:root {
  --blue: #cfe5ec;
  --ink: #050505;
  --paper: #ffffff;
  --muted: #5d6669;
  --line: #d7e3e7;
  --soft: #f4fbfd;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0;
}

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

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

.site-header {
  align-items: center;
  background: var(--blue);
  box-shadow: 0 14px 24px rgba(0, 0, 0, 0.2);
  display: flex;
  justify-content: space-between;
  min-height: 154px;
  padding: 32px clamp(24px, 7vw, 86px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand img {
  width: clamp(250px, 28vw, 360px);
}

.main-nav {
  align-items: center;
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.main-nav a {
  border-bottom: 2px solid transparent;
  padding: 8px 0;
}

.main-nav a:hover,
.main-nav a.active {
  border-color: var(--ink);
}

.menu-button {
  background: transparent;
  border: 0;
  display: none;
  height: 44px;
  padding: 6px;
  width: 48px;
}

.menu-button span {
  background: var(--ink);
  display: block;
  height: 3px;
  margin: 7px 0;
  width: 36px;
}

.page {
  min-height: 60vh;
}

.section {
  padding: clamp(54px, 8vw, 100px) clamp(24px, 7vw, 96px);
}

.section.narrow {
  max-width: 1040px;
  margin: 0 auto;
}

.hero {
  background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(244,250,252,0.9));
  min-height: 430px;
}

.hero h1,
.hero h2 {
  font-size: clamp(42px, 6vw, 82px);
  line-height: 0.96;
  margin: 0 0 38px;
}

.home-hero h2 {
  font-size: clamp(30px, 4.3vw, 58px);
  max-width: 820px;
}

.home-hero {
  align-items: center;
  display: flex;
  text-align: center;
}

.hero-inner {
  margin: 0 auto;
  max-width: 980px;
}

.home-hero h2,
.home-hero h3 {
  margin-left: auto;
  margin-right: auto;
}

.lead,
.hero h3 {
  font-size: clamp(21px, 2.4vw, 32px);
  font-weight: 700;
  line-height: 1.08;
  margin: 26px 0;
  max-width: 980px;
}

.dark-hero {
  background: #000;
  color: var(--paper);
}

.dark-hero h1,
.dark-hero h2,
.dark-hero h3 {
  color: var(--paper);
}

.ventures-hero h1,
.perspectives-hero h1 {
  color: #202427;
}

.perspectives-hero {
  min-height: 520px;
}

.perspectives-hero h1 {
  font-style: italic;
}

.media-hero {
  align-items: center;
  display: grid;
  gap: clamp(28px, 5vw, 72px);
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
}

.media-hero img {
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  object-fit: cover;
  width: min(100%, 360px);
}

.partners-hero {
  align-items: center;
  background: var(--blue);
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.partners-hero h1,
.partners-hero h3 {
  margin-left: auto;
  margin-right: auto;
}

.partners-hero h1 {
  margin-bottom: 28px;
}

.partners-hero h3 {
  max-width: 820px;
}

.perspectives-hero h2 {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.08;
  max-width: 760px;
}

.body-copy {
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.42;
}

.image-band {
  align-items: center;
  background-position: center;
  background-size: cover;
  display: flex;
  min-height: 350px;
  padding: 60px 24px;
}

.image-band h2,
.image-band h1 {
  color: var(--ink);
  font-size: clamp(48px, 7vw, 96px);
  margin: 0 auto;
  text-align: center;
}

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

.visual-tile {
  align-items: center;
  background-position: center;
  background-size: cover;
  display: flex;
  min-height: clamp(330px, 45vw, 590px);
  padding: clamp(28px, 5vw, 70px);
}

.visual-tile h1 {
  color: var(--ink);
  font-size: clamp(44px, 7vw, 94px);
  margin: auto;
  text-align: center;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 10px;
}

.insight-teaser {
  align-items: center;
  display: flex;
  gap: 34px;
  justify-content: space-between;
}

.insight-teaser h2 {
  font-size: clamp(36px, 5vw, 72px);
  line-height: 0.98;
  margin: 0 0 18px;
}

.insight-teaser h3 {
  font-size: clamp(18px, 2vw, 28px);
  line-height: 1.12;
  margin: 0;
  max-width: 760px;
}

.arbital-section {
  background: var(--blue);
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
}

.arbital-copy h2 {
  font-size: clamp(32px, 4.5vw, 64px);
  line-height: 1;
  margin: 0 0 24px;
}

.arbital-copy h3 {
  font-size: clamp(21px, 2.5vw, 34px);
  line-height: 1.12;
  margin: 0 0 28px;
}

.video-embed {
  background: #000;
  min-height: 520px;
  overflow: hidden;
}

.video-embed iframe {
  border: 0;
  height: 100%;
  min-height: 520px;
  width: 100%;
}

.split {
  align-items: center;
  display: grid;
  gap: 44px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
}

.callout {
  background: var(--soft);
}

.cta {
  border: 2px solid var(--ink);
  display: inline-block;
  font-size: 17px;
  font-weight: 700;
  margin-top: 20px;
  padding: 15px 28px;
}

.cta:hover {
  background: var(--ink);
  color: var(--paper);
}

.grid {
  display: grid;
  gap: 32px;
}

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

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

.card {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.card h3,
.card h2 {
  font-size: clamp(22px, 2.1vw, 31px);
  line-height: 1.08;
  margin: 0 0 14px;
}

.card p,
.card li {
  color: #111;
  font-size: 17px;
  line-height: 1.42;
}

.partners-list {
  max-width: none;
}

.partner-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 1160px;
}

.partner-grid > .partner-card {
  grid-column: span 2;
}

.partner-grid > .partner-card:nth-last-child(2):nth-child(3n + 1) {
  grid-column: 2 / span 2;
}

.partner-grid > .partner-card:last-child:nth-child(3n + 1) {
  grid-column: 3 / span 2;
}

.partner-card {
  border-top: 0;
  display: flex;
  flex-direction: column;
}

.logo-wrap {
  align-items: center;
  display: flex;
  min-height: clamp(110px, 16vw, 170px);
  justify-content: center;
  margin-bottom: 22px;
  padding: clamp(4px, 1.6vw, 18px) 0;
  width: 100%;
}

.logo-wrap.logo-dark {
  background: transparent;
}

.logo-wrap img {
  height: auto;
  max-height: clamp(88px, 12vw, 150px);
  object-fit: contain;
  width: min(100%, clamp(150px, 32vw, 280px));
}

.partner-card.promptwell .logo-wrap img {
  filter: brightness(0) saturate(100%) invert(18%) sepia(50%) saturate(1494%) hue-rotate(176deg) brightness(88%) contrast(98%);
}

.partner-card .cta {
  align-self: flex-start;
  margin-top: auto;
}

.completed-projects {
  background: var(--paper);
}

.completed-projects h2 {
  font-size: clamp(34px, 4.6vw, 64px);
  margin: 0 auto 48px;
  max-width: 1160px;
}

.logo-card,
.person,
.post-card {
  border-top: 0;
}

.logo-card img {
  background: #f7fbfc;
  height: 160px;
  margin-bottom: 18px;
  object-fit: contain;
  padding: 20px;
  width: 100%;
}

.person img {
  aspect-ratio: 1 / 1;
  filter: grayscale(10%);
  object-fit: cover;
  width: 100%;
}

.person h3 {
  font-size: 22px;
  margin-top: 18px;
}

.person h3 a {
  border-bottom: 1px solid transparent;
}

.person h3 a:hover {
  border-color: currentColor;
}

.person p {
  margin: 8px 0;
}

.dark {
  background: #000;
  color: var(--paper);
}

.dark .card,
.dark p,
.dark li,
.dark a {
  color: var(--paper);
}

.dark .card {
  border-color: #242424;
}

.stats {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 40px;
}

.stat {
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}

.stat strong {
  display: block;
  font-size: clamp(24px, 3vw, 44px);
}

.timeline img,
.wide-image {
  margin: 38px auto;
  width: min(100%, 1040px);
}

.blog-list {
  display: grid;
  gap: 34px;
  margin-top: 56px;
}

.post-card {
  align-items: center;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  padding-top: 34px;
}

.post-image {
  background: var(--soft);
  display: block;
  overflow: hidden;
}

.post-image img {
  aspect-ratio: 1.25 / 1;
  object-fit: cover;
  width: 100%;
}

.post-meta {
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
}

.post-card h2 {
  font-size: clamp(24px, 3vw, 42px);
  line-height: 1.05;
  margin: 0;
}

.article {
  max-width: 900px;
}

.article h1 {
  font-size: clamp(36px, 4.5vw, 62px);
  line-height: 1.02;
}

.article-image {
  aspect-ratio: 16 / 9;
  margin: 0 0 42px;
  object-fit: cover;
  width: 100%;
}

.article h3 {
  font-size: 25px;
  margin-top: 34px;
}

.article p,
.article li {
  font-size: 19px;
  line-height: 1.55;
}

.article blockquote {
  border-left: 4px solid var(--ink);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.22;
  margin: 34px 0;
  padding-left: 24px;
}

.media-list {
  max-width: 1180px;
}

.events-list {
  display: grid;
  gap: clamp(38px, 6vw, 74px);
}

.media-card {
  background: #fff;
  border-top: 1px solid var(--line);
  display: grid;
  gap: clamp(24px, 4.5vw, 54px);
  grid-template-columns: minmax(260px, 0.55fr) minmax(0, 1fr);
  padding-top: clamp(28px, 4vw, 46px);
}

.media-card.featured-event {
  align-items: start;
}

.event-media {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.media-frame {
  align-items: center;
  background: var(--soft);
  display: grid;
  gap: 14px;
  justify-items: center;
  padding: clamp(10px, 2vw, 18px);
  width: 100%;
}

.media-frame img {
  height: auto;
  max-height: clamp(260px, 36vw, 460px);
  object-fit: contain;
  width: 100%;
}

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

.media-gallery img {
  aspect-ratio: 4 / 3;
  max-height: none;
  object-fit: cover;
}

.media-logos {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.media-logos img {
  background: #fff;
  border: 1px solid var(--line);
  height: auto;
  max-height: 72px;
  max-width: min(220px, 100%);
  object-fit: contain;
  padding: 12px 14px;
}

.event-embed {
  background: #000;
  min-height: clamp(440px, 52vw, 620px);
  overflow: hidden;
  width: 100%;
}

.event-embed iframe {
  border: 0;
  height: 100%;
  min-height: inherit;
  width: 100%;
}

.media-card-copy {
  padding: 2px 0 6px;
}

.media-card h3 {
  font-size: clamp(25px, 3vw, 42px);
  line-height: 1.04;
  margin: 0 0 14px;
}

.media-card h4 {
  font-size: clamp(18px, 1.7vw, 24px);
  line-height: 1.18;
  margin: 0 0 16px;
}

.media-card p {
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.48;
  margin: 0;
}

.media-card p a {
  border-bottom: 1px solid currentColor;
  font-weight: 700;
}

.contact-section {
  background: #fff;
  display: grid;
  gap: 34px;
  justify-items: center;
}

.contact-intro {
  max-width: 760px;
  text-align: center;
}

.contact-intro h2 {
  font-size: clamp(42px, 5.5vw, 78px);
  line-height: 1;
  margin: 0 0 22px;
}

.contact-intro p {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.25;
  margin: 14px 0;
}

.contact-form {
  background: var(--blue);
  border-radius: 70px 70px 0 0;
  display: grid;
  gap: 18px;
  max-width: 900px;
  padding: clamp(28px, 5vw, 54px);
  width: min(100%, 980px);
}

.contact-form .cta {
  background: #000;
  color: #fff;
  justify-self: start;
}

.name-row {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-group-title,
fieldset legend {
  font-size: 20px;
  margin: 0;
}

label {
  display: grid;
  font-size: 16px;
  font-weight: 400;
  gap: 8px;
}

input,
select,
textarea {
  background: transparent;
  border: 1px solid #111;
  font: inherit;
  min-height: 48px;
  padding: 12px;
}

select {
  appearance: auto;
}

textarea {
  min-height: 160px;
}

.topic-field {
  border: 0;
  display: grid;
  gap: 14px;
  margin: 4px 0;
  padding: 0;
}

.topic-field label {
  align-items: center;
  display: flex;
  gap: 12px;
}

.topic-field input {
  accent-color: #111;
  min-height: auto;
  width: 16px;
}

.site-footer {
  background: var(--blue);
  padding: 52px clamp(24px, 7vw, 96px);
}

.footer-grid {
  display: flex;
  gap: 48px;
  justify-content: space-between;
}

.footer-links {
  display: grid;
  gap: 12px;
}

.footer-links a,
.social {
  font-weight: 700;
  text-decoration: underline;
}

.copyright {
  margin-top: 42px;
}

@media (max-width: 860px) {
  .site-header {
    min-height: 154px;
  }

  .brand img {
    width: 260px;
  }

  .menu-button {
    display: block;
  }

  .main-nav {
    background: var(--blue);
    box-shadow: 0 18px 22px rgba(0, 0, 0, 0.14);
    display: none;
    flex-direction: column;
    gap: 14px;
    left: 0;
    padding: 20px 24px 28px;
    position: absolute;
    right: 0;
    top: 100%;
  }

  .main-nav.open {
    display: flex;
  }

  .split,
  .grid.two,
  .grid.three,
  .visual-links,
  .arbital-section,
  .media-hero,
  .post-card,
  .stats,
  .name-row {
    grid-template-columns: 1fr;
  }

  .media-hero {
    align-items: flex-start;
  }

  .media-hero img {
    width: 230px;
  }

  .media-card {
    grid-template-columns: 1fr;
  }

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

  .partner-grid > .partner-card,
  .partner-grid > .partner-card:nth-last-child(2):nth-child(3n + 1),
  .partner-grid > .partner-card:last-child:nth-child(3n + 1) {
    grid-column: 1;
  }

  .media-gallery {
    grid-template-columns: 1fr;
  }

  .media-frame img {
    max-height: 420px;
  }

  .event-embed {
    min-height: 420px;
  }

  .insight-teaser {
    align-items: flex-start;
    display: grid;
  }

  .visual-tile,
  .video-embed,
  .video-embed iframe {
    min-height: 330px;
  }

  .hero {
    min-height: auto;
  }

  .footer-grid {
    display: grid;
  }
}