:root {
  --ink: #1e1914;
  --ink-soft: #3a322b;
  --clay: #9a4630;
  --clay-deep: #7d3826;
  --clay-soft: #c46a4e;
  --brass: #b08a5b;
  --paper: #f6f1ea;
  --paper-warm: #fbf7f1;
  --stone: #ebe3d6;
  --sand: #d9cdb8;
  --white: #fdfcfa;
  --muted: #6b5f54;
  --line: rgba(30, 25, 20, 0.12);
  --dark: #231e19;
  --dark-elev: #2d2721;
  --text: #2a241e;
  --focus: #9a4630;
  --radius: 10px;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "Inter", sans-serif;
}

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

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  font-family: var(--font), system-ui, sans-serif;
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.7;
  letter-spacing: 0.012em;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(246, 241, 234, 0.92), rgba(246, 241, 234, 0.92)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  background-color: var(--paper);
  min-height: 100vh;
}

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

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

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

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.35rem, 5.6vw, 4.35rem);
  font-weight: 700;
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.85rem, 3.4vw, 2.75rem);
  max-width: 18ch;
}

h3 {
  font-size: 1.125rem;
  line-height: 1.25;
}

p {
  margin: 0 0 1rem;
  max-width: 72ch;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--white);
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.skip-link:focus {
  top: 1rem;
}

#main {
  scroll-margin-top: var(--header-h);
}

.container {
  width: min(1440px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.section {
  padding: clamp(3rem, 5.5vw, 4.5rem) 0;
  scroll-margin-top: var(--header-h);
}

.eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clay);
}

.lede {
  font-size: 1.08rem;
  color: var(--ink-soft);
}

/* Focus */
:focus {
  outline: none;
}

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

.nav-link:focus-visible,
.mobile-link:focus-visible,
.brand:focus-visible {
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 14px 22px;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 400ms var(--ease), background-color 400ms var(--ease), color 400ms var(--ease), border-color 400ms var(--ease);
}

.btn-primary {
  background: var(--clay);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--clay-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  background: rgba(30, 25, 20, 0.04);
}

.btn-arrow {
  transition: transform 400ms var(--ease);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(246, 241, 234, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  width: min(1440px, calc(100% - 2.5rem));
  margin: 0 auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.nav-shell-simple {
  justify-content: flex-start;
}

.split-nav {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}

.nav-cluster {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-cluster--left {
  justify-content: flex-start;
}

.nav-cluster--right {
  justify-content: flex-end;
}

.nav-link {
  padding: 0.45rem 0.8rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.01em;
  transition: color 300ms var(--ease), background-color 300ms var(--ease), font-weight 300ms var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--ink);
  background: rgba(154, 70, 48, 0.08);
  font-weight: 600;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.25rem;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.brand-mark {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 18px;
}

.brand-mark span {
  display: block;
  height: 2px;
  background: var(--clay);
  border-radius: 2px;
}

.brand-mark span:nth-child(1) { width: 100%; }
.brand-mark span:nth-child(2) { width: 72%; }
.brand-mark span:nth-child(3) { width: 46%; }

.brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.05rem;
  color: var(--ink);
}

.brand-suffix {
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.menu-toggle {
  display: none;
  position: absolute;
  right: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
}

.menu-toggle-bars,
.menu-toggle-bars::before,
.menu-toggle-bars::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 350ms var(--ease), opacity 350ms var(--ease);
}

.menu-toggle-bars {
  margin: 0 auto;
  position: relative;
}

.menu-toggle-bars::before,
.menu-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle-bars::before { top: -6px; }
.menu-toggle-bars::after { top: 6px; }

.menu-toggle[aria-expanded="true"] .menu-toggle-bars {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-panel {
  display: none;
}

/* Hero */
.hero {
  padding: clamp(3rem, 5.5vw, 4.5rem) 0;
  background:
    radial-gradient(ellipse at 12% 0%, rgba(176, 138, 91, 0.14), transparent 46%),
    radial-gradient(ellipse at 100% 80%, rgba(154, 70, 48, 0.08), transparent 42%),
    var(--paper-warm);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.mix-board {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.35rem 1.4rem 1.2rem;
  box-shadow: 0 18px 40px rgba(30, 25, 20, 0.06);
}

.mix-board-head {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 1.15rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.mix-kicker {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--clay);
}

.mix-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  max-width: 28ch;
  text-align: right;
  line-height: 1.45;
}

.mix-rows {
  display: grid;
  gap: 0.85rem;
}

.mix-rows li {
  display: grid;
  grid-template-columns: 8.2rem 1fr 2.4rem;
  gap: 0.7rem;
  align-items: center;
}

.mix-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.mix-track {
  height: 7px;
  background: var(--stone);
  border-radius: 99px;
  overflow: hidden;
}

.mix-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--clay), var(--brass));
  transform-origin: left center;
  transition: width 800ms var(--ease);
}

.mix-board.is-in .mix-fill {
  width: calc(var(--w) * 1%);
}

.mix-rows li:nth-child(2) .mix-fill { transition-delay: 80ms; }
.mix-rows li:nth-child(3) .mix-fill { transition-delay: 160ms; }
.mix-rows li:nth-child(4) .mix-fill { transition-delay: 240ms; }
.mix-rows li:nth-child(5) .mix-fill { transition-delay: 320ms; }
.mix-rows li:nth-child(6) .mix-fill { transition-delay: 400ms; }

.mix-value {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  text-align: right;
  letter-spacing: 0.02em;
}

/* Mix / ecosystem */
.mix {
  background: var(--stone);
}

.split {
  display: grid;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3.25rem);
}

.split-44 {
  grid-template-columns: 44fr 56fr;
}

.split-48 {
  grid-template-columns: 48fr 52fr;
}

.split-45 {
  grid-template-columns: 45fr 55fr;
}

.split-copy h2,
.brief-copy h2,
.section-intro h2 {
  margin-bottom: 1rem;
}

.constellation {
  position: relative;
  min-height: 420px;
  background: var(--paper-warm);
  border-radius: 18px;
  overflow: hidden;
}

.constellation::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 220px;
  height: 220px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(154, 70, 48, 0.16), transparent 68%);
  opacity: 0;
  pointer-events: none;
}

.constellation.is-in::before {
  animation: mix-glow 3.8s ease-in-out 0.4s infinite;
}

.constellation-svg {
  position: relative;
  width: 100%;
  height: 420px;
  overflow: visible;
}

.constellation-line,
.constellation-spark {
  stroke: var(--clay);
  stroke-width: 1.35;
  stroke-linecap: round;
  fill: none;
}

.constellation-line {
  stroke-dasharray: 220;
  stroke-dashoffset: 220;
}

.constellation.is-in .constellation-line {
  animation: draw-spoke 0.85s var(--ease) forwards;
  animation-delay: calc(0.22s + var(--i) * 0.09s);
}

.constellation-spark {
  stroke: var(--clay-soft);
  stroke-width: 2.1;
  stroke-dasharray: 14 230;
  stroke-dashoffset: 0;
  opacity: 0;
}

.constellation.is-in .constellation-spark {
  animation: spark-travel 2.6s linear infinite;
  animation-delay: calc(1.15s + var(--i) * 0.22s);
}

.constellation-node {
  fill: var(--paper-warm);
  stroke: var(--clay);
  stroke-width: 1.75;
  opacity: 0;
  transform: scale(0.35);
  transform-origin: center;
  transform-box: fill-box;
}

.constellation.is-in .constellation-node {
  animation:
    node-pop 0.5s var(--ease) forwards,
    node-breathe 2.8s ease-in-out infinite;
  animation-delay:
    calc(0.78s + var(--i) * 0.09s),
    calc(1.45s + var(--i) * 0.12s);
}

.constellation-pulse-ring {
  fill: none;
  stroke: var(--clay);
  stroke-width: 1.15;
  opacity: 0;
  transform-origin: center;
  transform-box: fill-box;
}

.constellation.is-in .constellation-pulse-ring {
  animation: ring-pulse 3.4s ease-out 1.05s infinite;
}

.constellation.is-in .constellation-pulse-ring--late {
  animation-delay: 2.75s;
}

.constellation-hub {
  transform-origin: center;
  transform-box: fill-box;
}

.constellation.is-in .constellation-hub {
  animation: hub-in 0.55s var(--ease) both, hub-breathe 3.4s ease-in-out 1.1s infinite;
}

.constellation-core-ring {
  fill: var(--paper-warm);
  stroke: var(--clay);
  stroke-width: 1.75;
}

.constellation-core-fill {
  fill: var(--clay);
  clip-path: inset(100% 0 0 0);
}

.constellation.is-in .constellation-core-fill {
  animation: core-fill 0.9s var(--ease) 0.18s forwards;
}

.constellation-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.constellation-labels li {
  position: absolute;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: rgba(253, 252, 250, 0.92);
  padding: 0.28rem 0.5rem;
  border-radius: 6px;
  opacity: 0;
}

.constellation.is-in .constellation-labels li:not(.pos-core) {
  animation: label-in 0.55s var(--ease) forwards;
}

.constellation.is-in .constellation-labels li.pos-search { animation-delay: 0.92s; }
.constellation.is-in .constellation-labels li.pos-social { animation-delay: 1.01s; }
.constellation.is-in .constellation-labels li.pos-native { animation-delay: 1.1s; }
.constellation.is-in .constellation-labels li.pos-programmatic { animation-delay: 1.19s; }
.constellation.is-in .constellation-labels li.pos-video { animation-delay: 1.28s; }
.constellation.is-in .constellation-labels li.pos-conversion { animation-delay: 1.37s; }

.constellation.is-in .pos-core {
  animation: core-label-in 0.55s var(--ease) 0.12s forwards;
}

.pos-search { top: 8%; left: 6%; }
.pos-social { top: 8%; right: 6%; }
.pos-native { top: 52%; left: 3%; }
.pos-programmatic { top: 52%; right: 2%; }
.pos-video { bottom: 8%; left: 14%; }
.pos-conversion { bottom: 8%; right: 12%; }
.pos-core {
  top: 46%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--clay);
}

/* Workstreams */
.workstreams {
  background: var(--paper);
}

.section-intro {
  margin-bottom: 2rem;
}

.workstream-list {
  display: grid;
  gap: 0.9rem;
}

.workstream {
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  padding: 1.2rem 1.3rem;
  background: var(--white);
  border: 1px solid transparent;
  border-radius: 14px;
  transition: transform 400ms var(--ease), border-color 400ms var(--ease), box-shadow 400ms var(--ease);
}

.workstream:nth-child(even) {
  margin-left: clamp(0rem, 4vw, 3.5rem);
}

.workstream:nth-child(odd) {
  margin-right: clamp(0rem, 4vw, 3.5rem);
}

.workstream:hover {
  transform: translateY(-3px);
  border-color: rgba(154, 70, 48, 0.18);
  box-shadow: 0 12px 28px rgba(30, 25, 20, 0.05);
}

.workstream-icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--clay);
  background: rgba(154, 70, 48, 0.08);
  border-radius: 10px;
  transition: transform 400ms var(--ease);
}

.workstream:hover .workstream-icon {
  transform: translateY(-2px);
}

.workstream-body {
  flex: 1;
}

.workstream-body h3 {
  margin-bottom: 0.35rem;
}

.workstream-body p {
  color: var(--ink-soft);
  margin-bottom: 0.7rem;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.channel-tags li {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--stone);
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
}

/* Method */
.method {
  background: var(--dark);
  color: #d8cfc4;
}

.method h2,
.method h3 {
  color: var(--white);
}

.method .eyebrow {
  color: #d4b483;
}

.method p {
  color: #cfc4b6;
}

.method-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.method-panel article {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.15rem 1.15rem 1.2rem;
  background: var(--dark-elev);
  border-radius: 12px;
  border: 1px solid rgba(253, 252, 250, 0.06);
}

.method-panel h3 {
  margin-bottom: 0.45rem;
  font-size: 1.02rem;
}

.method-panel p {
  font-size: 0.95rem;
  max-width: 36ch;
}

/* Brief / contact */
.brief {
  background:
    linear-gradient(180deg, var(--paper) 0 18%, var(--stone) 18% 100%);
}

.brief-copy .lede,
.brief-copy p {
  color: var(--ink-soft);
}

.contact-lines {
  margin-top: 1.6rem;
  display: grid;
  gap: 0.85rem;
}

.contact-lines li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 500;
}

.contact-lines svg {
  color: var(--clay);
  flex-shrink: 0;
}

.contact-lines a {
  transition: opacity 300ms var(--ease);
}

.contact-lines a:hover {
  opacity: 0.7;
}

.brief-form {
  display: grid;
  gap: 0.9rem;
  padding: 1.4rem;
  background: var(--white);
  border-radius: 16px;
  box-shadow: 0 20px 44px rgba(30, 25, 20, 0.08);
  margin-top: -1.75rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper-warm);
  color: var(--ink);
  border-radius: 8px;
  padding: 0.78rem 0.9rem;
  letter-spacing: 0.01em;
  transition: border-color 300ms var(--ease), background-color 300ms var(--ease);
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B5F54' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.4rem;
}

.field textarea {
  resize: vertical;
  min-height: 7rem;
}

.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  background: var(--white);
}

.btn-submit {
  width: 100%;
}

.form-status {
  min-height: 1.3rem;
  font-size: 0.92rem;
  color: var(--clay-deep);
}

.form-status.is-error {
  color: #8a2b2b;
}

/* Footer */
.site-footer {
  padding: 1.25rem 0;
  background: var(--ink);
  color: #cfc4b6;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.85rem;
}

.footer-inner p {
  margin: 0;
  max-width: 72ch;
}

.copyright {
  color: #9d9186;
  font-size: 0.88rem;
}

.legal-page {
  max-width: 68ch;
}

.legal-page h1 {
  max-width: none;
  margin-bottom: 1.2rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.text-link {
  color: var(--clay);
  font-weight: 600;
  transition: opacity 300ms var(--ease);
}

.text-link:hover {
  opacity: 0.72;
}

/* Reveals */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms var(--ease), transform 650ms var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

.workstream-list .reveal:nth-child(2) { transition-delay: 70ms; }
.workstream-list .reveal:nth-child(3) { transition-delay: 140ms; }
.workstream-list .reveal:nth-child(4) { transition-delay: 210ms; }
.workstream-list .reveal:nth-child(5) { transition-delay: 280ms; }
.workstream-list .reveal:nth-child(6) { transition-delay: 350ms; }

@keyframes draw-spoke {
  to { stroke-dashoffset: 0; }
}

@keyframes spark-travel {
  0% {
    stroke-dashoffset: 14;
    opacity: 0;
  }
  12% { opacity: 0.9; }
  70% { opacity: 0.7; }
  100% {
    stroke-dashoffset: -230;
    opacity: 0;
  }
}

@keyframes node-pop {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes node-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.18); }
}

@keyframes ring-pulse {
  0% {
    transform: scale(1);
    opacity: 0.38;
  }
  100% {
    transform: scale(2.55);
    opacity: 0;
  }
}

@keyframes hub-in {
  from {
    opacity: 0;
    transform: scale(0.55);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes hub-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

@keyframes core-fill {
  to { clip-path: inset(50% 0 0 0); }
}

@keyframes mix-glow {
  0%, 100% { opacity: 0.35; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.12); }
}

@keyframes label-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes core-label-in {
  from {
    opacity: 0;
    transform: translate(-50%, calc(-50% + 8px));
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .mix-fill,
  .mix-board.is-in .mix-fill {
    width: calc(var(--w) * 1%);
  }

  .constellation::before {
    opacity: 0.45;
    transform: translate(-50%, -50%);
  }

  .constellation-line {
    stroke-dashoffset: 0;
  }

  .constellation-spark {
    opacity: 0;
  }

  .constellation-node,
  .constellation-hub,
  .constellation-labels li,
  .pos-core {
    opacity: 1;
    transform: none;
  }

  .pos-core {
    transform: translate(-50%, -50%);
  }

  .constellation-core-fill {
    clip-path: inset(50% 0 0 0);
  }
}

/* Tablet */
@media (max-width: 980px) {
  .hero .container,
  .split-44,
  .split-48,
  .split-45 {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 14ch;
  }

  .mix-note {
    text-align: left;
  }

  .workstream:nth-child(even),
  .workstream:nth-child(odd) {
    margin: 0;
  }

  .brief-form {
    margin-top: 0;
  }
}

@media (max-width: 860px) {
  .split-nav .nav-cluster {
    display: none;
  }

  .split-nav {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .mobile-panel {
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.4rem 1.25rem 1.2rem;
    border-top: 1px solid var(--line);
    background: var(--paper);
  }

  .mobile-panel.is-open,
  .mobile-panel:not([hidden]) {
    display: flex;
  }

  .mobile-link {
    text-align: left;
    padding: 0.85rem 0.2rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--ink);
    border-radius: 8px;
  }

  .mobile-link.is-active {
    color: var(--clay);
  }

  .method-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .constellation-svg,
  .constellation::before {
    display: none;
  }

  .constellation {
    min-height: 0;
    padding: 1rem;
  }

  .constellation-labels {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }

  .constellation-labels li,
  .pos-core {
    position: static;
    transform: none;
    text-align: center;
  }

  .constellation.is-in .constellation-labels li:not(.pos-core),
  .constellation.is-in .pos-core {
    animation: label-in 0.5s var(--ease) forwards;
  }

  .constellation.is-in .constellation-labels li.pos-core { animation-delay: 0s; }
  .constellation.is-in .constellation-labels li.pos-search { animation-delay: 60ms; }
  .constellation.is-in .constellation-labels li.pos-social { animation-delay: 120ms; }
  .constellation.is-in .constellation-labels li.pos-native { animation-delay: 180ms; }
  .constellation.is-in .constellation-labels li.pos-programmatic { animation-delay: 240ms; }
  .constellation.is-in .constellation-labels li.pos-video { animation-delay: 300ms; }
  .constellation.is-in .constellation-labels li.pos-conversion { animation-delay: 360ms; }

  .pos-core {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 1rem;
  }

  .container,
  .nav-shell {
    width: min(1440px, calc(100% - 1.5rem));
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .mix-rows li {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "label value"
      "track track";
    gap: 0.35rem 0.6rem;
  }

  .mix-label { grid-area: label; }
  .mix-value { grid-area: value; }
  .mix-track { grid-area: track; }

  .workstream {
    flex-direction: column;
  }
}