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

:root {
  --gold:   #f0c040;
  --gold2:  #c89a20;
  --red:    #e63946;
  --green:  #50fa7b;
  --bg:     #0e0e14;
  --panel:  #16161e;
  --border: #2a2a3a;
  --text:   #f0ece0;
  --muted:  #7a8070;
  --mono:   'Space Mono', monospace;
  --round:  'Nunito', sans-serif;
}

body {
  font-family: var(--round);
  color: var(--text);
  min-height: 100vh;
  background: var(--bg);
}

/* ── NAV ── */
.nav-global {
  width: 100%;
  background: rgba(0,0,0,0.45);
  border-bottom: 1px solid rgba(240,192,64,0.15);
  padding: 0.7rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--muted);
  text-decoration: none;
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  transition: all 0.2s;
}
.nav-link:hover       { color: var(--gold); border-color: rgba(240,192,64,0.4); }
.nav-link.active      { color: var(--gold); border-color: var(--gold); background: rgba(240,192,64,0.08); }
.nav-link.btn-primary { background: var(--gold); color: #1a1a1a; border-color: var(--gold); font-weight: 700; }
.nav-link.btn-primary:hover { background: #f5ca50; }

.coins-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gold);
  background: rgba(240,192,64,0.1);
  border: 1px solid rgba(240,192,64,0.3);
  padding: 4px 10px;
  border-radius: 20px;
}
.coins-badge.low { color: var(--red); border-color: rgba(230,57,70,0.4); background: rgba(230,57,70,0.08); }

/* ── BOTONES ── */
.btn {
  font-family: var(--round);
  font-size: 0.9rem;
  font-weight: 900;
  padding: 0.65rem 1.6rem;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.btn-gold  { background: var(--gold); color: #1a1a1a; box-shadow: 0 4px 0 var(--gold2); }
.btn-gold:hover:not(:disabled)  { background: #f5ca50; }
.btn-gold:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 var(--gold2); }

.btn-ghost { background: rgba(255,255,255,0.07); color: var(--text); border: 2px solid rgba(255,255,255,0.15); }
.btn-ghost:hover:not(:disabled)  { background: rgba(255,255,255,0.12); }
.btn-ghost:active:not(:disabled) { transform: translateY(1px); }

.btn-red   { background: var(--red); color: white; box-shadow: 0 4px 0 #a02030; }
.btn-red:hover:not(:disabled)  { background: #f04050; }
.btn-red:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 #a02030; }

.btn-green { background: var(--green); color: #0a1a0a; box-shadow: 0 4px 0 #30c050; }
.btn-green:hover:not(:disabled)  { background: #70ffaa; }
.btn-green:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 #30c050; }

/* ── MODAL ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  padding: 1rem;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  max-width: 380px; width: 100%;
  display: flex; flex-direction: column; gap: 1rem;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}
.modal h2 { font-size: 1.2rem; font-weight: 900; }
.modal-btns { display: flex; gap: 0.6rem; }
.modal-btns .btn { flex: 1; text-align: center; text-decoration: none; display: flex; align-items: center; justify-content: center; }

/* ── UTILS ── */
.hidden { display: none !important; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%     { transform: translateX(-8px); }
  40%     { transform: translateX(8px); }
  60%     { transform: translateX(-5px); }
  80%     { transform: translateX(5px); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}