/* Adventure Blue — Devin's Adventure */
:root {
  --bg-primary: #7ec8ff;
  --bg-secondary: #5eb8ff;
  --bg-sky-top: #7ec8ff;
  --bg-sky-bottom: #b8e4ff;
  --hill: #4ecb71;
  --hill-dark: #3aa85a;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.92);
  --text-primary: #1a3a5c;
  --text-secondary: #4a6a8a;
  --accent: #ff8c42;
  --accent-2: #ffd166;
  --success: #2ecc71;
  --warning: #f4a261;
  --danger: #e76f51;
  --star: #ffd166;
  --cash: #f4d35e;
  --purple-fun: #7b6cff;
  --pink-fun: #ff6b9d;
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --radius-xl: 40px;
  --shadow-card: 0 10px 28px rgba(26, 58, 92, 0.18);
  --shadow-nav: 0 -8px 30px rgba(26, 58, 92, 0.15);
  --nav-h: 92px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --font-display: "Fredoka", "Nunito", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, sans-serif;
  --touch-min: 72px;
  --max-app-width: 1400px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-sky-top);
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

button, input, select, textarea {
  font: inherit;
}

#app {
  position: relative;
  height: 100%;
  width: 100%;
  max-width: var(--max-app-width);
  margin: 0 auto;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,0.55) 0 48px, transparent 50px),
    radial-gradient(circle at 78% 12%, rgba(255,255,255,0.4) 0 36px, transparent 38px),
    radial-gradient(circle at 88% 28%, rgba(255,255,255,0.35) 0 22px, transparent 24px),
    linear-gradient(180deg, var(--bg-sky-top) 0%, var(--bg-sky-bottom) 58%, #9fe0b0 58%, var(--hill) 100%);
}

.app-shell {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding:
    calc(12px + var(--safe-top))
    calc(16px + var(--safe-right))
    calc(var(--nav-h) + 12px + var(--safe-bottom))
    calc(16px + var(--safe-left));
}

#screen {
  flex: 1;
  min-height: 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.bottom-nav {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: calc(var(--nav-h) + var(--safe-bottom));
  padding: 8px 12px var(--safe-bottom);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  background: linear-gradient(180deg, rgba(255,255,255,0.75), #fff);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
  z-index: 40;
}

.nav-btn {
  border: 0;
  background: transparent;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: var(--touch-min);
  color: var(--text-secondary);
  font-weight: 800;
  font-size: 12px;
  transition: transform 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.nav-btn .nav-ico {
  font-size: 28px;
  line-height: 1;
  filter: drop-shadow(0 2px 0 rgba(0,0,0,0.06));
}

.nav-btn.active {
  color: var(--text-primary);
  background: linear-gradient(180deg, #fff7d6, #ffe8a3);
  transform: translateY(-10px) scale(1.06);
  box-shadow: 0 10px 18px rgba(255, 177, 40, 0.35);
}

.parent-corner {
  position: absolute;
  top: calc(8px + var(--safe-top));
  right: calc(10px + var(--safe-right));
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  color: rgba(26,58,92,0.45);
  font-size: 18px;
  z-index: 50;
  opacity: 0.55;
}

.loading-splash {
  position: absolute;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: linear-gradient(180deg, #7ec8ff, #b8e4ff);
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.loading-splash .rocket {
  font-size: 72px;
  animation: floaty 1.2s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.toast {
  position: absolute;
  left: 50%;
  bottom: calc(var(--nav-h) + 24px + var(--safe-bottom));
  transform: translateX(-50%) translateY(20px);
  background: #1a3a5c;
  color: #fff;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 800;
  opacity: 0;
  pointer-events: none;
  transition: 0.25s ease;
  z-index: 80;
  max-width: 90%;
  text-align: center;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.celebration-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 90;
  overflow: hidden;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 28, 48, 0.55);
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  width: min(520px, 100%);
  box-shadow: var(--shadow-card);
  text-align: center;
}

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

.bottom-nav.is-hidden,
.parent-corner.is-hidden {
  display: none !important;
}

#app-lock {
  position: absolute;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.5), transparent 40%),
    linear-gradient(180deg, #7ec8ff, #b8e4ff 55%, #9fe0b0);
}

.lock-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 28px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.lock-card h1 {
  font-family: var(--font-display);
  margin: 8px 0 6px;
  font-size: 32px;
}

.lock-card p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  font-weight: 700;
}

.lock-rocket {
  font-size: 56px;
}

.lock-input {
  width: 100%;
  border: 2px solid #d7e6f5;
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  text-align: center;
}

.lock-btn {
  width: 100%;
  font-size: 18px;
}

.lock-error {
  color: var(--danger);
  font-weight: 800;
  margin-top: 12px !important;
}