:root {
  --bg: #070b11;
  --bg-soft: #0c121a;
  --surface: rgba(14, 20, 30, 0.84);
  --surface-strong: rgba(18, 26, 38, 0.94);
  --border: rgba(113, 136, 173, 0.16);
  --border-strong: rgba(113, 136, 173, 0.28);
  --text: #f3f7fb;
  --text-muted: #9ca8ba;
  --text-soft: #c8d1de;
  --accent: #7dd3fc;
  --accent-strong: #a5f3fc;
  --signal: #9b8cff;
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.22);
  --shadow-strong: 0 26px 90px rgba(0, 0, 0, 0.32);
  --radius-sm: 0.9rem;
  --radius-md: 1.3rem;
  --radius-lg: 2rem;
  --container: 74rem;
  --container-narrow: 52rem;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 15%, rgba(125, 211, 252, 0.08), transparent 24%),
    radial-gradient(circle at 85% 18%, rgba(155, 140, 255, 0.08), transparent 22%),
    linear-gradient(180deg, #060a10 0%, #070b11 50%, #0a1118 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  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: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.62), transparent 88%);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -3rem;
  z-index: 200;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #041018;
  font-weight: 800;
}

.skip-link:focus {
  top: var(--space-3);
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 2rem), var(--container-narrow));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(5, 9, 14, 0.55);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 5rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand__name,
h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
}

.brand__name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand__role {
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.site-nav a {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 180ms ease;
}

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

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0.25rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  margin: 0.3rem 0;
  background: var(--text);
  border-radius: 999px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--small {
  min-height: 2.7rem;
  padding: 0.68rem 1rem;
}

.button--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #041018;
}

.button--ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.hero,
.page-intro {
  padding: var(--space-8) 0 var(--space-7);
}

.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
  gap: var(--space-6);
  align-items: center;
}

.hero__copy {
  max-width: 42rem;
}

.hero__copy h1 {
  max-width: 11ch;
}

.hero h1,
.page-intro h1 {
  margin: 0;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
  line-height: 1.02;
  letter-spacing: -0.06em;
}

.lead {
  margin-top: var(--space-4);
  max-width: 40rem;
  color: var(--text-soft);
  font-size: 1.1rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 var(--space-3);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 1.8rem;
  height: 1px;
  background: currentColor;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.5rem;
  margin-top: var(--space-5);
  color: var(--text-muted);
  font-size: 0.94rem;
}

.hero__meta p {
  margin: 0;
}

.hero__visual {
  position: relative;
}

.section--compact {
  padding-top: 0;
}

.summary-strip,
.home-projects {
  display: grid;
  gap: var(--space-4);
}

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

.summary-pill,
.home-project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(18, 26, 38, 0.78), rgba(10, 16, 24, 0.72));
  box-shadow: var(--shadow-soft);
}

.summary-pill {
  padding: 1.35rem 1.4rem;
}

.summary-pill h2,
.home-project-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  line-height: 1.2;
}

.summary-pill p,
.home-project-card p {
  margin: 0;
  color: var(--text-muted);
}

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

.home-project-card {
  padding: var(--space-5);
}

.home-project-card .text-link {
  margin-top: 1rem;
}

.ai-orbit {
  position: relative;
  min-height: 27rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  aspect-ratio: 1;
  max-width: 28rem;
  margin-inline: auto;
  background:
    radial-gradient(circle at center, rgba(125, 211, 252, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(18, 26, 38, 0.78), rgba(10, 16, 24, 0.72));
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.ai-orbit__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.3;
}

.ai-orbit__ring,
.ai-orbit__core {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.ai-orbit__ring {
  border: 1px solid rgba(125, 211, 252, 0.18);
}

.ai-orbit__ring--outer {
  width: 84%;
  height: 84%;
  animation: spin-slow 20s linear infinite;
}

.ai-orbit__ring--middle {
  width: 58%;
  height: 58%;
  border-style: dashed;
  animation: spin-reverse 16s linear infinite;
}

.ai-orbit__ring--inner {
  width: 34%;
  height: 34%;
  border-color: rgba(155, 140, 255, 0.24);
  animation: pulse-ring 4s ease-in-out infinite;
}

.ai-orbit__core {
  width: 18%;
  height: 18%;
  background: radial-gradient(circle, rgba(165, 243, 252, 0.92), rgba(125, 211, 252, 0.14));
  box-shadow: 0 0 40px rgba(125, 211, 252, 0.18);
}

.ai-orbit__node {
  position: absolute;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--accent-strong);
  box-shadow: 0 0 20px rgba(125, 211, 252, 0.24);
}

.ai-orbit__node--one {
  top: 19%;
  left: 50%;
  animation: float-node 6s ease-in-out infinite;
}

.ai-orbit__node--two {
  top: 49%;
  right: 15%;
  animation: float-node 7s ease-in-out infinite 0.4s;
}

.ai-orbit__node--three {
  bottom: 18%;
  left: 28%;
  animation: float-node 6.6s ease-in-out infinite 0.8s;
}

.ai-orbit__node--four {
  top: 34%;
  left: 18%;
  background: rgba(155, 140, 255, 0.92);
  animation: float-node 7.4s ease-in-out infinite 1.1s;
}

.ai-orbit__label {
  position: absolute;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  width: calc(100% - 2.4rem);
}

.ai-orbit__label span {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(125, 211, 252, 0.14);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  font-size: 0.78rem;
}

.signal-panel {
  position: relative;
  min-height: 31rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(18, 26, 38, 0.94), rgba(10, 16, 24, 0.88));
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.signal-panel__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.45;
}

.signal-panel__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.signal-panel__lines path {
  fill: none;
  stroke: rgba(125, 211, 252, 0.54);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-dasharray: 10 12;
  animation: signal-drift 16s linear infinite;
}

.signal-panel__lines path:nth-child(2) {
  stroke: rgba(155, 140, 255, 0.42);
  animation-duration: 20s;
}

.signal-panel__lines path:nth-child(3) {
  stroke: rgba(165, 243, 252, 0.34);
  animation-duration: 13s;
}

.signal-panel__cluster {
  position: absolute;
}

.signal-panel__cluster span {
  position: absolute;
  display: block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(165, 243, 252, 1), rgba(125, 211, 252, 0.1));
  box-shadow: 0 0 18px rgba(125, 211, 252, 0.18);
  animation: pulse 5.8s ease-in-out infinite;
}

.signal-panel__cluster--one {
  inset: 18% auto auto 16%;
}

.signal-panel__cluster--two {
  inset: auto 14% 16% auto;
}

.signal-panel__cluster--one span:nth-child(1) { left: 0; top: 0; }
.signal-panel__cluster--one span:nth-child(2) { left: 3.8rem; top: 2rem; }
.signal-panel__cluster--one span:nth-child(3) { left: 7rem; top: -0.6rem; }
.signal-panel__cluster--one span:nth-child(4) { left: 9.2rem; top: 3rem; }

.signal-panel__cluster--two span:nth-child(1) { left: 0; top: 0; }
.signal-panel__cluster--two span:nth-child(2) { left: 2.7rem; top: -2rem; }
.signal-panel__cluster--two span:nth-child(3) { left: 5rem; top: 1.6rem; }
.signal-panel__cluster--two span:nth-child(4) { left: 7.5rem; top: -0.8rem; }
.signal-panel__cluster--two span:nth-child(5) { left: 10rem; top: 2.4rem; }

.signal-panel__caption {
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.signal-panel__caption span {
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(125, 211, 252, 0.16);
  border-radius: 999px;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.86rem;
}

.section {
  padding: var(--space-7) 0;
}

.section--featured {
  border-top: 1px solid rgba(113, 136, 173, 0.08);
}

.section--focus {
  border-top: 1px solid rgba(113, 136, 173, 0.08);
}

.section-heading {
  max-width: 42rem;
  margin-bottom: var(--space-5);
}

.section-heading h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1.08;
}

.section-heading p {
  color: var(--text-muted);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.project-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.92fr);
  gap: var(--space-4);
  align-items: start;
}

.project-showcase > .project-support-card {
  grid-column: 1 / -1;
}

.feature-card,
.pillar,
.surface-card,
.site-footer__inner,
.page-intro .narrow {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(18, 26, 38, 0.82), rgba(12, 18, 26, 0.74));
  box-shadow: var(--shadow-soft);
}

.feature-card,
.pillar,
.surface-card {
  padding: var(--space-5);
}

.project-spotlight,
.project-support-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(18, 26, 38, 0.84), rgba(10, 16, 24, 0.78));
  box-shadow: var(--shadow-soft);
}

.project-spotlight {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
}

.project-spotlight--analysis {
  align-self: stretch;
}

.project-spotlight__content h3,
.project-support-card h3,
.project-case h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
  line-height: 1.08;
}

.project-support-card {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
}

.artifact-window {
  margin: 0;
  border: 1px solid rgba(125, 211, 252, 0.12);
  border-radius: calc(var(--radius-md) + 0.2rem);
  background: rgba(7, 11, 17, 0.86);
  overflow: hidden;
}

.artifact-window--placeholder {
  min-height: 100%;
}

.artifact-window__body {
  display: grid;
  gap: 0.9rem;
  padding: 1.2rem;
}

.artifact-window__eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.artifact-window__body h4 {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.25;
}

.artifact-meta {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding-left: 1rem;
  color: var(--text-muted);
}

.artifact-window img {
  width: 100%;
  object-fit: cover;
}

.artifact-window figcaption {
  padding: 0.9rem 1rem 1rem;
  color: var(--text-muted);
  font-size: 0.86rem;
  border-top: 1px solid rgba(125, 211, 252, 0.08);
}

.artifact-window--compact img {
  aspect-ratio: 4 / 3;
}

.artifact-window--inline {
  max-width: 42rem;
}

.case-study-list {
  gap: var(--space-5);
}

.project-case {
  display: grid;
  gap: var(--space-5);
}

.project-case__header,
.project-case__intro {
  display: grid;
  gap: var(--space-4);
}

.project-case__header {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

.project-case__intro {
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  align-items: start;
}

.project-case__summary > p:first-child {
  margin-top: 0;
  color: var(--text-soft);
  font-size: 1.03rem;
}

.micro-module {
  padding-top: var(--space-4);
  border-top: 1px solid rgba(113, 136, 173, 0.14);
}

.micro-module__header {
  max-width: 40rem;
  margin-bottom: var(--space-4);
}

.micro-module__header h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.micro-module__header p {
  margin: 0;
  color: var(--text-muted);
}

.tab-controls,
.flow-nodes,
.evidence-lanes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tab-button,
.flow-node,
.evidence-lane {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-soft);
  padding: 0.7rem 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.tab-button:hover,
.tab-button:focus-visible,
.flow-node:hover,
.flow-node:focus-visible,
.evidence-lane:hover,
.evidence-lane:focus-visible {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  color: var(--text);
}

.tab-button.is-active,
.flow-node.is-active,
.evidence-lane.is-active {
  color: #041018;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.tab-panels,
.flow-panels {
  margin-top: var(--space-4);
}

.tab-panel,
.flow-panel {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}

.tab-panel > p:first-child,
.flow-panel > p:first-child,
.flow-panel > h4 {
  margin-top: 0;
}

.artifact-strip {
  display: grid;
  gap: var(--space-4);
}

.contribution-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-soft);
}

.contribution-list li + li {
  margin-top: 0.8rem;
}

.flow-explorer__layout {
  display: grid;
  grid-template-columns: minmax(15rem, 0.72fr) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.flow-nodes,
.evidence-lanes {
  align-items: start;
}

.flow-nodes {
  flex-direction: column;
}

.flow-node {
  text-align: left;
  border-radius: var(--radius-sm);
}

.flow-panel h4 {
  margin-bottom: 0.65rem;
  font-size: 1rem;
}

.evidence-lanes {
  margin-bottom: var(--space-4);
}

.feature-card__label {
  margin-bottom: var(--space-3);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature-card h3,
.pillar h3 {
  margin-top: 0;
  margin-bottom: 0.85rem;
  font-size: 1.35rem;
  line-height: 1.15;
}

.feature-card p,
.pillar p,
.surface-card p,
.site-footer__summary,
.footer-contact p {
  color: var(--text-muted);
}

.feature-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.2rem 0 1rem;
}

.feature-card__meta span {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.14);
  color: var(--text-soft);
  font-size: 0.84rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--accent);
  font-weight: 700;
}

.text-link::after {
  content: "->";
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.page-intro .narrow {
  padding: var(--space-5);
}

.page-intro {
  padding: var(--space-7) 0 var(--space-6);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
  gap: var(--space-4);
}

.stack-list {
  display: grid;
  gap: var(--space-4);
}

.case-study__grid,
.three-up,
.contact-grid,
.card-grid {
  display: grid;
  gap: var(--space-4);
}

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

.three-up,
.contact-grid,
.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card__tag {
  margin: 0 0 var(--space-3);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.key-points,
.meta-list,
.tag-list {
  color: var(--text-muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.12);
}

.site-footer {
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(113, 136, 173, 0.08);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-5);
  padding: var(--space-5);
}

.footer-block .eyebrow {
  margin-bottom: var(--space-2);
}

.footer-nav {
  display: grid;
  gap: 0.75rem;
}

.footer-nav a,
.footer-contact a {
  color: var(--text-muted);
}

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

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 460ms ease, transform 460ms ease;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@keyframes signal-drift {
  0% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: -120;
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.45);
    opacity: 0.45;
  }
}

@keyframes spin-slow {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spin-reverse {
  from {
    transform: translate(-50%, -50%) rotate(360deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(0deg);
  }
}

@keyframes pulse-ring {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.72;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.06);
    opacity: 1;
  }
}

@keyframes float-node {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -8px, 0);
  }
}

@media (max-width: 62rem) {
  .hero__layout,
  .feature-list,
  .project-showcase,
  .pillar-grid,
  .summary-strip,
  .home-projects,
  .split-layout,
  .site-footer__inner,
  .three-up,
  .contact-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .header-cta {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(9, 14, 21, 0.98);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-header.is-nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-header.is-nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(0.56rem) rotate(45deg);
  }

  .site-header.is-nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-0.56rem) rotate(-45deg);
  }

  .nav-toggle {
    display: inline-block;
  }

  .project-case__header,
  .project-case__intro,
  .flow-explorer__layout,
  .project-support-card {
    grid-template-columns: 1fr;
  }

  .project-support-card {
    align-items: start;
  }
}

@media (max-width: 48rem) {
  .hero,
  .page-intro {
    padding: var(--space-7) 0 var(--space-6);
  }

  .section {
    padding: var(--space-6) 0;
  }

  .feature-card,
  .pillar,
  .surface-card,
  .site-footer__inner,
  .page-intro .narrow,
  .signal-panel {
    padding: var(--space-4);
  }

  .signal-panel {
    min-height: 24rem;
  }

  .ai-orbit {
    min-height: 20rem;
    max-width: 22rem;
  }

  .case-study__grid {
    grid-template-columns: 1fr;
  }

  .project-spotlight,
  .project-support-card {
    padding: var(--space-4);
  }

  .tab-controls,
  .flow-nodes,
  .evidence-lanes {
    gap: 0.65rem;
  }

  .tab-button,
  .flow-node,
  .evidence-lane {
    width: 100%;
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }
}