/* ============================================================
   ZAVEBO AI — Sistema de diseño
   ============================================================ */
:root{
  --bg:#08080f;
  --bg-2:#0d0d18;
  --panel:#12121f;
  --panel-2:#171728;
  --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.14);
  --txt:#ececf5;
  --txt-dim:#a2a2b8;
  --txt-mute:#6f6f88;
  --blue:#6d8bff;
  --violet:#9a7cff;
  --purple:#b07cff;
  --pink:#ff7cd4;
  --accent:#8b7cff;
  --grad:linear-gradient(135deg,#6d8bff 0%,#9a7cff 45%,#ff7cd4 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,139,255,.18),rgba(255,124,212,.18));
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px -20px rgba(90,60,200,.5);
  --ok:#3ddc97; --warn:#ffcf5c; --err:#ff6b6b;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --code-bg:#0a0a12; --scroll:#22222f; --hover:rgba(255,255,255,.06);
}
/* ---- Tema claro ---- */
html[data-theme="light"]{
  --bg:#f5f6fb; --bg-2:#ffffff; --panel:#ffffff; --panel-2:#eef0f7;
  --border:rgba(20,20,40,.10); --border-2:rgba(20,20,40,.16);
  --txt:#16161f; --txt-dim:#4c4c60; --txt-mute:#8688a0;
  --shadow:0 20px 50px -22px rgba(120,90,220,.35);
  --code-bg:#1b1b28; --scroll:#c9cbdb; --hover:rgba(20,20,40,.055);
}
html[data-theme="light"] .aura::before{opacity:.28}
html[data-theme="light"] .aura::after{opacity:.2}
html,body{transition:background .25s ease,color .25s ease}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  line-height:1.55;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
}
/* ANTI-COPIA TOTAL: nada seleccionable, sin menú de long-press (Android "Preguntar a Google" / iOS callout) */
*,*::before,*::after{
  -webkit-user-select:none !important;-moz-user-select:none !important;-ms-user-select:none !important;user-select:none !important;
  -webkit-touch-callout:none !important;-webkit-tap-highlight-color:transparent !important;
}
/* Única excepción: los campos donde se escribe (para poder teclear y editar) */
input,textarea,[contenteditable="true"]{
  -webkit-user-select:text !important;-moz-user-select:text !important;-ms-user-select:text !important;user-select:text !important;
  -webkit-touch-callout:default !important;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;
  -webkit-user-drag:none;-khtml-user-drag:none;-moz-user-drag:none;-o-user-drag:none;user-drag:none;
  -webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;
  -webkit-touch-callout:none;pointer-events:auto}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:rgba(154,124,255,.35)}

/* Fondo con aura de color */
.aura{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.aura::before,.aura::after{content:"";position:absolute;border-radius:50%;filter:blur(120px);opacity:.5}
.aura::before{width:52vw;height:52vw;background:radial-gradient(circle,#5a4bff,transparent 60%);top:-15vw;left:-10vw}
.aura::after{width:46vw;height:46vw;background:radial-gradient(circle,#ff5ec4,transparent 60%);bottom:-18vw;right:-12vw;opacity:.35}

/* ---------- Utilidades ---------- */
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.center{text-align:center}
.muted{color:var(--txt-dim)}
.hidden{display:none!important}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:.72em 1.35em;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;white-space:nowrap;
  background:var(--panel-2);color:var(--txt);border-color:var(--border-2);
}
.btn:hover{transform:translateY(-1px);border-color:var(--border-2);background:#1e1e30}
.btn-primary{background:var(--grad);color:#fff;border:none;box-shadow:0 10px 30px -10px rgba(139,124,255,.7)}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 14px 38px -10px rgba(139,124,255,.85)}
.btn-ghost{background:transparent;border-color:var(--border)}
.btn-ghost:hover{background:rgba(255,255,255,.04)}
.btn-lg{padding:.95em 1.9em;font-size:1.02rem}
.btn-block{display:flex;width:100%}
.btn-sm{padding:.5em .9em;font-size:.85rem}
.btn svg{width:1.15em;height:1.15em}

/* ---------- Header ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(8,8,15,.72);border-bottom:1px solid var(--border)}
.nav-in{display:flex;align-items:center;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.18rem;letter-spacing:-.01em}
.brand img{width:34px;height:34px;border-radius:9px;box-shadow:0 4px 16px rgba(139,124,255,.5)}
.brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a.link{padding:.5em .85em;border-radius:10px;color:var(--txt-dim);font-weight:500;font-size:.94rem}
.nav-links a.link:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.avatar{width:38px;height:38px;border-radius:50%;object-fit:cover;border:2px solid var(--border-2);background:var(--panel-2)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--txt);margin:4px 0;border-radius:2px;transition:.2s}

/* ---------- Landing ---------- */
.hero{padding:clamp(60px,10vw,120px) 0 70px;text-align:center;position:relative}
.hero .badge-pill{display:inline-flex;align-items:center;gap:8px;padding:.45em 1em;border-radius:999px;
  border:1px solid var(--border-2);background:var(--grad-soft);font-size:.85rem;color:var(--txt-dim);margin-bottom:26px}
.hero .badge-pill b{color:var(--txt)}
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem);line-height:1.04;font-weight:800;letter-spacing:-.03em;margin-bottom:22px}
.hero p.sub{font-size:clamp(1.05rem,2.2vw,1.32rem);color:var(--txt-dim);max-width:640px;margin:0 auto 38px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-logo{width:min(230px,52vw);margin:0 auto 30px;filter:drop-shadow(0 30px 60px rgba(139,124,255,.45));animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

.trust{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:44px;color:var(--txt-mute);font-size:.9rem}
.trust span{display:flex;align-items:center;gap:7px}
.trust svg{width:16px;height:16px;color:var(--violet)}

/* Secciones */
.section{padding:70px 0}
.section-head{text-align:center;max-width:620px;margin:0 auto 48px}
.section-head h2{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.section-head p{color:var(--txt-dim);font-size:1.08rem}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.8rem;font-weight:700;color:var(--violet);margin-bottom:12px}

/* Grid de features */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--border);
  border-radius:var(--radius);padding:26px;transition:.2s}
.card:hover{border-color:var(--border-2);transform:translateY(-3px)}
.card .ico{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:var(--grad-soft);border:1px solid var(--border-2)}
.card .ico svg{width:24px;height:24px;color:var(--violet)}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.card p{color:var(--txt-dim);font-size:.96rem}

/* Modelos showcase */
.model-card{position:relative;overflow:hidden}
.model-card .badge{position:absolute;top:18px;right:18px;font-size:.72rem;font-weight:700;padding:.3em .7em;
  border-radius:999px;background:rgba(255,255,255,.07);border:1px solid var(--border-2);color:var(--txt-dim)}
.model-card .dot{width:40px;height:40px;border-radius:12px;margin-bottom:16px}

/* ---------- Precios ---------- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch}
.plan{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--border);
  border-radius:var(--radius);padding:28px 24px;display:flex;flex-direction:column;position:relative}
.plan.popular{border-color:transparent;background:
  linear-gradient(var(--panel),var(--panel)) padding-box,
  var(--grad) border-box;box-shadow:var(--shadow)}
.plan .tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--grad);
  color:#fff;font-size:.72rem;font-weight:700;padding:.3em .9em;border-radius:999px}
.plan h3{font-size:1.3rem;font-weight:800;margin-bottom:4px}
.plan .ptag{color:var(--txt-mute);font-size:.88rem;margin-bottom:18px;min-height:2.6em}
.plan .price{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;line-height:1}
.plan .price small{font-size:.9rem;color:var(--txt-mute);font-weight:500}
.plan ul{list-style:none;margin:22px 0;display:flex;flex-direction:column;gap:12px;flex:1}
.plan li{display:flex;gap:10px;font-size:.93rem;color:var(--txt-dim)}
.plan li svg{width:18px;height:18px;color:var(--violet);flex-shrink:0;margin-top:2px}

/* ---------- Auth ---------- */
.auth-wrap{min-height:calc(100vh - 66px);display:grid;place-items:center;padding:40px 20px}
.auth-card{width:100%;max-width:430px;background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--border);border-radius:24px;padding:40px 34px;box-shadow:var(--shadow)}
.auth-card .logo{width:56px;margin:0 auto 18px;border-radius:14px}
.auth-card h1{font-size:1.6rem;font-weight:800;text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--txt-dim);margin-bottom:26px;font-size:.95rem}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;color:var(--txt-dim);margin-bottom:7px;font-weight:500}
.input{width:100%;padding:.85em 1em;border-radius:12px;background:var(--bg);border:1px solid var(--border-2);
  color:var(--txt);transition:.15s;font-size:.98rem}
.input:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(154,124,255,.18)}
.divider{display:flex;align-items:center;gap:14px;margin:22px 0;color:var(--txt-mute);font-size:.85rem}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}
.google-btn{display:flex;align-items:center;justify-content:center;gap:11px;width:100%;padding:.85em;
  border-radius:12px;background:#fff;color:#1a1a1a;font-weight:600;border:none;cursor:pointer;transition:.15s}
.google-btn:hover{filter:brightness(.96)}
.google-btn svg{width:20px;height:20px}
.auth-alt{text-align:center;margin-top:22px;color:var(--txt-dim);font-size:.92rem}
.auth-alt a{color:var(--violet);font-weight:600}
.alert{padding:.85em 1em;border-radius:12px;font-size:.9rem;margin-bottom:18px;border:1px solid}
.alert-err{background:rgba(255,107,107,.1);border-color:rgba(255,107,107,.3);color:#ffb0b0}
.alert-ok{background:rgba(61,220,151,.1);border-color:rgba(61,220,151,.3);color:#9ff0cf}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--border);padding:50px 0 40px;margin-top:40px;color:var(--txt-mute)}
.footer-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer .brand{font-size:1.05rem}
.footer-links{display:flex;gap:26px;flex-wrap:wrap}
.footer-links a{color:var(--txt-dim);font-size:.92rem}
.footer-links a:hover{color:var(--txt)}
.footer .copy{font-size:.85rem;margin-top:22px;width:100%}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .nav-toggle{display:block}
  .nav-links{position:fixed;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(10,10,18,.97);backdrop-filter:blur(14px);padding:14px;gap:4px;margin-left:0;
    border-bottom:1px solid var(--border);transform:translateY(-140%);transition:.28s;z-index:49}
  .nav-links.open{transform:translateY(0)}
  .nav-links a.link,.nav-links .btn{width:100%;justify-content:flex-start}
  .grid-3,.grid-4,.grid-2,.plans{grid-template-columns:1fr}
  .footer-in{flex-direction:column}
}