:root {
  color-scheme: dark;
  --night: #001d2c;
  --night-deep: #00131f;
  --gold: #c78b2b;
  --gold-bright: #efbd62;
  --parchment: #e5c995;
  --ink: #1f1a13;
  --shadow: rgb(0 0 0 / 52%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--night-deep);
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 50% 8%, rgb(199 139 43 / 12%), transparent 34rem),
    linear-gradient(180deg, #001b2b, #000f18 78%);
  color: var(--parchment);
  font-family: Georgia, "Times New Roman", serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.page {
  width: 100%;
  min-height: 100svh;
  padding: max(10px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right))
    max(18px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
}

.poster-shell {
  position: relative;
  width: min(100%, 951px);
  aspect-ratio: 951 / 1654;
  margin: 0 auto;
  overflow: hidden;
  background: var(--night);
  box-shadow: 0 18px 60px var(--shadow), 0 0 0 1px rgb(239 189 98 / 30%);
}

.poster-picture {
  position: absolute;
  inset: 0;
  display: block;
}

.poster-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

.hotspot-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hotspot {
  position: absolute;
  z-index: 2;
  display: block;
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  color: transparent;
  cursor: pointer;
  pointer-events: auto;
  text-decoration: none;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.hotspot:hover {
  border-color: rgb(239 189 98 / 60%);
  background: rgb(239 189 98 / 8%);
  box-shadow: inset 0 0 18px rgb(239 189 98 / 12%);
}

.hotspot:focus-visible {
  z-index: 5;
  border-color: var(--gold-bright);
  outline: 3px solid #fff4d4;
  outline-offset: 2px;
  background: rgb(0 29 44 / 18%);
  box-shadow: 0 0 0 7px rgb(199 139 43 / 30%);
}

.hotspot.is-medallion {
  border-radius: 50%;
}

.hotspot.is-pending::after {
  content: "";
  position: absolute;
  top: 4%;
  right: 7%;
  width: clamp(5px, 0.8vw, 9px);
  aspect-ratio: 1;
  border: 1px solid #3b2a10;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 0 2px rgb(0 29 44 / 75%);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border: 2px solid var(--gold-bright);
  border-radius: 8px;
  background: var(--night);
  color: #fff4d4;
  transform: translateY(-160%);
}

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

.mobile-index {
  position: sticky;
  z-index: 10;
  bottom: max(12px, env(safe-area-inset-bottom));
  display: none;
  width: min(92%, 420px);
  min-height: 48px;
  margin: 14px auto 0;
  border: 1px solid var(--gold-bright);
  border-radius: 999px;
  background: linear-gradient(180deg, #e6cb98, #c99b51);
  box-shadow: 0 10px 30px rgb(0 0 0 / 45%);
  color: var(--ink);
  font: 700 1rem Georgia, "Times New Roman", serif;
}

.lesson-dialog {
  width: min(760px, calc(100% - 24px));
  max-height: min(82svh, 900px);
  padding: 0;
  overflow: auto;
  border: 2px solid var(--gold);
  border-radius: 18px;
  background:
    linear-gradient(rgb(233 210 168 / 96%), rgb(218 185 126 / 97%)),
    #e4c48b;
  box-shadow: 0 24px 80px rgb(0 0 0 / 70%);
  color: var(--ink);
}

.lesson-dialog::backdrop {
  background: rgb(0 13 22 / 78%);
  backdrop-filter: blur(5px);
}

.dialog-heading {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 22px 14px;
  border-bottom: 1px solid rgb(69 45 13 / 35%);
  background: rgb(229 201 149 / 96%);
}

.eyebrow {
  margin: 0 0 4px;
  color: #765018;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.dialog-heading h2 {
  margin: 0;
  color: #122c35;
  font-size: clamp(1.45rem, 4vw, 2.2rem);
  line-height: 1.05;
}

.dialog-close {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border: 1px solid #6c4611;
  border-radius: 50%;
  background: var(--night);
  color: var(--gold-bright);
  font: 400 2rem/1 Georgia, serif;
  cursor: pointer;
}

.dialog-close:focus-visible,
.dialog-item:focus-visible,
.mobile-index:focus-visible {
  outline: 3px solid #fff8e8;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px #1e5464;
}

.dialog-description {
  margin: 18px 22px 4px;
  color: #4a361c;
  font-size: 1rem;
  line-height: 1.45;
}

.dialog-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 18px 22px 26px;
}

.dialog-item {
  display: flex;
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid rgb(76 48 12 / 40%);
  border-radius: 10px;
  background: rgb(255 247 225 / 46%);
  color: #182f37;
  font-weight: 700;
  text-decoration: none;
}

.dialog-item:hover {
  background: rgb(255 250 234 / 80%);
}

.dialog-item small {
  color: #72501e;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: right;
  text-transform: uppercase;
}

.dialog-item.is-pending {
  opacity: 0.78;
}

.toast {
  position: fixed;
  z-index: 200;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  max-width: min(420px, calc(100% - 32px));
  padding: 13px 17px;
  border: 1px solid var(--gold-bright);
  border-radius: 10px;
  background: rgb(0 29 44 / 96%);
  box-shadow: 0 12px 34px rgb(0 0 0 / 55%);
  color: #fff1ce;
  font-size: 1rem;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translateY(18px);
  transition: opacity 180ms ease, transform 180ms ease;
}

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

.noscript-note {
  position: fixed;
  z-index: 250;
  inset: auto 16px 16px;
  margin: 0;
  padding: 12px 16px;
  border: 1px solid var(--gold);
  background: var(--night);
  color: #fff1ce;
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 600px) {
  .page {
    padding-inline: 0;
  }

  .poster-shell {
    box-shadow: none;
  }

  .mobile-index {
    display: block;
  }

  .dialog-list {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}