/* =========================================================
   FLAPPY — Flap / terminal theme
   ========================================================= */

:root {
  --bg: #000000;
  --bg-elev: #0a0a0a;
  --line: #1f1f1f;
  --line-strong: #2a2a2a;
  --text: #ffffff;
  --muted: #8a8a8a;
  --green: #b3ff00;
  --green-dim: #8fcc00;
  --red: #ff2a1f;
  --yellow: #f5d000;
  --font: "IBM Plex Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.45;
  color: var(--text);
  background: var(--bg);
  letter-spacing: 0.02em;
}

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

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

a:hover {
  color: var(--green);
}

button {
  font: inherit;
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--green);
  color: #000;
  font-weight: 700;
}

.skip-link:focus {
  left: 0.75rem;
  top: 0.75rem;
}

/* ---- nav ---- */
.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.nav__brand img {
  width: 28px;
  height: 28px;
  image-rendering: pixelated;
}

.wallet-chip {
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

#connectBtn {
  position: relative;
  z-index: 5;
  pointer-events: auto;
  cursor: pointer;
}

#connectBtn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.btn.is-connected {
  border-color: var(--green);
  color: var(--green);
  background: transparent;
}

.nav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.nav__links a[hidden] {
  display: none;
}

.hood-price {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  white-space: nowrap;
  padding: 0.2rem 0.45rem;
  border: 1px solid #222;
  border-radius: 2px;
}

.hood-price.is-up {
  color: var(--green);
  border-color: rgba(179, 255, 0, 0.35);
}

.hood-price.is-down {
  color: var(--red);
  border-color: rgba(255, 42, 31, 0.35);
}

.nav .btn--accent {
  margin-left: 0.25rem;
}

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0.55rem 0.95rem;
  border-radius: 0;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
}

.btn--buy {
  background: var(--green);
  color: #000;
  border-color: var(--green);
}

.btn--buy:hover {
  background: var(--green-dim);
  color: #000;
}

.btn--accent {
  background: var(--yellow);
  color: #000;
  border-color: var(--yellow);
}

.btn--accent:hover {
  filter: brightness(1.05);
  color: #000;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn--tiny {
  min-height: 28px;
  padding: 0.3rem 0.55rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--text);
}

.btn--tiny:hover:not(:disabled) {
  border-color: var(--green);
  color: var(--green);
}

.btn--tiny:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ---- layout ---- */
.layout {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  min-height: calc(100svh - 9rem);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.panel {
  padding: 1.25rem 1rem 1.5rem;
}

.intro {
  border-bottom: 1px solid var(--line);
}

.label {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.title {
  margin: 0;
  font-size: clamp(2.8rem, 10vw, 4.8rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.04em;
}

.subtitle {
  margin: 0.45rem 0 0;
  color: var(--yellow);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
}

.actions [hidden] {
  display: none;
}

.stats {
  margin-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.stat {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.stat__k {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.stat__v {
  color: var(--text);
  font-weight: 600;
  font-size: 12px;
  word-break: break-all;
}

.stat--ca .stat__v {
  color: var(--green);
}

/* ---- vault ---- */
.vault {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.claim-card {
  margin-top: 0.85rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.claim-card__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  margin-bottom: 0.45rem;
}

.claim-card__top strong {
  color: var(--yellow);
  letter-spacing: 0.08em;
}

.claim-card__top span,
.claim-card__pool,
.claim-card__status {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.claim-card__pool {
  margin: 0.25rem 0;
  color: var(--green);
}

.claim-card__status {
  margin: 0.35rem 0 0.65rem;
}

.vault__note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.vault__note code {
  color: var(--text);
}

/* ---- game ---- */
.play {
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
}

.play__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.play__head .label {
  margin: 0;
}

.play__meta {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.play__stage {
  position: relative;
  width: min(100%, 420px);
  margin: 0 auto;
  aspect-ratio: 420 / 640;
  max-height: min(68svh, 640px);
  border: 1px solid var(--line-strong);
  background: #050505;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.bird-sprite {
  position: absolute;
  left: 0;
  top: 0;
  width: 52px;
  height: 52px;
  pointer-events: auto;
  cursor: pointer;
  transform-origin: center center;
  image-rendering: pixelated;
  z-index: 2;
  will-change: transform;
}

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.hud__stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
}

.hud__score {
  font-size: clamp(2rem, 7vw, 2.8rem);
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.06em;
  text-shadow: 0 0 18px rgba(179, 255, 0, 0.35);
  transition: transform 0.1s ease;
}

.hud__unit {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.hud__score.is-pop {
  transform: scale(1.12);
  color: var(--text);
}

.hud__toast {
  margin-top: auto;
  margin-bottom: 22%;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line-strong);
  background: rgba(0, 0, 0, 0.75);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hud__toast[hidden] {
  display: none;
}

.hud__restart {
  pointer-events: auto;
  margin-top: auto;
  margin-bottom: 18%;
}

.hud__restart[hidden] {
  display: none;
}

.play__hint {
  margin: 0.75rem 0 0;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* ---- footer ---- */
.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.footer p {
  margin: 0.35rem 0;
}

.footer a {
  color: var(--green);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 50;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--green);
  background: #000;
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 11px;
}

.toast[hidden] {
  display: none;
}

@media (min-width: 920px) {
  .layout {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .intro {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem 1.5rem;
  }

  .play {
    padding: 1.25rem 1.25rem 1.5rem;
    justify-content: center;
  }

  .play__stage {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .nav {
    flex-wrap: wrap;
  }

  .nav__links {
    order: 3;
    width: 100%;
    margin-left: 0;
  }

  .wallet-chip {
    order: 4;
  }

  .stat {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .stat--ca .btn--tiny {
    justify-self: start;
  }
}

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

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