/* ==========================================================================
           1. CORE STYLES & VARIABLES (Linear & Railway Premium Theme)
           ========================================================================== */
        :root {
            --bg-main: #030712;         
            --bg-card: #0b1329;         
            --bg-card-hover: #111c44;   
            --border-color: #1f293d;    
            --text-primary: #f3f4f6;    
            --text-secondary: #9ca3af;  
            --brand-blue: #2563eb;      
            --brand-glow: #60a5fa;      
            --brand-purple: #8b5cf6;    
            --font-stack: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .glow-bg {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100vw;
            height: 900px;
            background: 
                radial-gradient(circle at 50% -20%, rgba(37, 99, 235, 0.15) 0%, rgba(3, 7, 18, 0) 60%),
                radial-gradient(circle at 20% 40%, rgba(139, 92, 246, 0.08) 0%, rgba(3, 7, 18, 0) 40%);
            z-index: -1;
            pointer-events: none;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            text-decoration: none;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--brand-blue);
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
        }

        .btn-primary:hover {
            background: #1d4ed8;
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: rgba(31, 41, 61, 0.4);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            background: rgba(31, 41, 61, 0.8);
            border-color: var(--text-secondary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand-glow);
            border: 1px solid rgba(59, 130, 246, 0.2);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px auto;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        /* ==========================================================================
           2. HEADER & NAVIGATION
           ========================================================================== */
        header {
            position: sticky;
            top: 0;
            background: rgba(3, 7, 18, 0.85);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 75px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            font-size: 1.35rem;
            font-weight: 800;
            color: #ffffff;
        }

        .logo span {
            background: linear-gradient(to right, var(--brand-glow), var(--brand-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-desktop a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .nav-desktop a:hover {
            color: #ffffff;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
        }

        /* Menú Móvil overlay */
        .nav-mobile-overlay {
            position: fixed;
            top: 75px;
            left: 0;
            width: 100%;
            height: calc(100vh - 75px);
            background: rgba(3, 7, 18, 0.98);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            padding: 40px 24px;
            display: flex;
            flex-direction: column;
            gap: 24px;
            transform: translateY(-100%);
            opacity: 0;
            pointer-events: none;
            transition: transform 0.3s ease, opacity 0.2s ease;
            z-index: 999;
        }

        .nav-mobile-overlay.active {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .nav-mobile-overlay a {
            color: var(--text-primary);
            text-decoration: none;
            font-size: 1.25rem;
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding-bottom: 12px;
        }

        /* ==========================================================================
           3. HERO & SECCIONES
           ========================================================================== */
        .hero {
            padding: 80px 0;
            text-align: center;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 850;
            line-height: 1.15;
            letter-spacing: -0.04em;
            max-width: 900px;
            margin: 0 auto 24px auto;
        }

        .hero h1 span {
            background: linear-gradient(to right, #3b82f6, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 32px auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }

        .hero-screenshot-container {
            background: linear-gradient(to bottom, rgba(255,255,255,0.04), transparent);
            border-radius: 16px;
            padding: 8px;
            border: 1px solid var(--border-color);
            box-shadow: 0 25px 50px -12px rgba(0,0,0,0.8);
        }

        .mock-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            display: block;
            background: #060b18; 
        }

        .tech-ticker {
            padding: 32px 0;
            border-bottom: 1px solid rgba(255,255,255,0.02);
            text-align: center;
        }

        .tech-ticker-title {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: #4b5563;
            margin-bottom: 20px;
        }

        .tech-logos-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 32px;
        }

        .tech-logo-item {
            font-size: 1rem;
            font-weight: 600;
            color: #4b5563;
        }

        .section-sistemas {
            padding: 80px 0;
        }

        .sistemas-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .sistema-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: border-color 0.2s, transform 0.2s;
        }

        .sistema-card:hover {
            border-color: rgba(59, 130, 246, 0.4);
            transform: translateY(-2px);
        }

        .sistema-info h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .sistema-info p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }

        .sistema-creds {
            display: flex;
            gap: 12px;
            font-size: 0.8rem;
            background: rgba(3, 7, 18, 0.6);
            padding: 10px;
            border-radius: 6px;
            margin-bottom: 20px;
            width: fit-content;
            border: 1px solid rgba(255,255,255,0.01);
        }

        .sistema-creds code { color: #f43f5e; }

        .sistema-screenshot {
            margin-top: 12px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

        .section-apps {
            padding: 80px 0;
            background: rgba(255,255,255,0.01);
        }

        .apps-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .apps-text-side h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .apps-text-side p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .apps-features-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .apps-features-list li {
            display: flex;
            gap: 10px;
            font-size: 0.95rem;
        }

        .apps-features-list li span { color: var(--brand-glow); font-weight: bold; }

        .apps-mockup-side {
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .phone-mockup {
            width: 200px;
            height: 400px;
            background: #080f21;
            border: 6px solid #1f293d;
            border-radius: 28px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0,0,0,0.5);
        }

        .phone-mockup.offset { margin-top: 32px; }
        .phone-screen { width: 100%; height: 100%; object-fit: cover; display: block; }

        .section-vps { padding: 80px 0; }

        .vps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .vps-card {
            background: linear-gradient(135deg, #090f1e 0%, #050811 100%);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 28px;
        }

        .vps-icon {
            width: 40px; height: 40px;
            background: rgba(139, 92, 246, 0.1);
            border-radius: 6px;
            display: flex; align-items: center; justify-content: center;
            color: var(--brand-purple); font-weight: bold;
            margin-bottom: 16px;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }

        .vps-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
        .vps-card p { color: var(--text-secondary); font-size: 0.85rem; }

        .section-contacto { padding: 80px 0; }

        .contact-box {
            background: #060b16;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
        }

        .contact-info-side h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
        .contact-info-side p { color: var(--text-secondary); margin-bottom: 24px; }
        .contact-meta { font-size: 0.85rem; color: #4b5563; }

        .contact-form { display: flex; flex-direction: column; gap: 16px; }
        .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
        .form-group { display: flex; flex-direction: column; gap: 4px; }
        .form-group label { font-size: 0.85rem; color: #cbd5e1; }
        
        .form-group input, .form-group textarea {
            background: #030712;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 10px 14px;
            color: #ffffff;
            font-family: inherit;
            font-size: 0.9rem;
        }

        .form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--brand-blue); }

        footer { border-top: 1px solid var(--border-color); padding: 32px 0; background: #02050c; color: var(--text-secondary); font-size: 0.85rem; }
        .footer-wrapper { display: flex; justify-content: space-between; align-items: center; }

        /* ==========================================================================
           4. MEDIA QUERIES RESPONSIVAS
           ========================================================================== */
        @media(max-width: 1024px) {
            .hero h1 { font-size: 2.8rem; }
            .sistemas-grid { grid-template-columns: 1fr; }
            .apps-wrapper { grid-template-columns: 1fr; }
            .apps-mockup-side { order: -1; }
            .vps-grid { grid-template-columns: 1fr; }
            .contact-box { grid-template-columns: 1fr; padding: 28px; }
        }

        @media(max-width: 768px) {
            .nav-desktop, .nav-right-btn { display: none; }
            .menu-toggle { display: block; }
            .hero h1 { font-size: 2.1rem; }
            .hero-actions { flex-direction: column; gap: 12px; }
            .form-row { grid-template-columns: 1fr; }
            .footer-wrapper { flex-direction: column; gap: 12px; text-align: center; }
        }