:root {
  --navy-950: #07162d;
  --navy-900: #0b1d3a;
  --navy-800: #102a52;
  --navy-700: #173d73;
  --red-700: #b4232f;
  --red-600: #d32f3d;
  --red-500: #e53f4d;
  --red-100: #fff0f1;
  --white: #ffffff;
  --paper: #f7f8fb;
  --ink: #111827;
  --muted: #667085;
  --line: #e6e9ef;
  --container: 1180px;
}

/* ---------- Base ---------- */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
  font: inherit;
}

section {
  scroll-margin-top: 82px;
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: 10px;
  left: -9999px;
  z-index: 9999;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff;
}

.skip-link:focus {
  left: 10px;
}

.section {
  padding: 72px 0;
}

.centered {
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--red-600);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.section-tag::before {
  content: "";
  width: 24px;
  height: 2px;
  background: currentColor;
}

.section-tag.light {
  color: #ff9aa4;
}

.section-heading h2,
.intro h2,
.registration h2,
.confirmation h2 {
  margin: 10px 0 14px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -.035em;
}

.section-heading p,
.intro p,
.registration p,
.confirmation p {
  max-width: 740px;
  color: var(--muted);
}

.centered p {
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 0;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

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

.btn-primary {
  color: #fff;
  background: var(--red-500);
  box-shadow: 0 12px 28px rgba(229, 63, 77, .22);
}

.btn-ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .24);
  background: rgba(7, 22, 45, .18);
  backdrop-filter: blur(8px);
}

.btn-secondary {
  color: #fff;
  background: var(--navy-900);
}

.btn-white {
  color: var(--navy-900);
  background: #fff;
  box-shadow: 0 12px 24px rgba(7, 22, 45, .16);
}

.btn-wa {
  width: 100%;
  color: #fff;
  background: #1fa855;
}


/* ---------- Navbar ---------- */
.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  background: rgba(7, 22, 45, .84);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  display: flex;
  height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  letter-spacing: -.02em;
}

.brand img {
  width: 44px;
  height: 34px;
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 2px 8px rgba(255, 255, 255, .08));
}


.brand-home-link {
  display: inline-flex;
  align-items: center;
  color: inherit;
  font: inherit;
  font-weight: 800;
  letter-spacing: -.02em;
  cursor: pointer;
}

.brand-home-link:hover,
.brand-home-link:focus-visible {
  color: #fff;
}

.brand-home-link:focus-visible {
  outline: 2px solid rgba(255, 255, 255, .72);
  outline-offset: 5px;
  border-radius: 4px;
}

.protected-logo {
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: rgba(255, 255, 255, .82);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:hover {
  color: #fff;
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  padding: 8px;
  border: 0;
  background: transparent;
}

.menu-btn span {
  display: block;
  height: 2px;
  margin: 6px 0;
  border-radius: 2px;
  background: #fff;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  padding: clamp(112px, 14vh, 138px) 0 clamp(52px, 8vh, 76px);
  color: #fff;
  background-color: var(--navy-950);
  background-image: url("assets/hero-bg.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(4, 13, 28, .48) 0%,
    rgba(7, 22, 45, .24) 45%,
    rgba(7, 22, 45, .60) 100%
  );
}

.hero-noise {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .08;
  background-image: radial-gradient(rgba(255, 255, 255, .18) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  width: min(880px, 100%);
  flex-direction: column;
  align-items: center;
  margin-inline: auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  padding: 7px 13px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 999px;
  background: rgba(7, 22, 45, .22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
  backdrop-filter: blur(8px);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 18px 0 12px;
  color: rgba(255, 255, 255, .68);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: .19em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  line-height: 1;
  letter-spacing: -.045em;
}

.hero-title-top {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(14px, 1.45vw, 19px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.hero-title-main {
  display: block;
  color: #fff;
  font-size: clamp(58px, 7.3vw, 94px);
  font-weight: 900;
  line-height: .9;
  letter-spacing: -.065em;
}

.hero-title-accent {
  color: #ff5d6a;
}

.hero-theme {
  max-width: 620px;
  margin: 19px auto 0;
  color: rgba(255, 255, 255, .79);
  font-size: clamp(14px, 1.45vw, 17px);
  line-height: 1.55;
}

.hero-date {
  margin: 8px auto 0;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .04em;
}

.hero-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-top: 17px;
}

.hero-divider span {
  width: 34px;
  height: 3px;
  border-radius: 999px;
}

.hero-divider span:first-child {
  background: #fff;
}

.hero-divider span:last-child {
  background: var(--red-500);
}

.hero-actions {
  display: grid;
  width: min(480px, 100%);
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}

.hero-actions .btn {
  width: 100%;
  min-height: 46px;
  padding-inline: 14px;
  font-size: 13px;
}

.hero-note {
  max-width: 430px;
  margin: 12px auto 0;
  color: rgba(255, 255, 255, .46);
  font-size: 10px;
  line-height: 1.45;
}

.hero-bottom-zone {
  width: min(540px, 100%);
  margin-top: 16px;
}

.hero-prizes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin-bottom: 12px;
}

.hero-prize {
  min-width: 0;
  padding: 9px 8px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 11px;
  background: rgba(7, 22, 45, .34);
  backdrop-filter: blur(9px);
  text-align: center;
}

.hero-prize.first {
  color: var(--navy-950);
  border-color: rgba(255, 255, 255, .92);
  background: rgba(255, 255, 255, .92);
}

.hero-prize span,
.hero-prize strong {
  display: block;
}

.hero-prize span {
  color: rgba(255, 255, 255, .68);
  font-size: 9px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero-prize.first span {
  color: var(--red-700);
}

.hero-prize strong {
  margin-top: 3px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.15;
  white-space: nowrap;
}

.hero-countdown-wrap {
  width: 100%;
}

.countdown-label {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, .58);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.countdown {
  display: grid;
  width: 100%;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 16px;
  background: rgba(7, 22, 45, .34);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .10);
  backdrop-filter: blur(10px);
}

.countdown div {
  min-width: 0;
  padding: 13px 10px 11px;
}

.countdown div + div {
  border-left: 1px solid rgba(255, 255, 255, .11);
}

.countdown strong {
  display: block;
  font-size: 27px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.countdown span {
  display: block;
  margin-top: 5px;
  color: rgba(255, 255, 255, .55);
  font-size: 9px;
  letter-spacing: .09em;
  text-transform: uppercase;
}

/* ---------- Intro ---------- */
.intro {
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 8% 18%, rgba(23, 61, 115, .055) 0 2px, transparent 2.5px),
    radial-gradient(circle at 92% 82%, rgba(211, 47, 61, .045) 0 2px, transparent 2.5px),
    linear-gradient(135deg, transparent 0 47%, rgba(23, 61, 115, .028) 47% 48%, transparent 48% 100%),
    linear-gradient(45deg, transparent 0 47%, rgba(211, 47, 61, .020) 47% 48%, transparent 48% 100%);
  background-size: 42px 42px, 56px 56px, 120px 120px, 150px 150px;
  background-position: 0 0, 18px 12px, 0 0, 20px 30px;
}

.intro-centered {
  max-width: 960px;
  text-align: center;
}

.intro-centered .section-tag {
  justify-content: center;
}

.intro-centered h2 {
  max-width: 860px;
  margin: 10px auto 20px;
}

.intro-copy {
  max-width: 820px;
  margin: 0 auto;
}

.intro-copy p {
  margin: 0 auto 12px;
}

.event-summary {
  display: grid;
  max-width: 900px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 30px auto 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.event-summary-group {
  padding: 5px 26px;
}

.event-summary-group + .event-summary-group {
  border-left: 1px solid var(--line);
}

.event-summary-row {
  display: grid;
  min-height: 56px;
  grid-template-columns: 86px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  text-align: left;
}

.event-summary-row + .event-summary-row {
  border-top: 1px solid var(--line);
}

.event-summary-row span {
  color: var(--red-600);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.event-summary-row strong {
  color: var(--navy-900);
  font-size: 13px;
  line-height: 1.35;
}

/* ---------- Schedule ---------- */
.schedule {
  position: relative;
  isolation: isolate;
  padding-top: 72px;
  padding-bottom: 72px;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(247, 248, 251, .88), rgba(247, 248, 251, .88)),
    url("assets/bg-schedule.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.schedule-centered {
  max-width: 820px;
  text-align: center;
}

.schedule-heading .section-tag {
  justify-content: center;
}

.schedule-heading h2 {
  margin-bottom: 18px;
}

.agenda-list {
  max-width: 520px;
  margin: 0 auto;
}

.agenda-item {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px;
  text-align: center;
}

.agenda-item + .agenda-item {
  margin-top: 6px;
}

.agenda-item span {
  flex: 0 0 auto;
  color: var(--red-600);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
}

.agenda-item h3 {
  margin: 0;
  color: var(--navy-900);
  font-size: 15px;
  line-height: 1.2;
}

/* ---------- Participant information ---------- */
.participant-info {
  position: relative;
  background:
    radial-gradient(circle at 8% 18%, rgba(23, 61, 115, .055), transparent 22%),
    radial-gradient(circle at 92% 82%, rgba(229, 63, 77, .045), transparent 24%),
    #fff;
}

.participant-info-inner {
  max-width: 920px;
}

.participant-info-heading h2 {
  margin-bottom: 28px;
}

.participant-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 820px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.participant-column {
  min-width: 0;
  padding: 24px 30px;
}

.participant-column + .participant-column {
  border-left: 1px solid var(--line);
}

.participant-column h3 {
  margin: 0 0 14px;
  color: var(--navy-900);
  font-size: 16px;
  line-height: 1.25;
  text-align: center;
}

.participant-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.participant-list li {
  position: relative;
  padding-left: 22px;
  color: #344054;
  font-size: 14px;
  line-height: 1.35;
}

.participant-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--red-600);
  font-weight: 900;
}

/* ---------- Location ---------- */
.location {
  padding-top: 72px;
  padding-bottom: 72px;
  background-color: #fff;
  background-image:
    radial-gradient(circle at 12% 22%, transparent 0 38px, rgba(23, 61, 115, .035) 39px 40px, transparent 41px 70px, rgba(23, 61, 115, .022) 71px 72px, transparent 73px),
    radial-gradient(circle at 88% 76%, transparent 0 48px, rgba(211, 47, 61, .030) 49px 50px, transparent 51px 88px, rgba(211, 47, 61, .018) 89px 90px, transparent 91px),
    linear-gradient(135deg, rgba(247, 248, 251, .72), rgba(255, 255, 255, .98));
  background-repeat: no-repeat;
  background-size: 280px 280px, 340px 340px, 100% 100%;
  background-position: -60px -40px, calc(100% + 80px) calc(100% + 60px), center;
}

.location-heading h2 {
  margin-bottom: 8px;
}

.location-heading p {
  margin-top: 0;
  margin-inline: auto;
}

.map-card {
  max-width: 1000px;
  margin: 22px auto 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.map-card iframe {
  display: block;
  width: 100%;
  height: 400px;
  border: 0;
}

.map-info {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 0 0;
  background: #fff;
}

.map-info .btn {
  min-width: 190px;
}

/* ---------- Registration ---------- */
.registration {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: 66px;
  padding-bottom: 66px;
  color: #fff;
  background-color: var(--navy-950);
  background-image: url("assets/bg-registration.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.registration::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(4, 13, 28, .91) 0%,
    rgba(7, 22, 45, .79) 34%,
    rgba(11, 35, 70, .61) 68%,
    rgba(23, 61, 115, .45) 100%
  );
}

.registration > .container {
  position: relative;
  z-index: 2;
}

.registration-card {
  display: grid;
  max-width: 940px;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: 44px;
}

.registration-copy h2 {
  max-width: 560px;
  margin: 8px 0;
  font-size: clamp(27px, 3.5vw, 40px);
  line-height: 1.08;
}

.registration-copy > p {
  max-width: 560px;
  margin: 0;
  color: rgba(255, 255, 255, .72);
}


.registration-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.registration .btn-white {
  min-width: 210px;
}

.registration .btn-rule {
  min-width: 190px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .34);
  background: rgba(255, 255, 255, .06);
  box-shadow: none;
  backdrop-filter: blur(8px);
}

.registration .btn-rule:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, .55);
  background: rgba(255, 255, 255, .12);
}

.qr-wrap {
  text-align: center;
}

.qr-box {
  display: grid;
  width: 190px;
  aspect-ratio: 1;
  place-items: center;
  margin: 0 auto;
  overflow: hidden;
  padding: 10px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(0, 0, 0, .20);
}

.qr-box #qrImage {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-box #qrImage[hidden],
.qr-box #qrFallback[hidden] {
  display: none !important;
}

.qr-placeholder {
  display: grid;
  place-items: center;
  gap: 8px;
  color: var(--navy-900);
}

.qr-placeholder span {
  display: grid;
  width: 74px;
  height: 74px;
  place-items: center;
  border: 4px solid var(--navy-900);
  font-size: 24px;
  font-weight: 900;
}

.qr-placeholder small {
  max-width: 160px;
  color: var(--muted);
}

.qr-wrap p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, .72);
  font-size: 12px;
}

/* ---------- Confirmation ---------- */
.confirmation {
  padding-top: 58px;
  padding-bottom: 58px;
  background-color: #fff;
  background-image:
    radial-gradient(circle at 0% 0%, rgba(23, 61, 115, .065), transparent 24%),
    radial-gradient(circle at 100% 100%, rgba(211, 47, 61, .055), transparent 26%),
    repeating-linear-gradient(135deg, rgba(23, 61, 115, .018) 0 1px, transparent 1px 32px);
}

.confirm-card {
  display: grid;
  max-width: 900px;
  grid-template-columns: minmax(0, .9fr) minmax(340px, 1.1fr);
  align-items: center;
  gap: 32px;
}

.confirm-copy h2 {
  margin: 7px 0 8px;
  font-size: clamp(25px, 3vw, 36px);
  line-height: 1.08;
}

.confirm-copy p {
  max-width: 390px;
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
}

.confirm-form {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
}

.confirm-form label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 800;
}

.confirm-form input {
  width: 100%;
  height: 46px;
  margin-bottom: 9px;
  padding: 0 14px;
  border: 1px solid #d7dce6;
  border-radius: 12px;
  outline: none;
  background: #fff;
}

.confirm-form input:focus {
  border-color: var(--navy-700);
  box-shadow: 0 0 0 4px rgba(23, 61, 115, .08);
}

.confirm-form small {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  text-align: center;
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0 24px;
  color: rgba(255, 255, 255, .78);
  background-color: var(--navy-950);
  background-image:
    linear-gradient(60deg, transparent 0 48%, rgba(255, 255, 255, .025) 48% 49%, transparent 49% 100%),
    linear-gradient(-60deg, transparent 0 48%, rgba(255, 255, 255, .018) 48% 49%, transparent 49% 100%),
    radial-gradient(circle at 82% 20%, rgba(229, 63, 77, .07), transparent 24%),
    linear-gradient(180deg, #07162d, #061225);
  background-size: 84px 84px, 84px 84px, 100% 100%, 100% 100%;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 1.25fr 1fr .9fr;
  align-items: start;
  gap: 18px;
}

.footer-grid > div {
  min-width: 0;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.footer-brand img {
  width: 62px;
  height: 48px;
  padding: 5px;
  border-radius: 10px;
  object-fit: contain;
  background: rgba(255, 255, 255, .96);
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand span {
  color: rgba(255, 255, 255, .52);
  font-size: 12px;
}

.footer-label {
  color: rgba(255, 255, 255, .42);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.footer p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.45;
}

.footer a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .10);
  color: rgba(255, 255, 255, .46);
  font-size: 12px;
}

/* ---------- Tablet ---------- */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-radius: 16px;
    background: rgba(7, 22, 45, .98);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .28);
  }

  .nav-links.open {
    display: flex;
  }

  .menu-btn {
    display: block;
  }

  .registration-card,
  .confirm-card {
    grid-template-columns: 1fr;
  }

  .registration-card {
    max-width: 560px;
    gap: 24px;
    text-align: center;
  }

  .registration-copy .section-tag {
    justify-content: center;
  }

  .registration-copy h2,
  .registration-copy > p {
    margin-left: auto;
    margin-right: auto;
  }

  .registration-actions {
    justify-content: center;
  }

  .confirm-card {
    max-width: 520px;
    gap: 16px;
  }

  .confirm-copy {
    text-align: center;
  }

  .confirm-copy .section-tag {
    justify-content: center;
  }

  .confirm-copy p {
    margin-inline: auto;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }
}

/* ---------- Mobile ---------- */
@media (max-width: 620px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  section {
    scroll-margin-top: 72px;
  }

  .section {
    padding: 56px 0;
  }

  .nav-wrap {
    height: 64px;
  }

  .nav-links {
    top: 64px;
  }

  .hero {
    height: 100svh;
    min-height: 100svh;
    padding: calc(64px + env(safe-area-inset-top) + 12px) 0 calc(12px + env(safe-area-inset-bottom));
    background-position: center center;
    background-attachment: fixed;
  }

  .hero-content {
    height: 100%;
    justify-content: center;
    padding-bottom: 154px;
  }

  .hero-badge {
    padding: 6px 10px;
    font-size: 8px;
    line-height: 1.25;
    letter-spacing: .09em;
  }

  .eyebrow {
    margin: 14px 0 9px;
    font-size: 8.5px;
    letter-spacing: .14em;
  }

  .hero-title-top {
    margin-bottom: 7px;
    font-size: clamp(10px, 3vw, 12px);
    letter-spacing: .16em;
  }

  .hero-title-main {
    font-size: clamp(47px, 14.2vw, 60px);
  }

  .hero-theme {
    max-width: 310px;
    margin-top: 14px;
    padding-inline: 8px;
    font-size: 12.5px;
    line-height: 1.45;
  }

  .hero-date {
    margin-top: 7px;
    font-size: 11px;
    line-height: 1.25;
  }

  .hero-divider {
    margin-top: 11px;
  }

  .hero-divider span {
    width: 26px;
    height: 2px;
  }

  .hero-actions {
    width: min(350px, 100%);
    grid-template-columns: 1fr;
    gap: 7px;
    margin-top: 14px;
  }

  .hero-actions .btn {
    min-height: 41px;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 11px;
  }

  .hero-note {
    max-width: 310px;
    margin-top: 9px;
    font-size: 8.5px;
  }

  .hero-bottom-zone {
    position: absolute;
    bottom: 0;
    left: 50%;
    z-index: 3;
    width: min(100%, 380px);
    margin: 0;
    transform: translateX(-50%);
  }

  .hero-prizes {
    gap: 5px;
    margin-bottom: 8px;
  }

  .hero-prize {
    padding: 7px 4px;
    border-radius: 9px;
  }

  .hero-prize span {
    font-size: 7px;
    letter-spacing: .05em;
  }

  .hero-prize strong {
    font-size: 10.5px;
  }

  .countdown-label {
    margin-bottom: 5px;
    color: rgba(255, 255, 255, .68);
    font-size: 8px;
  }

  .countdown {
    border-radius: 14px;
  }

  .countdown div {
    padding: 10px 4px 9px;
  }

  .countdown strong {
    font-size: 21px;
  }

  .countdown span {
    margin-top: 4px;
    font-size: 7.5px;
  }

  .intro {
    padding-top: 62px;
    padding-bottom: 62px;
    background-size: 48px 48px, 64px 64px, 140px 140px, 170px 170px;
  }

  .event-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 24px;
  }

  .event-summary-group {
    padding: 4px 8px;
  }

  .event-summary-row {
    min-height: 62px;
    grid-template-columns: 1fr;
    align-content: center;
    gap: 2px;
    padding: 7px 2px;
    text-align: center;
  }

  .event-summary-row span {
    font-size: 8.5px;
  }

  .event-summary-row strong {
    font-size: 11px;
  }

  .schedule {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .schedule-heading h2 {
    margin-bottom: 14px;
  }

  .agenda-item {
    min-height: 42px;
    gap: 7px;
    padding: 6px;
  }

  .agenda-item h3 {
    font-size: 14px;
  }

  .location {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .map-card iframe {
    height: 300px;
  }

  .registration {
    padding-top: 52px;
    padding-bottom: 52px;
    background-position: center center;
    background-attachment: fixed;
  }

  .registration-copy h2 {
    font-size: 28px;
  }

  .registration-actions {
    width: min(350px, 100%);
    flex-direction: column;
    margin-inline: auto;
    gap: 8px;
  }

  .registration-actions .btn {
    width: 100%;
  }

  .registration .qr-box {
    width: min(240px, 78vw);
    padding: 12px;
    border-radius: 18px;
  }

  .confirmation {
    padding-top: 46px;
    padding-bottom: 46px;
  }

  .confirm-form {
    padding: 15px;
  }

  .footer {
    padding-top: 32px;
    background-size: 96px 96px, 96px 96px, 100% 100%, 100% 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    margin-top: 20px;
  }
}

@media (max-width: 620px) {
  .participant-info {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .participant-info-heading h2 {
    margin-bottom: 22px;
    font-size: clamp(27px, 8vw, 34px);
  }

  /* Tetap dua kolom di mobile karena item singkat. */
  .participant-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .participant-column {
    padding: 18px 10px;
  }

  .participant-column h3 {
    min-height: 34px;
    margin-bottom: 11px;
    font-size: 12px;
    line-height: 1.2;
  }

  .participant-list {
    gap: 7px;
  }

  .participant-list li {
    padding-left: 16px;
    font-size: 10.5px;
    line-height: 1.28;
  }

  .participant-list li::before {
    font-size: 10px;
  }
}

@media (max-width: 360px) {
  .participant-column {
    padding-inline: 8px;
  }

  .participant-column h3 {
    font-size: 11px;
  }

  .participant-list li {
    padding-left: 14px;
    font-size: 9.5px;
  }
}

@media (max-width: 620px) and (max-height: 740px) {
  .hero-content {
    padding-bottom: 142px;
    transform: translateY(-8px);
  }

  .hero-title-main {
    font-size: clamp(41px, 12.8vw, 50px);
  }

  .hero-theme {
    margin-top: 8px;
    font-size: 11px;
    line-height: 1.35;
  }

  .hero-note {
    display: none;
  }

  .hero-prize {
    padding-block: 6px;
  }

  .hero-prize strong {
    font-size: 10px;
  }

  .countdown div {
    padding-block: 7px 6px;
  }

  .countdown strong {
    font-size: 18px;
  }
}

@media (max-width: 380px) {
  .registration .qr-box {
    width: min(220px, 76vw);
  }
}

@media (max-width: 360px) {
  .event-summary {
    grid-template-columns: 1fr;
  }

  .event-summary-group + .event-summary-group {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .event-summary-row {
    min-height: 50px;
    grid-template-columns: 74px minmax(0, 1fr);
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}