:root {
  --navy: #081c3d;
  --blue: #174aa5;
  --blue-2: #2870cc;
  --sky: #eaf2ff;
  --green: #16814f;
  --cream: #f7f5ed;
  --paper: #ffffff;
  --ink: #10213c;
  --muted: #5c6980;
  --line: #dbe3ef;
  --shadow: 0 30px 80px rgba(9, 30, 67, 0.13);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: "DM Sans", "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

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

h1,
h2,
h3 {
  font-family: "Manrope", "Segoe UI", sans-serif;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 5.2vw, 4.65rem);
}

p {
  color: var(--muted);
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  padding: 0.65rem 0.9rem;
  transform: translateY(-150%);
  border-radius: 8px;
  color: #fff;
  background: var(--navy);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
}

.site-header.is-scrolled {
  position: fixed;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(20, 56, 109, 0.1);
  box-shadow: 0 8px 24px rgba(9, 29, 62, 0.08);
  backdrop-filter: blur(16px);
  animation: header-in 0.25s ease both;
}

@keyframes header-in {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

.nav-wrap {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(3, 20, 52, 0.18));
}

.brand span {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  line-height: 1;
}

.brand strong {
  font-family: "Manrope", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.brand small {
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.65rem;
}

.site-nav a {
  position: relative;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  background: currentColor;
  transition: transform 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 0.68rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
}

.is-scrolled .nav-cta {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  border: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  font-weight: 700;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  width: 23px;
  height: 2px;
  display: block;
  background: currentColor;
  transition: transform 0.2s ease;
}

.menu-icon {
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-icon::before { top: -7px; }
.menu-icon::after { top: 7px; }

.hero {
  position: relative;
  min-height: 820px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 78% 40%, rgba(65, 126, 221, 0.42), transparent 28%),
    linear-gradient(125deg, #071936 0%, #0d3475 56%, #1e60ba 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image: linear-gradient(rgba(255, 255, 255, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.13) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 65%);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-top: 6rem;
  padding-bottom: 3rem;
}

.eyebrow,
.kicker {
  margin-bottom: 1rem;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: #b9d4ff;
  font-size: clamp(0.95rem, 1.35vw, 1.15rem);
  letter-spacing: 0.12em;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: #83b3ff;
}

.hero h1 {
  max-width: 770px;
  margin-bottom: 1.45rem;
  font-size: clamp(3rem, 6vw, 6.4rem);
  letter-spacing: -0.055em;
}

.hero h1 em {
  color: #b9d4ff;
  font-style: normal;
}

.hero-intro {
  max-width: 670px;
  color: rgba(255, 255, 255, 0.77);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0 3rem;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.35rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--navy);
  background: #fff;
  box-shadow: 0 12px 30px rgba(1, 12, 35, 0.2);
}

.button-secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.06);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.3rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-facts div {
  display: grid;
  gap: 0.2rem;
}

.hero-facts span {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-facts strong {
  font-size: 0.95rem;
}

.hero-fact-date {
  margin-block: -0.65rem;
  padding: 0.65rem 1rem;
  border: 1px solid rgba(255, 221, 105, 0.55);
  border-radius: 12px;
  background: rgba(255, 215, 74, 0.14);
  box-shadow: 0 8px 24px rgba(1, 12, 35, 0.12);
}

.hero-fact-date span {
  color: #ffe891;
}

.hero-fact-date strong {
  color: #fff4c2;
  font-size: 1.05rem;
}

.hero-visual {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
}

.visual-card {
  position: relative;
  z-index: 2;
  width: min(455px, 88vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: 1.3rem;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 40px 100px rgba(0, 13, 42, 0.36);
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.theme-mark {
  width: 100%;
  border-radius: 50%;
}

.visual-orbit {
  position: absolute;
  width: 560px;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
}

.visual-orbit::before,
.visual-orbit::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.visual-orbit::before { inset: 42px; }
.visual-orbit::after { inset: -50px; }

.date-badge {
  position: absolute;
  z-index: 3;
  right: -5px;
  bottom: 80px;
  width: 130px;
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 7px solid #164998;
  border-radius: 50%;
  color: var(--navy);
  background: #fff;
  box-shadow: 0 14px 35px rgba(0, 16, 51, 0.28);
}

.date-badge strong {
  font-family: "Manrope", sans-serif;
  font-size: 2.4rem;
  line-height: 1;
}

.date-badge span {
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1.15;
  text-transform: uppercase;
}

.hero-shape {
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  transform: rotate(-28deg);
}

.hero-shape-one { width: 340px; height: 90px; left: -120px; bottom: 60px; }
.hero-shape-two { width: 450px; height: 120px; right: -180px; top: 125px; }

.event-bar {
  color: #fff;
  background: #0e3980;
}

.event-bar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.event-item {
  min-height: 132px;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 1.7rem;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.event-item:last-child {
  border: 0;
}

.event-number {
  color: rgba(255, 255, 255, 0.25);
  font-family: "Manrope", sans-serif;
  font-size: 2.25rem;
  font-weight: 800;
}

.event-item div {
  display: grid;
  gap: 0.25rem;
}

.event-item small {
  color: #a9c8ff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.event-item strong {
  line-height: 1.3;
}

.section {
  padding: 8rem 0;
}

.about-section {
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(3rem, 9vw, 8rem);
  align-items: start;
}

.section-heading h2 {
  max-width: 600px;
}

.about-copy {
  max-width: 680px;
}

.about-copy p {
  font-size: 1.05rem;
}

.about-copy .lead {
  color: var(--ink);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.55;
}

.image-story {
  position: relative;
  min-height: 560px;
  margin-top: 6rem;
}

.story-image {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-image-main {
  inset: 0 22% 0 0;
}

.story-image-small {
  z-index: 2;
  right: 0;
  bottom: -45px;
  width: 34%;
  height: 56%;
  border: 10px solid #fff;
}

.story-quote {
  position: absolute;
  z-index: 3;
  top: 30px;
  right: 4%;
  width: 290px;
  padding: 2rem;
  border-radius: 20px;
  color: #fff;
  background: var(--blue);
  box-shadow: 0 22px 60px rgba(15, 64, 145, 0.28);
}

.story-quote span {
  display: block;
  height: 36px;
  font-family: Georgia, serif;
  font-size: 4rem;
  line-height: 1;
  opacity: 0.55;
}

.story-quote p {
  margin: 0;
  color: #fff;
  font-family: "Manrope", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
}

.themes-section {
  color: #fff;
  background: var(--navy);
}

.themes-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: end;
  gap: 3rem;
  margin-bottom: 4rem;
}

.themes-heading h2 {
  margin: 0;
  color: #fff;
}

.themes-heading > p {
  max-width: 460px;
  margin: 0 0 0.5rem auto;
  color: #adbbd1;
}

.kicker-light {
  color: #8bb7ff;
}

.themes-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.13);
}

.theme-card {
  position: relative;
  min-height: 485px;
  padding: 2.25rem;
  overflow: hidden;
  background: #0d254c;
}

.theme-card::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 270px;
  height: 270px;
  border: 45px solid var(--theme-color);
  border-radius: 50%;
  opacity: 0.12;
}

.theme-blue { --theme-color: #4a89f5; }
.theme-green { --theme-color: #4dcc7a; }
.theme-lime { --theme-color: #a6d64f; }
.theme-indigo { --theme-color: #7e7df6; }
.theme-orange { --theme-color: #ff9e42; }
.theme-teal { --theme-color: #39c7c0; }
.theme-navy { --theme-color: #5994f6; }
.theme-purple { --theme-color: #a978ef; }
.theme-rose { --theme-color: #ee6d9c; }

.theme-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.6rem;
}

.theme-top span {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: var(--theme-color);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
}

.theme-top p {
  margin: 0;
  color: var(--theme-color);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.theme-card h3 {
  max-width: 520px;
  margin-bottom: 1.6rem;
  color: #fff;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
}

.theme-card ul {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem 1.2rem;
  list-style: none;
}

.theme-card li {
  position: relative;
  padding-left: 1rem;
  color: #b9c6da;
  font-size: 0.91rem;
}

.theme-card li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--theme-color);
}

.theme-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.leadership-section {
  background: #fff;
}

.leadership-heading {
  margin-inline: auto;
  text-align: center;
}

.leadership-heading h2 {
  margin-inline: auto;
}

.leadership-heading > p:last-child {
  max-width: 620px;
  margin: 0 auto;
  font-size: 1.05rem;
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
}

.leader-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(12, 33, 72, 0.09);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.leader-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 25px 55px rgba(12, 33, 72, 0.14);
}

.leader-photo {
  aspect-ratio: 4 / 4.6;
  overflow: hidden;
  background: var(--sky);
}

.leader-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.leader-copy {
  padding: 1.45rem 1.35rem 1.6rem;
}

.leader-role {
  margin-bottom: 0.65rem;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.leader-copy h3 {
  margin-bottom: 0.55rem;
  font-size: 1.25rem;
  line-height: 1.25;
}

.leader-copy > p:last-child {
  margin-bottom: 0;
  font-size: 0.9rem;
  line-height: 1.5;
}

.institutions-section {
  background: var(--cream);
}

.section-heading.compact {
  max-width: 800px;
  margin-bottom: 4rem;
}

.institution-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 2rem;
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 15px 50px rgba(12, 33, 72, 0.08);
}

.institution-feature.reverse .institution-image {
  order: 2;
}

.institution-image {
  min-height: 590px;
}

.institution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.institution-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 5vw, 4.5rem);
}

.institution-index {
  color: var(--blue);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.institution-copy h3 {
  margin-bottom: 1.5rem;
  font-size: clamp(2rem, 3.5vw, 3.2rem);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-top: 1.2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.stat-row div {
  display: grid;
  gap: 0.2rem;
}

.stat-row strong {
  color: var(--blue);
  font-family: "Manrope", sans-serif;
  font-size: 1.4rem;
}

.stat-row span {
  color: var(--muted);
  font-size: 0.74rem;
}

.registration-section {
  background: var(--cream);
}

.registration-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
}

.registration-intro > p:not(.kicker) {
  max-width: 520px;
  font-size: 1.08rem;
}

.deadline-card {
  width: fit-content;
  display: grid;
  gap: 0.25rem;
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border-left: 5px solid #f0b429;
  border-radius: 0 14px 14px 0;
  background: #fff8dc;
  box-shadow: 0 12px 30px rgba(89, 63, 0, 0.08);
}

.deadline-card span {
  color: #826313;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.deadline-card strong {
  color: #5f4505;
  font-family: "Manrope", sans-serif;
  font-size: 1.35rem;
}

.fee-card {
  padding: clamp(1.6rem, 4vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.fee-card-heading {
  margin-bottom: 1.4rem;
}

.fee-card-heading .kicker {
  margin-bottom: 0.5rem;
}

.fee-card-heading h3 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.fee-table {
  border-top: 1px solid var(--line);
}

.fee-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  padding: 1rem 0.25rem;
  border-bottom: 1px solid var(--line);
}

.fee-row strong {
  color: var(--blue);
}

.fee-row-heading {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.submission-section {
  color: #fff;
  background: linear-gradient(125deg, #15499e, #0a2961);
}

.submission-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.submission-title h2 {
  color: #fff;
}

.submission-title > p:last-child {
  max-width: 500px;
  color: #bdd2f4;
  font-size: 1.1rem;
}

.submission-card {
  position: relative;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 30px 70px rgba(4, 18, 50, 0.25);
  backdrop-filter: blur(10px);
}

.paper-icon {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: #fff;
  font-size: 1.4rem;
  font-weight: 800;
}

.submission-card h3 {
  padding-right: 3rem;
  color: #fff;
  font-size: 1.8rem;
}

.submission-card p {
  color: #d6e3f8;
}

.guideline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.8rem 0;
}

.guideline-list span {
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.submission-note {
  margin-bottom: 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.88rem;
}

.site-footer {
  padding: 5rem 0 1.5rem;
  color: #fff;
  background: #06152f;
}

.footer-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr 0.5fr;
  gap: 4rem;
  padding-bottom: 4rem;
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
}

.footer-brand img {
  width: 66px;
  height: 66px;
  object-fit: contain;
}

.footer-brand div,
.footer-organizer,
.footer-links {
  display: grid;
  align-content: start;
  gap: 0.25rem;
}

.footer-brand strong {
  font-family: "Manrope", sans-serif;
  font-size: 1.3rem;
}

.footer-brand span,
.footer-organizer span {
  color: #9dacc3;
}

.footer-organizer p {
  margin-bottom: 0.2rem;
  color: #6e83a4;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-links {
  gap: 0.65rem;
}

.footer-links a,
.footer-bottom a {
  color: #cbd6e7;
  text-decoration: none;
}

.footer-links a:hover,
.footer-bottom a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-bottom p,
.footer-bottom a {
  margin: 0;
  color: #7084a3;
  font-size: 0.78rem;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 980px) {
  .menu-toggle { display: inline-flex; z-index: 102; }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 101;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.2rem;
    transform: translateX(100%);
    color: #fff;
    background: var(--navy);
    transition: transform 0.28s ease;
  }

  .site-nav.open { transform: translateX(0); }
  .site-nav a { font-size: 1.25rem; }
  .nav-cta { border-color: rgba(255, 255, 255, 0.4) !important; background: transparent !important; }

  .menu-open .site-header,
  .menu-open .site-header.is-scrolled { color: #fff; }

  .menu-open .menu-icon { background: transparent; }
  .menu-open .menu-icon::before { top: 0; transform: rotate(45deg); }
  .menu-open .menu-icon::after { top: 0; transform: rotate(-45deg); }

  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 10rem; padding-bottom: 5rem; }
  .hero-copy { text-align: center; }
  .hero h1, .hero-intro { margin-inline: auto; }
  .eyebrow, .hero-actions, .hero-facts { justify-content: center; }
  .hero-visual { min-height: 500px; }

  .event-bar-grid { grid-template-columns: 1fr; }
  .event-item { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); }

  .about-grid,
  .themes-heading,
  .registration-grid,
  .submission-grid { grid-template-columns: 1fr; }

  .themes-heading > p { margin-left: 0; }

  .institution-feature { grid-template-columns: 1fr; }
  .institution-feature.reverse .institution-image { order: 0; }
  .institution-image { min-height: 420px; }

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

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-column: 1 / -1; grid-template-columns: repeat(4, auto); justify-content: start; gap: 1.5rem; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1180px); }
  .nav-wrap { min-height: 72px; }
  .brand img { width: 44px; height: 44px; }
  .menu-label { display: none; }

  .hero-grid { padding-top: 8.5rem; }
  .hero h1 { font-size: clamp(2.7rem, 14vw, 4.5rem); }
  .hero-facts { display: grid; grid-template-columns: 1fr 1fr; }
  .hero-visual { min-height: 380px; }
  .visual-card { width: min(340px, 85vw); }
  .visual-orbit { width: 410px; }
  .date-badge { right: 0; bottom: 20px; width: 105px; height: 105px; }
  .date-badge strong { font-size: 2rem; }

  .section { padding: 5.5rem 0; }
  .about-grid { gap: 2rem; }
  .image-story { min-height: 530px; margin-top: 3rem; }
  .story-image-main { inset: 0 0 90px; }
  .story-image-small { width: 50%; height: 40%; bottom: 0; }
  .story-quote { top: auto; right: auto; bottom: 25px; left: 14px; width: 62%; padding: 1.4rem; }

  .themes-grid { grid-template-columns: 1fr; }
  .theme-card:last-child:nth-child(odd) { grid-column: auto; }
  .theme-card { min-height: auto; padding: 1.6rem; }
  .theme-card ul { grid-template-columns: 1fr; }

  .institution-image { min-height: 300px; }
  .institution-copy { padding: 2rem 1.4rem; }
  .stat-row { grid-template-columns: 1fr; }

  .leadership-grid { grid-template-columns: 1fr; }
  .leader-photo { aspect-ratio: 4 / 4.2; }

  .footer-grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .footer-links { grid-column: auto; grid-template-columns: repeat(2, auto); }
  .footer-bottom { flex-direction: column; gap: 0.7rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}