:root {
  --bg: #070b16;
  --accent: #b57cff;         /* Gem 9 Akzent — Amethyst */
  --text: #e8ecf6;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%; height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Rajdhani', 'Segoe UI', sans-serif;
  overflow: hidden;
  -webkit-user-select: none; user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}

#board {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  display: block;
  touch-action: none;
}

/* ── HUD ───────────────────────────────────────────────── */
.hud {
  position: fixed; top: 0; left: 0; right: 0;
  display: flex; justify-content: space-between; align-items: flex-start;
  padding: max(env(safe-area-inset-top), 14px) 20px 0;
  pointer-events: none;
  z-index: 5;
}
.hud-block { display: flex; flex-direction: column; align-items: flex-start; }
.hud-right { align-items: flex-end; }
.hud-label {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; opacity: 0.5;
}
.hud-value {
  font-size: 1.8rem; font-weight: 700;
  font-variant-numeric: tabular-nums; line-height: 1.05;
}
.hud-chain {
  align-self: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem; font-weight: 700; letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(181,124,255,0.55);
  min-height: 1.2em;
}
.hud.hidden { display: none; }

/* ── Screens ───────────────────────────────────────────── */
.screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background: radial-gradient(120% 90% at 50% 20%, rgba(181,124,255,0.14), rgba(7,11,22,0.94) 70%);
  backdrop-filter: blur(2px);
  z-index: 10;
}
.screen.hidden { display: none; }
.card {
  width: 100%; max-width: 380px;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  text-align: center;
}
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.4rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1;
}
.logo span { color: var(--accent); }
.tagline { font-size: 1.05rem; font-weight: 600; opacity: 0.7; }
.hint { font-size: 0.86rem; opacity: 0.5; line-height: 1.45; margin-top: 4px; }

.mode-btn {
  width: 100%; padding: 15px;
  border: none; border-radius: 14px;
  background: var(--accent); color: #1b0c33;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.2rem; font-weight: 700; letter-spacing: 0.03em;
  cursor: pointer;
  transition: transform 0.08s, filter 0.12s;
}
.mode-btn:active { transform: scale(0.97); filter: brightness(1.12); }

.daily-btn {
  padding: 9px 18px;
  border: 1.5px solid rgba(181,124,255,0.5); border-radius: 999px;
  background: transparent; color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.95rem; font-weight: 700; letter-spacing: 0.04em;
  cursor: pointer; transition: all 0.14s;
}
.daily-btn[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #1b0c33; }

/* ── Game over ─────────────────────────────────────────── */
.go-mode {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem; font-weight: 700; color: var(--accent);
  text-shadow: 0 0 24px rgba(181,124,255,0.4);
}
.go-score { font-size: 3.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.go-best { font-size: 0.98rem; opacity: 0.72; }

.text-btn {
  background: none; border: none; color: var(--text); opacity: 0.6;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem; font-weight: 700; letter-spacing: 0.03em;
  cursor: pointer; padding: 6px;
}
.text-btn:active { opacity: 1; }

/* ── Reg-Panel (Akzent Amethyst) ───────────────────────── */
.reg-panel {
  width: 100%; margin-top: 6px; padding: 14px; border-radius: 14px;
  background: rgba(181,124,255,0.10); border: 1px solid rgba(181,124,255,0.28);
}
.reg-panel.hidden { display: none; }
.reg-panel form { display: flex; flex-direction: column; gap: 0.55rem; }
.reg-hint { font-size: 0.9rem; font-weight: 700; opacity: 0.7; }
.reg-input {
  padding: 11px 13px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(0,0,0,0.25); color: var(--text);
  font-family: 'Rajdhani', sans-serif; font-size: 1rem; font-weight: 600;
}
.reg-input::placeholder { opacity: 0.4; }
.reg-input:focus { outline: none; border-color: rgba(181,124,255,0.6); }
.reg-error { font-size: 0.82rem; font-weight: 700; color: #ff4d6d; }
.reg-error.hidden { display: none; }
.reg-saved { font-size: 1rem; font-weight: 700; color: #35e08a; }
.reg-btns { display: flex; gap: 0.55rem; }
.reg-submit-btn {
  flex: 1; padding: 11px; border: none; border-radius: 10px;
  background: var(--accent); color: #1b0c33;
  font-family: 'Rajdhani', sans-serif; font-size: 1rem; font-weight: 700; cursor: pointer;
}
.reg-skip-btn {
  padding: 11px 16px; border: none; border-radius: 10px;
  background: rgba(255,255,255,0.08); color: var(--text);
  font-family: 'Rajdhani', sans-serif; font-size: 1rem; font-weight: 700; cursor: pointer;
}