:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-deep: #040a13;
  --bg-panel: #111d2d;
  --bg-panel-strong: #16263a;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --soft: #94a3b8;
  --line: rgb(255 255 255 / 14%);
  --cyan: #67e8f9;
  --lime: #bef264;
  --gold: #f6b91f;
  --coral: #fb7185;
  --blue: #3154e9;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(100% - 2rem, 1200px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgb(4 10 19 / 90%);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand img {
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #050b14;
}

.brand span {
  display: grid;
  gap: 0.1rem;
}

.brand strong {
  font-size: 1.08rem;
}

.brand small {
  color: var(--soft);
  font-size: 0.82rem;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.4vw, 1.7rem);
  font-weight: 800;
}

.primary-nav a,
.nav-dropdown summary {
  color: #e5edf7;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a:focus,
.nav-dropdown summary:hover,
.nav-dropdown summary:focus {
  color: var(--cyan);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown summary {
  cursor: pointer;
  list-style: none;
}

.nav-dropdown summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.8rem);
  right: 0;
  z-index: 40;
  display: grid;
  min-width: 12rem;
  gap: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0b1625;
  padding: 0.45rem;
  box-shadow: 0 24px 60px rgb(0 0 0 / 32%);
}

.nav-dropdown:not([open]) .nav-dropdown-menu {
  display: none;
}

.nav-dropdown-menu a {
  border-radius: 6px;
  padding: 0.72rem 0.8rem;
  text-align: right;
  white-space: nowrap;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a:focus {
  background: rgb(255 255 255 / 7%);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgb(255 255 255 / 7%);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--text);
}

.hero {
  overflow: hidden;
  min-height: calc(100svh - 76px);
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
  background:
    radial-gradient(circle at 72% 18%, rgb(8 145 178 / 24%), transparent 30%),
    radial-gradient(circle at 86% 90%, rgb(251 113 133 / 16%), transparent 32%),
    linear-gradient(90deg, rgb(49 84 233 / 10%) 1px, transparent 1px),
    linear-gradient(0deg, rgb(49 84 233 / 10%) 1px, transparent 1px),
    linear-gradient(180deg, #08182a 0%, #06111f 100%);
  background-size: auto, auto, 180px 180px, 180px 180px, auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  gap: clamp(1.8rem, 4.5vw, 3.5rem);
  align-items: start;
}

.hero-copy {
  min-width: 0;
  position: relative;
  z-index: 2;
}

.eyebrow,
.kicker {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-copy .eyebrow {
  display: inline-flex;
  max-width: 100%;
  padding: 0.42rem 0.9rem;
  border: 1px solid rgb(103 232 249 / 45%);
  border-radius: 999px;
  background: rgb(8 145 178 / 24%);
  color: #d9fbff;
  white-space: nowrap;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  letter-spacing: 0;
}

h1 {
  margin-top: 1rem;
  font-size: clamp(3.55rem, 4.2vw, 5rem);
  line-height: 0.98;
}

h1 span {
  display: block;
  white-space: nowrap;
}

.dek {
  max-width: 41rem;
  margin-top: 1.4rem;
  color: #dbe4f0;
  font-size: clamp(1.08rem, 1.5vw, 1.2rem);
  line-height: 1.75;
}

.hero-actions,
.activation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.85rem 1.25rem;
  font-weight: 900;
  text-decoration: none;
}

.button-primary {
  background: var(--blue);
  box-shadow: 0 16px 40px rgb(49 84 233 / 28%);
  color: #fff;
}

.button-secondary {
  border-color: rgb(255 255 255 / 22%);
  background: rgb(255 255 255 / 8%);
  color: #f8fafc;
}

.hero-media {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(120px, 0.52fr) minmax(160px, 0.7fr) minmax(210px, 1fr);
  grid-template-rows: auto auto auto;
  gap: 0.85rem;
  align-items: start;
  margin-top: clamp(7.75rem, 11vw, 12rem);
}

.logo-card,
.media-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgb(255 255 255 / 7%);
  box-shadow: 0 28px 80px rgb(0 0 0 / 26%);
}

.logo-card {
  display: grid;
  z-index: 2;
  grid-column: 1;
  grid-row: 1;
  aspect-ratio: 1 / 1;
  align-self: start;
  place-items: center;
  padding: clamp(0.9rem, 2vw, 1.4rem);
  transform: translateY(12%);
}

.logo-card img {
  width: min(82%, 190px);
  height: auto;
}

.media-card {
  display: block;
  min-height: 160px;
  color: #fff;
  text-decoration: none;
}

.media-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sf2024-card {
  grid-column: 1 / span 2;
  grid-row: 2;
  min-height: 150px;
  transform: translateY(0.75rem);
}

.sv2023-card {
  grid-column: 2 / span 2;
  grid-row: 1 / span 2;
  min-height: 260px;
}

.sv2024-card {
  grid-column: 2 / span 2;
  grid-row: 3;
  min-height: 180px;
  transform: translateX(1.2rem);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.summit-series {
  background:
    radial-gradient(circle at 12% 20%, rgb(49 84 233 / 18%), transparent 30%),
    radial-gradient(circle at 92% 88%, rgb(251 113 133 / 14%), transparent 32%),
    #07111f;
}

.section-head {
  display: grid;
  gap: 0.9rem;
  max-width: 56rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-head h2,
.split-grid h2,
.activation-card h2 {
  color: #f8fafc;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 1;
}

.section-head h2 span {
  display: block;
}

.section-head p:not(.eyebrow),
.split-grid p,
.activation-card p {
  color: #dbe4f0;
  font-size: clamp(1.02rem, 1.45vw, 1.16rem);
  line-height: 1.75;
}

.event-rows {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.event-row {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(1.4rem, 4vw, 3.2rem);
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: clamp(1.6rem, 4vw, 3rem);
}

.event-row.is-reversed .event-image {
  order: 2;
}

.event-image {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #050b14;
  box-shadow: 0 26px 90px rgb(0 0 0 / 22%);
}

.event-image img {
  display: block;
  width: 100%;
  height: auto;
}

.event-copy {
  display: grid;
  gap: 0.65rem;
}

.event-copy h3 {
  font-size: clamp(2.1rem, 3.3vw, 3.35rem);
  line-height: 1.02;
  white-space: nowrap;
}

.place {
  color: #a7f3d0;
  font-weight: 900;
}

.event-copy p:not(.kicker):not(.place) {
  color: var(--muted);
  line-height: 1.7;
}

.text-link {
  width: fit-content;
  color: var(--cyan);
  font-weight: 900;
  text-decoration: none;
}

.text-link:hover,
.text-link:focus {
  text-decoration: underline;
}

.community-band {
  background: #0b1625;
}

.programming-band {
  background: #07111f;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: start;
}

.split-grid > div:first-child {
  display: grid;
  gap: 1rem;
}

.pill-grid,
.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.pill-grid span,
.theme-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-panel);
  color: #e7edf6;
  padding: 1.05rem;
}

.pill-grid span {
  font-weight: 900;
}

.theme-grid article {
  display: grid;
  gap: 0.55rem;
}

.theme-grid h3 {
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.3;
}

.theme-grid p {
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.activation-band {
  background: #f5ecdf;
  color: #07111f;
}

.activation-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border: 1px solid rgb(7 17 31 / 10%);
  border-radius: 8px;
  background: #fff;
  padding: clamp(1.5rem, 4vw, 2rem);
  box-shadow: 0 18px 50px rgb(7 17 31 / 8%);
}

.activation-card h2 {
  color: #07111f;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.activation-card p {
  max-width: 48rem;
  color: #314056;
}

.activation-card .eyebrow {
  color: #b37d00;
}

.activation-card .button-secondary {
  border-color: #d8e0ea;
  background: #fff;
  color: #07111f;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #0d1728;
  color: #e5edf7;
  padding-block: 2.2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: start;
}

.site-footer p {
  margin-top: 0.35rem;
  margin-bottom: 0.35rem;
  color: #aab8cc;
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

.site-footer small {
  color: #8493a9;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.3rem;
  justify-content: flex-end;
}

.site-footer a {
  color: #e5edf7;
  font-weight: 800;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus {
  color: var(--cyan);
}

@media (max-width: 980px) {
  .header-inner {
    min-height: 72px;
  }

  .menu-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: 72px;
    right: 1rem;
    display: none;
    width: min(22rem, calc(100vw - 2rem));
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #0b1625;
    padding: 0.5rem;
    box-shadow: 0 24px 60px rgb(0 0 0 / 30%);
  }

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

  .primary-nav a {
    border-radius: 8px;
    padding: 0.9rem 1rem;
  }

  .nav-dropdown summary {
    border-radius: 8px;
    padding: 0.9rem 1rem;
  }

  .primary-nav a:hover,
  .primary-nav a:focus,
  .nav-dropdown summary:hover,
  .nav-dropdown summary:focus {
    background: rgb(255 255 255 / 7%);
  }

  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    margin: 0 0.5rem 0.45rem;
    background: rgb(255 255 255 / 5%);
  }

  .hero-grid,
  .event-row,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .event-row.is-reversed .event-image {
    order: initial;
  }

  .hero-media {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 0;
  }

  .logo-card,
  .sf2024-card,
  .sv2023-card,
  .sv2024-card {
    grid-column: auto;
    grid-row: auto;
    transform: none;
  }

  .logo-card {
    width: min(15rem, 100%);
    justify-self: center;
  }

  .media-card img {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.5rem, 1200px);
  }

  .brand img {
    width: 44px;
    height: 44px;
  }

  .brand small {
    max-width: 14rem;
  }

  .hero {
    min-height: auto;
    padding-block: 3rem 4rem;
  }

  .hero-copy .eyebrow {
    font-size: 0.7rem;
    white-space: normal;
  }

  h1 {
    font-size: clamp(3rem, 12vw, 4.1rem);
  }

  h1 span {
    white-space: normal;
  }

  .event-copy h3 {
    white-space: normal;
  }

  .dek {
    font-size: 1.02rem;
  }

  .hero-actions,
  .activation-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .pill-grid,
  .theme-grid {
    grid-template-columns: 1fr;
  }

  .activation-card,
  .footer-grid {
    display: grid;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}