/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* ── Tema oscuro (por defecto) ── */
:root{
  --bg:#0b0f19;
  --bg-alt:#0e1526;
  --bg-card:#141929;
  --bg-card-hover:#1a2035;
  --bg-nav:rgba(11,15,25,.92);
  --bg-nav-mobile:rgba(11,15,25,.97);
  --accent:#2d8cf0;
  --accent-light:#5ba8f5;
  --accent-dark:#1a6dd1;
  --text:#e4e8f1;
  --text-heading:#ffffff;
  --text-muted:#8a94a8;
  --border:#243049;
  --shadow-btn:rgba(45,140,240,.35);
  --shadow-btn-hover:rgba(45,140,240,.5);
  --radius:14px;
  --radius-sm:8px;
  --max-w:1100px;
  --nav-h:64px;
  --green:#34c759;
  --red:#ff3b30;
  --orange:#ff9500;
}

/* ── Tema claro ── */
[data-theme="light"]{
  --bg:#f5f7fa;
  --bg-alt:#edf0f5;
  --bg-card:#ffffff;
  --bg-card-hover:#f0f3f8;
  --bg-nav:rgba(255,255,255,.92);
  --bg-nav-mobile:rgba(255,255,255,.97);
  --accent:#1a6dd1;
  --accent-light:#1a6dd1;
  --accent-dark:#145aaa;
  --text:#2c3e50;
  --text-heading:#1a202c;
  --text-muted:#5a6a7e;
  --border:#d4dae3;
  --shadow-btn:rgba(26,109,209,.25);
  --shadow-btn-hover:rgba(26,109,209,.4);
}

html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
a{color:var(--accent-light);text-decoration:none;transition:color .2s}
a:hover{color:var(--text-heading)}
img{max-width:100%;display:block}

/* ===== Navbar ===== */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);background:var(--bg-nav);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:100;display:flex;align-items:center;transition:background .3s,border-color .3s}
.nav__inner{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.nav__logo{font-size:1.25rem;font-weight:700;color:var(--text-heading);letter-spacing:-.02em;display:flex;align-items:center;gap:0}
.nav__logo-img{width:32px;height:32px;border-radius:50%;margin-right:8px}
.nav__logo span{color:var(--accent)}
.nav__right{display:flex;align-items:center;gap:20px}
.nav__links{display:flex;gap:28px;list-style:none}
.nav__links a{color:var(--text-muted);font-size:.9rem;font-weight:500;transition:color .2s}
.nav__links a:hover,.nav__links a.active{color:var(--text-heading)}

/* Botones de toolbar (idioma + tema) */
.toolbar-btn{background:none;border:1px solid var(--border);color:var(--text-muted);border-radius:6px;padding:5px 10px;font-size:.82rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:5px;transition:border-color .2s,color .2s,background .2s;font-family:inherit}
.toolbar-btn:hover{border-color:var(--accent);color:var(--text-heading)}
.toolbar-btn svg{width:16px;height:16px;fill:currentColor}
.nav__toolbar{display:flex;gap:8px;align-items:center}

/* Hamburger */
.nav__hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.nav__hamburger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,background .3s}

/* ===== Hero ===== */
.hero{padding:calc(var(--nav-h) + 60px) 24px 60px;text-align:center;background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg) 100%)}
.hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;line-height:1.2;margin-bottom:16px;color:var(--text-heading)}
.hero h1 span{color:var(--accent)}
.hero .subtitle{font-size:1.15rem;color:var(--text-muted);max-width:640px;margin:0 auto 32px}
.hero .badges{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:20px;font-size:.82rem;font-weight:600;border:1px solid var(--border);background:var(--bg-card);transition:background .3s,border-color .3s}
.badge--green{border-color:var(--green);color:var(--green)}
.badge--blue{border-color:var(--accent);color:var(--accent)}
.badge--orange{border-color:var(--orange);color:var(--orange)}

/* ===== Carousel ===== */
.carousel{position:relative;max-width:var(--max-w);margin:-20px auto 0;padding:0 60px;overflow:hidden;user-select:none}
.carousel__track{display:flex;transition:transform .45s cubic-bezier(.25,.8,.25,1);will-change:transform;gap:20px;padding:16px 0}
.carousel__slide{flex:0 0 auto;width:220px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:transform .3s,opacity .3s}
.carousel__slide img{width:100%;height:auto;display:block}
.carousel__slide:hover{transform:scale(1.03)}
.carousel__arrow{position:absolute;top:50%;transform:translateY(-60%);z-index:10;width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--bg-card);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s,color .2s}
.carousel__arrow:hover{border-color:var(--accent);color:var(--text-heading);background:var(--bg-card-hover)}
.carousel__arrow svg{fill:currentColor}
.carousel__arrow--left{left:8px}
.carousel__arrow--right{right:8px}
.carousel__dots{display:flex;justify-content:center;gap:8px;margin-top:12px;padding-bottom:8px}
.carousel__dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--border);background:transparent;cursor:pointer;transition:background .2s,border-color .2s;padding:0}
.carousel__dot.active{background:var(--accent);border-color:var(--accent)}

/* ===== CTA button ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:transform .15s,box-shadow .2s}
.btn--primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 4px 24px var(--shadow-btn)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 6px 32px var(--shadow-btn-hover);color:#fff}
.btn--outline{background:transparent;color:var(--accent-light);border:2px solid var(--accent)}
.btn--outline:hover{background:var(--accent);color:#fff}
.btn--sm{padding:10px 24px;font-size:.9rem}

/* ===== Section ===== */
.section{padding:80px 24px;max-width:var(--max-w);margin:0 auto}
.section__title{font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:700;margin-bottom:12px;text-align:center;color:var(--text-heading)}
.section__subtitle{color:var(--text-muted);text-align:center;max-width:600px;margin:0 auto 48px;font-size:1.05rem}

/* ===== Features Grid ===== */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 20px;transition:border-color .25s,transform .25s,background .3s}
.feature:hover{border-color:var(--accent);transform:translateY(-4px)}
.feature__header{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.feature__icon{font-size:1.4rem}
.feature__title{font-size:1.15rem;font-weight:700;color:var(--text-heading)}
.feature__desc{color:var(--text-muted);font-size:.95rem;line-height:1.6}


/* ===== Banner panorámico ===== */
.panoramic{margin:0 auto;max-width:var(--max-w);padding:0 24px}
.panoramic img{width:100%;border-radius:var(--radius);border:1px solid var(--border)}

/* ===== Privacy list ===== */
.privacy-list{list-style:none;max-width:750px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.privacy-list li{display:flex;align-items:flex-start;gap:14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px 24px;transition:background .3s,border-color .3s}
.privacy-list li .icon{font-size:1.5rem;flex-shrink:0}
.privacy-list li strong{display:block;margin-bottom:2px;color:var(--text-heading)}
.privacy-list li p{color:var(--text-muted);font-size:.93rem;margin:0}

/* ===== Form ===== */
.form-wrapper{max-width:560px;margin:0 auto;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 36px;transition:background .3s,border-color .3s}
.form-wrapper h2{font-size:1.4rem;font-weight:700;margin-bottom:8px;color:var(--text-heading)}
.form-wrapper .form-desc{color:var(--text-muted);font-size:.95rem;margin-bottom:28px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.88rem;font-weight:600;margin-bottom:6px;color:var(--text)}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:.95rem;font-family:inherit;transition:border-color .2s,background .3s,color .3s}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent)}
.form-group textarea{resize:vertical;min-height:120px}
.form-group small{display:block;margin-top:4px;color:var(--text-muted);font-size:.8rem}
.form-group.hidden{display:none}
.form-success{display:none;text-align:center;padding:32px;color:var(--green);font-weight:600;font-size:1.1rem}

/* ===== Legal (privacy page) ===== */
.legal{max-width:750px;margin:0 auto;padding:0 24px 60px}
.legal h2{font-size:1.3rem;font-weight:700;margin:40px 0 12px;color:var(--accent-light)}
.legal p,.legal li{color:var(--text-muted);font-size:.95rem;line-height:1.7}
.legal ul{margin:12px 0 12px 20px}
.legal li{margin-bottom:6px}

/* ===== Page header (sub-pages) ===== */
.page-header{padding:calc(var(--nav-h) + 48px) 24px 0;text-align:center;background:linear-gradient(180deg,var(--bg-alt) 0%,var(--bg) 100%)}
.page-header h1{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:800;margin-bottom:8px;color:var(--text-heading)}
.page-header p{color:var(--text-muted);max-width:540px;margin:0 auto}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--border);padding:32px 24px;text-align:center;color:var(--text-muted);font-size:.85rem;margin-top:40px;transition:border-color .3s}
.footer a{color:var(--text-muted)}
.footer a:hover{color:var(--accent-light)}
.footer__links{display:flex;gap:24px;justify-content:center;margin-bottom:12px;flex-wrap:wrap}

/* ===============================================================
   Responsive: Tablet (≤1024px)
   =============================================================== */
@media(max-width:1024px){
  .features{grid-template-columns:repeat(2,1fr)}
  .section{padding:60px 24px}
  .carousel__slide{width:200px}
}

/* ===============================================================
   Responsive: Mobile (≤768px)
   =============================================================== */
@media(max-width:768px){
  .nav__links{
    display:none;
    position:absolute;top:var(--nav-h);left:0;right:0;
    flex-direction:column;
    background:var(--bg-nav-mobile);
    padding:16px 24px;gap:16px;
    border-bottom:1px solid var(--border)
  }
  .nav__links.open{display:flex}
  .nav__hamburger{display:flex}
  .nav__right{gap:8px}
  .nav__toolbar{gap:6px}
  .features{grid-template-columns:1fr}
  .carousel{padding:0 48px}
  .carousel__slide{width:180px}
  .carousel__track{gap:14px}
  .form-wrapper{padding:28px 20px}
  .hero{padding:calc(var(--nav-h) + 40px) 16px 40px}
  .hero .subtitle{font-size:1rem}
  .section{padding:48px 16px}
  .section__title{font-size:clamp(1.3rem,4vw,1.8rem)}
  .section__subtitle{font-size:.95rem;margin-bottom:32px}
  .feature{padding:16px 16px}
  .privacy-list li{padding:16px 18px}
  .legal{padding:0 16px 40px}
  .footer__links{gap:16px}
}

/* ===============================================================
   Responsive: Mobile pequeño (≤480px)
   =============================================================== */
@media(max-width:480px){
  .hero h1{font-size:1.6rem}
  .badge{font-size:.7rem;padding:4px 8px;gap:3px}
  .btn{padding:12px 24px;font-size:.9rem}
  .carousel{padding:0 40px}
  .carousel__slide{width:150px}
  .carousel__track{gap:10px}
  .carousel__arrow{width:36px;height:36px}
  .carousel__arrow svg{width:22px;height:22px}
  .panoramic{padding:0 12px}
}