:root {
  color-scheme: light;
  --ink: #17211f;
  --muted-ink: #52615f;
  --soft-ink: #71807d;
  --paper: #fbfaf6;
  --mist: #eef4f0;
  --line: #d7e1dd;
  --green: #1d6b54;
  --green-deep: #0f4235;
  --teal: #1c8a8d;
  --coral: #d75b45;
  --gold: #c38b2c;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(29, 64, 54, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  align-items: center;
  background: rgba(251, 250, 246, 0.9);
  border-bottom: 1px solid rgba(215, 225, 221, 0.85);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  left: 0;
  min-height: 72px;
  padding: 0 40px;
  position: sticky;
  right: 0;
  top: 0;
  backdrop-filter: blur(16px);
  z-index: 20;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  background:
    linear-gradient(135deg, var(--green), var(--teal) 55%, var(--coral));
  border-radius: 12px;
  display: inline-block;
  height: 30px;
  position: relative;
  width: 30px;
}

.brand-mark::after {
  border: 2px solid rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  content: "";
  height: 10px;
  left: 8px;
  position: absolute;
  top: 8px;
  width: 10px;
}

.site-nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--muted-ink);
  font-size: 0.93rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--green);
}

.nav-toggle {
  background: transparent;
  border: 0;
  display: none;
  height: 42px;
  padding: 8px;
  width: 42px;
}

.nav-toggle span {
  background: var(--ink);
  border-radius: 999px;
  display: block;
  height: 2px;
  margin: 6px 0;
  width: 24px;
}

.hero {
  background: linear-gradient(180deg, var(--green-deep) 0%, #143f35 100%);
  min-height: calc(100vh - 72px);
  overflow: hidden;
  padding: 84px 40px 64px;
  position: relative;
}

.hero::before,
.hero::after {
  content: "";
  inset: 0;
  position: absolute;
  z-index: 0;
}

.hero::before {
  background: linear-gradient(90deg, rgba(15, 66, 53, 0.96) 0%, rgba(15, 66, 53, 0.86) 48%, rgba(15, 66, 53, 0.54) 100%);
}

.hero::after {
  background-image: url("assets/agent-in-world-concept.png");
  background-position: center right;
  background-repeat: no-repeat;
  background-size: cover;
  filter: saturate(0.85) contrast(0.94);
  opacity: 0.18;
}

.hero-content {
  color: var(--white);
  max-width: 1120px;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(3rem, 8vw, 6.6rem);
  letter-spacing: 0;
  line-height: 0.96;
  margin: 14px 0 22px;
  max-width: 960px;
}

.hero-copy {
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  max-width: 760px;
}

.eyebrow {
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin: 0 0 10px;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffd7b2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0;
}

.button {
  border-radius: 999px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-width: 140px;
  padding: 13px 20px;
  text-decoration: none;
}

.button.primary {
  background: var(--coral);
  color: var(--white);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: var(--white);
}

.event-facts {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 180px));
  margin: 54px 0 0;
  max-width: 640px;
}

.event-facts div {
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 18px;
}

.event-facts dt {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.event-facts dd {
  font-size: 1.05rem;
  font-weight: 800;
  margin: 4px 0 0;
}

.world-grid {
  bottom: 30px;
  display: none;
  gap: 12px;
  grid-template-columns: repeat(4, 72px);
  position: absolute;
  right: clamp(18px, 7vw, 110px);
  transform: rotate(-8deg);
  z-index: 1;
}

.world-grid span {
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.36);
  border: 1px solid rgba(15, 66, 53, 0.16);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.world-grid span:nth-child(3n) {
  background: rgba(215, 91, 69, 0.24);
}

.world-grid span:nth-child(4n) {
  background: rgba(29, 107, 84, 0.28);
}

.section {
  margin: 0 auto;
  max-width: 1180px;
  padding: 86px 40px;
}

.section.muted {
  background: var(--mist);
  max-width: none;
  padding-left: max(40px, calc((100vw - 1100px) / 2 + 40px));
  padding-right: max(40px, calc((100vw - 1100px) / 2 + 40px));
}

.section-heading {
  margin-bottom: 34px;
  max-width: 760px;
}

h2 {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(2rem, 4vw, 3.45rem);
  letter-spacing: 0;
  line-height: 1.05;
  margin: 0;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.25;
  margin: 0 0 10px;
}

p {
  margin: 0 0 18px;
}

.two-column {
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
}

.callout,
.submission-card,
.people-grid article,
.topic-list {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.callout {
  align-self: start;
  border-top: 5px solid var(--teal);
  padding: 26px;
}

.axis-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.axis-grid article {
  border-top: 3px solid var(--green);
  padding: 4px 0 0;
}

.axis-grid span {
  color: var(--gold);
  display: block;
  font-weight: 800;
  margin-bottom: 12px;
}

.topic-list {
  margin-top: 48px;
  padding: 28px;
}

.topic-list ul,
.plain-list {
  margin: 0;
  padding-left: 1.1rem;
}

.topic-list li,
.plain-list li {
  margin: 10px 0;
}

.cfp-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.submission-card {
  border-top: 5px solid var(--coral);
  padding: 28px;
}

.submission-card:nth-child(2) {
  border-top-color: var(--teal);
}

.submission-card:nth-child(3) {
  border-top-color: var(--gold);
}

.details-grid {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 34px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 38px;
  padding-top: 34px;
}

.schedule {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.schedule div {
  display: grid;
  gap: 22px;
  grid-template-columns: 170px 1fr;
  padding: 16px 22px;
}

.schedule div + div {
  border-top: 1px solid var(--line);
}

.schedule time {
  color: var(--green);
  font-weight: 800;
}

.people-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.people-group + .people-group {
  margin-top: 42px;
}

.people-group > h3 {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 1.45rem;
  margin-bottom: 18px;
}

.people-grid article {
  min-height: 260px;
  padding: 22px;
}

.person-photo {
  aspect-ratio: 1;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: block;
  margin-bottom: 18px;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.people-grid p {
  color: var(--muted-ink);
  margin: 0;
}

.status {
  color: var(--green) !important;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 12px !important;
  text-transform: uppercase;
}

.status.tentative {
  color: var(--gold) !important;
}

.contact {
  padding-bottom: 58px;
}

.contact > div {
  border-left: 5px solid var(--green);
  max-width: 760px;
  padding-left: 26px;
}

.contact a {
  color: var(--green);
  font-weight: 700;
}

.site-footer {
  background: var(--green-deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 24px 40px;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 22px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    left: 0;
    padding: 18px 22px 24px;
    position: absolute;
    right: 0;
    top: 72px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    background: linear-gradient(180deg, var(--green-deep) 0%, #143f35 100%);
  }

  .hero::before {
    background: rgba(15, 66, 53, 0.88);
  }

  .hero::after {
    background-position: center;
    opacity: 0.12;
  }

  .world-grid {
    opacity: 0.5;
  }

  .two-column,
  .cfp-layout,
  .details-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  .hero,
  .section,
  .section.muted {
    padding-left: 22px;
    padding-right: 22px;
  }

  .hero {
    min-height: auto;
    padding-bottom: 42px;
    padding-top: 58px;
  }

  .hero h1 {
    font-size: clamp(2.6rem, 15vw, 4.2rem);
  }

  .event-facts,
  .axis-grid,
  .people-grid {
    grid-template-columns: 1fr;
  }

  .schedule div {
    gap: 6px;
    grid-template-columns: 1fr;
  }

  .world-grid {
    display: none;
  }
}