:root {
  --navy: #07182f;
  --blue: #0f5fff;
  --sky: #dff4ff;
  --green: #21c46b;
  --gold: #ffca3a;
  --red: #ff4d57;
  --white: #ffffff;
  --ink: #132238;
  --muted: #60708a;
  --line: rgba(19, 34, 56, 0.12);
  --card: rgba(255, 255, 255, 0.88);
  --shadow: 0 24px 70px rgba(7, 24, 47, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f3fbff 0%, #ffffff 42%, #f7f9fc 100%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--navy);
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: conic-gradient(from 210deg, var(--green), var(--blue), var(--red), var(--gold), var(--green));
  box-shadow: 0 10px 25px rgba(15, 95, 255, 0.24);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu a {
  padding: 10px 14px;
  border-radius: 999px;
  color: #31435d;
  font-weight: 700;
  font-size: 0.94rem;
}

.nav-menu a:hover {
  background: #eef6ff;
  color: var(--blue);
}

.nav-toggle {
  display: none;
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
}

.hero {
  width: min(1180px, calc(100% - 32px));
  margin: 38px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  gap: 34px;
  align-items: center;
  padding: 34px;
  min-height: 650px;
  border-radius: 42px;
  background: radial-gradient(circle at 15% 20%, rgba(33, 196, 107, 0.18), transparent 28%), radial-gradient(circle at 75% 10%, rgba(255, 202, 58, 0.2), transparent 30%), linear-gradient(135deg, #07182f 0%, #0a2a5c 48%, #0f5fff 100%);
  color: var(--white);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-content {
  padding: 18px 0 18px 18px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: 0.88;
  letter-spacing: -0.08em;
}

.hero-copy {
  max-width: 610px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 22px;
  font-weight: 900;
}

.button.primary {
  background: var(--gold);
  color: #241804;
}

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

.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 560px;
  margin-top: 36px;
}

.quick-stats div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.08);
}

.quick-stats strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.quick-stats span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.hero-visual {
  align-self: stretch;
  min-height: 520px;
  border-radius: 34px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.countdown-band {
  width: min(1100px, calc(100% - 32px));
  margin: -48px auto 80px;
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 20px;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.countdown-band h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 3rem);
  letter-spacing: -0.06em;
  color: var(--navy);
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.countdown-grid div {
  padding: 18px 12px;
  text-align: center;
  border-radius: 22px;
  background: #f2f7ff;
}

.countdown-grid strong {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.6rem);
  color: var(--blue);
}

.countdown-grid span {
  color: var(--muted);
  font-weight: 800;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 92px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-heading.compact {
  margin-left: 0;
  text-align: left;
}

.section-heading h2,
.split-copy h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.section-heading p:not(.eyebrow),
.split-copy p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.05rem;
}

.feature-grid,
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.tips-grid article,
.city-card,
.timeline-item {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--card);
  box-shadow: 0 16px 45px rgba(7, 24, 47, 0.08);
}

.feature-card {
  padding: 26px;
}

.card-number {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: #e9f4ff;
  color: var(--blue);
  font-weight: 900;
}

.feature-card h3,
.tips-grid h3,
.city-card h3,
.timeline-item h3 {
  margin: 18px 0 8px;
  color: var(--navy);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.feature-card p,
.tips-grid p,
.city-card p,
.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.image-split {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 92px;
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 34px;
  align-items: center;
}

.image-split img {
  width: 100%;
  min-height: 500px;
  object-fit: cover;
  border-radius: 36px;
  box-shadow: var(--shadow);
}

.split-copy {
  padding: 16px;
}

.check-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.check-list li {
  padding: 14px 16px;
  border-radius: 18px;
  background: #f0fbf5;
  color: #144f30;
  font-weight: 800;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.filter-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 16px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.filter-button.active {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--white);
}

.city-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.city-card {
  padding: 20px;
  transition: transform 160ms ease, opacity 160ms ease;
}

.city-card:hover {
  transform: translateY(-4px);
}

.city-card.is-hidden {
  display: none;
}

.city-card span {
  display: inline-block;
  padding: 7px 10px;
  border-radius: 999px;
  background: #eef6ff;
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.timeline-item {
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.timeline-item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: linear-gradient(90deg, var(--green), var(--blue), var(--gold));
}

.timeline-item time {
  color: var(--blue);
  font-weight: 900;
}

.gallery-row {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 92px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.gallery-row img {
  width: 100%;
  height: 390px;
  object-fit: cover;
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.tips-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tips-grid article {
  padding: 24px;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 26px;
  border-radius: 30px;
  background: var(--navy);
  color: var(--white);
}

.site-footer p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.7);
}

.site-footer a {
  font-weight: 900;
  color: var(--gold);
}

@media (max-width: 980px) {
  .hero,
  .image-split,
  .countdown-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding: 6px;
  }

  .hero-visual {
    min-height: 360px;
  }

  .feature-grid,
  .city-grid,
  .timeline,
  .tips-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .nav {
    min-height: 68px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

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

  .nav-menu a {
    padding: 14px;
  }

  .hero {
    width: min(100% - 20px, 1180px);
    margin-top: 14px;
    padding: 22px;
    border-radius: 30px;
  }

  .quick-stats,
  .countdown-grid,
  .feature-grid,
  .city-grid,
  .timeline,
  .gallery-row,
  .tips-grid {
    grid-template-columns: 1fr;
  }

  .countdown-band {
    margin-top: 20px;
  }

  .image-split img,
  .gallery-row img {
    min-height: 0;
    height: 300px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  .city-card {
    transition: none;
  }
}