:root {
  --bg: #0a1020;
  --card: rgba(18, 26, 51, 0.65);
  --text: #ffffff;
  --accent: #3b5cff;
  --glass-border: rgba(255,255,255,0.15);
  --blur: blur(14px);
}

/* LIGHT THEME */
body.light {
  --bg: #e9ecf1;
  --card: rgba(255,255,255,0.65);
  --text: #000;
  --accent: #5b6cff;
  --glass-border: rgba(0,0,0,0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont;
}

body {
  background: linear-gradient(180deg, #0a1020, #060b18);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* SNOW */
canvas#snow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
}

/* APP */
.app {
  padding: 16px;
  max-width: 520px;
  margin: 0 auto;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 34px;
  font-weight: 700;
}

.settings-btn {
  background: var(--card);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 14px;
  font-size: 18px;
  cursor: pointer;
}

/* MAIN MENU */
.menu button {
  width: 100%;
  margin-bottom: 14px;
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: var(--card);
  backdrop-filter: var(--blur);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}

.menu button:active {
  transform: scale(0.95);
}

/* TOP BAR */
.top-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.top-bar button {
  background: var(--card);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 14px;
  font-size: 16px;
  cursor: pointer;
}

.top-bar input {
  flex: 1;
  background: var(--card);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 10px 14px;
  color: var(--text);
  outline: none;
}

/* TAGS */
.tags {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.tag {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

/* GRID */
.grid {
  display: grid;
  gap: 16px;
}

/* CHEAT CARD */
.cheat {
  position: relative;
  padding: 16px;
  border-radius: 22px;
  background: var(--card);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  animation: fadeUp .35s ease;
}

.cheat h3 {
  font-size: 18px;
}

.cheat p {
  font-size: 14px;
  margin-top: 8px;
  opacity: 0.85;
}

.cheat a {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--accent);
  color: white;
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12px;
  text-decoration: none;
}

/* SETTINGS PANEL */
.settings {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px;
  background: var(--card);
  backdrop-filter: var(--blur);
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  border: 1px solid var(--glass-border);
  animation: slideUp .35s ease;
  z-index: 1000;
}

.settings h2 {
  margin-bottom: 14px;
}

.settings label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px;
  margin-bottom: 10px;
  border-radius: 16px;
  background: rgba(255,255,255,0.06);
}

.settings input[type="checkbox"] {
  accent-color: var(--accent);
  transform: scale(1.3);
}

.settings button {
  width: 100%;
  padding: 14px;
  margin-top: 10px;
  border-radius: 18px;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 16px;
  cursor: pointer;
}

/* HELPERS */
.hidden {
  display: none;
}

/* ANIMATIONS */
@keyframes fadeUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: none;
  }
}