:root {
  color-scheme: light;
  --canvas: var(--color-canvas);
  --ink: var(--color-ink);
  --lime: var(--color-primary);
  --blue: var(--color-secondary);
  --coral: var(--color-attention);
  --surface: var(--color-surface-raised);
  --muted: var(--color-muted);
  --line: var(--color-border);
  --shadow: var(--shadow-raised);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 0;
  min-height: 100%;
  background: var(--canvas);
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px),
    var(--canvas);
  background-size: 44px 44px;
}

button {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

.home-link {
  position: fixed;
  z-index: 30;
  top: 18px;
  left: 18px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.home-link svg,
.primary-button svg,
.back-button svg,
.section-button svg,
.next-button svg,
.feature-row svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-decoration {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
}

.page-decoration--one {
  top: -130px;
  right: -90px;
  width: 340px;
  height: 340px;
  border: 68px solid var(--color-primary-soft);
}

.page-decoration--two {
  bottom: -150px;
  left: -120px;
  width: 310px;
  height: 310px;
  border: 60px solid var(--color-secondary-soft);
}

.app-shell {
  width: min(100% - 36px, 1180px);
  min-height: 100svh;
  margin-inline: auto;
  padding: 24px 0;
}

.start-screen {
  min-width: 0;
  min-height: calc(100svh - 48px);
  display: grid;
  align-items: center;
}

.start-screen > .row {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin-inline: 0;
}

.start-screen > .row > * {
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  padding: 5px;
  border-radius: 12px;
  background: var(--ink);
}

.brand-mark i {
  display: block;
  border-radius: 4px;
  background: var(--lime);
}

.brand-mark i:nth-child(2) { background: var(--blue); }
.brand-mark i:nth-child(3) { background: var(--coral); }
.brand-mark i:nth-child(4) { background: var(--surface); }

.eyebrow {
  margin: 28px 0 9px;
  color: var(--blue);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.start-copy h1 {
  max-width: 700px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.3rem, 6.8vw, 6rem);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.065em;
}

.start-copy h1 em {
  color: var(--blue);
  font-weight: 500;
}

.start-lead {
  max-width: 590px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.55;
}

.trail-preview {
  width: min(100%, 470px);
  height: 84px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 75%, transparent);
  box-shadow: var(--shadow-soft);
}

.trail-preview > i {
  min-width: 22px;
  flex: 1;
  border-top: 3px dashed color-mix(in srgb, var(--blue) 58%, transparent);
}

.trail-node {
  width: 50px;
  height: 50px;
  display: grid;
  flex: 0 0 50px;
  place-items: center;
  border: 3px solid var(--ink);
  border-radius: 16px;
  background: var(--surface);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.82rem;
  font-weight: 800;
  transform: rotate(-3deg);
}

.trail-node--done { background: var(--lime); }
.trail-node--picture {
  border-radius: 50%;
  background: var(--color-secondary-soft);
  transform: rotate(4deg);
}
.trail-node--picture svg {
  width: 32px;
  fill: var(--blue);
  stroke: var(--ink);
  stroke-width: 2;
}
.trail-node--finish {
  color: var(--surface);
  background: var(--ink);
  transform: rotate(3deg);
}

.setup-card {
  padding: clamp(21px, 3vw, 31px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.language-picker {
  margin: 0;
  padding: 0 0 18px;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.language-picker legend,
.picker-title {
  margin: 0 0 9px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.language-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.language-button {
  min-width: 0;
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 9px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.46);
  cursor: pointer;
  text-align: left;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

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

.language-button[aria-pressed="true"] {
  border-color: var(--color-primary-hover);
  background: var(--color-primary-soft);
  box-shadow: inset 0 0 0 1px var(--color-primary-hover);
}

.language-flag {
  font-size: 1.45rem;
  line-height: 1;
}

.language-button b,
.language-button small {
  display: block;
}

.language-button b {
  font-size: 0.72rem;
}

.language-button small {
  margin-top: 2px;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.58rem;
  text-overflow: ellipsis;
}

.session-rules {
  padding: 15px 0 13px;
}

.session-rules ol {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.session-rules li {
  min-height: 35px;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.3;
}

.session-rules li b {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--ink);
  background: var(--color-cell);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.68rem;
}

.session-rules > p {
  display: flex;
  justify-content: space-between;
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
}

.session-rules > p strong {
  color: var(--blue);
}

.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  padding: 12px 0 14px;
  border-top: 1px solid var(--line);
}

.feature-row > span {
  min-width: 0;
  min-height: 49px;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 2px;
  border-radius: 12px;
  background: var(--color-cell);
  text-align: center;
}

.feature-row b,
.feature-row svg {
  height: 20px;
  color: var(--blue);
  font-size: 0.75rem;
}

.feature-row .life-symbols {
  color: var(--coral);
  letter-spacing: 0.06em;
}

.feature-row small {
  max-width: 100%;
  padding-inline: 3px;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.52rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.primary-button {
  width: 100%;
  min-height: 53px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 7px 6px 19px;
  border: 0;
  border-radius: 15px;
  color: var(--ink);
  background: var(--lime);
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.primary-button:hover {
  background: color-mix(in srgb, var(--lime) 84%, white);
}

.primary-button__arrow {
  width: 41px;
  height: 41px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: var(--canvas);
  background: var(--ink);
}