:root {
  --forest: #07391f;
  --green: #0e5735;
  --leaf: #dfece4;
  --paper: #fbfaf5;
  --bone: #f2efe4;
  --gold: #b99a32;
  --gold-soft: #e7d59a;
  --ink: #111915;
  --muted: #5b6961;
  --line: #d8ded7;
  --white: #fff;
  --blue: #245c72;
}

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

body {
  margin: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

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

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

.preview-intro,
.preview-panel,
.site-concept {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.preview-intro {
  padding: 56px 0 30px;
}

.preview-label,
.kicker,
.panel-heading p {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.preview-intro h1,
.panel-heading h2,
.concept-hero h2,
.modern-section h2 {
  margin: 0;
  color: var(--forest);
  font-family: "Segoe UI", Arial, sans-serif;
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.025em;
}

.preview-intro h1 {
  max-width: 720px;
  font-size: clamp(42px, 6vw, 76px);
}

.preview-intro p:last-child {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.preview-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .62);
}

.panel-heading {
  margin-bottom: 20px;
}

.panel-heading h2 {
  font-size: clamp(28px, 4vw, 44px);
}

.header-demo {
  overflow: hidden;
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}

.topline {
  padding: 8px 24px;
  background: var(--forest);
  color: rgba(255, 255, 255, .78);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.demo-header,
.concept-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 24px;
}

.demo-brand,
.concept-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.demo-brand strong,
.concept-brand strong {
  display: block;
  color: var(--forest);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .01em;
}

.demo-brand small,
.concept-brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.monogram {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  flex: 0 0 auto;
  border: 1px solid rgba(185, 154, 50, .7);
  background: var(--forest);
  color: var(--white);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 20px;
  font-weight: 900;
  line-height: .88;
  text-align: center;
}

.monogram em {
  color: var(--gold-soft);
  font-size: 12px;
  font-style: normal;
  letter-spacing: .08em;
}

nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

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

.submit-chip,
.outline-chip,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 900;
}

.submit-chip,
.primary-action {
  background: var(--gold);
  color: var(--forest);
}

.dark {
  background: var(--forest);
  border-bottom: 4px solid var(--gold);
}

.dark .demo-brand strong,
.dark nav a {
  color: var(--white);
}

.dark .demo-brand small {
  color: rgba(255, 255, 255, .62);
}

.seal {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 50%;
  color: var(--gold-soft);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 24px;
  font-weight: 900;
}

.minimal {
  align-items: center;
  background: #fff;
}

.wordmark {
  color: var(--forest);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 24px;
  font-weight: 900;
}

.wordmark span {
  color: var(--gold);
}

.outline-chip {
  border: 1px solid var(--gold);
  color: var(--forest);
}

.site-concept {
  overflow: hidden;
  margin-top: 42px;
  margin-bottom: 80px;
  border: 1px solid rgba(7, 57, 31, .18);
  border-radius: 22px;
  background: var(--paper);
  box-shadow: 0 24px 80px rgba(7, 57, 31, .12);
}

.site-concept.production-site {
  width: 100%;
  margin: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.concept-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 245, .92);
  backdrop-filter: blur(14px);
}

.concept-hero {
  position: relative;
  min-height: 570px;
  padding: 70px 56px 72px;
  background:
    linear-gradient(90deg, rgba(7, 57, 31, 1) 0%, rgba(7, 57, 31, .98) 50%, rgba(7, 57, 31, .78) 68%, rgba(7, 57, 31, .30) 100%),
    url("assets/hero-bogota-market.png");
  background-position: center right;
  background-size: auto 100%;
  color: var(--white);
}

.hero-copy {
  position: relative;
  align-self: center;
}

.concept-hero h1,
.concept-hero h2 {
  max-width: 850px;
  margin: 0;
  color: var(--white);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: clamp(50px, 6.2vw, 88px);
  font-weight: 900;
  line-height: .98;
  letter-spacing: -.035em;
}

.hero-copy > p:not(.kicker) {
  max-width: 760px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, .90);
  font-size: 24px;
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.secondary-action {
  border: 1px solid rgba(255, 255, 255, .32);
  color: var(--white);
  background: rgba(255, 255, 255, .12);
}

.concept-hero .kicker {
  color: var(--gold);
}

.top-organizers {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  align-items: center;
  padding: 20px 56px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.top-organizers span {
  color: var(--green);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.top-organizers img {
  width: 100%;
  max-height: 78px;
  object-fit: contain;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, .12);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: var(--forest);
  color: var(--white);
}

.signal-row article {
  padding: 24px 30px;
  border-right: 1px solid rgba(255, 255, 255, .15);
}

.signal-row article:last-child {
  border-right: 0;
}

.signal-row span {
  display: block;
  color: rgba(255, 255, 255, .65);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.signal-row strong {
  display: block;
  margin-top: 8px;
  color: var(--gold-soft);
  font-size: clamp(20px, 2.2vw, 27px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
}

.signal-row small {
  display: block;
  margin-top: 9px;
  color: rgba(255, 255, 255, .64);
  font-size: 13px;
  font-weight: 700;
}

.modern-section {
  padding: 70px 56px;
  border-bottom: 1px solid var(--line);
}

.modern-section.split,
.modern-section.committee {
  display: grid;
  grid-template-columns: .68fr 1.32fr;
  gap: 44px;
  align-items: start;
}

.modern-section h2 {
  font-size: clamp(32px, 4vw, 50px);
}

.keynote-feature {
  background:
    linear-gradient(90deg, #07391f 0%, #0b4327 54%, #125035 100%);
  color: var(--white);
}

.section-title-only {
  margin-bottom: 34px;
}

.keynote-feature h2 {
  color: var(--white);
}

.keynote-feature .kicker {
  color: var(--gold-soft);
}

.speaker-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.speaker-strip article {
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 14px;
  background: rgba(255, 255, 255, .10);
}

.speaker-strip img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
}

.speaker-strip div {
  padding: 22px;
}

.speaker-strip h3 {
  margin: 0;
  color: var(--white);
  font-size: 30px;
  line-height: 1.08;
}

.speaker-affiliation {
  margin: 7px 0 22px;
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
}

.speaker-strip p:not(.speaker-affiliation) {
  margin: 0;
  color: rgba(255, 255, 255, .78);
  font-size: 15px;
  line-height: 1.55;
}

.topics {
  background: var(--leaf);
}

.topic-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.topic-columns article {
  padding: 24px;
  border-left: 4px solid var(--gold);
  background: rgba(255, 255, 255, .76);
}

.topic-columns h3 {
  margin: 0 0 12px;
  color: var(--forest);
  font-size: 20px;
}

.topic-columns p {
  margin: 0;
  color: var(--muted);
}

.chair-list,
.date-list,
.history-list {
  display: grid;
  gap: 14px;
}

.chair-list {
  grid-template-columns: repeat(5, 1fr);
}

.chair-list article,
.date-list article,
.history-list article {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
}

.chair-list article {
  padding: 20px;
}

.chair-list h3,
.date-list h3 {
  margin: 0 0 8px;
  color: var(--forest);
  font-size: 18px;
  line-height: 1.22;
}

.chair-list p,
.date-list p,
.history-list p,
.info-band p,
.concept-footer p {
  margin: 0;
  color: var(--muted);
}

.date-list {
  grid-template-columns: repeat(4, 1fr);
}

.date-list article {
  padding: 24px;
}

.date-list strong {
  display: block;
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 24px;
  line-height: 1.05;
}

.info-band {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--forest);
  color: var(--white);
}

.info-band article {
  padding: 52px 56px;
  border-right: 1px solid rgba(255, 255, 255, .16);
}

.info-band article:last-child {
  border-right: 0;
}

.info-band h2 {
  color: var(--white);
  font-size: clamp(28px, 3vw, 40px);
}

.info-band p {
  margin-top: 16px;
  color: rgba(255, 255, 255, .74);
  font-size: 16px;
}

.info-band a,
.text-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--gold-soft);
  font-weight: 900;
}

.history-preview {
  background: var(--leaf);
}

.history-list {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 8px;
}

.history-list article {
  padding: 24px;
  border-left: 4px solid var(--gold);
}

.history-list span {
  display: block;
  margin-bottom: 12px;
  color: var(--forest);
  font-size: 28px;
  font-weight: 900;
}

.committee ul {
  columns: 2;
  column-gap: 34px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.committee li {
  break-inside: avoid;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: var(--forest);
  font-weight: 900;
}

.committee li span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.modern-logos {
  padding: 54px 56px 62px;
}

.modern-logos h2 {
  margin: 0;
  color: var(--forest);
  font-family: "Segoe UI", Arial, sans-serif;
  font-weight: 900;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.02;
  letter-spacing: -.025em;
}

.modern-logos img {
  width: 100%;
  margin-top: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
}

.support-preview {
  padding-top: 20px;
}

.support-logo-preview {
  width: min(340px, 100%);
  margin-top: 18px;
  padding: 24px 32px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
}

.support-logo-preview img {
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
}

.concept-footer {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
  padding: 46px 56px;
  background: var(--forest);
  color: var(--white);
}

.concept-footer h2,
.concept-footer strong {
  margin: 0;
  color: var(--white);
}

.concept-footer h2 {
  font-size: 24px;
}

.concept-footer strong {
  display: block;
  margin-bottom: 8px;
  color: var(--gold-soft);
}

.concept-footer p {
  color: rgba(255, 255, 255, .72);
}

.concept-footer a {
  color: inherit;
}

@media (max-width: 900px) {
  .demo-header,
  .concept-header,
  .modern-section.split,
  .modern-section.committee {
    grid-template-columns: 1fr;
  }

  .concept-header,
  .demo-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .concept-hero,
  .modern-section,
  .modern-logos,
  .top-organizers {
    padding-left: 28px;
    padding-right: 28px;
  }

  .top-organizers {
    grid-template-columns: 1fr;
  }

  .signal-row,
  .speaker-strip,
  .topic-columns,
  .chair-list,
  .date-list,
  .history-list,
  .info-band,
  .concept-footer {
    grid-template-columns: 1fr;
  }

  .info-band article {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .16);
  }

  .committee ul {
    columns: 1;
  }
}