/* ==========================================================================
   ⚡ FLASH ELECTRIC - VERSIÓN DEFINITIVA (RESPONSIVE CORREGIDO) ⚡
   ========================================================================== */

:root {
    --primary-color: #FFD700;
    --primary-glow: rgba(255, 215, 0, 0.4);
    
    /* Variables Tema Oscuro */
    --bg-main: #050507;
    --bg-surface: rgba(20, 20, 25, 0.6); 
    --bg-input: rgba(0, 0, 0, 0.3);
    --text-light: #f8f9fa;
    --text-muted: #a0a0ab;
    --border-glass: rgba(255, 255, 255, 0.08);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --font-h1: clamp(2.5rem, 6vw, 4.5rem);
    --font-h2: clamp(2rem, 4vw, 3rem);
    --font-p: clamp(1rem, 1.2vw, 1.15rem);
    
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.26, 1.55);
    --base-font-size: 16px;
}

/* Tema Claro */
[data-theme="light"] {
    --bg-main: #f0f2f5;
    --bg-surface: rgba(255, 255, 255, 0.85);
    --bg-input: rgba(255, 255, 255, 0.9);
    --text-light: #1a1a2e; 
    --text-muted: #4b5563;
    --border-glass: rgba(0, 0, 0, 0.15);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', system-ui, sans-serif; }

/* FIX: Previene el scroll horizontal en móviles */
html, body { overflow-x: hidden; }
html { scroll-behavior: smooth; font-size: var(--base-font-size); }
body { background-color: var(--bg-main); color: var(--text-light); line-height: 1.6; transition: background-color var(--transition-smooth), color var(--transition-smooth); width: 100vw;}
a { text-decoration: none !important; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: 100px 0; }

/* Títulos Centrados Dinámicos */
.section-title {
    text-align: center; font-size: var(--font-h2); margin-bottom: 3.5rem; color: var(--text-light);
    position: relative; display: block; width: fit-content; margin-left: auto; margin-right: auto;
}
.section-title::after {
    content: ''; position: absolute; bottom: -12px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 4px; background: var(--primary-color); border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.section-title:hover::after { width: 100%; box-shadow: 0 0 10px var(--primary-glow); }

/* Botones */
.btn {
    display: inline-flex; align-items: center; justify-content: center; padding: 14px 32px; 
    border-radius: 50px; font-weight: 700; border: none; cursor: pointer; text-transform: uppercase;
    transition: all 0.3s ease; position: relative; overflow: hidden;
}
.btn-primary { background: var(--primary-color); color: #000; box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.btn-primary:hover { transform: translateY(-5px); box-shadow: 0 10px 25px var(--primary-glow); }
.btn-secondary { background: transparent; border: 2px solid var(--primary-color); color: var(--text-light); }
.btn-secondary:hover { background: var(--primary-color); color: #000; box-shadow: 0 10px 20px var(--primary-glow); }

/* Navbar */
.navbar { position: fixed; top: 0; width: 100%; z-index: 1000; padding: 25px 0; transition: var(--transition-smooth); background: transparent; }
.navbar.scrolled { padding: 15px 0; background: var(--bg-surface); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-glass); }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 2rem; font-weight: 900; color: var(--primary-color); text-shadow: 0 0 15px rgba(255, 215, 0, 0.2); }
.nav-menu { display: flex; list-style: none; gap: 30px; }
.nav-link { color: var(--text-light); font-weight: 600; transition: var(--transition-smooth); }
.nav-link:hover { color: var(--primary-color); }
.hamburger { display: none; cursor: pointer; }
.bar { display: block; width: 25px; height: 3px; margin: 5px auto; background: var(--text-light); }

/* Hero */
.hero {
    height: 100vh; display: flex; align-items: center; position: relative;
    background: linear-gradient(rgba(5, 5, 7, 0.8), rgba(5, 5, 7, 0.9)), url('https://images.unsplash.com/photo-1581092160562-40aa08e78837?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
}
.hero-content { max-width: 800px; z-index: 2; }
.hero h1 { font-size: var(--font-h1); font-weight: 900; margin-bottom: 20px; color: #ffffff; }
.hero h1 span.highlight { color: var(--primary-color); }
.hero p { font-size: var(--font-p); color: #dddddd; margin-bottom: 30px; max-width: 600px; }

/* Stats & Services Premium */
.stats-section { margin-top: -50px; position: relative; z-index: 10; padding-bottom: 80px;}
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.stat-item { 
    background: var(--bg-surface); border: 1px solid var(--border-glass); padding: 30px; border-radius: 20px; text-align: center; 
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: var(--shadow-glass); transition: var(--transition-smooth);
}
.stat-item:hover { transform: translateY(-10px); border-color: var(--primary-color); }
.stat-item i { font-size: 3rem; color: var(--primary-color); margin-bottom: 15px; filter: drop-shadow(0 0 10px var(--primary-glow)); }
.stat-item h3 { font-size: 3.5rem; color: var(--text-light); font-weight: 900; line-height: 1; margin-bottom: 5px;}
.stat-item p { text-transform: uppercase; letter-spacing: 1px; font-size: 0.9rem; font-weight: bold; color: var(--text-muted); }

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }
.service-card {
    background: var(--bg-surface); border: 1px solid var(--border-glass); padding: 50px 40px; border-radius: 24px; transition: var(--transition-smooth);
    position: relative; overflow: hidden; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.08), transparent); transform: skewX(-20deg); transition: var(--transition-smooth); z-index: 1;
}
.service-card:hover::before { left: 200%; transition: 0.7s ease-in-out; }
.service-card:hover { transform: translateY(-15px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); border-color: rgba(255, 215, 0, 0.4); }
.service-card * { position: relative; z-index: 2; } 
.service-card i { font-size: 3.5rem; color: var(--primary-color); margin-bottom: 25px; transition: var(--transition-bounce); display: inline-block; }
.service-card:hover i { transform: scale(1.15) rotate(5deg); filter: drop-shadow(0 0 15px var(--primary-glow)); }
.service-card h3 { color: var(--text-light); margin-bottom: 15px; font-size: 1.5rem; font-weight: 700; }
.service-card p { color: var(--text-muted); line-height: 1.7; }

/* Calculadora */
.calculator-box {
    background: var(--bg-surface); padding: 50px; border-radius: 24px; max-width: 600px; margin: 0 auto;
    border: 1px solid var(--border-glass); backdrop-filter: blur(15px); box-shadow: var(--shadow-glass);
}
.calc-group { margin-bottom: 25px; }
.calc-group label { display: block; margin-bottom: 10px; font-weight: 600; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; font-size: 0.9rem;}
.calc-group select, .calc-group input {
    width: 100%; padding: 16px; background: var(--bg-input); border: 1px solid var(--border-glass);
    color: var(--text-light); border-radius: 12px; outline: none; font-size: 1.1rem; transition: 0.3s;
}
.calc-group select:focus, .calc-group input:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1); }
#precio-final { font-size: clamp(2.5rem, 5vw, 4rem); color: var(--primary-color); font-weight: 900; margin-top: 15px; text-shadow: 0 0 20px var(--primary-glow); }
.resultado-oculto { display: none; text-align: center; margin-top: 20px; }
.resultado-oculto.mostrar { display: block; animation: fadeIn 0.5s; }

/* FAQ */
.accordion { max-width: 800px; margin: 0 auto; }
.accordion-item { background: var(--bg-surface); margin-bottom: 15px; border-radius: 12px; border: 1px solid var(--border-glass); transition: 0.3s;}
.accordion-item:hover { border-color: rgba(255, 255, 255, 0.2); }
.accordion-header { padding: 25px; font-weight: bold; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text-light); font-size: 1.1rem; }
.accordion-header i { transition: transform var(--transition-bounce); color: var(--primary-color); }
.accordion-header.active i { transform: rotate(180deg); }
.accordion-body { max-height: 0; padding: 0 25px; overflow: hidden; color: var(--text-muted); transition: all 0.4s ease; font-size: 1rem;}
.accordion-header.active + .accordion-body { padding: 0 25px 25px; }

/* Footer Premium */
.footer { position: relative; background-color: #030304; border-top: 1px solid var(--border-glass); padding: 100px 0 20px 0; overflow: hidden; }
.footer-glow { position: absolute; top: -150px; left: 50%; transform: translateX(-50%); width: 600px; height: 300px; background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%); opacity: 0.3; pointer-events: none; z-index: 0; }
.footer .container { position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 60px; margin-bottom: 60px; }
.footer-brand h2 { color: var(--text-light); font-size: 2.5rem; margin-bottom: 20px; font-weight: 900;}
.footer-brand p { color: var(--text-muted); margin-bottom: 25px; line-height: 1.8; font-size: 1rem; }
.social-links { display: flex; gap: 15px; }
.social-links a { display: flex; justify-content: center; align-items: center; width: 45px; height: 45px; background: var(--bg-surface); border: 1px solid var(--border-glass); border-radius: 12px; color: var(--text-light); font-size: 1.2rem; transition: var(--transition-bounce); }
.social-links a:hover { background: var(--primary-color); color: #000; transform: translateY(-5px); box-shadow: 0 10px 20px var(--primary-glow); border-color: var(--primary-color); }
.footer-info h3 { color: var(--text-light); font-size: 1.4rem; margin-bottom: 25px; position: relative; padding-bottom: 10px;}
.footer-info h3::after { content: ''; position: absolute; left: 0; bottom: 0; width: 40px; height: 3px; background: var(--primary-color); border-radius: 2px; }
.contact-list { list-style: none; }
.contact-list li { margin-bottom: 18px; display: flex; align-items: center; gap: 15px; color: var(--text-muted); font-size: 1rem; transition: 0.3s;}
.contact-list li:hover { color: var(--primary-color); transform: translateX(5px); }
.contact-list i { color: var(--primary-color); font-size: 1.2rem; width: 20px; text-align: center;}
.glass-form-card { background: var(--bg-surface); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--border-glass); padding: 35px; border-radius: 20px; box-shadow: var(--shadow-glass); }
.glass-form-card h3 { color: var(--text-light); margin-bottom: 20px; font-size: 1.3rem;}
.contact-form { display: flex; flex-direction: column; gap: 15px; }
.contact-form input, .contact-form textarea { padding: 16px; background: var(--bg-input); border: 1px solid var(--border-glass); color: var(--text-light); border-radius: 12px; width: 100%; outline: none; transition: 0.3s; font-size: 1rem; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary-color); background: rgba(0,0,0,0.5); box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1); }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid var(--border-glass); color: var(--text-muted); font-size: 0.9rem; letter-spacing: 0.5px; }

/* FIX PROFUNDO: FAB & Configuración para que no bloquee clics */
.fab-container { 
    position: fixed; bottom: 30px; right: 30px; display: flex; flex-direction: column; gap: 15px; 
    z-index: 9999; align-items: flex-end;
    /* La magia: esto hace que el contenedor general "deje pasar" los clics */
    pointer-events: none; 
}

/* Reactivamos los clics SOLO en los botones que sí queremos presionar */
.fab-btn { 
    width: 60px; height: 60px; border-radius: 50%; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: white; box-shadow: 0 10px 25px rgba(0,0,0,0.3); transition: var(--transition-bounce); 
    pointer-events: auto; 
}
.fab-btn.whatsapp { background: #25D366; }
.fab-btn.whatsapp:hover { background: #1ebe57; transform: scale(1.15) rotate(-5deg); }
.fab-btn.settings { background: var(--bg-surface); backdrop-filter: blur(10px); color: var(--text-light); border: 1px solid var(--border-glass); font-size: 1.4rem; }
.fab-btn.settings:hover { background: var(--primary-color); color: #000; transform: rotate(90deg); }

.settings-panel { 
    /* Lo sacamos del flujo normal para que no empuje nada */
    position: absolute; bottom: 160px; right: 0;
    background: var(--bg-surface); backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px); border: 1px solid var(--border-glass); border-radius: 20px; padding: 25px; width: 280px; box-shadow: 0 15px 40px rgba(0,0,0,0.5); 
    opacity: 0; visibility: hidden; transform: translateY(30px) scale(0.9); transition: var(--transition-bounce); transform-origin: bottom right; 
    pointer-events: none; /* Cuando no se ve, no bloquea nada */
}

.settings-panel.show { 
    opacity: 1; visibility: visible; transform: translateY(0) scale(1); 
    pointer-events: auto; /* Cuando se abre, ya puedes interactuar con él */
}

.settings-panel h4 { margin-bottom: 15px; color: var(--primary-color); font-size: 1.2rem;}
.settings-panel hr { border: 0; border-top: 1px solid var(--border-glass); margin-bottom: 15px; }
.setting-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; color: var(--text-light); font-weight: 600;}
.icon-btn { background: var(--bg-input); color: var(--text-light); border: 1px solid var(--border-glass); padding: 10px 15px; border-radius: 8px; cursor: pointer; transition: 0.3s; font-weight: bold; }
.icon-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }
.settings-panel select { background: var(--bg-input); color: var(--text-light); border: 1px solid var(--border-glass); padding: 8px; border-radius: 8px; outline: none;}
.fade-in { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Ajustes Extra para Responsive (Móviles) */
@media (max-width: 992px) { 
    .footer-grid { grid-template-columns: 1fr 1fr; } 
    .footer-form-wrapper { grid-column: 1 / -1; } 
}
@media (max-width: 768px) {
    .hamburger { display: block; z-index: 1001;}
    .nav-menu { 
        position: fixed; left: -100%; top: 0; width: 100vw; height: 100vh; 
        background: var(--bg-surface); backdrop-filter: blur(20px); flex-direction: column; justify-content: center; align-items: center; transition: 0.4s; 
    }
    .nav-menu.active { left: 0; } 
    .nav-link { font-size: 1.5rem; margin: 15px 0; }
    
    /* Espaciados corregidos para pantallas pequeñas */
    .stats-grid, .footer-grid { grid-template-columns: 1fr; gap: 30px;}
    .calculator-box { padding: 30px 20px; }
    
    /* Ajuste de botones flotantes para que no roben tanta pantalla */
    .fab-container { bottom: 20px; right: 20px; }
    .fab-btn { width: 50px; height: 50px; font-size: 1.4rem; }
    .settings-panel { bottom: 140px; width: 260px; right: 0; }
}