:root{
  --bg:#070816;
  --panel:rgba(255,255,255,.06);
  --panel2:rgba(0,0,0,.22);
  --border:rgba(255,255,255,.12);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.65);

  /* Neura theme */
  --accent:#8b5cf6;   /* violeta */
  --accent2:#38bdf8;  /* cyan */
  --danger:#ef4444;
  --shadow:0 28px 90px rgba(0,0,0,.55);
  --glow: 0 0 0 6px rgba(139,92,246,.16);
}

*{
  box-sizing:border-box;
  -webkit-tap-highlight-color: transparent;
}

html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;

  /* ✅ LIMPIO: quitamos el morado global */
  background: var(--bg);

  color:var(--text);
}

a{color:#c4b5fd}
.muted{color:var(--muted)}
.small{font-size:12px}
.tiny{font-size:12px}

.app{max-width:1200px;margin:18px auto;padding:0 14px}
.shell{max-width:1200px;margin:18px auto;padding:0 14px}

/* Topbar */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:14px 16px;

  /* ✅ SOLO ARRIBA: morado/cyan aquí */
  background:
    radial-gradient(900px 260px at 18% 0%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(900px 260px at 88% 0%, rgba(56,189,248,.14), transparent 60%),
    var(--panel);

  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
}

.brand{display:flex;align-items:center;gap:12px}
.brand.mini{gap:10px}
.logo{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  font-weight:900;
  background:linear-gradient(135deg, rgba(139,92,246,.35), rgba(56,189,248,.20));
  border:1px solid rgba(255,255,255,.14);
}
.logo.sm{width:38px;height:38px;border-radius:14px}
.brand h1{margin:0;font-size:18px}
.brand p{margin:2px 0 0;color:var(--muted);font-size:13px}

.actions{display:flex;align-items:center;gap:10px}

.pill{
  display:inline-block;
  padding:7px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.18);
  font-size:12px;
  color:var(--muted);
}

/* Buttons */
.btn{
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  padding:10px 12px;
  border-radius:14px;
  cursor:pointer;
  font-weight:650;
  transition: transform .12s ease, filter .12s ease, border-color .12s ease, background .12s ease;
  user-select:none;
  -webkit-user-select:none;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}
.btn:hover{transform: translateY(-1px);filter: brightness(1.10)}
.btn:active{transform: translateY(0px) scale(.98);filter: brightness(1.05)}
.btn:focus-visible{outline:2px solid rgba(56,189,248,.35);outline-offset:2px}

.primary{background:rgba(139,92,246,.22);border-color:rgba(139,92,246,.35)}
.ghost{background:transparent}
.danger{background:rgba(239,68,68,.18);border-color:rgba(239,68,68,.35)}
.full{width:100%}

/* ✅ FIX: hidden siempre gana */
.hidden{display:none !important;}

/* Layout app */
.layout{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:14px;
  margin-top:14px;
}

.sidebar{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  min-height:72vh;
}

.side-top{padding:14px;border-bottom:1px solid var(--border)}
.search input{
  width:100%;
  margin-top:10px;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:var(--panel2);
  color:var(--text);
  outline:none;
}

.chat-list{padding:10px;overflow:auto;flex:1}
.chat-item{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid transparent;
  cursor:pointer;
  margin-bottom:10px;
  background:rgba(0,0,0,.14);
  transition: transform .12s ease, border-color .12s ease, filter .12s ease, background .12s ease;
}
.chat-item:hover{
  border-color:rgba(255,255,255,.14);
  transform: translateY(-1px);
  filter: brightness(1.06);
}
.chat-item:active{transform: translateY(0px) scale(.99)}
.chat-item.active{
  border-color:rgba(139,92,246,.35);
  background:rgba(139,92,246,.12);
}

.side-bottom{padding:14px;border-top:1px solid var(--border)}
.hint{margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.3}

.chat-area{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
  overflow:hidden;
  min-height:72vh;
  display:flex;
  flex-direction:column;
}

.chat-header{
  padding:12px 14px;
  border-bottom:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  background:rgba(0,0,0,.12);
}
.chat-title{display:flex;align-items:center;gap:10px}
.dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);
  box-shadow:var(--glow);
}
.title{font-weight:800}
.sub{color:var(--muted);font-size:12px;margin-top:2px}

.chat{
  flex:1;
  overflow:auto;
  padding:14px;

  /* ✅ CHAT LIMPIO: oscuro real (sin “tinte” morado detrás) */
  background: rgba(0,0,0,.22);
}

/* Messages */
.msg{display:flex;margin:10px 0}
.msg.user{justify-content:flex-end}
.msg.ai{justify-content:flex-start}

.bubble{
  max-width:78%;
  padding:11px 12px;
  border-radius:16px;
  line-height:1.35;
  white-space:pre-wrap;
  word-wrap:break-word;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
}
.msg.user .bubble{border-color:rgba(139,92,246,.25);background:rgba(139,92,246,.14)}
.msg.ai .bubble{border-color:rgba(56,189,248,.18);background:rgba(255,255,255,.06)}

.composer{
  display:flex;
  gap:10px;
  padding:12px;
  border-top:1px solid var(--border);
  background:rgba(0,0,0,.12);
}
textarea{
  width:100%;
  resize:none;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.18);
  color:var(--text);
  outline:none;
}
textarea:focus{border-color:rgba(139,92,246,.35)}

/* Modal */
.modal{
  position:fixed; inset:0;
  background:rgba(0,0,0,.6);
  display:flex; align-items:center; justify-content:center;
  padding:18px;
}
.modal-card{
  width:min(520px, 100%);
  background:#0d1024;
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
  box-shadow:var(--shadow);
  animation: popIn .14s ease;
}
@keyframes popIn{
  from{transform: translateY(8px) scale(.98); opacity:.85}
  to{transform: translateY(0px) scale(1); opacity:1}
}
.modal-head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.x{
  width:40px;height:40px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--text);
  cursor:pointer;
  transition: transform .12s ease, filter .12s ease, border-color .12s ease, background .12s ease;
}
.x:hover{transform: translateY(-1px); filter: brightness(1.12)}
.x:active{transform: translateY(0px) scale(.98)}
.x:focus-visible{outline:2px solid rgba(56,189,248,.35);outline-offset:2px}

.lab{display:block;margin-top:10px;margin-bottom:6px;color:var(--muted);font-size:13px}
input{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.22);
  color:var(--text);
  outline:none;
}
input:focus{border-color:rgba(56,189,248,.35)}
.row{display:flex;gap:10px;align-items:center;margin-top:12px;flex-wrap:wrap}
.err{color:#fca5a5;margin-top:10px;min-height:18px}

/* =========================
   LANDING (index)
========================= */
.nav{display:flex;gap:12px;align-items:center}
.nav-link{
  color:var(--muted);
  text-decoration:none;
  font-size:13px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid transparent;
}
.nav-link:hover{color:var(--text); border-color:rgba(255,255,255,.12); background:rgba(0,0,0,.12)}

.hero{
  margin-top:14px;
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:14px;
  align-items:stretch;

  /* ✅ “morado” solo en la parte superior / landing */
  background:
    radial-gradient(1200px 520px at 18% 0%, rgba(139,92,246,.18), transparent 60%),
    radial-gradient(1000px 520px at 90% 0%, rgba(56,189,248,.12), transparent 60%);
  border-radius:18px;
}

.badge{
  display:inline-flex;
  gap:8px;
  align-items:center;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.18);
  color:var(--muted);
  padding:8px 10px;
  border-radius:999px;
  font-size:12px;
}

.hero-title{
  margin:14px 0 8px;
  font-size:42px;
  line-height:1.05;
  letter-spacing:-.02em;
}
.grad{
  background: linear-gradient(135deg, rgba(139,92,246,1), rgba(56,189,248,1));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin:0;
  color:var(--muted);
  font-size:15px;
  line-height:1.5;
  max-width:60ch;
}

.hero-cta{display:flex;gap:10px;align-items:center;margin-top:14px;flex-wrap:wrap}

.hero-notes{
  margin-top:14px;
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap:10px;
}
.note{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
  padding:12px;
  border-radius:16px;
}
.note-title{font-weight:800;font-size:13px}
.note-text{color:var(--muted);font-size:12px;margin-top:6px;line-height:1.35}

.card{
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:14px;
  box-shadow:var(--shadow);
}
.glass{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(0,0,0,.12));
}
.card-head{display:flex;gap:10px;align-items:center}
.card-dot{
  width:10px;height:10px;border-radius:999px;
  background:var(--accent2);
  box-shadow: 0 0 0 6px rgba(56,189,248,.14);
}
.card-title{font-weight:900}
.card-sub{color:var(--muted);font-size:12px;margin-top:2px}

.demo{margin-top:12px;display:flex;flex-direction:column;gap:10px}
.demo-bubble{
  padding:10px 12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.14);
  max-width: 95%;
}
.demo-bubble.user{align-self:flex-end;border-color:rgba(139,92,246,.24);background:rgba(139,92,246,.12)}
.demo-bubble.ai{align-self:flex-start;border-color:rgba(56,189,248,.20)}

.card-foot{margin-top:12px}
.section{
  margin-top:18px;
  padding:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  border-radius:18px;
  box-shadow: var(--shadow);
}
.section-title{margin:0;font-size:20px}
.section-sub{margin:6px 0 0;color:var(--muted);font-size:13px}

.grid3{margin-top:14px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.grid2{margin-top:14px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid4{margin-top:14px;display:grid;grid-template-columns:repeat(4, 1fr);gap:12px}

.feature{
  padding:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
}
.ico{font-size:20px}
.feature-title{margin-top:8px;font-weight:900}
.feature-text{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.4}

.panel{
  padding:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
}
.panel.warn{border-color:rgba(239,68,68,.28); background:rgba(239,68,68,.08)}
.panel.soft{margin-top:12px;background:rgba(139,92,246,.08);border-color:rgba(139,92,246,.22)}

.list{margin:10px 0 0;padding-left:18px;color:var(--muted);line-height:1.6}

.plan{
  padding:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
}
.plan.best{
  border-color:rgba(139,92,246,.35);
  background:rgba(139,92,246,.10);
}
.plan-name{font-weight:900}
.plan-price{margin-top:6px;font-size:22px;font-weight:900}
.plan-desc{margin-top:6px;color:var(--muted);font-size:13px;margin-bottom:12px}

.faq{margin-top:12px;display:flex;flex-direction:column;gap:10px}
details{
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
  border-radius:16px;
  padding:12px;
}
summary{cursor:pointer;font-weight:800}
details p{margin:8px 0 0}

.footer{
  margin-top:18px;
  padding:14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.12);
  border-radius:18px;
  box-shadow: var(--shadow);
}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--text)}
.footer-title{font-weight:900}

@media (max-width: 980px){
  .hero{grid-template-columns:1fr}
  .hero-title{font-size:34px}
  .hero-notes{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
  .grid4{grid-template-columns:1fr 1fr}
  .nav{display:none}
}

@media (max-width: 900px){
  .layout{grid-template-columns:1fr}
  .sidebar{min-height:auto}
  .chat-area{min-height:70vh}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important; animation:none !important}
}

/* =========================
   PRO UPGRADES (Neura)
========================= */

/* 1) Halo suave (glow) del chat cuando está activo */
.chat-area{
  position:relative;
}
.chat-area::before{
  content:"";
  position:absolute;
  inset:-2px;
  border-radius:20px;
  pointer-events:none;
  opacity:0;
  transition: opacity .18s ease;
  background:
    radial-gradient(800px 260px at 20% 0%, rgba(139,92,246,.22), transparent 60%),
    radial-gradient(800px 260px at 90% 0%, rgba(56,189,248,.16), transparent 60%);
  filter: blur(10px);
}
.chat-area.is-active::before{
  opacity:1;
}
.chat-area.is-active{
  border-color: rgba(139,92,246,.28);
}

/* 2) Animación suave al aparecer un mensaje */
@keyframes fadeUp{
  from{opacity:0; transform: translateY(8px) scale(.99)}
  to{opacity:1; transform: translateY(0px) scale(1)}
}
.msg.pop-in .bubble{
  animation: fadeUp .18s ease both;
}

/* 3) Indicador de "pensando..." */
.typing{
  display:flex;
  align-items:center;
  gap:10px;
  margin:10px 0;
}
.typing .bubble{
  display:flex;
  align-items:center;
  gap:10px;
}
.dots{
  display:inline-flex;
  gap:6px;
}
.dots span{
  width:6px; height:6px;
  border-radius:999px;
  background: rgba(255,255,255,.55);
  opacity:.5;
  animation: blink 1s infinite ease-in-out;
}
.dots span:nth-child(2){animation-delay:.15s}
.dots span:nth-child(3){animation-delay:.30s}

@keyframes blink{
  0%, 80%, 100%{transform: translateY(0px); opacity:.35}
  40%{transform: translateY(-3px); opacity:.9}
}