:root {
  --rojo-principal: #D82828; 
  --rojo-claro: #F05050;     
  --azul-principal: #1C50A4; 
  --azul-oscuro: #0F3A79;    
  --fondo-base: #F5F5F5;     
  --texto-principal: #222222;
  --bordes: #CCCCCC;         
}

/* Reset básico */
* { margin:0; padding:0; box-sizing:border-box; font-family: "Inter", sans-serif; }

body {
  background: linear-gradient(90deg, rgba(0,81,255,0.52) 0%, rgba(255,0,0,0.51) 100%);
  min-height:100vh; color: var(--texto-principal);
}

header {
  width:100%; background: var(--azul-principal);
  border-bottom:1px solid var(--bordes);
  position:fixed; top:0; z-index:100;
  padding:0.8rem 0;
}

nav {
  width:90%; max-width:1200px;
  margin:auto; display:flex;
  justify-content:space-between;
  align-items:center;
}

.logo a img { width:50px; }

.menu { list-style:none; display:flex; gap:2rem; }
.menu li a { color:#fff; text-decoration:none; font-weight:500; transition:0.3s; }
.menu li a:hover { color: var(--rojo-claro); }

main { padding:2rem 1rem; text-align:center; padding-top:100px; }

.car-slider { width:500%; max-width:1000px; margin:3rem auto; overflow:hidden; border-radius:12px; border:1px solid var(--bordes);}
.slider-track { display:flex; width:max-content; animation:scroll 25s linear infinite; }
.slide { flex:none; margin-right:10px; }
.slide img { width:220px; height:140px; object-fit:cover; border-radius:8px; }

@keyframes scroll { 0%{ transform:translateX(0);} 100%{transform:translateX(-50%);} }

@media(max-width:768px){
  .slide img { width:140px; height:90px; }
}
@media(max-width:480px){
  .slide img { width:120px; height:80px; }
}

/* Chatbot */
#chatbot { position:fixed; bottom:80px; right:20px; width:280px; background:#0F3A79; border-radius:16px; color:#fff; display:flex; flex-direction:column; overflow:hidden; z-index:999; transition: transform 0.4s, opacity 0.4s; }
#chatbot.hide { transform:translateX(300px); opacity:0; }
.chat-header { padding:0.8rem; background:#1C50A4; display:flex; justify-content:space-between; align-items:center; font-weight:600; font-size:0.95rem; }
.chat-header button { background:none; border:none; color:#fff; font-size:1.2rem; cursor:pointer; }
.chat-messages { max-height:180px; padding:0.8rem; display:flex; flex-direction:column; gap:0.5rem; overflow-y:auto; scroll-behavior:smooth; }
.message { background:#1C50A4; padding:0.5rem 0.8rem; border-radius:12px; font-size:0.85rem; line-height:1.3; }
.message.from-bot { background: #D82828; color:#fff; align-self:flex-start; }
.chat-input { padding:0.6rem; border-top:1px solid rgba(255,255,255,0.2); text-align:center; }
.chat-input button { background: var(--rojo-principal); border:none; padding:0.5rem 1rem; border-radius:20px; color:#fff; font-weight:600; cursor:pointer; transition:0.3s; }
.chat-input button:hover { background: var(--rojo-claro); }

/* Botones principales */
.btn {
  display: inline-block;
  background: var(--azul-principal);
  color: #fff;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.3s;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn:hover {
  background: var(--rojo-claro);
  box-shadow: 0 6px 8px rgba(0,0,0,0.15);
}

/* Footer */
footer {
  width: 100%;
  background: var(--azul-oscuro);
  color: #fff;
  text-align: center;
  font-size: 0.95rem;
  padding: 1.5rem 0;
  margin-top: 3rem;
  box-shadow: 0 -4px 6px rgba(0,0,0,0.1);
}

footer a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}

footer a:hover {
  color: var(--rojo-claro);
}