:root {
  --bg: oklch(0.98 0.01 250);
  --surface: oklch(1 0 0 / 0.75);
  --text: oklch(0.24 0.03 255);
  --muted: oklch(0.5 0.03 255);
  --primary: oklch(0.66 0.16 281);
  --accent: oklch(0.78 0.13 182);
  --radius: 1rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --shadow: 0 8px 24px oklch(0.34 0.03 260 / 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, oklch(0.88 0.08 287 / 0.4), transparent 28%),
    radial-gradient(circle at 80% 20%, oklch(0.9 0.12 175 / 0.35), transparent 30%),
    var(--bg);
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
  background: #fff;
  padding: var(--space-2) var(--space-3);
  border-radius: 0.5rem;
}

.container {
  width: min(100% - 2rem, 70rem);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: oklch(1 0 0 / 0.65);
  border-bottom: 1px solid oklch(0.87 0.02 260);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  align-items: center;
  padding: var(--space-4) 0;
}

.nav-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.brand {
  cursor: pointer;
}

.brand:focus-visible {
  outline: 2px solid oklch(0.66 0.16 281);
  outline-offset: 4px;
  border-radius: 0.5rem;
}

.plane-sky {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  overflow: hidden;
}

.plane-fly {
  position: absolute;
  left: -10vw;
  top: 34vh;
  font-size: 2rem;
  transform: translate(0, 0) rotate(0deg);
}

.cloud-trail {
  position: absolute;
  left: -12vw;
  top: 35vh;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: oklch(1 0 0 / 0.9);
  filter: blur(0.2px);
}

.plane-sky.active .plane-fly {
  animation: figureEightFlight 5200ms linear forwards;
}

.plane-sky.active .cloud-trail {
  animation: figureEightTrail 5200ms linear forwards;
}

.brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 800; }
.logo { width: 2rem; height: 2rem; }

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.65rem 1rem;
  min-height: 44px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 200ms ease;
}

.btn-secondary {
  background: linear-gradient(135deg, oklch(0.75 0.16 280), oklch(0.78 0.12 184));
  color: white;
  box-shadow: var(--shadow);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: scale(0.98); }

.card {
  background: var(--surface);
  border: 1px solid oklch(0.88 0.02 260);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  margin-top: var(--space-8);
  padding: var(--space-6);
}

.hero-grid {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.hero-photo-wrap {
  margin: 0;
  background: oklch(1 0 0 / 0.75);
  border: 1px solid oklch(0.88 0.02 260);
  border-radius: 0.9rem;
  padding: 0.6rem;
}

.hero-photo {
  width: 100%;
  max-width: 340px;
  display: block;
  margin: 0 auto;
  border-radius: 0.7rem;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.hero-photo-wrap figcaption {
  margin-top: 0.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

h1 { font-size: clamp(1.6rem, 5vw, 2.6rem); margin: 0 0 var(--space-3); }
h2 { margin: 0; font-size: clamp(1.3rem, 4vw, 1.8rem); }
h3 { margin-top: 0; }
p { line-height: 1.6; }
.tip { font-weight: 600; color: var(--muted); }

.section-head { margin: var(--space-8) 0 var(--space-4); }

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.chip {
  border: 1px solid oklch(0.82 0.04 260);
  background: white;
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  min-height: 44px;
  cursor: pointer;
}

.chip.active {
  background: linear-gradient(135deg, oklch(0.75 0.16 280), oklch(0.78 0.12 184));
  border-color: transparent;
  color: white;
}

.dest-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.dest {
  padding: var(--space-4);
  transition: transform 200ms ease, opacity 250ms ease;
}

.dest:hover { transform: translateY(-3px); }

.checklist {
  list-style: none;
  margin: 0;
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

.checklist input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin-right: var(--space-2);
}

.accordion { overflow: hidden; }
.acc-trigger {
  width: 100%;
  text-align: left;
  border: 0;
  border-bottom: 1px solid oklch(0.9 0.02 260);
  padding: 1rem;
  background: transparent;
  font-weight: 700;
  min-height: 44px;
  cursor: pointer;
}

.film-controls {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.film-select {
  min-height: 44px;
  border-radius: 0.75rem;
  border: 1px solid oklch(0.85 0.03 260);
  padding: 0.6rem 0.75rem;
  font: inherit;
  background: white;
}

.film-result {
  padding: var(--space-4);
}

.acc-panel {
  display: none;
  padding: 0 1rem 1rem;
  color: var(--muted);
}

.acc-panel.open { display: block; animation: fadeIn 280ms ease-out; }

.footer {
  padding: var(--space-8) 0;
  text-align: center;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  animation: slideIn 500ms ease-out forwards;
}

.reveal:nth-of-type(2) { animation-delay: 80ms; }
.reveal:nth-of-type(3) { animation-delay: 140ms; }
.reveal:nth-of-type(4) { animation-delay: 190ms; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes figureEightFlight {
  0% { transform: translate(-8vw, 0vh) rotate(10deg); }
  10% { transform: translate(6vw, -8vh) rotate(-8deg); }
  20% { transform: translate(20vw, 5vh) rotate(16deg); }
  30% { transform: translate(34vw, -9vh) rotate(-14deg); }
  40% { transform: translate(48vw, 6vh) rotate(14deg); }
  50% { transform: translate(62vw, -9vh) rotate(-14deg); }
  60% { transform: translate(76vw, 6vh) rotate(14deg); }
  70% { transform: translate(90vw, -8vh) rotate(-10deg); }
  100% { transform: translate(114vw, 0vh) rotate(6deg); }
}

@keyframes figureEightTrail {
  0% { transform: translate(-11vw, 0vh) scale(0.9); box-shadow: 0 0 0 0 oklch(1 0 0 / 0.45), 18px 4px 0 -2px oklch(1 0 0 / 0.35); }
  15% { transform: translate(10vw, -7vh) scale(1); box-shadow: 0 0 0 6px oklch(1 0 0 / 0.2), 18px 4px 0 0 oklch(1 0 0 / 0.25), 34px 8px 0 -3px oklch(1 0 0 / 0.2); }
  35% { transform: translate(38vw, -8vh) scale(1); box-shadow: 0 0 0 10px oklch(1 0 0 / 0.18), 20px 6px 0 2px oklch(1 0 0 / 0.22), 40px 12px 0 -1px oklch(1 0 0 / 0.18); }
  55% { transform: translate(66vw, -8vh) scale(1); box-shadow: 0 0 0 10px oklch(1 0 0 / 0.18), 20px 6px 0 2px oklch(1 0 0 / 0.22), 40px 12px 0 -1px oklch(1 0 0 / 0.18); }
  75% { transform: translate(92vw, -7vh) scale(1); box-shadow: 0 0 0 6px oklch(1 0 0 / 0.18), 16px 4px 0 0 oklch(1 0 0 / 0.2); }
  100% { transform: translate(116vw, 0vh) scale(0.9); box-shadow: 0 0 0 0 oklch(1 0 0 / 0.0); }
}

@media (min-width: 720px) {
  .hero { padding: var(--space-8); }
  .hero-grid { grid-template-columns: 1.2fr 0.8fr; }
  .dest-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}