/* SnakePlay — snake.css v1.0 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@700;900&family=Nunito:wght@700;900&display=swap');

:root {
  --neon-green:  #39ff14;
  --neon-blue:   #00d4ff;
  --neon-pink:   #ff2d78;
  --dark:        #0a0e1a;
  --panel:       rgba(255,255,255,0.05);
  --border:      rgba(255,255,255,0.1);
}

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

body {
  font-family: 'Nunito', sans-serif;
  background: var(--dark);
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}
/* Cuando se muestra pantalla de fin, el body permite scroll */
body.allow-scroll {
  overflow: hidden; /* el body sigue sin scroll */
}

/* ---- PANTALLAS ---- */
.screen { position:fixed; inset:0; display:none; z-index:10; }
.screen.active { display:flex; align-items:center; justify-content:center; }

/* ---- INICIO ---- */
#screen-start { flex-direction:column; }

#bg-canvas {
  position:absolute; inset:0;
  width:100%; height:100%;
  z-index:0;
}

.start-content {
  position:relative; z-index:1;
  display:flex; flex-direction:column;
  align-items:center; gap:2rem;
  padding:2rem;
}

.logo-wrap { text-align:center; }

.logo-snake {
  font-size:5rem;
  display:block;
  animation: snakeBounce 1.5s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 20px rgba(57,255,20,0.6));
}
@keyframes snakeBounce {
  from { transform: translateY(0) rotate(-5deg); }
  to   { transform: translateY(-12px) rotate(5deg); }
}

.logo-title {
  font-family:'Orbitron', sans-serif;
  font-size:3.5rem; font-weight:900;
  color:white;
  text-shadow: 0 0 30px rgba(57,255,20,0.5);
  line-height:1;
}
.logo-title span { color: var(--neon-green); }

.logo-sub {
  font-size:1rem; color:rgba(255,255,255,0.5);
  letter-spacing:3px; text-transform:uppercase;
  margin-top:0.4rem;
}

.start-panel {
  display:flex; flex-direction:column;
  align-items:center; gap:1rem;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:20px;
  padding:2rem 2.5rem;
  backdrop-filter:blur(10px);
  width:100%; max-width:360px;
  box-shadow: 0 0 40px rgba(57,255,20,0.08);
}

.name-label {
  font-size:0.8rem; color:rgba(255,255,255,0.5);
  letter-spacing:2px; text-transform:uppercase;
  align-self:flex-start;
}

.name-input {
  width:100%; padding:12px 16px;
  background:rgba(255,255,255,0.08);
  border:1.5px solid rgba(57,255,20,0.3);
  border-radius:12px;
  font-family:'Orbitron',sans-serif; font-size:1.1rem;
  color:white; outline:none;
  transition:border-color 0.2s, box-shadow 0.2s;
}
.name-input:focus {
  border-color:var(--neon-green);
  box-shadow:0 0 16px rgba(57,255,20,0.25);
}
.name-input::placeholder { color:rgba(255,255,255,0.25); }

.btn-play {
  width:100%; padding:16px;
  font-family:'Orbitron',sans-serif; font-size:1.1rem; font-weight:900;
  background:linear-gradient(135deg, #39ff14, #00c40f);
  color:#0a0e1a; border:none; border-radius:50px;
  cursor:pointer;
  box-shadow:0 6px 0 #007a0a, 0 10px 30px rgba(57,255,20,0.4);
  transition:transform 0.15s, box-shadow 0.15s;
  letter-spacing:1px;
}
.btn-play:hover { transform:translateY(-3px); box-shadow:0 9px 0 #007a0a, 0 16px 40px rgba(57,255,20,0.5); }
.btn-play:active { transform:translateY(3px); box-shadow:0 3px 0 #007a0a; }

.hint-row {
  display:flex; gap:1rem; flex-wrap:wrap; justify-content:center;
  font-size:0.75rem; color:rgba(255,255,255,0.35);
}

/* ---- JUEGO ---- */
#screen-game { background:#0a0e1a; }

#game-canvas {
  position:absolute; inset:0;
  width:100%; height:100%;
}

.hud-top {
  position:fixed; top:0; left:0; right:0;
  display:flex; gap:10px; padding:12px 16px;
  background:linear-gradient(180deg,rgba(0,0,0,0.8) 0%,transparent 100%);
  z-index:50; pointer-events:none;
}
.hud-box {
  display:flex; flex-direction:column; align-items:center;
  background:rgba(0,0,0,0.55); border-radius:12px;
  padding:5px 16px; border:1px solid rgba(57,255,20,0.25);
  backdrop-filter:blur(6px); min-width:75px;
}
.hud-label {
  font-size:0.5rem; color:var(--neon-green);
  font-weight:900; letter-spacing:2px; text-transform:uppercase;
}
.hud-val {
  font-family:'Orbitron',sans-serif;
  font-size:1.3rem; color:white; line-height:1.2;
}


/* ---- FIN ---- */
#screen-end {
  background:radial-gradient(ellipse at center, #0d1a0d 0%, #0a0e1a 100%);
  /* BUGFIX: permitir scroll cuando el contenido no cabe en pantalla */
  align-items: flex-start;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.end-content {
  display:flex; flex-direction:column; align-items:center;
  gap:1.2rem; padding:2rem;
  /* BUGFIX: ancho completo y margen auto para centrar horizontalmente */
  width: 100%;
  max-width: 600px;
  margin: auto;
  /* padding-bottom extra para que el disclaimer fijo no tape los botones */
  padding-bottom: 3rem;
  animation:endPop 0.5s cubic-bezier(.18,.89,.32,1.28);
}
@keyframes endPop {
  from { transform:scale(0.7); opacity:0; }
  to   { transform:scale(1); opacity:1; }
}
.end-emoji {
  font-size:5rem;
  filter:drop-shadow(0 0 20px rgba(255,45,120,0.6));
}
.end-title {
  font-family:'Orbitron',sans-serif;
  font-size:2rem; color:white;
  text-shadow:0 0 20px rgba(255,255,255,0.3);
}
.end-stats {
  display:flex; gap:1rem; flex-wrap:wrap; justify-content:center;
}
.end-stat {
  display:flex; flex-direction:column; align-items:center;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:14px; padding:0.8rem 1.4rem;
}
.end-stat-label {
  font-size:0.7rem; color:rgba(255,255,255,0.4);
  letter-spacing:2px; text-transform:uppercase;
}
.end-stat-val {
  font-family:'Orbitron',sans-serif;
  font-size:1.6rem; color:var(--neon-green);
}
.end-btns { display:flex; gap:10px; }
.btn-end {
  font-family:'Orbitron',sans-serif; font-size:0.85rem;
  padding:13px 24px; border-radius:50px; border:none;
  background:linear-gradient(135deg,#39ff14,#00c40f);
  color:#0a0e1a; cursor:pointer;
  box-shadow:0 5px 0 #007a0a;
  transition:transform 0.15s, box-shadow 0.15s;
}
.btn-end:hover { transform:translateY(-2px); box-shadow:0 7px 0 #007a0a; }
.btn-end:active { transform:translateY(2px); box-shadow:0 3px 0 #007a0a; }
.btn-menu {
  background:linear-gradient(135deg,#00d4ff,#0099cc);
  box-shadow:0 5px 0 #005f80;
}
.btn-menu:hover { box-shadow:0 7px 0 #005f80; }

/* ---- RESPONSIVE ---- */

@media(max-width:400px){
  .logo-title{ font-size:2.6rem; }
  .logo-snake{ font-size:3.5rem; }
  .start-panel{ padding:1.4rem 1.2rem; }
}

/* ============================================
   PASO D — Rotate overlay + Leaderboard
============================================ */

/* ---- PANTALLA ROTAR DISPOSITIVO ---- */
#rotate-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 99999;
  background: #0a0e1a;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1.5rem;
  text-align: center;
  padding: 2rem;
}
/* Solo mostrar en móvil portrait */
@media (max-width: 900px) and (orientation: portrait) {
  #rotate-overlay { display: flex; }
}

.rotate-icon {
  font-size: 5rem;
  animation: rotatePhone 1.5s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 20px rgba(57,255,20,0.7));
}
@keyframes rotatePhone {
  from { transform: rotate(0deg); }
  to   { transform: rotate(90deg); }
}
.rotate-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.4rem; color: white;
  text-shadow: 0 0 20px rgba(57,255,20,0.4);
}
.rotate-sub {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 1px;
}

/* ---- LEADERBOARD ---- */
#leaderboard {
  position: fixed;
  top: 70px; right: 14px;
  z-index: 50;
  width: 180px;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(57,255,20,0.2);
  border-radius: 14px;
  padding: 8px 10px;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.lb-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.55rem;
  color: var(--neon-green);
  letter-spacing: 3px;
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 6px;
  opacity: 0.8;
}
.lb-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background 0.3s;
}
.lb-row:last-child { border-bottom: none; }
.lb-row.lb-me {
  background: rgba(57,255,20,0.08);
  border-radius: 6px;
  padding: 4px 4px;
}
.lb-rank {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  color: rgba(255,255,255,0.35);
  width: 16px;
  text-align: right;
  flex-shrink: 0;
}
.lb-rank.lb-top { color: #ffdd00; }
.lb-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 6px currentColor;
}
.lb-name {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.75);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.lb-name.lb-me-name { color: white; font-weight: 900; }
.lb-len {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
  flex-shrink: 0;
}
.lb-len.lb-me-len { color: var(--neon-green); }

/* Zoom indicator */
#zoom-indicator {
  position: fixed;
  bottom: 60px; right: 16px;
  z-index: 50;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  color: rgba(57,255,20,0.6);
  letter-spacing: 1px;
}
#zoom-indicator.visible { opacity: 1; }

/* ============================================
   PASO I — Skin selector
============================================ */
.skin-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.skin-section-label {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: 'Orbitron', sans-serif;
  align-self: flex-start;
}
.skin-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-start;
  width: 100%;
}
.skin-btn {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  position: relative;
}
.skin-btn:hover {
  transform: scale(1.18);
  border-color: var(--skin-color);
  box-shadow: 0 0 10px var(--skin-glow);
}
.skin-btn.skin-active {
  border-color: var(--skin-color);
  box-shadow: 0 0 14px var(--skin-glow), 0 0 0 3px rgba(255,255,255,0.1);
  transform: scale(1.12);
}
.skin-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--skin-color);
  box-shadow: 0 0 8px var(--skin-glow);
  display: block;
}
.skin-active .skin-dot::after {
  content: '✓';
  position: absolute;
  font-size: 0.6rem;
  color: rgba(0,0,0,0.7);
  font-weight: 900;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.skin-name-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
  min-height: 1em;
  transition: color 0.2s;
}

/* Badge nuevo récord */
#new-record-badge {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  color: #ffdd00;
  text-shadow: 0 0 16px rgba(255,221,0,0.8);
  letter-spacing: 2px;
  animation: recordPulse 0.8s ease-in-out infinite alternate;
  padding: 4px 0;
}
@keyframes recordPulse {
  from { opacity: 0.7; transform: scale(0.97); }
  to   { opacity: 1;   transform: scale(1.04); }
}

/* Separador de secciones */
.end-section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.55rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

/* Fila de récords — mismo estilo que stats pero más pequeño */
.end-records .end-stat {
  padding: 0.5rem 1rem;
}
.end-records .rec-val {
  font-size: 1.1rem;
  color: rgba(57,255,20,0.6);
}

/* Cuando es récord nuevo: brilla en dorado */
.end-stat.is-record {
  border-color: rgba(255,221,0,0.5);
  background: rgba(255,221,0,0.07);
  box-shadow: 0 0 12px rgba(255,221,0,0.15);
}
.end-stat.is-record .rec-val {
  color: #ffdd00;
  text-shadow: 0 0 10px rgba(255,221,0,0.6);
}

/* Botón borrar récords — pequeño e icónico */
.btn-clear-rec {
  background: rgba(255,255,255,0.07) !important;
  box-shadow: none !important;
  color: rgba(255,255,255,0.4) !important;
  padding: 13px 14px !important;
  font-size: 0.9rem;
  border: 1px solid rgba(255,255,255,0.1) !important;
  transition: background 0.2s, color 0.2s !important;
}
.btn-clear-rec:hover {
  background: rgba(255,80,80,0.2) !important;
  color: #ff6666 !important;
  transform: none !important;
  box-shadow: none !important;
}
#minimap-wrap {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 50;
  pointer-events: none;
  /* fade in al iniciar */
  opacity: 0;
  animation: minimapFadeIn 0.8s 0.5s ease forwards;
}
@keyframes minimapFadeIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}

#minimap-canvas {
  display: block;
  width:  140px;
  height: 140px;
  border-radius: 10px;
  border: 1.5px solid rgba(57,255,20,0.25);
  background: rgba(5,8,18,0.82);
  box-shadow: 0 0 18px rgba(57,255,20,0.08),
              inset 0 0 12px rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
}

#minimap-label {
  text-align: center;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.45rem;
  color: rgba(57,255,20,0.4);
  letter-spacing: 3px;
  margin-top: 3px;
  text-transform: uppercase;
}

/* En móvil el minimapa es más pequeño y se sube
   por encima del joystick */
@media (max-width: 900px) {
  #minimap-wrap {
    bottom: 150px;
    right: 12px;
  }
  #minimap-canvas {
    width:  90px;
    height: 90px;
  }
}

/* ---- Barra de boost en HUD ---- */
.hud-boost-box {
  min-width: 100px;
  gap: 4px;
}
.boost-bar-bg {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
}
.boost-bar-fill {
  height: 100%;
  width: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #00d4ff, #39ff14);
  transition: width 0.1s linear, background 0.2s;
  box-shadow: 0 0 6px rgba(57,255,20,0.6);
}

/* ---- Stat de kills en fin ---- */
.end-stat-kills .end-kills-val {
  color: #ff2d78;
  text-shadow: 0 0 12px rgba(255,45,120,0.6);
}

/* ---- Pantalla fin mejorada ---- */
#screen-end-bg-update {
  background: radial-gradient(ellipse at 50% 30%, #0d1f0d 0%, #0a0e1a 70%);
}
.end-emoji {
  animation: endEmojiBounce 0.6s cubic-bezier(.18,.89,.32,1.4) forwards;
}
@keyframes endEmojiBounce {
  0%   { transform: scale(0) rotate(-20deg); opacity: 0; }
  70%  { transform: scale(1.15) rotate(5deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg);  opacity: 1; }
}

/* Partícula de boost en cola (canvas overlay no necesita CSS,
   pero los .end-stat animados sí necesitan overflow visible) */
.end-stats { overflow: visible; }

/* Botones HUD */
.hud-controls {
  display:flex; gap:6px; margin-left:auto;
}
.hud-btn {
  font-size:1.1rem; width:40px; height:40px;
  border-radius:10px; border:1.5px solid rgba(57,255,20,0.3);
  background:rgba(0,0,0,0.55); color:white;
  cursor:pointer; backdrop-filter:blur(6px);
  transition:background 0.15s, transform 0.1s;
}
.hud-btn:hover { background:rgba(57,255,20,0.2); transform:scale(1.08); }
.hud-btn-menu { border-color:rgba(255,100,100,0.3); }
.hud-btn-menu:hover { background:rgba(255,100,100,0.2); }

/* Overlay pausa */
.pause-overlay {
  position:fixed; inset:0; z-index:8000; /* debajo del ⚙️ (9000) pero encima de todo lo demás */
  display:flex; align-items:center; justify-content:center;
  background:rgba(0,0,0,0.7);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  pointer-events:auto; /* forzar clicable */
}
.pause-box {
  background:linear-gradient(160deg,#0d1a0d,#0a1520);
  border:2px solid rgba(57,255,20,0.4);
  border-radius:24px; padding:2.5rem 3rem;
  display:flex; flex-direction:column;
  align-items:center; gap:1rem;
  box-shadow:0 0 60px rgba(57,255,20,0.1);
  animation:pausePop 0.3s cubic-bezier(.18,.89,.32,1.28);
}
@keyframes pausePop {
  from{transform:scale(0.8);opacity:0}
  to{transform:scale(1);opacity:1}
}
.pause-icon { font-size:3rem; }
.pause-title {
  font-family:'Orbitron',sans-serif;
  font-size:1.8rem; color:white;
}
.pause-btn {
  width:100%; padding:12px 24px;
  font-family:'Orbitron',sans-serif; font-size:0.9rem;
  border-radius:50px; border:none;
  background:linear-gradient(135deg,#39ff14,#00c40f);
  color:#0a0e1a; cursor:pointer;
  box-shadow:0 5px 0 #007a0a;
  transition:transform 0.15s;
}
.pause-btn:hover { transform:translateY(-2px); }
.pause-btn-home {
  background:linear-gradient(135deg,#00d4ff,#0099cc);
  box-shadow:0 5px 0 #005f80;
  color:#0a0e1a;
}

/* ---- Botón ⚙️ visible en juego ---- */
.hud-btn-settings {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 9000; /* encima del canvas y del HUD */
  width: 48px;   /* más grande = más fácil de tocar en móvil */
  height: 48px;
  border-radius: 50%;
  border: 2px solid rgba(57,255,20,0.3);
  background: rgba(10,14,26,0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: 1.3rem;
  cursor: pointer;
  color: white;
  opacity: 0.75;
  transition: opacity 0.15s, transform 0.15s, background 0.15s;
  touch-action: manipulation; /* evita delay de 300ms en iOS/Android */
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: auto; /* forzar clicable aunque hud-top tenga none */
}
.hud-btn-settings:hover,
.hud-btn-settings:active {
  opacity: 1;
  background: rgba(57,255,20,0.2);
  border-color: rgba(57,255,20,0.8);
  transform: rotate(60deg);
}

/* ---- Volumen dentro del panel de pausa ---- */
.pause-volume {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 4px 0;
}
.volume-slider-pause {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 5px;
  border-radius: 3px;
  background: rgba(255,255,255,0.15);
  outline: none;
  cursor: pointer;
  transition: opacity 0.3s;
}
.volume-slider-pause::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px rgba(57,255,20,0.7);
  cursor: pointer;
}
.volume-slider-pause::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--neon-green);
  border: none;
  cursor: pointer;
}

/* Modal Ko-fi */
.kofi-backdrop {
  position:absolute; inset:0;
  background:rgba(0,0,0,0.65);
  backdrop-filter:blur(4px);
}
.kofi-box {
  position:relative; z-index:1;
  background:linear-gradient(160deg,#0d1a0d 0%,#0a1f15 100%);
  border:3px solid #ffdd57;
  border-radius:24px; padding:2rem;
  max-width:320px; width:90%;
  text-align:center;
  box-shadow:0 0 0 6px rgba(255,221,87,0.12), 0 20px 60px rgba(0,0,0,0.6);
  animation:kofiPop 0.4s cubic-bezier(.18,.89,.32,1.28);
}
@keyframes kofiPop {
  from{transform:scale(0.7) translateY(30px);opacity:0}
  to{transform:scale(1) translateY(0);opacity:1}
}
.kofi-close {
  position:absolute; top:12px; right:14px;
  background:rgba(255,255,255,0.1); border:none;
  color:#aaa; font-size:1rem; cursor:pointer;
  width:28px; height:28px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
}
.kofi-close:hover { color:white; background:rgba(255,255,255,0.2); }
.kofi-chest { margin-bottom:0.5rem; }
.kofi-chest svg { width:80px; height:60px; overflow:visible; }
.km-coin1 { animation:coinPop 1.8s ease-in-out infinite 0s; }
.km-coin2 { animation:coinPop 1.8s ease-in-out infinite 0.3s; }
.km-coin3 { animation:coinPop 1.8s ease-in-out infinite 0.6s; }
@keyframes coinPop {
  0%,60%,100%{opacity:0;transform:translateY(0) scale(0.5)}
  30%{opacity:1;transform:translateY(-10px) scale(1)}
}
#km-lid { transform-origin:40px 28px; animation:lidOpen 1.8s ease-in-out infinite; }
@keyframes lidOpen {
  0%,100%{transform:rotate(0deg)}
  20%,50%{transform:rotate(-25deg)}
  70%{transform:rotate(0deg)}
}
.kofi-title {
  font-family:'Orbitron',sans-serif;
  font-size:1.4rem; color:white; margin-bottom:0.5rem;
}
.kofi-text {
  font-size:0.85rem; color:#b8f5d0; line-height:1.6; margin-bottom:1.2rem;
}
.kofi-text strong { color:#ffdd57; }
.kofi-btn {
  display:inline-flex; align-items:center; gap:8px;
  background:#ff5f5f; color:white;
  font-family:'Orbitron',sans-serif; font-size:0.9rem;
  padding:12px 24px; border-radius:50px; border:none;
  text-decoration:none; cursor:pointer;
  box-shadow:0 5px 0 #c02020; margin-bottom:0.8rem;
  transition:transform 0.12s;
}
.kofi-btn:hover { transform:translateY(-2px); }
.kofi-skip {
  display:block; width:100%;
  background:none; border:none;
  color:#6b9e80; font-size:0.78rem;
  cursor:pointer; padding:6px;
  font-family:'Nunito',sans-serif;
}
.kofi-skip:hover { color:#a8d8b9; }

/* ============================================
   MÓVIL — Pantalla de fin con scroll
============================================ */
@media (max-width: 600px) {
  #screen-end {
    /* En móvil, empezar desde arriba para poder hacer scroll */
    align-items: flex-start;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .end-content {
    padding: 1.5rem 1rem 4rem 1rem;
    gap: 0.9rem;
  }
  .end-emoji { font-size: 3.5rem; }
  .end-title { font-size: 1.5rem; }
  .end-stat {
    padding: 0.6rem 1rem;
  }
  .end-stat-val {
    font-size: 1.3rem;
  }
  .end-btns {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ============================================
   CONTROL DE VOLUMEN EN HUD
============================================ */
.hud-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.volume-wrap {
  display: flex;
  align-items: center;
  transition: opacity 0.3s;
}
.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 70px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.2);
  outline: none;
  cursor: pointer;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 6px rgba(57,255,20,0.6);
  cursor: pointer;
}
.volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--neon-green);
  border: none;
  cursor: pointer;
}
/* En móvil, slider más ancho y fácil de tocar */
@media (max-width: 600px) {
  .volume-slider { width: 55px; }
}

/* ============================================
   BOTÓN BOOST (posición fija bottom-right)
============================================ */
.btn-boost {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 60;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  padding: 14px 20px;
  border-radius: 50px;
  border: none;
  background: linear-gradient(135deg, #ff2d78, #cc0055);
  color: white;
  cursor: pointer;
  box-shadow: 0 5px 0 #7a0038, 0 0 20px rgba(255,45,120,0.4);
  transition: transform 0.05s, box-shadow 0.05s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}
.btn-boost:active {
  transform: translateY(3px);
  box-shadow: 0 2px 0 #7a0038;
}
/* Solo visible en móvil */
@media (min-width: 601px) {
  .btn-boost { display: none; }
}

/* ============================================
   PANTALLA DE SELECCIÓN DE NIVEL
============================================ */
#screen-level {
  position: relative;
  overflow: hidden;
}

#level-bg-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.level-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  padding: 20px 16px 32px;
  box-sizing: border-box;
}

.level-back-btn {
  align-self: flex-start;
  background: rgba(57,255,20,0.08);
  border: 1.5px solid rgba(57,255,20,0.3);
  color: #7fff7f;
  font-family: 'Nunito', sans-serif;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: 50px;
  cursor: pointer;
  margin-bottom: 12px;
  transition: background 0.15s, color 0.15s;
}
.level-back-btn:hover {
  background: rgba(57,255,20,0.18);
  color: #39ff14;
}

.level-header {
  text-align: center;
  margin-bottom: 24px;
}
.level-snake-icon { font-size: 2.8rem; margin-bottom: 4px; }
.level-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  font-weight: 900;
  color: #fff;
  margin: 0 0 4px;
  letter-spacing: 1px;
}
.level-title span { color: #39ff14; text-shadow: 0 0 20px rgba(57,255,20,0.7); }
.level-sub {
  font-family: 'Nunito', sans-serif;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  margin: 0;
}

/* Grid of level cards */
.level-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  width: 100%;
  max-width: 680px;
}

@media (max-width: 480px) {
  .level-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}

.level-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(13,31,10,0.95), rgba(10,24,8,0.98));
  border: 2px solid rgba(57,255,20,0.2);
  border-radius: 16px;
  padding: 16px 14px 14px;
  cursor: pointer;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.12s, border-color 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.level-card:hover, .level-card:focus {
  transform: translateY(-3px) scale(1.02);
  border-color: rgba(57,255,20,0.6);
  box-shadow: 0 8px 30px rgba(57,255,20,0.2), 0 4px 20px rgba(0,0,0,0.5);
  outline: none;
}
.level-card:active { transform: translateY(1px) scale(0.99); }

/* Infierno card — red tint */
.level-card-elite {
  background: linear-gradient(160deg, rgba(31,8,8,0.97), rgba(20,5,5,0.99));
  border-color: rgba(255,45,120,0.3);
}
.level-card-elite:hover {
  border-color: rgba(255,45,120,0.7);
  box-shadow: 0 8px 30px rgba(255,45,120,0.25), 0 4px 20px rgba(0,0,0,0.5);
}

.level-card-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle at 50% 0%, rgba(57,255,20,0.06), transparent 60%);
  pointer-events: none;
  border-radius: inherit;
}
.level-card-elite .level-card-glow {
  background: radial-gradient(circle at 50% 0%, rgba(255,45,120,0.06), transparent 60%);
}

.level-emoji {
  font-size: 2rem;
  line-height: 1;
}

.level-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 900;
  color: #39ff14;
  letter-spacing: 1.5px;
}
.level-card-elite .level-name { color: #ff2d78; }

.level-desc {
  font-family: 'Nunito', sans-serif;
  font-size: 0.75rem;
  color: rgba(200,255,200,0.75);
  line-height: 1.4;
}
.level-card-elite .level-desc { color: rgba(255,200,200,0.75); }

.level-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 2px;
}
.ltag {
  font-family: 'Nunito', sans-serif;
  font-size: 0.65rem;
  font-weight: 900;
  color: rgba(57,255,20,0.9);
  background: rgba(57,255,20,0.08);
  border: 1px solid rgba(57,255,20,0.2);
  border-radius: 4px;
  padding: 2px 6px;
}
.level-card-elite .ltag {
  color: rgba(255,100,150,0.9);
  background: rgba(255,45,120,0.08);
  border-color: rgba(255,45,120,0.2);
}

.level-rec {
  display: none;
  font-family: 'Nunito', sans-serif;
  font-size: 0.7rem;
  color: rgba(255,221,0,0.85);
  margin-top: 4px;
}
.level-rec strong { color: #ffdd00; }

/* Level card entrance animation */
@keyframes levelCardIn {
  from { opacity: 0; transform: translateY(18px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
#screen-level.active .level-card {
  animation: levelCardIn 0.35s cubic-bezier(0.22,0.9,0.36,1) both;
}
#screen-level.active .level-card:nth-child(1) { animation-delay: 0.05s; }
#screen-level.active .level-card:nth-child(2) { animation-delay: 0.12s; }
#screen-level.active .level-card:nth-child(3) { animation-delay: 0.19s; }
#screen-level.active .level-card:nth-child(4) { animation-delay: 0.26s; }

@keyframes levelHeaderIn {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
#screen-level.active .level-header {
  animation: levelHeaderIn 0.3s ease both;
}