/* ===== CSS Custom Properties ===== */
:root {
    --bg: #f5f5f7;
    --bg-card: #fff;
    --text: #1a1a2e;
    --text-body: rgba(26,26,46,.7);
    --text-muted: rgba(26,26,46,.6);
    --text-faint: rgba(26,26,46,.5);
    --border: rgba(76,78,168,.06);
    --border-hover: rgba(76,78,168,.15);
    --nav-bg: rgba(245,245,247,.85);
    --form-bg: rgba(255,255,255,.8);
    --shadow: rgba(76,78,168,.06);
    --primary: #4C4EA8;
    --accent: #7a7cff;
    --gradient: linear-gradient(135deg, #4C4EA8, #7a7cff);
}
.dark {
    --bg: #0f0f1a;
    --bg-card: #1a1a2e;
    --text: #e0e0e8;
    --text-body: rgba(224,224,232,.8);
    --text-muted: rgba(224,224,232,.65);
    --text-faint: rgba(224,224,232,.5);
    --border: rgba(122,124,255,.1);
    --border-hover: rgba(122,124,255,.2);
    --nav-bg: rgba(15,15,26,.88);
    --form-bg: rgba(26,26,46,.6);
    --shadow: rgba(0,0,0,.3);
}

/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scrollbar-width:none}
::-webkit-scrollbar{display:none}
body{background:var(--bg);color:var(--text);font-family:'Inter',sans-serif;overflow-x:hidden;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
[id]{scroll-margin-top:90px}

/* ===== Canvas Background ===== */
#bg-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}

/* ===== Navigation ===== */
.nav{position:fixed;top:0;left:0;width:100%;z-index:100;padding:1.8rem 4%;display:flex;justify-content:space-between;align-items:center;background:var(--nav-bg);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background .3s,border-color .3s}
.nav-logo{height:33.6px}
.nav-brand{display:flex;align-items:center;text-decoration:none}
.nav-links{display:flex;gap:3rem;list-style:none}
.nav-links a{color:var(--text);text-decoration:none;font-size:.82rem;font-weight:500;letter-spacing:.3px;opacity:.45;transition:opacity .3s}
.nav-links a:hover,.nav-links a.active{opacity:1}
.nav-cta{padding:.55rem 1.4rem;border:1px solid var(--border-hover);border-radius:50px;color:var(--text);text-decoration:none;font-size:.82rem;font-weight:500;transition:.3s}
.nav-cta:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:1rem}

/* Dark Mode Toggle */
.theme-toggle{background:none;border:none;cursor:pointer;padding:.45rem;border-radius:50%;color:var(--text);transition:.3s;display:flex;align-items:center;justify-content:center;width:34px;height:34px}
.theme-toggle:hover{background:var(--border)}
.theme-toggle svg{width:18px;height:18px;fill:currentColor}
.theme-toggle .icon-moon{display:block}
.theme-toggle .icon-sun{display:none}
.dark .theme-toggle .icon-moon{display:none}
.dark .theme-toggle .icon-sun{display:block}

/* Hamburger */
.nav-hamburger{display:none;background:none;border:none;cursor:pointer;padding:.5rem;z-index:101}
.nav-hamburger span{display:block;width:20px;height:2px;background:var(--text);margin:4px 0;transition:.3s;border-radius:2px}
.nav-hamburger.active span:nth-child(1){transform:rotate(45deg) translate(4px,6px)}
.nav-hamburger.active span:nth-child(2){opacity:0}
.nav-hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(4px,-6px)}

/* Mobile Menu */
.mobile-menu{display:none;position:fixed;top:0;left:0;width:100%;height:100vh;background:var(--nav-bg);backdrop-filter:blur(20px);z-index:99;flex-direction:column;align-items:center;justify-content:center;gap:2.5rem;opacity:0;pointer-events:none;transition:.3s}
.mobile-menu.active{display:flex;opacity:1;pointer-events:auto}
.mobile-menu a{color:var(--text);text-decoration:none;font-size:1.3rem;font-weight:500;letter-spacing:.5px;opacity:0;transform:translateY(20px);transition:.3s}
.mobile-menu.active a{opacity:1;transform:translateY(0)}
.mobile-menu.active a:nth-child(1){transition-delay:.05s}
.mobile-menu.active a:nth-child(2){transition-delay:.1s}
.mobile-menu.active a:nth-child(3){transition-delay:.15s}
.mobile-menu.active a:nth-child(4){transition-delay:.2s}
.mobile-menu.active a:nth-child(5){transition-delay:.25s}
.mobile-menu.active a:nth-child(6){transition-delay:.3s}
.mobile-cta{padding:.7rem 1.8rem;border:1px solid rgba(76,78,168,.2);border-radius:50px;font-size:1rem !important}
.mobile-cta:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.mobile-theme-toggle{margin-top:1rem}
@media(max-width:900px){.nav-hamburger{display:block}.nav-links{display:none}.nav{padding:1.2rem 1.5rem}}

/* ===== Reveal Animations ===== */
.reveal{opacity:0;transform:translateY(70px);transition:all 1.1s cubic-bezier(.16,1,.3,1)}
.reveal.active{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.12s}
.reveal-delay-2{transition-delay:.24s}
.reveal-delay-3{transition-delay:.36s}
.reveal-delay-4{transition-delay:.48s}
.reveal-scale{opacity:0;transform:scale(.92);transition:all 1.2s cubic-bezier(.16,1,.3,1)}
.reveal-scale.active{opacity:1;transform:scale(1)}

/* ===== Buttons ===== */
.btn-primary{padding:.85rem 2rem;background:var(--primary);color:#fff;text-decoration:none;border-radius:50px;font-weight:600;font-size:.9rem;transition:.3s;border:none;cursor:pointer;letter-spacing:.2px;display:inline-block}
.btn-primary:hover{transform:scale(1.04);box-shadow:0 8px 30px rgba(76,78,168,.25)}
.btn-ghost{padding:.85rem 2rem;border:1px solid rgba(76,78,168,.2);color:var(--primary);text-decoration:none;border-radius:50px;font-weight:500;font-size:.9rem;transition:.3s;background:transparent;letter-spacing:.2px;display:inline-block}
.btn-ghost:hover{border-color:var(--primary);background:rgba(76,78,168,.05)}

/* ===== Contact Form ===== */
.contact-form{max-width:500px;margin:0 auto;text-align:left}
.form-group{margin-bottom:1.2rem}
.form-group input,.form-group textarea{width:100%;padding:1rem 1.2rem;border:1px solid var(--border-hover);border-radius:12px;font-family:'Inter',sans-serif;font-size:.92rem;background:var(--form-bg);transition:.3s;color:var(--text)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(76,78,168,.1)}
.form-group textarea{resize:vertical;min-height:120px}
.contact-form .btn-primary{width:100%;border:none;cursor:pointer;font-size:.95rem;padding:1rem}
.contact-form .btn-primary:hover{transform:none}

/* ===== Footer ===== */
.footer{padding:3rem 4%;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1;flex-wrap:wrap;gap:1rem;transition:border-color .3s}
.footer p{color:var(--text-faint);font-size:.82rem}
.footer a{color:var(--text-muted);text-decoration:none;transition:.3s;font-size:.82rem}
.footer a:hover{color:var(--primary)}
.footer-links{display:flex;gap:2.5rem;flex-wrap:wrap}
@media(max-width:900px){
    .footer{display:grid;grid-template-columns:1fr;text-align:center;padding:2rem 4%;gap:.8rem}
    .footer-links{justify-content:center;gap:1.5rem}
}

/* ===== Kit Card Component (shared) ===== */
.kit-card{border:1px solid var(--border);border-radius:20px;background:var(--bg-card);overflow:hidden;transition:.4s}
.kit-card:hover{border-color:var(--border-hover);transform:translateY(-5px);box-shadow:0 15px 40px var(--shadow)}
.kit-images{position:relative;display:flex;align-items:center;justify-content:center;padding:3rem 2rem;background:linear-gradient(135deg,rgba(76,78,168,.02),rgba(122,124,255,.03));min-height:320px;overflow:hidden}
.kit-slider{display:flex;transition:transform .8s cubic-bezier(.16,1,.3,1);width:100%}
.kit-slide{min-width:100%;flex-shrink:0;display:flex;align-items:center;justify-content:center;padding:0 1rem}
.kit-slide img{max-height:250px;object-fit:contain;filter:drop-shadow(0 10px 25px rgba(76,78,168,.08));transition:.4s}
.kit-card:hover .kit-slide img{transform:scale(1.05);filter:drop-shadow(0 15px 35px rgba(76,78,168,.12))}
.kit-dots{display:flex;gap:.5rem;justify-content:center;padding:1rem 0 0;position:absolute;bottom:1rem;left:50%;transform:translateX(-50%)}
.kit-dot{width:8px;height:8px;border-radius:50%;background:rgba(76,78,168,.15);cursor:pointer;transition:.3s}
.kit-dot.active{background:var(--primary);transform:scale(1.2)}
.kit-nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.9);border:1px solid var(--border-hover);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.3s;z-index:2;font-size:.8rem;color:var(--primary)}
.kit-nav:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.kit-nav.prev{left:1rem}
.kit-nav.next{right:1rem}
.kit-info{padding:2.5rem}
.kit-info .kit-label{font-size:.7rem;text-transform:uppercase;letter-spacing:3px;color:var(--primary);font-weight:600;margin-bottom:.8rem}
.kit-info h3{font-size:1.5rem;font-weight:700;letter-spacing:-.5px;margin-bottom:1rem}
.kit-info h3 .gradient{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.kit-info>p{font-size:.92rem;color:var(--text-body);line-height:1.8;font-weight:300;margin-bottom:1.5rem}
.kit-specs{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.kit-spec{padding:1rem;border:1px solid var(--border);border-radius:12px;background:rgba(76,78,168,.01)}
.kit-spec h4{font-size:.65rem;text-transform:uppercase;letter-spacing:2px;color:var(--primary);margin-bottom:.3rem;font-weight:600}
.kit-spec p{font-size:.8rem;color:var(--text-body);font-weight:300}
@media(max-width:600px){.kit-images{min-height:240px;padding:2rem 1.5rem}.kit-slide img{max-height:180px}}

/* ===== CTA Section (shared) ===== */
.cta-section{padding:6rem 5%;text-align:center;position:relative;z-index:1}
.cta-section h2{font-size:clamp(2.2rem,5vw,4.5rem);font-weight:800;letter-spacing:-3px;line-height:1.05;margin-bottom:1.8rem}
.cta-section h2 .gradient{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cta-section p{color:var(--text-muted);font-size:1.05rem;margin-bottom:3.5rem;font-weight:300;letter-spacing:.2px}
@media(max-width:900px){.cta-section{padding:4rem 5%}}
@media(max-width:600px){.cta-section{padding:3rem 5%}.cta-section h2{font-size:2.2rem;letter-spacing:-1px}.contact-form{padding:0 1rem}.contact-form input,.contact-form textarea{font-size:16px}}

/* ===== Toast Notifications ===== */
.toast-container{position:fixed;bottom:2rem;right:2rem;z-index:9999;display:flex;flex-direction:column;gap:.8rem;pointer-events:none}
.toast{padding:1rem 1.5rem;border-radius:12px;color:#fff;font-size:.9rem;font-weight:500;pointer-events:auto;transform:translateX(120%);transition:.4s cubic-bezier(.16,1,.3,1);box-shadow:0 8px 30px rgba(0,0,0,.2);max-width:340px}
.toast.show{transform:translateX(0)}
.toast.success{background:#22c55e}
.toast.error{background:#ef4444}
.toast.info{background:var(--primary)}
@media(max-width:600px){.toast-container{bottom:1rem;right:1rem;left:1rem}.toast{max-width:100%}}

/* ===== WhatsApp Widget ===== */
.whatsapp-float{position:fixed;bottom:2rem;left:2rem;z-index:998;width:56px;height:56px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(37,211,102,.4);cursor:pointer;transition:.3s;text-decoration:none}
.whatsapp-float:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(37,211,102,.5)}
.whatsapp-float svg{width:28px;height:28px;fill:#fff}
@media(max-width:600px){.whatsapp-float{bottom:1rem;left:1rem;width:50px;height:50px}.whatsapp-float svg{width:24px;height:24px}}

/* ===== Image Skeleton Loading ===== */
.skeleton{position:relative;overflow:hidden;background:var(--border);border-radius:inherit}
.skeleton::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);animation:skeleton-shimmer 1.5s infinite}
.dark .skeleton::after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent)}
@keyframes skeleton-shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ===== Page Load Animation ===== */
body{animation:pageFadeIn .5s ease-out}
@keyframes pageFadeIn{from{opacity:0}to{opacity:1}}