/* =========================================================
   RESET + BASE
   ========================================================= */
*{margin:0;padding:0;box-sizing:border-box}

html,body{
  height:100%;
  overflow:hidden;
  background:#0a0000;
  font-family:'Cinzel','Orbitron','Segoe UI',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeSpeed;
}

/* Solo los elementos que se animan SIEMPRE llevan will-change */
.light-rays,
.logo-aura,
.logo-ring,
.chat-toggle-btn::after{
  will-change: transform, opacity;
}

/* GPU layer para elementos animados */
.glow-orb,.logo-wrapper,.logo-ring,.logo-aura,.logo-sparkle,
.light-rays,.divider,.subtitle,.nav-btn,.chat-toggle-btn,
.corner,.chat-window,.logo-img{
  transform:translateZ(0);
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}

/* Aislamiento de composición */
.intro-container{contain: layout style paint}
.nav-menu{contain: layout style paint}
.chat-window{contain: layout style paint}
.chat-body{contain: content}

/* =========================================================
   CANVAS
   ========================================================= */
#particles-canvas{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:1;
  pointer-events:none;
  transform:translateZ(0);
}

/* =========================================================
   CONTENEDOR
   ========================================================= */
.intro-container{
  position:relative;
  width:100%;
  height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  z-index:10;
  background:radial-gradient(circle at 50% 30%,rgba(80,10,0,.7) 0%,#0a0000 90%);
  overflow:hidden;
  perspective:1200px;
  perspective-origin:50% 40%;
  transform-style:preserve-3d;
}

/* =========================================================
   RAYOS DE LUZ — animación por background-position (CPU-friendly)
   ========================================================= */
.light-rays{
  position:absolute;
  top:-50%;left:-20%;
  width:140%;height:200%;
  background:
    repeating-linear-gradient(45deg,transparent,transparent 40px,rgba(255,60,0,.03) 40px,rgba(255,60,0,.03) 80px);
  background-size:200% 200%;
  animation:rayShift 12s ease-in-out infinite;
  z-index:2;
  pointer-events:none;
  will-change:background-position;
}
@keyframes rayShift{
  0%,100%{background-position:0% 0%}
  50%{background-position:100% 100%}
}

/* =========================================================
   ORBES — SIN filter:blur() (usamos gradientes ya difusos)
   ========================================================= */
.glow-orb{
  position:absolute;
  border-radius:50%;
  z-index:5;
  animation:orbFloat 14s ease-in-out infinite alternate;
  pointer-events:none;
  opacity:.3;
  transform:translateZ(0);
}
.orb1{
  width:450px;height:450px;top:-120px;left:-120px;
  background:radial-gradient(circle,rgba(255,68,0,.9) 0%,rgba(255,68,0,.4) 35%,transparent 70%);
  animation-duration:14s;
}
.orb2{
  width:550px;height:550px;bottom:-180px;right:-120px;
  background:radial-gradient(circle,rgba(255,170,0,.8) 0%,rgba(255,170,0,.35) 40%,transparent 70%);
  animation-duration:18s;
}
.orb3{
  width:350px;height:350px;top:45%;left:75%;
  background:radial-gradient(circle,rgba(255,34,0,.85) 0%,rgba(255,34,0,.4) 35%,transparent 70%);
  animation-duration:16s;
}

@keyframes orbFloat{
  0%{transform:translate3d(0,0,0) scale(1);opacity:.25}
  100%{transform:translate3d(80px,-60px,0) scale(1.2);opacity:.45}
}

/* =========================================================
   LOGO
   ========================================================= */
.logo-container{
  position:relative;
  z-index:25;
  margin-bottom:5px;
  display:flex;
  justify-content:center;
  align-items:center;
  perspective:1000px;
  transform-style:preserve-3d;
  opacity:0;
  animation:logoEntrance .8s cubic-bezier(.2,.9,.3,1) forwards;
}

@keyframes logoEntrance{
  0%{opacity:0;transform:scale(.6) rotateY(35deg) translate3d(0,-25px,0)}
  100%{opacity:1;transform:scale(1) rotateY(0) translate3d(0,0,0)}
}

.logo-wrapper{
  position:relative;
  display:inline-block;
  padding:10px 30px;
  border-radius:20px;
  background:radial-gradient(circle at 50% 50%,rgba(255,100,0,.15),transparent 70%);
  animation:logoFloat 2.4s ease-in-out infinite;
  transform-style:preserve-3d;
}

@keyframes logoFloat{
  0%,100%{transform:translate3d(0,0,0) rotateX(0) rotateY(0)}
  25%{transform:translate3d(0,-6px,0) rotateX(2deg) rotateY(-2deg)}
  50%{transform:translate3d(0,-12px,0) rotateX(0) rotateY(0)}
  75%{transform:translate3d(0,-6px,0) rotateX(-2deg) rotateY(2deg)}
}

.logo-img{
  max-width:90vw;
  width:clamp(280px,60vw,700px);
  height:auto;
  display:block;
  position:relative;
  z-index:2;
  /* Reducido a 2 drop-shadow (antes 3) */
  filter:
    drop-shadow(0 0 18px #ff4400)
    drop-shadow(0 0 45px #aa1100);
  transition:transform .35s cubic-bezier(.2,.9,.3,1);
  transform:translateZ(0);
}
.logo-img:hover{transform:scale(1.04) translateZ(0)}

/* Aura — SIN blur, ya es radial-gradient suave */
.logo-aura{
  position:absolute;
  top:50%;left:50%;
  width:120%;height:120%;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,100,0,.5) 0%,rgba(255,50,0,.2) 30%,transparent 70%);
  z-index:1;
  animation:auraPulse 1.5s ease-in-out infinite;
  pointer-events:none;
  transform:translate(-50%,-50%) translateZ(0);
  opacity:.6;
}

@keyframes auraPulse{
  0%,100%{transform:translate(-50%,-50%) scale(1) translateZ(0);opacity:.55}
  50%{transform:translate(-50%,-50%) scale(1.18) translateZ(0);opacity:.95}
}

/* Anillo giratorio */
.logo-ring{
  position:absolute;
  top:50%;left:50%;
  width:110%;height:110%;
  border-radius:50%;
  border:2px solid transparent;
  border-top-color:#ffaa00;
  border-right-color:#ff4400;
  z-index:0;
  animation:ringSpin 2.6s linear infinite;
  pointer-events:none;
  opacity:.8;
  transform:translate(-50%,-50%) translateZ(0);
}
.logo-ring::before{
  content:'';
  position:absolute;
  inset:10px;
  border-radius:50%;
  border:1px solid transparent;
  border-bottom-color:#ffcc00;
  border-left-color:#ff2200;
  animation:ringSpin 1.8s linear infinite reverse;
}
@keyframes ringSpin{
  0%{transform:translate(-50%,-50%) rotate(0) translateZ(0)}
  100%{transform:translate(-50%,-50%) rotate(360deg) translateZ(0)}
}

/* Sparkles */
.logo-sparkle{
  position:absolute;
  width:8px;height:8px;
  background:#ffdd88;
  border-radius:50%;
  box-shadow:0 0 15px #ffaa00,0 0 30px #ff6600;
  animation:sparkleMove 2s ease-in-out infinite;
  pointer-events:none;
  z-index:3;
  transform:translateZ(0);
}
.sparkle-1{top:10%;left:15%;animation-delay:0s}
.sparkle-2{top:20%;right:10%;animation-delay:.5s}
.sparkle-3{bottom:15%;left:20%;animation-delay:1s}
.sparkle-4{bottom:25%;right:15%;animation-delay:1.5s}

@keyframes sparkleMove{
  0%,100%{transform:scale(1) translateZ(0);opacity:.4}
  50%{transform:scale(2) translateZ(0);opacity:1}
}

/* =========================================================
   SUBTÍTULO
   ========================================================= */
.subtitle{
  display:inline-block;
  font-size:clamp(.8rem,2vw,1.3rem);
  letter-spacing:8px;
  text-transform:uppercase;
  font-weight:300;
  margin:15px 0 20px;
  z-index:20;
  text-align:center;
  padding:0 15px;
  position:relative;
  transform:translateZ(0);
}
.subtitle span{
  display:inline-block;
  background:linear-gradient(90deg,transparent,#ffcc66,#ff6600,#ffcc66,transparent);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  animation:subtitlePulse 1.6s ease-in-out infinite;
  will-change:transform,opacity;
}

@keyframes subtitlePulse{
  0%,100%{transform:scale(1) translateZ(0);opacity:.75}
  50%{transform:scale(1.05) translateZ(0);opacity:1}
}

/* =========================================================
   DIVIDER
   ========================================================= */
.divider{
  width:420px;
  max-width:90vw;
  height:3px;
  background:linear-gradient(90deg,transparent,#ffaa00,#ffdd88,#ffaa00,transparent);
  margin:10px auto 25px;
  z-index:20;
  box-shadow:0 0 15px #ff6600;
  transform-origin:center;
  animation:dividerPulse 2s ease-in-out infinite alternate;
  transform:translateZ(0);
}
@keyframes dividerPulse{
  0%{transform:scaleX(.5) translateZ(0);opacity:.6}
  100%{transform:scaleX(1) translateZ(0);opacity:1}
}

/* =========================================================
   NAV
   ========================================================= */
.nav-menu{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:15px;
  margin:5px 0 30px;
  z-index:30;
  padding:0 20px;
  max-width:950px;
}

.nav-btn{
  padding:13px 30px;
  font-size:.95rem;
  font-weight:bold;
  letter-spacing:3px;
  text-transform:uppercase;
  color:#ffdd99;
  background:rgba(40,5,0,.85);
  border:2px solid #cc5500;
  border-radius:8px;
  cursor:pointer;
  /* backdrop-filter QUITADO: recalcula cada frame */
  box-shadow:0 0 15px rgba(255,80,0,.35),inset 0 0 12px rgba(255,80,0,.15);
  transition:transform .22s cubic-bezier(.2,.9,.3,1),box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  font-family:'Orbitron','Segoe UI',sans-serif;
  position:relative;
  overflow:hidden;
  text-decoration:none;
  display:inline-block;
  text-align:center;
  transform:translateZ(0);
}

.nav-btn::before{
  content:'';
  position:absolute;
  top:0;left:-100%;
  width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,200,0,.3),transparent);
  transition:left .5s ease;
  pointer-events:none;
}
.nav-btn:hover::before{left:100%}

.nav-btn:hover{
  background:rgba(180,40,0,.9);
  box-shadow:0 0 30px #ff6600,inset 0 0 20px #ffaa00;
  border-color:#ffaa00;
  color:#fff;
  transform:translate3d(0,-4px,0) scale(1.04);
}

.nav-btn.whatsapp{background:rgba(10,60,20,.85);border-color:#25d366;color:#aaffbb;box-shadow:0 0 15px rgba(37,211,102,.3)}
.nav-btn.whatsapp:hover{background:rgba(20,120,40,.9);box-shadow:0 0 30px #25d366,inset 0 0 20px #aaffcc;border-color:#aaffcc;color:#fff}

.nav-btn.download{background:rgba(80,20,0,.85);border-color:#ffaa00;color:#ffe066}
.nav-btn.download:hover{background:rgba(200,80,0,.9);box-shadow:0 0 35px #ffaa00,inset 0 0 22px #ffee88;border-color:#ffee88;color:#fff}

/* =========================================================
   CHAT TOGGLE
   ========================================================= */
.chat-toggle-btn{
  position:fixed;
  bottom:30px;right:30px;
  width:70px;height:70px;
  border-radius:50%;
  background:linear-gradient(135deg,#ff3300,#ffaa00);
  border:3px solid #ffdd88;
  color:#fff;
  font-size:1.8rem;
  cursor:pointer;
  z-index:1000;
  box-shadow:0 0 25px #ff4400,0 0 45px #ff2200;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .22s cubic-bezier(.2,.9,.3,1);
  transform:translateZ(0);
}
.chat-toggle-btn::after{
  content:'';
  position:absolute;
  inset:-8px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,100,0,.5),transparent 70%);
  z-index:-1;
  animation:togglePulse 1.6s ease-in-out infinite;
  pointer-events:none;
}
@keyframes togglePulse{
  0%,100%{transform:scale(1);opacity:.4}
  50%{transform:scale(1.25);opacity:.8}
}
.chat-toggle-btn:hover{
  transform:scale(1.1) rotate(10deg) translateZ(0);
}
.chat-toggle-btn .badge{
  position:absolute;
  top:-5px;right:-5px;
  background:#ff0000;
  color:#fff;
  font-size:.7rem;
  font-weight:bold;
  width:22px;height:22px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  border:2px solid #fff;
  animation:badgePulse 1s ease-in-out infinite;
  will-change:transform;
}
@keyframes badgePulse{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.2)}
}

/* =========================================================
   CHAT WINDOW
   ========================================================= */
.chat-window{
  position:fixed;
  bottom:110px;right:30px;
  width:380px;
  max-width:calc(100vw - 40px);
  height:520px;
  max-height:calc(100vh - 150px);
  background:linear-gradient(180deg,rgba(30,5,0,.98),rgba(15,2,0,.98));
  border:3px solid #cc5500;
  border-radius:15px;
  box-shadow:0 0 40px rgba(255,80,0,.5),0 0 70px rgba(255,30,0,.25);
  z-index:999;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transform:translate3d(0,30px,0) scale(.9);
  opacity:0;
  pointer-events:none;
  transition:transform .32s cubic-bezier(.2,.9,.3,1),opacity .32s ease;
  will-change:transform,opacity;
}
.chat-window.open{
  transform:translate3d(0,0,0) scale(1);
  opacity:1;
  pointer-events:all;
}

.chat-header{
  padding:15px 20px;
  background:linear-gradient(90deg,#4a0a00,#8a1a00,#4a0a00);
  border-bottom:2px solid #ff6600;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.chat-header-left{display:flex;align-items:center;gap:12px}
.chat-avatar{
  width:40px;height:40px;
  border-radius:50%;
  background:linear-gradient(135deg,#ff6600,#ffaa00);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.3rem;
  border:2px solid #ffdd88;
  box-shadow:0 0 10px #ff6600;
}
.chat-info h3{
  color:#ffdd99;
  font-size:.95rem;
  letter-spacing:1px;
  font-family:'Orbitron',sans-serif;
}
.chat-info .status{
  color:#66ff88;
  font-size:.7rem;
  display:flex;
  align-items:center;
  gap:5px;
  letter-spacing:1px;
}
.status-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:#66ff88;
  box-shadow:0 0 8px #66ff88;
  animation:statusBlink 1.2s ease-in-out infinite;
}
@keyframes statusBlink{
  0%,100%{opacity:1}
  50%{opacity:.4}
}
.chat-close-btn{
  background:transparent;
  border:2px solid #ff6600;
  color:#ffdd99;
  width:32px;height:32px;
  border-radius:50%;
  cursor:pointer;
  font-size:1rem;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.chat-close-btn:hover{
  background:#ff3300;
  color:#fff;
  transform:rotate(90deg);
}

.chat-body{
  flex:1;
  padding:15px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
  scrollbar-width:thin;
  scrollbar-color:#ff6600 #1a0500;
}
.chat-body::-webkit-scrollbar{width:6px}
.chat-body::-webkit-scrollbar-track{background:#1a0500}
.chat-body::-webkit-scrollbar-thumb{background:#ff6600;border-radius:3px}

.chat-message{
  display:flex;
  gap:10px;
  animation:msgSlide .28s cubic-bezier(.2,.9,.3,1);
}
@keyframes msgSlide{
  from{opacity:0;transform:translate3d(0,15px,0)}
  to{opacity:1;transform:translate3d(0,0,0)}
}

.msg-avatar{
  width:34px;height:34px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.9rem;
  flex-shrink:0;
  border:2px solid #ffaa00;
  background:linear-gradient(135deg,#4a0a00,#8a1a00);
  color:#ffdd99;
  font-weight:bold;
}
.msg-content{flex:1;min-width:0}
.msg-author{
  font-size:.75rem;
  color:#ffaa00;
  font-weight:bold;
  letter-spacing:1px;
  margin-bottom:3px;
}
.msg-author .time{color:#aa6633;font-weight:normal;font-size:.65rem;margin-left:6px}

.msg-text{
  background:rgba(60,10,0,.8);
  border-left:3px solid #ff6600;
  padding:8px 12px;
  border-radius:0 10px 10px 10px;
  color:#ffddcc;
  font-size:.85rem;
  line-height:1.4;
  word-wrap:break-word;
  font-family:'Segoe UI',sans-serif;
}

.chat-message.own{flex-direction:row-reverse}
.chat-message.own .msg-avatar{background:linear-gradient(135deg,#8a1a00,#ff6600);border-color:#ffdd88}
.chat-message.own .msg-author{text-align:right;color:#ffdd88}
.chat-message.own .msg-text{
  background:rgba(120,30,0,.85);
  border-left:none;
  border-right:3px solid #ffaa00;
  border-radius:10px 0 10px 10px;
}

.chat-message.system{justify-content:center}
.chat-message.system .msg-content{flex:0 0 auto}
.chat-message.system .msg-text{
  background:rgba(80,40,0,.6);
  border:1px solid #ffaa00;
  border-radius:20px;
  color:#ffdd88;
  font-size:.75rem;
  text-align:center;
  font-style:italic;
  padding:6px 16px;
}

.typing-indicator{
  display:flex;
  align-items:center;
  gap:5px;
  padding:5px 15px;
  color:#ffaa00;
  font-size:.75rem;
  font-style:italic;
  opacity:0;
  transition:opacity .22s ease;
}
.typing-indicator.visible{opacity:1}
.typing-dots{display:flex;gap:3px}
.typing-dots span{
  width:5px;height:5px;
  border-radius:50%;
  background:#ffaa00;
  animation:typingBounce 1s infinite;
}
.typing-dots span:nth-child(2){animation-delay:.15s}
.typing-dots span:nth-child(3){animation-delay:.3s}
@keyframes typingBounce{
  0%,60%,100%{transform:translate3d(0,0,0)}
  30%{transform:translate3d(0,-6px,0)}
}

.chat-footer{
  padding:12px 15px;
  background:rgba(20,3,0,.95);
  border-top:2px solid #8a1a00;
  display:flex;
  gap:10px;
  align-items:center;
}
.chat-input{
  flex:1;
  padding:12px 16px;
  background:rgba(60,15,0,.7);
  border:2px solid #8a1a00;
  border-radius:25px;
  color:#ffddcc;
  font-size:.85rem;
  outline:none;
  font-family:'Segoe UI',sans-serif;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.chat-input::placeholder{color:#aa6644;font-style:italic}
.chat-input:focus{
  border-color:#ff6600;
  box-shadow:0 0 12px rgba(255,100,0,.5);
  background:rgba(80,20,0,.8);
}

.chat-send-btn{
  width:45px;height:45px;
  border-radius:50%;
  background:linear-gradient(135deg,#ff3300,#ffaa00);
  border:2px solid #ffdd88;
  color:#fff;
  font-size:1.1rem;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:transform .2s cubic-bezier(.2,.9,.3,1);
  flex-shrink:0;
}
.chat-send-btn:hover{transform:scale(1.1) rotate(-10deg)}
.chat-send-btn:active{transform:scale(.95)}

/* =========================================================
   ESQUINAS
   ========================================================= */
.corner{
  position:absolute;
  width:120px;height:120px;
  border:3px solid rgba(255,120,0,.5);
  z-index:15;
  pointer-events:none;
}
.corner-tl{top:30px;left:30px;border-right:none;border-bottom:none;border-radius:20px 0 0 0}
.corner-tr{top:30px;right:30px;border-left:none;border-bottom:none;border-radius:0 20px 0 0}
.corner-bl{bottom:30px;left:30px;border-right:none;border-top:none;border-radius:0 0 0 20px}
.corner-br{bottom:30px;right:30px;border-left:none;border-top:none;border-radius:0 0 20px 0}

/* =========================================================
   FOOTER TEXT
   ========================================================= */
.footer-text{
  position:absolute;
  bottom:55px;
  font-size:.8rem;
  color:#cc7733;
  letter-spacing:3px;
  text-transform:uppercase;
  z-index:20;
  text-shadow:0 0 8px #442200;
  animation:fadeInOut 2.8s ease-in-out infinite;
  text-align:center;
  width:100%;
  padding:0 15px;
}
@keyframes fadeInOut{
  0%,100%{opacity:.5}
  50%{opacity:1}
}

/* =========================================================
   CRÉDITOS
   ========================================================= */
.credits{
  position:absolute;
  bottom:12px;
  left:50%;
  transform:translateX(-50%) translateZ(0);
  font-size:.8rem;
  color:#ff9944;
  letter-spacing:2px;
  z-index:25;
  text-shadow:0 0 8px #ff4400,0 0 15px #aa2200;
  font-family:'Orbitron','Segoe UI',sans-serif;
  background:rgba(20,3,0,.7);
  padding:6px 18px;
  border-radius:20px;
  border:1px solid rgba(255,120,0,.4);
  transition:transform .28s cubic-bezier(.2,.9,.3,1),border-color .28s ease,color .28s ease,box-shadow .28s ease;
  text-align:center;
  white-space:nowrap;
}
.credits:hover{
  color:#ffdd88;
  border-color:#ffaa00;
  box-shadow:0 0 18px #ff6600;
  transform:translateX(-50%) translateZ(0) scale(1.05);
}
.credits strong{color:#ffcc66;font-weight:bold;text-shadow:0 0 10px #ffaa00}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:768px){
  .corner{width:60px;height:60px}
  .divider{width:150px}
  .nav-menu{gap:10px}
  .nav-btn{padding:10px 18px;font-size:.75rem;letter-spacing:2px;min-width:110px}
  .subtitle{letter-spacing:4px}
  .chat-window{width:calc(100vw - 30px);right:15px;bottom:100px;height:60vh}
  .chat-toggle-btn{width:60px;height:60px;font-size:1.5rem;bottom:20px;right:20px}
  .logo-img{width:clamp(220px,80vw,500px)}
  .credits{font-size:.65rem;bottom:10px;padding:5px 12px;letter-spacing:1px}
}

@media (max-width:480px){
  .nav-menu{flex-direction:column;align-items:center}
  .nav-btn{width:200px}
  .chat-window{height:55vh}
  .credits{font-size:.6rem;bottom:8px;padding:4px 10px;letter-spacing:.5px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}