/* ============================================================
   FADER LABS — Academia de DJs · Valladolid
   Diseño: "Cabina" — oscuro, señal VU (verde→ámbar→rojo),
   display Unbounded + cuerpo Space Grotesk.
   ============================================================ */

:root{
  --bg:        #0a0a0f;
  --bg-2:      #0e0e15;
  --panel:     #13131c;
  --panel-2:   #191926;
  --line:      rgba(255,255,255,.08);
  --line-2:    rgba(255,255,255,.14);
  --txt:       #f2f0eb;
  --muted:     #a3a1b0;
  --vu-green:  #2fd98c;
  --vu-amber:  #ffb020;
  --vu-red:    #ff4757;
  --accent:    #ffb020;
  --vu-grad:   linear-gradient(90deg,var(--vu-green),var(--vu-amber),var(--vu-red));
  --radius:    18px;
  --radius-s:  12px;
  --shadow:    0 20px 60px rgba(0,0,0,.45);
  --font-display:'Unbounded',system-ui,sans-serif;
  --font-body:'Space Grotesk',system-ui,sans-serif;
  --header-h:76px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--vu-amber);color:#0a0a0f}

.container{width:min(1160px,92%);margin-inline:auto}

/* ---------- Tipografía ---------- */
h1,h2,h3,.display{font-family:var(--font-display);text-transform:uppercase;line-height:1.08;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,6vw,4.4rem);font-weight:900}
h2{font-size:clamp(1.5rem,3.6vw,2.6rem);font-weight:800}
h3{font-size:clamp(1.02rem,2vw,1.3rem);font-weight:700}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--muted);max-width:62ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-body);font-weight:700;font-size:.78rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--vu-amber);
}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--vu-grad);border-radius:2px}
.grad-text{background:var(--vu-grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(10,10,15,.55);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s;
}
.site-header.scrolled{background:rgba(10,10,15,.88);border-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo img{height:28px;width:auto}
.nav{display:flex;align-items:center;gap:2rem}
.nav a{
  font-weight:700;font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);padding:.4rem 0;position:relative;transition:color .25s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--vu-grad);transition:right .3s ease;
}
.nav a:hover,.nav a.active{color:var(--txt)}
.nav a:hover::after,.nav a.active::after{right:0}
.nav .btn{padding:.65rem 1.2rem}
.nav .btn::after{display:none}

.nav-toggle{
  display:none;background:none;border:1px solid var(--line-2);border-radius:10px;
  width:46px;height:42px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--txt);transition:transform .3s,opacity .3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--font-body);font-weight:700;font-size:.9rem;
  letter-spacing:.1em;text-transform:uppercase;
  padding:.95rem 1.8rem;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s,color .2s,border-color .2s;
  white-space:nowrap;
}
.btn-primary{background:var(--vu-amber);color:#0a0a0f;box-shadow:0 8px 30px rgba(255,176,32,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(255,176,32,.4)}
.btn-ghost{border-color:var(--line-2);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--vu-amber);color:var(--vu-amber);transform:translateY(-2px)}
.btn-wa{background:#25d366;color:#062b16;box-shadow:0 8px 30px rgba(37,211,102,.25)}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(37,211,102,.38)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--header-h) + 3rem) 0 4.5rem;overflow:hidden;
  background:
    radial-gradient(60% 50% at 75% 15%,rgba(255,176,32,.10),transparent 60%),
    radial-gradient(50% 45% at 15% 85%,rgba(47,217,140,.07),transparent 60%),
    var(--bg);
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero .eyebrow{margin-bottom:1.2rem}
.hero h1{margin-bottom:1.4rem}
.hero .lead{margin-bottom:2.4rem}
.hero-ctas{display:flex;flex-wrap:wrap;gap:1rem}
.hero-note{margin-top:1.4rem;font-size:.88rem;color:var(--muted)}
.hero-note strong{color:var(--vu-amber)}

/* Ecualizador de fondo (firma visual) */
.eq{
  position:absolute;inset:auto 0 0 0;height:38vh;min-height:220px;z-index:1;
  display:flex;align-items:flex-end;gap:6px;padding:0 2vw;
  mask-image:linear-gradient(to top,rgba(0,0,0,.9),transparent);
  -webkit-mask-image:linear-gradient(to top,rgba(0,0,0,.9),transparent);
  pointer-events:none;opacity:.5;
}
.eq span{
  flex:1;border-radius:4px 4px 0 0;
  background:linear-gradient(to top,var(--vu-green) 0%,var(--vu-green) 55%,var(--vu-amber) 78%,var(--vu-red) 100%);
  animation:eq-bounce 1.6s ease-in-out infinite alternate;
  transform-origin:bottom;height:100%;
}
@keyframes eq-bounce{from{transform:scaleY(var(--min,.15))}to{transform:scaleY(var(--max,.85))}}

/* Cinta VU divisoria */
.vu-strip{height:4px;background:var(--vu-grad);opacity:.9}

/* ---------- Secciones ---------- */
.section{padding:6rem 0}
.section-alt{background:var(--bg-2)}
.section-head{margin-bottom:3rem;display:flex;flex-direction:column;gap:.9rem}
.section-head .lead{max-width:70ch}

/* ---------- Cards "¿En qué punto estás?" ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.level-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.9rem 1.6rem;display:flex;flex-direction:column;gap:1rem;
  position:relative;overflow:hidden;
  transition:transform .3s ease,border-color .3s,box-shadow .3s;
}
.level-card::before{
  content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--vu-grad);
  opacity:0;transition:opacity .3s;
}
.level-card:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:var(--shadow)}
.level-card:hover::before{opacity:1}
.level-card .quote{font-style:italic;color:var(--vu-amber);font-weight:600;font-size:.95rem}
.level-card h3{font-size:1.05rem}
.level-card p{color:var(--muted);font-size:.95rem;flex:1}
.level-card .btn{align-self:flex-start;padding:.7rem 1.3rem;font-size:.78rem}

/* Fader decorativo en cards */
.fader{
  width:100%;height:6px;border-radius:3px;background:var(--panel-2);position:relative;margin-top:.2rem;
}
.fader::after{
  content:"";position:absolute;top:50%;translate:0 -50%;left:var(--pos,20%);
  width:26px;height:16px;border-radius:4px;
  background:linear-gradient(180deg,#3a3a4a,#22222e);
  border:1px solid var(--line-2);box-shadow:0 2px 6px rgba(0,0,0,.5);
  transition:left .45s cubic-bezier(.2,.8,.2,1);
}
.level-card:hover .fader::after{left:calc(var(--pos-hover,80%) - 26px)}

/* ---------- Servicios (cursos) ---------- */
.grid-services{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.service-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem 1.5rem;display:flex;flex-direction:column;gap:.7rem;
  transition:transform .3s,border-color .3s,box-shadow .3s;position:relative;
}
.service-card:hover{transform:translateY(-5px);border-color:rgba(255,176,32,.45);box-shadow:var(--shadow)}
.service-card .tag{
  align-self:flex-start;font-size:.68rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--vu-green);background:rgba(47,217,140,.1);border:1px solid rgba(47,217,140,.3);
  padding:.28rem .7rem;border-radius:999px;
}
.service-card .tag.amber{color:var(--vu-amber);background:rgba(255,176,32,.1);border-color:rgba(255,176,32,.3)}
.service-card .tag.red{color:var(--vu-red);background:rgba(255,71,87,.1);border-color:rgba(255,71,87,.3)}
.service-card h3{font-size:1rem}
.service-card p{color:var(--muted);font-size:.94rem;flex:1}
.service-card .link{
  font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--vu-amber);
  display:inline-flex;align-items:center;gap:.4rem;
}
.service-card .link::after{content:"→";transition:transform .25s}
.service-card:hover .link::after{transform:translateX(5px)}

/* ---------- Split (texto + imagen) ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center}
.split.reverse{grid-template-columns:.95fr 1.05fr}
.split.reverse .split-media{order:-1}
.split-media{position:relative}
.split-media img{
  border-radius:var(--radius);width:100%;height:auto;object-fit:cover;
  border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.split-media::after{
  content:"";position:absolute;inset:14px -14px -14px 14px;z-index:-1;
  border-radius:var(--radius);border:1px solid rgba(255,176,32,.25);
}
.split-body{display:flex;flex-direction:column;gap:1.1rem}
.split-body p{color:var(--muted)}
.split-body p strong{color:var(--txt)}
.split-body .btn{align-self:flex-start;margin-top:.6rem}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin:3rem 0}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem 1.3rem;text-align:center;
}
.stat .num{font-family:var(--font-display);font-weight:900;font-size:clamp(1.6rem,3vw,2.3rem);background:var(--vu-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .label{font-size:.85rem;color:var(--muted);margin-top:.4rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600}

/* ---------- Checklist ---------- */
.checklist{display:flex;flex-direction:column;gap:.8rem}
.checklist li{
  display:flex;gap:.8rem;align-items:flex-start;color:var(--txt);font-weight:500;
}
.checklist li::before{
  content:"✓";flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(47,217,140,.12);color:var(--vu-green);font-weight:800;font-size:.85rem;
  border:1px solid rgba(47,217,140,.35);margin-top:.1rem;
}

/* ---------- Precio ---------- */
.price-box{
  background:var(--panel);border:1px solid rgba(255,176,32,.4);border-radius:var(--radius);
  padding:2.2rem;text-align:center;box-shadow:0 0 60px rgba(255,176,32,.08);
  display:flex;flex-direction:column;gap:.6rem;align-items:center;
}
.price-box .price{font-family:var(--font-display);font-weight:900;font-size:clamp(2.2rem,5vw,3.4rem)}
.price-box .price small{font-size:.4em;color:var(--muted);font-weight:700}
.price-box .btn{margin-top:1rem}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:.8rem;max-width:820px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-s);
  overflow:hidden;transition:border-color .3s;
}
.faq-item[open]{border-color:rgba(255,176,32,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:1.15rem 1.4rem;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  font-weight:700;font-size:1rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--font-display);font-size:1.2rem;color:var(--vu-amber);
  transition:transform .3s;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 1.4rem 1.3rem;color:var(--muted)}

/* ---------- CTA banda ---------- */
.cta-band{
  position:relative;text-align:center;padding:5.5rem 0;overflow:hidden;
  background:
    radial-gradient(50% 80% at 50% 0%,rgba(255,176,32,.12),transparent 70%),
    var(--bg-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band h2{margin-bottom:1rem}
.cta-band p{color:var(--muted);max-width:56ch;margin:0 auto 2rem}
.cta-band .hero-ctas{justify-content:center}

/* ---------- Info / ubicación ---------- */
.info-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:2.5rem;align-items:stretch}
.info-cards{display:flex;flex-direction:column;gap:1.2rem}
.info-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.6rem;display:flex;flex-direction:column;gap:.5rem;
}
.info-card h3{font-size:.95rem;color:var(--vu-amber)}
.info-card p{color:var(--muted)}
.info-card a{color:var(--txt);font-weight:600;transition:color .25s}
.info-card a:hover{color:var(--vu-amber)}
.map-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-2);min-height:340px;box-shadow:var(--shadow)}
.map-wrap iframe{width:100%;height:100%;min-height:340px;border:0;filter:grayscale(.4) contrast(1.05)}

/* ---------- Curso detalle (páginas de cursos) ---------- */
.page-hero{
  padding:calc(var(--header-h) + 5rem) 0 3.5rem;position:relative;overflow:hidden;
  background:
    radial-gradient(55% 60% at 80% 0%,rgba(255,176,32,.1),transparent 60%),
    var(--bg);
}
.page-hero h1{margin:.9rem 0 1rem}

.course{padding:4.5rem 0;border-top:1px solid var(--line)}
.course-head{margin-bottom:2.2rem;display:flex;flex-direction:column;gap:.8rem}
.course-head .hook{font-size:clamp(1.05rem,1.8vw,1.3rem);color:var(--txt);font-weight:600;max-width:60ch}
.course-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:start}
.course-blocks{display:flex;flex-direction:column;gap:1.1rem}
.course-block{
  background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--vu-amber);
  border-radius:var(--radius-s);padding:1.3rem 1.5rem;
}
.course-block h3{font-size:.82rem;letter-spacing:.14em;color:var(--vu-amber);margin-bottom:.5rem}
.course-block p,.course-block li{color:var(--muted)}
.course-block ul{display:flex;flex-direction:column;gap:.4rem;margin-top:.2rem}
.course-block li{display:flex;gap:.6rem}
.course-block li::before{content:"▸";color:var(--vu-green);font-weight:800}
.course-media{position:sticky;top:calc(var(--header-h) + 1.5rem);display:flex;flex-direction:column;gap:1.3rem}
.course-media img{border-radius:var(--radius);border:1px solid var(--line-2);box-shadow:var(--shadow);width:100%;object-fit:cover}
.course-media .btn{align-self:stretch}
.course-note{
  background:rgba(255,176,32,.07);border:1px dashed rgba(255,176,32,.4);border-radius:var(--radius-s);
  padding:1rem 1.2rem;color:var(--muted);font-size:.92rem;
}
.course-note img{border:0;box-shadow:none;max-width:180px;margin-top:.6rem}

/* ---------- Formulario ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.8rem;align-items:start}
.contact-form{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:2rem;display:flex;flex-direction:column;gap:1.1rem;
}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.field input,.field textarea{
  background:var(--bg);border:1px solid var(--line-2);border-radius:10px;
  padding:.85rem 1rem;color:var(--txt);font-family:var(--font-body);font-size:1rem;
  transition:border-color .25s,box-shadow .25s;resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--vu-amber);box-shadow:0 0 0 3px rgba(255,176,32,.15)}
.form-hint{font-size:.85rem;color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{background:#07070b;border-top:1px solid var(--line);padding:3.5rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:2.5rem;margin-bottom:2.5rem}
.footer-grid img{height:30px;width:auto;margin-bottom:1rem}
.footer-grid p{color:var(--muted);font-size:.92rem}
.footer-grid h4{font-family:var(--font-display);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--vu-amber);margin-bottom:1rem}
.footer-grid ul{display:flex;flex-direction:column;gap:.55rem}
.footer-grid ul a{color:var(--muted);font-size:.92rem;transition:color .25s}
.footer-grid ul a:hover{color:var(--txt)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:1.5rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  color:var(--muted);font-size:.82rem;
}

/* ---------- Páginas legales ---------- */
.legal{max-width:800px;display:flex;flex-direction:column;gap:1.1rem;padding-bottom:2rem}
.legal h2{font-size:1.15rem;margin-top:1.6rem;color:var(--vu-amber)}
.legal p,.legal li{color:var(--muted)}
.legal strong{color:var(--txt)}
.legal ul{display:flex;flex-direction:column;gap:.5rem;padding-left:0}
.legal li{display:flex;gap:.6rem}
.legal li::before{content:"—";color:var(--vu-amber);flex:0 0 auto}
.legal a{color:var(--vu-amber);text-decoration:underline;text-underline-offset:3px}
.legal .updated{font-size:.85rem;color:var(--muted);font-style:italic}

/* ---------- Asistente de dudas (chat flotante) ---------- */
.fl-chat-btn{
  position:fixed;right:20px;bottom:20px;z-index:200;
  width:60px;height:60px;border-radius:50%;border:none;cursor:pointer;
  background:var(--vu-amber);color:#0a0a0f;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 34px rgba(255,176,32,.45);
  transition:transform .25s ease,box-shadow .25s ease;
}
.fl-chat-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 14px 44px rgba(255,176,32,.6)}
.fl-chat-btn svg{width:28px;height:28px}
.fl-chat-btn .close-ic{display:none}
.fl-chat-open .fl-chat-btn .chat-ic{display:none}
.fl-chat-open .fl-chat-btn .close-ic{display:block}

.fl-chat{
  position:fixed;right:20px;bottom:92px;z-index:200;
  width:min(380px,calc(100vw - 32px));height:min(540px,calc(100svh - 130px));
  background:var(--panel);border:1px solid var(--line-2);border-radius:var(--radius);
  box-shadow:0 30px 80px rgba(0,0,0,.6);
  display:none;flex-direction:column;overflow:hidden;
}
.fl-chat-open .fl-chat{display:flex}

.fl-chat-head{
  padding:1rem 1.2rem;background:var(--panel-2);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:.8rem;
}
.fl-chat-head::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--vu-green);box-shadow:0 0 10px var(--vu-green)}
.fl-chat-head .t{font-family:var(--font-display);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}
.fl-chat-head .s{font-size:.75rem;color:var(--muted);margin-left:auto}

.fl-chat-msgs{flex:1;overflow-y:auto;padding:1.1rem;display:flex;flex-direction:column;gap:.7rem}
.fl-msg{max-width:86%;padding:.7rem .95rem;border-radius:14px;font-size:.92rem;line-height:1.5;white-space:pre-line}
.fl-msg.bot{background:var(--panel-2);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.fl-msg.user{background:var(--vu-amber);color:#0a0a0f;align-self:flex-end;border-bottom-right-radius:4px;font-weight:500}
.fl-msg.bot a{color:var(--vu-amber);text-decoration:underline;text-underline-offset:2px}
.fl-msg .fl-wa{
  display:inline-flex;align-items:center;gap:.4rem;margin-top:.6rem;
  background:#25d366;color:#062b16 !important;text-decoration:none !important;
  font-weight:700;font-size:.82rem;padding:.5rem .95rem;border-radius:999px;
}

.fl-chips{display:flex;flex-wrap:wrap;gap:.45rem;padding:.6rem 1.1rem;border-top:1px solid var(--line)}
.fl-chip{
  background:transparent;border:1px solid var(--line-2);color:var(--muted);
  font-family:var(--font-body);font-size:.76rem;font-weight:600;
  padding:.4rem .8rem;border-radius:999px;cursor:pointer;transition:all .2s;
}
.fl-chip:hover{border-color:var(--vu-amber);color:var(--vu-amber)}

.fl-chat-input{display:flex;gap:.5rem;padding:.8rem 1.1rem;border-top:1px solid var(--line);background:var(--panel-2)}
.fl-chat-input input{
  flex:1;background:var(--bg);border:1px solid var(--line-2);border-radius:999px;
  padding:.65rem 1rem;color:var(--txt);font-family:var(--font-body);font-size:.92rem;
}
.fl-chat-input input:focus{outline:none;border-color:var(--vu-amber)}
.fl-chat-input button{
  background:var(--vu-amber);border:none;border-radius:50%;width:42px;height:42px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;color:#0a0a0f;
  transition:transform .2s;flex:0 0 auto;
}
.fl-chat-input button:hover{transform:scale(1.08)}

@media (max-width:760px){
  .fl-chat{
    right:0;left:0;bottom:0;width:100%;
    height:min(78dvh,600px);
    max-height:calc(100dvh - 70px);
    border-radius:18px 18px 0 0;
    border-left:0;border-right:0;border-bottom:0;
    padding-bottom:env(safe-area-inset-bottom,0);
  }
  .fl-chat-btn{right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0));width:54px;height:54px}
  .fl-chat-open .fl-chat-btn{display:none}
  .fl-chat-input input{font-size:16px}
  .fl-msg{max-width:92%}
  .fl-chips{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .fl-chips::-webkit-scrollbar{display:none}
  .fl-chip{flex:0 0 auto}
}

/* Botón cerrar dentro de la cabecera del chat */
.fl-chat-close{
  margin-left:.6rem;background:none;border:none;color:var(--muted);cursor:pointer;
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  transition:color .2s,background .2s;flex:0 0 auto;
}
.fl-chat-close:hover{color:var(--txt);background:rgba(255,255,255,.06)}
.fl-chat-close svg{width:18px;height:18px}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.08s}
.reveal-delay-2{transition-delay:.16s}
.reveal-delay-3{transition-delay:.24s}

/* Fallback si JS falla: main.js añade .js-on al html */
html:not(.js-on) .reveal{opacity:1;transform:none}

/* ---------- Reduced motion: solo efectos intrusivos ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width:1020px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-services{grid-template-columns:repeat(2,1fr)}
  .split,.split.reverse{grid-template-columns:1fr;gap:2.2rem}
  .split.reverse .split-media{order:0}
  .course-grid{grid-template-columns:1fr}
  .course-media{position:static}
  .form-grid{grid-template-columns:1fr}
  .info-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(10,10,15,.98);border-bottom:1px solid var(--line);
    padding:.6rem 4%;display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:.95rem .4rem;border-bottom:1px solid var(--line)}
  .nav a:last-child{border-bottom:0}
  .nav .btn{margin:.8rem 0}
  .nav-toggle{display:flex}
  .logo img{height:20px;width:auto}
  .grid-4,.grid-services{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .section{padding:4rem 0}
  .footer-grid{grid-template-columns:1fr}
  .hero-ctas .btn{width:100%}
}