:root {
  --bg-deep: #041d4a;
  --bg-mid: #082e6f;
  --ink: #06244d;
  --paper: #f1f3f6;
  --white: #ffffff;
  --aqua: #00c6d8;
  --orange: #ff8600;
  --line: #d8dee8;
  --muted: #5f6f87;
  --shadow: 0 14px 42px rgba(5, 20, 56, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 10%, #103a88 0%, #081d4c 42%, #03112f 100%);
}

body {
  min-height: 100vh;
  position: relative;
}

.page-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 12px 12px;
  opacity: 0.3;
}

.container {
  width: min(1180px, calc(100% - 56px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: rgba(4, 23, 58, 0.94);
  border-bottom: 1px solid rgba(146, 187, 255, 0.2);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.logo {
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-decoration: none;
  color: #85d8ef;
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav a {
  color: #d7e9ff;
  text-transform: uppercase;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  font-family: "Barlow Condensed", sans-serif;
  text-decoration: none;
  font-weight: 700;
}

.nav a:hover {
  color: #ffffff;
}

.btn {
  border: 0;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  background: linear-gradient(90deg, #ff9d14 0%, var(--orange) 70%);
  box-shadow: 0 8px 18px rgba(255, 123, 0, 0.35);
  padding: 12px 24px;
}

.btn-small {
  padding: 10px 16px;
}

.section,
.hero,
.sponsors,
.contact {
  position: relative;
  z-index: 3;
}

.hero {
  background: linear-gradient(120deg, #041a49 0%, #05265f 100%);
  color: var(--white);
  padding: 74px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: center;
}

.tag {
  width: max-content;
  background: rgba(0, 214, 235, 0.16);
  color: #8feeff;
  border: 1px solid rgba(0, 214, 235, 0.25);
  border-radius: 9px;
  padding: 8px 14px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.72rem;
  margin: 0 0 16px;
  color: var(--orange);
}

.hero h1,
.section h2,
.contact h2 {
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  line-height: 1.04;
  margin: 0;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--orange);
}

.hero-copy p {
  max-width: 470px;
  line-height: 1.7;
  color: #dce7ff;
}

.hero-location {
  margin-top: 24px;
  text-transform: uppercase;
  font-family: "Barlow Condensed", sans-serif;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: #ffad4a;
}

.hero-media {
  position: relative;
  min-height: 400px;
}

.hero-stage {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  object-fit: cover;
  object-position: center;
  background:
    linear-gradient(165deg, rgba(0, 0, 0, 0.25), rgba(8, 45, 110, 0.5)),
    repeating-linear-gradient(90deg, rgba(159, 198, 255, 0.1), rgba(159, 198, 255, 0.1) 12px, rgba(12, 34, 86, 0.05) 12px, rgba(12, 34, 86, 0.05) 26px),
    radial-gradient(circle at 50% 0, rgba(192, 224, 255, 0.6) 0, rgba(1, 26, 73, 0.8) 42%, #02173f 100%);
  box-shadow: var(--shadow);
}

.section {
  padding: 88px 0;
}

.section-light {
  background: #eff1f4;
}

.section h2,
.contact h2 {
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  color: #072c62;
}

.subtitle,
.section-copy {
  margin-top: 14px;
  margin-bottom: 34px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 620px;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.speaker-card {
  background: #f9fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.speaker-photo {
  display: block;
  width: 100%;
  height: 230px;
  border-radius: 6px;
  object-fit: contain;
  object-position: center;
  background-color: #d8dee7;
}

.photo-2 {
  filter: contrast(1.07) brightness(0.97);
}

.photo-3 {
  filter: contrast(1.1) brightness(1.05);
}

.photo-4 {
  filter: contrast(1.2) brightness(0.92);
}

.speaker-topic {
  margin: 12px 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.66rem;
  color: #00a2be;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
}

.speaker-card h3 {
  margin: 0;
  font-size: 1.04rem;
  color: #082955;
}

.link-arrow {
  display: block;
  margin-top: 28px;
  width: fit-content;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.17em;
  color: #07285b;
  font-size: 0.75rem;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
}

.link-arrow::after {
  content: " ->";
}

.section-dark {
  background: linear-gradient(108deg, #052459 0%, #062d69 66%, #0b4d6a 66%, #0a4560 100%);
  color: #f1f8ff;
}

.section-dark h2 {
  color: #f8fcff;
}

.section-dark .eyebrow {
  color: #2de3f3;
}

.section-dark .section-copy {
  color: #d4def0;
}

.program-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.program-items {
  display: grid;
  gap: 16px;
}

.program-item {
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 20px;
  background: rgba(6, 27, 66, 0.35);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.program-item:hover {
  border-color: rgba(94, 226, 255, 0.55);
}

.program-item.is-active {
  border-color: rgba(94, 226, 255, 0.85);
  background: rgba(7, 39, 93, 0.72);
}

.program-item h3 {
  margin: 0 0 7px;
  color: #f4f9ff;
}

.program-item p {
  margin: 0 0 10px;
  color: #bed0ea;
}

.program-item a {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.66rem;
  color: var(--orange);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
}

.program-media {
  min-height: 500px;
  border-radius: 10px;
  background: #06214f;
  position: relative;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.program-media-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.live-pill {
  position: absolute;
  bottom: 14px;
  left: 16px;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.11em;
  font-family: "Barlow Condensed", sans-serif;
  color: var(--white);
  background: var(--orange);
  border-radius: 999px;
  padding: 5px 11px;
  font-weight: 700;
  z-index: 2;
}

.reco-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.reco-column h3 {
  margin: 0 0 11px;
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  color: #08285a;
}

.reco-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px 8px 0 0;
  object-fit: cover;
  object-position: center;
  background: #d8dee7;
}

.reco-list {
  display: grid;
  gap: 10px;
}

.reco-item {
  background: #f9fbfd;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.reco-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
  background: #d8dee7;
}

.reco-item-content {
  padding: 12px;
}

.reco-item h4 {
  margin: 0 0 6px;
  color: #0a2f63;
}

.reco-item p {
  margin: 0;
  color: #5e6f88;
}

.adventure-columns {
  margin-top: 22px;
}

.adventure-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.adventure-card {
  min-height: 280px;
  border-radius: 10px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  color: #f6fbff;
  box-shadow: var(--shadow);
}

.adventure-card h3 {
  margin: 0 0 8px;
  text-transform: uppercase;
  font-family: "Barlow Condensed", sans-serif;
  letter-spacing: 0.08em;
  font-size: 1.2rem;
}

.adventure-card p {
  margin: 0;
  max-width: 280px;
  color: #d4e8ff;
}

.card-1 {
  background: linear-gradient(180deg, rgba(8, 16, 39, 0) 30%, rgba(5, 21, 56, 0.8) 100%), linear-gradient(140deg, #1f88d6, #003f80);
}

.card-2 {
  background: linear-gradient(180deg, rgba(8, 16, 39, 0) 30%, rgba(5, 21, 56, 0.8) 100%), linear-gradient(140deg, #5f8594, #234b6c);
}

.card-3 {
  background: linear-gradient(180deg, rgba(8, 16, 39, 0) 30%, rgba(5, 21, 56, 0.8) 100%), linear-gradient(140deg, #8eb9d0, #3e6f98);
}

.sponsors {
  background: linear-gradient(120deg, #041a49 0%, #072a63 100%);
  padding-top: 40px;
  padding-bottom: 48px;
}

.sponsors .eyebrow {
  color: #2de3f3;
}

.sponsors h2 {
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 26px;
  color: #f3f9ff;
}

.sponsor-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.sponsor-image {
  width: min(880px, 100%);
  height: auto;
  display: block;
}

.contact {
  padding-top: 32px;
  padding-bottom: 60px;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  background: #f6f7f9;
  border-radius: 14px;
  border: 1px solid #d5ddea;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.contact-card {
  background: linear-gradient(130deg, #082a63, #04204f);
  color: #f1f7ff;
  padding: 36px;
}

.contact-card h2 {
  color: #ffffff;
  margin-bottom: 10px;
}

.contact-card p {
  color: #d4e4fb;
}

.contact-card ul {
  list-style: none;
  padding: 0;
  margin: 20px 0 30px;
  display: grid;
  gap: 10px;
}

.map-placeholder {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: end;
  padding: 22px;
}

.map-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.map-label {
  position: relative;
  z-index: 1;
  color: #71809a;
  font-family: "Barlow Condensed", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(246, 248, 252, 0.88);
  border: 1px solid #d8deea;
  border-radius: 8px;
  padding: 6px 10px;
}

.site-footer {
  background: #062557;
  color: #d2e4ff;
  padding: 52px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 22px;
}

.site-footer h3,
.site-footer h4 {
  margin: 0 0 12px;
  text-transform: uppercase;
  font-family: "Barlow Condensed", sans-serif;
  letter-spacing: 0.1em;
  color: #ffffff;
}

.site-footer a {
  display: block;
  color: #c2dbff;
  text-decoration: none;
  margin-bottom: 8px;
}

.footer-bottom {
  margin-top: 30px;
  border-top: 1px solid rgba(153, 183, 228, 0.3);
  padding-top: 14px;
  color: #a4c5ef;
}

.reveal-up {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .nav {
    display: none;
  }

  .hero-grid,
  .program-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .hero-media {
    min-height: 440px;
  }

  .speakers-grid,
  .reco-columns,
  .adventure-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .container {
    width: min(1180px, calc(100% - 32px));
  }

  .btn-small {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

  .section {
    padding: 64px 0;
  }

  .speakers-grid,
  .reco-columns,
  .adventure-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .sponsor-row {
    justify-content: start;
    gap: 22px;
  }

  .hero-media {
    min-height: 300px;
  }
}