradient(180deg, #111111 0%, #1b1b1b 100%);
}

.section-heading {
  max-width: 50rem;
  margin-bottom: 2.4rem;
}

.section-label {
  margin: 0 0 0.8rem;
  color: rgba(17, 23, 20, 0.5);
}

.section-dark .section-label {
  color: rgba(246, 241, 232, 0.5);
}

.section-heading h2,
.privacy-copy h2,
.cta-panel h2 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
  max-width: 11ch;
}

.section-heading p,
.privacy-copy p,
.cta-panel p {
  margin: 1rem 0 0;
  color: var(--text-soft);
  font-size: 1.04rem;
  line-height: 1.7;
  max-width: 42rem;
}

.section-dark .section-heading p {
  color: rgba(246, 241, 232, 0.66);
}

.comparison-grid,
.step-grid,
.feature-grid,
.timeline-grid,
.privacy-cards,
.stack-grid {
  display: grid;
  gap: 1.2rem;
}

.comparison-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.comparison-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.comparison-card h3,
.step-card h3,
.feature-card h3,
.timeline-card h3,
.stack-card h3,
.privacy-card h3 {
  margin: 0.7rem 0 0;
  font-size: 1.4rem;
  letter-spacing: -0.04em;
}

.comparison-card p,
.step-card p,
.feature-card p,
.timeline-card p,
.stack-card p,
.privacy-card p {
  color: inherit;
  line-height: 1.65;
}

.comparison-card-old {
  color: var(--text-inverse);
  background:
    linear-gradient(180deg, rgba(36, 28, 50, 0.98), rgba(26, 20, 36, 0.98)),
    #2b2436;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-card-new {
  background: linear-gradient(180deg, rgba(251, 247, 240, 0.98), rgba(244, 237, 227, 0.98));
  border: 1px solid rgba(17, 23, 20, 0.08);
}

.story-list {
  margin-top: 1.3rem;
}

.story-row {
  display: flex;
  gap: 0.9rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-card-new .story-row {
  border-top-color: rgba(17, 23, 20, 0.09);
}

.story-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.3rem;
  height: 1.9rem;
  padding: 0 0.55rem;
  border-radius: 999px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(246, 241, 232, 0.74);
  flex: 0 0 auto;
}

.comparison-card-new .story-tag {
  background: rgba(17, 23, 20, 0.06);
  color: rgba(17, 23, 20, 0.68);
}

.story-row strong {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 1rem;
}

.story-row span {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(246, 241, 232, 0.62);
  line-height: 1.55;
}

.comparison-card-new .story-row span {
  color: rgba(17, 23, 20, 0.62);
}

.step-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step-card {
  position: relative;
  overflow: hidden;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.step-number {
  display: inline-block;
  font-size: 3.8rem;
  line-height: 1;
  letter-spacing: -0.08em;
  color: rgba(111, 234, 243, 0.36);
}

.step-card p {
  color: rgba(246, 241, 232, 0.66);
}

.step-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.step-pills span,
.feature-meta span,
.stack-pills span {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(246, 241, 232, 0.7);
  font-size: 0.84rem;
}

.workflow-story-panel {
  margin-top: 1.35rem;
  padding: clamp(1rem, 3vw, 1.35rem);
  border-radius: 32px;
  background:
    radial-gradient(circle at top right, rgba(111, 234, 243, 0.14), transparent 18rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.025));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.workflow-story-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.workflow-story-intro h3 {
  margin: 0.45rem 0 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.05em;
  max-width: 15ch;
}

.workflow-story-intro p {
  margin: 0.7rem 0 0;
  max-width: 40rem;
  color: rgba(246, 241, 232, 0.66);
  line-height: 1.65;
}

.workflow-story-intro .step-pills {
  margin-top: 0;
  justify-content: flex-end;
  flex: 0 0 auto;
}

.workflow-story-shell {
  --workflow-story-expand: 0;
  display: grid;
  grid-template-columns:
    minmax(0, calc(62% + 38% * var(--workflow-story-expand)))
    minmax(0, calc(38% * (1 - var(--workflow-story-expand))));
  gap: calc(1.5rem * (1 - var(--workflow-story-expand)));
  align-items: start;
  position: relative;
  transition: grid-template-columns 320ms ease, gap 320ms ease;
}

.workflow-story-visual {
  position: sticky;
  top: 6.75rem;
  z-index: 1;
}

.workflow-story-canvas {
  padding: 1rem;
  min-width: 0;
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(111, 234, 243, 0.1), transparent 18rem),
    linear-gradient(180deg, rgba(34, 27, 46, 0.96), rgba(20, 16, 30, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transition: border-radius 320ms ease, box-shadow 320ms ease;
}

.workflow-story-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  color: rgba(246, 241, 232, 0.72);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.workflow-story-progress-label {
  color: rgba(246, 241, 232, 0.54);
}

.workflow-story-stage {
  --workflow-story-scale: 1;
  position: relative;
  width: 100%;
  aspect-ratio: 41 / 26;
  margin-top: 0.95rem;
  border-radius: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 24% 20%, rgba(111, 234, 243, 0.2), transparent 15rem),
    radial-gradient(circle at 76% 74%, rgba(247, 177, 93, 0.16), transparent 16rem),
    linear-gradient(180deg, rgba(29, 24, 41, 0.98), rgba(20, 16, 30, 1));
}

.workflow-story-stage::before,
.workflow-story-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.workflow-story-stage::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.78), transparent 100%);
  opacity: 0.34;
}

.workflow-story-stage::after {
  background: radial-gradient(circle at center, transparent 45%, rgba(2, 4, 8, 0.34) 100%);
}

.workflow-story-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 820px;
  height: 520px;
  z-index: 1;
  transform-origin: top left;
  transform: scale(var(--workflow-story-scale));
}

.workflow-story-resource-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 820px;
  height: 520px;
  z-index: 2;
  pointer-events: none;
  transform-origin: top left;
  transform: scale(var(--workflow-story-scale));
}

.workflow-story-resource-card {
  position: absolute;
  padding: 1.1rem 1.1rem 1rem;
  background:
    linear-gradient(180deg, rgba(255, 252, 246, 0.98), rgba(248, 242, 232, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.56);
  box-shadow:
    0 18px 36px rgba(8, 11, 18, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.75);
  transform-origin: center;
  will-change: transform, opacity, width, height;
  overflow: hidden;
}

.workflow-story-resource-card-icon {
  position: absolute;
  top: 1.1rem;
  left: 1.1rem;
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 0.42rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.08)),
    var(--workflow-card-accent);
  border: 1px solid rgba(31, 26, 42, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.52);
}

.workflow-story-resource-card-content {
  width: calc(100% - 2.25rem);
  margin-left: 2.25rem;
}

.workflow-story-resource-card-title {
  display: block;
  margin: 0.06rem 0 0;
  color: #1f1a2a;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.1;
  min-width: 0;
}

.workflow-story-resource-card-meta {
  display: block;
  margin-top: 0.58rem;
  color: rgba(31, 26, 42, 0.48);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.58rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.workflow-story-resource-card-lines {
  width: 100%;
  display: grid;
  gap: 0.75rem;
  margin-top: 0.7rem;
}

.workflow-story-resource-card-line {
  display: block;
  height: 1px;
  background: rgba(31, 26, 42, 0.14);
}

.workflow-story-resource-card-line:last-child {
  width: 74%;
}

.workflow-story-badge,
.workflow-story-stats {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.78rem;
  border-radius: 999px;
  background: rgba(33, 27, 45, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(246, 241, 232, 0.74);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.workflow-story-badge::before,
.workflow-story-stats::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  box-shadow: 0 0 14px rgba(36, 199, 239, 0.34);
}

.workflow-story-badge {
  top: 1rem;
  left: 1rem;
}

.workflow-story-stats {
  right: 1rem;
  bottom: 1rem;
}

.workflow-story-copy {
  display: grid;
  width: min(100%, calc(26rem * (1 - var(--workflow-story-expand))));
  gap: 1rem;
  justify-self: end;
  min-width: 0;
  overflow: hidden;
  opacity: calc(1 - var(--workflow-story-expand));
  transform: translate3d(calc(2rem * var(--workflow-story-expand)), 0, 0);
  transition: opacity 260ms ease, transform 260ms ease, width 260ms ease;
}

.workflow-story-expansion-spacer {
  height: 62vh;
  min-height: 24rem;
  opacity: 0;
  pointer-events: none;
}

.workflow-story-step {
  min-height: 48vh;
  padding: 0.2rem 0 0;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  opacity: 0.26;
  transform: translateY(14px);
  transition: opacity 240ms ease, transform 240ms ease;
}

.workflow-story-step.is-active {
  opacity: 1;
  transform: translateY(0);
}

.workflow-story-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.3rem;
  padding: 0.32rem 0.5rem;
  border-radius: 999px;
  background: rgba(36, 199, 239, 0.14);
  border: 1px solid rgba(36, 199, 239, 0.2);
  color: rgba(246, 241, 232, 0.8);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
}

.workflow-story-step h4 {
  margin: 1rem 0 0;
  font-size: clamp(1.6rem, 2.8vw, 2.35rem);
  letter-spacing: -0.055em;
  line-height: 1.02;
  max-width: 10ch;
}

.workflow-story-step p {
  margin: 1rem 0 0;
  color: rgba(246, 241, 232, 0.7);
  font-size: 1rem;
  line-height: 1.72;
}

.workflow-story-link {
  fill: none;
  stroke: rgba(82, 191, 255, 0.42);
  stroke-width: 2.2;
  stroke-linecap: round;
}

.workflow-story-link.is-secondary {
  stroke: rgba(255, 255, 255, 0.16);
  stroke-width: 1.45;
}

.workflow-story-node-label {
  fill: rgba(246, 241, 232, 0.92);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-anchor: middle;
  paint-order: stroke;
  stroke: rgba(28, 22, 39, 0.85);
  stroke-width: 5px;
  stroke-linejoin: round;
}

.workflow-story-node-meta {
  fill: rgba(246, 241, 232, 0.52);
  font-family: "IBM Plex Mono", monospace;
  font-size: 8px;
  letter-spacing: 0.1em;
  text-anchor: middle;
  text-transform: uppercase;
}

.workflow-story-stage[data-stage="0"] .workflow-story-badge {
  color: rgba(246, 241, 232, 0.82);
}

.workflow-story-stage[data-stage="3"] .workflow-story-badge {
  border-color: rgba(36, 199, 239, 0.22);
  box-shadow: 0 0 24px rgba(36, 199, 239, 0.14);
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(17, 23, 20, 0.08);
  box-shadow: var(--shadow);
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.feature-card:hover,
.feature-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 28px 82px rgba(14, 20, 17, 0.15);
  border-color: rgba(36, 199, 239, 0.22);
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(17, 23, 20, 0.05);
  border: 1px solid rgba(17, 23, 20, 0.08);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(17, 23, 20, 0.62);
}

.feature-card p {
  color: rgba(17, 23, 20, 0.64);
  margin-top: 0.9rem;
}

.feature-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.feature-meta span {
  color: rgba(17, 23, 20, 0.65);
  background: rgba(17, 23, 20, 0.045);
  border-color: rgba(17, 23, 20, 0.08);
}

.memory-panel {
  padding: clamp(1.8rem, 4vw, 2.4rem);
  border-radius: 36px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 20rem),
    linear-gradient(180deg, rgba(17, 17, 17, 0.98), rgba(28, 28, 28, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-inverse);
  box-shadow: var(--shadow-strong);
}

.memory-panel .section-label {
  color: rgba(246, 241, 232, 0.54);
}

.memory-panel .section-heading {
  margin-bottom: 2rem;
  max-width: 54rem;
}

.memory-panel .section-heading p {
  color: rgba(246, 241, 232, 0.66);
}

.timeline-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1rem;
}

.timeline-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  min-height: 100%;
  padding: 1.15rem 1.1rem 1.2rem;
  border-radius: 26px;
  background:
    radial-gradient(circle at top left, rgba(111, 234, 243, 0.14), transparent 10rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: visible;
}

.timeline-card::before {
  content: "";
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(111, 234, 243, 0.26), rgba(255, 255, 255, 0.02));
}

.timeline-step {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-top: 0.3rem;
}

.timeline-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  padding: 0.28rem 0.48rem;
  border-radius: 999px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: rgba(246, 241, 232, 0.8);
  background: rgba(36, 199, 239, 0.14);
  border: 1px solid rgba(36, 199, 239, 0.18);
}

.stat-label {
  min-width: 0;
  color: rgba(246, 241, 232, 0.58);
}

.timeline-card h3 {
  margin: 0;
  max-width: 10ch;
}

.timeline-card p {
  margin: 0;
  color: rgba(246, 241, 232, 0.64);
}

.stack-grid {
  grid-template-columns: minmax(0, 1.16fr) minmax(300px, 0.84fr);
  align-items: stretch;
}

.stack-proxy-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2rem);
  border-radius: 36px;
  color: var(--text-inverse);
  background:
    radial-gradient(circle at 16% 52%, rgba(255, 255, 255, 0.08), transparent 18rem),
    radial-gradient(circle at 84% 18%, rgba(255, 255, 255, 0.06), transparent 18rem),
    linear-gradient(180deg, #101010 0%, #1a1a1a 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-strong);
}

.stack-proxy-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.42), transparent 100%);
  pointer-events: none;
  opacity: 0.4;
}

.stack-proxy-intro,
.stack-route-diagram {
  position: relative;
  z-index: 1;
}

.stack-proxy-intro {
  max-width: 38rem;
}

.stack-proxy-intro h3 {
  margin: 0.7rem 0 0;
  max-width: 12ch;
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.stack-proxy-intro p:last-child {
  margin: 1rem 0 0;
  max-width: 39rem;
  color: rgba(246, 241, 232, 0.68);
  line-height: 1.75;
}

.stack-route-diagram {
  width: min(100%, 47rem);
  min-height: 36rem;
  margin-top: 1.8rem;
}

.stack-route-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.stack-route-path {
  fill: none;
  stroke: rgba(163, 204, 255, 0.42);
  stroke-width: 2.1;
  stroke-linecap: round;
  stroke-dasharray: 7 11;
  animation: route-flow 15s linear infinite;
}

.stack-route-path.is-mixed {
  stroke: rgba(255, 196, 121, 0.36);
}

.stack-route-path.is-local {
  stroke: rgba(36, 199, 239, 0.4);
}

.stack-route-path:nth-child(2) {
  animation-delay: -3s;
}

.stack-route-path:nth-child(3) {
  animation-delay: -6s;
}

.stack-route-path:nth-child(4) {
  animation-delay: -9s;
}

.stack-route-path:nth-child(5) {
  animation-delay: -12s;
}

.stack-hub {
  position: absolute;
  left: 0.8rem;
  bottom: 1rem;
  width: 15.5rem;
  display: grid;
  justify-items: center;
  gap: 1rem;
}

.stack-hub-core {
  position: relative;
  width: clamp(6.6rem, 14vw, 8.8rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 32%, rgba(255, 255, 255, 0.98), rgba(206, 227, 255, 0.88) 22%, rgba(132, 180, 255, 0.92) 56%, rgba(82, 132, 230, 0.96) 100%);
  box-shadow:
    0 0 0 16px rgba(118, 169, 255, 0.08),
    0 0 0 34px rgba(118, 169, 255, 0.04),
    0 22px 70px rgba(48, 93, 180, 0.38);
  animation: hub-breath 5.2s ease-in-out infinite;
}

.stack-hub-core::before {
  content: "";
  position: absolute;
  inset: 19%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.24) 70%, transparent 72%);
  opacity: 0.62;
}

.stack-hub-core::after {
  content: "";
  position: absolute;
  inset: -14%;
  border-radius: 50%;
  border: 1px solid rgba(180, 219, 255, 0.26);
  animation: hub-ring 4.8s ease-out infinite;
}

.stack-hub-label {
  text-align: center;
}

.stack-hub-label strong {
  display: block;
  font-size: 1.42rem;
  letter-spacing: -0.04em;
}

.stack-hub-label span {
  display: block;
  margin-top: 0.25rem;
  color: rgba(246, 241, 232, 0.68);
  font-size: 0.92rem;
  line-height: 1.45;
}

.stack-providers {
  position: absolute;
  top: 0.65rem;
  right: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  width: 18rem;
  display: grid;
  gap: 0.72rem;
  align-content: start;
}

.stack-provider {
  position: relative;
  width: 100%;
  min-height: 3.2rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.72rem 0.95rem;
  border-radius: 999px;
  background: rgba(238, 245, 255, 0.94);
  border: 1px solid rgba(92, 146, 227, 0.12);
  box-shadow: 0 14px 30px rgba(20, 36, 73, 0.12);
  color: #24303a;
}

.stack-provider::before {
  content: "";
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  flex: 0 0 auto;
  background: linear-gradient(135deg, #7ab2ff, #d7eaff);
  box-shadow: 0 0 18px rgba(122, 178, 255, 0.4);
  animation: pulse 3.6s ease-in-out infinite;
}

.stack-provider strong {
  display: block;
  font-size: 0.96rem;
  letter-spacing: -0.03em;
}

.stack-provider small {
  display: block;
  margin-top: 0.14rem;
  color: rgba(36, 48, 58, 0.58);
  font-size: 0.71rem;
  line-height: 1.4;
}

.stack-provider.is-mixed {
  background: rgba(250, 238, 222, 0.97);
  border-color: rgba(255, 196, 121, 0.22);
  color: #392b1e;
}

.stack-provider.is-mixed::before {
  background: linear-gradient(135deg, var(--accent-warm), #fff0c8);
  box-shadow: 0 0 18px rgba(255, 196, 121, 0.42);
}

.stack-provider.is-local {
  background: rgba(228, 250, 252, 0.97);
  border-color: rgba(36, 199, 239, 0.18);
  color: #20333d;
}

.stack-provider.is-local::before {
  background: linear-gradient(135deg, var(--accent), #b8f3fa);
  box-shadow: 0 0 18px rgba(36, 199, 239, 0.42);
}

.stack-detail-column {
  display: grid;
  gap: 1rem;
}

.stack-note-card {
  padding: 1.35rem;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(17, 23, 20, 0.08);
  box-shadow: var(--shadow);
}

.stack-note-card p {
  margin: 0.8rem 0 0;
  color: rgba(17, 23, 20, 0.66);
  line-height: 1.65;
}

.stack-note-card h3 {
  margin: 0.65rem 0 0;
  font-size: 1.36rem;
  letter-spacing: -0.04em;
}

.stack-note-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.stack-note-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.9rem;
  padding: 0.85rem 0.95rem;
  border-radius: 20px;
  background: rgba(17, 23, 20, 0.04);
  border: 1px solid rgba(17, 23, 20, 0.08);
}

.stack-note-item strong {
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.stack-note-item span {
  max-width: 14rem;
  color: rgba(17, 23, 20, 0.58);
  font-size: 0.84rem;
  line-height: 1.45;
  text-align: right;
}

.stack-surface-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.stack-surface-row span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.8rem;
  border-radius: 999px;
  background: rgba(17, 23, 20, 0.05);
  border: 1px solid rgba(17, 23, 20, 0.08);
  color: rgba(17, 23, 20, 0.68);
  font-size: 0.86rem;
}

.stack-surface-row span::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #7ab2ff, var(--accent-warm));
  box-shadow: 0 0 12px rgba(122, 178, 255, 0.35);
}

.privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 1.2rem;
  align-items: start;
}

.privacy-copy {
  padding: 1.6rem 0;
}

.privacy-cards {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.privacy-card {
  padding: 1.35rem;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(17, 23, 20, 0.08);
  box-shadow: var(--shadow);
}

.privacy-card p {
  color: rgba(17, 23, 20, 0.63);
  margin-top: 0.85rem;
}

.cta-panel {
  padding: clamp(2rem, 6vw, 3.4rem);
  border-radius: 36px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 18rem),
    radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.06), transparent 16rem),
    linear-gradient(180deg, rgba(17, 17, 17, 0.98), rgba(28, 28, 28, 0.98));
  color: var(--text-inverse);
  box-shadow: var(--shadow-strong);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.cta-panel p {
  color: rgba(246, 241, 232, 0.68);
  max-width: 36rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.site-footer {
  padding: 0 0 2.8rem;
}

.footer-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(17, 23, 20, 0.09);
}

.footer-copy {
  color: rgba(17, 23, 20, 0.58);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  color: rgba(17, 23, 20, 0.68);
  text-decoration: none;
  transition: color 180ms ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--text);
}

.js .reveal {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 720ms cubic-bezier(0.2, 1, 0.3, 1),
    transform 720ms cubic-bezier(0.2, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

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

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -10px, 0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.18);
    opacity: 0.82;
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-50% - 0.5rem));
  }
}

@keyframes route-flow {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -180;
  }
}

@keyframes hub-breath {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04);
  }
}

@keyframes hub-ring {
  0% {
    opacity: 0;
    transform: scale(0.72);
  }
  18% {
    opacity: 0.7;
  }
  100% {
    opacity: 0;
    transform: scale(1.18);
  }
}

@media (max-width: 1180px) {
  .hero-shell,
  .privacy-grid,
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: auto;
  }

  .visual-badge {
    transform: scale(0.94);
  }

  .stack-route-diagram {
    width: 100%;
    min-height: 36rem;
  }

  .workflow-story-intro {
    flex-direction: column;
    align-items: flex-start;
  }

  .workflow-story-shell {
    grid-template-columns: 1fr;
  }

  .workflow-story-intro .step-pills {
    justify-content: flex-start;
  }

  .stack-provider {
    width: 100%;
  }
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .compact-nav {
    display: none !important;
  }

  .comparison-grid,
  .feature-grid,
  .timeline-grid,
  .privacy-cards {
    grid-template-columns: 1fr;
  }

  .step-grid {
    grid-template-columns: 1fr;
  }

  .timeline-card {
    padding: 1.1rem 1rem 1.15rem;
  }

  .footer-shell {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 860px) {
  .visual-body {
    grid-template-columns: 1fr;
  }

  .visual-badge {
    display: none;
  }

  .stack-route-diagram {
    min-height: auto;
    width: 100%;
    display: grid;
    gap: 1.2rem;
  }

  .stack-route-svg {
    display: none;
  }

  .stack-hub {
    position: relative;
    top: auto;
    left: auto;
    width: 100%;
    transform: none;
    margin: 0 auto;
  }

  .stack-providers {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    display: grid;
    gap: 0.8rem;
  }

  .stack-provider {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
  }

  .stack-note-item {
    flex-direction: column;
  }

  .stack-note-item span {
    max-width: none;
    text-align: left;
  }

  .workflow-story-visual {
    position: static;
  }

  .workflow-story-shell {
    gap: 1rem;
  }

  .workflow-story-copy {
    width: 100%;
    justify-self: stretch;
    overflow: visible;
    opacity: 1;
    transform: none;
  }

  .workflow-story-expansion-spacer {
    display: none;
  }

  .workflow-story-step {
    min-height: auto;
    padding-top: 0;
    opacity: 0.38;
    transform: none;
  }

  .workflow-story-step.is-active {
    opacity: 1;
  }

  .workflow-story-step h4 {
    max-width: 14ch;
  }

  .workflow-story-step p {
    max-width: 30rem;
  }
}

@media (max-width: 720px) {
  :root {
    --header-overlap: 8.5rem;
  }

  .shell {
    width: min(100% - 1.25rem, 1200px);
  }

  .header-shell {
    flex-wrap: wrap;
  }

  .site-header.is-compact .header-shell {
    width: min(100% - 1.25rem, 1200px);
    padding: 0.7rem 0.85rem;
  }

  .header-actions,
  .hero-actions,
  .cta-actions {
    width: 100%;
  }

  .header-actions .btn,
  .hero-actions .btn,
  .cta-actions .btn {
    flex: 1 1 100%;
  }

  .hero-proof span {
    width: 100%;
  }

  .memory-grid,
  .privacy-cards {
    grid-template-columns: 1fr;
  }

  .workflow-story-canvas,
  .workflow-story-step {
    padding: 0.9rem;
  }

  .workflow-story-copy {
    padding: 1rem 0 0;
    width: 100%;
  }

  .workflow-story-step {
    min-height: auto;
  }

  .workflow-story-stats {
    right: 0.75rem;
    bottom: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  .visual-shell {
    transform: none !important;
  }
}