:root {
  --navy: #061326;
  --navy-2: #08213d;
  --blue: #0b74c8;
  --blue-dark: #12377b;
  --cyan: #16b7d7;
  --green: #58bf22;
  --green-deep: #067040;
  --ink: #101828;
  --muted: #667085;
  --line: rgba(255, 255, 255, 0.16);
  --paper: #f6fafb;
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(5, 19, 38, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: 50%;
  display: flex;
  width: min(1180px, calc(100% - 32px));
  height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 12px 10px 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 50px rgba(6, 19, 38, 0.12);
  transform: translateX(-50%);
  backdrop-filter: blur(16px);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
}

.brand {
  display: grid;
  width: 190px;
  height: 46px;
  align-items: center;
  overflow: hidden;
}

.brand img,
.site-footer img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transform: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #344054;
  font-size: 0.9rem;
  font-weight: 700;
}

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

.header-cta,
.primary-button,
.secondary-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
}

.header-cta,
.primary-button {
  padding: 0 22px;
  color: var(--white);
  background: linear-gradient(135deg, var(--green), var(--cyan) 48%, var(--blue-dark));
  box-shadow: 0 14px 34px rgba(11, 116, 200, 0.24);
}

.secondary-button {
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  padding: 142px max(24px, calc((100vw - 1180px) / 2)) 72px;
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(6, 19, 38, 0.95) 0%, rgba(6, 19, 38, 0.82) 46%, rgba(4, 40, 70, 0.62) 100%),
    radial-gradient(circle at 72% 18%, rgba(22, 183, 215, 0.34), transparent 28%),
    radial-gradient(circle at 18% 76%, rgba(88, 191, 34, 0.28), transparent 32%),
    linear-gradient(135deg, #05101f 0%, #09213b 58%, #063d5d 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(115deg, transparent 0 42%, rgba(22, 183, 215, 0.2) 42.1% 42.35%, transparent 42.45% 100%),
    linear-gradient(118deg, transparent 0 57%, rgba(88, 191, 34, 0.18) 57.1% 57.35%, transparent 57.45% 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 86px 86px, 86px 86px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 86%);
}

.hero::after {
  position: absolute;
  right: -180px;
  bottom: -260px;
  width: 720px;
  height: 720px;
  content: "";
  border: 1px solid rgba(22, 183, 215, 0.34);
  border-radius: 50%;
  box-shadow:
    inset 0 0 0 72px rgba(255, 255, 255, 0.02),
    inset 0 0 0 146px rgba(88, 191, 34, 0.06),
    0 0 110px rgba(22, 183, 215, 0.18);
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-backdrop span {
  position: absolute;
  display: block;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(88, 191, 34, 0.94), rgba(22, 183, 215, 0.74), rgba(11, 116, 200, 0.1));
  filter: blur(1px);
  opacity: 0.74;
  transform: rotate(-18deg);
}

.hero-backdrop span:nth-child(1) {
  top: 34%;
  right: -80px;
  width: 520px;
  height: 5px;
}

.hero-backdrop span:nth-child(2) {
  top: 47%;
  right: 70px;
  width: 320px;
  height: 3px;
  opacity: 0.52;
}

.hero-backdrop span:nth-child(3) {
  top: 62%;
  left: -90px;
  width: 430px;
  height: 4px;
  opacity: 0.46;
}

.hero-shell {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.72fr);
  gap: 64px;
  align-items: center;
  min-height: calc(100vh - 214px);
}

.hero-content {
  position: relative;
  width: min(780px, 100%);
  max-width: 100%;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(4.1rem, 7.4vw, 8.25rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  max-width: 690px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.08rem, 1.45vw, 1.35rem);
  line-height: 1.65;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-visual {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.34);
}

.hero-visual::before {
  position: absolute;
  z-index: 2;
  inset: 0;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: inherit;
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 600px;
  object-fit: cover;
  object-position: 72% center;
  filter: saturate(1.06) contrast(1.05);
}

.hero-badge {
  position: absolute;
  z-index: 3;
  right: 22px;
  bottom: 22px;
  min-width: 210px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(6, 19, 38, 0.72);
  backdrop-filter: blur(14px);
}

.hero-badge span,
.hero-info span {
  display: block;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1.35;
  text-transform: uppercase;
}

.hero-badge strong {
  display: block;
  margin-top: 6px;
  font-size: 1.55rem;
  line-height: 1.05;
}

.hero-info {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.82fr 0.82fr 1.36fr;
  gap: 1px;
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(18px);
}

.hero-info div {
  min-height: 104px;
  padding: 24px;
  background: rgba(6, 19, 38, 0.52);
}

.hero-info strong {
  display: block;
  margin-top: 10px;
  color: var(--white);
  font-size: 1.05rem;
  line-height: 1.35;
  font-weight: 850;
}

.hero-date-card {
  position: relative;
  z-index: 3;
  display: grid;
  gap: 22px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06)),
    rgba(4, 16, 31, 0.68);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(18px);
}

.hero-date-card img {
  width: 230px;
  height: 58px;
  object-fit: contain;
  border-radius: 4px;
  background: var(--white);
}

.hero-date-main {
  padding: 30px 0 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-date-main span {
  display: block;
  color: var(--green);
  font-size: clamp(4.1rem, 7vw, 6.3rem);
  font-weight: 900;
  line-height: 0.85;
}

.hero-date-main strong {
  display: block;
  margin-top: 12px;
  color: var(--white);
  font-size: 2rem;
  line-height: 1;
  text-transform: uppercase;
}

.hero-date-location,
.hero-date-note {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.hero-date-location span,
.hero-date-note span {
  display: block;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-date-location strong,
.hero-date-note strong {
  display: block;
  margin-top: 8px;
  color: var(--white);
  font-size: 1.25rem;
  line-height: 1.28;
}

.hero-date-note strong {
  font-size: 0.98rem;
}

.section {
  padding: 96px max(24px, calc((100vw - 1180px) / 2));
}

.section-cta {
  display: flex;
  margin-top: 42px;
}

.section-cta-on-dark {
  grid-column: 1 / -1;
  margin-top: 6px;
}

.intro {
  background: var(--white);
}

.intro-grid,
.section-heading,
.network-panel,
.venue-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 72px;
  align-items: start;
}

h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2.15rem, 4vw, 4.35rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.intro p,
.section-heading p,
.tech-content p,
.network-panel p,
.venue-card p,
.cta-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

.experience {
  position: relative;
  overflow: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 84% 10%, rgba(22, 183, 215, 0.18), transparent 30%),
    radial-gradient(circle at 8% 86%, rgba(88, 191, 34, 0.14), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f4fbfd 48%, #eef7f9 100%);
}

.experience::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(115deg, transparent 0 48%, rgba(22, 183, 215, 0.1) 48.1% 48.35%, transparent 48.45% 100%),
    repeating-linear-gradient(90deg, rgba(6, 19, 38, 0.04) 0 1px, transparent 1px 42px);
  opacity: 0.72;
  pointer-events: none;
}

.experience .section-heading,
.experience-showcase,
.experience .section-cta {
  position: relative;
  z-index: 1;
}

.experience .section-heading h2 {
  color: var(--navy);
}

.experience .section-heading p {
  color: var(--muted);
}

.experience-showcase {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  margin-top: 46px;
}

.experience-card {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(6, 19, 38, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 28px 80px rgba(6, 19, 38, 0.14);
}

.experience-card--image {
  grid-column: span 3;
}

.experience-card--lab {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  align-items: stretch;
  min-height: 430px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 247, 249, 0.98)),
    repeating-linear-gradient(115deg, rgba(22, 183, 215, 0.08) 0 1px, transparent 1px 26px);
}

.experience-media {
  position: absolute;
  inset: 0;
  margin: 0;
}

.experience-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(180deg, rgba(6, 19, 38, 0.12), rgba(6, 19, 38, 0.9)),
    linear-gradient(90deg, rgba(6, 19, 38, 0.22), transparent 58%);
}

.experience-media img,
.experience-lab-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.experience-body {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 100%;
  align-content: end;
  padding: 34px;
}

.experience-tag {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  margin-bottom: 18px;
  padding: 9px 12px;
  border: 1px solid rgba(22, 183, 215, 0.3);
  border-radius: 999px;
  color: var(--green);
  background: rgba(6, 19, 38, 0.58);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
}

.experience-card h3 {
  max-width: 680px;
  margin: 0;
  color: var(--white);
  font-size: clamp(1.55rem, 2.5vw, 2.55rem);
  line-height: 1.04;
}

.experience-card p {
  max-width: 620px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.02rem;
  line-height: 1.62;
}

.experience-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.experience-points span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
  font-weight: 800;
}

.experience-lab-visual {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 12px;
  padding: 18px;
}

.experience-lab-visual img {
  min-height: 0;
  border-radius: 8px;
  filter: saturate(1.05) contrast(1.02);
}

.experience-lab-visual img:first-child {
  grid-row: 1 / -1;
}

.experience-card--lab .experience-body {
  align-content: center;
  padding: 44px 42px 44px 24px;
}

.experience-card--lab .experience-tag {
  color: var(--green-deep);
  background: rgba(6, 19, 38, 0.04);
}

.experience-card--lab h3 {
  color: var(--navy);
}

.experience-card--lab p {
  color: var(--muted);
}

.experience-card--lab .experience-points span {
  border-color: rgba(6, 19, 38, 0.1);
  color: var(--navy);
  background: var(--white);
}

.speaker-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid rgba(6, 19, 38, 0.08);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 50px rgba(6, 19, 38, 0.08);
}

.tech-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
  padding: 96px max(24px, calc((100vw - 1180px) / 2));
  color: var(--white);
  background:
    linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 46%, #05345f 100%),
    repeating-linear-gradient(115deg, rgba(22, 183, 215, 0.12) 0 1px, transparent 1px 22px);
}

.tech-band h2,
.cta-section h2 {
  color: var(--white);
}

.tech-content p {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.76);
}

.tech-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.tech-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.16);
}

.tech-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.tech-image--baropodometria {
  object-position: center;
}

.tech-image--cinematica {
  object-position: center;
}

.tech-image--recursos {
  object-position: center;
}

.tech-image--palmilhas {
  object-position: center;
}

.tech-image--exercicios {
  object-position: center 54%;
}

.tech-image--corrida {
  object-position: 52% 46%;
}

.tech-card div {
  padding: 18px;
}

.tech-card h3 {
  margin: 0;
  color: var(--white);
  font-size: 1.08rem;
  line-height: 1.25;
}

.tech-card p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  line-height: 1.5;
}

.specialists {
  background: var(--white);
}

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 46px;
}

.speaker-card {
  display: grid;
  grid-template-rows: 310px 1fr;
  gap: 22px;
  min-height: auto;
  padding: 14px;
  overflow: hidden;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.speaker-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(6, 19, 38, 0.14);
}

.speaker-card img {
  width: 100%;
  height: 100%;
  border-radius: 6px;
  object-fit: cover;
  object-position: center top;
  background: #e8eef2;
}

.speaker-photo--antonio {
  object-position: 50% 28%;
}

.speaker-photo--joao {
  object-position: 50% 16%;
}

.speaker-photo--priscila,
.speaker-photo--flavia {
  object-position: 50% 14%;
}

.speaker-photo--rafael-martins {
  object-position: 58% 34%;
}

.speaker-photo--palmiro {
  object-position: 50% 24%;
}

.speaker-photo--rafael-temoteo {
  object-position: 50% 18%;
}

.speaker-photo--alexandre {
  object-position: 50% 22%;
}

.speaker-card > div {
  padding: 0 10px 14px;
}

.speaker-grid strong {
  display: block;
  color: var(--navy);
  font-size: 1.35rem;
  line-height: 1.2;
}

.speaker-role {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.speaker-bio ul {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(6, 19, 38, 0.08);
  color: #475467;
  font-size: 0.88rem;
  line-height: 1.42;
  list-style: none;
}

.speaker-bio li {
  position: relative;
  padding-left: 16px;
}

.speaker-bio li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 6px;
  height: 6px;
  content: "";
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--cyan));
}

.speaker-instagram {
  display: inline-flex;
  width: max-content;
  max-width: 100%;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  padding: 8px 12px;
  overflow-wrap: anywhere;
  border: 1px solid rgba(22, 183, 215, 0.24);
  border-radius: 999px;
  color: var(--blue-dark);
  background: #f4fbfd;
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.2;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.speaker-instagram:hover {
  color: var(--white);
  background: linear-gradient(135deg, var(--green), var(--cyan), var(--blue-dark));
  box-shadow: 0 12px 26px rgba(11, 116, 200, 0.18);
  transform: translateY(-1px);
}

.network {
  background: linear-gradient(90deg, #e8f7eb 0%, #eef8fb 50%, #ffffff 100%);
}

.network-panel {
  padding: 54px;
  border-left: 8px solid var(--green);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 20px 60px rgba(6, 19, 38, 0.08);
}

.network-panel .primary-button {
  grid-column: 1 / -1;
  justify-self: start;
}

.sponsor-block {
  grid-column: 1 / -1;
  display: grid;
  gap: 18px;
  margin-top: 8px;
}

.sponsor-label {
  color: var(--green-deep);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

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

.sponsor-card {
  display: grid;
  height: 132px;
  place-items: center;
  padding: 22px;
  border: 1px solid rgba(6, 19, 38, 0.08);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 42px rgba(6, 19, 38, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.sponsor-card:hover {
  border-color: rgba(22, 183, 215, 0.38);
  box-shadow: 0 22px 54px rgba(6, 19, 38, 0.12);
  transform: translateY(-3px);
}

.sponsor-card img {
  width: 100%;
  max-width: 190px;
  max-height: 78px;
  object-fit: contain;
}

.sponsor-card-wide img {
  max-width: 220px;
}

.venue {
  background: var(--paper);
}

.venue-card {
  padding: 54px;
  border-radius: 8px;
  border: 1px solid rgba(6, 19, 38, 0.08);
  color: var(--ink);
  background: linear-gradient(180deg, var(--white), #f9fcfd);
  box-shadow: 0 22px 70px rgba(5, 19, 38, 0.1);
}

.venue-info {
  display: grid;
  gap: 24px;
  align-content: start;
}

.venue-card h2 {
  color: var(--navy);
}

.venue-card p {
  color: var(--muted);
}

.venue-card dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

.venue-info > .primary-button {
  justify-self: start;
}

.venue-card dl div {
  padding: 22px;
  border: 1px solid rgba(6, 19, 38, 0.08);
  border-radius: 8px;
  background: rgba(6, 19, 38, 0.025);
}

.venue-card dt {
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.venue-card dd {
  margin: 8px 0 0;
  color: var(--navy);
  font-size: 1.2rem;
  font-weight: 800;
}

.venue-map {
  min-height: 430px;
  overflow: hidden;
  border: 1px solid rgba(6, 19, 38, 0.1);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 46px rgba(5, 19, 38, 0.08);
}

.venue-map iframe {
  display: block;
  width: 100%;
  height: 380px;
  border: 0;
}

.venue-map a {
  display: flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  color: var(--navy);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  border-top: 1px solid rgba(6, 19, 38, 0.08);
  background: #f4faf7;
}

.cta-section {
  padding: 110px 24px;
  text-align: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-dark), var(--blue) 48%, var(--green-deep));
}

.cta-inner {
  width: min(850px, 100%);
  margin: 0 auto;
}

.cta-inner p {
  margin: 22px 0 34px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.35rem;
  font-weight: 800;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px max(24px, calc((100vw - 1180px) / 2));
  color: rgba(255, 255, 255, 0.68);
  background: var(--navy);
}

.site-footer img {
  width: 160px;
  height: 42px;
  overflow: hidden;
  border-radius: 4px;
}

.site-footer p {
  margin: 0;
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .site-header {
    top: 10px;
    height: auto;
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    overflow-x: auto;
    padding: 6px 0 2px;
  }

  .hero {
    min-height: auto;
    padding-top: 180px;
  }

  .hero-shell {
    grid-template-columns: 1fr;
    gap: 36px;
    min-height: auto;
  }

  .hero-content {
    width: min(760px, 100%);
  }

  .hero-date-card {
    width: min(620px, 100%);
  }

  .hero-visual,
  .hero-visual img {
    min-height: 430px;
  }

  .hero-info {
    grid-template-columns: 1fr;
  }

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

  .intro-grid,
  .section-heading,
  .tech-band,
  .network-panel,
  .venue-card {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .experience-showcase {
    grid-template-columns: 1fr;
  }

  .experience-card--image,
  .experience-card--lab {
    grid-column: auto;
  }

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

  .experience-lab-visual {
    min-height: 380px;
  }

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

  .speaker-card {
    grid-template-rows: 340px 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 8px;
    width: calc(100% - 16px);
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 8px;
  }

  .brand {
    flex: 0 0 138px;
    width: 138px;
    height: 38px;
  }

  .header-cta {
    display: none;
  }

  .nav {
    order: 3;
    display: flex;
    width: 100%;
    min-width: 0;
    flex: 1 1 auto;
    justify-content: start;
    gap: 8px;
    padding: 0 2px;
    overflow-x: auto;
    font-size: 0.72rem;
    white-space: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex: 0 0 auto;
    padding: 8px 9px;
    border-radius: 6px;
    background: rgba(6, 19, 38, 0.045);
  }

  .hero {
    display: block;
    padding: 148px 16px 48px;
  }

  .hero::after {
    right: -260px;
    bottom: -300px;
    width: 560px;
    height: 560px;
  }

  .hero-backdrop span:nth-child(1) {
    right: -220px;
    width: 430px;
  }

  .hero-backdrop span:nth-child(2) {
    right: -80px;
    width: 260px;
  }

  .hero-backdrop span:nth-child(3) {
    left: -190px;
    width: 330px;
  }

  .hero-shell {
    gap: 30px;
  }

  .hero-content,
  .hero-copy,
  .eyebrow {
    width: 100%;
    max-width: min(100%, 340px);
    overflow-wrap: break-word;
  }

  .hero-date-card,
  .hero-actions {
    max-width: min(100%, 340px);
  }

  .hero h1 {
    width: 100%;
    font-size: clamp(2.45rem, 12vw, 3.2rem);
    line-height: 0.95;
  }

  .eyebrow {
    margin-bottom: 14px;
    font-size: 0.66rem;
  }

  .hero-copy {
    margin-top: 22px;
    font-size: 0.98rem;
    line-height: 1.55;
    hyphens: auto;
  }

  .hero-date-card {
    width: 100%;
    margin-top: 0;
    padding: 20px;
    gap: 18px;
  }

  .hero-date-card img {
    width: 168px;
    height: 44px;
  }

  .hero-date-main {
    padding: 22px 0 18px;
  }

  .hero-date-main span {
    font-size: clamp(3rem, 14vw, 3.55rem);
  }

  .hero-date-main strong {
    font-size: 1.34rem;
  }

  .hero-date-location,
  .hero-date-note {
    padding: 16px;
  }

  .hero-actions {
    display: grid;
    width: 100%;
    max-width: 100%;
    gap: 12px;
    margin-top: 26px;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
    min-height: 48px;
    padding-right: 16px;
    padding-left: 16px;
    line-height: 1.2;
    text-align: center;
  }

  .section,
  .tech-band {
    padding: 64px 16px;
  }

  .section-heading {
    gap: 18px;
  }

  .section-kicker {
    margin-bottom: 12px;
    font-size: 0.68rem;
  }

  h2 {
    font-size: clamp(1.92rem, 9.5vw, 2.35rem);
    line-height: 1.04;
  }

  .intro p,
  .section-heading p,
  .tech-content p,
  .network-panel p,
  .venue-card p,
  .cta-inner p {
    font-size: 1rem;
    line-height: 1.6;
  }

  .section-cta {
    display: grid;
    margin-top: 30px;
  }

  .experience-showcase,
  .speaker-grid,
  .tech-list {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 34px;
  }

  .experience-card,
  .speaker-card {
    min-height: auto;
  }

  .experience-card {
    min-height: 470px;
  }

  .experience-card--lab {
    min-height: auto;
  }

  .experience-card h3 {
    font-size: 1.48rem;
    line-height: 1.08;
  }

  .experience-card p {
    font-size: 0.95rem;
    line-height: 1.55;
  }

  .experience-body,
  .experience-card--lab .experience-body {
    padding: 26px;
  }

  .experience-lab-visual {
    min-height: 330px;
    gap: 8px;
    padding: 12px;
  }

  .experience-points {
    gap: 8px;
    margin-top: 20px;
  }

  .experience-points span {
    min-height: 34px;
    font-size: 0.78rem;
  }

  .speaker-card {
    grid-template-rows: clamp(286px, 82vw, 340px) 1fr;
    gap: 16px;
    padding: 12px;
  }

  .speaker-card > div {
    padding: 0 8px 12px;
  }

  .speaker-grid strong {
    font-size: 1.16rem;
    line-height: 1.22;
  }

  .speaker-role {
    margin-top: 8px;
    font-size: 0.9rem;
    line-height: 1.45;
  }

  .speaker-bio ul {
    gap: 7px;
    margin-top: 14px;
    padding-top: 14px;
    font-size: 0.84rem;
    line-height: 1.42;
  }

  .tech-band {
    gap: 34px;
  }

  .tech-content p {
    margin-top: 18px;
  }

  .tech-card div {
    padding: 16px;
  }

  .tech-card h3 {
    font-size: 1rem;
  }

  .tech-card p {
    font-size: 0.88rem;
  }

  .network-panel,
  .venue-card {
    gap: 24px;
    padding: 28px;
  }

  .network-panel {
    border-top: 6px solid var(--green);
    border-left: 0;
  }

  .venue-map {
    min-height: 318px;
  }

  .venue-map iframe {
    height: 264px;
  }

  .venue-card dl div {
    padding: 18px;
  }

  .venue-card dd {
    font-size: 1.05rem;
  }

  .sponsor-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .sponsor-card {
    height: 112px;
    padding: 18px;
  }

  .sponsor-card img {
    max-height: 66px;
  }

  .cta-section {
    padding: 74px 16px;
  }

  .cta-inner p {
    margin: 18px 0 28px;
    font-size: 1.05rem;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 16px;
  }
}

@media (max-width: 420px) {
  html {
    scroll-padding-top: 88px;
  }

  .brand {
    flex-basis: 122px;
    width: 122px;
    height: 34px;
  }

  .nav {
    gap: 6px;
    font-size: 0.68rem;
  }

  .nav a {
    padding: 7px 8px;
  }

  .hero {
    padding-top: 136px;
  }

  .hero h1 {
    font-size: clamp(2.22rem, 12vw, 2.82rem);
  }

  .hero-date-card {
    padding: 18px;
  }

  .hero-date-main span {
    font-size: clamp(2.8rem, 14vw, 3.25rem);
  }

  .hero-date-main strong,
  .hero-date-location strong {
    font-size: 1.15rem;
  }

  .hero-date-note strong {
    font-size: 0.9rem;
  }

  .section,
  .tech-band {
    padding-right: 14px;
    padding-left: 14px;
  }

  .network-panel,
  .venue-card {
    padding: 22px;
  }

  .speaker-card {
    grid-template-rows: clamp(274px, 84vw, 318px) 1fr;
  }

  .site-footer {
    gap: 14px;
  }
}